Static scroll for compressor and compressor

Abstract

The application discloses a static vortex disc for a compressor and the compressor. The static vortex disc for the compressor comprises a static disc body, the static disc body comprises an end face, at least one exhaust port is arranged on the end face, an oil pool recessed relative to the end face is arranged on the static disc body, the oil pool surrounds the at least one exhaust port, and an oil groove is further arranged on the end face, the oil groove is communicated with the oil pool, and at least part of the oil groove surrounds the exhaust port. Through the above scheme, the application can prevent impurities and foreign matters from adhering and stagnating on the end face, reduce the probability that an exhaust valve piece cannot be closed, and ensure the stable operation of the compressor.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and in particular to a static scroll plate for a compressor and a compressor. Background Technology

[0002] With the increasing prominence of environmental pollution and climate change, the global demand for clean energy is constantly growing. As new energy vehicles are one of the main alternatives to traditional fuel-powered vehicles, the widespread application of electric scroll compressors has become inevitable. Due to its unique structural design, the normal operation of a scroll compressor depends on the good sealing performance of the exhaust valve plates, pressure / temperature stability, airflow continuity, system cleanliness, and the synergistic effect of lubrication and cooling.

[0003] In existing technologies, during the processing, installation, and operation of scroll compressor components, residual or worn impurities and carbon deposits may follow the compressor refrigerant flow through the scroll exhaust port and adhere to and become stuck at the contact point between the stationary scroll plate and the exhaust valve plate. This can lead to incomplete closure of the exhaust valve plate, resulting in decreased compressor compression efficiency, gas whistling, mechanical vibration, and even causing the exhaust valve plate to be in a high-frequency fluttering state for a long time, leading to valve plate breakage and compressor reliability issues. Utility Model Content

[0004] The main technical problem solved by this application is to provide a static scroll plate for a compressor and a compressor, which can prevent impurities and foreign objects from adhering and getting stuck on the end face, reduce the probability of the exhaust valve plate failing to close, and ensure the stable operation of the compressor.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a stationary scroll plate for a compressor, including a stationary plate body, the stationary plate body including an end face, the end face having at least one exhaust port, the stationary plate body having an oil sump recessed relative to the end face, the oil sump surrounding the at least one exhaust port, the end face also having an oil groove, the oil groove communicating with the oil sump, and at least a portion of the oil groove surrounding the exhaust port.

[0006] The at least one exhaust port includes a main exhaust port and a secondary exhaust port, and the oil tank includes a first oil tank and a second oil tank. The first oil tank surrounds the main exhaust port, and the second oil tank surrounds the secondary exhaust port. This arrangement ensures that impurities discharged from the main exhaust port in all directions can flow into the oil pool through any of the first oil tanks. Simultaneously, it ensures that impurities discharged from the secondary exhaust port in all directions can flow into the oil pool through the corresponding second oil tank. This technical solution provides corresponding oil tanks for different exhaust ports, with each oil tank corresponding to one exhaust port, ensuring that impurities discharged from each exhaust port do not interfere with each other and can all be promptly discharged into the corresponding oil tank.

[0007] The width of the first oil tank is greater than or equal to the width of the second oil tank. The first oil tank corresponds to the main exhaust port with a larger diameter, and the second oil tank corresponds to the auxiliary exhaust port with a smaller diameter. Since the main exhaust port can usually discharge more impurities, setting a wider first oil tank can carry more impurities and quickly discharge them into the oil pool, which is more conducive to the discharge of impurities.

[0008] The oil tank further includes a first connecting groove, the two ends of which are respectively connected to the second oil tank and the oil pool. By setting the first connecting groove between the second oil tank and the oil pool, the second oil tank and the oil pool are connected, facilitating the discharge of impurities from the second oil tank.

[0009] The first connecting groove is multiple, and these grooves are arranged circumferentially outside the secondary exhaust port. Having multiple first connecting grooves allows for faster discharge of impurities from the second oil tank to the oil sump.

