Vortex air compressor and oxygen generator
By introducing a separation gap between the synchronous disc and the moving scroll and setting the main bearing in the scroll air compressor, the problems of low heat dissipation efficiency and high machining accuracy of the main bearing are solved, achieving the effects of noise reduction and service life extension.
Patent Information
- Application Number
- CN202423098980.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing scroll air compressors suffer from problems such as low heat dissipation efficiency, high machining precision requirements, and increased noise in their main bearing mounting methods, which affect their service life and noise level.
A separation gap is set between the synchronous disc and the moving scroll, and a main bearing is set on the synchronous disc. The synchronous disc is rotated by a motor-driven eccentric shaft, which avoids heat being directly transferred to the main bearing, increases the heat dissipation area of the moving scroll, and reduces the requirements for machining accuracy.
It improves the service life of the main bearing and moving scroll, reduces noise, enhances heat dissipation efficiency, reduces production difficulty and cost, and extends the service life of the scroll air compressor.
Smart Images
Figure CN223498138U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of air compressors, specifically relating to a scroll air compressor and an oxygen generator. Background Technology
[0002] Scroll air compressors have advantages such as low noise, low vibration, and high efficiency, and are increasingly used in oil-free environmental air compression systems; currently, oil-free scroll air compressors are commonly used in the oxygen production field.
[0003] The scroll air compressor includes a scroll assembly and a drive assembly. The scroll assembly includes a stationary scroll and a moving scroll that cooperate with each other. The moving scroll is provided with a main bearing. The drive assembly includes an eccentric shaft with one end passing through the main bearing and a motor for driving the eccentric shaft to rotate, so that the moving scroll rotates relative to the stationary scroll under the drive of the motor to generate pressurized air.
[0004] Currently, there are two installation methods for the main bearing. One method involves installing the main bearing on the back of the center area of the moving scroll, with the eccentric shaft directly driving the scroll to rotate under the motor's power. This method places the main bearing close to the center of the moving scroll, reducing its heat dissipation area and affecting its cooling efficiency. Simultaneously, heat from the moving scroll is directly transferred to the main bearing, thus impacting the lifespan of both the scroll and the main bearing. The other method involves making the main bearing housing a separate component, with heat dissipation fins on the back of the moving scroll. The main bearing housing fits snugly against the heat dissipation fins and is secured with screws. The eccentric shaft drives the main bearing housing to rotate under the motor's power. The installation method, which uses the main bearing housing to drive the rotating scroll, improves the heat dissipation of the rotating scroll. However, it places high demands on the machining precision of both the main bearing housing and the rotating scroll. If the flatness of the mating surfaces of the main bearing housing and the rotating scroll is not up to standard, the rotating scroll will deform when it is fixed with screws. Furthermore, due to the increased cumulative tolerance, it is difficult to guarantee the position of the rotating scroll profile relative to the bearing hole on the main bearing housing. This can easily lead to friction between the rotating scroll and the stationary scroll during the operation of the scroll air compressor, thereby increasing the noise generated during operation and affecting the service life of the scroll air compressor. Utility Model Content
[0005] This application provides a scroll air compressor to reduce the noise generated during operation and to improve the service life of the scroll air compressor.
[0006] The technical solution adopted in this application is as follows:
[0007] A scroll air compressor, comprising:
[0008] A turbine assembly, the turbine assembly including a moving scroll and a stationary scroll that cooperate with each other, the moving scroll having a back side away from the stationary scroll;
[0009] A synchronizing disk is connected to the moving scroll and is located on the opposite side of the moving scroll. A separation gap is provided between the synchronizing disk and the opposite side of the moving scroll. The synchronizing disk includes a main bearing hole located at the center, and a main bearing is provided in the main bearing hole.
[0010] The drive mechanism includes an interconnected motor and an eccentric shaft, one end of which passes through the main bearing; the motor drives the eccentric shaft to move the synchronous disk, which in turn drives the moving scroll disk to move.
[0011] By adopting the above technical solution, when the scroll air compressor of this application is working, the motor drives the eccentric shaft to rotate, and the eccentric shaft drives the synchronous disk to rotate under the action of the main bearing. Since the synchronous disk is connected to the moving scroll, the synchronous disk drives the moving scroll to rotate, so that the moving scroll and the stationary scroll rotate relative to each other and generate pressurized air under their mutual cooperation.
