compressor

Abstract

The present invention provides a compressor, comprising: a housing having an oil storage chamber at the bottom; a crankshaft, a lower flange located at the bottom of the crankshaft, one end of the crankshaft being rotatably connected to the lower flange; an oil suction pipe, one end of which is located in the oil storage chamber and the other end of which is passed through the lower flange; an oil guide plate having a first end and a second end relatively arranged, the first end of the oil guide plate being arranged close to the oil storage chamber, the second end of the oil guide plate being passed through the crankshaft, the oil guide plate having a first position and a second position arranged relative to the oil suction pipe, the second end of the oil guide plate being located in the crankshaft when the oil guide plate is in the first position or the second position, the first end of the oil guide plate being located in the crankshaft, the height of the first end of the oil guide plate in the first position being higher than the height in the second position; a driving mechanism arranged in the housing, the driving mechanism being capable of driving the oil guide plate to move from the first position to the second position. The technical solution provided by the present application can solve the problem in the prior art that the compressor is prone to insufficient oil lubrication when it is in heavy working conditions.

Description

Technical Field

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

[0002] A compressor is a refrigerant pump that pumps low-pressure gas to high-pressure gas. To ensure smooth operation, the oil level in the compressor must be sufficient. This ensures adequate lubrication of all relevant parts within the pump, reducing wear and tear between components and ensuring compressor reliability.

[0003] At present, the commonly used compressor oil suction structure includes a crankshaft, an oil guide plate and an oil suction pipe. The oil guide plate and the oil suction pipe are arranged at the tail of the crankshaft. One end of the oil guide plate is arranged in the oil suction pipe, and the other end of the oil guide plate is passed through the crankshaft. The oil guide plate and the oil suction pipe are tightly matched. The oil guide plate serves as a bridge connecting the oil suction pipe and the crankshaft to transport oil to the internal oil channel of the crankshaft.

[0004] However, in the existing technology, the oil suction efficiency of the compressor will not change when the speed remains unchanged. However, when the ratio of the exhaust pressure to the suction pressure in the compressor is large, the compressor is under heavy working conditions, and its internal structure will usually wear out due to insufficient oil lubrication, which will reduce the reliability of the compressor and even cause the compressor to fail to start normally. Summary of the Invention

[0005] The present invention provides a compressor to solve the problem in the prior art that insufficient oil lubrication easily occurs inside the compressor when the compressor is in a heavy working condition.

[0006] The present invention provides a compressor, the compressor comprising: a shell, the bottom of the shell having an oil storage chamber; a crankshaft rotatably arranged in the shell, a lower flange arranged in the shell, the lower flange being located at the bottom of the crankshaft, and one end of the crankshaft being rotatably connected to the lower flange; an oil suction pipe, one end of the oil suction pipe being located in the oil storage chamber, and the other end of the oil suction pipe being passed through the lower flange; an oil guide plate movably arranged in the oil suction pipe, the oil guide plate having a first end and a second end which are relatively arranged, the first end of the oil guide plate being arranged close to the oil storage chamber, the second end of the oil guide plate being passed through the crankshaft, the oil guide plate having a first position and a second position which are set relative to the oil suction pipe, when the oil guide plate is in the first position or the second position, the second end of the oil guide plate is located in the crankshaft, and the height of the first end of the oil guide plate in the first position is higher than that in the second position; a driving mechanism arranged in the shell, the driving mechanism being drivingly connected to the oil guide plate, and the driving mechanism being capable of driving the oil guide plate to move from the first position to the second position.

[0007] Furthermore, the driving mechanism is arranged in the lower flange, and the driving mechanism has a relatively set initial state and driving state. When the suction and discharge pressure ratio of the compressor is greater than the preset value, the driving mechanism is in the driving state, and the driving mechanism drives the oil guide plate to move to the second position; when the suction and discharge pressure ratio of the compressor is less than the preset value, the oil guide plate is in the first position.

[0008] Furthermore, the compressor also includes a cylinder, the cylinder has a compression chamber, the crankshaft is arranged in the compression chamber, the lower flange has an exhaust channel, one end of the exhaust channel is connected to the compression chamber, and the other end of the exhaust channel is connected to the interior of the shell, the driving mechanism includes a pressure moving part, the pressure moving part is movably arranged in the exhaust channel, the pressure moving part is driven and connected to the oil guide plate, and the pressure moving part drives the oil guide plate to move to the second position through the exhaust pressure in the exhaust channel.

