compressor

Abstract

The application provides a compressor, which comprises a casing and a static vortex disc, the static vortex disc is arranged in the casing, the casing is provided with an oil-gas separation cavity, and the compressor further comprises: an oil storage part arranged on the static vortex disc, the oil storage part being communicated with the oil-gas separation cavity; and an oil return channel, at least part of the oil return channel being arranged in the casing, two ends of the oil return channel being respectively communicated with the oil storage part and an oil pool at the bottom of the casing, and oil in the oil-gas separation cavity being returned to the oil pool in sequence through the oil storage part and the oil return channel. The application solves the problem of low reliability of the compressor in the prior art.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically, to a compressor. Background Technology

[0002] Low-pressure chamber scroll compressors, because the intake air enters the motor cavity directly before entering the pump body for compression, effectively cool and dissipate heat from the motor, improving motor performance and reliability. They also have excellent resistance to liquid slugging and can adapt to harsh working conditions and environments. Low-pressure chamber scroll compressors are widely used in various refrigeration scenarios. Scroll compressors for household and commercial refrigeration are generally installed vertically, with a stable oil level in the oil sump at the bottom of the compressor ensuring stable oil pump intake and lubrication of all friction pairs. However, for some mobile refrigeration equipment compressors (such as those for vehicle-mounted, marine, and aircraft refrigeration equipment), due to the influence of the working environment, such as bumpy roads, steep and sloping surfaces, or the tilting motion of the aircraft, even with vertical installation, the oil level at the bottom of the compressor fluctuates significantly, affecting the stable oil pump intake and even causing a lack of oil intake.

[0003] To ensure reliable lubrication of the compressor bearings under harsh conditions, existing technologies involve installing an exhaust oil separator on the exhaust end cover and adjusting the compressor's placement and installation method. For example, in a scroll compressor used in automobiles, an oil-gas separator is installed on the end cover, and the compressor is placed horizontally. This achieves the effect of separating and storing exhaust oil in the exhaust chamber of the end cover, and an oil circuit is set up to return the stored lubricating oil to each moving part for lubrication.

[0004] However, the exhaust chamber of a low-pressure chamber scroll compressor is relatively small. The oil mist carried by the exhaust cannot be effectively retained and separated in the exhaust chamber and is carried away by the gas and discharged from the compressor. This affects the oil separation, deposition and oil storage effect, resulting in a large oil discharge rate of the compressor. When the lubricating oil inside the compressor is discharged to the system and the oil return is poor, it is easy to cause oil shortage in the compressor and reduce the reliability of the compressor. Summary of the Invention

[0005] The main objective of this invention is to provide a compressor that solves the problem of low reliability in existing compressors.

[0006] To achieve the above objectives, according to one aspect of the present invention, a compressor is provided, comprising a housing and a stationary scroll plate, the stationary scroll plate being disposed within the housing, and an oil-gas separation chamber being provided on the housing. The compressor further comprises: an oil storage section disposed on the stationary scroll plate, the oil storage section communicating with the oil-gas separation chamber; and an oil return channel, at least a portion of which is disposed within the housing, the two ends of which are respectively connected to the oil storage section and an oil sump at the bottom of the housing, wherein the oil in the oil-gas separation chamber flows back to the oil sump after sequentially passing through the oil storage section and the oil return channel.

[0007] Furthermore, the oil storage section includes: an oil storage chamber disposed on a stationary vortex disk, the oil storage chamber being connected to an oil-gas separation chamber and a return oil channel respectively; and a first throttling element disposed in the oil storage chamber, the oil in the oil storage chamber flowing into the return oil channel after being throttled by the first throttling element.

[0008] Furthermore, the first throttling element includes: a mounting body disposed within an oil storage chamber, the mounting body having a flow-through groove and a flow-through channel, the flow-through groove and the flow-through channel being located at both ends of the mounting body respectively, the flow-through channel being disposed through the mounting body; and a first connecting pipe, the two ends of the first connecting pipe being connected to the flow-through groove and the flow-through channel respectively, the oil at the oil inlet end of the oil storage chamber flowing into the first connecting pipe through the flow-through groove, and then sequentially flowing back into the return oil channel through the flow-through channel and the oil outlet end of the oil storage chamber.

[0009] Furthermore, the bottom surface of the mounting body is in contact with the bottom surface of the oil storage cavity, and the flow groove includes: a first section and a second section connected to each other, the cross-sectional area of ​​the flow section of the first section is larger than the cross-sectional area of ​​the flow section of the second section, the depth of the second section is larger than the depth of the first section, at least a portion of the first connecting pipe is connected in the second section, and the oil flows into the first connecting pipe after passing through the first section and the second section in sequence.

[0010] Furthermore, the oil storage section also includes: a second throttling element, disposed inside the first connecting pipe and in contact with the pipe wall of the first connecting pipe, the second throttling element having a throttling channel, the throttling channel being recessed relative to the surface of the second throttling element, and the throttling channel being spirally arranged along the extension direction of the second throttling element.

[0011] Furthermore, a protrusion is provided on the side of the mounting body, the protrusion extends along the circumferential direction of the mounting body, at least part of the protrusion is in contact with the inner wall of the oil storage cavity, there are multiple protrusions, and the multiple protrusions are spaced apart along the thickness direction of the mounting body.

[0012] Furthermore, the oil return channel includes a first channel section, a second channel section, and a third channel section. The compressor also includes a scroll plate support, with a stationary scroll plate and a moving scroll plate respectively mounted on the scroll plate support. Wear-resistant plates are also mounted on the scroll plate support, with the stationary scroll plate and the moving scroll plate respectively in contact with the wear-resistant plates. The first channel section is mounted on the wear-resistant plates, the second channel section is mounted on the scroll plate support, and the third channel section is mounted on the moving scroll plate. The oil in the oil storage section flows through the first channel section, the second channel section, and the third channel section in sequence before returning to the oil sump.

[0013] Furthermore, the oil storage section includes multiple oil storage chambers, which are spaced apart along the circumferential direction of the stationary vortex disk; there are multiple first channel sections, which are arranged one-to-one with the multiple oil storage chambers, and each first channel section includes a first oil outlet and a first oil inlet; there are multiple second channel sections, which are arranged one-to-one with the multiple oil storage chambers, and each second channel section includes a first oil storage groove, which is a strip-shaped structure and has a first oil inlet and a first oil outlet; wherein, the oil in one of the multiple oil storage chambers flows sequentially through the first oil outlet, the first oil inlet and the first oil storage groove, and then flows through the first oil outlet and the first oil inlet to another adjacent oil storage chamber.

[0014] Furthermore, the multiple oil storage chambers include an end oil storage chamber. The oil in the end oil storage chamber flows sequentially through the corresponding first oil outlet, first oil storage groove and first oil inlet before flowing into the third channel section.

