Pump body assembly and compressor with same

Abstract

The utility model provides a pump body assembly and a compressor with the pump body assembly. The pump body assembly comprises a pump body structure and a vibration reduction structure, and the pump body structure comprises a pump body and a movable part connected with the pump body; the vibration reduction structure is a rotary structure formed by rotating a vibration reduction section along a preset axis, at least part of the edge of the vibration reduction section forms a vibration reduction curve, and the vibration reduction curve meets a power function equation; wherein a vibration reduction structure is arranged on the movable part, and the movable part comprises a crankshaft and / or a bearing structure. By means of the technical scheme, the technical problem that in the prior art, noise is large due to large vibration of a compressor can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and in particular, to a pump body assembly and a compressor having the same. Background Art

[0002] At present, with the improvement of people's living standards, higher requirements are put forward for the noise of air conditioners. As the core component and main noise source of air conditioners, vibration reduction and noise reduction of compressors are particularly important.

[0003] However, the pump body assembly of the compressor is a moving part for compressing refrigerant, and there are various dynamic exciting forces such as electromagnetic, pneumatic and mechanical, which excite the vibration of the pump body. And the vibration of the pump body will be further transmitted to the outer casing and the liquid receiver, so that the vibration of the compressor causes greater noise. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a pump body assembly and a compressor having the same, so as to solve the problem that the compressor in the prior art generates greater noise due to greater vibration.

[0005] To achieve the above object, according to one aspect of the utility model, a pump body assembly is provided, including a pump body structure and a vibration reduction structure. The pump body structure includes a pump body and a moving part connected to the pump body. The vibration reduction structure is a rotary structure formed by rotating a vibration reduction cross-section along a predetermined axis. At least part of the edge of the vibration reduction cross-section forms a vibration reduction curve, and the vibration reduction curve satisfies a power function equation. Wherein, the vibration reduction structure is provided on the moving part, and the moving part includes a crankshaft and / or a bearing structure.

[0006] Further, the crankshaft has two opposite ends, and the vibration reduction structure is provided at least at one end of the crankshaft; and / or, the bearing structure includes a main bearing and a sub-bearing, and the vibration reduction structure is provided at one end of the main bearing away from the sub-bearing and / or at one end of the sub-bearing away from the main bearing.

[0007] Further, at least part of the vibration reduction structure and the moving part is an integrally formed structure; or, at least part of the vibration reduction structure and the moving part are connected by interference fit; or, at least part of the vibration reduction structure and the moving part are connected by threads; or, at least part of the vibration reduction structure and the moving part are welded.

[0008] Further, the power function equation is y = a(x - x0) m + y0, x0 ≤ x ≤ x1, where x is the abscissa of any point on the vibration reduction curve, y is the ordinate of any point on the vibration reduction curve, x0 and x1 are respectively the abscissas of the starting end and the ending end of the vibration reduction curve, and y0 is the ordinate of the starting end of the vibration reduction curve; wherein, a > 0, m ≥ 2.

[0009] Further, the vibration damping structure is made of a high-damping alloy material; and / or, the vibration damping structure has a relatively arranged large-head section and small-head section, and the cross-sectional area of the small-head section is smaller than that of the large-head section, and a damping layer or coating is provided at the small-head section.

[0010] Further, the edge of the vibration damping cross-section includes a straight-line segment, and the two ends of the straight-line segment are respectively connected to the two ends of the vibration damping curve, and the straight-line segment coincides with or is parallel to the predetermined axis.

[0011] Further, the vibration damping curve rotates along the predetermined axis to form a vibration damping surface; the vibration damping surface forms at least a part of the outer peripheral surface of the vibration damping structure; or, the vibration damping structure is an annular structure, and the annular structure is sleeved on at least a part of the movable component, and the vibration damping surface forms the inner ring surface or the outer ring surface of the annular structure; or, the vibration damping structure is an annular structure, and the annular structure is sleeved on at least a part of the movable component, the vibration damping curve is at least two segments, and at least two vibration damping curves are arranged at intervals and rotate along the predetermined axis to form at least two vibration damping surfaces arranged at intervals, and one of the at least two vibration damping surfaces forms the inner ring surface of the annular structure, and the other of the at least two vibration damping surfaces forms the outer ring surface of the annular structure.

[0012] Further, a partition groove is provided on the vibration damping structure, and the partition groove extends axially to penetrate through the two axial ends of the vibration damping structure, and there are at least two partition grooves, and the at least two partition grooves are arranged at intervals along the circumferential direction of the vibration damping structure, and the vibration damping structure is separated into at least two vibration damping parts connected together.

[0013] Further, the vibration damping curve rotates along the predetermined axis to form a vibration damping surface, and a vibration damping structure is provided at the top of the crankshaft of the pump body structure; wherein, the vibration damping surface forms the outer peripheral surface of the vibration damping structure; along the extension direction from the bottom of the crankshaft to the top of the crankshaft, the cross-sectional area of the vibration damping structure gradually decreases; or, the vibration damping surface forms the outer peripheral surface of the vibration damping structure, and an installation groove is provided at the top of the crankshaft, and the vibration damping structure is installed in the installation groove, and the vibration damping surface is located in the installation groove; or, the vibration damping structure is an annular structure, and the annular structure is sleeved on the top of the crankshaft, and the vibration damping surface forms the inner ring surface of the annular structure; along the extension direction from the bottom of the crankshaft to the top of the crankshaft, the flow cross-section of the inner ring surface gradually increases; or, the vibration damping structure is an annular structure, and the annular structure is sleeved on the top of the crankshaft, and the vibration damping surface forms the outer ring surface of the annular structure; along the extension direction from the bottom of the crankshaft to the top of the crankshaft, the cross-sectional area of the vibration damping structure gradually increases.

[0014] Furthermore, the vibration damping structure includes a first vibration damping member and a second vibration damping member which are connected. The first vibration damping member is a first rotating portion formed by rotating along a predetermined axis, and the second vibration damping member is a second rotating portion formed by rotating along the predetermined axis. The vibration damping curve includes a first curve segment and a second curve segment which are arranged at intervals. The first vibration damping member is sleeved on the top of the crankshaft of the pump body structure. The first vibration damping member is a ring structure. The first curve segment rotates along the predetermined axis to form the outer ring surface of the first vibration damping member. The second vibration damping member is a ring structure. The second curve segment rotates along the predetermined axis to form the outer ring surface of the second vibration damping member. The outer ring surface of the first vibration damping member is connected to the inner ring surface of the second vibration damping member. At least a part of the outer ring surface of the first vibration damping member extends out of the second vibration damping member. The first vibration damping member and the second vibration damping member are of a split structure or an integrally formed structure; wherein, along the extending direction from the bottom to the top of the crankshaft, the cross-sectional area of the first vibration damping member gradually decreases; and / or, along the extending direction from the bottom to the top of the crankshaft, the cross-sectional area of the second vibration damping member gradually increases.