[0009] Furthermore, the lower flange has an oil guide hole arranged axially therethrough, the oil guide hole includes a first hole section and a second hole section connected in sequence, the first hole section is arranged away from the crankshaft, the oil suction pipe is connected to the first hole section, the second end of the oil guide plate passes through the oil suction pipe and the second hole section and is located in the crankshaft, the exhaust channel includes an air inlet hole and a first exhaust hole, the air inlet hole is arranged on the side wall of the lower flange, one end of the air inlet hole is connected to the second hole section, the other end of the air inlet hole is connected to the compression chamber, one end of the first exhaust hole is connected to the second hole section, the other end of the first exhaust hole passes through the lower flange, and the pressure moving part is movably arranged in the air inlet hole.

[0010] Furthermore, the driving mechanism also includes: a transverse plate, arranged on the side wall of the oil guide plate; an elastic member, located between the pressure moving member and the transverse plate, the elastic member having an initial state and a deformed state, and the pressure moving member having a relatively set initial position and a driving position, wherein, when the pressure moving member is in the initial position, the elastic member is in the initial state; when the pressure moving member is driven by the exhaust pressure to move from the initial position toward the driving position, the pressure moving member drives the elastic member to change from the initial state to the deformed state, and the elastic member abuts and cooperates with the transverse plate to drive the oil guide plate to move from the first position to the second position.

[0011] Furthermore, there is a gap between the side wall of the pressure-moving member and the air inlet hole. At the initial position, there is a first flow channel between the end of the pressure-moving member away from the elastic member and the air inlet hole. At the driving position, there is a second flow channel between the end of the pressure-moving member away from the elastic member and the air inlet hole. The flow area of ​​the first flow channel is smaller than the flow area of ​​the second flow channel.

[0012] Furthermore, the transverse plate extends in the radial direction of the oil guide plate, and the elastic part includes a connecting section and a bending section that are connected to each other. The connecting section is fixedly connected to the lower flange, and the connecting section is located below the pressure moving part. The bending section extends along the axis of the oil guide plate toward the direction close to the oil guide plate.

[0013] Furthermore, a plurality of air inlet holes are provided on the lower flange, and the plurality of air inlet holes are spaced apart along the axial direction of the oil guide plate. A pressure moving part and an elastic part are provided in each air inlet hole. A plurality of cross plates are provided on the oil guide plate, and the cross plates and the elastic parts are provided in one-to-one correspondence. The exhaust pressure that drives the pressure moving part to move toward the driving position gradually increases from top to bottom. Between two adjacent pressure moving parts, when the upper elastic part abuts against the corresponding cross plate and is in a deformed state, the lower cross plate moves to a position matching the initial state of the corresponding elastic part.

[0014] Furthermore, a plurality of air inlet holes are provided on the lower flange, and the plurality of air inlet holes are distributed in annular intervals along the circumference of the oil guide plate. A pressure moving part and an elastic part are provided in each air inlet hole. A plurality of transverse plates are provided on the oil guide plate, and the transverse plates and the elastic parts are provided in a one-to-one correspondence.

[0015] Furthermore, the lower flange includes: a flange plate, which is used to be fixedly connected to the cylinder; a base, which is located on the side of the flange plate away from the cylinder, one end of the crankshaft passes through the flange plate and is located in the base, the oil guide hole, the air inlet hole and the first exhaust hole are all arranged on the base, and the driving mechanism is located in the base.

[0016] Furthermore, the exhaust channel also includes a second exhaust hole, which is arranged on the flange plate, and one end of the second exhaust hole is connected to the compression chamber. The compressor also includes a lower muffler, and the other end of the second exhaust hole can be connected to the inlet of the lower muffler, and the outlet of the lower muffler is connected to the air inlet.

[0017] Furthermore, the compressor further includes a reset member, which is disposed between the oil suction pipe and the oil guide plate, and is used to drive the oil guide plate to move from the second position to the first position.

