Central air conditioner compressor with magnetic suspension structure
By introducing a magnetic levitation structure into the central air conditioning compressor, and using a magnetic ring and a magnetic thrust component to achieve shaft levitation, the problem of wear on the rotating part is solved, the lifespan and stability of the equipment are improved, and noise pollution is reduced.
Patent Information
- Application Number
- CN202511937559.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-02-10
AI Technical Summary
When existing central air conditioning compressors operate for extended periods, the rotation of the central shaft generates a large amount of heat, leading to wear, which affects the equipment's lifespan and causes noise pollution.
The magnetic levitation structure is adopted, and the centripetal thrust is generated by the magnetic ring and the magnetic reverse thrust component to keep the shaft in a suspended state, avoiding wear at the shaft support position. The positioning mechanism and one-way exhaust unit ensure the stability of the shaft and the flow of refrigerant.
It effectively improves the service life of the equipment, reduces wear and noise pollution, and enhances the practicality of the equipment.
Smart Images
Figure CN121497624A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of air conditioning equipment technology, and in particular to a central air conditioning compressor with a magnetic levitation structure. Background Technology
[0002] The central air conditioning compressor plays the role of compressing and driving the refrigerant in the central air conditioning refrigerant circuit. The central air conditioning compressor draws the refrigerant from the low-pressure area, compresses it, and sends it to the high-pressure area for cooling and condensation. The heat is then dissipated into the air through the heat sink, and the refrigerant changes from a gaseous state to a liquid state. When existing air conditioning compressors work for a long time, the rotation position of the central shaft will generate a lot of heat, and the bearing position will wear, which is not conducive to improving the service life of the equipment. In addition, this wear will also generate corresponding noise pollution.
[0003] Based on this, a central air conditioning compressor with a magnetic levitation structure is now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention
[0004] The purpose of this invention is to provide a central air conditioning compressor with a magnetic levitation structure, which solves the problem of easy wear of the rotating parts in the prior art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A central air conditioning compressor with a magnetic levitation structure includes a housing, a second end cap at one open end of the housing, a first end cap at the other open end of the housing, a rotating shaft inside the housing connected to the housing via a levitation structure, positioning mechanisms at both ends of the housing for initially locking the position of the rotating shaft, a compression component inside the second end cap that is driven by the rotating shaft to compress refrigerant, and a refrigerant inlet pipe on the first end cap for refrigerant entry.
[0006] Based on the above technical solutions, the present invention also provides the following optional technical solutions: In one alternative: a rotor is provided at the center of the rotating shaft, and a stator that matches the rotor is fixedly provided on the inner wall of the housing.
[0007] In one alternative embodiment: the compression component includes a drive disk connected to the shaft end, a pin is provided at an eccentric position at the other end of the drive disk, a first slider is fixedly provided at the end of the pin, a first turntable is provided parallel to one side of the drive disk, a first groove is provided at the lower diameter of the first turntable, the first groove slides in cooperation with the first slider, a second turntable is provided parallel to the upper end of the first turntable, two second grooves are symmetrically provided at the lower diameter of the second turntable, two second sliders are symmetrically provided at the upper end of the first turntable, which slide in cooperation with the second grooves, the cross sections of the second slider, the second groove, the first groove and the first slider are all trapezoidal to prevent them from falling off during sliding, a movable compression ring is fixedly provided at the upper end of the second turntable, a fixed compression ring is provided on the outside of the movable compression ring, the upper end of the fixed compression ring is fixedly connected to the inner wall of the second end cover, and a one-way exhaust unit is also provided at the center of the second end cover.
