Scroll compressor, air conditioner and vehicle

Abstract

The present invention provides a scroll compressor, an air conditioner and a vehicle. The scroll compressor includes: a housing; a crankshaft; a movable and stationary scroll assembly, the movable and stationary scroll assembly is arranged at the first end of the crankshaft, and the crankshaft and the movable and stationary scroll assembly are arranged in the housing; a vibration reduction mechanism, the vibration reduction mechanism is located between the second end of the crankshaft and the housing, the vibration reduction mechanism includes a thrust piece and a buffer oil, the housing has a receiving groove, the thrust piece and the buffer oil are both accommodated in the receiving groove, and the thrust piece is slidably connected to the receiving groove, the thrust piece seals the buffer oil and is close to the second end of the crankshaft relative to the buffer oil, the vibration reduction mechanism has a vibration reduction state and an initial state, when the vibration reduction mechanism is in the initial state, the thrust piece is spaced from the second end of the crankshaft; when the crankshaft moves, the crankshaft moves to one side of the vibration reduction mechanism and squeezes the thrust piece, so that the vibration reduction mechanism switches from the initial state to the vibration reduction state. The present invention solves the problems of high noise and low reliability of scroll compressors in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a scroll compressor, an air conditioner and a vehicle. Background Art

[0002] At present, vehicle compressors are developing towards a trend of being small and lightweight, requiring compressors to have large refrigeration capacity output and small appearance structure. Under large capacity output, the gas force on the compressor shaft system also increases, requiring the shaft system support bearings to have a large load-bearing capacity. The existing compressor shaft system support bearings at both ends are commonly supported by ball bearings. The advantage is that the ball bearings use interference fit between the crankshaft and the inner ring of the bearing, and the shaft system rotates with the inner ring, so that the shaft system cannot move in the axial direction and avoid interference with other parts! However, as the refrigeration capacity of the compressor increases, the bearing capacity of the shaft system bearings increases accordingly. The use of ball bearings also requires increasing the outer diameter, width, and ball diameter to improve the bearing capacity, which will inevitably lead to structural expansion, which is not conducive to the small and compact design of the compressor, and there may even be a problem that the bearing capacity cannot meet the use requirements.

[0003] However, cylindrical roller bearings have a relatively large load-bearing capacity under the same size, and are the best choice for small and large-load compressors. The inner and outer rings of cylindrical roller bearings are separated structures, and the problem of axial positioning of the shaft system needs to be solved. However, vehicle-mounted compressors are generally arranged horizontally, and the shaft system cannot use gravity to limit the thrust structure to make it run closely. As the vehicle travels bumpy, it will cause a large impact on the compressor, causing the horizontally placed shaft system to hit the rear cover or other parts. In addition, the shaft system's own mode will also have an axial excitation effect, causing the impact vibration to be easily transmitted and generate noise, which will cause performance degradation and shorten the service life, and the reliability of the compressor cannot be guaranteed.

[0004] As can be seen from the above, the scroll compressor in the prior art has the problems of high noise and low reliability. Summary of the invention

[0005] The main purpose of the present invention is to provide a scroll compressor, an air conditioner and a vehicle to solve the problems of high noise and low reliability of the scroll compressor in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a scroll compressor is provided, comprising: a casing; a crankshaft; a movable and stationary scroll assembly, the movable and stationary scroll assembly being arranged at a first end of the crankshaft, and the crankshaft and the movable and stationary scroll assembly being arranged in the casing; a vibration damping mechanism, the vibration damping mechanism being arranged in the casing and located between the second end of the crankshaft and the casing, the vibration damping mechanism comprising a thrust piece and a buffer oil, the casing having a receiving groove, the thrust piece and the buffer oil being both received in the receiving groove and the thrust piece being slidably connected to the receiving groove, the thrust piece sealing the buffer oil and being close to the second end of the crankshaft relative to the buffer oil, the vibration damping mechanism having a vibration damping state and an initial state, wherein, when the vibration damping mechanism is in the initial state, the thrust piece is spaced apart from the second end of the crankshaft; when the crankshaft moves, the crankshaft moves to one side of the vibration damping mechanism and applies an extrusion force to the thrust piece, so that the vibration damping mechanism switches from the initial state to the vibration damping state.