[0018] According to the technical solution of the present invention, a crankshaft is rotatably disposed within a housing, rotatably connected to a lower flange, and an oil suction pipe is disposed through the lower flange. A first end of an oil guide plate is disposed adjacent to an oil reservoir at the bottom of the housing, while a second end of the oil guide plate is located within the crankshaft. The oil guide plate is capable of transferring oil from the oil reservoir to an internal oil passage of the crankshaft. When the compressor is operating under light conditions (i.e., when the ratio of exhaust pressure to suction pressure within the compressor is low), the oil guide plate is in a first position. When the compressor is operating under heavy conditions (i.e., when the ratio of exhaust pressure to suction pressure within the compressor is high), a drive mechanism drives the oil guide plate to a second position. This arrangement increases the contact area between the oil guide plate and the oil during heavy operating conditions, reducing the distance between the oil guide plate and the liquid inlet at the bottom of the oil suction pipe. This improves the compressor's oil suction efficiency, ensures lubrication within the compressor, and prevents wear of components within the compressor, thereby ensuring the compressor's reliability and proper operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It shows a schematic structural diagram of a compressor provided according to the first embodiment of the present invention;

[0021] Figure 2 It shows a schematic structural diagram of the matching of the crankshaft and the lower flange provided in the first embodiment of the present invention;

[0022] Figure 3 It shows a schematic structural diagram of the cooperation between the lower flange and the driving mechanism provided in the first embodiment of the present invention;

[0023] Figure 4 A top view of a lower flange provided according to embodiment 1 of the present invention is shown;

[0024] Figure 5 A schematic structural diagram showing the cooperation between the base and the driving mechanism provided in the first embodiment of the present invention is shown;

[0025] Figure 6 Shown Figure 5 A partial enlarged view of point A in the middle;

[0026] Figure 7 It shows a schematic structural diagram of a horizontal plate provided according to the first embodiment of the present invention;

[0027] Figure 8 It shows a schematic structural diagram of an elastic member provided according to the first embodiment of the present invention;

[0028] Figure 9 A schematic structural diagram of the cooperation between the lower flange and the driving mechanism provided in accordance with the second embodiment of the present invention is shown.

[0029] The above drawings include the following reference numerals:

[0030] 10. Housing; 11. Oil storage chamber;

[0031] 20. Crankshaft;

[0032] 30. Lower flange; 311. Air inlet; 3111. First circulation channel; 3112. Second circulation channel; 312. First exhaust hole; 32. Oil guide hole; 321. First hole section; 322. Second hole section; 33. Flange; 331. Second exhaust hole; 332. Valve plate; 333. Third circulation channel; 34. Base;

[0033] 40. Oil suction pipe;

[0034] 50. Oil guide plate; 51. First end of the oil guide plate; 52. Second end of the oil guide plate;

[0035] 60. Driving mechanism; 61. Pressure moving member; 62. Horizontal plate; 63. Elastic member; 631. Connecting section; 632. Bending section;

[0036] 70. Cylinder;

[0037] 81. Lower muffler; 82. Reset member; 83. Upper flange; 84. Upper muffler. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] like Figures 1 to 3 As shown, the first embodiment of the present application provides a compressor, which includes a housing 10, a crankshaft 20, a lower flange 30, an oil suction pipe 40, an oil guide plate 50, and a drive mechanism 60. The housing 10 has an oil storage chamber 11 at its bottom, and the crankshaft 20 is rotatably disposed within the housing 10. The lower flange 30 is disposed within the housing 10 and is located at the bottom of the crankshaft 20. One end of the crankshaft 20 is rotatably connected to the lower flange 30. One end of the oil suction pipe 40 is located within the oil storage chamber 11, and the other end of the oil suction pipe 40 is inserted through the lower flange 30. An oil guide plate 50 is movably disposed within the oil suction pipe 40. The oil guide plate 50 has a first end and a second end disposed opposite each other. The first end 51 of the oil guide plate is disposed proximate to the oil reservoir 11, and the second end 52 of the oil guide plate is disposed within the crankshaft 20. The oil guide plate 50 has a first position and a second position relative to the oil suction pipe 40. When the oil guide plate 50 is in the first position or the second position, the second end 52 of the oil guide plate is located within the crankshaft 20. The first end 51 of the oil guide plate is at a higher height in the first position than in the second position. A drive mechanism 60 is disposed within the housing 10 and is drivingly connected to the oil guide plate 50. The drive mechanism 60 is capable of driving the oil guide plate 50 from the first position to the second position.