[0008] In one alternative embodiment: the one-way exhaust unit includes a refrigerant outlet pipe located at the center of the second end cap, an exhaust channel is provided inside the refrigerant outlet pipe, the outer end of the exhaust channel is connected to the one-way exhaust stack, the diameter of the one-way exhaust stack is larger than the diameter of the exhaust channel, a sealing pressure plate for sealing the end of the exhaust channel is slidably provided in the one-way exhaust stack, the sealing pressure plate is slidably provided on the sealing guide rod, the other end of the sealing guide rod is connected to the bottom of the one-way exhaust stack, the sealing pressure plate and the end of the sealing guide rod are connected by a sealing spring, and a sealing ring is provided between the sealing pressure plate and the one-way exhaust stack.
[0009] In one alternative embodiment: the positioning mechanism includes a stepped shaft disposed at the end of the rotating shaft, with an auxiliary positioning ring fitted at each stepped shaft position. Multiple positioning side rods are arrayed on the outer side of the auxiliary positioning ring, and the outer side of the positioning side rods is connected to a mounting ring. The mounting ring is connected to the end of the housing by bolts. The diameter of the central through hole of the auxiliary positioning ring is larger than the diameter of the positioning side rods but smaller than the diameter of the rotating shaft. The end of the auxiliary positioning ring is provided with an end face bearing that matches the end of the rotating shaft.
[0010] In one alternative: the suspension structure includes magnetic rings disposed at both ends of the rotating shaft, each magnetic ring having multiple permanent magnet blocks embedded thereon, the magnetic poles of the multiple permanent magnet blocks being arranged in the same direction, and the inner wall of the outer shell having a magnetic repulsion component that generates a repulsive force on the outer side of the magnetic rings.
[0011] In one alternative: the magnetic thrust component includes a positioning outer ring disposed on the inner wall of the housing, the positioning outer ring being connected to a positioning inner ring via multiple connecting pieces, and multiple electromagnets being arrayed on the inner wall of the positioning inner ring.
[0012] In one alternative embodiment, the magnetic thrust component further includes multiple distance sensors disposed on the inner wall of the positioning inner ring for detecting the distance to the outer wall of the magnetic ring.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention constructs a magnetic structure to generate a centripetal thrust on the outer side of the rotating shaft, thereby keeping the rotating shaft in a suspended state. This avoids excessive wear at the shaft support position, effectively improves the service life of the equipment, and is highly practical. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of one side of the invention.
[0015] Figure 2 This is a schematic diagram of the other side of the structure of the present invention.
[0016] Figure 3 This is a schematic diagram of the internal structure of the present invention.
[0017] Figure 4 This is a schematic diagram of the internal structure on the other side of the present invention.
[0018] Figure 5 This is a schematic diagram of the unidirectional exhaust stack structure of the present invention.
[0019] Figure 6 This is a schematic diagram of the fixed compression ring and the movable compression ring structure of the present invention.
[0020] Figure 7 This is a schematic diagram of the lower structure of the first turntable of the present invention.
[0021] Figure 8 This is a schematic diagram of the upper structure of the first turntable of the present invention.
[0022] Reference numerals in the attached drawings: outer casing 100, first end cap 102, second end cap 101, refrigerant inlet pipe 103, refrigerant outlet pipe 104, one-way exhaust pipe 105; Compression component 300, drive disk 301, first slider 302, first turntable 303, first slide groove 304, second turntable 305, fixed compression ring 306, movable compression ring 307, second slide groove 308, second slider 309; Shaft 400, rotor 401, stator 402; Magnetic ring 500, positioning outer ring 501, positioning inner ring 502, electromagnet 503, auxiliary positioning ring 504, stepped shaft 505, positioning side rod 506, mounting ring 507; Exhaust passage 601, sealing spring 602, sealing guide rod 603, sealing pressure plate 604. Detailed Implementation
[0023] The technical solutions of 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.