[0007] Furthermore, the vibration reduction mechanism also includes a sealing member, which is arranged between the thrust member and the inner wall of the accommodating groove and is used for sealing the buffer oil.

[0008] Furthermore, the shell includes end covers and exhaust covers located at both ends of the shell, and the vibration reduction mechanism is arranged in the end covers. The scroll compressor also includes an oil delivery channel, which is respectively connected to the inner cavity of the exhaust cover and the receiving groove to transport the buffer oil in the inner cavity of the exhaust cover to the receiving groove.

[0009] Furthermore, the scroll compressor also includes a shaft end bearing, an outer ring of the shaft end bearing is connected to the end cover, and an inner ring of the shaft end bearing is connected to the second end of the crankshaft.

[0010] Furthermore, the inner surface of the end cover has a positioning ring extending toward the crankshaft, and the outer ring of the shaft end bearing is connected to the inner ring surface of the positioning ring.

[0011] Furthermore, the crankshaft has a central channel, one end of the central channel is connected to the inner cavity of the exhaust cover, and the other end of the central channel is connected to the end surface of the second end of the crankshaft.

[0012] Furthermore, the central channel serves as at least a part of the oil delivery channel. A one-way valve is provided at the second end of the crankshaft. The one-way valve is spaced apart from the thrust member. The thrust member has a through hole so that the buffer oil can enter the receiving groove through the through hole.

[0013] Furthermore, the oil delivery channel includes a first communicating pipe section communicating with the containing groove and a second communicating pipe section communicating with the inner cavity of the exhaust cover.

[0014] Furthermore, the oil delivery channel also includes a capillary flow pipe section connecting the first connecting pipe section and the second connecting pipe section.

[0015] Furthermore, the scroll compressor also includes a connecting pipe and a plug. The connecting pipe is arranged on the end cover and one end of the connecting pipe is connected to the receiving groove. After the buffer oil is injected into the receiving groove through the connecting pipe, the plug seals the other end of the connecting pipe.

[0016] Further, the other end of the connecting pipe is located outside the shell; or the other end of the connecting pipe is located inside the shell.

[0017] Furthermore, the scroll compressor also includes a one-way valve, which is arranged on the oil delivery channel to allow the buffer oil in the inner cavity of the exhaust cover to flow to one side of the containing groove.

[0018] Furthermore, the oil delivery channel has a throttling capillary section.

[0019] Furthermore, the scroll compressor further comprises a sealing ring and a cover plate, which are sequentially arranged in the positioning ring in a direction away from the shaft end bearing to seal the shaft end bearing.

[0020] Furthermore, a limiting member is provided on the groove wall of the accommodating groove, and the limiting member limits the thrust member in the accommodating groove.

[0021] Furthermore, the scroll compressor further comprises a friction reducing structure, which is arranged on the end surface of the second end of the crankshaft or on the end surface of the thrust piece facing the crankshaft.

[0022] Furthermore, the friction reducing structure includes a ball structure.

[0023] Furthermore, the ball structure is a plane ball bearing; or the ball structure includes a ball fixing member and a plurality of ball bearings, and the plurality of ball bearings are arranged on the ball fixing member at intervals.

[0024] According to another aspect of the present invention, there is provided an air conditioner comprising the scroll compressor described above.

[0025] According to another aspect of the present invention, a vehicle is provided, comprising the above-mentioned air conditioner.