[0015] Furthermore, the vibration damping structure is sleeved on the upper part of the bearing structure. A part of the vibration damping surface forms at least a part of the outer ring surface of the vibration damping structure; along the extending direction from the bottom to the top of the crankshaft, the cross-sectional area of the vibration damping structure gradually increases; wherein, the distance from the outer ring surface to the central axis of the crankshaft is greater than the outer diameter of the rotor of the pump body structure; and / or, another part of the vibration damping surface is arranged axially along with a part of the vibration damping surface. Another part of the vibration damping surface protrudes from the upper end of the bearing structure. Another part of the vibration damping surface is arranged at intervals with the crankshaft and forms at least a part of the inner ring surface of the vibration damping structure.

[0016] Furthermore, the vibration damping structure is sleeved on the lower part of the crankshaft. At least a part of the vibration damping surface forms at least a part of the outer ring surface of the vibration damping structure; along the extending direction from the bottom to the top of the crankshaft, the cross-sectional area of the vibration damping structure gradually decreases; wherein, the distance from the outer ring surface to the central axis of the crankshaft is less than the outer diameter of the rotor of the pump body structure; and / or, another part of the vibration damping surface is arranged axially along with a part of the vibration damping surface. Another part of the vibration damping surface protrudes from the lower end of the bearing structure. Another part of the vibration damping surface forms at least a part of the inner ring surface of the vibration damping structure.

[0017] Furthermore, the vibration damping structure includes a third vibration damping member and a fourth vibration damping member which are connected. The third vibration damping member is a third rotating portion formed by rotating along a predetermined axis, and the fourth vibration damping member is a fourth rotating portion formed by rotating along the predetermined axis. The vibration damping curve includes a third curve segment and a fourth curve segment which are arranged at intervals. The third vibration damping member is arranged at the bottom of the bearing structure. The third vibration damping member is an annular structure. The third curve segment rotates along the predetermined axis to form the inner ring surface of the third vibration damping member. The fourth vibration damping member is an annular structure and is sleeved on the bottom of the bearing structure. The fourth curve segment rotates along the predetermined axis to form the outer ring surface of the fourth vibration damping member. The outer ring surface of the third vibration damping member is connected to the inner ring surface of the fourth vibration damping member. At least a part of the outer ring surface of the third vibration damping member extends out of the fourth vibration damping member. The third vibration damping member and the fourth vibration damping member are of a split structure or an integrally formed structure; wherein, along the extending direction from the bottom of the crankshaft to the top of the crankshaft, the cross-sectional area of the third vibration damping member gradually increases; and / or, along the extending direction from the bottom of the crankshaft to the top of the crankshaft, the cross-sectional area of the second vibration damping member gradually decreases.

[0018] Furthermore, the vibration damping structure includes a fifth vibration damping member, a sixth vibration damping member and a seventh vibration damping member which are connected. The vibration damping curve includes a fifth curve segment, a sixth curve segment and a seventh curve segment which are arranged at intervals. The fifth vibration damping member is a solid structure. The fifth curve segment rotates along the predetermined axis to form the outer peripheral surface of the fifth vibration damping member. The fifth vibration damping member is arranged at the top of the crankshaft. The sixth vibration damping member and the seventh vibration damping member are both annular structures. The sixth vibration damping member is sleeved on the fifth vibration damping member. The sixth curve segment rotates along the predetermined axis to form the inner ring surface of the sixth vibration damping member. The seventh vibration damping member is sleeved on the sixth vibration damping member. The seventh curve segment rotates along the predetermined axis to form the outer ring surface of the seventh vibration damping member. The fifth vibration damping member and the sixth vibration damping member both protrude out of the seventh vibration damping member. The fifth vibration damping member, the sixth vibration damping member and the seventh vibration damping member are of a split structure or an integrally formed structure; wherein, along the extending direction from the bottom of the crankshaft to the top of the crankshaft, the cross-sectional area of the fifth vibration damping member gradually decreases; and / or, along the extending direction from the bottom of the crankshaft to the top of the crankshaft, the flow cross-sectional area of the sixth vibration damping member gradually increases; and / or, along the extending direction from the bottom of the crankshaft to the top of the crankshaft, the cross-sectional area of the seventh vibration damping member gradually increases.

[0019] Further, the vibration damping structure includes an eighth vibration damping member, a ninth vibration damping member, and a tenth vibration damping member that are connected and arranged. The vibration damping curve includes an eighth curve segment, a ninth curve segment, and a tenth curve segment that are arranged at intervals. The eighth vibration damping member, the ninth vibration damping member, and the tenth vibration damping member are all annular structures. The eighth vibration damping member and the ninth vibration damping member are both arranged at the bottom end of the bearing structure. The eighth curve segment rotates along a predetermined axis to form the inner ring surface of the eighth vibration damping member. The ninth vibration damping member is sleeved on the eighth vibration damping member. The ninth curve segment rotates along the predetermined axis to form the inner ring surface of the ninth vibration damping member. The tenth vibration damping member is sleeved on the ninth vibration damping member. The tenth curve segment rotates along the predetermined axis to form the outer ring surface of the tenth vibration damping member. The eighth vibration damping member and the ninth vibration damping member both protrude from the tenth vibration damping member. The eighth vibration damping member, the ninth vibration damping member, and the tenth vibration damping member are of a split structure or an integrally formed structure. Among them, along the extension direction from the bottom to the top of the crankshaft, the flow cross-section of the eighth vibration damping member gradually decreases; and / or, along the extension direction from the bottom to the top of the crankshaft, the flow cross-sectional area of the ninth vibration damping member gradually decreases; and / or, along the extension direction from the bottom to the top of the crankshaft, the cross-sectional area of the tenth vibration damping member gradually decreases.

[0020] Further, the vibration damping structure includes an eighth vibration damping member, a ninth vibration damping member, and a tenth vibration damping member that are connected and arranged. The vibration damping curve includes an eighth curve segment, a ninth curve segment, and a tenth curve segment that are arranged at intervals. The eighth vibration damping member, the ninth vibration damping member, and the tenth vibration damping member are all annular structures. The eighth vibration damping member and the ninth vibration damping member are both arranged at the bottom end of the bearing structure. The eighth curve segment rotates along a predetermined axis to form the inner ring surface of the eighth vibration damping member. The ninth vibration damping member is sleeved on the eighth vibration damping member. The ninth curve segment rotates along the predetermined axis to form the inner ring surface of the ninth vibration damping member. The tenth vibration damping member is sleeved on the ninth vibration damping member. The tenth curve segment rotates along the predetermined axis to form the outer ring surface of the tenth vibration damping member. The eighth vibration damping member and the ninth vibration damping member both protrude from the tenth vibration damping member. The eighth vibration damping member, the ninth vibration damping member, and the tenth vibration damping member are of a split structure or an integrally formed structure. Among them, along the extension direction from the bottom to the top of the crankshaft, the flow cross-section of the eighth vibration damping member gradually decreases; and / or, along the extension direction from the bottom to the top of the crankshaft, the flow cross-sectional area of the ninth vibration damping member gradually decreases; and / or, along the extension direction from the bottom to the top of the crankshaft, the cross-sectional area of the tenth vibration damping member gradually decreases.