[0015] Furthermore, the oil storage section includes multiple oil storage chambers, which are spaced apart along the circumferential direction of the stationary vortex disk; the first channel section includes multiple second oil storage grooves, a second oil outlet, and a second oil inlet; two adjacent oil storage chambers are connected through their corresponding second oil storage grooves, and the second oil inlet is connected to the third channel section; the multiple oil storage chambers include an end oil storage chamber, and the oil in the end oil storage chamber flows sequentially through the second oil outlet, the second channel section, and the second oil inlet before flowing into the third channel section.

[0016] Furthermore, the oil storage section includes multiple oil storage chambers, which are spaced apart along the circumferential direction of the stationary vortex disk; multiple third oil storage grooves are provided on the bottom surface of the stationary vortex disk, and two adjacent oil storage chambers are connected through the corresponding third oil storage grooves; the multiple oil storage chambers include end oil storage chambers, and the oil in the end oil storage chambers flows sequentially through the first channel section and the second channel section before flowing into the third channel section.

[0017] Furthermore, the oil return channel also includes a fourth channel section, and the compressor also includes a second connecting pipe. The fourth channel section is located at the bottom of the scroll plate support, one end of the second connecting pipe is connected to the fourth channel section, and the other end extends into the oil sump.

[0018] Furthermore, the housing includes an end cover, an oil-gas separation chamber is disposed inside the end cover, and the oil return channel includes a fifth channel section and a sixth channel section that are interconnected. The fifth channel section is disposed on the end cover, and the sixth channel section is disposed on the stationary vortex disk. The fifth channel section is connected to the oil-gas separation chamber, and the sixth channel section is connected to the oil storage section. The oil in the oil-gas separation chamber flows sequentially through the fifth channel section and the sixth channel section before flowing into the oil storage section. A filter component is disposed in the fifth channel section; and / or, the sixth channel section is inclined relative to the axis of the stationary vortex disk.

[0019] By applying the technical solution of this invention, the compressor provided in this application features an added oil reservoir and an improved oil return channel design, enabling the compressor to maintain a good oil supply even when facing changes in the working environment such as tilting and vibration, thus avoiding mechanical failures and performance degradation caused by poor lubrication. This significantly improves the oil residence time and separation efficiency, and reduces the oil discharge rate during compressor operation. The main function of the oil reservoir is to establish an independent oil storage area on the stationary scroll plate. Unlike traditional designs that rely solely on the oil sump at the bottom of the casing, the oil reservoir can better capture the oil separated from the oil-gas separation chamber. Even under harsh operating conditions such as compressor tilting or vibration, it ensures that the oil is not carried away by the exhaust gas too quickly, but rather can effectively remain, separate, and accumulate within the oil reservoir. At least a portion of the oil return channel is located inside the casing, playing a crucial role in guiding the oil in the oil reservoir and ultimately returning it to the oil sump at the bottom of the casing. In this way, not only is effective oil recovery achieved, but high-pressure gas is also prevented from flowing back to the suction side through the oil return path, thereby reducing internal leakage and improving the overall performance of the compressor. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 A schematic diagram of a compressor according to the prior art is shown;

[0022] Figure 2 A schematic diagram of the compressor according to the present invention is shown;

[0023] Figure 3 A first-view cross-sectional view of the stationary scroll plate of the compressor according to the present invention is shown;

[0024] Figure 4 A cross-sectional view of the stationary scroll plate of the compressor according to the present invention is shown from a second perspective;

[0025] Figure 5 A cross-sectional view of the first throttling element of the compressor according to the present invention is shown;

[0026] Figure 6 A schematic diagram of the mounting body of the first throttling element of the compressor according to the present invention is shown;

[0027] Figure 7 A schematic diagram of the structure of the first connecting pipe of the compressor according to the present invention is shown;

[0028] Figure 8 A schematic diagram of the structure of the compressor seal according to the present invention is shown;

[0029] Figure 9 A schematic diagram of the oil path in a compressor according to a first embodiment of the present invention is shown;

[0030] Figure 10 A schematic diagram of a second embodiment of the oil reservoir in a compressor according to the present invention is shown;

[0031] Figure 11 A schematic diagram of the oil path in a compressor according to a second embodiment of the present invention is shown;

[0032] Figure 12 A schematic diagram of the oil path in a compressor according to a third embodiment of the present invention is shown;

[0033] Figure 13 A schematic diagram of the oil path in a compressor according to a fourth embodiment of the present invention is shown;

[0034] Figure 14 A schematic diagram of the static scroll plate in the compressor according to the present invention is shown.

[0035] The above figures include the following reference numerals:

[0036] 100. Housing; 101. Oil-gas separation chamber; 110. Oil sump; 120. Second connecting pipe; 130. End cap; 140. Oil-gas separator; 200. Static vortex disc; 210. Third oil storage groove; 220. Seal; 221. First sealing body; 222. Second sealing body; 223. Sealing protrusion;

[0037] 300, Oil storage section; 310, Oil storage chamber; 311, End oil storage chamber; 320, First throttling element; 321, Mounting body; 3210, Flow groove; 3211, Flow channel; 322, First connecting pipe; 3212, First hole section; 3213, Second hole section; 3214, Protrusion; 330, Second throttling element; 331, Throttling channel;

[0038] 400. Oil return channel; 410. First channel section; 411. First oil outlet; 412. First oil inlet; 413. Second oil storage groove; 414. Second oil outlet; 415. Second oil inlet; 420. Second channel section; 421. First oil storage groove; 422. First oil inlet; 423. First oil outlet; 430. Third channel section; 440. Fourth channel section; 450. Fifth channel section; 451. Filter component; 460. Sixth channel section; 500. Scroll disc support; 510. Wear-resistant plate; 520. Support bearing; 600. Moving scroll disc; 610. Scroll disc bearing. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] Please refer to Figures 2 to 14 This application provides a compressor, including a housing 100 and a stationary scroll plate 200. The stationary scroll plate 200 is disposed inside the housing 100. An oil-gas separation chamber 101 is provided on the housing 100. The compressor also includes: an oil storage section 300 disposed on the stationary scroll plate 200 and communicating with the oil-gas separation chamber 101; and an oil return channel 400, at least a portion of which is disposed inside the housing 100. The two ends of the oil return channel 400 are respectively connected to the oil storage section 300 and an oil sump 110 at the bottom of the housing 100. The oil in the oil-gas separation chamber 101 flows back to the oil sump 110 after passing through the oil storage section 300 and the oil return channel 400 in sequence.

[0041] The compressor provided in this application features an added oil reservoir 300 and an improved oil return channel 400 design, which ensures a good oil supply even when the compressor is subjected to changes in the working environment such as tilting and vibration, thus avoiding mechanical failures and performance degradation caused by poor lubrication. This significantly improves the oil residence time and separation efficiency, and reduces the oil discharge rate during compressor operation. The main function of the oil reservoir 300 is to establish an independent oil storage area on the stationary scroll plate 200. Unlike traditional designs that rely solely on the oil sump at the bottom of the casing, the oil reservoir 300 can better capture the oil separated from the oil-gas separation chamber 101. Even under harsh operating conditions such as compressor tilting or vibration, it ensures that the oil is not carried away by the exhaust gas too quickly, but rather can effectively remain, separate, and accumulate within the oil reservoir 300. At least a portion of the oil return channel 400 is located within the casing 100, playing a crucial role in guiding the oil in the oil reservoir 300 and ultimately returning it to the oil sump 110 at the bottom of the casing 100. This method not only achieves effective oil recovery but also prevents high-pressure gas from flowing back to the suction side through the oil return path, thereby reducing internal leakage and improving the overall performance of the compressor.

