compressor

Abstract

The application provides a compressor, which comprises a moving scroll, a stationary scroll and an exhaust cover, the compressor has a compression chamber and a high-pressure chamber, the moving scroll and the stationary scroll are matched with each other, the compression chamber is located between the moving scroll and the stationary scroll, the high-pressure chamber is located between the stationary scroll and the exhaust cover, the stationary scroll has an exhaust hole, and the exhaust hole can communicate the compression chamber and the high-pressure chamber. The compressor comprises an oil-gas separation device, the oil-gas separation device is at least partially located in the high-pressure chamber, the oil-gas separation device comprises a base plate part and a plurality of baffle plate parts, the baffle plate parts extend from the base plate part to the direction close to the exhaust hole, the extending direction of the baffle plate parts is substantially parallel to the extending direction of the exhaust hole, the resistance of the mixed fluid of the high-pressure refrigerant and the lubricating oil entering from the exhaust hole is reduced, and therefore the shunt capacity of the oil-gas separation device is improved.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and more particularly to an oil-gas separation structure for a compressor. Background Technology

[0002] The compressor in this technology includes a moving scroll, a stationary scroll, and an exhaust cover. The compressor has a compression chamber and a high-pressure chamber. The moving scroll and the stationary scroll cooperate with each other. The compression chamber is located between the stationary scroll and the moving scroll, and the high-pressure chamber is located between the stationary scroll and the exhaust cover. The stationary scroll has an exhaust port that connects the compression chamber and the high-pressure chamber.

[0003] The compressor in the related technology includes an oil-gas separator located inside the high-pressure chamber. The oil-gas separator includes a baffle perpendicular to the exhaust port. The flow of the high-pressure refrigerant and lubricating oil mixture entering from the exhaust port encounters significant resistance, which is detrimental to guiding the flow of the refrigerant and lubricating oil mixture. Summary of the Invention

[0004] This application provides a compressor with a good flow diversion capacity of its oil-gas separation device.

[0005] On one hand, this application provides a compressor including a moving scroll, a stationary scroll, and an exhaust cover. The compressor has a compression chamber and a high-pressure chamber. The moving scroll and the stationary scroll cooperate with each other. The compression chamber is located between the stationary scroll and the moving scroll. The high-pressure chamber is located between the stationary scroll and the exhaust cover. The stationary scroll has an exhaust port that can connect the compression chamber and the high-pressure chamber. The compressor includes an oil-gas separation device, which is at least partially located in the high-pressure chamber. The oil-gas separation device includes a base plate and a plurality of baffle plates, which extend from the base toward the exhaust port.

[0006] The oil-gas separation device for the compressor provided in this application includes a base plate and multiple baffle plates. The baffle plates extend from the base towards the exhaust port, so that the extension direction of the baffle plates is substantially parallel to the extension direction of the exhaust port. This reduces the resistance to the flow of the high-pressure refrigerant and lubricating oil mixture entering from the exhaust port and improves the flow-guiding capacity of the oil-gas separation device. Attached Figure Description

[0007] Figure 1 This is a three-dimensional structural schematic diagram of a compressor according to this application; Figure 2 Is it like this? Figure 1 A three-dimensional structural diagram of the compressor from another angle; Figure 3 Is it like this? Figure 1 An exploded view of the compressor shown. Figure 4 Is it like this? Figure 1 The diagram shows an exploded view of the compressor from another perspective; Figure 5 Is it like this? Figure 1 A schematic axial cross-sectional view of the compressor shown. Figure 6 Is it like this? Figure 3 A three-dimensional sectional view of the controller shown. Figure 7 Is it like this? Figure 3 A three-dimensional sectional view of the housing assembly shown. Figure 8 Is it like this? Figure 3 A three-dimensional sectional view of the spindle assembly shown. Figure 9 Is it like this? Figure 3 A three-dimensional sectional view of the main bearing housing assembly shown. Figure 10 Is it like this? Figure 3 A three-dimensional sectional view of the moving disk assembly shown. Figure 11 Is it like this? Figure 5 The diagram shows a cross-sectional view of the moving disk assembly and the bearing housing assembly. Figure 12 Is it like this? Figure 3 A three-dimensional structural diagram of the static disk assembly shown; Figure 13 Is it like this? Figure 12 A three-dimensional structural diagram of the static disk assembly shown from another perspective; Figure 14 Is it like this? Figure 12 An exploded view of the static disk assembly shown. Figure 15 Is it like this? Figure 14 The diagram shows an exploded view of the main valve assembly and the auxiliary valve assembly. Figure 16 Is it like this? Figure 12 A three-dimensional stepped sectional view of the static disk assembly shown. Figure 17 Is it like this? Figure 5 A radial cross-sectional schematic diagram of the stationary and moving scroll plates shown. Figure 18 Is it like this? Figure 3 A three-dimensional schematic diagram of the exhaust cover assembly shown; Figure 19 Is it like this? Figure 18 Another perspective perspective of the exhaust cover assembly shown; Figure 20 Is it like this? Figure 1 The diagram shows an axial sectional view of the compressor, with the bolded box lines indicating different pressure chambers of the refrigerant. Figure 21 Is it like this? Figure 3 A front view schematic diagram of the moving scroll plate shown; Figure 22 Is it like this? Figure 3 A three-dimensional sectional view of the moving scroll plate shown. Figure 23 Is it like this? Figure 5 A cross-sectional schematic diagram of the moving scroll plate and the stationary scroll plate shown. Figure 24 Is it like this? Figure 1 The exhaust cover assembly, stationary disc assembly, and moving disc assembly shown are cross-sectional schematic diagrams. Figure 25 Is it like this? Figure 19 An exploded view of the exhaust cover assembly shown. Figure 26 Is it like this? Figure 18 A three-dimensional sectional view of the exhaust cover assembly shown. Figure 27 Is it like this? Figure 18 Another perspective sectional view of the exhaust cover assembly shown; Figure 28 Is it like this? Figure 18 Another perspective sectional view of the exhaust cover assembly shown; Figure 29 Is it like this? Figure 1 The diagram shows a three-dimensional sectional view of the exhaust cover assembly and the stationary disc assembly. Figure 30 Is it like this? Figure 25 A perspective view of another alternative embodiment of the oil separator shown. Detailed Implementation