[0021] According to another aspect of the present invention, a compressor is provided, which includes the pump body assembly provided above.

[0022] Applying the technical solution of the present invention, by arranging the vibration damping structure at the moving part, and the moving part corresponds to the position where the vibration response of the pump body assembly is relatively large, this can effectively reduce the vibration of the pump body assembly, and further reduce the noise caused by the vibration of the pump body assembly. Description of the Drawings

[0023] The accompanying drawings of the specification, which form a part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0024] Figure 1 shows a schematic cross-sectional view of a pump body assembly provided according to Embodiment 1 of the present utility model;

[0025] Figure 2 shows a schematic cross-sectional view of a vibration damping structure provided according to Embodiment 1 of the present utility model;

[0026] Figure 3 shows a schematic top view of a vibration damping structure provided according to Embodiment 1 of the present utility model;

[0027] Figure 4 shows a schematic view of the positions corresponding to the vibration damping required for the pump body assembly provided according to the present utility model;

[0028] Figure 5 shows a schematic view of an installation structure of a vibration damping structure provided according to Embodiment 1 of the present utility model;

[0029] Figure 6 shows a schematic view of another installation structure of a vibration damping structure provided according to Embodiment 1 of the present utility model;

[0030] Figure 7 shows a schematic view of yet another installation structure of a vibration damping structure provided according to Embodiment 1 of the present utility model;

[0031] Figure 8 shows a schematic sectional coordinate view of the vibration damping section of the vibration damping structure according to the present utility model;

[0032] Figure 9 shows a schematic cross-sectional view of the additional damping layer of the vibration damping section of the vibration damping structure according to the present utility model;

[0033] Figure 10 shows a schematic semi-sectional view of a vibration damping structure with a central hole provided according to an embodiment of the present utility model;

[0034] Figure 11 shows a schematic view of the vibration damping curved surface plane of a vibration damping structure with a central hole provided according to an embodiment of the present utility model;

[0035] Figure 12 shows a schematic semi-sectional view of a vibration damping structure with an inner ring surface as the vibration damping surface provided according to an embodiment of the present utility model;

[0036] Figure 13Shows a schematic plan view of a vibration damping surface of a vibration damping structure with an inner ring surface according to an embodiment of the present invention;

[0037] Figure 14 Shows a schematic semi-sectional view of a vibration damping structure with an inner ring surface as the vibration damping surface and a ring-shaped structure according to an embodiment of the present invention;

[0038] Figure 15 Shows a schematic plan view of a vibration damping surface of a vibration damping structure with an inner ring surface and a ring-shaped structure according to an embodiment of the present invention;

[0039] Figure 16 Shows a schematic semi-sectional view of a vibration damping structure with an outer ring surface as the vibration damping surface according to an embodiment of the present invention;

[0040] Figure 17 Shows a schematic plan view of a vibration damping surface of a vibration damping structure with an outer ring surface according to an embodiment of the present invention;

[0041] Figure 18 Shows a schematic semi-sectional view of a vibration damping structure with an outer ring surface as the vibration damping surface and a ring-shaped structure according to an embodiment of the present invention;

[0042] Figure 19 Shows a schematic plan view of a vibration damping surface of a vibration damping structure with an outer ring surface and a ring-shaped structure according to an embodiment of the present invention;

[0043] Figure 20 Shows a schematic view of a vibration damping structure located at the top of a crankshaft;

[0044] Figure 21 Shows a schematic view of a vibration damping structure provided with a separation groove according to an embodiment of the present invention;

[0045] Figure 22 Shows a schematic sectional view of a pump body assembly according to Embodiment 2 of the present invention;

[0046] Figure 23 Shows a schematic sectional view of a pump body assembly according to Embodiment 3 of the present invention;

[0047] Figure 24 Shows a schematic sectional view of a pump body assembly according to Embodiment 4 of the present invention;

[0048] Figure 25 Shows a schematic sectional view of a pump body assembly according to Embodiment 5 of the present invention;

[0049] Figure 26 Shows a schematic sectional view of a pump body assembly according to Embodiment 6 of the present invention;

[0050] Figure 27 Shows a schematic cross-sectional view of a pump body assembly provided according to Embodiment 7 of the present utility model;

[0051] Figure 28 Shows a schematic cross-sectional view of a pump body assembly provided according to Embodiment 8 of the present utility model;

[0052] Figure 29 Shows a schematic cross-sectional view of a pump body assembly provided according to Embodiment 9 of the present utility model;

[0053] Figure 30 Shows a schematic cross-sectional view of a pump body assembly provided according to Embodiment 10 of the present utility model;

[0054] Figure 31 Shows a schematic cross-sectional view of a compressor provided according to an embodiment of the present utility model;

[0055] Figure 32 Shows a schematic installation structure diagram of a rotor of a pump body assembly provided according to the present utility model;

[0056] Figure 33 Shows a schematic structure diagram of a pump body assembly provided according to an embodiment of the present utility model, in which a vibration damping structure is provided on the upper part of the bearing structure.

[0057] Among them, the above-mentioned drawings include the following reference numerals:

[0058] 1000, pump body structure; 1100, pump body; 1200, moving part; 1210, crankshaft; 1220, bearing structure; 1221, main bearing; 1222, auxiliary bearing; 1230, rotor;

[0059] 2000, vibration damping structure; 2100, vibration damping section; 2110, vibration damping curve; 2120, straight line segment; 2200, separation groove; 2300, vibration damping curved surface; 2400, large head section; 2500, small head section; 2600, first vibration damping member; 2610, second vibration damping member; 2620, third vibration damping member; 2630, fourth vibration damping member; 2640, fifth vibration damping member; 2650, sixth vibration damping member; 2660, seventh vibration damping member; 2670, eighth vibration damping member; 2680, ninth vibration damping member; 2690, tenth vibration damping member; 2700, damping layer or coating. Detailed implementation manners

[0060] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0061] As Figures 1 to 33As shown in the figure, an embodiment of the present utility model provides a pump body assembly, which includes a pump body structure 1000 and a vibration damping structure 2000. The pump body structure 1000 includes a pump body 1100 and a movable part 1200 connected to the pump body 1100. The vibration damping structure 2000 is a rotary structure formed by rotating a vibration damping cross-section 2100 along a predetermined axis. At least part of the edge of the vibration damping cross-section 2100 forms a vibration damping curve 2110, and the vibration damping curve 2110 satisfies a power function equation. Among them, the vibration damping structure 2000 is provided on the movable part 1200, and the movable part 1200 includes a crankshaft 1210 and / or a bearing structure 1220.

[0062] By adopting the technical solution provided in this embodiment, by arranging the vibration damping structure 2000 at the movable part 1200 where the vibration is relatively large, the vibration at the movable part 1200 can be effectively reduced, and further the noise generated by the vibration can be effectively reduced. Therefore, through the technical solution provided in this embodiment, the problem that the compressor in the prior art generates a large amount of noise due to large vibration can be solved.