[0042] In practice, when the compressed gas (containing oil mist) is separated from the oil-gas separation chamber 101, the oil follows a pre-designed path, first entering the oil storage section 300. During this process, the oil undergoes initial sedimentation. Subsequently, through the oil return channel 400, the oil is guided to the oil sump 110 at the bottom of the housing 100, thus forming a complete closed-loop oil return system. This design ensures that even under extreme conditions, the compressor can maintain stable oil circulation, effectively lubricating and cooling critical components such as bearings and friction pairs.

[0043] Specifically, in this application, the oil storage section 300 includes: an oil storage chamber 310, which is disposed on the stationary vortex disk 200, and the oil storage chamber 310 is connected to the oil-gas separation chamber 101 and the return oil channel 400 respectively; and a first throttling element 320, which is disposed in the oil storage chamber 310, and the oil in the oil storage chamber 310 flows into the return oil channel 400 after being throttled by the first throttling element 320.

[0044] The oil reservoir 310 is tightly connected to the oil-gas separation chamber 101, meaning that the lubricating oil separated from the compressor exhaust can flow directly into the oil reservoir 310 without undergoing long-distance pipeline transportation. This reduces oil loss and the risk of revaporization during transmission. The first throttling element 320 is located inside the oil reservoir 310, and it can throttle the lubricating oil before it flows back to the return oil channel 400. The throttling process not only helps reduce the pressure of the lubricating oil, making it more suitable for lubricating bearings and other moving parts, but also slows down the oil flow rate, increasing the residence time of the oil in the oil reservoir 310. This facilitates further separation of residual gas in the oil and improves the purity of the oil.

[0045] Compared to traditional elongated orifice throttling structures, the design of the first throttling element 320 is more flexible, allowing the use of easily molded and installed materials (such as deformable metal or plastic hoses). This design simplifies the manufacturing process of components, reduces production costs, and also reduces the potential processing difficulties and scrap rates associated with setting elongated orifices in complex structures.

[0046] In the specific implementation process, such as Figure 5 and Figure 6 As shown, the first throttling element 320 includes: a mounting body 321 disposed in an oil storage chamber 310, the mounting body 321 having a flow groove 3210 and a flow channel 3211, the flow groove 3210 and the flow channel 3211 being located at both ends of the mounting body 321 respectively, the flow channel 3211 being through the mounting body 321; and a first connecting pipe 322, the two ends of the first connecting pipe 322 being connected to the flow groove 3210 and the flow channel 3211 respectively, the oil at the oil inlet end of the oil storage chamber 310 flowing into the first connecting pipe 322 through the flow groove 3210, and then flowing back into the return oil channel 400 through the flow channel 3211 and the oil outlet end of the oil storage chamber 310 in sequence.

[0047] The design of the flow-through groove 3210 and flow-through channel 3211 on the mounting body 321 allows the lubricating oil entering the oil reservoir 310 to be initially throttled and stabilized through the flow-through groove 3210, and then further throttled through the flow-through channel 3211, effectively controlling the flow rate and pressure of the lubricating oil. The oil inlet end of the oil reservoir 310 is separated from the exhaust chamber by the first throttling element 320, effectively controlling the backflow of high-pressure gas. Under inclined or vibrating conditions, high-pressure gas is less likely to flow back to the compressor's suction side through the oil circuit, avoiding gas leakage between the high-pressure side and the low-pressure side, thereby improving the compressor's operating efficiency and reliability.

[0048] Specifically, the bottom surface of the mounting body 321 is in contact with the bottom surface of the oil storage cavity 310. The flow channel 3210 includes a first section 3212 and a second section 3213 connected to each other. The cross-sectional area of ​​the flow section of the first section 3212 is larger than the cross-sectional area of ​​the flow section of the second section 3213. The depth of the second section 3213 is greater than the depth of the first section 3212. At least a portion of the first connecting pipe 322 is connected in the second section 3213. The oil flows into the first connecting pipe 322 after passing through the first section 3212 and the second section 3213 in sequence.

[0049] The difference in cross-sectional area between the first orifice section 3212 and the second orifice section 3213 facilitates natural separation of the oil during flow. When the oil flows from the larger cross-section of the first orifice section 3212 to the smaller cross-section of the second orifice section 3213, the flow velocity increases accordingly. The greater depth of the second orifice section 3213 compared to the first orifice section 3212 increases the residence time of the oil in the orifice, providing more opportunities for the oil to slow its flow and further promoting the separation of oil and gas. The smaller flow cross-section and greater depth of the second orifice section 3213 naturally create a throttling effect. This helps control the flow velocity of the oil from the oil reservoir 310 to the first connecting pipe 322, avoiding pressure fluctuations caused by excessively rapid oil flow, ensuring stable oil pressure inside the compressor, and improving the overall operating efficiency of the system.

[0050] Furthermore, the oil storage section 300 also includes: a second throttling element 330, which is disposed inside the first connecting pipe 322 and is in contact with the pipe wall of the first connecting pipe 322. The second throttling element 330 is provided with a throttling channel 331, which is recessed relative to the surface of the second throttling element 330 and is spirally arranged along the extension direction of the second throttling element 330.

[0051] The addition of the second throttling element 330, especially inside the first connecting pipe 322, enables secondary throttling of the oil flowing from the oil reservoir 310. The spiral design of the throttling channel 331, compared to a straight channel, significantly extends the oil's flow path and increases flow resistance, allowing the oil to pass through at lower pressure and achieving more effective pressure regulation. The spiral channel design also promotes turbulence during oil flow, facilitating further separation of tiny air bubbles and improving oil quality.

[0052] The mounting body 321 has a protrusion 3214 on its side. The protrusion 3214 extends along the circumferential direction of the mounting body 321. At least a portion of the protrusion 3214 is in contact with the inner wall of the oil storage cavity 310. There are multiple protrusions 3214, and the multiple protrusions 3214 are spaced apart along the thickness direction of the mounting body 321.

[0053] The protrusion 3214 fits snugly against the inner wall of the oil reservoir 310, providing additional sealing when the throttling element is installed inside the oil reservoir. This design utilizes the elastic deformation properties of the protrusion 3214 to ensure tight contact between the throttling element and the oil reservoir, effectively preventing oil leakage from the gap between them even when the compressor vibrates or tilts during operation, thus enhancing the stability and sealing performance of the entire system.