[0026] According to the technical solution of the present invention, the scroll compressor includes a casing, a crankshaft, a movable and stationary scroll assembly and a vibration damping mechanism. The movable and stationary scroll assembly is arranged at a first end of the crankshaft, and the crankshaft and the movable and stationary scroll assembly are arranged in the casing. The vibration damping mechanism is arranged in the casing and is located between the second end of the crankshaft and the casing. The vibration damping mechanism includes a thrust piece and a buffer oil. The casing has a receiving groove. The thrust piece and the buffer oil are both received in the receiving groove and the thrust piece is slidably connected to the receiving groove. The thrust piece seals the buffer oil and is close to the second end of the crankshaft relative to the buffer oil. The vibration damping mechanism has a vibration damping state and an initial state. When the vibration damping mechanism is in In the initial state, the thrust piece is spaced apart from the second end of the crankshaft. When the crankshaft moves, the crankshaft moves toward one side of the vibration damping mechanism and applies an extrusion force to the thrust piece, so that the vibration damping mechanism switches from the initial state to the vibration damping state. The compressibility of the buffer oil is small. When the vibration damping mechanism is in the vibration damping state, it has a vibration damping effect on the movement of the crankshaft, thereby preventing the crankshaft movement from causing a greater impact on the compressor, effectively reducing vibration transmission and noise, thereby avoiding performance degradation and shortened life caused by poor operation of the compressor, ensuring the reliability of the compressor, and solving the problems of high noise and low reliability of the scroll compressor in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 A schematic structural diagram of a scroll compressor in a first embodiment of the present invention is shown;

[0029] Figure 2 A partial enlarged view of the A portion when the vibration reduction mechanism in the first embodiment of the present invention is in the initial state is shown;

[0030] Figure 3 A partial enlarged view of point A when the vibration reduction mechanism in the first embodiment of the present invention is in a vibration reduction state is shown;

[0031] Figure 4 A schematic structural diagram of an angle of the vibration reduction mechanism in the first embodiment of the present invention is shown;

[0032] Figure 5 A partial enlarged view of point A in the second embodiment of the present invention is shown;

[0033] Figure 6 The structure diagram of the scroll compressor in the third embodiment of the present invention is shown;

[0034] Figure 7 A schematic structural diagram of a scroll compressor in a fourth embodiment of the present invention is shown;

[0035] Figure 8 The structure schematic diagram of the scroll compressor in the fifth embodiment of the present invention is shown;

[0036] Fig. 9 The structure diagram of the scroll compressor in the sixth embodiment of the present invention is shown;

[0037] Fig.10 A schematic structural diagram of a scroll compressor in Embodiment 7 of the present invention is shown.

[0038] The above drawings include the following reference numerals:

[0039] 10. Shell; 11. End cover; 111. Receiving groove; 112. Positioning ring; 12. Exhaust cover; 20. Crankshaft; 21. Center channel; 30. Moving and static scroll assembly; 40. Vibration reduction mechanism; 41. Thrust member; 42. Buffer oil; 50. Seal; 60. Oil delivery channel; 61. First connecting pipe section; 62. Second connecting pipe section; 63. Throttling capillary section; 70. Shaft end bearing; 80. Connecting pipe; 90. Plug; 100. One-way valve; 110. Sealing ring; 120. Cover plate; 130. Limiting member; 140. Friction reduction structure. DETAILED DESCRIPTION

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0042] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0043] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0044] In order to solve the problems of high noise and low reliability of scroll compressors in the prior art, the present invention provides a scroll compressor, an air conditioner and a vehicle. The air conditioner described below includes the scroll compressor described below. The vehicle described below includes the air conditioner described below.