[0063] Specifically, the vibration damping structure 2000 is a symmetric rotary structure formed by rotating the generatrix on the vibration damping cross-section 2100 along the central axis. The generatrix is the vibration damping curve 2110, and the vibration damping curve 2110 meets the requirements of an acoustic black hole or a non-perfect acoustic black hole structure.

[0064] Specifically, the vibration damping curve 2110 can form the outer peripheral surface of the vibration damping structure 2000. Along the extension direction from the bottom to the top of the central axis, the cross-sectional area of the vibration damping structure 2000 gradually decreases. The overall shape of the vibration damping structure 2000 is similar to a cone. According to the principle of acoustic black hole, when the pump body 1100 vibrates, the vibration wave is absorbed by the vibration damping structure 2000, so that the vibration response of the pump body structure 1000 can be reduced, and the noise can be effectively reduced.

[0065] Specifically, the crankshaft 1210 passes through the bearing structure 1220 and the pump body 1100, and the pump body 1100 is movably connected to the crankshaft 1210 and the bearing structure 1220. Specifically, the vibration damping structure 2000 can be arranged at the top end of the crankshaft 1210.

[0066] As Figure 4 shown, the crankshaft 1210 has two opposite ends, and the vibration damping structure 2000 is arranged at least at one end of the crankshaft 1210; and / or, the bearing structure 1220 includes a main bearing 1221 and a sub-bearing 1222, and the vibration damping structure 2000 is arranged at one end of the main bearing 1221 away from the sub-bearing 1222 and / or at one end of the sub-bearing 1222 away from the main bearing 1221. In this way, it is convenient to better arrange the vibration damping structure 2000 at any one or at least one of the movable parts where the vibration is relatively large, so as to better ensure the vibration damping effect and reduce the noise generated by the vibration.

[0067] Specifically, the crankshaft 1210 has an upper end and a lower end. The vibration damping structure 2000 can be arranged at the upper end of the crankshaft 1210, or at the lower end of the crankshaft 1210, or vibration damping structures 2000 can be respectively arranged at the upper end and the lower end of the crankshaft 1210. It can also be arranged on the main bearing 1221 or the auxiliary bearing 1222, or one is arranged on each of the main and auxiliary bearings 1222. The main bearing 1221 is arranged at one end far from the auxiliary bearing 1222, and the auxiliary bearing 1222 is arranged at one end far from the main bearing 1221. One or more of the above positions can be arbitrarily selected to arrange the vibration damping structure 2000, and the setting types can be combined arbitrarily. Specifically, as Figures 5 to 7 shown, at least part of the vibration damping structure 2000 and the moving part 1200 is an integrally formed structure to improve the structural stability; or, at least part of the vibration damping structure 2000 and the moving part 1200 are connected by interference fit for easy connection; or, at least part of the vibration damping structure 2000 and the moving part 1200 are connected by threads for easy connection; or, at least part of the vibration damping structure 2000 and the moving part 1200 are welded for easy connection. Figure 5 The vibration damping structure 2000 in Figure 6 is integrally formed, Figure 7 the vibration damping structure 2000 in

[0068] is connected by interference fit,

[0069] Specifically, as Figure 8 shown, the power function equation is y = a(x - x0) m + y0, x0 ≤ x ≤ x1, where x is the abscissa of any point on the vibration damping curve 2110, y is the ordinate of any point on the vibration damping curve 2110, x0 and x1 are respectively the abscissas of the starting end and the ending end of the vibration damping curve 2110, and y0 is the ordinate of the starting end of the vibration damping curve 2110; where a > 0, m ≥ 2. Figure 8The figure shows a schematic diagram of the vibration damping cross-section 2100 of the vibration damping structure 2000. The vibration damping cross-section 2100 is formed by connecting seven coordinate points in sequence. In the rectangular coordinate system shown in the figure, the coordinates of each point are (0, 0), (0, y0), (x0, y0), (x1, y1), (x2, y1), (x2, 0). Among them, except for the side of the vibration damping curve 2110, the rest are straight lines. The coordinates (x, y) of any point on the vibration damping curve 2110 satisfy the power function y = a(x - x0) m + y0, where x0 ≤ x ≤ x1. The above parameters meet the following requirements: a > 0, m ≥ 2, 0 ≤ x0 < x1 ≤ x2, 0 ≤ y0 < y1; generally, m = 2, x0, y0 > 0, and the specific parameter selection needs to be determined according to the processability and the limitation of the structural dimension space;

[0070] Specifically, the vibration damping structure 2000 is made of a high-damping alloy material, so as to convert the vibration energy into heat energy to achieve a better vibration damping effect.

[0071] As Figure 9 shown, the vibration damping structure 2000 has a relatively arranged large head section 2400 and a small head section 2500. The cross-sectional area of the small head section 2500 is smaller than that of the large head section 2400. A damping layer or coating 2700 is laid at the small head section 2500. Correspondingly Figure 9 in the figure, the large head section 2400 is at the right position, and the small head section 2500 is at the left position. At the outer end of the small head section 2500, on one side of the vibration damping curve 2110, a layer of damping material or coating is laid to further convert the vibration energy into heat energy, so as to achieve a better vibration damping effect. The size of the damping layer or coating 2700 is L1, and L1 < x1.

[0072] Specifically, the damping alloy material can be a ferromagnetic alloy material of the Fe-Cr system, so as to further convert the vibration energy into heat energy to achieve a better vibration damping effect.

[0073] Specifically, the edge of the vibration damping cross-section 2100 includes a straight line segment 2120. The two ends of the straight line segment 2120 are respectively connected to the two ends of the vibration damping curve 2110. The straight line segment 2120 coincides with or is parallel to the predetermined axis. With such a structural arrangement, it is convenient to form a solid vibration damping structure 2000 or a vibration damping structure 2000 with a central hole, so as to obtain vibration damping structures 2000 with different structures according to the actual situation.

[0074] Specifically, the vibration damping cross-section 2100 is enclosed by the straight line segment 2120 and the vibration damping curve 2110. The vibration damping structure 2000 is a rotationally symmetric structure with a central axis. The central axis is the predetermined axis, and the predetermined axis coincides with or is parallelly spaced from the straight line segment 2120. When the predetermined axis is parallelly spaced from the straight line segment 2120, a through hole is formed at the central axis of the vibration damping structure 2000.

[0075] Specifically, the vibration damping section 2100 is formed by sequentially connecting the first end face line, the straight line segment 2120, the second end face line, the connecting line, and the vibration damping curve 2110 end to end, wherein the first end face line and the second end face line are arranged in parallel, and the connecting line is arranged in parallel with the straight line segment 2120.

