Environment-friendly mute electric scroll compressor

Abstract

The invention discloses an environment-friendly mute electric scroll compressor, and particularly relates to the technical field of scroll compressors, the environment-friendly mute electric scroll compressor comprises an equipment main body, the equipment main body comprises a compression part and a driving part, the equipment main body further comprises a pressure adjusting part and an oil quantity adjusting part, the pressure adjusting part comprises a back pressure shell, a back pressure cavity is formed in the back pressure shell, and a feedback plate is slidably connected in the back pressure cavity; the oil quantity adjusting part comprises a communicating groove, two oil feeding grooves are formed in the back pressure shell and communicate with the communicating groove, the oil feeding groove in the front side communicates with a first oil feeding pipe, and the oil feeding groove in the rear side communicates with a second oil feeding pipe; according to the scroll compressor, the pressure in the back pressure cavity can be regulated and controlled according to environment changes, meanwhile, the oil amount of lubricating oil participating in circulation is regulated and controlled in real time according to different pressures of the two end faces of the dynamic scroll plate, on the premise that the compression efficiency is guaranteed, abrasion of the dynamic scroll plate is reduced, and the service life of the scroll compressor is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of scroll compressors, and more specifically, to an environment-friendly and silent electric scroll compressor. Background Art

[0002] A scroll compressor is a positive-displacement compressor, and its compression components mainly consist of a moving scroll and a stationary scroll. Its working principle is to use the relative revolution motion of the moving and stationary scrolls to form a continuous change in the enclosed volume, thereby achieving the purpose of compressing gas. During the compression process, the stationary scroll is fixed on the frame, and the moving scroll is driven by a crankshaft with a very small eccentricity and is restricted by an anti-rotation mechanism to make a planar motion with a very small radius around the stationary scroll to achieve the compression of the fluid medium.

[0003] As disclosed in the Chinese patent document with the application number 202411282509.X, a moving scroll and a scroll compressor are provided. A compression chamber is provided above the moving scroll, and a back-pressure chamber is provided below the moving scroll. The back-pressure chamber can slowly release pressure. A trigger member, an adjusting member, and a connecting member are provided on the moving scroll. When the trigger member is opened, it can cause the adjusting member to drive the connecting member to open, connecting the compression chamber and the back-pressure chamber to charge the back-pressure chamber. When the trigger member is closed, it can cause the adjusting member to drive the connecting member to close, stopping the charging of the back-pressure chamber. In the present invention, through the mutual cooperation of the trigger member, the adjusting member, and the connecting member, the pressure in the back-pressure chamber is within a variable range, preventing the occurrence of too high or too low pressure.

[0004] This invention can adjust the pressure in the back-pressure chamber, but the trigger condition for realizing the adjustment of the back-pressure chamber pressure is that the moving scroll generates displacement in the vertical direction, and the pressure in the back-pressure chamber is changed by the up and down movement of the moving scroll. However, the moving scroll needs to be in contact with the stationary scroll and maintain sealing, and the displacement amount of the moving scroll relative to the stationary scroll in the design is very small. Changing the charging condition through the displacement change of the moving scroll requires an extremely precise trigger control system. Then, the control of the pressure change in the back-pressure chamber of this invention is not accurate enough. And when the pressure in the back-pressure chamber changes, the normal pressure between the moving scroll and the stationary scroll will change, and the corresponding frictional force will change. When the frictional force changes, the amount of lubricating oil participating in lubrication between the moving scroll and the stationary scroll needs to be adjusted synchronously. On the one hand, to avoid excessive wear caused by too large frictional force, and on the other hand, to control the circulation flow rate of the lubricating oil to avoid too much lubricating oil participating in the circulation and preventing the burden on the heat dissipation of the condenser. However, this invention does not regulate the lubricating oil participating in lubrication according to the change of the pressure in the back-pressure chamber. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an environment-friendly and silent electric scroll compressor to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions: It includes a device main body, and the device main body includes a compression part for compressing gas and a driving part for providing power. It further includes: A pressure regulating part, the pressure regulating part includes a back pressure shell fixedly connected to the device main body. A back pressure cavity is formed inside the back pressure shell. A feedback plate is slidably connected inside the back pressure cavity, and the feedback plate can generate corresponding displacements according to the change of the pressure inside the back pressure cavity. An oil quantity regulating part, the oil quantity regulating part includes a communication groove formed inside the back pressure cavity. Two oil supply grooves are formed inside the back pressure shell. One end of the oil supply groove away from the feedback plate communicates with the communication groove. The front oil supply groove communicates with a first oil supply pipe, and the rear oil supply groove communicates with a second oil supply pipe. When the feedback plate moves, it can respectively change the cross-sectional areas inside the two oil supply grooves.