[0008] like Figures 1 to 5 As shown, this application provides a compressor 100, which includes a controller 10, a housing assembly 20, a main shaft assembly 30, a main bearing housing assembly 40, a moving disc assembly 50, a stationary disc assembly 60, an exhaust cover assembly 70, a plurality of external bolts 78, and a plurality of internal bolts 79. The compressor 100 includes a motor 35, which includes a stator 22 located in the housing assembly 20 and a rotor 32 located in the main shaft assembly 30. In the illustrated embodiment, the compressor 100 is an electric compressor 100. In an alternative embodiment, the compressor 100 may also be a belt-driven compressor 100 powered by an engine. The illustrated embodiment of this application is a scroll-type electric compressor 100. The scroll-type compressor 100 can be applied to automotive air conditioning systems, residential air conditioning systems, or commercial air conditioning systems.

[0009] like Figure 6As shown, the controller 10 includes a controller housing 11, a controller cover 12, a circuit board assembly 13, a connector 14, a terminal block 15, and a secondary bearing 16. The controller housing 11 and the controller cover 12 form a controller cavity 17, and the circuit board assembly 13 is located within the controller cavity 17. The terminal block 15 is fixed to the controller housing 11 and is connected to the circuit board assembly 13. The connector 14 is mounted on the controller housing 11, and the secondary bearing 16 is disposed on the controller housing 11.

[0010] like Figure 7 As shown, the housing assembly 20 includes a housing 21, a stator 22, and a wiring assembly 23, with the stator 22 and wiring assembly 23 fixed inside the housing 21. Figure 5 As shown, the wiring assembly 23 is physically and electrically connected to the terminal block 15. The stator 22 includes an enameled wire winding 221 and a stator core 222. The enameled wire winding 221 is wound around the stator core 222 and is physically and electrically connected to the wiring assembly 23. The connector 14 can be connected to an external power source to provide power to the compressor 100. The connector 14 can also be electrically connected to an external controller to communicate with the external controller.

[0011] like Figure 8 As shown, the spindle assembly 30 includes a spindle 31, a rotor 32, an eccentric sleeve 33, and a front balance block 34. The spindle 31 includes a first end 311 and a second end 312. Figure 5 As shown, the first end 311 is inserted into the auxiliary bearing 16, and the second end 312 is inserted into the eccentric sleeve 33. The axis of the second end 312 is eccentrically positioned relative to the axis of the first end 311, thereby driving the eccentric sleeve 33 to move eccentrically relative to the axis of the rotor 32. The main shaft 31 passes through the rotor 32 and the front balance block 34. Both the rotor 32 and the front balance block 34 are fixed to the main shaft 31, and the front balance block 34 is located between the rotor 32 and the eccentric sleeve 33. The rotor 32 is surrounded by the stator 22, thereby forming a drive motor 35, which drives the main shaft 31 to rotate.

[0012] like Figure 9 As shown, the main bearing housing assembly 40 includes a main bearing housing 41, a main bearing 42, a first gasket 43, a second gasket 44, a shaft seal 45, and a plurality of pins 46. The main bearing 42 and the shaft seal 45 are disposed within the main bearing housing 41. Figure 5As shown, the shaft seal 45 is closer to the front counterweight 34 than the main bearing 42. The first gasket 43 and the second gasket 44 are respectively disposed on opposite sides of the main bearing housing 41. The main bearing housing assembly 40 includes a third gasket 47, which is located on the same side of the main bearing housing 41 as the first gasket 43. The third gasket 47 and the first gasket 43 are spaced apart, and the first gasket 43 surrounds the outer periphery of the third gasket 47. The main bearing housing 41 has multiple connecting holes 411 and multiple screw holes 412. The connecting holes 411 are disposed between the three gaskets 47 and the first gasket 43. Some of the screw holes 412 are located between the three gaskets 47 and the first gasket 43, and the remaining screw holes 412 correspond one-to-one with the screw holes 431 on the first gasket 43.

