Fixed scroll component for scroll compressor and scroll compressor

Abstract

The present invention relates to a fixed scroll component and a scroll compressor for a scroll compressor, comprising: a fixed scroll end plate; a fixed scroll roll, the fixed scroll roll extending from a first side of the fixed scroll end plate and comprising an involute portion and a roll head located radially inside the involute portion, wherein the involute portion is used to engage with a movable scroll roll of a movable scroll component of the scroll compressor to define a series of fluid chambers; and an exhaust passage, the exhaust passage axially penetrates the fixed scroll end plate and is formed on one side of the roll head, wherein a reinforcing member is arranged in the exhaust passage, and the reinforcing member is sunken a first distance relative to the first side. By improving the structure of the fixed scroll component, the strength of the roll head portion of the fixed scroll roll is significantly improved, the stress concentration at the roll head is greatly reduced, and at the same time, good exhaust flow efficiency at the exhaust passage is maintained, and the structure is simple, easy to process and manufacture, and has high cost-effectiveness and practical value.

Description

Technical Field

[0001] The present invention relates to the field of compressors, in particular to a fixed scroll component for a scroll compressor and a scroll compressor. Background Art

[0002] The contents in this section merely provide background information related to the present disclosure and may not constitute prior art.

[0003] Compressors (such as scroll compressors, etc.) can be used in, for example, refrigeration systems, air conditioning systems, and heat pump systems. During the operation of the scroll compressor, the compression mechanism sucks in a low-pressure fluid through an air inlet and compresses the low-pressure fluid, and the compressed high-pressure fluid is discharged through an exhaust passage of the compression mechanism for subsequent work. The compression mechanism includes a movable scroll component and a fixed scroll component, which cooperate with each other to define a series of fluid cavities, wherein the exhaust passage of the compression mechanism is usually arranged at the center of the fixed scroll end plate and adjacent to the scroll head of the fixed scroll scroll, so that the scroll head is subjected to a larger internal and external pressure difference and a greater risk of fracture.

[0004] Therefore, it is necessary to further improve the structure of the fixed scroll component to improve the strength of the scroll head portion of the fixed scroll wrap. Summary of the invention

[0005]

[0013] This section provides a general summary of the invention, and is not a comprehensive disclosure of its full scope or all of its features.

[0006] The purpose of the present invention is to solve one or more of the above-mentioned technical problems.

[0007] According to one aspect of the present invention, there is provided a fixed scroll component for a scroll compressor, comprising:

[0008] Fixed scroll end plate;

[0009] a fixed scroll wrap extending from a first side of the fixed scroll end plate and comprising an involute portion and a wrap head radially inward of the involute portion, wherein the involute portion is used to mesh with a movable scroll wrap of an movable scroll component of the scroll compressor to define a series of fluid cavities; and

[0010] an exhaust passage, the exhaust passage axially penetrating the fixed scroll end plate and formed on one side of the scroll head,

[0011] It is characterized in that a reinforcing member is arranged in the exhaust passage, and the reinforcing member is sunken by a first distance relative to the first side surface.

[0012] By providing a reinforcing component, the strength of the scroll head portion of the fixed scroll can be improved, and by sinking the reinforcing component by a first distance relative to the first side of the fixed scroll end plate, the reinforcing component can be prevented from contacting and rubbing against the movable scroll. At the same time, due to the presence of a spacing - a first distance - between the reinforcing component and the movable scroll, fluid connectivity is maintained between the various parts of the exhaust passage, thereby improving gas circulation in the exhaust passage.

[0013] According to a preferred embodiment of the present invention, the reinforcing member includes a first reinforcing rib, which extends toward the scroll head, so as to configure the exhaust channel into two independent first exhaust channels and second exhaust channels. The first reinforcing rib extends toward the scroll head to facilitate reinforcing the scroll head.

[0014] According to a preferred embodiment of the present invention, the first reinforcement rib extends toward an end portion of the scroll head.

[0015] According to a preferred embodiment of the present invention, the reinforcing member further comprises a second reinforcing rib, and the ends of the first reinforcing rib and the second reinforcing rib adjacent to the vortex head intersect and are arranged in a V shape, so as to better reinforce the vortex head.

[0016] According to a preferred embodiment of the present invention, the reinforcing member further comprises a third reinforcing rib, and the first reinforcing rib and the third reinforcing rib are arranged crosswise with each other, so as to reinforce the scroll head and the exhaust passage from different positions.