[0010] The oil tank further includes a second connecting groove, with its two ends connected to the first oil tank and the second oil tank, respectively. This technical solution uses a second connecting groove to connect the first and second oil tanks, preventing oil path blockage and ensuring the smooth discharge of impurities. In other embodiments, the number of second connecting grooves can be increased.

[0011] The end face is further provided with a mounting hole. The stationary vortex disk also includes an exhaust valve plate, which is disposed on one side of the end face and covers at least one exhaust port. The end of the exhaust valve plate away from the exhaust port is fixedly connected to the mounting hole. The oil trough also includes a third oil trough, which surrounds the mounting hole. This technical solution provides a third oil trough near the mounting hole, so that impurities flow into the third oil trough before or after moving to the fixed end of the exhaust valve plate, and are discharged into the oil pool through the third oil trough.

[0012] There are multiple third oil tanks, which are arranged in a staggered manner.

[0013] The bottom wall of the oil tank is flush with the bottom wall of the oil pool. This facilitates processing and ensures unobstructed oil flow.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a compressor, including the static scroll plate for compressor described in any of the technical solutions.

[0015] The beneficial effects of this application are as follows: Unlike existing technologies, this application provides an oil groove on the end face of the stationary disc body, and at least part of the oil groove surrounds the exhaust port and connects to the oil sump. When impurities, carbon deposits, and other foreign matter generated by residual or working wear are discharged through the exhaust port along with the compressor refrigerant airflow, the foreign matter can be carried into the oil groove around the exhaust port by the airflow or the flow of the refrigerant oil, and then flow into the oil sump with the refrigerant oil. This prevents foreign matter from adhering to the end face of the exhaust port for a long time. After the impurities are discharged into the oil sump, it ensures that the exhaust valve plate is completely fitted with the exhaust port, ensuring a closing effect and ensuring high reliability of the compressor. At the same time, since the oil groove of this application is formed by machining on the original end face, it ensures that the end face always has a high flatness, which can ensure the fit between the exhaust valve plate and the end face. Attached Figure Description

[0016] Figure 1 This is a perspective schematic diagram of an embodiment of the static disk body of this application;

[0017] Figure 2 This is a top view schematic diagram of an embodiment of the static disk body of this application;

[0018] Figure 3 This application Figure 2 Schematic diagram of cross section in the AA direction;

[0019] Figure 4 These are schematic diagrams of various cross-sectional structures of the oil tank in this application;

[0020] Figure 5 This is a perspective schematic diagram of an embodiment of the static scroll plate for a compressor according to this application;

[0021] Figure 6 This is an exploded schematic diagram of an embodiment of the static scroll plate for a compressor according to this application.

[0022] Reference numerals: 100, stationary vortex disk; 10, stationary disk body; 11, end face; 12, exhaust port; 121, main exhaust port; 122, auxiliary exhaust port; 13, oil sump; 14, oil groove; 141, first oil groove; 142, second oil groove; 143, third oil groove; 144, first connecting groove; 145, second connecting groove; 15, stationary vortex gear; 16, mounting hole; 20, exhaust valve plate; 21, fixed end; 30, valve plate limiting component; 40, fixing component. Detailed Implementation

[0023] To make the objectives, technical solutions, and effects of this application clearer and more explicit, the following detailed description is provided with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] For ease of understanding, the X-axis is shown in the attached diagram. The direction along the X-axis is referred to as the X-direction, which is the axial direction of the stationary scroll plate for the compressor.

[0025] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of one embodiment of the static disk body of this application. Figure 2 This is a top view of an embodiment of the static disk body of this application.

[0026] The compressor stationary scroll plate (not shown) of this application includes a stationary plate body 10, which includes stationary scroll teeth 15 and an end face 11 on the side away from the stationary scroll teeth 15. At least one exhaust port 12 is provided on the end face 11. An oil sump 13 is provided on the stationary plate body 10 that is recessed opposite to the end face 11. The oil sump 13 surrounds the at least one exhaust port 12. An oil groove 14 is also provided on the end face 11. The oil groove 14 communicates with the oil sump 13, and at least a portion of the oil groove 14 surrounds the exhaust port 12.