[0013] Optionally, the first shim 43 and the second shim 44 are symmetrically arranged on opposite sides of the main bearing housing 41. The third shim 47 is a wear-resistant shim, and a plurality of pins 46 extend from the main bearing housing 41 through the third shim 47 and extend to cooperate with the moving disk assembly 50. The plurality of pins 46 are used to prevent the moving disk assembly 50 from rotating.

[0014] like Figure 10 As shown, the moving disc assembly 50 includes a moving scroll 51, a moving disc bearing 53, a first moving disc seal 54, a second moving disc seal 55, and multiple pin rings 56. The moving scroll 51 includes a moving disc body 511 and moving scroll teeth 512 protruding from the moving disc body 511. The moving disc bearing 53 and the moving scroll teeth 512 are located on opposite sides of the moving disc body 511, and the moving disc bearing 53 is fixed to the moving disc body 511. Figure 5 As shown, the main shaft 31 passes through the main bearing housing 41 and the main bearing 42. An eccentric sleeve 33 is inserted into the moving plate bearing 53. The front balance block 34 is located between the main bearing housing 41 and the motor 35. Multiple pin rings 56, the moving plate bearing 53, the first moving plate seal ring 54, and the second moving plate seal ring 55 are located on the same side of the moving plate body 511. Multiple pin rings 56 are fixed to the moving plate body 511, and multiple pin shafts 46 correspond one-to-one with multiple pin rings 56. Each pin shaft 46 is inserted into the corresponding pin ring 56 to prevent the moving scroll 51 from rotating. A first gasket 43 is clamped between the main bearing housing 41 and the moving scroll 51. The first gasket 43 is a wear-resistant material used to enhance the durability of the connection between the main bearing housing 41 and the moving scroll 51. A second gasket 44 is clamped between the main bearing housing 41 and the housing 21. The second gasket 44 is a wear-resistant material used to enhance the durability of the connection between the main bearing housing 41 and the housing 21.

[0015] like Figure 11As shown, the moving disc body 511 includes a back pressure sealing groove 513. A first moving disc sealing ring 54 is located within the back pressure sealing groove 513, and a second moving disc sealing ring 55 is at least partially located within the back pressure sealing groove 513, sandwiched between the first moving disc sealing ring 54 and a third gasket 47. The materials of the first moving disc sealing ring 54 and the second moving disc sealing ring 55 are different. The elasticity of the first moving disc sealing ring 54 is greater than that of the second moving disc sealing ring 55, while the wear resistance of the second moving disc sealing ring 55 is greater than that of the first moving disc sealing ring 54. This arrangement ensures the sealing performance between the moving disc body 511 and the main bearing 42 due to the good elasticity of the first moving disc sealing ring 54, and ensures the wear resistance of the seal due to the good wear resistance of the second moving disc sealing ring 55. Optionally, the first moving disc sealing ring 54 is an O-ring with a circular cross-section, and the second moving disc sealing ring 55 is made of polyetheretherketone (PEEK) with a rectangular cross-section. Optionally, the first moving disc sealing ring 54 is an X-shaped rubber ring with an X-shaped cross-section, thereby further improving the resilience of the first moving disc sealing ring 54.

[0016] like Figures 12 to 14 As shown, the stationary disc assembly 60 includes a stationary scroll plate 61, a high-pressure chamber seal 64, a main valve plate assembly 65, a secondary valve plate assembly 66, and a positioning pin 68. The stationary scroll plate 61 includes a stationary disc body 611, stationary scroll teeth 614, and a stationary cylindrical body 62. The scroll teeth 614 and the cylindrical body 62 protrude from the stationary disc body 611 in the same direction, wherein the protruding length of the cylindrical body 62 is greater than the protruding length of the scroll teeth 614. The cylindrical body 62 surrounds the periphery of the scroll teeth 614, and the scroll teeth 614 are connected to the inner wall of the cylindrical body 62. Multiple air inlets 621 are provided around the cylindrical body 62. Figure 20 As shown, the stationary scroll 61 and the moving scroll 51 cooperate to form a compression chamber 103. The moving scroll 51 moves relative to the stationary scroll 61, thereby creating a continuously compressed space that compresses the refrigerant entering from the inlet 621. The locating pin 68 is used for positioning and mounting between the stationary scroll assembly 60 and the exhaust cover assembly 70.

[0017] like Figures 14 to 16As shown, the stationary scroll 61 has a main exhaust port 631, two auxiliary exhaust ports 632, and two drain ports 633. The main exhaust port 631, the two auxiliary exhaust ports 632, and the two drain ports 633 all penetrate the stationary scroll body 611 along the axial direction Z of the compressor 100. The main exhaust port 631 is located in the central area of ​​the stationary scroll body 611, and the two auxiliary exhaust ports 632 are located on opposite sides of the main exhaust port 631. The two drain ports 633 are located on opposite sides of the main exhaust port 631, and the distance between each drain port 633 and the main exhaust port 631 is greater than the distance between the auxiliary exhaust port 632 and the main exhaust port 631 on the same side. The main exhaust port 631 is used to discharge high-pressure refrigerant during normal refrigerant compression, and the auxiliary exhaust ports 632 are used for auxiliary discharge of unexpectedly high-pressure refrigerant when the pressure in the compression chamber 103 is high. The drain hole 633 is used to prevent liquid refrigerant from impacting the stationary volute 614 and the moving volute 512 when liquid refrigerant enters the compression chamber 103 in the refrigerant system, and to discharge the liquid refrigerant.