[0024] like Figures 1-8 As shown, this embodiment of the invention provides a central air conditioning compressor with a magnetic levitation structure, including a housing 100. A second end cover 101 is provided at one open end of the housing 100, and a first end cover 102 is provided at the other open end of the housing 100. A rotating shaft 400 is provided inside the housing 100. The rotating shaft 400 is connected to the housing 100 through a levitation structure. Positioning mechanisms for initially locking the position of the rotating shaft 400 are provided at both ends of the housing 100. A compression component 300 is provided inside the second end cover 101 and is drivenly connected to the rotating shaft 400. The compression component 300 compresses the refrigerant. A refrigerant inlet pipe 103 for the refrigerant to enter is provided on the first end cover 102. The rotating shaft 400 is provided with a rotor 401 at its center, and the inner wall of the outer shell 100 is fixed with a stator 402 that matches the rotor 401. The rotor 401 and the stator 402 work together to drive the rotating shaft 400 to rotate rapidly. The compression component 300 includes a drive disk 301 connected to the shaft end of a rotating shaft 400. A pin is eccentrically positioned at the other end of the drive disk 301, and a first slider 302 is fixedly mounted at the end of the pin. A first turntable 303 is parallel to one side of the drive disk 301. A first groove 304 is formed at the lower diameter of the first turntable 303, and the first groove 304 slides in cooperation with the first slider 302. A second turntable 305 is parallel to the upper end of the first turntable 303. Two second grooves 308 are symmetrically arranged at the lower diameter of the second turntable 305. Two second sliders 309 are symmetrically arranged at the upper end of the first turntable 303, sliding in cooperation with the second grooves 308. The second sliders 309, the second grooves 308, the first groove 304, and... The cross-section of the first slider 302 is trapezoidal to prevent it from falling off during sliding. A movable compression ring 307 is fixedly provided on the upper end of the second turntable 305. A fixed compression ring 306 is provided on the outside of the movable compression ring 307. The upper end of the fixed compression ring 306 is fixedly connected to the inner wall of the second end cover 101. A one-way exhaust unit is also provided at the center of the second end cover 101. During operation, the drive disk 301 is driven to rotate eccentrically through the rotating shaft 400. The pin at the upper end of the drive disk 301 will drive the first turntable 303 to rotate eccentrically through the first slider 302. The second turntable 305 at the upper end of the first turntable 303 will also shake under the action of centrifugal force. The movable compression ring 307 at the upper end of the second turntable 305 will shake inside the fixed compression ring 306, thereby completing the compression of the refrigerant. The one-way exhaust unit includes a refrigerant outlet pipe 104 located at the center of the second end cover 101. An exhaust channel 601 is provided inside the refrigerant outlet pipe 104. The outer end of the exhaust channel 601 communicates with a one-way exhaust stack 105. The diameter of the one-way exhaust stack 105 is larger than the diameter of the exhaust channel 601. A sealing pressure plate 604 for sealing the end of the exhaust channel 601 is slidably disposed within the one-way exhaust stack 105. The sealing pressure plate 604 is slidably disposed on a sealing guide rod 603. The other end of rod 603 is connected to the bottom of one-way exhaust pipe 105. The sealing plate 604 is connected to the end of sealing guide rod 603 through sealing spring 602. A sealing ring is provided between sealing plate 604 and one-way exhaust pipe 105. Under the tight pressure of sealing spring 602, sealing plate 604 will block the end of exhaust channel 601. Only the compressed refrigerant can push sealing plate 604 open, but the refrigerant cannot enter exhaust channel 601 from one-way exhaust pipe 105, thus realizing one-way flow. The positioning mechanism includes a stepped shaft 505 disposed at the end of the rotating shaft 400. Each stepped shaft 505 is fitted with an auxiliary positioning ring 504. Multiple positioning side rods 506 are arrayed on the outer side of the auxiliary positioning ring 504. The outer side of the positioning side rods 506 is connected to a mounting ring 507. The mounting ring 507 is connected to the end of the outer shell 100 by bolts. The diameter of the central through hole of the auxiliary positioning ring 504 is larger than the diameter of