[0027] Specifically, see Figure 3 , Figure 3 This application Figure 2 A cross-sectional view along the AA direction. Because the oil tank 13 is recessed relative to the end face 11 in the X direction, the end face 11 where the exhaust port 12 is located protrudes from the bottom wall of the oil tank 13, forming a boss in the middle of the oil tank 13. At least a portion of the oil tank 14 can be disposed on the boss and arranged around the exhaust port 12.

[0028] This application provides an oil groove 14 on the end face 11 of the stationary disc body 10, and at least a portion of the oil groove 14 surrounds the exhaust port 12 and connects to the oil sump 13. When impurities, carbon deposits, and other foreign matter generated by residual or working wear are discharged through the exhaust port 12 along with the compressor refrigerant airflow, such as... Figure 3As indicated by the middle arrow, with the propulsion of airflow or the flow of refrigerant oil, foreign objects can be carried into the oil trough 14 around the exhaust port 12 and flow with the refrigerant oil into the oil sump 13. This prevents foreign objects from adhering to the end face 11 of the exhaust port 12 for a long time. After the impurities are discharged into the oil sump 13, it can be ensured that the exhaust valve plate 20 is completely fitted with the exhaust port 12, ensuring a closing effect and ensuring that the compressor has high reliability. At the same time, since the oil trough 14 of this application is formed by machining on the original end face 11, it ensures that the end face 11 always has a high flatness, which can ensure the fit between the exhaust valve plate and the end face 11.

[0029] Optionally, at least one exhaust port 12 includes a main exhaust port 121 and a secondary exhaust port 122. Specifically, in this embodiment, at least one exhaust port 12 includes one main exhaust port 121 and two secondary exhaust ports 122, with the two secondary exhaust ports 122 symmetrically arranged on both sides of the main exhaust port 121. The oil trough 14 includes a first oil trough 141 and a second oil trough 142, with the first oil trough 141 surrounding the main exhaust port 121 and the second oil trough 142 surrounding the secondary exhaust ports 122.

[0030] Specifically, both the main exhaust port 121 and the auxiliary exhaust port 122 are circular. In this embodiment, there are two first oil troughs 141, each arc-shaped, symmetrically arranged on both sides of the main exhaust port 121 and surrounding it. Each first oil trough 141 is positioned between the main exhaust port 121 and the auxiliary exhaust port 122, and both ends of each first oil trough 141 are connected to the oil pool 13. This arrangement allows impurities discharged from the main exhaust port 121 in all directions to flow into the oil pool 13 through any one of the first oil troughs 141. In this embodiment, there are also two second oil troughs 142, both circular, correspondingly arranged around the auxiliary exhaust port 122. This arrangement allows impurities discharged from the auxiliary exhaust port 122 in all directions to flow into the oil pool 13 through the corresponding second oil trough 142. In this embodiment, corresponding oil tanks 14 are provided for different exhaust ports 12, and the oil tanks 14 correspond one-to-one with the exhaust ports 12, so that the impurities discharged from each exhaust port 12 will not affect each other and can be discharged into the corresponding oil tanks 14 in a timely manner.

[0031] Specifically, see Figure 4 , Figure 4 This is a schematic diagram of various cross-sectional structures of the oil tank of this application. The oil tank 14 can be a rectangular tank, a U-shaped tank, a trapezoidal tank, or a V-shaped tank, etc., and this application does not make a specific limitation. Among them, the U-shaped tank, trapezoidal tank, or V-shaped tank 14 has at least partially inclined sidewalls. The above shape is more conducive to the concentration of impurities along the sidewalls of the oil tank 14 to the bottom, avoiding the accumulation of impurities on the sidewalls and affecting the subsequent entry of impurities into the oil tank 14.