[0012] Because a separation gap is provided between the synchronous disc and the moving scroll, and the main bearing is located on the synchronous disc, the main bearing and the moving scroll are spaced apart. This prevents the heat from the moving scroll from being directly transferred to the main bearing, thus significantly reducing the temperature of the main bearing and extending its service life. Compared to directly mounting the main bearing on the moving scroll, this increases the heat dissipation area of the moving scroll, improving its heat dissipation efficiency and extending its service life. Simultaneously, the separation gap reduces the requirements for the flatness of the mating surfaces of the moving scroll and the synchronous disc, lowering the machining precision requirements and reducing the production difficulty and cost of the moving scroll and the synchronous disc. Furthermore, it avoids deformation of the moving scroll when the synchronous disc is installed on it, ensuring the correct position of the moving scroll profile relative to the main bearing hole. This prevents rubbing between the moving and stationary scrolls during operation of the scroll air compressor, further reducing noise and extending its service life.
[0013] Optionally, the synchronous disk has at least two first auxiliary bearing holes, and a first auxiliary bearing is installed in the first auxiliary bearing hole; the moving scroll has at least two second auxiliary bearing holes, and a second auxiliary bearing is installed in the second auxiliary bearing hole; the synchronous disk is connected to the moving scroll through the first auxiliary bearing and the second auxiliary bearing.
[0014] By adopting the above technical solution, since the synchronous disc is connected to the moving scroll through the first and second bearings, direct contact between the synchronous disc and the moving scroll is avoided, thereby reducing the requirements for the flatness of the mating surfaces of the synchronous disc and the moving scroll, thus reducing the requirements for the machining accuracy of the synchronous disc and the moving scroll, and consequently reducing the production difficulty and production cost of the moving scroll and the synchronous disc.
[0015] Optionally, the outer side of the synchronization disk is provided with at least two connecting parts that protrude outwards evenly. The connecting parts are provided one-to-one with the first auxiliary bearing holes, and each of the first auxiliary bearing holes is provided at the corresponding connecting part.
[0016] By adopting the above technical solution, since the first secondary bearing hole is located in the connecting part, and the connecting part protrudes outward from the outer side of the synchronizing plate, the first secondary bearing is positioned on the side of the moving scroll, reducing the heat that the moving scroll can transfer to the first secondary bearing, thereby lowering the temperature of the first secondary bearing and increasing its service life. Simultaneously, the second secondary bearing hole is also located on the side of the moving scroll, further reducing the heat that the moving scroll can transfer to the second secondary bearing, thus lowering its temperature and increasing its service life, thereby further extending the service life of the scroll air compressor.
[0017] Optionally, the scroll air compressor further includes a crankshaft, which includes a first section, a second section, and a connecting section located between the first section and the second section. The central axes of the first section and the second section are arranged parallel and spaced apart. The first section passes through the first auxiliary bearing and the second auxiliary bearing, and the second section passes through the stationary scroll to connect the stationary scroll and the moving scroll.
[0018] By adopting the above technical solution, since the first section passes through the first and second auxiliary bearings, the synchronous disc and the moving scroll are connected through the first and second auxiliary bearings. This also increases the connection stability between the synchronous disc and the moving scroll and avoids the need to use other fasteners to connect the synchronous disc to the moving scroll, greatly reducing the production cost of the scroll air compressor. Since the second section passes through the stationary scroll, the stationary scroll and the moving scroll are connected. In summary, by setting the crankshaft, not only are the synchronous disc and the moving scroll connected, but also the stationary scroll and the moving scroll are connected, reducing the assembly difficulty of the scroll air compressor and thus improving the production efficiency of the scroll air compressor.
[0019] Optionally, the crankshaft has a first threaded section and a second threaded section at both ends, and the first threaded section and the second threaded section are respectively connected to nuts.