[0017] According to a preferred embodiment of the present invention, the exhaust passage comprises a plurality of air holes, and the reinforcing member comprises a solid reinforcing portion between adjacent air holes, so as to facilitate reinforcing the exhaust passage along the entire inner peripheral wall thereof.

[0018] According to a preferred embodiment of the present invention, the plurality of pores are a plurality of circular pores, and the diameters of the plurality of circular pores are the same.

[0019] According to a preferred embodiment of the present invention, the first distance is less than or equal to 25% of the height of the exhaust passage.

[0020] According to a preferred embodiment of the present invention, the exhaust passage is close to an edge of the scroll head adjacent to the fixed scroll end plate.

[0021] According to another aspect of the present invention, there is provided a scroll compressor, characterized by comprising the fixed scroll component as described above.

[0022] In summary, the fixed scroll component and scroll compressor for a scroll compressor according to the present invention have the following beneficial technical effects: by improving the structure of the fixed scroll component, the strength of the scroll head part of the fixed scroll is significantly improved, the stress concentration at the scroll head is greatly reduced, and at the same time, good exhaust flow efficiency at the exhaust channel is maintained, and the fixed scroll component and scroll compressor of the present invention have a simple structure, are easy to process and manufacture, and have high cost-effectiveness and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The foregoing and other features and characteristics of the present invention will become more apparent from the following detailed description with reference to the accompanying drawings, which are provided as examples only and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals are used to indicate the same components, and in the drawings:

[0024] Figure 1 A longitudinal sectional view showing a scroll compressor according to a first embodiment of the present invention;

[0025] Figure 2 Shows Figure 1 A partial longitudinal cross-sectional schematic diagram of a fixed scroll component;

[0026] Figure 3 Shows Figure 1 A partial three-dimensional schematic diagram of the fixed scroll component in FIG. 1 as viewed from the second side surface of the fixed scroll end plate;

[0027] Figure 4 Shows Figure 1 A partial three-dimensional schematic diagram of the fixed scroll component in FIG. 1 as viewed from a first side surface of the fixed scroll end plate;

[0028] Figure 5 Shows Figure 4 A partial enlarged view of the fixed scroll component in FIG.

[0029] Figure 6 Shows Figure 4 A front view of a fixed scroll component in FIG.

[0030] Figure 7 A partial perspective schematic diagram of a fixed scroll component according to a second embodiment of the present invention viewed from a first side surface of a fixed scroll end plate is shown;

[0031] Figure 8 Shows Figure 7 A front view of a fixed scroll component in FIG.

[0032] Fig. 9 A partial front view of a fixed scroll component according to a third embodiment of the present invention as viewed from a first side surface of a fixed scroll end plate is shown;

[0033] Fig.10A partial front view of a fixed scroll component according to a fourth embodiment of the present invention as viewed from a first side surface of a fixed scroll end plate is shown;

[0034] Fig.11 A partial front view of a fixed scroll component according to a fifth embodiment of the present invention as viewed from a first side surface of a fixed scroll end plate is shown;

[0035] Fig.12 A graph showing comparative test results of a scroll compressor including a fixed scroll component according to the first to fifth embodiments of the present invention and a scroll compressor of the prior art is shown, wherein the stress of the fixed scroll component during operation is detected and maximum stress data is shown; and

[0036] Fig.13 A safety margin curve diagram of a scroll compressor according to a first embodiment of the present invention and a scroll compressor in the prior art is shown. DETAILED DESCRIPTION

[0037] Please refer to the attached Figure 1-11 The specific embodiments shown are used to describe the present invention in detail. The following detailed description is for illustrative purposes only and is not intended to limit the present invention and its application or use.

[0038] In the following embodiments, for the convenience of description, a low-pressure side vertical scroll compressor is taken as an example, that is, the compression mechanism is located in the low-pressure region. It can be understood that the scroll compressor according to the present invention can also be a high-pressure side scroll compressor (that is, the compression mechanism is located in the high-pressure region), a horizontal scroll compressor, or any other suitable type of scroll compressor.

[0039] First, refer to the attached Figure 1 The overall configuration of a scroll compressor according to a first embodiment of the present invention will be described.