[0054] In this application, as Figure 1 and Figure 9 As shown, the oil return channel 400 includes a first channel section 410, a second channel section 420, and a third channel section 430. The compressor also includes a scroll plate support 500, with a stationary scroll plate 200 and a moving scroll plate 600 respectively mounted on the scroll plate support 500. Wear-resistant plates 510 are also mounted on the scroll plate support 500, with the stationary scroll plate 200 and the moving scroll plate 600 respectively in contact with the wear-resistant plates 510. The first channel section 410 is mounted on the wear-resistant plates 510, the second channel section 420 is mounted on the scroll plate support 500, and the third channel section 430 is mounted on the moving scroll plate 600. The oil in the oil storage section 300 flows sequentially through the first channel section 410, the second channel section 420, and the third channel section 430 before returning to the oil sump 110.

[0055] Before flowing back to the oil sump 110, the oil needs to pass through the return oil channels of the wear-resistant plate 510, the scroll plate support 500, and the moving scroll plate 600 in sequence. This path design increases the contact time between the oil and the key components of the compressor, allowing the oil to absorb and release heat more fully during the return process, thereby improving the cooling effect of the oil. The segmented return oil channel design ensures uniform distribution of the oil during the return process. The first channel segment 410 is located on the wear-resistant plate 510, which can directly lubricate the contact surfaces between the scroll plates; the second channel segment 420 is located on the scroll plate support 500, which provides lubrication for the support bearings, etc.; the third channel segment 430 is located on the moving scroll plate 600, which ensures sufficient lubrication inside the moving scroll plate 600. This multi-stage lubrication mechanism ensures the uniformity and continuity of lubrication of various components of the compressor, reduces lubrication dead zones, and improves the operating efficiency and reliability of the compressor. The multi-stage design of the return oil channel 400 helps to reduce the backflow of high-pressure gas in the oil circuit system. During the oil reflux process, high-pressure gas is difficult to flow in the reverse direction through the complex path of the first channel section 410, the second channel section 420 and the third channel section 430, thereby reducing the risk of gas channeling between the high-pressure area and the low-pressure area and improving the thermodynamic efficiency of the compressor.

[0056] In the first embodiment provided in this application, such as Figure 10 and Figure 11 As shown, the oil storage unit 300 includes multiple oil storage chambers 310, which are spaced apart along the circumferential direction of the stationary vortex disk 200; there are multiple first channel sections 410, each corresponding to one of the multiple oil storage chambers 310, and each first channel section 410 includes a first oil outlet 411 and a first oil inlet 412; there are multiple second channel sections 420, each corresponding to one of the multiple oil storage chambers 310, and each first channel section 410 includes a first oil outlet 411 and a first oil inlet 412; The second channel section 420 includes a first oil storage groove 421, which is a strip-shaped structure. The first oil storage groove 421 has a first oil inlet 422 and a first oil outlet 423. The oil in one of the multiple oil storage chambers 310 flows sequentially through the first oil outlet 411, the first oil inlet 422 and the first oil storage groove 421, and then flows through the first oil outlet 422 and the first oil inlet 412 to the adjacent other oil storage chamber 310.

[0057] The design of multiple oil storage chambers 310 allows the oil to remain and separate at multiple different locations before entering the compressor's return oil circulation, increasing the oil's residence time and space, thereby improving the efficiency of oil-gas separation. This multi-stage separation mechanism effectively reduces the amount of oil carried on the compressor's exhaust side, lowering the oil discharge rate. The first oil storage groove 421 in the second channel section 420 has a strip-shaped structure, with a first oil inlet 422 and a first oil outlet 423, forming a buffer zone and throttling section for the oil. When the oil passes through the first oil storage groove 421, its flow path is extended and its flow velocity is reduced, achieving further throttling and stabilizing oil pressure. At the same time, the strip-shaped structure helps to further separate air bubbles in the oil, improving oil quality.

[0058] Multiple oil storage chambers 310 include an end oil storage chamber 311. The oil in the end oil storage chamber 311 flows sequentially through the corresponding first oil outlet 411, first oil storage groove 421 and first oil inlet 412, and then flows into the third channel section 430.

[0059] The design of multiple oil storage chambers 310 means that the lubricating oil will undergo multiple sedimentation and separation processes before flowing back to the oil sump at the bottom of the compressor. This multi-stage separation mechanism can significantly reduce the air bubble content in the lubricating oil and improve the purity of the oil. The final oil storage chamber 311, as the last stop in the oil return path, plays a role in the final filtration and stabilization of the oil.

[0060] In the second embodiment provided in this application, such as Figure 12 As shown, the oil storage section 300 includes multiple oil storage chambers 310, which are spaced apart along the circumferential direction of the stationary vortex disk 200. The first channel section 410 includes multiple second oil storage grooves 413, a second oil outlet 414, and a second oil inlet 415. Two adjacent oil storage chambers 310 are connected through their corresponding second oil storage grooves 413, and the second oil inlet 415 is connected to the third channel section 430. Each of the multiple oil storage chambers 310 includes an end oil storage chamber 311. The oil in the end oil storage chamber 311 flows sequentially through the second oil outlet 414, the second channel section 420, and the second oil inlet 415 before flowing into the third channel section 430. Each of the second oil storage grooves 413 has a second oil inlet and a second oil outlet at both ends. The oil enters the second oil storage groove 413 through the second oil inlet and flows out through the second oil outlet.

[0061] Two adjacent oil storage chambers 310 are connected by a second oil storage groove 413. This design not only provides a path for oil flow but also serves as a throttling and flow control mechanism. The geometry (such as width and depth) of the second oil storage groove 413 can be designed as a specific throttling curve to accommodate the oil transfer requirements between different oil storage chambers 310. The end oil storage chamber 311 provides a stable outlet for oil to return to the third channel section 430. Before entering the second channel section 420 through the second oil outlet 414, the oil can undergo further sedimentation and separation in the end oil storage chamber 311, preventing air bubbles or impurities carried in the oil from affecting the normal operation of the compressor. Furthermore, the combined use of the second oil outlet 414 and the second oil inlet 415 ensures the continuity and smoothness of the oil return path. Even under conditions of equipment tilting or vibration, the oil can stably return to the oil sump 110, improving the stability of compressor operation.

[0062] In the third embodiment provided in this application, such as Figure 13 As shown, the oil storage section 300 includes multiple oil storage chambers 310, which are spaced apart along the circumferential direction of the stationary vortex disk 200; multiple third oil storage grooves 210 are provided on the bottom surface of the stationary vortex disk 200, and two adjacent oil storage chambers 310 are connected through the corresponding third oil storage grooves 210; the multiple oil storage chambers 310 include end oil storage chambers 311, and the oil in the end oil storage chambers 311 flows through the first channel section 410 and the second channel section 420 in sequence, and then flows into the third channel section 430.