[0020] By adopting the above technical solution, since the crankshaft is provided with a first threaded section and a second threaded section at both ends, and the first threaded section and the second threaded section are respectively connected with nuts, the connection stability between the synchronous disc and the moving scroll and the connection stability between the stationary scroll and the moving scroll are increased. At the same time, the difficulty of fixing the synchronous disc to the moving scroll and the difficulty of fixing the stationary scroll to the moving scroll are reduced, so as to further improve the production efficiency of the scroll air compressor.
[0021] Optionally, an annular gasket is provided between the first auxiliary bearing and the second auxiliary bearing to form the separation gap between the synchronous disc and the opposite side of the moving scroll disc.
[0022] By adopting the above technical solution, since an annular gasket is provided between the first and second bearings, the synchronous disc and the moving scroll are separated by the action of the annular gasket. At the same time, the annular gasket can also offset the assembly tolerance caused by the poor flatness of the mating surfaces of the synchronous disc and the moving scroll, and keep the separation gap between the synchronous disc and the moving scroll constant, thereby increasing the connection stability between the synchronous disc and the moving scroll.
[0023] Optionally, a plurality of heat dissipation holes are provided between the synchronization discs, and the heat dissipation holes pass through the synchronization discs along the axial direction of the synchronization discs.
[0024] By adopting the above technical solution, since several heat dissipation holes are opened between the synchronous discs and the heat dissipation holes pass through the synchronous discs along the axial direction of the synchronous discs, the heat of the moving scroll can be discharged through the heat dissipation holes, thereby improving the heat dissipation efficiency of the moving scroll. At the same time, the heat dissipation holes can also reduce the weight of the synchronous discs, thereby reducing the workload of the motor, extending the service life of the motor and reducing the energy consumption of the motor, thus further improving the service life of the scroll air compressor, and also achieving the effect of facilitating the lightweight design of the scroll air compressor.
[0025] Optionally, the heat dissipation holes are evenly spaced along the circumference of the main bearing hole.
[0026] By adopting the above technical solution, the numerous heat dissipation holes are evenly distributed circumferentially, thus assisting the main bearing in heat dissipation. This improves the main bearing's heat dissipation efficiency and reduces its temperature, thereby further extending its service life. Simultaneously, it also makes the weight distribution of the synchronous disc more uniform, increasing its balance and improving its dynamic balance. This prevents poor dynamic balance from affecting the motor's lifespan, ultimately ensuring the service life of the scroll air compressor.
[0027] Optionally, the moving scroll plate is provided with heat dissipation fins on the opposite side.
[0028] By adopting the above technical solution, the heat dissipation area of the moving scroll is increased due to the heat dissipation fins on the opposite side of the moving scroll, thereby improving the heat dissipation effect and efficiency of the moving scroll and further improving the service life of the scroll air compressor. At the same time, the heat dissipation fins can also increase the structural strength of the moving scroll, thereby improving the service life of the moving scroll.
[0029] This application also provides an oxygen generator to reduce the noise generated during operation and to increase the service life of the oxygen generator.
[0030] An oxygen concentrator, comprising:
[0031] An adsorption cartridge filled with an adsorbent for adsorbing nitrogen gas;
[0032] A compressor for supplying pressurized air to the adsorption cylinder, the compressor being selected from the scroll air compressors described above;
[0033] A humidification cup is used to humidify oxygen from the adsorption cylinder, and the humidified oxygen is then delivered to the user.
[0034] By adopting the above technical solution, since the oxygen concentrator in this application has the aforementioned scroll air compressor, the noise generated by the friction between the moving and stationary scroll plates of the scroll air compressor during the operation of the oxygen concentrator is avoided, thereby reducing the noise during the operation of the oxygen concentrator, increasing the service life of the oxygen concentrator, and thus improving the user experience.