[0032] Optionally, the width of the first oil tank 141 is greater than or equal to the width of the second oil tank 142. The first oil tank 141 corresponds to the main exhaust port 121 with a larger diameter, and the second oil tank 142 corresponds to the auxiliary exhaust port 122 with a smaller diameter. Since the main exhaust port 121 can usually discharge more impurities, by setting a wider first oil tank 141, more impurities can be carried and quickly discharged into the oil pool 13, which is more conducive to the discharge of impurities.

[0033] Optionally, the oil tank 14 further includes a first connecting groove 144, the two ends of which are respectively connected to the second oil tank 142 and the oil pool 13. In this embodiment, the second oil tank 142 and the oil pool 13 are separated by a boss. Therefore, by providing the first connecting groove 144 between the second oil tank 142 and the oil pool 13, the second oil tank 142 and the oil pool 13 are connected, which facilitates the discharge of impurities from the second oil tank 142.

[0034] Furthermore, there are multiple first connecting grooves 144, which are arranged circumferentially outside the secondary exhaust port 122. Specifically, in this embodiment, each second oil tank 142 is provided with three first connecting grooves 144, all three first connecting grooves 144 extending radially along the secondary exhaust port 122. The extension direction of two first connecting grooves 144 is perpendicular to the connecting line of the two second oil tanks 142, and the other first connecting groove 144 is located on the side of the secondary exhaust port 122 away from the main exhaust port 121. The angle between this first connecting groove 144 and the two adjacent first connecting grooves 144 on both sides is 90°. A total of six first connecting grooves 144 are symmetrically arranged relative to the main exhaust port 121 for the two second oil tanks 142. Providing multiple first connecting grooves 144 can more quickly discharge impurities in the second oil tank 142 to the oil pool 13. In other embodiments, the number of first connecting grooves 144 can also be other, and this application does not make a specific limitation.

[0035] Optionally, the oil tank 14 further includes a second connecting groove 145, the two ends of which are connected to the first oil tank 141 and the second oil tank 142, respectively. Specifically, in this embodiment, each second oil tank 142 is provided with a corresponding second connecting groove 145, and the second connecting groove 145 extends radially along the secondary exhaust port 122. Optionally, the second connecting groove 145 and the three first connecting grooves 144, a total of four connecting grooves, are evenly distributed along the circumference of the secondary exhaust port 122, that is, the included angle between any two adjacent connecting grooves is 90°, and the two second connecting grooves 145 are symmetrically arranged relative to the main exhaust port 121. In this embodiment, the second connecting groove 145 connects the first oil tank 141 and the second oil tank 142, avoiding the problem of oil circuit blockage and ensuring the smooth discharge of impurities. In other embodiments, the number of second connecting grooves 145 can also be increased.

[0036] Optionally, see Figure 2 and combined Figure 5 and Figure 6 , Figure 5 This is a perspective schematic diagram of an embodiment of the stationary scroll plate for a compressor according to this application. Figure 6 This is an exploded view of an embodiment of the stationary scroll plate for a compressor according to this application. The stationary scroll plate 100 also includes an exhaust valve plate 20 and a valve plate limiting member 30. A mounting hole 16 is also provided on the end face 11. A fixing member 40 is used in the mounting hole 16 to fix the exhaust valve plate 20 and the valve plate limiting member 30 to the end face 11 of the stationary scroll plate body 10. The exhaust valve plate 20 is disposed on one side of the end face 11 and covers at least one exhaust port 12. The end of the exhaust valve plate 20 away from the exhaust port 12 is fixedly connected to the mounting hole 16. The valve plate limiting member 30 is disposed on the side of the exhaust valve plate 20 away from the end face 11 and is fixedly connected to the mounting hole 16. The oil groove 14 also includes a third oil groove 143, which surrounds the mounting hole 16. In the absence of exhaust, the exhaust valve plate 20 is attached to the end face 11 and covers the three exhaust ports 12. When gas is discharged from the exhaust ports 12, impurities not only adhere to the exhaust ports 12, but also, because the gas pushes up the end of the exhaust valve plate 20 near the exhaust port 12, the fixed end 21 of the exhaust valve plate 20 remains attached to the end face 11. At this time, the exhaust valve plate 20 tilts towards the mounting hole 16. Impurities may then move along the tilted valve plate under the influence of cooling oil and become stuck at the fixed end 21 of the exhaust valve plate 20 (i.e., near the mounting hole 16), causing the exhaust valve plate 20 to fail to close properly. In this embodiment, a third oil trough 143 is provided near the mounting hole 16, so that impurities flow into the third oil trough 143 before or after moving to the fixed end 21 of the exhaust valve plate 20, and are discharged into the oil sump 13 through the third oil trough 143.