[0007] Preferably, the compression part includes a moving scroll disk. The moving scroll disk is slidably connected to the back pressure cavity through a sliding block. The compression part includes a stationary scroll disk fixedly connected to the back pressure shell. A self-preventing rotating disk is slidably connected to the lower end of the moving scroll disk, and the self-preventing rotating disk is fixedly connected to the back pressure shell.

[0008] Preferably, the driving part includes a stator fixedly connected to the device main body. The driving part includes a rotating base arranged at the bottom of the device main body. An eccentric shaft is rotatably connected to the rotating base. The upper end of the eccentric shaft is inserted into the back pressure cavity, and a rotor corresponding to the stator is fixedly connected to the eccentric shaft.

[0009] Preferably, a buffer groove with a downward opening is formed at the lower end of the moving scroll disk. The upper end of the eccentric shaft is inserted into the buffer groove. A plurality of through holes are formed in the rotating base. A vertical groove with a downward opening is formed inside the eccentric shaft. The lower end of the vertical groove communicates with the through holes. A horizontal groove communicating with the communication groove is formed on the upper side of the eccentric shaft. The communication groove is annularly arranged. A pressure pump for extracting liquid is arranged inside the vertical groove.

[0010] Preferably, an inflation hole communicating with the back pressure cavity is formed at the center of the moving scroll disk. The feedback plate is annular. The feedback plate is slidably connected to the eccentric shaft. A partition plate is arranged on the lower side of the back pressure cavity. The lower end of the feedback plate is connected to the upper end of the partition plate through a first spring.

[0011] Preferably, a sliding groove is formed on the upper side of the eccentric shaft. A cross plate is slidably connected inside the sliding groove. The cross plate is fixedly connected to the feedback plate. A guiding column is fixedly connected to the upper end of the cross plate. The upper end of the guiding column penetrates through the eccentric shaft, and the upper end of the guiding column is in the shape of a frustum with a smaller upper part and a larger lower part.

[0012] Preferably, a sliding groove with an opening facing downward is provided on the movable scroll, a reset plate is slidably connected in the sliding groove, one end of the reset plate away from the inflation hole is connected to the side wall of the sliding groove via a second spring, a wedge block is provided at the lower end of the reset plate, the lower end surface of the wedge block is an inclined surface with a higher left side and a lower right side, and the lower end of the wedge block can contact the guide column.

[0013] Preferably, a pressure relief groove connected to the back pressure chamber is provided on the back pressure shell, and an annular rotating groove is provided on the feedback plate. A baffle is slidably connected in the rotating groove, and the baffle is slidably connected to the back pressure chamber, and the baffle corresponds to the pressure relief groove.

[0014] Preferably, an adjusting block is slidably connected in the oil delivery groove, the upper end of the adjusting block passes through the back pressure shell and can be inserted into the back pressure cavity, a T-shaped rod is provided at the upper end of the adjusting block, a waist-shaped groove is provided on the T-shaped rod, an adjusting rod is rotatably connected in the back pressure cavity, both ends of the adjusting rod are respectively provided with plug columns inserted into the waist-shaped grooves on the corresponding sides, the lower end of the feedback plate is rotatably connected with a connecting rod, the lower end of the connecting rod passes through the partition and is fixedly connected to the T-shaped rod on the side away from the baffle.

[0015] Preferably, the opening of the first oil delivery pipe is located between the movable scroll and the fixed scroll, the opening of the second oil delivery pipe is located between the movable scroll and the anti-rotation plate, the eccentric shaft is provided with an annular clearance groove, the adjusting rod is located in the clearance groove, the middle part of the adjusting rod is arc-shaped, and the eccentric shaft will not interfere with the adjusting rod when rotating.

[0016] Technical effects and advantages of the present invention: 1. The present invention adjusts the pressure in the back pressure chamber in real time through the coordinated arrangement of the back pressure shell, the back pressure chamber, the feedback plate, the first spring, the guide column, the wedge block, the baffle plate, the pressure relief groove and the inflation hole, so as to avoid the pressure on the back of the movable scroll being too low, which would cause the leakage of high-pressure gas between the movable scroll and the fixed scroll, thereby ensuring the sealing effect of the compression part and the compression efficiency of the scroll compression, avoiding the pressure in the back pressure chamber being too high, which would cause the friction between the movable scroll and the fixed scroll to be too high, and keeping the pressure in the back pressure chamber within a reasonable range, thereby ensuring the service life of the scroll compressor and the compression efficiency of the scroll compressor.