[0035] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:
[0036] 1. The scroll air compressor of this application includes a turbine assembly, a synchronous disk, and a drive mechanism. The turbine assembly includes a moving scroll and a stationary scroll that cooperate with each other. The moving scroll has a side away from the stationary scroll. The synchronous disk is connected to the moving scroll and is located on the side away from the moving scroll. A separation gap is provided between the synchronous disk and the side away from the moving scroll. The synchronous disk includes a central main bearing hole, in which a main bearing is housed. The drive mechanism includes an interconnected motor and an eccentric shaft. One end of the eccentric shaft passes through the main bearing. The motor drives the eccentric shaft to move the synchronous disk, which in turn moves the moving scroll. This achieves the separation between the main bearing and the moving scroll, preventing the heat from the moving scroll from being directly transferred to the main bearing. This significantly reduces the temperature of the main bearing, thereby increasing its service life. Compared to directly transferring the heat from the moving scroll to the main bearing, this method provides a more efficient and efficient solution. For the mounting scheme on the moving scroll, the heat dissipation area of the moving scroll is increased, thereby improving its heat dissipation efficiency and effect, and extending its service life. Simultaneously, the presence of the separation gap reduces the requirements for the flatness of the mating surfaces of the moving scroll and the synchronous disc, thus lowering the machining precision requirements and reducing the production difficulty and cost of the moving scroll and synchronous disc. Furthermore, it avoids deformation of the moving scroll when the synchronous disc is installed on it, ensuring the correct position of the moving scroll profile relative to the main bearing hole. This prevents rubbing between the moving and stationary scrolls during operation of the scroll air compressor, thereby reducing noise and extending its service life.
[0037] 2. The synchronous disc in this application has at least two first auxiliary bearing holes, in which a first auxiliary bearing is installed. The moving scroll has at least two second auxiliary bearing holes, in which a second auxiliary bearing is installed. The synchronous disc is connected to the moving scroll through the first and second auxiliary bearings, thereby avoiding direct contact between the synchronous disc and the moving scroll. This reduces the requirements for the flatness of the mating surfaces of the synchronous disc and the moving scroll, thereby reducing the requirements for the machining accuracy of the synchronous disc and the moving scroll, and further reducing the production difficulty and production cost of the moving scroll and the synchronous disc.
[0038] 3. In this application, the outer side of the synchronous disc protrudes outwards uniformly with at least two connecting portions, each corresponding to a first auxiliary bearing hole. Each first auxiliary bearing hole is located at its corresponding connecting portion, thereby placing the first auxiliary bearing on the side of the moving scroll. This reduces the heat transferred from the moving scroll to the first auxiliary bearing, thus lowering its temperature and extending its service life. Simultaneously, the second auxiliary bearing hole is also located on the side of the moving scroll, further reducing the heat transferred from the moving scroll to the second auxiliary bearing, thus lowering its temperature and extending its service life. This, in turn, further increases the service life of the scroll air compressor. Attached Figure Description
[0039] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0040] Figure 1 This is a partial structural cross-sectional view of the scroll air compressor described in one embodiment of this application, which does not show the annular gasket;
[0041] Figure 2 This is a partial structural schematic diagram of the scroll air compressor described in one embodiment of this application;
[0042] Figure 3 This is a schematic diagram of another view of the structure of a portion of the scroll air compressor described in one embodiment of this application;
[0043] Figure 4 This is a schematic diagram of the structure of the synchronization disk according to one embodiment of this application;
[0044] Figure 5 This is a schematic diagram of the structure of the moving scroll plate according to one embodiment of this application;
[0045] Figure 6 This is a schematic diagram of the moving scroll plate from another perspective in one embodiment of this application, mainly showing the connection relationship between the second auxiliary bearing and the second auxiliary bearing hole;
[0046] Figure 7 This is a schematic diagram of the crankshaft according to one embodiment of this application.
[0047] Figure label:
[0048] 1. Moving scroll; 11. Second auxiliary bearing hole; 111. Second auxiliary bearing; 112. Annular gasket; 12. Heat dissipation fin; 2. Synchronizing disc; 21. Main bearing hole; 211. Main bearing; 22. First auxiliary bearing hole; 221. First auxiliary bearing; 23. Connecting part; 24. Heat dissipation hole; 3. Eccentric shaft; 4. Separating gap; 5. Crankshaft; 51. First section; 511. First threaded section; 512. Nut; 52. Second section; 521. Second threaded section; 53. Connecting section; 6. Stationary scroll. Detailed Implementation
[0049] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.
[0050] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.
[0051] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0053] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.