[0040] like Figure 1As shown, the scroll compressor 100 may include a housing 10, an electric motor (including a stator 14 and a rotor 15), a drive shaft 16, a main bearing seat 18, a movable scroll component 24, and a fixed scroll component 22. The movable scroll component 24 and the fixed scroll component 22 constitute a compression mechanism CM suitable for compressing a working fluid (e.g., a refrigerant), wherein the fixed scroll component 22 includes a fixed scroll end plate 222, a fixed scroll volute 224 extending from a first side surface P1 of the fixed scroll end plate 222, and an exhaust passage 220 located at a substantially center of the fixed scroll end plate 222; the movable scroll component 24 includes a movable scroll end plate 242, a movable scroll volute 244, and a hub 240. An open suction chamber connected to the air inlet fluid of the compression mechanism CM and a series of closed compression chambers for compressing the working fluid are formed by the engagement of the fixed scroll 224 and the movable scroll 244 within the compression mechanism CM. The compressed high-temperature and high-pressure fluid is discharged to the outside of the compression mechanism CM via the exhaust passage 220.

[0041] The electric motor includes a stator 14 and a rotor 15. The rotor 15 is used to drive the drive shaft 16 so that the drive shaft 16 rotates relative to the housing 10 around its rotation axis. The drive shaft 16 is operably connected to the hub 240 of the movable scroll component 24. The movable scroll component 24 is driven via the drive shaft 16, so that it can be translated relative to the fixed scroll component 22 by means of a cross ring, that is, it can revolve (that is, the axis of the movable scroll component 24 revolves relative to the axis of the fixed scroll component 22, but the movable scroll component 24 and the fixed scroll component 22 do not rotate around their respective axes). As a result, the compression mechanism CM inhales low-pressure fluid through the air inlet, compresses the fluid through a series of closed compression chambers, and discharges high-pressure fluid through the exhaust passage 220.

[0042] See also Figure 4The fixed scroll 224 includes an involute portion 2241 and a scroll head 2240 located radially inside the involute portion 2241, wherein the involute portion 2241 and the movable scroll 244 mesh with each other to define an air suction chamber (low pressure) located radially outside, an exhaust chamber (high pressure) near the radial center, and a series of closed compression chambers whose volumes gradually decrease from the radial outside to the radial center, and the exhaust passage 220 at the approximate center of the fixed scroll end plate 222 is connected to the exhaust chamber. Generally, the exhaust passage 220 is arranged to axially penetrate the fixed scroll end plate 222 and be arranged on one side of the scroll head 2240, and more preferably, in the present invention, the exhaust passage 220 extends along at least a portion of the radial inner edge of the scroll head 2204 connected to the fixed scroll end plate 222, thereby reducing the strength of the scroll head 2240 and the area near the exhaust passage 220, and the stress is concentrated in this part due to the large internal and external pressure difference, and there is a high risk of fracture failure. To this end, the present invention improves the structure of the fixed scroll component 22. Figure 2-6 right Figure 1 The specific structure of the fixed scroll component 22 of the first embodiment is described in detail.

[0043] Figure 2 Shows Figure 1 A partial longitudinal cross-sectional schematic diagram of the fixed scroll component 22; Figure 3 Shows Figure 1 A partial perspective schematic diagram of the fixed scroll component 22 as viewed from the second side surface P2 of the fixed scroll end plate 222; Figure 4 Shows Figure 1 A partial perspective schematic diagram of the fixed scroll component 22 as viewed from a first side surface P1 of the fixed scroll end plate 222; Figure 5 Shows Figure 4 A partial enlarged view of the fixed scroll component 22; Figure 6 Shows Figure 4 Specifically, refer to Figure 4It can be seen that the fixed scroll 224 extends from the first side surface P1 of the fixed scroll end plate 222 in a spiral shape, and the fixed scroll 224 includes an involute portion 2241 and a scroll head 2240, and the scroll head 2240 includes an end portion 2245 having a convex end surface 2242 and a transition portion 2243 having a concave inner side surface 2244 and located between the end portion 2245 and the involute portion 2241. The exhaust channel 220 extends through the fixed scroll end plate 222. The exhaust channel 220 extends close to the edge of a portion of the convex end surface 2242 and the concave inner side surface 2244, thereby ensuring or increasing the exhaust volume. It should be understood that in the present invention, "close to" means that the exhaust channel 220 is set as close to the fixed scroll 224 as possible, but a slight deviation caused by process requirements, tolerances, etc. is allowed.

