Multi-heat-source synchronous cooling oil-free scroll air compressor

Abstract

The application relates to the technical field of air compressors, and discloses an oil-free scroll air compressor with multiple heat sources synchronously cooled, which comprises a protective frame, a static disc body and a motor front end cover fixedly connected to the two sides of the protective frame, a bypass direct connection throttling assembly arranged on the top of the static disc body and the protective frame, a dynamic disc body arranged on the side of the static disc body, a flow circulation heat dissipation assembly arranged in the dynamic disc body, a stirring heat dissipation assembly and an isolation ventilation heat dissipation assembly arranged in the motor front end cover. The internal memory spring of the bypass direct connection throttling assembly is deformed by heat to adjust the flow area of the channel and distribute the cooling liquid flow into the motor side; the ceramic heat insulation rod and the ceramic ring cut off the axial heat conduction of the static disc to the motor, and the centrifugal blade stirs the fluid to accelerate the convection heat exchange; the isolation ventilation heat dissipation assembly blocks the cooling liquid from seeping into the sealed motor chamber, the centrifugal guide blade drives the internal air to flow through the wave-shaped cooling water jacket to complete heat exchange and air circulation heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of air compressor technology, specifically to an oil-free scroll air compressor with simultaneous cooling of multiple heat sources. Background Technology

[0002] During operation, the moving and stationary discs of an oil-free scroll air compressor mesh to compress the gas, generating high temperatures. Simultaneously, the high-speed rotation of the motor assembly also generates significant heat. Existing water-cooling structures typically employ fixed coolant channels. In this traditional design, the distribution ratio of coolant flowing through the compressor head and motor end cannot be altered. Under varying workloads, the temperature changes of different heat sources differ. The fixed flow channels cannot automatically adjust the coolant distribution based on the actual temperature of specific areas, resulting in insufficient cooling for some high-heat regions, causing localized heat buildup and reducing the overall operational stability of the equipment.

[0003] Conventional air compressors typically use metal components to connect the compressor end and the motor end of the main shaft. Metal has a high thermal conductivity and lacks physical structures to block heat conduction. The high temperature generated in the compression chamber spreads directly to the motor side along the main shaft structure, increasing the motor's heat dissipation burden. Furthermore, the coolant inside the equipment usually flows smoothly along a predetermined channel, resulting in a thick fluid boundary layer and a lack of mechanical agitation. This limits the heat exchange rate between the fluid and the surface of the metal heating elements, preventing the heat adhering to the surface from dissipating quickly and limiting overall convective heat transfer efficiency.

[0004] Furthermore, to prevent short-circuit faults, the motor assembly inside an oil-free scroll air compressor is typically installed within a sealed chamber. Traditional designs struggle to balance adequate waterproofing with proper heat dissipation within the motor's internal space. The tightly sealed casing traps heat generated by the motor, making it difficult for it to dissipate. This confined space lacks a mechanism to drive air circulation and an interface for heat exchange between the internal air and external cooling water. Prolonged operation of the motor in this enclosed, high-temperature environment accelerates the aging of internal insulation materials, shortens the overall lifespan of the equipment, and increases future maintenance costs. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an oil-free scroll air compressor with simultaneous cooling of multiple heat sources. It solves the problems of local heat accumulation caused by the fixed distribution ratio of cooling fluid in existing water-cooled structures, limited convective heat transfer efficiency due to the lack of structures on the main shaft to block heat conduction and agitate the fluid, and heat accumulation caused by the lack of air circulation and external water heat exchange interface inside the sealed motor chamber.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an oil-free scroll air compressor with simultaneous cooling of multiple heat sources, comprising a protective frame, wherein a stationary disc body and a motor front end cover are fixedly connected to both sides of the protective frame, and two bypass direct-connection throttling components are provided on the top of the stationary disc body and the protective frame, a moving disc body is fixedly connected to the side of the stationary disc body near the protective frame, a flow-through heat dissipation component is provided inside the moving disc body, a turbulence-induced heat dissipation component is provided inside the end of the motor front end cover near the protective frame, and an isolation ventilation heat dissipation component is provided at the other end of the motor front end cover; The isolation ventilation and heat dissipation assembly includes a frame plate, which is fixedly connected to the inner side of the front end cover of the motor. A waterproof isolation plate is fixedly connected to the inner side of the frame plate. Multiple oblique holes are opened inside both ends of the frame plate. A waterproof annular plate is fixedly connected to the side of the waterproof isolation plate. A corrugated cooling water jacket is fixedly connected to the side of the waterproof annular plate. A circular cover plate is fixedly connected to the other end of the corrugated cooling water jacket. The circular cover plate is fixedly connected to the inner side of the front end cover of the motor. A ventilation frame is fixedly connected to the bottom of the corrugated cooling water jacket. Multiple ventilation holes are opened at the bottom of the corrugated cooling water jacket and are connected to the ventilation frame. A ventilation pipe is fixedly connected to the bottom of the ventilation frame and is fixedly connected to the inner side of the front end cover of the motor.

[0007] Preferably, the isolation ventilation and heat dissipation assembly further includes a motor bearing, which is rotatably connected to the inner side of the waterproof isolation plate. A ceramic heat insulation rod is fixedly connected to the side of the motor bearing, and the ceramic heat insulation rod is rotatably connected to the inner side of the front end cover of the motor. A motor assembly and multiple centrifugal guide vanes are fixedly connected to the outer side of the ceramic heat insulation rod. The motor assembly and multiple centrifugal guide vanes are all disposed inside the corrugated cooling water jacket.