[0076] Specifically, as Figures 10 to 20 shown, the vibration damping curve 2110 rotates along a predetermined axis to form a vibration damping surface 2300; the vibration damping surface 2300 forms at least a part of the outer peripheral surface of the vibration damping structure 2000; or, the vibration damping structure 2000 is an annular structure, the annular structure is sleeved on at least a part of the moving part 1200, and the vibration damping surface 2300 forms the inner ring surface or the outer ring surface of the annular structure; or, the vibration damping structure 2000 is an annular structure, the annular structure is sleeved on at least a part of the moving part 1200, the vibration damping curve 2110 is at least two segments, at least two segments of the vibration damping curve 2110 are arranged at intervals and rotate along a predetermined axis to form at least two vibration damping surfaces 2300 arranged at intervals, one of the at least two vibration damping surfaces 2300 forms the inner ring surface of the annular structure, and the other of the at least two vibration damping surfaces 2300 forms the outer ring surface of the annular structure. In this way, it is convenient to form different vibration damping structures 2000 and improve the vibration damping effect. Specifically, when the vibration damping surface 2300 forms the inner ring surface, a vibration damping groove space will be surrounded corresponding to the inner ring surface to achieve vibration damping.

[0077] Specifically, as Figure 21 shown, a partition groove 2200 is provided on the vibration damping structure 2000, the partition groove 2200 extends axially to penetrate through the axial two ends of the vibration damping structure 2000, the partition groove 2200 is at least two, and at least two partition grooves 2200 are arranged at intervals along the circumferential direction of the vibration damping structure 2000, and the vibration damping structure 2000 is divided into at least two vibration damping parts connected together. In this way, it is convenient to perform better vibration damping through at least two damping parts respectively, and better reduce vibration through the partition groove 2200.

[0078] Specifically, as Figures 22 to 24 shown, the vibration damping curve 2110 rotates along a predetermined axis to form a vibration damping surface 2300, and a vibration damping structure 2000 is provided at the top of the crankshaft 1210 of the pump body structure 1000; wherein, the vibration damping surface 2300 forms the outer peripheral surface of the vibration damping structure 2000.

[0079] Specifically, along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the vibration damping structure 2000 gradually decreases.

[0080] Alternatively, the vibration damping surface 2300 forms the outer peripheral surface of the vibration damping structure 2000. An installation groove is provided at the top of the crankshaft 1210, and the vibration damping structure 2000 is installed in the installation groove, with the vibration damping surface 2300 located within the installation groove. In this way, it is possible to facilitate avoiding the vibration damping structure 2000 occupying too large a size externally, and further better avoid interference between the vibration damping structure 2000 and other structures.

[0081] Alternatively, the vibration damping structure 2000 is an annular structure, and the annular structure is sleeved on the top of the crankshaft 1210. The vibration damping surface 2300 forms the inner ring surface of the annular structure; along the extension direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the flow cross-section of the inner ring surface gradually increases.

[0082] Alternatively, the vibration damping structure 2000 is an annular structure, and the annular structure is sleeved on the top of the crankshaft 1210. The vibration damping surface 2300 forms the outer ring surface of the annular structure; along the extension direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the vibration damping structure 2000 gradually increases.

[0083] By adopting the above different setting methods of the vibration damping structure 2000, it is convenient to flexibly adjust the shape and structure of the vibration damping structure 2000 adaptively according to specific requirements.

[0084] Specifically, when the vibration damping structure 2000 is an annular structure, the annular structure can be sleeved with an interference fit on the crankshaft 1210 or the bearing structure to improve the setting stability of the vibration damping structure 2000.

[0085] Such as Figure 25As shown, the vibration damping structure 2000 includes a first vibration damping member 2600 and a second vibration damping member 2610 which are connected. The first vibration damping member 2600 is a first rotating portion formed by rotating along a predetermined axis, and the second vibration damping member 2610 is a second rotating portion formed by rotating along the predetermined axis. The vibration damping curve 2110 includes a first curve segment and a second curve segment which are arranged at intervals. The first vibration damping member 2600 is sleeved on the top of the crankshaft 1210 of the pump body structure 1000. The first vibration damping member 2600 is an annular structure. The first curve segment rotates along the predetermined axis to form the outer ring surface of the first vibration damping member 2600. The second vibration damping member 2610 is an annular structure. The second curve segment rotates along the predetermined axis to form the outer ring surface of the second vibration damping member 2610. The outer ring surface of the first vibration damping member 2600 is connected to the inner ring surface of the second vibration damping member 2610. At least a part of the outer ring surface of the first vibration damping member 2600 extends out of the second vibration damping member 2610. The first vibration damping member 2600 and the second vibration damping member 2610 are of a split structure or an integrally formed structure. Among them, along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the first vibration damping member 2600 gradually decreases; and / or, along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the second vibration damping member 2610 gradually increases. In this way, it is possible to effectively damp the top of the crankshaft 1210.

[0086] As Figure 26 shown, the vibration damping structure 2000 is sleeved on the upper part of the bearing structure 1220, and the vibration damping curved surface 2300 forms the outer ring surface of the vibration damping structure 2000; along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the vibration damping structure 2000 gradually increases; among them, the distance from the outer ring surface to the central axis of the crankshaft 1210 is greater than the outer diameter of the rotor 1230 of the pump body structure 1000; or, the vibration damping structure 2000 is sleeved on the lower end of the crankshaft 1210, and the vibration damping curved surface 2300 forms the outer ring surface of the vibration damping structure 2000; along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the vibration damping structure 2000 gradually decreases; among them, the distance from the outer ring surface to the central axis of the crankshaft 1210 is less than the outer diameter of the rotor 1230 of the pump body structure 1000.

[0087] As Figure 26As shown, the vibration damping structure 2000 is sleeved on the upper part of the bearing structure 1220, and a part of the vibration damping surface 2300 forms at least part of the outer ring surface of the vibration damping structure 2000; along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the vibration damping structure 2000 gradually increases; wherein, the distance from the outer ring surface to the central axis of the crankshaft 1210 is greater than the outer diameter of the rotor 1230 of the pump body structure 1000; and / or, another part of the vibration damping surface 2300 and a part of the vibration damping surface 2300 are arranged axially along the crankshaft 1210, another part of the vibration damping surface 2300 protrudes from the upper end of the bearing structure 1220, and another part of the vibration damping surface 2300 is arranged at an interval from the crankshaft and forms at least part of the inner ring surface of the vibration damping structure 2000. In this way, it is convenient to effectively damp the upper part of the bearing structure 1220.

[0088] As Figure 27 As shown, the vibration damping structure 2000 is sleeved on the lower part of the crankshaft 1210, and at least part of the vibration damping surface 2300 forms at least part of the outer ring surface of the vibration damping structure 2000; along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the vibration damping structure 2000 gradually decreases; wherein, the distance from the outer ring surface to the central axis of the crankshaft 1210 is less than the outer diameter of the rotor 1230 of the pump body structure 1000; and / or, another part of the vibration damping surface 2300 and a part of the vibration damping surface 2300 are arranged axially along the crankshaft 1210, another part of the vibration damping surface 2300 protrudes from the lower end of the bearing structure 1220, and another part of the vibration damping surface 2300 forms at least part of the inner ring surface of the vibration damping structure 2000. In this way, it is convenient to effectively damp the lower part of the crankshaft 1210.