[0018] like Figures 12 to 16 As shown, the main valve assembly 65 includes a main valve plate 651, a main limiter 654, and a main limit screw 658. The main limit screw 658 fixes the main valve plate 651 and the main limiter 654 to the stationary disc body 611, and the main valve plate 651 is clamped between the main limiter 654 and the stationary disc body 611. The main valve plate 651 includes a main fixing plate 652 and three main elastic plates 653. The three main elastic plates 653 respectively block the main exhaust port 631 and two auxiliary exhaust ports 632. When the refrigerant pressure in the compression chamber 103 reaches a certain level, the pressure of the high-pressure refrigerant will disengage the main elastic plates 653 from the corresponding exhaust ports, thereby releasing the refrigerant in the compression chamber 103 into the high-pressure chamber 104.

[0019] The main limiter 654 includes a main limit plate 655 and three main limit springs 657. The main limit plate 655 abuts against the main fixing plate 652. The three main limit springs 657 correspond one-to-one with three main elastic plates 653. Each main limit spring 657 limits each main elastic plate 653, thereby controlling the amount of refrigerant discharged and reducing the risk of plastic deformation of the main elastic plate 653.

[0020] The auxiliary valve assembly 66 includes an auxiliary valve 661, an auxiliary limiter 664, and an auxiliary limit screw 667. The auxiliary limit screw 667 fixes the auxiliary valve 661 and the auxiliary limiter 664 to the stationary disc body 611, with the auxiliary valve 661 clamped between the auxiliary limiter 664 and the stationary disc body 611. The auxiliary valve 661 includes an auxiliary fixing plate 662 and two auxiliary elastic plates 663. The two auxiliary elastic plates 663 respectively block the two drain holes 633. When liquid refrigerant enters the compression chamber 103, the liquid refrigerant disengages the auxiliary valve 661 from the corresponding drain hole 633, thereby releasing the liquid refrigerant from the compression chamber 103, reducing the risk of liquid slugging damage to the moving scroll 51 and the stationary scroll 61, and improving the safety of the compressor 100.

[0021] The secondary limiter 664 includes a secondary limit plate 665 and two secondary limit springs 666. The secondary limit plate 665 abuts against the secondary fixing plate 662. The two secondary limit springs 666 correspond one-to-one with two secondary elastic plates 663. Each secondary limit spring 666 limits each secondary elastic plate 663, thereby controlling the amount of refrigerant discharged and reducing the risk of plastic deformation of the secondary elastic plates 663.

[0022] The stationary disc body 611 includes a high-pressure chamber sealing groove 612. The high-pressure chamber seal 64 is located in the high-pressure chamber sealing groove 612 and is sandwiched between the stationary disc body 611 and the exhaust cover assembly 70 to seal the stationary disc assembly 60 and the exhaust cover assembly 70, thereby forming a high-pressure chamber 104.

[0023] like Figures 18 to 19 As shown, the exhaust cover assembly 70 includes an exhaust cover 71, a filter screen 74, an oil separator 75, and a pressure relief valve 76. The oil separator 75 is disposed in the inner cavity 713 of the exhaust cover 71 and is used to separate refrigerant and lubricating oil. The pressure relief valve 76 is installed on the exhaust cover 71 and is used to release high-pressure refrigerant in the event of unexpected high pressure in the compressor 100, ensuring the safety of the compressor and refrigerant system.

[0024] like Figures 1 to 4 As shown, multiple external bolts 78 sequentially pass through the exhaust cover 71, stationary scroll 61, moving scroll 51, main bearing housing 41, and housing 21 to secure the exhaust cover assembly 70, stationary scroll assembly 60, moving scroll assembly 50, main bearing housing assembly 40, and housing assembly 20. Multiple internal bolts 79 sequentially pass through the main bearing housing 41, housing 21, and controller housing 11 to secure the main bearing housing assembly 40, housing assembly 20, and controller 10. (Combined...) Figure 3 and Figure 9 As shown, the inner bolt 79 passes through the screw hole 412 of the main bearing housing 41 and the screw hole 431 of the first washer 43. The compressor 100 has a plurality of fixing holes 105, which are located in the exhaust cover 71, the stationary scroll 61 and the housing 21, respectively. The fixing holes 105 are used to fix the compressor to the outside.

[0025] like Figure 20 As shown in the figure, the bolded boxes indicate the pressure chambers of the compressor 100 at different refrigerant pressures. The compressor 100 has a low-pressure chamber 101, a back-pressure chamber 102, a compression chamber 103, and a high-pressure chamber 104. A moving scroll 51 and a stationary scroll 61 cooperate with each other. The compression chamber 103 is located between the stationary scroll 61 and the moving scroll 51. The high-pressure chamber 104 is located between the stationary scroll 61 and the exhaust cover 71. The back-pressure chamber 102 is located between the moving scroll 51 and the main bearing housing 41. The low-pressure chamber 101 is at least partially located between the main bearing housing 41 and the controller 10. A shaft seal 45 is provided between the low-pressure chamber 101 and the back-pressure chamber 102. A first moving plate seal ring 54 and a second moving plate seal ring 55 are provided between the back-pressure chamber 102 and the compression chamber 103. A high-pressure chamber seal 64 is provided between the compression chamber 103 and the high-pressure chamber 104.