[0017] 2. Through the cooperative setting among the eccentric shaft, vertical groove, oil supply groove, first oil delivery pipe, second oil delivery pipe, adjusting rod, adjusting block, and T-shaped rod, with the change of the pressure in the back pressure chamber, the frictional forces between the moving scroll and the stationary scroll, and between the moving scroll and the anti-self-rotating plate will change. The feedback plate can drive the adjusting rod to swing according to the pressure change, and the adjusting rod drives the two adjusting blocks to move up and down, thereby respectively changing the effective cross-sectional area of the oil supply groove, so that the lubricating oil quantity transported in the first oil delivery pipe and the second oil delivery pipe is correspondingly adjusted according to the pressure difference between the upper and lower end faces of the moving scroll, enabling the upper and lower end faces of the moving scroll to eccentrically rotate with an appropriate amount of lubricating oil, which can avoid excessive wear and also avoid burdening the condenser heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of the moving scroll and the stationary scroll of the present invention.

[0020] Figure 3 It is a sectional perspective view of the main view of the present invention with the equipment main body removed.

[0021] Figure 4 For the present invention Figure 3 The enlarged view of A.

[0022] Figure 5 It is a schematic diagram of the structures of the compression part, drive part, pressure adjustment part, and oil quantity adjustment part of the present invention.

[0023] Figure 6 For the present invention Figure 5 The enlarged view of B.

[0024] Figure 7 It is a schematic diagram of the structures of the communication groove, horizontal groove, and vertical groove of the present invention.

[0025] Figure 8 It is a schematic diagram of the structures of the pressure adjustment part and the oil quantity adjustment part of the present invention.

[0026] Figure 9 It is a schematic diagram of the structure of the adjusting rod and the back pressure chamber of the present invention.

[0027] Figure 10 It is a schematic diagram of the structure of the second oil delivery pipe and the compression part of the present invention.

[0028] The accompanying drawings are marked as follows: 1. Equipment body; 2. Compression unit; 21. Moving scroll; 22. Stationary scroll; 23. Anti-self-rotation disk; 24. Sliding block; 3. Driving unit; 31. Stator; 32. Rotating base; 33. Eccentric shaft; 34. Buffer groove; 35. Suction hole; 36. Vertical groove; 37. Horizontal groove; 38. Pressure pump; 39. Rotor; 4. Pressure regulating unit; 41. Back pressure shell; 42. Back pressure chamber; 43. Feedback plate; 44. Inflating hole; 45. Partition plate; 46. First spring; 47. Slide groove; 48. Horizontal plate; 49. Guide column; 410. Sliding groove; 411. Reset plate; 412. Second spring; 413. Wedge block; 414. Pressure relief groove; 415. Rotation groove; 416. Baffle; 5. Oil quantity adjustment unit; 51. Connecting groove; 52. Oil delivery groove; 53. First oil delivery pipe; 54. Second oil delivery pipe; 55. Adjustment block; 56. T-bar; 57. Waist-shaped groove; 58. Adjustment rod; 59. Insert column; 510. Make way groove; 511. Connecting rod. DETAILED DESCRIPTION

[0029] The following will be combined with the 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 described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1 When the scroll compressor is running, due to differences in environmental climate and usage scenarios, the different temperatures and fluid media of the scroll compressor during operation will result in different required back-pressure chamber pressures. When the pressure in the back-pressure chamber is too high, the wear of the movable scroll will increase, affecting the service life of the scroll compressor. When the pressure in the back-pressure chamber is too low, the sealing effect between the movable scroll and the stationary scroll will deteriorate, and the compressed high-pressure gas will be at risk of leakage. In the prior art, the pressure in the back-pressure chamber is regulated by the displacement change of the movable scroll in the vertical direction. Changing the pressurization conditions by the displacement change of the movable scroll requires an extremely precise trigger control system. This adjustment method is not accurate enough in controlling the pressure change in the back-pressure chamber and has a certain hysteresis.