[0045] Embodiment 1

[0046] like Figures 1 to 4 As shown, the scroll compressor includes a housing 10, a crankshaft 20, a movable and fixed scroll assembly 30, and a vibration reduction mechanism 40. The movable and fixed scroll assembly 30 is arranged at the first end of the crankshaft 20, and the crankshaft 20 and the movable and fixed scroll assembly 30 are arranged in the housing 10. The vibration reduction mechanism 40 is arranged in the housing 10 and is located between the second end of the crankshaft 20 and the housing 10. The vibration reduction mechanism 40 includes a thrust member 41 and a buffer oil 42, and the housing 10 has a receiving groove 111. The thrust member 41 and the buffer oil 42 are both accommodated in the receiving groove 111, and the thrust member 41 is slidably connected to the receiving groove 111. The thrust member 41 seals the buffer oil 42 and is close to the second end of the crankshaft 20 relative to the buffer oil 42. The vibration reduction mechanism 40 has a vibration reduction state and an initial state. Among them, when the vibration reduction mechanism 40 is in the initial state, the thrust member 41 is spaced apart from the second end of the crankshaft 20. When the crankshaft 20 moves, the crankshaft 20 moves toward one side of the vibration reduction mechanism 40 and applies a pressing force to the thrust piece 41, so that the vibration reduction mechanism 40 switches from the initial state to the vibration reduction state.

[0047] The scroll compressor includes a housing 10, a crankshaft 20, a movable and stationary scroll assembly 30, and a vibration reduction mechanism 40. The movable and stationary scroll assembly 30 is arranged at a first end of the crankshaft 20, and the crankshaft 20 and the movable and stationary scroll assembly 30 are arranged in the housing 10. The vibration reduction mechanism 40 is arranged in the housing 10 and is located between the second end of the crankshaft 20 and the housing 10. The vibration reduction mechanism 40 includes a thrust piece 41 and a buffer oil 42. The housing 10 has a receiving groove 111. The thrust piece 41 and the buffer oil 42 are both accommodated in the receiving groove 111 and the thrust piece 41 is slidably connected to the receiving groove 111. The thrust piece 41 seals the buffer oil 42 and is close to the second end of the crankshaft 20 relative to the buffer oil 42. The vibration reduction mechanism 40 has a vibration reduction state and an initial state. When the vibration reduction mechanism 40 is in the initial state, the thrust piece 41 is spaced apart from the second end of the crankshaft 20. When the crankshaft 20 moves, the crankshaft 20 moves toward one side of the vibration reduction mechanism 40 and applies an extrusion force to the thrust piece 41, so that the vibration reduction mechanism 40 switches from the initial state to the vibration reduction state. The compressibility of the buffer oil 42 is small. When the vibration reduction mechanism 40 is in the vibration reduction state, it has a vibration reduction effect on the movement of the crankshaft 20, thereby avoiding a greater impact on the compressor caused by the movement of the crankshaft 20, effectively reducing vibration transmission and noise, thereby avoiding performance degradation and shortened service life caused by poor operation of the compressor, and ensuring the reliability of the compressor.

[0048] like Figures 2 to 3As shown, the vibration reduction mechanism 40 further includes a seal 50. The seal 50 is disposed between the thrust member 41 and the inner wall of the receiving groove 111, and is used to seal the buffer oil 42. In this embodiment, after the oil and gas are separated at the exhaust cover 12, the separated oil enters the inner cavity of the exhaust cover 12 to form the buffer oil 42. The buffer oil 42 in the exhaust cover 12 has a relatively high pressure, and still has a certain pressure after entering the receiving groove 111 through the oil delivery channel 60. By providing the seal 50, the buffer oil 42 is prevented from leaking from the receiving groove 111.

[0049] like Figures 2 to 4 As shown, a limiting member 130 is further provided on the groove wall of the receiving groove 111. The limiting member 130 limits the thrust member 41 in the receiving groove 111.

[0050] like Figure 1 As shown, the housing 10 includes an end cover 11 and an exhaust cover 12 located at both ends of the housing 10. The vibration reduction mechanism 40 is arranged in the end cover 11. The scroll compressor also includes an oil delivery channel 60, which is connected to the inner cavity of the exhaust cover 12 and the receiving groove 111 respectively, so that the buffer oil 42 in the inner cavity of the exhaust cover 12 is transported to the receiving groove 111. Specifically, the oil delivery channel 60 is arranged in the housing 10. The oil delivery channel 60 is arranged inside the housing 10, which can reasonably utilize the space of the compressor.