[0026] The stationary scroll 61 has a main exhaust port 631, which connects the compression chamber 103 and the high-pressure chamber 104. In its natural state, the main elastic plate 653 blocks the main exhaust port 631, thereby separating the high-pressure chamber 104 and the compression chamber 103. Under the pressure of the high-pressure refrigerant, the main elastic plate 653 undergoes elastic deformation, thereby connecting the high-pressure chamber 104 and the compression chamber 103, allowing the high-pressure refrigerant in the compression chamber 103 to enter the high-pressure chamber 104. (See also...) Figure 9 and Figure 20 The main bearing housing 41 has multiple connecting holes 411 that connect the low-pressure chamber 101 and the compression chamber 103.

[0027] like Figures 1 to 20 As shown, the housing 21 is equipped with an inlet 24. When the compressor 100 is working in the refrigerant system, the motor 35 is connected to an external power source. The refrigerant enters the low-pressure chamber 101 through the inlet 24, absorbs heat from the motor 35, and cools the motor 35. After passing through multiple connecting holes 411 of the main bearing seat 41, it flows into the air inlet 621 of the stationary scroll 61 and then into the compression chamber 103. The motor 35 drives the main shaft 31 to rotate, causing the eccentric sleeve 33 to move eccentrically. This causes the moving scroll 51 to move relative to the stationary scroll 61. The refrigerant continuously reduces the compression space from the periphery of the compression chamber 103 to the center of the compression chamber 103, thereby compressing the refrigerant into a high-pressure refrigerant. The high-pressure refrigerant pushes open the middle main elastic plate 653 in the main valve plate assembly 65 and enters the high-pressure chamber 104 through the main exhaust port 631.

[0028] When the pressure inside the compression chamber 103 is high, there is a risk that the moving scroll 51 and the stationary scroll 61 may separate, and there is a risk that the refrigerant may leak without being compressed.

[0029] like Figures 21 to 23As shown, the moving scroll 51 has a back pressure port 57. When the refrigerant fluid pressure in the compression chamber 103 is high, the refrigerant fluid in the high-pressure chamber 104 or the compression chamber 103 is introduced into the back pressure chamber 102, thereby providing an axial force to the moving scroll 51 to move closer to the stationary scroll 61. This achieves axial floating and axial flexibility of the moving scroll 51, reducing the risk of refrigerant leakage due to detachment between the moving scroll 51 and the stationary scroll 61. In the illustrated embodiment of this application, the moving scroll 51 is provided with a first back pressure port 571 and a second back pressure port 572. When the compressor 100 is working, during the movement of the moving scroll 51 relative to the stationary scroll 61, the first back pressure port 571 intermittently communicates with the high-pressure chamber 104, thereby introducing high-pressure refrigerant into the back pressure chamber 102. The second back pressure port 572 communicates with the back pressure chamber 102, thereby introducing the refrigerant in the back pressure chamber 102 into the compression chamber 103. In this way, by allowing refrigerant to enter through the first back pressure port 571 and the second back pressure port 572 of the moving scroll 51, a relative balance between the compression chamber 103 and the back pressure chamber 102 can be achieved, improving the sealing performance and axial floating capability of the moving scroll 51 and the stationary scroll 61. This reduces the risk of excessive fluid pressure in the compression chamber 103, which could lead to the separation of the moving scroll 51 and the stationary scroll 61.

[0030] like Figure 22 As shown, the first back pressure port 571 includes a first section 573 and a second section 574. The first section 573 penetrates the moving volute 512, and the second section 574 penetrates the moving disc body 511. The inner diameter of the first section 573 is larger than that of the second section 574, thereby facilitating the entry of high-pressure refrigerant from the high-pressure chamber 104 into the first back pressure port 571 and reducing the risk of excessive high-pressure refrigerant entering the back pressure chamber 102. A filter screen can be installed inside the first section 573 to filter impurities in the refrigerant and lubricating oil mixture. The second back pressure port 572 includes a first portion 575 and a second portion 576. The second back pressure port 572 only penetrates the moving disc body 511, and the first portion 575 is closer to the moving volute 512 than the second portion 576. The inner diameter of the second hole 576 is larger than that of the first hole 575, thereby facilitating the entry of refrigerant from the back pressure chamber 102 into the second back pressure port 572 and reducing the amount of refrigerant entering the compression chamber 103 from the back pressure chamber 102. The second back pressure port 572 is located close to the root of the moving volute 512, thereby maximizing the connection time between the second back pressure port 572 and the back pressure chamber 102 and the compression chamber 103.