[0031] To solve the above technical problems, please refer to Figure 1 As shown, the first embodiment of the present invention provides an environmentally friendly silent electric scroll compressor, including an equipment body 1, the equipment body 1 includes a compression part 2 for compressing gas and a driving part 3 for providing power, and also includes a pressure regulating part 4 and an oil quantity regulating part 5.

[0032] See also Figure 5 , Figure 6 and Figure 7As shown, the pressure regulating part 4 includes a back pressure housing 41 fixedly connected to the equipment main body 1. A back pressure chamber 42 is provided in the back pressure housing 41. A feedback plate 43 is slidably connected in the back pressure chamber 42. The feedback plate 43 can generate corresponding displacements according to the change of pressure in the back pressure chamber 42. The oil quantity regulating part 5 includes a communication groove 51 provided in the back pressure chamber 42. Two oil supply grooves 52 are provided in the back pressure housing 41. One end of the oil supply groove 52 far from the feedback plate 43 is communicated with the communication groove 51. The front oil supply groove 52 is communicated with a first oil supply pipe 53, and the rear oil supply groove 52 is communicated with a second oil supply pipe 54. When the feedback plate 43 moves, the cross-sectional areas in the two oil supply grooves 52 can be changed respectively.

[0033] Please refer to Figure 1 , Figure 2 and Figure 10 As shown, the compression part 2 includes a moving scroll 21. The moving scroll 21 is slidably connected to the back pressure chamber 42 through a sliding block 24. The compression part 2 includes a stationary scroll 22 fixedly connected to the back pressure housing 41. A self-preventing rotating disk 23 is slidably connected to the lower end of the moving scroll 21. The self-preventing rotating disk 23 is fixedly connected to the back pressure housing 41.

[0034] Please refer to Figure 1 and Figure 3 As shown, the driving part 3 includes a stator 31 fixedly connected to the equipment main body 1. The driving part 3 includes a rotating base 32 provided at the bottom of the equipment main body 1. An eccentric shaft 33 is rotatably connected to the rotating base 32. The upper end of the eccentric shaft 33 is inserted into the back pressure chamber 42. A rotor 39 corresponding to the stator 31 is fixedly connected to the eccentric shaft 33.

[0035] Please refer to Figure 3 and Figure 4 As shown, an inflation hole 44 communicating with the back pressure chamber 42 is provided at the center of the moving scroll 21. The feedback plate 43 is annular. The feedback plate 43 is slidably connected to the eccentric shaft 33. A partition plate 45 is provided on the lower side of the back pressure chamber 42. The lower end of the feedback plate 43 is connected to the upper end of the partition plate 45 through a first spring 46.

[0036] Please refer to Figure 3 , Figure 4 and Figure 8 As shown, a chute 47 is provided on the upper side of the eccentric shaft 33. A cross plate 48 is slidably connected in the chute 47. The cross plate 48 is fixedly connected to the feedback plate 43. A guide post 49 is fixedly connected to the upper end of the cross plate 48. The upper end of the guide post 49 penetrates through the eccentric shaft 33. The upper end of the guide post 49 is in the shape of a frustum of a cone with a smaller upper part and a larger lower part.

[0037] Please refer to Figure 3 , Figure 4 and Figure 8As shown in the figure, a sliding groove 410 with an opening facing downward is formed on the moving scroll disk 21. A reset plate 411 is slidably connected in the sliding groove 410. One end of the reset plate 411 away from the inflation hole 44 is connected to the side wall of the sliding groove 410 through a second spring 412. A wedge block 413 is provided at the lower end of the reset plate 411. The lower end surface of the wedge block 413 is an inclined surface that is higher on the left and lower on the right. The lower end of the wedge block 413 can contact the guide post 49.

[0038] Please refer to Figure 3 , Figure 4 and Figure 8 As shown in the figure, a pressure relief groove 414 communicating with the back pressure chamber 42 is formed on the back pressure housing 41. An annular rotating groove 415 is formed on the feedback plate 43. A baffle plate 416 is slidably connected in the rotating groove 415. The baffle plate 416 is slidably connected to the back pressure chamber 42. The baffle plate 416 corresponds to the pressure relief groove 414.