[0089] As Figure 28As shown, the vibration damping structure 2000 includes a third vibration damping member 2620 and a fourth vibration damping member 2630 which are connected and arranged. The third vibration damping member 2620 is a third rotating portion formed by rotating along a predetermined axis, and the fourth vibration damping member 2630 is a fourth rotating portion formed by rotating along the predetermined axis. The vibration damping curve 2110 includes a third curve segment and a fourth curve segment which are arranged at intervals. The third vibration damping member 2620 is arranged at the bottom of the bearing structure 1220. The third vibration damping member 2620 is an annular structure. The third curve segment rotates along the predetermined axis to form the inner ring surface of the third vibration damping member 2620. The fourth vibration damping member 2630 is an annular structure and is sleeved at the bottom of the bearing structure 1220. The fourth curve segment rotates along the predetermined axis to form the outer ring surface of the fourth vibration damping member 2630. The outer ring surface of the third vibration damping member 2620 is connected to the inner ring surface of the fourth vibration damping member 2630. At least part of the outer ring surface of the third vibration damping member 2620 extends out of the fourth vibration damping member 2630. The third vibration damping member 2620 and the fourth vibration damping member 2630 are of a split structure or an integrally formed structure; wherein, along the extension direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the third vibration damping member 2620 gradually increases; and / or, along the extension direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the second vibration damping member 2610 gradually decreases. In this way, it is possible to facilitate better effective vibration damping of the bottom of the bearing structure 1220.

[0090] Specifically, the third vibration damping member 2620 and the fourth vibration damping member 2630 can be independent structures and are installed in sequence; or, the third vibration damping member 2620 and the fourth vibration damping member 2630 are of an integrally formed structure.

[0091] Specifically, as Figure 29As shown, the vibration damping structure 2000 includes a fifth vibration damping member 2640, a sixth vibration damping member 2650, and a seventh vibration damping member 2660 which are connected and arranged. The vibration damping curve 2110 includes a fifth curve segment, a sixth curve segment, and a seventh curve segment which are arranged at intervals. The fifth vibration damping member 2640 is a solid structure. The fifth curve segment rotates along a predetermined axis to form the outer peripheral surface of the fifth vibration damping member 2640. The fifth vibration damping member 2640 is arranged at the top of the crankshaft 1210. Both the sixth vibration damping member 2650 and the seventh vibration damping member 2660 are annular structures. The sixth vibration damping member 2650 is sleeved on the fifth vibration damping member 2640. The sixth curve segment rotates along the predetermined axis to form the inner ring surface of the sixth vibration damping member 2650. The seventh vibration damping member 2660 is sleeved on the sixth vibration damping member 2650. The seventh curve segment rotates along the predetermined axis to form the outer ring surface of the seventh vibration damping member 2660. Both the fifth vibration damping member 2640 and the sixth vibration damping member 2650 protrude from the seventh vibration damping member 2660. The fifth vibration damping member 2640, the sixth vibration damping member 2650, and the seventh vibration damping member 2660 are of a split structure or an integrally formed structure. Wherein, along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the fifth vibration damping member 2640 gradually decreases; and / or, along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the flow cross-sectional area of the sixth vibration damping member 2650 gradually increases; and / or, along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the seventh vibration damping member 2660 gradually increases. In this way, it is possible to facilitate better vibration damping of the top of the crankshaft 1210.

[0092] Specifically, the fifth vibration damping member 2640, the sixth vibration damping member 2650, and the seventh vibration damping member 2660 can be independent structures and are installed in sequence; or, the fifth vibration damping member 2640, the sixth vibration damping member 2650, and the seventh vibration damping member 2660 are of an integrally formed structure.

[0093] Specifically, as Figure 30As shown, the vibration damping structure 2000 includes an eighth vibration damping member 2670, a ninth vibration damping member 2680, and a tenth vibration damping member 2690 which are connected and arranged. The vibration damping curve 2110 includes an eighth curve segment, a ninth curve segment, and a tenth curve segment which are arranged at intervals. The eighth vibration damping member 2670, the ninth vibration damping member 2680, and the tenth vibration damping member 2690 are all annular structures. Both the eighth vibration damping member 2670 and the ninth vibration damping member 2680 are arranged at the bottom end of the bearing structure 1220. The eighth curve segment rotates along a predetermined axis to form the inner ring surface of the eighth vibration damping member 2670. The ninth vibration damping member 2680 is sleeved on the eighth vibration damping member 2670. The ninth curve segment rotates along the predetermined axis to form the inner ring surface of the ninth vibration damping member 2680. The tenth vibration damping member 2690 is sleeved on the ninth vibration damping member 2680. The tenth curve segment rotates along the predetermined axis to form the outer ring surface of the tenth vibration damping member 2690. Both the eighth vibration damping member 2670 and the ninth vibration damping member 2680 protrude from the tenth vibration damping member 2690. The eighth vibration damping member 2670, the ninth vibration damping member 2680, and the tenth vibration damping member 2690 are of a split structure or an integrally formed structure. Among them, along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the flow cross-section of the eighth vibration damping member 2670 gradually decreases; and / or, along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the flow passage of the ninth vibration damping member 2680 gradually decreases; and / or, along the extending direction from the bottom of the crankshaft 1210 to the top of the crankshaft 1210, the cross-sectional area of the tenth vibration damping member 2690 gradually decreases. In this way, it is possible to facilitate effective vibration damping of the bottom of the bearing structure 1220, thereby effectively reducing the noise caused by vibration.

[0094] Specifically, the eighth vibration damping member 2670, the ninth vibration damping member 2680, and the tenth vibration damping member 2690 can be independent structures and are installed in sequence; or, the eighth vibration damping member 2670, the ninth vibration damping member 2680, and the tenth vibration damping member 2690 are of an integrally formed structure.

[0095] As Figure 30 shown, in order to better improve the vibration damping effect, three vibration damping structures 2000 are respectively arranged at different positions. Specifically, one vibration damping structure 2000 is arranged at the top of the crankshaft 1210, and this vibration damping structure includes an eighth vibration damping member 2670, a ninth vibration damping member 2680, and a tenth vibration damping member 2690 which are connected and arranged. One vibration damping structure 2000 is arranged at the main bearing 1221. One vibration damping structure 2000 is arranged at the auxiliary bearing 1222, and this vibration damping structure 2000 includes an eighth vibration damping member 2670, a ninth vibration damping member 2680, and a tenth vibration damping member 2690 which are connected and arranged.

[0096] As Figures 31 to 33 shown, the present utility model also provides a compressor, and this compressor includes the pump body assembly in any one of the above embodiments of the utility model.

[0097] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: By arranging the vibration damping structure at the position with a relatively large vibration response of the pump body assembly. The damping structure is a rotationally symmetric structure formed by rotating a special cross-sectional shape, and the cross-sectional shape meets the requirements of the acoustic black hole or non-perfect acoustic black hole structure. According to the principle of the acoustic black hole, when the pump body assembly vibrates, the vibration wave is absorbed by the damping structure, thereby reducing the vibration response of the main structure of the pump body (i.e., the pump body structure except the damping structure), and further reducing the noise of the compressor and the air conditioner.