the positioning side rods 506 but smaller than the diameter of the rotating shaft 400. The end of the auxiliary positioning ring 504 is provided with an end face bearing that matches the end of the rotating shaft 400. This can generate thrust on both sides of the rotating shaft 400, thereby initially locking the position of the rotating shaft 400 and preventing the axis of the rotating shaft 400 from sliding and losing its magnetic levitation position. The suspension structure includes magnetic rings 500 at both ends of the rotating shaft 400. Each magnetic ring 500 is embedded with multiple permanent magnet blocks. The magnetic poles of the multiple permanent magnet blocks are arranged in the same direction. The inner wall of the outer shell 100 is provided with a magnetic repulsion component that generates a repulsive force on the outside of the magnetic ring 500. The magnetic repulsion component makes the magnetic ring 500 suspended, thereby eliminating frictional loss. The magnetic thrust component includes a positioning outer ring 501 disposed on the inner wall of the outer casing 100. The positioning outer ring 501 is connected to a positioning inner ring 502 via multiple connecting pieces. Multiple electromagnets 503 are arrayed on the inner wall of the positioning inner ring 502. Magnetic force is generated by energizing the electromagnets 503, thereby creating multiple thrusts towards the center of the rotation axis on the outer side of the magnetic ring 500, keeping the magnetic ring 500 in a suspended state and thus avoiding frictional forces generated during rotation. The magnetic push-back component also includes multiple distance sensors disposed on the inner wall of the positioning inner ring 502 for detecting the distance to the outer wall of the magnetic ring 500. This allows the position of the magnetic ring 500 to be detected from multiple points, thereby providing the corresponding magnetic force to keep the magnetic ring 500 in a suspended state. The electromagnet 503 and the distance sensors are electrically connected to the control panel, forming a negative feedback mechanism for adjustment.
[0025] Working principle: In actual use, the electromagnet 503 is energized to generate magnetic force, which creates multiple thrusts on the outer side of the magnetic ring 500 towards the center of the rotating shaft, keeping the magnetic ring 500 in a suspended state. This avoids friction caused by rotation. The position of the magnetic ring 500 can be detected at multiple points to provide the corresponding magnetic force, keeping the magnetic ring 500 in a suspended state. During operation, the rotating shaft 400 drives the drive disk 301 to rotate eccentrically. The pin at the upper end of the drive disk 301 drives the first rotating disk 303 to rotate eccentrically via the first slider 302. The second turntable 305 at the top of the first turntable 303 will also sway under the action of centrifugal force. The movable compression ring 307 at the top of the second turntable 305 will sway inside the fixed compression ring 306, thereby completing the compression of the refrigerant. The compressed refrigerant will be discharged along the refrigerant outlet pipe 104. Under the tight pressure of the sealing spring 602, the sealing plate 604 will block the end of the exhaust channel 601. Only the compressed refrigerant can push open the sealing plate 604, but the refrigerant cannot enter the exhaust channel 601 from the one-way exhaust pipe 105, thereby realizing one-way flow and avoiding refrigerant backflow.
[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A central air conditioning compressor with a magnetic levitation structure, comprising a housing (100), wherein a second end cap (101) is fitted at one open end of the housing (100), and a first end cap (102) is provided at the other open end of the housing (100), characterized in that: The housing (100) has a rotating shaft (400) inside. The rotating shaft (400) is connected to the housing (100) through a suspension structure. The housing (100) has positioning mechanisms at both ends for initially locking the position of the rotating shaft (400). The second end cover (101) has a compression component (300) inside that is connected to the rotating shaft (400) for compression. The compression component (300) compresses the refrigerant. The first end cover (102) has a refrigerant inlet pipe (103) for refrigerant to enter.
2. The central air conditioning compressor with a magnetic levitation structure according to claim 1, characterized in that, The rotating shaft (400) has a rotor (401) at its center, and the inner wall of the outer shell (100) is fixed with a stator (402) that matches the rotor (401).