[0008] Preferably, the agitation and heat dissipation assembly includes a ceramic ring, which is fixedly connected to the outside of the motor bearing. The inner side of the ceramic ring is provided with multiple water collection and throwing grooves. A ceramic heat insulation rod is fixedly connected to the end of the motor bearing away from the motor assembly. Multiple centrifugal blades are fixedly connected to the side of the motor bearing. A first anti-rotation bearing is provided between the motor bearing and the protective frame. A bucket-shaped waterproof ring is fixedly connected to the side of the first anti-rotation bearing near the multiple centrifugal blades.

[0009] Preferably, the bypass direct-connect throttling assembly includes a direct-connect channel, which is fixedly connected to the inner side of the protective frame and the front end cover of the motor. A direct-connect water inlet is provided on the inner side of the stationary disc body. One end of the direct-connect channel is fixedly connected to the side of the direct-connect water inlet. A fixing bottom ring is fixedly connected to the inner side of the direct-connect channel. A fixing rod is fixedly connected to the inner side of the fixing bottom ring. A limit groove is slidably connected to the outer side of the end of the fixing rod. A memory spring is provided on the outer side of the fixing bottom ring. A closing valve block is fixedly connected to the outer side of the limit groove. A limit ring is fixedly connected to the middle of the direct-connect channel. The closing valve block is located on the side of the limit ring.

[0010] Preferably, the heat dissipation assembly includes two vortex disks, which are disposed on the side of the stationary disk body. A partition plate is provided on the side of the two vortex disks away from the stationary disk body, and multiple water-blocking ribs are distributed around the other side of the partition plate. A connecting groove is provided at multiple ends of the partition plate.

[0011] Preferably, the heat dissipation assembly further includes a moving plate body, which is fixedly connected to the outside of the stationary plate body. A moving plate cover is fixedly connected to one end of the moving plate body away from the stationary plate body. A second anti-rotation bearing is provided between the inner side of the first anti-rotation bearing and the outer side of the ceramic heat insulation rod. A plurality of water-blocking ribs are fixedly connected to the outer side of the second anti-rotation bearing. A connecting hole is provided in the middle of the stationary plate body, which connects the interior of the stationary plate body and the middle of the two vortex plates.

[0012] Preferably, eccentric pin assemblies are fixedly connected to the inner sides of multiple ends of the partition plate, multiple third anti-rotation bearings are provided in the middle of the multiple eccentric pin assemblies, water seal assemblies are fixedly connected to both ends of the multiple eccentric pin assemblies, an eccentric pin locking nut is fixedly connected to the side of one of the third anti-rotation bearings, and eccentric pin holes are opened on the inner sides of the multiple eccentric pin assemblies.

[0013] Preferably, the interior of the stationary disc body has two eccentric pin water inlets and two eccentric pin water outlets. Limiting covers are fixedly connected to the outer sides of both the two eccentric pin water inlets and the two eccentric pin water outlets. The two eccentric pin water inlets are located at the lower part of the stationary disc body, and the two eccentric pin water outlets are located at the upper part of the stationary disc body. One end of each of the multiple eccentric pin assemblies is fixedly connected to the inner side of the multiple limiting covers. Micro-expansion / contraction nozzles are fixedly connected to the outer sides of the limiting covers fixedly connected to the outer sides of the two eccentric pin water outlets. A water inlet storage tank is provided at the bottom of the stationary disc body, and a high thermal conductivity micro-column array is fixedly connected to the outer side of the water inlet storage tank. The outlet angles of the two micro-expansion / contraction nozzles correspond to the high thermal conductivity micro-column array.

[0014] Preferably, the static plate body is provided with a static plate water storage tank inside, an exhaust port is provided in the middle of the top of the static plate body, and air inlets are provided at both ends of the top of the static plate body. The exhaust port and the two air inlets are all connected to the interior of the static plate body.

[0015] Preferably, a static plate cover is fixedly connected to the side of the static plate body, a motor rear cover is fixedly connected to the side of the motor front cover, a whole machine water inlet is fixedly connected to the bottom inner side of the static plate body, and a whole machine water outlet is fixedly connected to the bottom inner side of the motor rear cover.

[0016] This invention provides an oil-free scroll air compressor with simultaneous cooling of multiple heat sources. It has the following beneficial effects: 1. The present invention uses a bypass direct-connection throttling component set on the top of the stationary disc body. The memory spring inside the direct-connection channel expands and contracts when heated, which drives the closed valve block to slide along the fixed rod outside the limiting groove. This changes the flow area between the closed valve block and the limiting ring, and distributes the flow of coolant into the front cover of the motor according to the temperature changes of different heat sources, thus avoiding local heat accumulation.

[0017] 2. The present invention uses a ceramic heat insulation rod fixedly connected to the end of the motor bearing and an externally fixed ceramic ring to cut off the axial heat conduction path from the stationary plate to the motor assembly by utilizing the low thermal conductivity of the ceramic material. In conjunction with the rotation of the motor bearing, the water collection and throwing tank and the centrifugal blades rotate, and the internal fluid is thrown outward by centrifugal force and the surrounding coolant is stirred, thereby accelerating the fluid convection heat transfer rate.