[0054] Reference Figures 1 to 7 A scroll air compressor is disclosed, comprising a turbine assembly, a synchronous disk 2, and a drive mechanism. The turbine assembly includes a moving scroll 1 and a stationary scroll 6 that cooperate with each other. The moving scroll 1 has a side facing away from the stationary scroll 6. The synchronous disk 2 is connected to the moving scroll 1 and is located on the side facing away from the moving scroll 1. A separation gap 4 is provided between the synchronous disk 2 and the side facing away from the moving scroll 1. The synchronous disk 2 includes a main bearing hole 21 located at the center, and a main bearing 211 is provided in the main bearing hole 21. The drive mechanism includes an interconnected motor and an eccentric shaft 3. One end of the eccentric shaft 3 passes through the main bearing 211. The motor drives the eccentric shaft 3 to move the synchronous disk 2, which in turn drives the moving scroll 1 to move.
[0055] When the scroll air compressor in this application is working, the motor drives the eccentric shaft 3 to rotate. Under the action of the main bearing 211, the eccentric shaft 3 drives the synchronous disk 2 to rotate. Since the synchronous disk 2 is connected to the moving scroll 1, the synchronous disk 2 drives the moving scroll 1 to rotate, so that the moving scroll 1 and the stationary scroll 6 rotate relative to each other and generate pressurized air under their mutual cooperation.
[0056] Because a separation gap 4 is provided between the synchronous disc 2 and the moving scroll 1, and the main bearing 211 is located on the synchronous disc 2, the main bearing 211 and the moving scroll 1 are spaced apart to avoid the phenomenon that the heat of the moving scroll 1 is directly transferred to the main bearing 211, thereby greatly reducing the temperature of the main bearing 211 and improving its service life. Compared with the scheme of directly installing the main bearing 211 on the moving scroll 1, the heat dissipation area of the moving scroll 1 is increased, thereby improving the heat dissipation efficiency and heat dissipation effect of the moving scroll 1 and extending its service life.
[0057] Meanwhile, the presence of the separation gap 4 reduces the flatness requirements of the mating surfaces of the moving scroll 1 and the synchronous disk 2, thereby reducing the machining accuracy requirements of the moving scroll 1 and the synchronous disk 2. This reduces the production difficulty and cost of the moving scroll 1 and the synchronous disk 2. In addition, it avoids the phenomenon of deformation of the moving scroll 1 when the synchronous disk 2 is installed on the moving scroll 1, ensuring the positional requirements of the profile of the moving scroll 1 relative to the main bearing hole 21. This avoids the phenomenon of the moving scroll 1 rubbing against the stationary scroll 6 when the scroll air compressor is working, thereby reducing the noise generated by the scroll air compressor during operation and improving the service life of the scroll air compressor.
[0058] This application does not specify the connection method between the synchronous disk 2 and the moving scroll disk 1. Preferably, refer to... Figure 4 , Figure 5 and Figure 6 The synchronous disc 2 has at least two first auxiliary bearing holes 22, and a first auxiliary bearing 221 is installed in the first auxiliary bearing hole 22. The moving scroll 1 has at least two second auxiliary bearing holes 11, and a second auxiliary bearing 111 is installed in the second auxiliary bearing hole 11. The second auxiliary bearing holes 11 and the first auxiliary bearing holes 22 are arranged in a one-to-one correspondence. The synchronous disc 2 is connected to the moving scroll 1 through the first auxiliary bearing 221 and the second auxiliary bearing 111, thereby avoiding direct contact between the synchronous disc 2 and the moving scroll 1. This reduces the requirements for the flatness of the mating surfaces of the synchronous disc 2 and the moving scroll 1, thereby reducing the requirements for the machining accuracy of the synchronous disc 2 and the moving scroll 1, and thus reducing the production difficulty and production cost of the moving scroll 1 and the synchronous disc 2.
[0059] Specifically, the synchronous disc 2 has three first auxiliary bearing holes 22, and the moving scroll 1 has three corresponding second auxiliary bearing holes 11, so as to prevent the synchronous disc 2 from rotating on its own.