[0051] like Figures 1 to 3 As shown, the scroll compressor further includes a shaft end bearing 70. The outer ring of the shaft end bearing 70 is connected to the end cover 11, and the inner ring of the shaft end bearing 70 is connected to the second end of the crankshaft 20. Specifically, the inner ring of the shaft end bearing 70 and the second end of the crankshaft 20 are clearance-fitted and roll-rotate.

[0052] In the present embodiment, the shaft end bearing 70 is a ball bearing. The scroll compressor also includes a bracket bearing, and the inner ring of the bracket bearing is interference fit with the first end of the crankshaft 20. The bracket bearing is a cylindrical roller bearing. Cylindrical roller bearings have a greater load-bearing capacity at the same size, thereby improving the load-bearing capacity of the bracket bearing. Of course, it is precisely because the bracket bearing is set as a cylindrical roller bearing, and the inner and outer rings of the cylindrical roller bearing are a separate structure, and it is necessary to solve the positioning problem of the shaft system in the axial direction, that a vibration reduction mechanism 40 is set on the scroll compressor in the present embodiment to solve the problem of the movement of the crankshaft 20. Specifically, the inner ring of the bracket bearing has a flange at one end away from the second end of the crankshaft 20, and the flange can be thrust on the roller of the bracket bearing to prevent the crankshaft 20 from moving in the direction of the first end of the crankshaft 20.

[0053] In an optional embodiment, the inner ring of the bracket bearing does not have a flange. In this way, the first end of the crankshaft 20 also needs to be provided with a vibration reduction mechanism 40. Both ends of the crankshaft 20 have a vibration reduction mechanism 40, so that when the crankshaft 20 moves in either direction, it can play a vibration reduction role, avoid the crankshaft 20 from moving and causing a large impact on the compressor, effectively reduce vibration transmission, reduce noise, thereby avoiding performance degradation and shortened life caused by poor operation of the compressor, and ensuring the reliability of the compressor.

[0054] like Figures 1 to 3 As shown, the inner surface of the end cover 11 has a positioning ring 112 extending toward the crankshaft 20. The outer ring of the shaft end bearing 70 is connected to the inner ring surface of the positioning ring 112. Specifically, the outer ring of the shaft end bearing 70 and the positioning ring 112 are interference fit.

[0055] In this embodiment, the second end of the crankshaft 20 has a shoulder. When the buffer oil 42 reaches the maximum compression amount, there is still a certain gap between the shoulder of the crankshaft 20 and the end surface of the shaft end bearing 70, and the shoulder of the crankshaft 20 does not contact and rub against the end surface of the shaft end bearing 70. This can prevent the power loss of the compressor caused by friction and ensure the performance of the compressor.

[0056] like Figure 1 As shown, the scroll compressor further includes a one-way valve 100. The one-way valve 100 is disposed on the oil delivery channel 60 so that the buffer oil 42 in the inner cavity of the exhaust cover 12 flows toward the side of the receiving groove 111. By providing the one-way valve 100, the buffer oil 42 in the receiving groove 111 is prevented from flowing back into the inner cavity of the exhaust cover 12, thereby ensuring the vibration reduction effect of the vibration reduction mechanism 40.

[0057] Embodiment 2

[0058] The difference from the first embodiment is that the scroll compressor further includes a friction reducing structure 140 .

[0059] like Figure 5 As shown, the friction-reducing structure 140 is arranged on the end face of the second end of the crankshaft 20. By arranging the friction-reducing structure 140, when the crankshaft 20 moves, the end face of the second end of the crankshaft 20 abuts against the end face of the thrust piece 41, which can reduce friction, reduce power consumption, and thus reduce power loss of the compressor. Of course, the friction-reducing structure 140 can also be arranged on the end face of the thrust piece 41 facing the crankshaft 20, which can be selected according to actual needs.