[0063] Through the circulation of oil between multiple oil reservoirs 310, combined with the connecting effect of the third oil reservoir 210, a multi-stage throttling oil return path is formed. As the oil flows through each oil reservoir 310 and the third oil reservoir 210, its flow rate and pressure are regulated, helping to control the pressure distribution during the oil return process. The third oil reservoir 210 not only increases the buffer space on the oil return path but also promotes a more even distribution of oil to each oil reservoir 310. This layout ensures that the lubricating oil can be fully circulated and utilized within the compressor before returning to the oil sump, improving oil efficiency.

[0064] In the specific implementation process, such as Figure 2 As shown, the oil return channel 400 also includes a fourth channel section 440, and the compressor also includes a second connecting pipe 120. The fourth channel section 440 is located at the bottom of the scroll plate support 500. One end of the second connecting pipe 120 is connected to the fourth channel section 440, and the other end extends into the oil sump 110.

[0065] The fourth channel section 440, located at the bottom of the scroll plate support 500, provides a direct connection for the oil from the third channel section 430 to the oil sump 110, ensuring a smooth transition of the oil in the final return path. One end of the second connecting pipe 120 is tightly connected to the fourth channel section 440, and the other end extends directly into the oil sump 110. This direct and simple connection significantly reduces energy loss during the oil return process. The oil can return to the oil sump without going through a complex, circuitous path, reducing frictional resistance during the return process. The direct connection between the second connecting pipe 120 and the fourth channel section 440 ensures the stability of the oil return flow even when the compressor is tilted or vibrating.

[0066] The housing 100 includes an end cover 130, an oil-gas separation chamber 101 is disposed inside the end cover 130, and an oil return channel 400 includes a fifth channel section 450 and a sixth channel section 460 that are interconnected. The fifth channel section 450 is disposed on the end cover 130, and the sixth channel section 460 is disposed on the stationary vortex disk 200. The fifth channel section 450 is connected to the oil-gas separation chamber 101, and the sixth channel section 460 is connected to the oil storage section 300. The oil in the oil-gas separation chamber 101 flows sequentially through the fifth channel section 450 and the sixth channel section 460 before flowing into the oil storage section 300. A filter component 451 is disposed in the fifth channel section 450; and / or, the sixth channel section 460 is inclined relative to the axis of the stationary vortex disk 200.

[0067] By installing a filter component 451 in the fifth channel section 450, the oil in the oil-gas separation chamber 101 is first filtered and purified before flowing back to the oil storage section 300. The filter component 451 can effectively remove impurities and small particles from the oil. The sixth channel section 460 is inclined relative to the axis of the stationary scroll plate 200. This design adjusts the angle of oil return, which helps the oil flow into the oil storage section 300 more smoothly. When the compressor is tilted or vibrating, the tilting of the sixth channel section 460 can effectively cope with the change in the direction of oil flow, ensuring that the oil flows smoothly into the oil storage section 300. This reduces the risk of difficulty or interruption in oil return caused by equipment tilting or vibration, and enhances the stability and reliability of the oil circulation system of the compressor in complex moving scenarios.

[0068] Traditional low-pressure scroll compressors have a small exhaust chamber, resulting in insufficient retention and separation of oil mist carried in the exhaust. The oil mist deposits are carried away by the gas and discharged from the compressor, affecting oil separation, deposition, and storage. This leads to a high oil discharge rate, and when the compressor's internal lubricating oil drains into the system with poor oil return, oil shortages can easily occur, causing compressor reliability failures. In harsh tilting environments, the oil level in the oil reservoir within the end cover exhaust chamber fluctuates significantly. Figure 1The vertically mounted compressor shown has virtually no oil level when operating in an inclined environment. The oil return port in the exhaust chamber may be exposed due to poor oil storage in the oil reservoir or the inclined oil level, causing high-pressure exhaust gas to enter the oil passage and return to the suction side, leading to high-pressure gas leakage and internal leakage, thus reducing performance. Utilizing the technical solution in the above embodiments of this application, an oil circuit system combining an oil reservoir, a high-pressure oil throttle, and an oil passage is proposed. This system effectively returns the separated lubricating oil to the oil reservoir for storage, while simultaneously supplying lubrication to moving parts. This solves the problem of reliable lubrication and heat dissipation of bearings and friction pairs under inclined conditions, ensuring reliable compressor operation. It also effectively reduces the compressor's oil discharge rate, improves compressor performance, and is suitable for applications in harsh inclined environments.

[0069] The above-mentioned technical solutions of this application can also solve the following technical problems: 1) The exhaust end cover space is limited, the exhaust chamber is small, the oil storage chamber is small, and the oil storage is limited after oil separation and is carried away by the exhaust, resulting in a large oil discharge rate; 2) In the tilted state, the small oil storage chamber of the exhaust side end cover is insufficient to store oil, and the oil return port is not covered by oil and is exposed in the exhaust, causing some exhaust gas to flow back to the suction side along the oil return channel, causing gas leakage on the high and low pressure sides and resulting in performance degradation; 3) In the tilted state, the oil level fluctuation at the bottom of the compressor affects the oil pump's oil suction, and poor oil supply affects the bearing lubrication and heat dissipation.

[0070] This application employs a combined structure of an oil reservoir, a throttle, and an oil channel on the stationary plate. It utilizes exhaust oil separation and throttling return oil lubrication to counteract the impact of poor bottom oil suction on reliable lubrication and heat dissipation of bearings and other moving parts during compressor tilting. The oil reservoir effectively resists the effects of oil level fluctuations during tilting, ensuring a certain oil level submerges the return port even when tilted, guaranteeing exhaust oil separation, oil storage, and stable oil return. This reduces the risk of high-pressure exhaust gas returning to the suction side and causing internal leakage. The oil reservoir and oil circuit structure of this invention effectively solves the lubrication and heat dissipation problems of bearings and other moving parts under harsh tilting operation conditions of the compressor, while reducing oil discharge, improving compressor performance and operational reliability, and adapting to the application needs of refrigeration equipment in mobile scenarios.

[0071] like Figure 2 As shown, the compressor drives the crankshaft to rotate under the drive of the motor. At this time, the bottom oil pump connected to the crankshaft draws in oil and lubricates the oil along the oil hole channel on the crankshaft to the scroll bearing 610 and the bracket bearing 520 for lubrication. After lubrication, the oil enters the second connecting pipe 120 along the internal oil passage and returns to the oil storage tank at the bottom of the compressor, thus completing the oil suction lubrication circulation flow.

[0072] Meanwhile, driven by the crankshaft rotation, the moving scroll 600 and the stationary scroll 200 mesh to form a crescent-shaped compression chamber, continuously generating a flow from intake, compression, and exhaust. The compressed refrigerant gas enters the oil-gas separation chamber from the exhaust port of the end cover 130 and rotates centrifugally around the oil-gas separator 140 for oil-gas separation. The separated refrigerant gas is discharged from the compressor through the central hole of the oil-gas separator 140. The centrifugally separated lubricating oil rotates along the wall of the oil-gas separation chamber to the fifth channel section 450, and then flows back to the scroll bearing 610 and the support bearing 520 for lubrication along the high-pressure return oil circuit. The lubricating oil then flows back to the oil sump at the bottom of the compressor along the return oil pipe (second connecting pipe 120) connected to the chamber of the support bearing 520. This completes the oil circulation flow of intake oil lubrication pump body and exhaust oil separation return oil. The dual oil circuit lubrication path of oil pump intake lubrication and exhaust oil separation return lubrication ensures lubrication and heat dissipation of each bearing and pump body end face, ensuring reliable lubrication operation of the compressor.