[0018] 3. The present invention uses a waterproof isolation plate and a corrugated cooling water jacket on the inner side of the front cover of the motor to prevent external coolant from seeping into the motor cavity. The main shaft rotation drives the centrifugal guide vanes to run, driving the air in the sealed cavity to flow through the inner wall of the corrugated cooling water jacket to exchange heat. After cooling, the air passes through the ventilation holes and enters the lower ventilation frame to flow back into the motor cavity, completing the internal air circulation and heat dissipation of the closed environment. Attached Figure Description

[0019] Figure 1 This is an overall perspective view of the present invention; Figure 2 This is an exploded view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the static disk body of the present invention; Figure 4 This is a schematic diagram of the internal structure of the protective frame of the present invention; Figure 5 This is a schematic diagram of the internal structure of the motor front end cover of the present invention; Figure 6 This is a schematic diagram of the internal structure of the moving disk body of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of A in the middle; Figure 8 This is a schematic diagram of the overall structure of the eccentric pin assembly of the present invention; Figure 9 This is a schematic diagram of the internal structure of the bypass direct-connect throttling component of the present invention; Figure 10 This is a schematic diagram of the overall structure of the turbulence-dissipating heat dissipation component of the present invention; Figure 11 This is a schematic diagram of the internal structure of the wave-shaped cooling water jacket of the present invention; Figure 12 This is a schematic diagram of the overall ventilation structure of the isolation ventilation and heat dissipation component of the present invention; Figure 13 This is a schematic diagram of the overall structure of the motor bearing and the two ceramic heat insulation rods on the outside of the present invention; Figure 14(a) is a schematic diagram of the flow and heat dissipation of the coolant from the connecting holes in the stationary disk to the interior of the moving disk. Figure 14(b) is a schematic diagram of the overall eccentric pin assembly of the present invention flowing and dissipating heat to the coolant inside the stationary plate; Figure 14(c) is a schematic diagram of the flow and heat dissipation of the bypass direct-connection throttling assembly to the motor section of the present invention. Figure 15 This is a schematic diagram of the internal compressed gas flow direction of the present invention.

[0020] The components include: 1. Static disc cover; 2. Static disc body; 3. Protective frame; 4. Motor front cover; 5. Motor rear cover; 6. Exhaust port; 7. Air inlet; 8. Miniature expansion and contraction nozzle; 9. High thermal conductivity micro-column array; 10. Machine water inlet; 11. Direct connection channel; 12. Moving disc body; 13. Scroll disc; 14. First anti-rotation bearing; 15. Direct connection water inlet hole; 16. Static disc water storage tank; 17. Water inlet water storage tank; 18. Limiting cover; 19. Connecting hole; 20. Eccentric pin assembly; 21. Moving disc cover; 22. Connecting groove; 23. Frame plate; 24. Angled hole; 25. Waterproof isolation plate; 26. Centrifugal blades; 27. Machine water outlet. 28. Ventilation frame; 29. ​​Ventilation duct; 30. Corrugated cooling water jacket; 31. Waterproof ring plate; 32. Circular cover plate; 33. Ceramic heat insulation rod; 34. Second anti-rotation bearing; 35. Water-blocking rib; 36. Eccentric pin hole; 37. Eccentric pin locking nut; 38. Third anti-rotation bearing; 39. Water seal assembly; 40. Fixed bottom ring; 41. Memory spring; 42. Limiting groove; 43. Fixed rod; 44. Limiting ring; 45. Closing valve block; 46. Ceramic ring; 47. Water collection and throwing trough; 48. Motor assembly; 49. Centrifugal guide vane; 50. Ventilation hole; 51. Bucket-shaped waterproof ring; 52. Motor bearing; 53. Divider plate. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see the appendix Figure 5 Appendix Figure 10 -Appendix Figure 12 This invention provides an oil-free scroll air compressor with simultaneous cooling of multiple heat sources, including a protective frame 3. A stationary disc body 2 and a motor front end cover 4 are fixedly connected to both sides of the protective frame 3. Two bypass direct-connection throttling components are provided on the top of the stationary disc body 2 and the protective frame 3. A moving disc body 12 is fixedly connected to the side of the stationary disc body 2 near the protective frame 3. A flow heat dissipation component is provided inside the moving disc body 12. A turbulence heat dissipation component is provided inside the end of the motor front end cover 4 near the protective frame 3. An isolation ventilation heat dissipation component is provided at the other end of the motor front end cover 4. The isolation ventilation and heat dissipation assembly includes a frame plate 23, which is fixedly connected to the inside of the motor front cover 4. A waterproof isolation plate 25 is fixedly connected to the inside of the frame plate 23. Multiple oblique holes 24 are opened inside both ends of the frame plate 23. A waterproof annular plate 31 is fixedly connected to the side of the waterproof isolation plate 25. A corrugated cooling water jacket 30 is fixedly connected to the side of the waterproof annular plate 31. A circular cover plate 32 is fixedly connected to the other end of the corrugated cooling water jacket 30. The circular cover plate 32 is fixedly connected to the inside of the motor front cover 4. A ventilation frame 28 is fixedly connected to the bottom of the corrugated cooling water jacket 30. Multiple ventilation holes 50 are opened at the bottom of the corrugated cooling water jacket 30 and are connected to the ventilation frame 28. A ventilation pipe 29 is fixedly connected to the bottom of the ventilation frame 28 and is fixedly connected to the inside of the motor front cover 4.

[0023] The isolation ventilation and heat dissipation assembly also includes a motor bearing 52, which is rotatably connected to the inner side of the waterproof isolation plate 25. A ceramic heat insulation rod 33 is fixedly connected to the side of the motor bearing 52. The ceramic heat insulation rod 33 is rotatably connected to the inner side of the motor front end cover 4. A motor assembly 48 and multiple centrifugal guide vanes 49 are fixedly connected to the outer side of the ceramic heat insulation rod 33. The motor assembly 48 and multiple centrifugal guide vanes 49 are all located inside the corrugated cooling water jacket 30.