[0044] like Figure 2 and Figure 3 As shown, the fixed vortex end plate 222 includes a second side surface P2 opposite to the first side surface P1. In this embodiment, preferably, the fixed vortex end plate 222 includes a recess 223 that sinks from the second side surface P2 toward the first side surface P1, and the exhaust passage 220 is arranged to penetrate from the first side surface P1 to the bottom surface 2230 of the recess 223 and open at the bottom surface 2230. The recess 223 is usually arranged for the purpose of guiding the exhaust gas flow. Due to the design of the recess 223, the strength of the area near the exhaust passage 220 may also be reduced. For this reason, in the present invention, a reinforcing member is arranged in the exhaust passage 220 to improve the strength, and the reinforcing member preferably extends in the exhaust passage 220 toward the volute head 2240, more preferably adjacent to the volute head 2240, so as to better strengthen the strength at the volute head 2240. In particular, the arrangement of the reinforcing member is particularly advantageous for the case where the exhaust passage is large, the exhaust passage is close to the fixed vortex volute, the fixed vortex end plate is thin, and the like.

[0045] like Figures 3 to 6 As shown, preferably, in this first embodiment, the reinforcing member includes a first reinforcing rib K, which linearly extends through the exhaust channel 220 and is connected to the inner peripheral wall 221 of the exhaust channel 220 at both ends, wherein one end of the first reinforcing rib K is preferably adjacent to the scroll head 2240, so as to provide a reinforcing effect for the scroll head 2240. Specifically, as shown in FIG. Figure 4 As shown, the first reinforcing rib K extends from the transition portion 2243 and is adjacent to the head portion 2245, that is, extends from a portion of each of the convex end surface 2242 and the concave inner side surface 2244, and the first reinforcing rib K forms an angle α of 70° to 90° with the concave inner side surface 2244 of the transition portion 2243, the angle α specifically refers to the angle formed on a plane parallel to the fixed scroll end plate 222, in particular, at Figure 6An extended line is used to schematically mark the section of the side of the concave inner side surface 2244 adjacent to the first reinforcing rib K, so as to more clearly mark the angle α. It should be understood that, since different areas of the scroll head 2240 have different curvatures or bending directions, the angles of each reinforcing rib relative to the side of the scroll head 2240, such as the concave inner side surface 2244 or the convex end surface 2242, as mentioned in the present invention (such as the angles α and β in this article) can indicate a rough angle range, and are not limited to indicating only the precise angle at a specific position relative to the scroll head 2240. In this embodiment, the first reinforcing rib K is preferably configured to have a substantially constant width, that is, the first reinforcing rib K has a cross-section of substantially the same shape and size along the extension direction, and the width (that is, the minimum width) is not less than 2 mm, more preferably not less than 3 mm, and the end of the first reinforcing rib K connected to the inner peripheral wall 221 has a rounded chamfer to increase the contact area and reduce local stress. It should be understood by those skilled in the art that the term “substantially constant” herein includes a tolerance within a certain range and means that most sections of the reinforcing member (including the first reinforcing rib K and the first reinforcing rib K′, the second reinforcing rib K″, and the third reinforcing rib K″′ described below) have a constant width, such as Figure 6 As best shown in FIG. 1 , only the rounded corners are provided at the ends. Such adjustments are allowed, and the specific size and shape of the reinforcement member can be adjusted depending on the actual application.

[0046] In particular, for applications where the end portion 2245 of the scroll head 2240 needs to be particularly reinforced, the first reinforcement rib K may also preferably extend directly from the end portion 2245 , thereby providing a better reinforcement effect on the end portion 2245 .