[0073] Example 1: As Figure 9 As shown, a high-pressure oil storage chamber 310 is provided on the outer periphery of the stationary vortex disk 200 to store the lubricating oil separated from the exhaust gas. The depth of the storage chamber 310 is greater than its cross-sectional dimension (it is recommended to be more than twice the depth). The inlet of the storage chamber is located on the end face of the exhaust side of the stationary disk. The sixth channel section 460 is inclinedly opened on the stationary disk base plate and passes through and connects with the storage chamber 310 and the inlet of the storage chamber to form a high-pressure oil circuit. The high-pressure oil separated from the exhaust gas enters the storage chamber along the sixth channel section 460 for accumulation and storage. Figure 9 As shown.

[0074] An oil hole is provided at the bottom of the oil reservoir 310, and a first throttling element 320 is installed at the bottom. The outlet of the first throttling element 320 is connected to the oil hole. The main function of the first throttling element 320 is to reduce the high-pressure oil flow and guide it to the bearings and moving parts for lubrication. A sealing element 220 is installed on the upper part of the oil reservoir 310 to seal the oil reservoir 310. The first throttling element 320 is as follows: Figure 5 and Figure 6 As shown.

[0075] The cross-sectional profile of the mounting body 321 corresponds to and matches the cross-sectional profile of the oil storage cavity 310. The mounting body 321 is made of deformable refrigerant-resistant and oil-resistant material (such as plastic HNBR or NBR or other materials), or it is made of a rigid material in the center with deformable refrigerant-resistant and oil-resistant material embedded in the outside. The mounting body 321 has a flow groove 3210 and a flow channel 3211 in the axial direction of the base. The second hole section 3213 is opened near the first hole section 3212 and connects to the first hole section 3212, serving as an oil inlet to facilitate flow into the first connecting pipe 322. The protrusion 3214 is opened around the outer periphery of the mounting body 321 base, can be squeezed and deformed, and can be set in multiple layers to enhance the sealing performance. The protrusion is mainly set to contact the inner wall of the oil storage cavity to deform and seal the oil cavity.

[0076] The throttling section comprises a first connecting tube 322 or a second throttling element 330. The first connecting tube 322 may be a throttling capillary tube, or the second throttling element 330 may be installed inside the first connecting tube 322 to form the throttling section. The first connecting tube 322 and the second throttling element 330 may be made of deformable metal or plastic, and can be bent and deformed (e.g., Figure 7 (As shown in the deformed unfolded diagram), it is easy to bend and shape for installation within the oil reservoir 310. Figure 6 As shown. After the first connecting pipe 322 is bent and deformed, both ends of the round pipe are fixedly installed on the two flow hole grooves 3210 and the flow channel 3211 on the mounting body 321. In this way, the high pressure oil in the oil storage chamber 310 can enter the second hole section 3213 through the first hole section 3212, and enter one end of the first connecting pipe 322. After being throttled and depressurized by the first connecting pipe 322 or the second throttling element 330, it flows out from the oil hole.

[0077] The sealing element 220 includes a first sealing body 221, a second sealing body 222, and a sealing protrusion 223. It is made of a deformable, refrigerant- and oil-resistant material (such as plastic HNBR or NBR, or other materials), or is made by embedding a deformable, refrigerant- and oil-resistant material around a rigid material in the center. The cross-sectional profile of the second sealing body 222 corresponds to and matches the cross-sectional profile of the oil storage cavity 310. The sealing protrusion 223 surrounds the outer periphery of the second sealing body 222, is deformable by compression, and can be multi-layered to enhance sealing. The first sealing body 221 is abutted against the end face of the stationary plate substrate, and the sealing protrusion 223 is embedded in the oil storage cavity 310 and contacts the inner wall of the oil storage cavity to deform and seal the oil cavity.

[0078] High-pressure oil storage and flow path implementation instructions: The high-pressure oil separated by centrifugation from the exhaust gas enters the oil storage chamber inlet on the base plate of the static vortex disk 200 directly after being filtered by the filter component 451 through the fifth channel section 450. Then, it enters the oil storage chamber 310 along the sixth channel section 460 for oil accumulation and storage.

[0079] High-pressure oil flow path as follows Figure 9 As shown by the dashed arrow, some of the gas carried by the returning high-pressure oil enters the relatively large oil storage chamber 310 and is further separated and deposited. The gas is located in the upper part of the oil storage chamber 310, while the high-pressure oil is deposited in the lower part of the oil storage chamber 310, forming an oil level of a certain height, submerging and covering the oil inlet of the first throttling element 320 (e.g., Figure 3 (As shown in the partial cross-sectional view), the high-pressure oil then flows out from the oil hole after being throttled and depressurized by the first throttling element 320. It then enters the second channel section 420 through the oil inlet of the first channel section 410 on the wear-resistant plate 510, and then enters the third channel section 430 on the moving plate through the oil outlet of the second channel section 420 on the wear-resistant plate 510. Along the third channel section 430, it enters the bearing chamber of the moving scroll plate 600 to lubricate the scroll plate bearing 610 and the support bearing 520 along the way. Finally, it flows back to the oil sump at the bottom of the compressor through the second connecting pipe 120.

[0080] The wear-resistant plate 510 is installed on the upper end of the scroll plate bracket 500. The back of the substrate of the moving scroll plate 600 abuts against one end face of the wear-resistant plate 510. At the same time, the stationary scroll plate 200 abuts against the wear-resistant plate 510 and is pressed onto the wear-resistant plate 510 by the end cover 130.

[0081] The first channel section 410 is formed on the end face of the wear-resistant plate 510, including an oil inlet hole on the outer side and an oil outlet hole on the inner side of the second channel section 420. The second channel section 420 is formed on the upper end face of the scroll plate support 500, and is composed of a first oil inlet 422 near the outer side, a first oil outlet 423 near the inner side, and a first oil storage groove 421 connected together. The third channel section 430 is formed on the back side of the moving scroll plate 600, and is composed of an axial oil hole, an oil inlet hole, and a radial oil outlet hole connected to each other.

[0082] Alternative Example 2: Unlike Example 1, this example features multiple oil storage chambers 310 and multiple oil holes on the outer periphery of the stationary scroll disk 200, multiple oil inlet holes in the first channel section 410 on the wear-resistant plate 510, and multiple circumferentially and radially arranged second channel sections 420 on the scroll disk support 500. Figure 11 As shown. During assembly, the oil holes correspond to the first oil inlet 412 of the first channel section 410 on the wear-resistant plate and the second channel section 420 on the scroll plate support 500. Multiple oil storage chambers 310 are connected to the oil inlet of the first channel section 410 and the second channel section 420 on the wear-resistant plate through the oil holes, realizing multiple storage chambers for oil. When the cross-sectional dimensions of the oil inlet of the first channel section 410 and the second channel section 420 are small, the high-pressure return oil can be reduced and throttled.