[0031] like Figures 24 to 29As shown, the compressor 100 includes an oil-gas separator 80, which is at least partially located within the high-pressure chamber 104. The compressor 100 has a first separation chamber 81 and a second separation chamber 82. The oil-gas separator 80 includes a first base plate portion 84, a plurality of first baffle portions 88, and a plurality of second baffle portions 72. The first separation chamber 81 and the second separation chamber 82 are located on different sides of the first base plate portion 84, the plurality of first baffle portions 88 are located in the first separation chamber 81, and the plurality of second baffle portions 72 are located in the second separation chamber 82. This application divides the high-pressure chamber 104 into two separation chambers via the first base plate portion 84. The first baffle portions 88 in the first separation chamber 81 perform first-stage oil separation on the mixture of refrigerant and lubricating oil, and the second baffle portions 72 in the second separation chamber 82 perform second-stage oil separation on the mixture of refrigerant and lubricating oil. The first-stage oil separation achieves initial separation of the lubricating oil, and the second-stage oil separation achieves fine separation of the lubricating oil, thereby improving the separation effect of the mixture of refrigerant and lubricating oil.

[0032] The second baffle section 72 includes a first sub-baffle 721 and a second sub-baffle 722, which are spaced apart from each other. The first sub-baffle 721 is closer to the outlet 73 than the second sub-baffle 722, and the extending direction of the first sub-baffle 721 is not parallel to the extending direction of the second sub-baffle 722. The relative arrangement of the first sub-baffle 721 and the second sub-baffle 722 increases the number of fluid backflows, thereby improving the oil-gas separation effect.

[0033] In the illustrated embodiment, the first substrate portion 84 and the plurality of first baffle portions 88 are integrated as one piece, and the plurality of second baffle portions 72 and the exhaust cap 71 are integrated as one piece. This arrangement reduces the manufacturing difficulty and cost of the two-stage oil separator.

[0034] A first substrate portion 84 is spaced between a first separation chamber 81 and a second separation chamber 82. The first substrate portion 84 has a first through hole 85 and a second through hole 86. The first through hole 85 connects the first separation chamber 81 and the second separation chamber 82, and the second through hole 86 also connects the first separation chamber 81 and the second separation chamber 82. The inner diameter of the first through hole 85 is larger than the inner diameter of the second through hole 86. The first through hole 85 allows the mixed fluid after passing through the first separation chamber 81 to enter the second separation chamber 82, while the second through hole 86 allows the lubricating oil separated in the second separation chamber 82 to flow back into the first separation chamber 81. The first through hole 85 serves to concentrate and spray the fluid that has undergone the first oil-gas separation in the first separation chamber 81 into the second separation chamber 82, increasing the flow rate in the second separation chamber 82 and thus improving the effect of the second-stage oil-gas separation in the second separation chamber 82. The second through hole 86 allows the lubricating oil separated in the second separation chamber 82 to be concentrated and flowed back into the first separation chamber 81, and then into the return oil channel.

[0035] The compressor 100 includes an oil separator 75, which includes a first baffle portion 88 and a first base plate portion 84. The exhaust cover 71 includes a second baffle portion 72. The oil separator 75 and the exhaust cover 71 are made of different materials; the oil separator 75 is made of plastic, while the exhaust cover 71 is made of metal. The plastic material of the oil separator 75 not only reduces material costs and the weight of the compressor 100 but also improves the ease of assembly of the oil separator 75.

[0036] The oil separator 75 includes a peripheral wall 87 extending from the first base plate portion 84 toward the main exhaust port 631. A first separation chamber 81 is defined by the peripheral wall 87 and the first base plate portion 84. A first baffle portion 88 extends from the first base plate portion 84 toward the first separation chamber 81 in a direction away from the second separation chamber 82. The first baffle portion 88 guides the refrigerant and lubricating oil mixture in the first separation chamber 81 to the first base plate portion 84 for impact, achieving oil-gas separation. It also guides the separated lubricating oil to the second through hole 86, facilitating its entry into the oil return channel. Furthermore, the first baffle portion 88 also strengthens the oil separator 75.

[0037] like Figure 28 As shown, the exhaust cover 71 has an outlet 73 that communicates with the second separation chamber 82. The exhaust cover 71 includes a second base plate portion 711 and a cylindrical wall 712. The outlet 73 is disposed on the cylindrical wall 712. The second base plate portion 711 is further away from the first base plate portion 84 relative to the outlet 73. The exhaust cover 71 has an inner cavity 713. The second base plate portion 711 and the cylindrical wall 712 surround the inner cavity 713. The oil separator hood 75 and the static vortex disk 61 are located in the inner cavity 713 of the exhaust cover 71. The second baffle portion 72 extends from the second base plate portion 711 toward the first base plate portion 84 and abuts against the first base plate portion 84. The second baffle portion 72 and the second base plate portion 711 are integral parts.

[0038] like Figure 29 As shown, the oil separator 75 of the oil-gas separator 80 has a first oil return hole 83, the exhaust cover 71 has a first oil return channel 91, and the stationary vortex plate 61 has a second oil return channel 92. The first oil return hole 83 is connected to the first oil return channel 91, the first oil return channel 91 is connected to the second oil return channel 92, the second oil return channel 92 is connected to the air inlet 621, and the air inlet 621 is connected to the compression chamber 103. A filter screen 74 is installed in the first oil return channel 91. The filter screen 74 filters impurities in the lubricating oil, reducing the risk of blockage in the oil return channel. A throttle plug 93 is installed in the second oil return channel 92. The throttle plug 93 reduces the flow rate of lubricating oil into the low-pressure chamber 101 or the compression chamber 103, reducing the problem of insufficient lubrication caused by excessively fast lubricating oil flow.