[0039] In actual use, lubricating oil is provided at the bottom inside the equipment main body 1. After the stator 31 is energized, an electric current is generated. The rotor 39 drives the eccentric shaft 33 to rotate. The eccentric shaft 33 drives the moving scroll disk 21 to rotate eccentrically relative to the stationary scroll disk 22. The anti-self-rotating disk 23 can assist the moving scroll disk 21 to rotate eccentrically. The refrigerating gas enters from the lower side of the equipment main body 1. The entering refrigerating gas is a low-temperature and low-pressure gas. The gas moves upward inside the equipment main body 1. The gas enters the compression part 2 through the openings between the moving scroll disk 21 and the stationary scroll disk 22. Since the relative movement between the moving scroll disk 21 and the stationary scroll disk 22 compresses the gas, as Figure 2 shown in the figure, the gas is gradually compressed to the middle of the moving scroll disk 21, turning the low-temperature and low-pressure gas into a high-temperature and high-pressure gas. After the gas reaches the set pressure, it is discharged through the pressure valve on the upper side; since the temperature of the refrigerating gas when it returns to the equipment main body 1 will change in real time under the influence of the external environment, the change in temperature will cause a change in the pressure inside the back pressure chamber 42. When the pressure inside the back pressure chamber 42 increases, that is, the gas compressed in the middle of the moving scroll disk 21 and the stationary scroll disk 22 flows into the back pressure chamber 42 through the inflation hole 44, and the pressure inside the back pressure chamber 42 increases. Due to the setting of the feedback plate 43 and the first spring 46, when the pressure inside the back pressure chamber 42 increases, the feedback plate 43 will move downward to maintain pressure balance. The feedback plate 43 moves downward and compresses the first spring 46. At the same time, the feedback plate 43 drives the guide post 49 to move downward. Since the upper end of the guide post 49 is in the shape of a frustum with a smaller upper part and a larger lower part, as the guide post 49 moves downward, the inclined surface at the lower end of the wedge block 413 remains in contact with the inclined surface of the guide post 49 under the action of the reset plate 411 and the second spring 412, causing the reset plate 411 to drive the wedge block 413 to move towards the inflation hole 44. The wedge block 413 gradually blocks the inflation hole 44, reducing the cross-sectional area of the inflation hole 44, and reducing the amount of high-pressure gas flowing into the back pressure chamber 42 per unit time.

[0040] As the feedback plate 43 moves downward, the feedback plate 43 drives the baffle 416 to move downward through the rotation groove 415. Although the feedback plate 43 rotates eccentrically along with the transverse plate 48 and the sliding groove 47, since the baffle 416 is rotationally connected to the rotation groove 415 and the baffle 416 is slidably connected to the back pressure housing 41, when the feedback plate 43 moves downward, the baffle 416 can only move downward in the vertical direction. As the pressure in the back pressure chamber 42 increases, the moving scroll 21 will move upward relative to the back pressure chamber 42, and the back pressure chamber 42 drives the sliding block 24 to move upward. Due to the arrangement of the sliding block 24, the moving scroll 21 remains sealed with the back pressure housing 41 during the upward movement. The upper end of the eccentric shaft 33 moves in the buffer groove 34, so that the eccentric shaft 33 always cooperates with the moving scroll 21. As the pressure in the back pressure chamber 42 increases, the gas flowing into the back pressure chamber 42 through the inflation hole 44 decreases. At the same time, the baffle 416 moves downward. When the pressure in the back pressure chamber 42 is too high, as the baffle 416 moves downward, the pressure relief groove 414 communicates with the back pressure chamber 42, and the gas in the back pressure chamber 42 is discharged, so that the pressure in the back pressure chamber 42 gradually decreases, avoiding excessive wear of the stationary scroll 22 caused by excessive back pressure on the moving scroll 21.

[0041] As can be seen from the above, when the pressure in the back pressure chamber 42 decreases, the feedback plate 43 moves upward under the action of the first spring 46. The feedback plate 43 drives the guide post 49 to move upward. The guide post 49 pushes the wedge block 413 to move. The wedge block 413 drives the reset plate 411 to move away from the inflation hole 44, so that the second spring 412 is compressed, and the effective cross-sectional area of the inflation hole 44 increases. At the same time, the feedback plate 43 drives the baffle 416 to move upward, reducing the effective cross-section of the pressure relief groove 414, increasing the high-pressure gas discharged into the back pressure chamber 42, and reducing the discharged gas, gradually increasing the pressure in the back pressure chamber 42, avoiding too small pressure on the back of the moving scroll 21, resulting in leakage of the high-pressure gas between the moving scroll 21 and the stationary scroll 22, ensuring the sealing effect of the compression part 2, ensuring the compression efficiency of the scroll compressor. The feedback plate 43 can amplify the feedback effect in real time according to the pressure on the back of the back pressure chamber 42, avoiding the situation of too high or too low pressure in the back pressure chamber 42 due to temperature changes, keeping the pressure in the back pressure chamber 42 within a reasonable range, not only ensuring the service life of the scroll compressor, but also ensuring the compression efficiency of the scroll compressor.