[0040] Using the technical solution of the present application, the crankshaft 20 is rotatably disposed within the housing 10. The crankshaft 20 is rotatably connected to the lower flange 30. The oil suction pipe 40 is provided through the lower flange 30. The first end 51 of the oil guide plate is disposed adjacent to the oil reservoir 11 at the bottom of the housing 10, and the second end 52 of the oil guide plate is located within the crankshaft 20. The oil guide plate 50 is capable of transporting oil within the oil reservoir 11 to the internal oil passage of the crankshaft 20. When the compressor is operating under light conditions, i.e., when the ratio of the exhaust pressure to the suction pressure within the compressor is small, the oil guide plate 50 is in the first position. When the compressor is operating under heavy conditions, i.e., when the ratio of the exhaust pressure to the suction pressure within the compressor is large, the drive mechanism 60 drives the oil guide plate 50 to move to the second position. With such a configuration, when working under heavy working conditions, the contact area between the oil guide plate 50 and the oil can be increased, and the distance between the oil guide plate 50 and the liquid inlet at the bottom of the oil suction pipe 40 can be reduced, thereby improving the oil suction efficiency of the compressor and ensuring the lubrication effect inside the compressor, thereby avoiding wear of components inside the compressor, and further ensuring the reliability of the compressor and ensuring that the compressor can work normally.

[0041] The drive mechanism 60 is disposed within the lower flange 30. The lower flange 30 does not rotate during operation. The oil guide plate 50 is fitted with a clearance between the oil holes within the crankshaft 20, preventing the oil guide plate 50 from rotating during operation. This arrangement facilitates the drive mechanism 60 in moving the oil guide plate 50 and prevents interference between the drive mechanism 60 and other components during operation. The drive mechanism 60 has an initial state and a driving state that are relatively arranged. When the suction / discharge pressure ratio of the compressor is greater than a preset value, the drive mechanism 60 is in the driving state, driving the oil guide plate 50 to a second position. When the suction / discharge pressure ratio of the compressor is less than the preset value, the oil guide plate 50 is in the first position. This arrangement allows the drive structure to adjust its operating state according to the suction / discharge pressure ratio of the compressor. This ensures lubrication within the compressor while preventing leakage caused by excessive oil in the compressor under light operating conditions.

[0042] Furthermore, the compressor also includes a cylinder 70, which has a compression chamber, in which the crankshaft 20 is inserted, and a lower flange 30 having an exhaust passage, one end of which is connected to the compression chamber, and the other end of which is connected to the interior of the housing 10. The drive mechanism 60 includes a pressure-moving member 61, which is movably arranged in the exhaust passage, and is driven and connected to the oil guide plate 50. The pressure-moving member 61 drives the oil guide plate 50 to move to the second position through the exhaust pressure in the exhaust passage. The compression chamber of the cylinder 70 is connected to the exhaust passage of the lower flange 30, and the drive mechanism 60 is arranged in the exhaust passage. The gas in the compression chamber can drive the pressure-moving member 61 to move to the second position. With the above structure, the pressure-moving member 61 will not consume additional power of the motor in the compressor during operation, and can enable the oil guide plate 50 to quickly absorb oil while ensuring the performance of the compressor. Such a configuration can ensure that the compressor is always in a normal working state.

[0043] like Figures 3 to 5 As shown, the lower flange 30 has an oil guide hole 32 arranged axially therethrough, and the oil guide hole 32 includes a first hole section 321 and a second hole section 322 connected in sequence. The first hole section 321 is arranged away from the crankshaft 20, and the oil suction pipe 40 is connected to the first hole section 321. The second end 52 of the oil guide plate passes through the oil suction pipe 40 and the second hole section 322 and is located in the crankshaft 20. The diameter of the first hole section 321 is smaller than the diameter of the second hole section 322. This arrangement facilitates fixing the oil suction pipe 40 in the first hole section 321. The exhaust passage includes an air inlet 311 and a first exhaust hole 312. The air inlet 311 is provided on the side wall of the lower flange 30. One end of the air inlet 311 is connected to the second hole section 322, and the other end of the air inlet 311 is connected to the compression chamber. One end of the first exhaust hole 312 is connected to the second hole section 322, and the other end of the first exhaust hole 312 passes through the lower flange 30. The pressure moving member 61 is movably provided in the air inlet 311. With such a configuration, the gas entering the air inlet 311 facilitates the movement of the pressure moving member 61. The gas enters the lower flange 30 through the air inlet 311, passes through the second hole section 322, and is finally discharged into the housing 10 through the first exhaust hole 312. In the present application, an exhaust pipeline is provided on the housing 10, and the gas is discharged to the outside of the compressor via the exhaust pipeline.