[0060] Furthermore, refer to Figure 4 At least two connecting portions 23 are evenly protruding outwards from the outer side of the synchronous disc 2. Each connecting portion 23 corresponds to a first auxiliary bearing hole 22, and each first auxiliary bearing hole 22 is located at its corresponding connecting portion 23. This positions the first auxiliary bearing 221 on the side of the moving scroll 1, reducing the heat transferred from the moving scroll 1 to the first auxiliary bearing 221, thereby lowering its temperature and extending its service life. Simultaneously, the second auxiliary bearing hole 11 is also located on the side of the moving scroll 1, further reducing the heat transferred from the moving scroll 1 to the second auxiliary bearing 111, thus lowering its temperature and extending its service life. This, in turn, further increases the service life of the scroll air compressor.
[0061] This application does not specifically limit the structure of the connecting part 23. Preferably, the connecting part 23 is a plate-like structure extending outward from the side of the synchronous disk 2. That is, the connecting part 23 is integrally formed with the synchronous disk 2 to reduce the production difficulty of the synchronous disk 2 and improve the production efficiency of the synchronous disk 2. In other embodiments, the connecting part 23 can also be other structures that are fixedly connected to the synchronous disk 2 by welding, riveting or fasteners.
[0062] Furthermore, refer to Figure 1 , Figure 2 , Figure 3 and Figure 7 The scroll air compressor also includes a crankshaft 5, which includes a first section 51, a second section 52, and a connecting section 53 located between the first section 51 and the second section 52. The central axes of the first section 51 and the second section 52 are arranged parallel to each other. The first section 51 passes through the first auxiliary bearing 221 and the second auxiliary bearing 111, and the second section 52 passes through the stationary scroll 6 to connect the stationary scroll 6 and the moving scroll 1.
[0063] Since the first section 51 passes through the first auxiliary bearing 221 and the second auxiliary bearing 111, the synchronous disc 2 and the moving scroll 1 are connected through the first auxiliary bearing 221 and the second auxiliary bearing 111. This also increases the connection stability between the synchronous disc 2 and the moving scroll 1 and avoids the need to use other fasteners to connect the synchronous disc 2 to the moving scroll 1, greatly reducing the production cost of the scroll air compressor. Since the second section 52 passes through the stationary scroll 6, the stationary scroll 6 is connected to the moving scroll 1. In summary, by setting the crankshaft 5, not only are the synchronous disc 2 and the moving scroll 1 connected, but the stationary scroll 6 and the moving scroll 1 are also connected, which reduces the assembly difficulty of the scroll air compressor and thus improves the production efficiency of the scroll air compressor.
[0064] Furthermore, refer to Figure 1 , Figure 2 , Figure 3 and Figure 7 The crankshaft 5 has a first threaded section 511 and a second threaded section 521 at both ends, and the first threaded section 511 and the second threaded section 521 are respectively connected to nuts 512.
[0065] It is understandable that the first threaded section 511 and the second threaded section 521 are respectively provided in the first section 51 and the second section 52, and the first section 51 is provided with a nut 512 threadedly connected to the first threaded section 511, and the second section 52 is also provided with a nut 512 threadedly connected to the second threaded section 521. This increases the connection stability between the synchronous disc 2 and the moving scroll 1, as well as the connection stability between the stationary scroll 6 and the moving scroll 1. At the same time, it reduces the difficulty of fixing the synchronous disc 2 to the moving scroll 1 and the difficulty of fixing the stationary scroll 6 to the moving scroll 1, so as to further improve the production efficiency of the scroll air compressor.
[0066] It should be noted that both the first auxiliary bearing hole 22 and the second auxiliary bearing hole 11 are stepped holes. The smaller diameter end of the first auxiliary bearing hole 22 is adjacent to the smaller diameter end of the second auxiliary bearing hole 11. That is, the smaller diameter end of the first auxiliary bearing hole 22 is located on the side of the synchronous disc 2 closer to the moving scroll 1, and the smaller diameter end of the second auxiliary bearing hole 11 is located on the side of the moving scroll 1 closer to the synchronous disc 2. This allows the end wall at the diameter change of the first auxiliary bearing hole 22 to stop and limit the first auxiliary bearing 221, and the end wall at the diameter change of the second auxiliary bearing hole 11 to stop and limit the second auxiliary bearing 221. The auxiliary bearing 111 provides a stop and limit; or, the larger end of the first auxiliary bearing hole 22 is adjacent to the larger end of the second auxiliary bearing hole 11. That is, the larger end of the first auxiliary bearing hole 22 is located on the side of the synchronous disc 2 near the moving scroll 1, and the larger end of the second auxiliary bearing hole 11 is located on the side of the moving scroll 1 near the synchronous disc 2. This allows the smaller end of the first auxiliary bearing hole 22 to provide a stop and limit for the nut 512, and the smaller end of the second auxiliary bearing hole 11 to provide a stop and limit for the connecting section 53 of the crankshaft 5.