[0024] Specifically, the bypass direct-connect throttling component is used to regulate the flow distribution of coolant among different components; the flow-through heat dissipation component is used to guide the flow of coolant inside the moving plate body 12 for heat dissipation; the turbulence heat dissipation component is used to accelerate fluid flow inside the motor front end cover 4 to improve heat exchange effect; the isolation ventilation heat dissipation component is used to prevent liquid infiltration in a closed environment while achieving air circulation heat dissipation; the frame plate 23 is used to support and fix the waterproof isolation plate 25; the waterproof isolation plate 25 is used to prevent coolant from entering the cavity where the motor assembly 48 is located; the oblique hole 24 is used to guide airflow within the frame plate 23; and the waterproof annular plate 31 is used to connect the waterproof isolation plate 25. 5. A corrugated cooling water jacket 30 is used to introduce coolant for water cooling of the internal area; a circular cover plate 32 is used to close the end of the corrugated cooling water jacket 30; a ventilation frame 28, a ventilation pipe 29, and a ventilation hole 50 are used to form a channel for air circulation inside the motor chamber; a motor bearing 52 is used to support the internal rotating parts; a ceramic heat insulation rod 33 is used to transmit rotational power while blocking heat conduction along the axial direction; a motor assembly 48 is used to provide rotational power for the whole machine operation; a centrifugal guide vane 49 is used to rotate with the rotor to drive the internal air flow, causing internal heat to be transferred to the corrugated cooling water jacket 30.

[0025] Please see the appendix Figure 5 Appendix Figure 10 Appendix Figure 11 and attached Figure 13 The agitation and heat dissipation assembly includes a ceramic ring 46, which is fixedly connected to the outside of the motor bearing 52. Multiple water collection and splashing grooves 47 are provided on the inner side of the ceramic ring 46. A ceramic heat insulation rod 33 is fixedly connected to the end of the motor bearing 52 away from the motor assembly 48. Multiple centrifugal blades 26 are fixedly connected to the side of the motor bearing 52. A first anti-rotation bearing 14 is provided between the motor bearing 52 and the protective frame 3. A bucket-shaped waterproof ring 51 is fixedly connected to the side of the first anti-rotation bearing 14 near the multiple centrifugal blades 26.

[0026] Specifically, the ceramic ring 46 is used to insulate heat conduction by utilizing its own material properties; the water collection and throwing trough 47 is used to collect coolant during rotation and throw the liquid out by centrifugal force to remove surface heat; the motor bearing 52 is used to support the connected components and maintain their stable rotation; the ceramic heat insulation rod 33 is used to structurally block heat transfer along the axial direction; the centrifugal blade 26 is used to follow the rotational motion to agitate the surrounding fluid and enhance the convective heat transfer effect; the first anti-rotation bearing 14 is used to provide positioning support and prevent adjacent components from rotating; the bucket-shaped waterproof ring 51 is used to directionally block the fluid and prevent coolant from entering the interior of the first anti-rotation bearing 14.

[0027] Please see the appendix Figure 6 and attached Figure 9The bypass direct-connection throttling assembly includes a direct-connection channel 11, which is fixedly connected to the inner side of the protective frame 3 and the motor front end cover 4. A direct-connection water inlet 15 is provided on the inner side of the stationary disc body 2. One end of the direct-connection channel 11 is fixedly connected to the side of the direct-connection water inlet 15. A fixed bottom ring 40 is fixedly connected to the inner side of the direct-connection channel 11. A fixed rod 43 is fixedly connected to the inner side of the fixed bottom ring 40. A limit groove 42 is slidably connected to the outer side of the end of the fixed rod 43. A memory spring 41 is provided on the outer side of the fixed bottom ring 40. A closing valve block 45 is fixedly connected to the outer side of the limit groove 42. A limit ring 44 is fixedly connected to the middle of the direct-connection channel 11. The closing valve block 45 is provided on the side of the limit ring 44.

[0028] Specifically, the bypass direct-connect throttling assembly is used to automatically adjust the flow rate of coolant in the bypass pipeline according to temperature changes; the direct-connect channel 11 is used to provide a bypass path for coolant to flow directly into the interior of the motor front cover 4; the direct-connect water inlet 15 is used to guide coolant into the direct-connect channel 11; the fixed bottom ring 40 is used to provide a support base inside the direct-connect channel 11 for installing the fixed rod 43 and the memory spring 41; the fixed rod 43 is used to provide guidance for the sliding of the closed valve block 45; the limiting groove 42 is used to cooperate with the fixed rod 43 to limit the movement trajectory of the closed valve block 45; the memory spring 41 is used to sense changes in ambient temperature and generate expansion and contraction deformation, thereby driving the closed valve block 45 to move; the closed valve block 45 is used to change position to adjust the flow cross-sectional area inside the channel; the limiting ring 44 is used to limit the movement range of the closed valve block 45 and cooperates with the closed valve block 45 to realize the opening or cutting off of the flow channel.

[0029] Please see the appendix Figure 2 -Appendix Figure 4 Appendix Figure 6 and attached Figure 7 The heat dissipation assembly includes two vortex disks 13, which are disposed on the side of the stationary disk body 2. A partition plate 53 is provided on the side of the two vortex disks 13 away from the stationary disk body 2. Multiple water-blocking ribs 35 are distributed around the other side of the partition plate 53. A connecting groove 22 is provided at multiple ends of the partition plate 53.