[0060] In this embodiment, the friction reduction structure 140 includes a ball structure. Specifically, the ball structure is a plane ball bearing. By providing the ball structure, when the crankshaft 20 moves and the end face of the second end of the crankshaft 20 abuts against the end face of the thrust piece 41, rolling friction occurs between the crankshaft 20 and the thrust piece 41, which can greatly reduce friction and power consumption, thereby reducing the power loss of the compressor. Of course, the ball structure may also include a ball fixing member and a plurality of ball bearings, and the plurality of ball bearings may be spaced apart on the ball fixing member, which may be selected according to actual needs.

[0061] Embodiment 3

[0062] The difference from the first embodiment is that the oil delivery channel 60 has a throttling capillary section 63 .

[0063] like Figure 6 As shown, the buffer oil 42 in the inner cavity of the exhaust cover 12 flows through the throttling capillary section 63 and then throttles and reduces the pressure, forming the buffer oil 42 at the intermediate pressure and draining it into the receiving groove 111. In this way, the pressure difference between the suction low-pressure side of the compressor can be reduced, thereby reducing the high requirements of the seal 50 due to the large pressure difference.

[0064] Embodiment 4

[0065] The difference from the first embodiment is that the arrangement of the oil delivery channel 60 is different from that of the first embodiment.

[0066] like Figure 7 As shown, the crankshaft 20 has a central passage 21 . One end of the central passage 21 is connected to the inner cavity of the exhaust cover 12 , and the other end of the central passage 21 is connected to the end surface of the second end of the crankshaft 20 .

[0067] In this embodiment, the central channel 21 serves as at least a part of the oil delivery channel 60. The central channel 21 is provided with a one-way valve 100 at the second end of the crankshaft 20. The one-way valve 100 is spaced apart from the thrust member 41. The thrust member 41 has a through hole so that the buffer oil 42 can enter the receiving groove 111 through the through hole. By providing the central channel 21 and serving as at least a part of the oil delivery channel 60, the buffer oil 42 can be transported from the inner cavity of the exhaust cover 12 to the receiving groove 111, and the buffer oil 42 can be drained to the shaft end bearing 70 to lubricate the shaft end bearing 70, thereby improving the reliability of the shaft end bearing 70.

[0068] like Figure 7 As shown, the scroll compressor further includes a sealing ring 110 and a cover plate 120. The sealing ring 110 and the cover plate 120 are sequentially arranged in the positioning ring 112 in a direction away from the shaft end bearing 70 to seal the shaft end bearing 70. This prevents the buffer oil 42 from leaking from the shaft end bearing 70.

[0069] Embodiment 5

[0070] The difference from the fourth embodiment is that the arrangement of the oil delivery channel 60 is different from that of the fourth embodiment.

[0071] like Figure 8 As shown, the oil delivery channel 60 includes a first connecting pipe section 61 connected to the receiving groove 111 and a second connecting pipe section 62 connected to the inner cavity of the exhaust cover 12. Specifically, one end of the first connecting pipe section 61 is connected to the receiving groove 111, and the other end extends out of the housing 10. One end of the second connecting pipe section 62 is connected to the inner cavity of the exhaust cover 12, and the other end extends out of the housing 10.

[0072] In this embodiment, the oil delivery channel 60 further includes a capillary flow pipe section connecting the first connecting pipe section 61 and the second connecting pipe section 62. By arranging the oil delivery channel 60 outside the housing 10, the structural components inside the compressor can be simplified, avoiding the limitation of the internal structure setting space.

[0073] Embodiment 6

[0074] The difference from the fourth embodiment is that the way of providing the buffer oil 42 is different from that of the fourth embodiment.

[0075] like Fig. 9 As shown, the scroll compressor further includes a connecting pipe 80 and a plug 90. The connecting pipe 80 is disposed on the end cover 11 and one end of the connecting pipe 80 is connected to the receiving groove 111. After the buffer oil 42 is injected into the receiving groove 111 through the connecting pipe 80, the plug 90 seals the other end of the connecting pipe 80. In this way, the buffer oil 42 can be directly injected into the receiving groove 111, which is simple and convenient.

[0076] In this embodiment, the other end of the connecting pipe 80 is located outside the housing 10 .