[0067] This application does not specifically limit the formation method of the first partition gap 4; preferably, refer to Figure 2 and Figure 3 An annular gasket 112 is provided between the first bearing 221 and the second bearing 111 to form a separation gap 4 between the opposite sides of the synchronous disc 2 and the moving scroll 1. At the same time, the annular gasket 112 can also offset the assembly tolerance caused by the poor flatness of the mating surfaces of the synchronous disc 2 and the moving scroll 1, and keep the separation gap 4 between the synchronous disc 2 and the moving scroll 1 constant, so as to increase the connection stability between the synchronous disc 2 and the moving scroll 1.
[0068] Specifically, the annular gasket 112 is sleeved on the outside of the first segment 51, thereby enabling the first segment 51 to limit the annular gasket 112, thereby increasing the stability of the annular gasket 112 and ensuring that the gap between the synchronous disk 2 and the moving scroll disk 1 remains constant.
[0069] In other implementation examples, a partition rib can also be provided between the synchronous disk 2 and the moving scroll disk 1 so that a separation gap 4 is formed between the synchronous disk 2 and the moving scroll disk 1 under the action of the partition rib.
[0070] In other embodiments, the connection between the synchronizing disk 2 and the moving scroll 1 can also be that the moving scroll 1 is provided with a connecting post, the synchronizing disk 2 is provided with a hole structure for the connecting post to pass through, and the connecting post is threaded with a fixing nut. The fixing nut is located on the side of the synchronizing disk 2 away from the moving scroll 1, so as to achieve a fixed connection between the synchronizing disk 2 and the moving scroll 1 by using the connecting post and the fixing nut.
[0071] In a preferred embodiment, refer to Figure 4 Several heat dissipation holes 24 are provided between the synchronous discs 2. The heat dissipation holes 24 pass through the synchronous discs 2 along the axial direction of the synchronous discs 2, so that the heat of the moving scroll 1 can be discharged through the heat dissipation holes 24, thereby improving the heat dissipation efficiency of the moving scroll 1. At the same time, the heat dissipation holes 24 can also reduce the weight of the synchronous discs 2, thereby reducing the workload of the motor, extending the service life of the motor and reducing the energy consumption of the motor, thereby further improving the service life of the scroll air compressor, and also achieving the effect of facilitating the lightweight design of the scroll air compressor.
[0072] This application does not impose specific limitations on the distribution of the heat dissipation holes 24, which can be any of the following embodiments:
[0073] Example 1, in this example, refers to Figure 4 Several heat dissipation holes 24 are evenly distributed around the circumference of the main bearing hole 21, so that the heat dissipation holes 24 can also assist the main bearing 211 in dissipating heat, thereby improving the heat dissipation efficiency of the main bearing 211, reducing the temperature of the main bearing 211, and further extending the service life of the main bearing 211. At the same time, it can also make the weight distribution of the synchronous disc 2 more uniform, thereby increasing the balance of the synchronous disc 2 and improving the dynamic balance of the synchronous disc 2. This avoids the impact of poor dynamic balance of the synchronous disc 2 on the motor life, and thus ensures the service life of the scroll air compressor.
[0074] Example 2: In this example, the synchronization disk 2 has a central axis, and a number of heat dissipation holes 24 are symmetrically distributed along the central axis.
[0075] In a preferred embodiment, refer to Figure 5 and Figure 6 The moving scroll 1 has a heat dissipation fin 12 on the opposite side, which increases the heat dissipation area of the moving scroll 1, thereby improving the heat dissipation effect and efficiency of the moving scroll 1, and further improving the service life of the scroll air compressor. At the same time, the heat dissipation fin 12 can also increase the structural strength of the moving scroll 1, thereby improving the service life of the moving scroll 1.