[0039] like Figure 25As shown, the oil separator 75 includes a first baffle portion 88 and a first base plate portion 84. The oil separator 75 includes a peripheral wall 87 extending from the first base plate portion 84 towards the main exhaust port 631, and the peripheral wall 87 is provided with a first oil return hole 83. The first base plate portion 84 has a first through hole 85 and a second through hole 86. The first through hole 85 connects the first separation chamber 81 and the second separation chamber 82, and the second through hole 86 connects the first separation chamber 81 and the second separation chamber 82. The inner diameter of the first through hole 85 is larger than the inner diameter of the second through hole 86. Figure 29 As shown, the first oil return hole 83 is fluidly connected to the second through hole 86 and the first oil return channel 91, and the first oil return hole 83 is connected to the first separation chamber 81 and the first oil return channel 91.

[0040] like Figure 24 and Figure 29 As shown, the first oil return channel 91 includes a first channel 911 and a second channel 912. The compressor 100 has an axial direction Z. The extension direction of the first channel 911 is inclined relative to the axial direction Z, and the extension direction of the second channel 912 is parallel to the axial direction Z. The first channel 911 extends from a position near the first oil return hole 83 in a direction away from the moving scroll 51, and the second channel 912 extends from a position near the first channel 911 in a direction near the moving scroll 51. The first channel 911 extends in a zigzag direction away from the moving scroll 51, increasing the flow path of the lubricating oil, thereby reducing the risk of insufficient lubrication caused by excessively fast lubrication. The inner diameter of the second channel 912 is larger than the inner diameter of the first channel 911, and the filter screen 74 is disposed in the second channel 912.

[0041] The stationary scroll 61 has an oil reservoir 94, which communicates with the second channel 912. The inner diameter of the oil reservoir 94 is larger than the inner diameter of the second channel 912, while the inner diameter of the second oil return channel 92 is smaller than the inner diameter of the second channel 912. The second oil return channel 92 includes a third channel 921 and a fourth channel 922. The compressor 100 has an axial direction Z. The extension direction of the third channel 921 is inclined relative to the axial direction Z, and the extension direction of the fourth channel 922 is parallel to the axial direction Z. The third channel 921 extends from a position near the oil reservoir 94 toward the moving scroll 51, and the fourth channel 922 extends from a position near the third channel 921 toward the direction away from the moving scroll 51. The fourth channel 922 extends back from the end of the third channel 921 toward the direction away from the moving scroll 51, increasing the flow path of the lubricating oil and thus reducing the risk of insufficient lubrication caused by excessively fast lubrication. The extension direction of the third channel 921 is inclined relative to the axial direction Z, and the extension direction of the third channel 921 is parallel to the first channel 911 at an acute angle.

[0042] like Figure 24As shown, the stationary scroll 61 includes a first mating surface 671, and the exhaust cover 71 is included on a second mating surface 771, with the first mating surface 671 abutting against the second mating surface 771. One of the stationary scroll 61 and the exhaust cover 71 is provided with a high-pressure chamber sealing groove 612. The compressor 100 includes a high-pressure chamber seal 64, at least partially located in the high-pressure chamber sealing groove 612, which abuts against either the first mating surface 671 or the second mating surface 771. Optionally, the high-pressure chamber seal is an O-ring.

[0043] The stationary vortex disk 61 has an air inlet 621. The stationary vortex disk 61 includes a first mating surface 672 located between the air inlet 621 and the first mating surface 671. The exhaust cover 71 includes a second mating surface 772 disposed opposite to the first mating surface 672. There is a gap between the first mating surface 672 and the second mating surface 772. The gap is connected to the compression chamber 103 that communicates with the air inlet 621 and to the low-pressure chamber 101.

[0044] like Figure 30 As shown, this is a second embodiment of the oil separator 75. A plurality of first baffle portions 88 include a first row of baffles 881 and a second row of baffles 882. The first row of baffles 881 extends along a first direction, and the second row of baffles 882 extends along a second direction. The first and second directions are different, thereby improving the oil-gas separation effect and enhancing the drainage effect of the separated lubricating oil.

[0045] The first through hole 85 and the second through hole 86 are located on different sides of the plurality of second baffle portions 72. The first through hole 85 is closer to the surrounding wall 87 relative to at least one second baffle portion 72, and the second through hole 86 is closer to the surrounding wall 87 relative to at least one second baffle portion 72.

[0046] The oil-gas separation device 80 of the compressor 100 of this application includes base plate portions 711 and 84 and multiple baffle portions 72 and 88. The baffle portions 72 and 88 extend from the base plate portions 711 and 84 toward the direction close to the main exhaust port 631, so that the extension direction of the baffle portions 72 and 88 is substantially parallel to the extension direction of the main exhaust port 631, thereby reducing the resistance to the flow of the high-pressure refrigerant and lubricating oil mixture entering from the main exhaust port 631 and improving the flow diversion capacity of the oil-gas separation device.