[0098] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0099] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0100] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal", and "top, bottom" are usually based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0101] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.

[0102] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present application.

[0103] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pump assembly, characterized in that: include: A pump body structure (1000), the pump body structure (1000) comprising a pump body (1100) and a movable component (1200) connected to the pump body (1100); A vibration damping structure (2000), wherein the vibration damping structure (2000) is a rotational structure formed by rotating a vibration damping section (2100) along a predetermined axis, at least a portion of an edge of the vibration damping section (2100) forms a vibration damping curve (2110), and the vibration damping curve (2110) satisfies a power function equation; Wherein, the vibration reduction structure (2000) is arranged on the movable component (1200), and the movable component (1200) includes a crankshaft (1210) and / or a bearing structure (1220).

2. The pump assembly according to claim 1, characterized in that: The crankshaft (1210) has two oppositely disposed ends, and the vibration reduction structure (2000) is disposed at at least one end of the crankshaft (1210); and / or, The bearing structure (1220) comprises a main bearing (1221) and a secondary bearing (1222), and the vibration damping structure (2000) is provided at one end of the main bearing (1221) away from the secondary bearing (1222) and / or at one end of the secondary bearing (1222) away from the main bearing (1221).

3. The pump assembly according to claim 1, characterized in that: The vibration reduction structure (2000) and at least a portion of the movable component (1200) are integrally formed structures; or, The vibration-damping structure (2000) is connected to at least part of the movable component (1200) by interference fit; or, The vibration reduction structure (2000) is connected to at least part of the movable component (1200) via threads; or, The vibration-damping structure (2000) is welded to at least a portion of the movable component (1200).

4. The pump assembly according to claim 1, characterized in that: The power function equation is y=a(x-x0) m +y0, x0≤x≤x1, wherein x is the abscissa of any point on the vibration reduction curve (2110), y is the ordinate of any point on the vibration reduction curve (2110), x0 and x1 are the abscissas of the starting end and the ending end of the vibration reduction curve (2110), respectively, and y0 is the ordinate of the starting end of the vibration reduction curve (2110); Among them, a>0, m≥2.

5. The pump assembly according to claim 1, characterized in that: The vibration reduction structure (2000) is made of a high damping alloy material; and / or, The vibration reduction structure (2000) comprises a large head section (2400) and a small head section (2500) which are arranged relatively to each other, the cross-sectional area of ​​the small head section (2500) is smaller than the cross-sectional area of ​​the large head section (2400), and a damping layer or coating (2700) is applied on the small head section (2500).

6. The pump assembly according to claim 1, characterized in that: The edge of the vibration-damping section (2100) comprises a straight line segment (2120), two ends of the straight line segment (2120) are respectively connected to two ends of the vibration-damping curve (2110), and the straight line segment (2120) coincides with or is arranged in parallel with the predetermined axis.

7. The pump assembly according to claim 1, characterized in that: The vibration reduction curve (2110) is rotated along the predetermined axis to form a vibration reduction curved surface (2300); The vibration-damping curved surface (2300) forms at least a portion of the outer peripheral surface of the vibration-damping structure (2000); or, The vibration-damping structure (2000) is an annular structure, the annular structure is sleeved on at least a portion of the movable component (1200), and the vibration-damping curved surface (2300) forms an inner annular surface or an outer annular surface of the annular structure; or, The vibration-damping structure (2000) is an annular structure, and the annular structure is sleeved on at least a portion of the movable component (1200). The vibration-damping curve (2110) is composed of at least two sections, and at least two sections of the vibration-damping curve (2110) are arranged at intervals and rotate along the predetermined axis to form at least two vibration-damping curved surfaces (2300) arranged at intervals, and at least one of the two vibration-damping curved surfaces (2300) forms an inner annular surface of the annular structure, and the other of the two vibration-damping curved surfaces (2300) forms an outer annular surface of the annular structure.

8. The pump assembly according to claim 1, characterized in that: The vibration damping structure (2000) is provided with a separation groove (2200), the separation groove (2200) extending in the axial direction to penetrate the axial ends of the vibration damping structure (2000), there are at least two separation grooves (2200), and at least two separation grooves (2200) are arranged at intervals along the circumference of the vibration damping structure (2000), and the vibration damping structure (2000) is divided into at least two vibration damping parts that are connected and arranged.

9. The pump assembly according to claim 1, characterized in that: The vibration reduction curve (2110) is rotated along the predetermined axis to form a vibration reduction curved surface (2300), and the vibration reduction structure (2000) is arranged on the top of the crankshaft (1210) of the pump body structure (1000); The vibration-damping curved surface (2300) forms the outer peripheral surface of the vibration-damping structure (2000); along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the cross-sectional area of ​​the vibration-damping structure (2000) gradually decreases; or, The vibration-damping curved surface (2300) forms the outer peripheral surface of the vibration-damping structure (2000), a mounting groove is provided on the top of the crankshaft (1210), the vibration-damping structure (2000) is mounted in the mounting groove, and the vibration-damping curved surface (2300) is located in the mounting groove; or, The vibration-damping structure (2000) is an annular structure, the annular structure is sleeved on the top of the crankshaft (1210), and the vibration-damping curved surface (2300) forms an inner annular surface of the annular structure; along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the flow cross section of the inner annular surface gradually increases; or, The vibration-damping structure (2000) is an annular structure, which is sleeved on the top of the crankshaft (1210), and the vibration-damping curved surface (2300) forms the outer annular surface of the annular structure; along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the cross-sectional area of ​​the vibration-damping structure (2000) gradually increases.

10. The pump assembly according to claim 1, characterized in that: The vibration damping structure (2000) comprises a first vibration damping member (2600) and a second vibration damping member (2610) which are connected and arranged, the first vibration damping member (2600) is a first rotating part formed by rotating along the predetermined axis, the second vibration damping member (2610) is a second rotating part formed by rotating along the predetermined axis, the vibration damping curve (2110) comprises a first curve segment and a second curve segment which are arranged at intervals, the first vibration damping member (2600) is sleeved on the top of the crankshaft (1210) of the pump body structure (1000), the first vibration damping member (2600) is an annular structure, and the first curve segment The first vibration damper (2600) is rotated along the predetermined axis to form an outer annular surface of the second vibration damper (2610), the second vibration damper (2610) is an annular structure, the second curved segment is rotated along the predetermined axis to form an outer annular surface of the second vibration damper (2610), the outer annular surface of the first vibration damper (2600) is connected to the inner annular surface of the second vibration damper (2610), at least part of the outer annular surface of the first vibration damper (2600) is extended out of the second vibration damper (2610), and the first vibration damper (2600) and the second vibration damper (2610) are separate structures or integrally formed structures; Wherein, along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the cross-sectional area of ​​the first vibration damping member (2600) gradually decreases; and / or, Along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the cross-sectional area of ​​the second vibration damping member (2610) gradually increases.