[0083] like Figure 10As shown, a first throttling element 320 can be installed in multiple oil storage chambers 310 to adjust the pressure in multiple stages, realize multi-stage throttling and pressure reduction in multiple oil storage chambers, effectively store more return oil and separate the refrigerant bubbles carried in the return oil back to the suction pressure zone.

[0084] Description of high-pressure oil storage and flow path: The high-pressure oil flow path is shown by the dashed arrow. After entering the first oil storage chamber 310, the high-pressure oil enters the first first oil outlet 411 and the first second channel section 420 through the first oil hole, then enters the second oil storage chamber 310 through the first oil inlet 412, and then enters the second first oil outlet 411 and the second second channel section 420 through the third oil hole. After that, it enters the third oil storage chamber 310 through the second first oil inlet 412 and the fourth oil hole. Then, it enters the third second channel section 420 through the fifth oil hole and the third first oil outlet 411. After that, it enters the third channel section 420 through the oil outlet of the second channel section 420 and flows to the moving scroll 600 in the third channel section 430, lubricating the moving scroll bearing 610 and the support bearing 520 along the way. Finally, it flows back to the oil sump at the bottom of the compressor through the second connecting pipe 120.

[0085] When more oil storage chambers 310 are provided on the stationary plate, the above steps can be repeated, and oil storage and throttling can be performed according to the connection pattern of the first channel segment 410 and the second channel segment 420. Other structures in this embodiment are the same as in embodiment 1.

[0086] Alternative embodiment 3: Unlike embodiment 2, the wear-resistant sheet in this embodiment is provided with a plurality of first channel segments 410, wherein the first channel segment 410 includes a second oil storage groove 413, the second oil storage groove 413 connects two oil holes in the corresponding first channel segment 410, and the plurality of first channel segments 410 are arranged along the circumference of the wear-resistant sheet.

[0087] High-pressure oil storage and flow path implementation instructions: The high-pressure oil flow path is as follows: Figure 12 As shown by the dashed arrow, after the high-pressure oil enters the first oil storage chamber 310, it enters the first first channel section 410 through the first oil hole, then enters the second oil storage chamber 310 through the second oil hole, then enters the second first channel section 410 through the third oil hole, then enters the third oil storage chamber 310 through the fourth oil hole, and then enters the second channel section 420 on the scroll plate support through the fifth oil hole and the fifth first oil outlet hole 411. Afterwards, it enters the third channel section 430 of the moving scroll plate 600 through the oil outlet hole of the second channel section 420 on the wear-resistant plate, flowing towards the moving plate bearing and lubricating the scroll plate bearing 610 and the support bearing 520 along the way. Finally, it flows back to the oil sump at the bottom of the compressor through the second connecting pipe 120. Other structures in this embodiment are the same as in Embodiment 2.

[0088] Alternative Example 4: Unlike Example 2, in this example, multiple third oil storage grooves 210 are circumferentially provided on one end face of the vortex teeth of the stationary vortex disk 200. These third oil storage grooves 210 are interconnected with two oil holes in the oil storage chambers 310 on both sides. Figure 13 As shown.

[0089] High-pressure oil storage and flow path implementation instructions (Example 4): The high-pressure oil flow path is as follows Figure 13 As shown by the dashed arrow, after the high-pressure oil enters the first oil storage chamber 310, it enters the first third oil storage groove 210 through the first oil hole, then enters the second oil storage chamber 310 through the second oil hole, and then enters the second third oil storage groove 210 through the third oil hole. Afterwards, it enters the third oil storage chamber 310 through the fourth oil hole, and then enters the second channel section 420 on the bracket through the fifth oil hole and the first oil outlet 411 on the wear-resistant plate. Afterwards, it enters the third channel section 430 of the moving scroll plate 600 through the oil outlet of the second channel section 420 on the wear-resistant plate, flowing towards the moving plate bearing and lubricating the scroll plate bearing 610 and the bracket bearing 520 along the way. Finally, it flows back to the oil sump at the bottom of the compressor through the second connecting pipe 120. Other structures in this embodiment are the same as in Embodiment 2.

[0090] The oil storage cavity 310 in the above embodiments can be an irregularly shaped structure or a circular structure (such as...). Figure 14 As shown in the figure, the base of the first throttling element 320 is matched with an irregular or circular structure, not limited to the cross-sectional structure described in the above embodiments. The above embodiments make full use of the non-working area of ​​the stationary plate to set an oil storage chamber structure in the axial direction on the outer peripheral side of the stationary plate, which can store more lubricating oil separated from the exhaust, resist the influence of the compressor tilt state to adapt to harsh road conditions, and the solution is also highly implementable. Through the combination structure of the oil storage chamber and throttling element or throttling oil channel in the above embodiments, the exhaust oil separation and storage capacity can be realized, ensuring smooth oil return to lubricate the compressor bearings and various moving parts, improving operational reliability, while reducing the compressor oil discharge rate to improve performance, enabling the compressor to adapt to the different changing positions and postures of refrigeration equipment in mobile scenarios.

[0091] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0092] The compressor provided in this application features an added oil reservoir 300 and an improved oil return channel 400 design, which ensures a good oil supply even when the compressor is subjected to changes in the working environment such as tilting and vibration, thus avoiding mechanical failures and performance degradation caused by poor lubrication. This significantly improves the oil residence time and separation efficiency, and reduces the oil discharge rate during compressor operation. The main function of the oil reservoir 300 is to establish an independent oil storage area on the stationary scroll plate 200. Unlike traditional designs that rely solely on the oil sump at the bottom of the casing, the oil reservoir 300 can better capture the oil separated from the oil-gas separation chamber 101. Even under harsh operating conditions such as compressor tilting or vibration, it ensures that the oil is not carried away by the exhaust gas too quickly, but rather can effectively remain, separate, and accumulate within the oil reservoir 300. At least a portion of the oil return channel 400 is located within the casing 100, playing a crucial role in guiding the oil in the oil reservoir 300 and ultimately returning it to the oil sump 110 at the bottom of the casing 100. This method not only achieves effective oil recovery but also prevents high-pressure gas from flowing back to the suction side through the oil return path, thereby reducing internal leakage and improving the overall performance of the compressor.