[0076] It should be noted that the presence of the separation gap 4 results in a gap between the heat dissipation fin 12 and the synchronous disk 2, further preventing the heat from the moving scroll 1 from being directly transferred to the main bearing 211.
[0077] This application also discloses an oxygen generator, which includes an adsorption cylinder, a compressor, and a humidification cup, wherein the adsorption cylinder is filled with an adsorbent for adsorbing nitrogen; the compressor is used to supply pressurized air to the adsorption cylinder, and the compressor is selected from the scroll air compressor described above; the humidification cup is used to humidify the oxygen from the adsorption cylinder, and the oxygen is delivered to the user after being humidified by the humidification cup.
[0078] Because the oxygen concentrator in this application has the aforementioned scroll air compressor, the noise generated by the friction between the moving scroll 1 and the stationary scroll 6 of the scroll air compressor during operation is avoided, thereby reducing the noise during operation of the oxygen concentrator, increasing the service life of the oxygen concentrator, and thus improving the user experience.
[0079] For any parts not mentioned in this application, existing technologies may be used or referenced.
[0080] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0081] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A scroll air compressor, characterized in that, include: A turbine assembly, the turbine assembly including a moving scroll and a stationary scroll that cooperate with each other, the moving scroll having a back side away from the stationary scroll; A synchronizing disk is connected to the moving scroll and is located on the opposite side of the moving scroll. A separation gap is provided between the synchronizing disk and the opposite side of the moving scroll. The synchronizing disk includes a main bearing hole located at the center, and a main bearing is provided in the main bearing hole. The drive mechanism includes an interconnected motor and an eccentric shaft, one end of which passes through the main bearing; the motor drives the eccentric shaft to move the synchronous disk, which in turn drives the moving scroll disk to move.
2. A scroll air compressor according to claim 1, characterized in that, The synchronous disk has at least two first auxiliary bearing holes, and a first auxiliary bearing is installed in the first auxiliary bearing hole. The moving scroll has at least two second auxiliary bearing holes, and a second auxiliary bearing is installed in the second auxiliary bearing hole. The synchronous disk is connected to the moving scroll through the first auxiliary bearing and the second auxiliary bearing.
3. A scroll air compressor according to claim 2, characterized in that, The outer side of the synchronization disk has at least two connecting parts that protrude outwards evenly. Each connecting part corresponds to one of the first auxiliary bearing holes, and each first auxiliary bearing hole is located at the corresponding connecting part.
4. A scroll air compressor according to claim 2, characterized in that, The scroll air compressor further includes a crankshaft, which includes a first section, a second section, and a connecting section located between the first section and the second section. The central axes of the first section and the second section are arranged parallel and spaced apart. The first section passes through the first auxiliary bearing and the second auxiliary bearing, and the second section passes through the stationary scroll to connect the stationary scroll and the moving scroll.
5. A scroll air compressor according to claim 4, characterized in that, The crankshaft has a first threaded section and a second threaded section at both ends, and the first threaded section and the second threaded section are respectively connected to nuts.
6. A scroll air compressor according to claim 2, characterized in that, An annular gasket is provided between the first auxiliary bearing and the second auxiliary bearing to form the separation gap between the synchronous disk and the opposite side of the moving scroll.
7. A scroll air compressor according to any one of claims 1-6, characterized in that, Several heat dissipation holes are provided between the synchronization disks, and the heat dissipation holes pass through the synchronization disks along the axial direction of the synchronization disks.
8. A scroll air compressor according to claim 7, characterized in that, The heat dissipation holes are evenly spaced along the circumference of the main bearing hole.
9. A scroll air compressor according to any one of claims 1-6, characterized in that, The moving scroll is provided with heat dissipation fins on the opposite side.
10. An oxygen generator, characterized in that, It includes: An adsorption cartridge filled with an adsorbent for adsorbing nitrogen gas; A compressor for supplying pressurized air to the adsorption cylinder, the compressor being selected from the scroll air compressor as described in any one of claims 1-9; A humidification cup is used to humidify oxygen from the adsorption cylinder, and the humidified oxygen is then delivered to the user.