11. The pump assembly according to claim 1, characterized in that: The vibration reduction curve (2110) is rotated along the predetermined axis to form a vibration reduction curved surface (2300); The vibration damping structure (2000) is sleeved on the upper part of the bearing structure (1220), and a portion of the vibration damping curved surface (2300) forms at least a portion of the outer annular surface of the vibration damping structure (2000); along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the cross-sectional area of ​​the vibration damping structure (2000) gradually increases; wherein the distance from the outer annular surface to the central axis of the crankshaft (1210) is greater than the outer diameter of the rotor (1230) of the pump body structure (1000); and / or, Another portion of the vibration-damping curved surface (2300) and a portion of the vibration-damping curved surface (2300) are arranged along the axial direction of the crankshaft (1210), another portion of the vibration-damping curved surface (2300) is arranged to protrude from the upper end of the bearing structure (1220), and another portion of the vibration-damping curved surface (2300) is arranged to be spaced apart from the crankshaft (1210) and forms at least a portion of the inner annular surface of the vibration-damping structure (2000).

12. The pump assembly according to claim 1, characterized in that: The vibration reduction curve (2110) is rotated along the predetermined axis to form a vibration reduction curved surface (2300); The vibration damping structure (2000) is sleeved on the lower part of the crankshaft (1210), and at least a portion of the vibration damping curved surface (2300) forms at least a portion of the outer annular surface of the vibration damping structure (2000); along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the cross-sectional area of ​​the vibration damping structure (2000) gradually decreases; wherein the distance from the outer annular surface to the central axis of the crankshaft (1210) is smaller than the outer diameter of the rotor (1230) of the pump body structure (1000); and / or, Another portion of the vibration-damping curved surface (2300) and a portion of the vibration-damping curved surface (2300) are arranged along the axial direction of the crankshaft (1210), another portion of the vibration-damping curved surface (2300) is arranged to protrude from the lower end of the bearing structure (1220), and another portion of the vibration-damping curved surface (2300) forms at least a portion of the inner annular surface of the vibration-damping structure (2000).

13. The pump assembly according to claim 1, characterized in that The vibration damping structure (2000) comprises a third vibration damping member (2620) and a fourth vibration damping member (2630) which are connected and arranged, the third vibration damping member (2620) is a third rotating part formed by rotating along the predetermined axis, the fourth vibration damping member (2630) is a fourth rotating part formed by rotating along the predetermined axis, the vibration damping curve (2110) comprises a third curve segment and a fourth curve segment which are arranged at intervals, the third vibration damping member (2620) is arranged at the bottom of the bearing structure (1220), the third vibration damping member (2620) is an annular structure, and the third curve segment rotates along the predetermined axis to form the vibration damping curve (2110). The inner ring surface of the third vibration damper (2620), the fourth vibration damper (2630) is an annular structure and is sleeved on the bottom of the bearing structure (1220), the fourth curved segment rotates along the predetermined axis to form the outer ring surface of the fourth vibration damper (2630), the outer ring surface of the third vibration damper (2620) is connected to the inner ring surface of the fourth vibration damper (2630), at least part of the outer ring surface of the third vibration damper (2620) extends out of the fourth vibration damper (2630), and the third vibration damper (2620) and the fourth vibration damper (2630) are split structures or integrally formed structures; Wherein, along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the cross-sectional area of ​​the third vibration damper (2620) gradually increases; and / or, Along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the cross-sectional area of ​​the fourth vibration damper (2630) gradually decreases.

14. The pump assembly according to claim 1, characterized in that The vibration damping structure (2000) comprises a fifth vibration damping member (2640), a sixth vibration damping member (2650) and a seventh vibration damping member (2660) which are connected to each other; the vibration damping curve (2110) comprises a fifth curve segment, a sixth curve segment and a seventh curve segment which are arranged at intervals; the fifth vibration damping member (2640) is a solid structure; the fifth curve segment rotates along the predetermined axis to form an outer peripheral surface of the fifth vibration damping member (2640); the fifth vibration damping member (2640) is arranged at the top of the crankshaft (1210); the sixth vibration damping member (2650) and the seventh vibration damping member (2660) are both annular structures; the sixth vibration damping member (2650) ) is sleeved on the fifth vibration damper (2640), the sixth curve segment rotates along the predetermined axis to form an inner annular surface of the sixth vibration damper (2650), the seventh vibration damper (2660) is sleeved on the sixth vibration damper (2650), the seventh curve segment rotates along the predetermined axis to form an outer annular surface of the seventh vibration damper (2660), the fifth vibration damper (2640) and the sixth vibration damper (2650) are both protruding from the seventh vibration damper (2660), and the fifth vibration damper (2640), the sixth vibration damper (2650) and the seventh vibration damper (2660) are split structures or integrated structures; Wherein, along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the cross-sectional area of ​​the fifth vibration damper (2640) gradually decreases; and / or, Along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the flow cross-sectional area of ​​the sixth vibration damper (2650) gradually increases; and / or, Along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the cross-sectional area of ​​the seventh vibration damper (2660) gradually increases.

15. The pump assembly according to claim 1, characterized in that The vibration damping structure (2000) comprises an eighth vibration damping member (2670), a ninth vibration damping member (2680) and a tenth vibration damping member (2690) which are connected to each other; the vibration damping curve (2110) comprises an eighth curve segment, a ninth curve segment and a tenth curve segment which are arranged at intervals; the eighth vibration damping member (2670), the ninth vibration damping member (2680) and the tenth vibration damping member (2690) are all annular structures; the eighth vibration damping member (2670) and the ninth vibration damping member (2680) are both arranged at the bottom end of the bearing structure (1220); the eighth curve segment rotates along the predetermined axis to form an inner annular surface of the eighth vibration damping member (2670); the ninth vibration damping member (2680) is The eighth vibration damper (2670) is sleeved on the eighth vibration damper (2670), the ninth curve segment rotates along the predetermined axis to form an inner annular surface of the ninth vibration damper (2680), the tenth vibration damper (2690) is sleeved on the ninth vibration damper (2680), the tenth curve segment rotates along the predetermined axis to form an outer annular surface of the tenth vibration damper (2690), the eighth vibration damper (2670) and the ninth vibration damper (2680) are both protruding from the tenth vibration damper (2690), and the eighth vibration damper (2670), the ninth vibration damper (2680) and the tenth vibration damper (2690) are split structures or integrated structures; Wherein, along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the flow cross section of the eighth vibration damper (2670) gradually decreases; and / or, Along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the flow cross-sectional area of ​​the ninth vibration damper (2680) gradually decreases; and / or, Along the extension direction from the bottom of the crankshaft (1210) to the top of the crankshaft (1210), the cross-sectional area of ​​the tenth vibration damper (2690) gradually decreases.

16. A compressor, characterized in that: A pump body assembly comprising any one of claims 1 to 15.

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