[0030] The heat dissipation assembly also includes a moving plate body 12, which is fixedly connected to the outside of the stationary plate body 2. A moving plate cover plate 21 is fixedly connected to the end of the moving plate body 12 away from the stationary plate body 2. A second anti-rotation bearing 34 is provided between the inner side of the first anti-rotation bearing 14 and the outer side of the ceramic heat insulation rod 33. Multiple water-blocking ribs 35 are fixedly connected around the outer side of the second anti-rotation bearing 34. A connecting hole 19 is opened in the middle of the stationary plate body 2, which connects the interior of the stationary plate body 2 and the middle of the two scroll plates 13.

[0031] Specifically, the flow-through heat dissipation components guide the coolant to flow within the structure to absorb the heat generated during operation; the scroll plates 13 mesh with each other to compress the gas and perform work; the partition plates 53 separate the internal components and provide structural support for the connecting grooves 22 and the water-blocking ribs 35 at the edges; the first anti-rotation bearing 14 restricts the rotation of the moving plate and maintains its translational rotation; the water-blocking ribs 35 change the flow direction of the coolant and extend the water flow path to improve the heat dissipation effect; the connecting grooves 22 provide a flow channel for the coolant at the end of the components; the moving plate body 12 carries the internal components and provides space for liquid heat dissipation; the moving plate cover 21 closes the moving plate body 12 to prevent coolant leakage; the second anti-rotation bearing 34 provides support at the center and restricts the rotation of related components; and the connecting holes 19 guide the coolant through the heat-generating core area for heat exchange.

[0032] Please see the appendix Figure 3 Appendix Figure 4 Appendix Figure 6 and attached Figure 8 The inner sides of multiple ends of the partition plate 53 are fixedly connected with eccentric pin assemblies 20. Multiple third anti-rotation bearings 38 are provided in the middle of the multiple eccentric pin assemblies 20. Water seal assemblies 39 are fixedly connected to both ends of the multiple eccentric pin assemblies 20. An eccentric pin locking nut 37 is fixedly connected to the side of one of the third anti-rotation bearings 38. Eccentric pin holes 36 are opened on the inner side of the multiple eccentric pin assemblies 20.

[0033] The interior of the stationary disc body 2 has two eccentric pin water inlets and two eccentric pin water outlets. Limiting covers 18 are fixedly connected to the outside of the two eccentric pin water inlets and two eccentric pin water outlets. The two eccentric pin water inlets are located at the lower part of the stationary disc body 2, and the two eccentric pin water outlets are located at the upper part of the stationary disc body 2. One end of multiple eccentric pin assemblies 20 is fixedly connected to the inside of multiple limiting covers 18. Miniature expansion and contraction nozzles 8 are fixedly connected to the outside of the limiting covers 18 fixedly connected to the outside of the two eccentric pin water outlets. A water inlet storage tank 17 is provided at the bottom of the stationary disc body 2. A high thermal conductivity micro-column array 9 is fixedly connected to the outside of the water inlet storage tank 17. The outlet angle of the two miniature expansion and contraction nozzles 8 corresponds to the high thermal conductivity micro-column array 9.

[0034] Specifically, the eccentric pin assembly 20 is used to transmit eccentric rotational motion and connect the stationary plate and the partition plate 53 and other related components; the third anti-rotation bearing 38 is used to support the rotation of the eccentric pin assembly 20 and limit the rotation of related components; the water seal assembly 39 is used to seal the connection of components to prevent coolant leakage; the eccentric pin locking nut 37 is used to fasten and lock the position of the eccentric pin assembly 20; the eccentric pin hole 36 is used to provide a channel for coolant to flow inside the eccentric pin assembly 20; the eccentric pin inlet hole and the eccentric pin outlet hole are used to guide coolant into the interior of the moving plate body 12 and out to the stationary plate body 2, respectively; the limiting cover plate 18 is used to close the hole and limit the position of the end of the eccentric pin assembly 20; the micro-expansion nozzle 8 is used to change the local flow channel cross-section to accelerate the coolant and form a high-speed fluid for concentrated heat exchange; the inlet water tank 17 is used to collect and contain the coolant entering the equipment; the high thermal conductivity micro-pillar array 9 is used to expand the heat exchange area of ​​the metal surface and improve the heat conduction and heat dissipation efficiency of the area.

[0035] Please see the appendix Figure 1 -Appendix Figure 3 The static plate body 2 is equipped with a static plate water storage tank 16 inside. The top center of the static plate body 2 is equipped with an exhaust port 6, and both ends of the top of the static plate body 2 are equipped with air inlets 7. The exhaust port 6 and the two air inlets 7 are all connected to the interior of the static plate body 2.

[0036] Specifically, the stationary plate water tank 16 is used to contain coolant, allowing the coolant to circulate inside the stationary plate body 2 and cool down the heat-generating parts; the exhaust port 6 is used to discharge the gas after internal compression work to the outside of the equipment; and the air inlet 7 is used to guide the external gas to be compressed into the working chamber inside the stationary plate body 2.

[0037] Please see the appendix Figure 1 and attached Figure 2 The side of the static disc body 2 is fixedly connected to the static disc cover plate 1, the side of the motor front cover 4 is fixedly connected to the motor rear cover plate 5, the bottom inner side of the static disc body 2 is fixedly connected to the whole machine water inlet 10, and the bottom inner side of the motor rear cover plate 5 is fixedly connected to the whole machine water outlet 27.