[0042] Embodiment 2 Based on the above embodiments, when the moving scroll and the stationary scroll compress gas, relative movement will occur between them, and they will wear each other. In the existing technology, there is a circulation of lubricating oil in the scroll compressor. However, as can be seen from the above embodiments, the pressure between the moving scroll and the stationary scroll changes in real time. When the pressure is too high, since the friction coefficient remains unchanged, the normal pressure increases and the frictional force will increase. When the frictional force increases, the amount of lubricating oil required between the moving scroll and the stationary scroll needs to be increased. In the existing technology, the lubricating oil involved between the moving scroll and the stationary scroll, and between the moving scroll and the anti-rotation disk is not effectively controlled, resulting in the moving scroll not being able to operate in the best state. Too little lubricating oil causes excessive wear, while too much lubricating oil will have a negative impact on the heat dissipation of the condenser, and at the same time, the leaked lubricating oil will pollute the environment.

[0043] Please refer to Figure 3 and Figure 7 As shown, a buffer groove 34 with an opening facing downwards is formed at the lower end of the moving scroll 21. The upper end of the eccentric shaft 33 is inserted into the buffer groove 34. A plurality of suction holes 35 penetrating through the inside and outside are formed on the rotating base 32. A vertical groove 36 with an opening facing downwards is formed in the eccentric shaft 33. The lower end of the vertical groove 36 communicates with the suction hole 35. A horizontal groove 37 communicating with the communication groove 51 is formed on the upper side of the eccentric shaft 33. The communication groove 51 is annularly arranged. A pressure pump 38 for extracting liquid is provided in the vertical groove 36.

[0044] Please refer to Figure 6 、 Figure 8 and Figure 9 As shown, an adjusting block 55 is slidably connected in the oil supply groove 52. The upper end of the adjusting block 55 penetrates through the back pressure housing 41 and can be inserted into the back pressure chamber 42. A T-shaped rod 56 is provided at the upper end of the adjusting block 55. A waist-shaped groove 57 is formed on the T-shaped rod 56. An adjusting rod 58 is rotatably connected in the back pressure chamber 42. Insertion posts 59 inserted into the corresponding waist-shaped grooves 57 on its corresponding sides are respectively provided at both ends of the adjusting rod 58. The lower end of the feedback plate 43 is rotatably connected with a connecting rod 511. The lower end of the connecting rod 511 penetrates through the partition plate 45 and is fixed to the T-shaped rod 56 on the side away from the baffle 416.

[0045] Please refer to Figure 5 and Figure 10 As shown, the opening of the first oil supply pipe 53 is located between the moving scroll 21 and the stationary scroll 22. The opening of the second oil supply pipe 54 is located between the moving scroll 21 and the anti-rotation disk 23. An annular relief groove 510 is formed on the eccentric shaft 33. The adjusting rod 58 is located in the relief groove 510. The middle part of the adjusting rod 58 is arc-shaped, and there will be no interference between the eccentric shaft 33 and the adjusting rod 58 during rotation.

[0046] In actual use, as can be seen from the above embodiments, when the pressure in the back pressure chamber 42 increases, the frictional force between the moving scroll 21 and the stationary scroll 22 increases, while the frictional force between the moving scroll 21 and the anti-self-rotating disk 23 decreases. At this time, the feedback plate 43 moves downward. The feedback plate 43 drives the T-shaped rod 56 on the side away from the baffle 416 to move downward through the connecting rod 511, so that the T-shaped rod 56 on the side away from the baffle 416 drives the corresponding adjusting block 55 to move downward, reducing the effective cross-sectional area of the rear oil supply groove 52. The rear T-shaped rod 56 drives the adjusting rod 58 to swing, causing the front T-shaped rod 56 to drive the adjusting block 55 to move upward, increasing the effective cross-sectional area of the front oil supply groove 52. As the eccentric shaft 33 rotates and under the action of the pressure pump 38, the lubricating oil at the bottom of the equipment main body 1 is pumped into the vertical groove 36 through the suction hole 35. The lubricating oil is sent into the communication groove 51 under the action of the centrifugal force of the eccentric shaft 33. The lubricating oil flows into the two oil supply grooves 52 respectively through the communication groove 51. Since the effective cross-sectional area of the rear oil supply groove 52 decreases and the effective cross-sectional area of the front oil supply groove 52 increases, the lubricating oil in the front oil supply groove 52 flows between the moving scroll 21 and the stationary scroll 22 under the guidance of the first oil delivery pipe 53, and the lubricating oil in the rear oil supply groove 52 flows between the moving scroll 21 and the anti-self-rotating disk 23 under the guidance of the second oil delivery pipe 54, increasing the lubricating oil participating between the moving scroll 21 and the stationary scroll 22 and reducing the lubricating oil participating between the moving scroll 21 and the anti-self-rotating disk 23, thus reasonably distributing the circulation of the lubricating oil.