[0044] like Figure 7 and Figure 8As shown, the drive mechanism 60 also includes a transverse plate 62 and an elastic member 63. The transverse plate 62 is disposed on the sidewall of the oil guide plate 50, and the elastic member 63 is located between the pressure-displacing member 61 and the transverse plate 62. The transverse plate 62 and the oil guide plate 50 are integrally formed. The end of the transverse plate 62 facing away from the oil guide plate 50 is provided with an arcuate structure and a slot. This reduces the resistance of the transverse plate 62 to the oil, thereby facilitating the flow of the oil. The elastic member 63 has an initial state and a deformed state. The pressure-displacing member 61 has an initial position and a driven position relative to each other. When the pressure-displacing member 61 is in the initial position, the elastic member 63 is in the initial state, at which point there is no contact between the elastic member 63 and the transverse plate 62. When the pressure-displacing member 61 is driven by exhaust pressure to move from the initial position toward the driven position, the pressure-displacing member 61 drives the elastic member 63 from the initial state to the deformed state, and the elastic member 63 abuts and cooperates with the transverse plate 62 to drive the oil guide plate 50 from the first position to the second position. At this point, the elastic member 63 contacts the horizontal plate 62 and exerts downward pressure on it, thereby moving the oil guide plate 50 from the first position to the second position. This structure is simple and easy to operate. Furthermore, the horizontal plate 62 and the elastic member 63 occupy a relatively small volume, minimizing their impact on oil flow. In this application, the pressure-displacing member 61 is a pressure valve, and the air inlet 311 is positioned horizontally.

[0045] Among them, the air inlet hole 311 can also be set to an inclined structure, the air inlet end of the air inlet hole 311 is higher than the air outlet end of the air inlet hole 311, the pressure moving part 61 is a piston, and when the piston moves to the driving position, the end of the piston close to the second hole section 322 can extend into the second hole section 322, and the end of the piston close to the second hole section 322 can come into contact with the cross plate 62, so that the piston can also cooperate with the cross plate 62 to drive the oil guide plate 50 to move from the first position to the second position.

[0046] Among them, the air inlet hole 311 can be set horizontally, the pressure moving part 61 is a piston, and an inclined section is set on the end of the piston close to the second hole section 322, and the inclined section gradually tilts upward in the opposite direction of the oil guide plate 50. When the piston moves to the driving position, the inclined section can extend into the second hole section 322, and the inclined section can come into contact with the cross plate 62, so that the piston can also cooperate with the cross plate 62 to drive the oil guide plate 50 to move from the first position to the second position.

[0047] like Figure 6As shown, a gap exists between the sidewall of the pressure-displacing member 61 and the air inlet 311. In the initial position, a first flow channel 3111 is defined between the end of the pressure-displacing member 61 away from the elastic member 63 and the air inlet 311, allowing gas to flow through the first flow channel 3111. In the actuated position, a second flow channel 3112 is defined between the end of the pressure-displacing member 61 away from the elastic member 63 and the air inlet 311. The flow area of ​​the first flow channel 3111 is smaller than that of the second flow channel 3112, allowing gas to flow through the second flow channel 3112. The gap between the sidewall of the pressure-displacing member 61 and the air inlet 311 in the initial position is smaller than the gap between the sidewall of the pressure-displacing member 61 and the air inlet 311 in the actuated position. That is, the diameter of the end of the air inlet 311 closer to the second hole section 322 is larger than the diameter of the end of the air inlet 311 farther from the second hole section 322. With this arrangement, when the gas flow rate is low, the pressure-displacing member 61 is in its initial position, allowing gas to flow through the first circulation channel 3111. When the gas flow rate is high, the gas drives the pressure-displacing member 61 to the driven position, and the gas also flows through the second circulation channel 3112, thereby stabilizing the pressure-displacing member 61 in the driven position. This structure facilitates machining of the lower flange 30, while maintaining a simple structure and facilitating movement of the pressure-displacing member 61. Furthermore, the movement of the pressure-displacing member 61 by the moving gas avoids wasting motor power.

[0048] Specifically, the cross plate 62 extends in the radial direction of the oil guide plate 50. This arrangement facilitates contact between the cross plate 62 and the elastic member 63. The elastic member 63 includes a connecting section 631 and a bending section 632 that are interconnected. The connecting section 631 is fixedly connected to the lower flange 30. The connecting section 631 extends in the radial direction of the lower flange 30 and is located below the pressure-moving member 61. The bending section 632 extends along the axis of the oil guide plate 50 toward the oil guide plate 50. In the initial state of the elastic member 63, the connecting section 631 and the bending section 632 are perpendicular to each other. When the pressure-moving member 61 gradually moves to the driving position, the pressure-moving member 61 can cause the bending section 632 to gradually tilt toward the oil guide plate 50 to provide downward pressure on the cross plate 62. This arrangement facilitates driving the oil guide plate 50 from the first position to the second position. In the present application, the connecting section 631 is riveted to the lower flange 30.