[0038] Specifically, the stationary disc cover 1 is used to seal the side chamber of the stationary disc body 2 to prevent internal coolant leakage; the motor rear cover 5 is used to seal the end of the motor structure to protect the internal components; the machine inlet 10 is used to introduce external coolant into the circulating water circuit inside the air compressor; and the machine outlet 27 is used to discharge the coolant after internal circulating heat exchange to the outside of the equipment.

[0039] Please refer to Figure 14(a), which is a schematic diagram of the flow and heat dissipation of coolant from the connecting hole 19 in the stationary plate to the interior of the moving plate. Coolant enters the inlet reservoir 17 from the main unit inlet 10, flows through the eccentric pin inlet hole below, and enters the lower eccentric pin assembly 20. The coolant flows into the interior of the moving plate body 12 through the eccentric pin hole 36 inside the eccentric pin assembly 20. In this flow path, the coolant flows in and out through the connecting grooves 22 distributed at multiple ends of the partition plate 53. The coolant passes through the connecting hole 19 in the middle of the stationary plate body 2 and flows inside the moving plate body 12. Under the guidance of the baffle ribs 35, the flow path is changed, absorbing the heat generated by the operation of the components.

[0040] Please refer to Figure 14(b), which is a schematic diagram of the overall eccentric pin assembly 20 and the flow of coolant into the stationary disk. The coolant, having absorbed heat inside the moving disk body 12, flows upwards, passing through the upper eccentric pin assembly 20 and the eccentric pin hole 36, carrying away the mechanical friction heat generated by the eccentric pin assembly 20 itself and the third anti-rotation bearing 38. After flowing out from the eccentric pin outlet hole, the coolant is accelerated and ejected through the micro-expansion nozzle 8 outside the limiting cover plate 18, flowing towards the surface of the high thermal conductivity micro-pillar array 9 below. The coolant contacts and exchanges heat with the high thermal conductivity micro-pillar array 9, absorbing the heat conducted from the side of the stationary disk body 2, and flowing into the stationary disk water storage tank 16 inside the stationary disk body 2.

[0041] Please refer to Figure 14(c), which is a schematic diagram of the flow and heat dissipation of coolant to the motor section from the bypass direct-connect throttling assembly. The coolant inside the stationary plate water tank 16 enters the direct-connect channel 11 through the direct-connect water inlet 15 at the top of the stationary plate body 2. The memory spring 41 inside the bypass direct-connect throttling assembly expands and deforms due to heat, pushing the limiting groove 42 to slide along the fixed rod 43, causing the closing valve block 45 to open the channel, allowing the coolant to flow into the internal cavity of the motor front end cover 4 along the direct-connect channel 11. Inside the motor front end cover 4, the coolant flows through the ceramic ring 46 and the centrifugal blade 26 area, where it undergoes convective heat exchange at the motor front end under the agitation of the centrifugal blade 26. Simultaneously, it flows past the outer side of the corrugated cooling water jacket 30 to absorb heat transferred from the internal air circulation. The coolant, having completed heat exchange, flows to the bottom channel and is discharged to the outside through the overall outlet 27.

[0042] Please see the appendix Figure 15 , Figure 15This is a schematic diagram of the internal compressed gas flow. When the air compressor is working, external air enters the interior of the stationary disc body 2 through the two air inlets 7. The first anti-rotation bearing 14 restricts rotation, and the eccentric pin assembly 20 connected to the inner side of the partition plate 53 operates and transmits eccentric rotational motion, driving the scroll plate 13 to perform translational rotational motion. The air entering the chamber is continuously compressed and performs work within the intermeshing space of the scroll plates 13, generating heat. The compressed airflow carrying heat gathers at the top center of the stationary disc body 2 and is discharged to the outside through the exhaust port 6.

[0043] Working Principle: The oil-free scroll air compressor operates via the motor assembly 48, which drives the ceramic heat insulation rod 33 and the motor bearing 52 to rotate. The first anti-rotation bearing 14 restricts the rotation of the moving disc and maintains its translational rotation. Simultaneously, it drives the eccentric pin assembly 20 connected to the inner side of the partition plate 53 to rotate, transmitting the eccentric rotational motion, which in turn drives the internal scroll plate 13 to perform translational rotational motion, compressing the gas entering the stationary disc body 2. The scroll plate 13 and the moving disc body 12 are directly water-cooled for cooling, while the motor assembly 48 is indirectly cooled by isolating the circulating air. Inside the motor chamber, the isolation ventilation and heat dissipation assembly and the turbulence heat dissipation assembly operate synchronously with the main shaft, realizing the closed circulation of internal air and heat transfer.

[0044] During gas compression and main water cooling, external cold air enters the stationary disk body 2 through two air inlets 7. The gas is compressed and generates heat through the meshing scroll plates 13. The heated compressed air is then discharged to the outside of the entire system through the exhaust port 6. Coolant enters the inlet reservoir 17 from the main inlet 10, enters the eccentric pin assembly 20 through the lower eccentric pin inlet hole, and flows into the internal area of ​​the moving disk body 12 through the eccentric pin hole 36. The partition plate 53 separates the internal components. Coolant enters the flow channel through the connecting groove 22 at its end and passes through the connecting hole 19, guiding the coolant through the heat-generating core area for heat exchange. The coolant's flow path is altered by the water-blocking ribs 35, which use the partition plate 53 as a structural support, absorbing the heat generated by the operation of the moving disk body 12 and the scroll plates 13. Subsequently, the coolant flows upward through the upper eccentric pin outlet hole, exits through the micro-expansion nozzle 8, and is guided to the lower high thermal conductivity micro-column array 9. The high thermal conductivity micro-pillar array 9 increases the surface contact area to improve heat exchange efficiency. After the coolant flows into the static plate water tank 16, it flows into the interior of the motor front cover 4 through the two bypass direct-connect throttling components at the top, and finally flows out to the outside through the machine outlet 27 along the bottom flow channel.