[0047] When the pressure in the back pressure chamber 42 decreases, the frictional force between the moving scroll 21 and the stationary scroll 22 decreases, while the frictional force between the moving scroll 21 and the anti-self-rotating disk 23 increases. At this time, the feedback plate 43 moves upward. The feedback plate 43 drives the T-shaped rod 56 on the side away from the baffle 416 to move upward through the connecting rod 511, so that the T-shaped rod 56 on the side away from the baffle 416 drives the corresponding adjusting block 55 to move upward, increasing the effective cross-sectional area of the rear oil supply groove 52. The rear T-shaped rod 56 drives the adjusting rod 58 to swing, causing the front T-shaped rod 56 to drive the adjusting block 55 to move downward, reducing the effective cross-sectional area of the front oil supply groove 52, reducing the amount of lubricating oil participating between the moving scroll 21 and the stationary scroll 22, increasing the lubricating oil participating between the moving scroll 21 and the anti-self-rotating disk 23, reasonably distributing the circulation of the lubricating oil, and enabling the upper and lower end faces of the moving scroll 21 to eccentrically rotate with an appropriate amount of lubricating oil, which can avoid excessive wear and also avoid burdening the condenser heat dissipation.

[0048] In summary, the feedback board 43 can perform real-time regulation according to the change of the pressure in the back pressure chamber 42, avoiding the situation that the pressure in the back pressure chamber 42 is too high or too low with the change of temperature, keeping the pressure in the back pressure chamber 42 within a reasonable range, ensuring both the service life of the scroll compressor and the compression efficiency of the scroll compressor. At the same time, it controls the lubricating oil participating in the cycle and regulates the lubricating oil on the upper and lower end faces of the moving scroll 21 according to the pressure value, so that the upper and lower end faces of the moving scroll 21 rotate eccentrically with the appropriate amount of lubricating oil, which can avoid excessive wear and also avoid burdening the heat dissipation of the condenser.

[0049] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. An environmentally friendly silent electric scroll compressor, comprising a device body (1), wherein the device body (1) comprises a compression part (2) for compressing gas and a driving part (3) for providing power, characterized in that: Also includes: A pressure regulating part (4), the pressure regulating part (4) comprising a back pressure shell (41) fixedly connected to the device body (1), a back pressure chamber (42) being provided in the back pressure shell (41), a feedback plate (43) being slidably connected in the back pressure chamber (42), and the feedback plate (43) being capable of generating corresponding displacement according to changes in the pressure in the back pressure chamber (42); An oil quantity regulating part (5), the oil quantity regulating part (5) comprising a connecting groove (51) provided in the back pressure chamber (42), two oil delivery grooves (52) provided in the back pressure housing (41), one end of the oil delivery groove (52) away from the feedback plate (43) being connected to the connecting groove (51), the front oil delivery groove (52) being connected to a first oil delivery pipe (53), and the rear oil delivery groove (52) being connected to a second oil delivery pipe (54), and when the feedback plate (43) moves, the cross-sectional areas in the two oil delivery grooves (52) can be changed respectively.

2. The environmentally friendly silent electric scroll compressor according to claim 1, characterized in that: The compression part (2) comprises a movable scroll (21), the movable scroll (21) being slidably connected to the back pressure chamber (42) via a sliding block (24), the compression part (2) comprising a fixed scroll (22) fixedly connected to the back pressure shell (41), the lower end of the movable scroll (21) being slidably connected to an anti-self-rotation disk (23), and the anti-self-rotation disk (23) being fixedly connected to the back pressure shell (41).