[0049] like Figure 5As shown, the lower flange 30 is provided with a plurality of air inlet holes 311, which are spaced apart along the axial direction of the oil guide plate 50. A pressure moving member 61 and an elastic member 63 are provided in each air inlet hole 311. The oil guide plate 50 is provided with a plurality of transverse plates 62, which are arranged in a one-to-one correspondence with the elastic members 63. The exhaust pressure that drives the pressure moving member 61 to move toward the driving position gradually increases from top to bottom. Between two adjacent pressure moving members 61, when the upper elastic member 63 abuts the corresponding transverse plate 62 and is in a deformed state, the lower transverse plate 62 moves to a position that matches the initial state of the corresponding elastic member 63. This arrangement can increase the range of movement of the oil guide plate 50, thereby making the oil suction efficiency of the oil guide plate 50 suitable for the operation of the compressor under different working conditions. For example, in the present application, two air inlet holes 311 are provided on the lower flange 30. The exhaust pressure capable of driving the pressure-moving member 61 in the upper air inlet hole 311 is lower than the exhaust pressure capable of driving the pressure-moving member 61 in the lower air inlet hole 311. When the pressure-moving member 61 in the upper air inlet hole 311 moves to the driving position and, through the upper elastic member 63, cooperates with the upper transverse plate 62 to drive the oil guide plate 50 to move, the lower transverse plate 62 moves to a position that matches the initial position of the elastic member 63 corresponding to the transverse plate 62. When the exhaust pressure further increases, the pressure-moving member 61 in the lower air inlet hole 311 moves to the driving position and, through the lower elastic member 63, cooperates with the lower transverse plate 62 to drive the oil guide plate 50 to move again. With this structure, when the working conditions are heavy, the pressure-moving member 61 can be opened sequentially from top to bottom, and when the working conditions are light, the pressure-moving member 61 can be closed sequentially from bottom to top.

[0050] The lower flange 30 includes a flange 33 and a base 34. The flange 33 is used to be fixedly connected to the cylinder 70. The base 34 is located on the side of the flange 33 away from the cylinder 70. One end of the crankshaft 20 passes through the flange 33 and is located within the base 34. The oil guide hole 32, the air inlet 311, and the first exhaust hole 312 are all provided on the base 34. The drive mechanism 60 is located within the base 34. The base 34 includes multiple bases, and the number of bases can be determined based on the number of air inlet holes 311. The number of air inlet holes 311 is the same as the number of bases. In the present application, the base 34 includes two bases, which are fixed to the flange 33 by bolts. This arrangement facilitates the fixing of the bases and also facilitates the assembly of the base 34 and the oil guide plate 50.

[0051] like Figure 4As shown, the exhaust passage also includes a second exhaust hole 331, which is provided on the flange 33. One end of the second exhaust hole 331 is in communication with the compression chamber. The compressor also includes a lower muffler 81. The other end of the second exhaust hole 331 can be in communication with the inlet of the lower muffler 81, and the outlet of the lower muffler 81 is in communication with the air inlet 311. In the present application, a valve plate 332 is provided on the second exhaust hole 331, and a third circulation channel 333 is also provided on the flange. The third circulation channel 333 is not in communication with the compression chamber. The high-pressure gas compressed by the cylinder 70 can push open the valve plate 332 through the second exhaust hole 331. A portion of the high-pressure gas enters the flange 33, then enters the lower muffler 81, and finally enters the base 34 through the air inlet 311. Another portion of the high-pressure gas can enter the cavity between the upper flange 83 and the upper muffler 84 through the third circulation channel 333, and then be discharged through the air hole of the upper muffler 84. Such an arrangement can ensure smooth gas flow while silencing the noise.

[0052] Furthermore, the compressor also includes a reset member 82, which is arranged between the oil suction pipe 40 and the oil guide plate 50, and the reset member 82 is used to drive the oil guide plate 50 to move from the second position to the first position. In the present application, a liquid inlet is provided at the bottom of the oil suction pipe 40, and the reset member 82 is arranged between the bottom of the oil suction pipe 40 and the bottom of the oil guide plate 50, and the reset member 82 avoids the liquid inlet when installed. With such an arrangement, when the exhaust pressure decreases, the pressure moving member 61 moves from the driving position to the initial position, the elastic member 63 returns to the initial state, and the reset member 82 can drive the oil guide plate 50 to move to the first position. With such an arrangement, the structure is simple and easy to operate. In the present application, the reset member 82 is a spring. Such an arrangement can reduce the influence of the spring on the oil circulation, while ensuring the reset effect of the spring.