[0045] When there are temperature differences in different areas of the equipment, the bypass direct-connect throttling component mechanically regulates the water flow. When the temperature at the front end of the motor assembly 48 rises, heat is conducted to the inside of the direct-connect channel 11. The memory spring 41 elongates and deforms due to heat, pushing the limiting groove 42 to slide along the surface of the fixed rod 43, causing the closing valve block 45 to move away from the side of the limiting ring 44, thereby increasing the flow cross-sectional area of ​​the channel. At this time, the coolant at the direct-connect water inlet 15 flows directly into the inside of the motor front end cover 4 through the direct-connect channel 11 for cooling. When the temperature in this area drops, the memory spring 41 contracts and resets, pulling the closing valve block 45 to reduce the flow channel cross-sectional area.

[0046] To address the heat transfer from the moving and stationary discs to the motor side, the turbulent heat dissipation assembly physically blocks and facilitates fluid heat exchange. The ceramic heat shield 33 at the end of the motor bearing 52 and the outer ceramic ring 46 utilize the low thermal conductivity of ceramic materials to axially cut off the heat transfer path. Coolant flowing into the motor front cover 4 enters the water collection and splashing trough 47 inside the ceramic ring 46. As the motor bearing 52 rotates, centrifugal force is generated, throwing the liquid outwards to remove surface heat. Simultaneously, the centrifugal blades 26 on the side of the motor bearing 52 rotate and agitate the surrounding coolant, enhancing the convective heat transfer effect; the funnel-shaped waterproof ring 51 directionally blocks the fluid, preventing coolant from entering the first anti-rotation bearing 14.

[0047] The sealed chamber containing the motor assembly 48 is cooled by air circulation through an isolation ventilation and heat dissipation assembly. When the motor assembly 48 is running, it drives the centrifugal guide vanes 49 on the outside to rotate, causing airflow inside the motor chamber. After absorbing heat from the surface of the motor assembly 48, the air passes through the oblique holes 24 at both ends of the frame plate 23 and enters the inner side of the corrugated cooling water jacket 30. The heated air comes into contact with the inner wall of the corrugated cooling water jacket 30 and exchanges heat, transferring heat to the coolant inside the jacket. The cooled air then flows downward through the ventilation holes 50 into the ventilation frame 28, and flows back into the motor chamber along the ventilation pipe 29, forming an air circulation. During this process, the waterproof isolation plate 25 and the waterproof annular plate 31 prevent external coolant from seeping in, maintaining the dry state of the motor chamber.

Claims

1. An oil-free scroll air compressor with simultaneous cooling of multiple heat sources, characterized in that, include: The protective frame (3) has a stationary disc body (2) and a motor front end cover (4) fixedly connected to its two sides respectively. The stationary disc body (2) and the protective frame (3) are provided with two bypass direct-connection throttling components. The stationary disc body (2) is fixedly connected to a moving disc body (12) on the side near the protective frame (3). The moving disc body (12) is provided with a flow heat dissipation component inside. The motor front end cover (4) is provided with a turbulence heat dissipation component at one end near the protective frame (3). The motor front end cover (4) is provided with an isolation ventilation heat dissipation component at the other end. The isolation ventilation and heat dissipation assembly includes a frame plate (23), which is fixedly connected to the inner side of the front end cover (4) of the motor. A waterproof isolation plate (25) is fixedly connected to the inner side of the frame plate (23). Multiple oblique holes (24) are opened inside both ends of the frame plate (23). A waterproof annular plate (31) is fixedly connected to the side of the waterproof isolation plate (25). A corrugated cooling water jacket (30) is fixedly connected to the side of the waterproof annular plate (31). The other end of the corrugated cooling water jacket (30) A circular cover plate (32) is fixedly connected to the inner side of the front end cover (4) of the motor. A ventilation frame (28) is fixedly connected to the bottom of the wave-shaped cooling water jacket (30). Multiple ventilation holes (50) are opened at the bottom of the wave-shaped cooling water jacket (30). The multiple ventilation holes (50) are connected to the ventilation frame (28). A ventilation pipe (29) is fixedly connected to the bottom of the ventilation frame (28). The ventilation pipe (29) is fixedly connected to the inner side of the front end cover (4) of the motor.

2. The oil-free scroll air compressor with simultaneous cooling of multiple heat sources according to claim 1, characterized in that, The isolation ventilation and heat dissipation assembly also includes a motor bearing (52), which is rotatably connected to the inner side of the waterproof isolation plate (25). A ceramic heat insulation rod (33) is fixedly connected to the side of the motor bearing (52), which is rotatably connected to the inner side of the motor front end cover (4). A motor assembly (48) and multiple centrifugal guide vanes (49) are fixedly connected to the outer side of the ceramic heat insulation rod (33). The motor assembly (48) and multiple centrifugal guide vanes (49) are all located inside the wave-shaped cooling water jacket (30).