3. The environmentally friendly silent electric scroll compressor according to claim 2, characterized in that: The driving part (3) comprises a stator (31) fixedly connected to the device body (1), and the driving part (3) comprises a rotating base (32) arranged at the bottom of the device body (1), an eccentric shaft (33) being rotatably connected to the rotating base (32), the upper end of the eccentric shaft (33) being inserted into the back pressure chamber (42), and a rotor (39) corresponding to the stator (31) being fixedly connected to the eccentric shaft (33).

4. The environmentally friendly silent electric scroll compressor according to claim 3, characterized in that: A buffer groove (34) with an opening facing downward is formed at the lower end of the movable scroll (21), the upper end of the eccentric shaft (33) is inserted into the buffer groove (34), a plurality of suction holes (35) penetrating inside and outside are formed on the rotating base (32), a vertical groove (36) with an opening facing downward is formed in the eccentric shaft (33), the lower end of the vertical groove (36) is connected to the suction hole (35), a transverse groove (37) connected to the connecting groove (51) is formed on the upper side of the eccentric shaft (33), the connecting groove (51) is arranged in an annular shape, and a pressure pump (38) for extracting liquid is provided in the vertical groove (36).

5. The environmentally friendly silent electric scroll compressor according to claim 4, characterized in that: An air filling hole (44) communicating with the back pressure chamber (42) is provided at the center of the movable scroll (21); the feedback plate (43) is annular and slidably connected to the eccentric shaft (33); a partition plate (45) is provided at the lower side of the back pressure chamber (42); the lower end of the feedback plate (43) is connected to the upper end of the partition plate (45) via a first spring (46).

6. The environmentally friendly silent electric scroll compressor according to claim 5, characterized in that: A slide groove (47) is provided on the upper side of the eccentric shaft (33), a horizontal plate (48) is slidably connected in the slide groove (47), the horizontal plate (48) is fixedly connected to the feedback plate (43), a guide column (49) is fixedly connected to the upper end of the horizontal plate (48), the upper end of the guide column (49) passes through the eccentric shaft (33), and the upper end of the guide column (49) is in the shape of a truncated cone with a small upper portion and a large lower portion.

7. The environmentally friendly silent electric scroll compressor according to claim 6, characterized in that: The movable scroll (21) is provided with a sliding groove (410) with an opening facing downward, and a reset plate (411) is slidably connected in the sliding groove (410). An end of the reset plate (411) away from the inflation hole (44) is connected to the side wall of the sliding groove (410) via a second spring (412), and a wedge block (413) is provided at the lower end of the reset plate (411). The lower end surface of the wedge block (413) is an inclined surface with a higher left side and a lower right side, and the lower end of the wedge block (413) can contact the guide column (49).

8. The environmentally friendly silent electric scroll compressor according to claim 7, characterized in that: The back pressure shell (41) is provided with a pressure relief groove (414) which is in communication with the back pressure chamber (42); the feedback plate (43) is provided with an annular rotation groove (415); a baffle plate (416) is slidably connected in the rotation groove (415); the baffle plate (416) is slidably connected to the back pressure chamber (42); and the baffle plate (416) corresponds to the pressure relief groove (414).

9. The environmentally friendly silent electric scroll compressor according to claim 8, characterized in that: An adjusting block (55) is slidably connected in the oil delivery groove (52), the upper end of the adjusting block (55) passes through the back pressure shell (41) and can be inserted into the back pressure chamber (42), a T-shaped rod (56) is provided at the upper end of the adjusting block (55), a waist-shaped groove (57) is provided on the T-shaped rod (56), an adjusting rod (58) is rotatably connected in the back pressure chamber (42), both ends of the adjusting rod (58) are respectively provided with plug posts (59) inserted into the waist-shaped groove (57) on the corresponding side, and a connecting rod (511) is rotatably connected to the lower end of the feedback plate (43), the lower end of the connecting rod (511) passes through the partition (45) and is fixedly connected to the T-shaped rod (56) on the side away from the baffle (416).

10. The environmentally friendly silent electric scroll compressor according to claim 9, characterized in that: The opening of the first oil delivery pipe (53) is located between the movable scroll (21) and the fixed scroll (22), and the opening of the second oil delivery pipe (54) is located between the movable scroll (21) and the anti-self-rotation plate (23). The eccentric shaft (33) is provided with an annular clearance groove (510), and the adjustment rod (58) is located in the clearance groove (510). The middle part of the adjustment rod (58) is arc-shaped, and the eccentric shaft (33) will not interfere with the adjustment rod (58) when rotating.

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