[0047] Further, preferably, the reinforcing member according to the present invention is configured to be sunken by a first distance L1 relative to the first side surface P1, so that the reinforcing member avoids contact and friction with the movable scroll wrap and improves gas flow in the exhaust passage. Figures 3 to 5 It can be seen that the first reinforcing rib K includes a first surface K1 and a second surface K2 opposite to each other. Figure 5 As shown, preferably, the first reinforcing rib K is configured so that the first surface K1 sinks a first distance L1 relative to the first side surface P1 of the fixed scroll end plate 222 toward the second side surface P2 (although Figure 5Only one end of the first reinforcing rib K is shown to be sunken by the first distance L1. It should be understood that the other end of the first reinforcing rib K is preferably also sunk by the first distance L1. This configuration enables the first reinforcing rib K to avoid contact and friction with the movable scroll 244 during the engagement of the fixed scroll 224 and the movable scroll 244, and maintain a certain distance (greater than or equal to the first distance L1) between the end of the movable scroll 244, so that the two independent first exhaust channels and the second exhaust channels of the exhaust channel 220 separated by the first reinforcing rib K are always fluidly connected, thereby improving the exhaust flow efficiency. Preferably, the first distance L1 can be set to be less than or equal to 25% of the height of the exhaust channel 220, that is, the distance between the first side surface P1 and the bottom surface 2230 of the recess 223. In this embodiment, the first distance L1 can be set to about 1 mm. And preferably, the second surface K2 is flush with the bottom surface 2230.

[0048] It should be understood that, in the present invention, the exhaust passage 220 runs through from the first side surface P1 to the second side surface P2 of the fixed scroll end plate 222. When the fixed scroll end plate 222 includes a recess 223, the bottom surface 2230 of the recess 223 can be regarded as a part of the second side surface P2 of the fixed scroll end plate 222. In this case, the exhaust passage 220 runs through from the first side surface P1 to the bottom surface 2230 of the recess 223 and opens at the bottom surface 2230. The height of the exhaust passage 220 is the distance between the first side surface P1 and the bottom surface 2230. However, in actual applications, the fixed scroll end plate 222 may not include the recess 223. Accordingly, when the recess 223 is not included, the exhaust channel 220 still runs from the first side surface P1 to the second side surface P2, and the height of the exhaust channel 220 is the distance between the first side surface P1 and the second side surface P2. Therefore, the first distance L1 may also be correspondingly less than or equal to 25% of the distance between the first side surface P1 and the second side surface P2, and the second surface K2 may be flush with the second side surface P2.

[0049] Figure 7 A partial perspective schematic diagram of the fixed scroll component 22 according to the second embodiment of the present invention as viewed from the first side surface P1 of the fixed scroll end plate 222 is shown; Figure 8 Shows Figure 7 A front view of the fixed scroll component 22 in FIG. Figure 7 and Figure 8As shown, in the second embodiment, the reinforcing member includes two first reinforcing ribs K' and second reinforcing ribs K". The first reinforcing ribs K' and second reinforcing ribs K" in the second embodiment have similar configurations to the first reinforcing rib K in the first embodiment, that is, similar sizes and shapes, and the first reinforcing ribs K' and second reinforcing ribs K" are also sunken a first distance L1 relative to the first side surface P1 of the fixed scroll end plate 222 in the direction toward the second side surface P2, just like the first reinforcing rib K. The difference is that, in the second embodiment, only the first reinforcing rib K' extends from the transition portion 2243 and is adjacent to the end portion 2245, and forms an angle α of 70° to 90° with the concave inner side surface 2244 of the transition portion 2243 - the angle α specifically refers to the angle formed on a plane parallel to the fixed scroll end plate 222, so as to provide reinforcement for the scroll head 2240, and the second reinforcing rib K" is arranged to intersect with the first reinforcing rib K', so that the second reinforcing rib K" is away from the end portion 2245. And, as Figure 8 As shown, preferably, the second reinforcing rib K" is arranged to be orthogonal to the first reinforcing rib K' - the orthogonality specifically refers to a 90° cross formed on a plane parallel to the fixed scroll end plate 222. This configuration can further strengthen the area around the exhaust passage 220 from different angles.