3. The central air conditioning compressor with a magnetic levitation structure according to claim 1, characterized in that, The compression component (300) includes a drive disk (301) connected to the shaft end of a rotating shaft (400). A pin is eccentrically positioned at the other end of the drive disk (301), and a first slider (302) is fixedly attached to the end of the pin. A first turntable (303) is parallel to one side of the drive disk (301). A first groove (304) is formed at the lower diameter of the first turntable (303), and the first groove (304) slides in cooperation with the first slider (302). A second turntable (305) is parallel to the upper end of the first turntable (303), and two second grooves (304) are symmetrically arranged at the lower diameter of the second turntable (305). 08), the upper end of the first turntable (303) is symmetrically provided with two second sliders (309) that slide in cooperation with the second slide groove (308). The cross sections of the second slider (309), the second slide groove (308), the first slide groove (304) and the first slider (302) are all trapezoidal to prevent them from falling off during sliding. The upper end of the second turntable (305) is fixedly provided with a movable compression ring (307). A fixed compression ring (306) is provided on the outside of the movable compression ring (307). The upper end of the fixed compression ring (306) is fixedly connected to the inner wall of the second end cover (101). A one-way exhaust unit is also provided at the center of the second end cover (101).
4. The central air conditioning compressor with a magnetic levitation structure according to claim 13, characterized in that, The one-way exhaust unit includes a refrigerant outlet pipe (104) located at the center of the second end cap (101). An exhaust channel (601) is provided inside the refrigerant outlet pipe (104). The outer end of the exhaust channel (601) is connected to a one-way exhaust cylinder (105). The diameter of the one-way exhaust cylinder (105) is larger than the diameter of the exhaust channel (601). A sealing plate (604) for sealing the end of the exhaust channel (601) is slidably provided in the one-way exhaust cylinder (105). The sealing plate (604) is slidably provided on the sealing guide rod (603). The other end of the sealing guide rod (603) is connected to the bottom of the one-way exhaust cylinder (105). The sealing plate (604) and the end of the sealing guide rod (603) are connected by a sealing spring (602). A sealing ring is provided between the sealing plate (604) and the one-way exhaust cylinder (105).
5. The central air conditioning compressor with a magnetic levitation structure according to claim 1, characterized in that, The positioning mechanism includes a stepped shaft (505) disposed at the end of the rotating shaft (400), and an auxiliary positioning ring (504) is provided at each position of the stepped shaft (505). Multiple positioning side rods (506) are arranged in an array on the outer side of the auxiliary positioning ring (504). The outer side of the positioning side rod (506) is connected to the mounting ring (507). The mounting ring (507) is connected to the end of the housing (100) by bolts. The diameter of the central through hole of the auxiliary positioning ring (504) is larger than the diameter of the positioning side rod (506) and smaller than the diameter of the rotating shaft (400). The end of the auxiliary positioning ring (504) is provided with an end face bearing that matches the end of the rotating shaft (400).
6. The central air conditioning compressor with a magnetic levitation structure according to claim 1, characterized in that, The suspension structure includes magnetic rings (500) at both ends of the rotating shaft (400). Each magnetic ring (500) is embedded with multiple permanent magnet blocks. The magnetic poles of the multiple permanent magnet blocks are arranged in the same direction. The inner wall of the outer shell (100) is provided with a magnetic repulsion component that generates a repulsive force on the outside of the magnetic ring (500).
7. The central air conditioning compressor with a magnetic levitation structure according to claim 1, characterized in that, The magnetic thrust component includes a positioning outer ring (501) disposed on the inner wall of the outer shell (100). The positioning outer ring (501) is connected to the positioning inner ring (502) through multiple connecting pieces. Multiple electromagnets (503) are arrayed on the inner wall of the positioning inner ring (502).
8. The central air conditioning compressor with a magnetic levitation structure according to claim 6, characterized in that, The magnetic thrust device also includes multiple distance sensors disposed on the inner wall of the positioning inner ring (502) for detecting the distance to the outer wall of the magnetic ring (500).