[0077] Embodiment 7

[0078] The difference from the sixth embodiment is that the arrangement of the connecting pipe 80 is different from that of the sixth embodiment.

[0079] like Fig.10 As shown, the other end of the connecting pipe 80 is located inside the housing 10 .

[0080] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: the scroll compressor includes a housing 10, a crankshaft 20, a movable and static scroll assembly 30 and a vibration reduction mechanism 40, the movable and static scroll assembly 30 is arranged at the first end of the crankshaft 20, and the crankshaft 20 and the movable and static scroll assembly 30 are arranged in the housing 10, the vibration reduction mechanism 40 is arranged in the housing 10 and is located between the second end of the crankshaft 20 and the housing 10, the vibration reduction mechanism 40 includes a thrust member 41 and a buffer oil 42, the housing 10 has a receiving groove 111, the thrust member 41 and the buffer oil 42 are both accommodated in the receiving groove 111 and the thrust member 41 is slidably connected to the receiving groove 111, the thrust member 41 seals the buffer oil 42 and is relative to The buffer oil 42 is close to the second end of the crankshaft 20. The vibration damping mechanism 40 has a vibration damping state and an initial state. When the vibration damping mechanism 40 is in the initial state, the thrust piece 41 is spaced apart from the second end of the crankshaft 20. When the crankshaft 20 moves, the crankshaft 20 moves toward one side of the vibration damping mechanism 40 and applies an extrusion force to the thrust piece 41, so that the vibration damping mechanism 40 switches from the initial state to the vibration damping state. The buffer oil 42 has low compressibility. When the vibration damping mechanism 40 is in the vibration damping state, it has a vibration damping effect on the movement of the crankshaft 20, thereby preventing the movement of the crankshaft 20 from causing a greater impact on the compressor, effectively reducing vibration transmission and reducing noise, thereby avoiding performance degradation and shortened life caused by poor operation of the compressor, and ensuring the reliability of the compressor.

[0081] 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, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0082] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A scroll compressor, characterized in that: include: Housing (10); Crankshaft (20); A movable and stationary scroll assembly (30), wherein the movable and stationary scroll assembly (30) is arranged at a first end of the crankshaft (20), and the crankshaft (20) and the movable and stationary scroll assembly (30) are arranged in the housing (10); A vibration damping mechanism (40), the vibration damping mechanism (40) is arranged in the housing (10) and is located between the second end of the crankshaft (20) and the housing (10), the vibration damping mechanism (40) comprises a thrust piece (41) and a buffer oil (42), the housing (10) has a receiving groove (111), the thrust piece (41) and the buffer oil (42) are both received in the receiving groove (111), and the thrust piece (41) is slidably connected to the receiving groove (111), the thrust piece (41) seals the buffer oil (42) and is close to the second end of the crankshaft (20) relative to the buffer oil (42), the vibration damping mechanism (40) has a vibration damping state and an initial state, wherein: When the vibration reduction mechanism (40) is in the initial state, the thrust member (41) is spaced apart from the second end of the crankshaft (20); When the crankshaft (20) moves, the crankshaft (20) moves toward one side of the vibration damping mechanism (40) and applies a squeezing force to the thrust piece (41), so that the vibration damping mechanism (40) switches from the initial state to the vibration damping state.

2. The scroll compressor according to claim 1, characterized in that: The vibration reduction mechanism (40) further comprises a sealing member (50), wherein the sealing member (50) is arranged between the thrust member (41) and the inner wall of the containing groove (111) and is used for sealing the buffer oil (42).

3. The scroll compressor according to claim 1, characterized in that: The housing (10) comprises an end cover (11) and an exhaust cover (12) located at both ends of the housing (10); the vibration damping mechanism (40) is arranged in the end cover (11); the scroll compressor further comprises an oil delivery channel (60); the oil delivery channel (60) is respectively connected to the inner cavity of the exhaust cover (12) and the receiving groove (111), so that the buffer oil (42) in the inner cavity of the exhaust cover (12) is delivered to the receiving groove (111).