[0093] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A compressor, comprising a housing (100) and a stationary scroll plate (200), the stationary scroll plate (200) being disposed within the housing (100), and an oil-gas separation chamber (101) being provided on the housing (100), characterized in that, The compressor also includes: An oil storage unit (300) is disposed on the static vortex disk (200), and the oil storage unit (300) is connected to the oil-gas separation chamber (101); An oil return channel (400) is provided in the housing (100) at least part of which is connected to the oil storage section (300) and the oil sump (110) at the bottom of the housing (100) respectively. The oil in the oil-gas separation chamber (101) flows back to the oil sump (110) after passing through the oil storage section (300) and the oil return channel (400) in sequence. The oil storage section (300) includes: Multiple oil storage chambers (310) are disposed on the static vortex disk (200), and the multiple oil storage chambers (310) are spaced apart along the circumferential direction of the static vortex disk (200); the oil storage chambers (310) are respectively connected to the oil-gas separation chamber (101) and the oil return channel (400); The first throttling element (320) is disposed in the oil storage chamber (310). The oil in the oil storage chamber (310) flows into the return oil channel (400) after being throttled by the first throttling element (320). The bottom surface of the static vortex disk (200) is provided with a plurality of third oil storage grooves (210), and two adjacent oil storage chambers (310) are connected through the corresponding third oil storage grooves (210). The return oil channel (400) includes a first channel section (410), a second channel section (420) and a third channel section (430), and the plurality of oil storage chambers (310) include an end oil storage chamber (311). The oil in the end oil storage chamber (311) flows sequentially through the first channel section (410) and the second channel section (420) and then flows into the third channel section (430). The compressor also includes: A scroll plate support (500) is provided, wherein a stationary scroll plate (200) and a moving scroll plate (600) are respectively disposed on the scroll plate support (500), and a wear-resistant plate (510) is also disposed on the scroll plate support (500), wherein the stationary scroll plate (200) and the moving scroll plate (600) are respectively attached to the wear-resistant plate (510); The first channel section (410) is disposed on the wear-resistant plate (510), the second channel section (420) is disposed on the scroll plate support (500), and the third channel section (430) is disposed on the moving scroll plate (600). The oil in the oil storage section (300) flows through the first channel section (410), the second channel section (420) and the third channel section (430) in sequence and then flows back to the oil pool (110).

2. The compressor according to claim 1, characterized in that, The first throttling element (320) includes: The mounting body (321) is disposed in the oil storage cavity (310). The mounting body (321) is provided with a flow groove (3210) and a flow channel (3211). The flow groove (3210) and the flow channel (3211) are respectively located at both ends of the mounting body (321). The flow channel (3211) is disposed through the mounting body (321). The first connecting pipe (322) has two ends connected to the flow groove (3210) and the flow channel (3211) respectively. The oil at the oil inlet of the oil storage chamber (310) flows into the first connecting pipe (322) through the flow groove (3210), and then flows back to the return oil channel (400) through the flow channel (3211) and the oil outlet of the oil storage chamber (310) in sequence.

3. The compressor according to claim 2, characterized in that, The bottom surface of the mounting body (321) is in contact with the bottom surface of the oil storage cavity (310), and the flow groove (3210) includes: A first orifice section (3212) and a second orifice section (3213) are interconnected. The cross-sectional area of ​​the flow section of the first orifice section (3212) is larger than that of the flow section of the second orifice section (3213). The depth of the second orifice section (3213) is greater than that of the first orifice section (3212). At least a portion of the first connecting pipe (322) is connected to the second orifice section (3213). The oil flows into the first connecting pipe (322) after passing through the first orifice section (3212) and the second orifice section (3213) in sequence.

4. The compressor according to claim 2, characterized in that, The oil storage section (300) also includes: The second throttling element (330) is disposed inside the first connecting pipe (322) and is in contact with the pipe wall of the first connecting pipe (322). The second throttling element (330) is provided with a throttling channel (331). The throttling channel (331) is recessed relative to the surface of the second throttling element (330). The throttling channel (331) is spirally arranged along the extension direction of the second throttling element (330).

5. The compressor according to claim 2, characterized in that, The mounting body (321) has a protrusion (3214) on its side. The protrusion (3214) extends along the circumferential direction of the mounting body (321). At least a portion of the protrusion (3214) is in contact with the inner wall of the oil storage cavity (310). There are multiple protrusions (3214), and the multiple protrusions (3214) are spaced apart along the thickness direction of the mounting body (321).

6. The compressor according to claim 1, characterized in that, The oil storage section (300) includes a plurality of oil storage chambers (310), which are spaced apart along the circumferential direction of the static vortex disk (200). There are multiple first channel segments (410), and each of the multiple first channel segments (410) is provided in a one-to-one correspondence with a multiple oil storage chamber (310). Each first channel segment (410) includes a first oil outlet (411) and a first oil inlet (412). There are multiple second channel segments (420), and each of the multiple second channel segments (420) is arranged in a one-to-one correspondence with a multiple oil storage chamber (310). Each second channel segment (420) includes a first oil storage groove (421), which is a strip structure and has a first oil inlet (422) and a first oil outlet (423). Among them, the oil in one of the multiple oil storage chambers (310) flows sequentially through the first oil outlet (411), the first oil inlet (422) and the first oil storage groove (421), and then flows through the first oil outlet (423) and the first oil inlet (412) to the adjacent other oil storage chamber (310).

7. The compressor according to claim 6, characterized in that, The plurality of oil storage chambers (310) include an end oil storage chamber (311). The oil in the end oil storage chamber (311) flows sequentially through the corresponding first oil outlet (411), the first oil storage groove (421) and the first oil inlet (412) before flowing into the third channel section (430).

8. The compressor according to claim 1, characterized in that, The oil storage section (300) includes a plurality of oil storage chambers (310), which are spaced apart along the circumferential direction of the static vortex disk (200). The first channel section (410) includes a plurality of second oil storage grooves (413), a second oil outlet (414) and a second oil inlet (415). Two adjacent oil storage chambers (310) are connected through the corresponding second oil storage grooves (413), and the second oil inlet (415) is connected to the third channel section (430). The plurality of oil storage chambers (310) include an end oil storage chamber (311). The oil in the end oil storage chamber (311) flows sequentially through the second oil outlet (414), the second channel section (420) and the second oil inlet (415) and then flows into the third channel section (430).

9. The compressor according to claim 1, characterized in that, The oil return passage (400) also includes a fourth passage section (440), and the compressor also includes: The second connecting pipe (120) is located at the bottom of the vortex disk support (500). One end of the second connecting pipe (120) is connected to the fourth channel section (440), and the other end extends into the oil tank (110).

10. The compressor according to claim 1, characterized in that, The housing (100) includes an end cap (130), the oil-gas separation chamber (101) is disposed inside the end cap (130), and the oil return channel (400) includes a fifth channel section (450) and a sixth channel section (460) that are interconnected. The fifth channel section (450) is disposed on the end cap (130), and the sixth channel section (460) is disposed on the static vortex disk (200). The fifth channel section (450) is connected to the oil-gas separation chamber (101), and the sixth channel section (460) is connected to the oil storage part (300). The oil in the oil-gas separation chamber (101) flows through the fifth channel section (450) and the sixth channel section (460) in sequence and then flows into the oil storage part (300). The fifth channel segment (450) is provided with a filter element (451); and / or, The sixth channel segment (460) is inclined relative to the axis of the stationary vortex disk (200).

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