[0037] Furthermore, there are multiple third oil tanks 143, which are arranged in an intersecting manner. Specifically, in this embodiment, there are five third oil tanks 143, all extending in a straight line and intersecting to form a "well"-shaped structure, which discharges impurities into the oil pool 13 through the multiple third oil tanks 143. In other embodiments, the number of third oil tanks 143 may be one or other numbers, or they may extend in a curved shape.

[0038] Optionally, the bottom wall of the oil tank 14 is flush with the bottom wall of the oil pool 13, which facilitates processing and ensures unobstructed oil passage.

[0039] This application also provides a compressor, which includes the stationary scroll plate 100 of any of the foregoing embodiments. An oil groove 14 structure is added to the end face 11 of the exhaust port 12 and / or the fixed end 21 of the exhaust valve plate 20 of the stationary scroll plate body 10. This ensures the flatness of the end face 11 during the machining process of the stationary scroll plate 100, and also prevents impurities and foreign objects from adhering and jamming on the end face 11, thus preventing obstruction of the exhaust valve plate 20's reset. This ensures long-term stable operation of the compressor and, to a certain extent, guarantees the reliability of the compressor's operation.

[0040] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A stationary scroll plate for a compressor, characterized by, Including the static disk body, The stationary disc body includes an end face, at least one exhaust port is provided on the end face, and an oil pool is provided on the stationary disc body that is recessed relative to the end face. The oil pool surrounds the at least one exhaust port. An oil groove is also provided on the end face, the oil groove is connected to the oil pool, and at least a portion of the oil groove surrounds the exhaust port.

2. The stationary scroll for a compressor according to claim 1, characterized by The at least one exhaust port includes a main exhaust port and a secondary exhaust port, and the oil trough includes a first oil trough and a second oil trough, the first oil trough surrounding the main exhaust port and the second oil trough surrounding the secondary exhaust port.

3. The stationary scroll plate for a compressor according to claim 2, characterized in that, The width of the first oil tank is greater than or equal to the width of the second oil tank.

4. The stationary scroll plate for a compressor according to claim 2, characterized in that, The oil tank also includes a first connecting groove, the two ends of which are respectively connected to the second oil tank and the oil pool.

5. The stationary scroll plate for a compressor according to claim 4, characterized in that, The number of the first connecting slots is multiple, and the multiple first connecting slots are arranged circumferentially outside the secondary exhaust port.

6. The stationary scroll plate for a compressor according to claim 2, characterized in that, The oil tank also includes a second connecting groove, the two ends of which are respectively connected to the first oil tank and the second oil tank.

7. The stationary scroll plate for a compressor according to claim 1, characterized in that, The end face is also provided with a mounting hole. The static vortex disk also includes an exhaust valve plate. The exhaust valve plate is disposed on one side of the end face and covers the at least one exhaust port. The end of the exhaust valve plate away from the exhaust port is fixedly connected to the mounting hole. The oil tank also includes a third oil tank surrounding the mounting hole.

8. The stationary scroll plate for a compressor according to claim 7, characterized in that, There are multiple third oil tanks, and these multiple third oil tanks are arranged in a cross pattern.

9. The stationary scroll plate for a compressor according to claim 1, characterized in that, The bottom wall of the oil tank is flush with the bottom wall of the oil pool.

10. A compressor characterized by, include: The static scroll plate for a compressor as described in any one of claims 1-9.

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