3. The oil-free scroll air compressor with simultaneous cooling of multiple heat sources according to claim 2, characterized in that, The agitation and heat dissipation assembly includes a ceramic ring (46), which is fixedly connected to the outside of the motor bearing (52). Multiple water collection and splashing grooves (47) are provided on the inner side of the ceramic ring (46). A ceramic heat insulation rod (33) is fixedly connected to one end of the motor bearing (52) away from the motor assembly (48). Multiple centrifugal blades (26) are fixedly connected to the side of the motor bearing (52). A first anti-rotation bearing (14) is provided between the motor bearing (52) and the protective frame (3). A bucket-shaped waterproof ring (51) is fixedly connected to the side of the first anti-rotation bearing (14) near the multiple centrifugal blades (26).

4. The oil-free scroll air compressor with simultaneous cooling of multiple heat sources according to claim 1, characterized in that, The bypass direct-connect throttling assembly includes a direct-connect channel (11), which is fixedly connected to the inner side of the protective frame (3) and the motor front end cover (4). A direct-connect water inlet (15) is provided on the inner side of the stationary disc body (2). One end of the direct-connect channel (11) is fixedly connected to the side of the direct-connect water inlet (15). A fixed bottom ring (40) is fixedly connected to the inner side of the direct-connect channel (11). A fixed rod (43) is fixedly connected to the inner side of the fixed bottom ring (40). A limit groove (42) is slidably connected to the outer side of the end of the fixed rod (43). A memory spring (41) is provided on the outer side of the fixed bottom ring (40). A closing valve block (45) is fixedly connected to the outer side of the limit groove (42). A limit ring (44) is fixedly connected to the middle of the direct-connect channel (11). The closing valve block (45) is located on the side of the limit ring (44).

5. The oil-free scroll air compressor with simultaneous cooling of multiple heat sources according to claim 3, characterized in that, The heat dissipation assembly includes two vortex disks (13), which are disposed on the side of the stationary disk body (2). A partition plate (53) is provided on the side of the two vortex disks (13) away from the stationary disk body (2). Multiple water-blocking ribs (35) are distributed around the other side of the partition plate (53). Multiple ends of the partition plate (53) are provided with connecting grooves (22).

6. The oil-free scroll air compressor with simultaneous cooling of multiple heat sources according to claim 5, characterized in that, The heat dissipation assembly also includes a moving plate body (12), which is fixedly connected to the outside of the stationary plate body (2). A moving plate cover plate (21) is fixedly connected to one end of the moving plate body (12) away from the stationary plate body (2). A second anti-rotation bearing (34) is provided between the inner side of the first anti-rotation bearing (14) and the outer side of the ceramic heat insulation rod (33). A plurality of water-blocking ribs (35) are fixedly connected around the outer side of the second anti-rotation bearing (34). A connecting hole (19) is provided in the middle of the stationary plate body (2), which connects the interior of the stationary plate body (2) and the middle of the two vortex plates (13).

7. The oil-free scroll air compressor with simultaneous cooling of multiple heat sources according to claim 5, characterized in that, The partition plate (53) has multiple eccentric pin assemblies (20) fixedly connected to the inner sides of its ends. Multiple third anti-rotation bearings (38) are provided in the middle of the multiple eccentric pin assemblies (20). Water seal assemblies (39) are fixedly connected to both ends of the multiple eccentric pin assemblies (20). An eccentric pin locking nut (37) is fixedly connected to the side of one of the third anti-rotation bearings (38). Eccentric pin holes (36) are opened on the inner sides of the multiple eccentric pin assemblies (20).

8. The oil-free scroll air compressor with simultaneous cooling of multiple heat sources according to claim 7, characterized in that, The interior of the stationary disc body (2) has two eccentric pin water inlets and two eccentric pin water outlets. Limiting covers (18) are fixedly connected to the outside of the two eccentric pin water inlets and the two eccentric pin water outlets. The two eccentric pin water inlets are located at the lower part of the stationary disc body (2), and the two eccentric pin water outlets are located at the upper part of the stationary disc body (2). One end of the plurality of eccentric pin assemblies (20) is fixedly connected to the inner side of the plurality of limiting covers (18). The outer side of the limiting covers (18) fixedly connected to the outside of the two eccentric pin water outlets is fixedly connected to a micro-expansion nozzle (8). A water inlet storage tank (17) is provided at the bottom of the stationary disc body (2). A high thermal conductivity micro-column array (9) is fixedly connected to the outside of the water inlet storage tank (17). The outlet angle of the two micro-expansion nozzles (8) corresponds to the high thermal conductivity micro-column array (9).

9. The oil-free scroll air compressor with simultaneous cooling of multiple heat sources according to claim 1, characterized in that, The static plate body (2) is provided with a static plate water storage tank (16) inside. The static plate body (2) is provided with an exhaust port (6) in the middle of the top. The static plate body (2) is provided with air inlets (7) at both ends of the top. The exhaust port (6) and the two air inlets (7) are connected to the interior of the static plate body (2).

10. The oil-free scroll air compressor with simultaneous cooling of multiple heat sources according to claim 1, characterized in that, The side of the static plate body (2) is fixedly connected to the static plate cover plate (1), the side of the motor front cover (4) is fixedly connected to the motor rear cover plate (5), the bottom inner side of the static plate body (2) is fixedly connected to the whole machine water inlet (10), and the bottom inner side of the motor rear cover plate (5) is fixedly connected to the whole machine water outlet (27).

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