4. The scroll compressor according to claim 3, characterized in that: The scroll compressor further comprises a shaft end bearing (70), the outer ring of the shaft end bearing (70) being connected to the end cover (11), and the inner ring of the shaft end bearing (70) being connected to the second end of the crankshaft (20).

5. The scroll compressor according to claim 4, characterized in that: The inner surface of the end cover (11) has a positioning ring (112) extending toward the crankshaft (20), and the outer ring of the shaft end bearing (70) is connected to the inner ring surface of the positioning ring (112).

6. The scroll compressor according to claim 5, characterized in that: The crankshaft (20) has a central channel (21), one end of the central channel (21) is connected to the inner cavity of the exhaust cover (12), and the other end of the central channel (21) is connected to the end surface of the second end of the crankshaft (20).

7. The scroll compressor according to claim 6, characterized in that: The central channel (21) serves as at least a part of the oil delivery channel (60). The central channel (21) is provided with a one-way valve (100) at the second end of the crankshaft (20). The one-way valve (100) is spaced apart from the thrust member (41). The thrust member (41) has a through hole so that the buffer oil (42) can enter the containing groove (111) through the through hole.

8. The scroll compressor according to claim 6, characterized in that: The oil delivery channel (60) comprises a first communicating pipe section (61) communicating with the containing groove (111) and a second communicating pipe section (62) communicating with the inner cavity of the exhaust cover (12).

9. The scroll compressor according to claim 8, characterized in that: The oil delivery channel (60) further comprises a capillary flow pipe section connecting the first connecting pipe section (61) and the second connecting pipe section (62).

10. The scroll compressor according to claim 6, characterized in that: The scroll compressor further comprises a connecting pipe (80) and a plug (90); the connecting pipe (80) is arranged on the end cover (11) and one end of the connecting pipe (80) is connected to the receiving groove (111); after the buffer oil (42) is injected into the receiving groove (111) through the connecting pipe (80), the plug (90) seals the other end of the connecting pipe (80).

11. The scroll compressor according to claim 10, characterized in that: The other end of the connecting pipe (80) is located outside the shell (10); or The other end of the connecting pipe (80) is located inside the shell (10).

12. The scroll compressor according to claim 3, characterized in that: The scroll compressor further comprises a one-way valve (100), wherein the one-way valve (100) is arranged on the oil delivery channel (60) so as to allow the buffer oil (42) in the inner cavity of the exhaust cover (12) to flow toward one side of the containing groove (111).

13. The scroll compressor according to claim 3, characterized in that: The oil delivery channel (60) has a throttling capillary section (63).

14. The scroll compressor according to claim 5, characterized in that: The scroll compressor further comprises a sealing ring (110) and a cover plate (120), wherein the sealing ring (110) and the cover plate (120) are sequentially arranged in the positioning ring (112) in a direction away from the shaft end bearing (70) to seal the shaft end bearing (70).

15. The scroll compressor according to claim 1, characterized in that: A limiting member (130) is also provided on the groove wall of the accommodating groove (111), and the limiting member (130) limits the thrust member (41) in the accommodating groove (111).

16. The scroll compressor according to claim 1, characterized in that: The scroll compressor further comprises a friction reducing structure (140), wherein the friction reducing structure (140) is arranged on the end surface of the second end of the crankshaft (20) or on the end surface of the thrust member (41) facing the crankshaft (20).

17. The scroll compressor according to claim 16, characterized in that: The friction reducing structure (140) comprises a ball structure.

18. The scroll compressor according to claim 17, characterized in that: The ball structure is a plane ball bearing; or The ball structure includes a ball fixing part and a plurality of ball bearings, and the plurality of ball bearings are arranged on the ball fixing part at intervals.

19. An air conditioner, characterized in that: The scroll compressor comprises the scroll compressor according to any one of claims 1 to 18.

20. A vehicle, characterized in that: Including the air conditioner as claimed in claim 19.

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