[0053] like Figure 9 As shown, the second embodiment of the present application provides a compressor, which is different from the first embodiment in that: a plurality of air inlet holes 311 are provided on the lower flange 30, and the plurality of air inlet holes 311 are distributed along the circumferential annular interval of the oil guide plate 50, and a pressure moving member 61 and an elastic member 63 are provided in each air inlet hole 311, and a plurality of cross plates 62 are provided on the oil guide plate 50, and the cross plates 62 are provided in a one-to-one correspondence with the elastic members 63. With such a configuration, the plurality of elastic members 63 and the plurality of cross plates 62 can work together at the same time, thereby ensuring the stability of the oil guide plate 50 when it moves from the first position to the second position, preventing the oil guide plate 50 from being stuck after tilting during the movement, and at the same time enabling the oil guide plate 50 to respond faster, thereby increasing the speed at which the oil guide plate 50 moves to the second position, thereby increasing the oil absorption rate of the oil guide plate 50 and ensuring the lubrication of the compressor.

[0054] 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.

[0055] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0056] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0057] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0058] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0059] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A compressor, characterized in that: The compressor comprises: A housing (10), wherein the bottom of the housing (10) is provided with an oil storage chamber (11); A crankshaft (20) is rotatably disposed in the housing (10). A lower flange (30) is disposed in the housing (10), the lower flange (30) is located at the bottom of the crankshaft (20), and one end of the crankshaft (20) is rotatably connected to the lower flange (30); an oil suction pipe (40), one end of the oil suction pipe (40) being located in the oil storage chamber (11), and the other end of the oil suction pipe (40) being passed through the lower flange (30); an oil guide plate (50) movably disposed in the oil suction pipe (40), the oil guide plate (50) having a first end and a second end disposed opposite to each other, the first end (51) of the oil guide plate being disposed close to the oil storage chamber (11), the second end (52) of the oil guide plate being disposed inside the crankshaft (20), the oil guide plate (50) having a first position and a second position disposed relative to the oil suction pipe (40), the second end (52) of the oil guide plate being located inside the crankshaft (20) when the oil guide plate (50) is in the first position or the second position, the first end (51) of the oil guide plate being at a higher height when in the first position than when in the second position; a driving mechanism (60) disposed in the housing (10), the driving mechanism (60) being drivingly connected to the oil guide plate (50), and the driving mechanism (60) being capable of driving the oil guide plate (50) to move from the first position to the second position; The driving mechanism (60) is arranged in the lower flange (30), and the driving mechanism (60) has an initial state and a driving state that are relatively arranged. When the suction and discharge pressure ratio of the compressor is greater than a preset value, the driving mechanism (60) is in the driving state, and the driving mechanism (60) drives the oil guide plate (50) to move to the second position; when the suction and discharge pressure ratio of the compressor is less than the preset value, the oil guide plate (50) is in the first position.

2. The compressor according to claim 1, characterized in that The compressor further includes a cylinder (70), wherein the cylinder (70) has a compression chamber, wherein the crankshaft (20) is disposed in the compression chamber, and wherein the lower flange (30) has an exhaust passage, wherein one end of the exhaust passage is communicated with the compression chamber, and the other end of the exhaust passage is communicated with the interior of the housing (10). The driving mechanism (60) includes a pressure moving member (61), wherein the pressure moving member (61) is movably disposed in the exhaust passage, wherein the pressure moving member (61) is drivingly connected to the oil guide plate (50), and wherein the pressure moving member (61) drives the oil guide plate (50) to move to the second position through the exhaust pressure in the exhaust passage.

3. The compressor according to claim 2, characterized in that The lower flange (30) has an oil guide hole (32) extending through the lower flange in the axial direction. The oil guide hole (32) includes a first hole section (321) and a second hole section (322) connected in sequence. The first hole section (321) is located away from the crankshaft (20). The oil suction pipe (40) is connected to the first hole section (321). The second end (52) of the oil guide plate passes through the oil suction pipe (40) and the second hole section (322) and is located in the crankshaft (20). The exhaust passage includes an air inlet hole (311) and an exhaust hole (312). A first exhaust hole (312), the air inlet hole (311) is arranged on the side wall of the lower flange (30), one end of the air inlet hole (311) is communicated with the second hole section (322), the other end of the air inlet hole (311) is communicated with the compression chamber, one end of the first exhaust hole (312) is communicated with the second hole section (322), the other end of the first exhaust hole (312) passes through the lower flange (30), and the pressure moving member (61) is movably arranged in the air inlet hole (311).