[0047] The above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. The understanding of this specification should be based on those skilled in the art. For example, directional descriptions such as "front", "back", "left", "right", "up", and "down" are only used to describe the relationship between objects and are not substantial limitations. "Multiple" means at least two or more.

[0048] Although this specification has described the present application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present application, and all technical solutions and improvements that do not depart from the spirit and scope of the present application should be covered within the scope of the claims of the present application.

Claims

1. A compressor, characterized in that, The compressor includes a moving scroll, a stationary scroll, and an exhaust cover. The compressor has a compression chamber and a high-pressure chamber. The moving scroll and the stationary scroll cooperate with each other. The compression chamber is located between the stationary scroll and the moving scroll. The high-pressure chamber is located between the stationary scroll and the exhaust cover. The stationary scroll has an exhaust port that can connect the compression chamber and the high-pressure chamber. The compressor includes an oil-gas separator, which is at least partially located in the high-pressure chamber. The oil-gas separator includes a base plate and a plurality of baffle plates, which extend from the base plate toward the exhaust port. The oil-gas separation device includes an oil separator hood, a base plate portion including a first base plate portion, a baffle portion including a plurality of first baffle portions, the oil separator hood including the first base plate portion and the plurality of first baffle portions, the first base plate portion and the plurality of first baffle portions being an integral piece, the compressor including a first separation chamber and a second separation chamber, the first base plate portion being spaced between the first separation chamber and the second separation chamber, the first base plate portion dividing the high-pressure chamber into the first separation chamber and the second separation chamber, the first base plate portion having a first through hole and a second through hole, the first through hole connecting the first separation chamber and the second separation chamber, the second through hole connecting the first separation chamber and the second separation chamber; the base plate portion including a second base plate portion, the baffle portion including a plurality of second baffle portions, the second base plate portion and the plurality of second baffle portions being an integral piece, and the oil separator hood being disposed in the inner cavity of the exhaust cover.

2. The compressor according to claim 1, characterized in that, The exhaust port extends along the axial direction, the extension direction of the base plate is perpendicular to the axial direction, the baffle portion protrudes relative to the base plate portion, and the protrusion direction of the baffle portion is parallel to the axial direction.

3. The compressor according to claim 1, characterized in that, The exhaust cover includes the second base plate portion and the plurality of second baffle portions; The extension direction of the first substrate portion is parallel to the extension direction of the second substrate portion. The first baffle portion protrudes relative to the first substrate portion, and the second baffle portion protrudes relative to the second substrate portion. The protrusion direction of the first baffle portion is parallel to the protrusion direction of the second baffle portion.

4. The compressor according to claim 3, characterized in that, The oil separator is provided with the first separation chamber, and the second separation chamber is located between the first substrate portion and the second substrate portion; The first substrate portion has a first through hole for refrigerant to flow through and a second through hole for lubricating oil to flow through; The first through hole and the second through hole are located on different sides of the first substrate portion.

5. The compressor according to claim 1, characterized in that, The oil separator includes a peripheral wall extending from the first substrate portion toward the exhaust port, the peripheral wall and the first substrate portion being located around the first separation chamber; The plurality of first baffle portions are interconnected, and the first through hole and the second through hole are located on different sides of the plurality of first baffle portions. The first through hole is closer to the surrounding wall relative to at least one first baffle portion, and the second through hole is closer to the surrounding wall relative to at least one first baffle portion.

6. The compressor according to claim 1, characterized in that, The oil separator includes a peripheral wall extending from the first substrate portion toward the exhaust port, the peripheral wall and the first substrate portion being located around the first separation chamber; The plurality of first baffle portions are arranged separately from each other. The plurality of first baffle portions include a first column of baffles and a second column of baffles. The first column of baffles extends along a first direction, and the second column of baffles extends along a second direction. The first direction and the second direction are different. The first through hole and the second through hole are located on different sides of the plurality of first baffle portions, the first through hole being closer to the surrounding wall relative to at least one first baffle portion, and the second through hole being closer to the surrounding wall relative to at least one first baffle portion.

7. The compressor according to claim 4, characterized in that, The exhaust cap has an outlet that communicates with the second separation chamber. The plurality of second baffle portions include a first sub-baffle and a second sub-baffle. The first sub-baffle and the second sub-baffle are spaced apart from each other. The first sub-baffle is closer to the outlet than the second sub-baffle. The extension direction of the first sub-baffle is not parallel to the extension direction of the second sub-baffle.

8. The compressor according to claim 1, characterized in that, The oil separator and the exhaust cover are made of different materials; the oil separator is made of plastic, while the exhaust cover is made of metal.

9. The compressor according to any one of claims 1 to 8, characterized in that, The oil-gas separator has a first oil return hole, the exhaust cover has a first oil return channel, and the stationary vortex has a second oil return channel and an air inlet. The first oil return hole is connected to the first oil return channel, the first oil return channel is connected to the second oil return channel, the second oil return channel is connected to the air inlet, and the air inlet is connected to the compression chamber. The first oil return channel is equipped with a filter screen, and the second oil return channel is equipped with a throttle plug.

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