4. The compressor according to claim 3, characterized in that The driving mechanism (60) further includes: A transverse plate (62) is provided on a side wall of the oil guide plate (50); The elastic member (63) is located between the pressure moving member (61) and the transverse plate (62), and the elastic member (63) has an initial state and a deformed state. The pressure moving member (61) has an initial position and a driving position that are relatively set, wherein when the pressure moving member (61) is in the initial position, the elastic member (63) is in the initial state; when the pressure moving member (61) is driven by the exhaust pressure to move from the initial position to the driving position, the pressure moving member (61) drives the elastic member (63) to change from the initial state to the deformed state, and the elastic member (63) abuts against the transverse plate (62) to drive the oil guide plate (50) to move from the first position to the second position.

5. The compressor according to claim 4, characterized in that There is a gap between the side wall of the pressure-moving member (61) and the air inlet hole (311). At the initial position, a first circulation channel (3111) is provided between the end of the pressure-moving member (61) away from the elastic member (63) and the air inlet hole (311). At the driving position, a second circulation channel (3112) is provided between the end of the pressure-moving member (61) away from the elastic member (63) and the air inlet hole (311). The circulation area of ​​the first circulation channel (3111) is smaller than the circulation area of ​​the second circulation channel (3112).

6. The compressor according to claim 4, characterized in that The transverse plate (62) extends in a radial direction of the oil guide plate (50), and the elastic member (63) includes a connecting section (631) and a bending section (632) connected to each other. The connecting section (631) is fixedly connected to the lower flange (30), and the connecting section (631) is located below the pressure moving member (61). The bending section (632) extends along the axis of the oil guide plate (50) in a direction close to the oil guide plate (50).

7. The compressor according to claim 4, characterized in that The lower flange (30) is provided with a plurality of air inlet holes (311), and the plurality of air inlet holes (311) are spaced apart along the axial direction of the oil guide plate (50). The pressure moving member (61) and the elastic member (63) are provided in each of the air inlet holes (311). The oil guide plate (50) is provided with a plurality of transverse plates (62), and the transverse plates (62) and the elastic members (63) are provided in a one-to-one correspondence. The exhaust pressure driving the pressure moving member (61) to move toward the driving position gradually increases from top to bottom. Between two adjacent pressure moving members (61), when the upper elastic member (63) abuts against the corresponding transverse plate (62) and is in the deformed state, the lower transverse plate (62) moves to a position matching the initial state of the corresponding elastic member (63).

8. The compressor according to claim 4, characterized in that The lower flange (30) is provided with a plurality of air inlet holes (311), and the plurality of air inlet holes (311) are distributed in an annular manner along the circumference of the oil guide plate (50). The pressure moving member (61) and the elastic member (63) are provided in each of the air inlet holes (311). The oil guide plate (50) is provided with a plurality of transverse plates (62), and the transverse plates (62) and the elastic members (63) are provided in a one-to-one correspondence.

9. The compressor according to claim 3, characterized in that The lower flange (30) comprises: a flange (33), the flange (33) being used for fixedly connecting to the cylinder (70); A base (34), the base (34) is located on a side of the flange (33) away from the cylinder (70), one end of the crankshaft (20) passes through the flange (33) and is located in the base (34), the oil guide hole (32), the air inlet hole (311) and the first exhaust hole (312) are all provided on the base (34), and the driving mechanism (60) is located in the base (34).

10. The compressor according to claim 9, characterized in that The exhaust passage further includes a second exhaust hole (331), the second exhaust hole (331) being arranged on the flange (33), one end of the second exhaust hole (331) being communicated with the compression chamber, and the compressor further includes a lower muffler (81), the other end of the second exhaust hole (331) being capable of communicating with an inlet of the lower muffler (81), and an outlet of the lower muffler (81) being communicated with the air inlet hole (311).

11. The compressor according to claim 1, characterized in that The compressor further comprises a reset member (82), wherein the reset member (82) is arranged between the oil suction pipe (40) and the oil guide plate (50), and the reset member (82) is used to drive the oil guide plate (50) to move from the second position to the first position.

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