[0050] Fig. 9 FIG. 2 shows a partial front view of the fixed scroll component 22 according to the third embodiment of the present invention as viewed from the first side surface P1 of the fixed scroll end plate 222. Fig. 9As shown, in the third embodiment, the reinforcing member also includes a first reinforcing rib K' and a third reinforcing rib K'". The first reinforcing rib K' and the third reinforcing rib K'' in the third embodiment have a similar configuration to the first reinforcing rib K in the first embodiment, that is, a similar size and shape, and the first reinforcing rib K' and the third reinforcing rib K'' are also sunken a first distance L1 relative to the first side surface P1 of the fixed scroll end plate 222 toward the second side surface P2 like the first reinforcing rib K. The difference is that one end of the first reinforcing rib K' and the third reinforcing rib K'' are connected and both extend from the transition portion 2243 and are adjacent to the end portion 2245 - that is, the first reinforcing rib K' and the third reinforcing rib K'' are adjacent to the scroll head 2240 intersect with each other at one end and are arranged in a V shape, so as to provide better reinforcement for the scroll head 2240, wherein the first reinforcement rib K' extends to form an angle α of 30° to 40° with the concave inner side surface 2244 of the transition portion 2243 - the angle α specifically refers to the angle formed on a plane parallel to the fixed scroll end plate 222, and the third reinforcement rib K'"' is located between the first reinforcement rib K' and the concave inner side surface 2244, and the third reinforcement rib K'"' forms an angle β of 70° with the first reinforcement rib K' - the angle β specifically refers to the angle formed on a plane parallel to the fixed scroll end plate 222. Similarly, this configuration can further strengthen the area around the exhaust passage 220 from different angles.

[0051] It should be understood by those skilled in the art that the number, size, shape and arrangement of the reinforcing ribs can be adjusted according to actual needs, and by referring to the above embodiments, those skilled in the art can make various modifications.

[0052] Fig.10 FIG. 2 shows a partial front view of the fixed scroll component 22 according to the fourth embodiment of the present invention as viewed from the first side surface P1 of the fixed scroll end plate 222. Fig.10As shown, the exhaust channel 220 includes a plurality of air holes, which are preferably circular air holes H in the present invention, and the reinforcing member includes a solid reinforcement portion S between adjacent circular air holes H. The circular air holes are preferably, in the fourth embodiment, a plurality of circular air holes H have the same diameter, and their diameters are preferably between 3 mm and 4 mm. More preferably, the circular air holes H have a diameter of 3 mm, and the arrangement or distribution (for example, density, air hole flow area, etc.) of the circular air holes H is arranged in a manner that is conducive to improving the strength of the vortex head 2240. For example, the closer to the vortex head 2240 or the closer to the end portion 2245, the larger the area occupied by the solid reinforcement portion S, thereby ensuring high exhaust efficiency while ensuring the reinforcement effect on the vortex head 2240. Moreover, the solid reinforcement portion S, like the first reinforcement rib K in the first embodiment, sinks a first distance L1 relative to the first side surface P1 of the fixed scroll end plate 222 toward the second side surface P2, that is, the entire outer peripheral edge of the solid reinforcement portion S connected to the inner peripheral wall 221 of the exhaust passage 220 sinks a first distance L1 relative to the first side surface P1 toward the second side surface P2, thereby ensuring that the multiple circular air holes H always maintain fluid communication to improve the exhaust efficiency. This configuration is conducive to strengthening the entire inner peripheral wall 221 of the exhaust passage 220, and is easy to process and flexibly adjust the size and number of the circular air holes H.

[0053] Fig.11A partial front view of the fixed vortex component 22 according to the fifth embodiment of the present invention observed from the first side surface P1 of the fixed vortex end plate 222 is shown. The fifth embodiment is substantially the same as the fourth embodiment, that is, the exhaust passage 220 includes a plurality of circular air holes H1 and H2, the reinforcing member includes a solid reinforcement portion S between adjacent circular air holes H1 and H2, and the entire outer periphery of the circular air hole and the solid reinforcement portion S connected to the inner peripheral wall 221 of the exhaust passage 220 is sunken by a first distance L1 relative to the first side surface P1 toward the second side surface P2, thereby ensuring that the plurality of circular air holes H1 and H2 are always fluidically connected. The difference is that, in the fifth embodiment, the plurality of circular air holes H1 and H2 can each have a different diameter, so that the size and distribution of the plurality of circular air holes H1 and H2 can be adjusted more flexibly. Preferably, the plurality of circular air holes H1 and H2 generally include two types of circular air holes H1 and H2 of different diameters, that is, including circular air holes H1 with a diameter of 4 mm and circular air holes H2 with a diameter of 3 mm. In general, the arrangement or distribution (e.g., density, pore flow area, etc.) of the circular air holes H1 and H2 is arranged in a manner that is conducive to improving the strength of the scroll head 2240, for example, so that: the circular air holes H1 closer to the scroll head 224, more preferably, closer to the end portion 2245, have a larger diameter (4 mm diameter), and the circular air holes H2 farther away from the scroll head 224, more preferably, farther away from the end portion 2245, have a smaller diameter (3 mm diameter), thereby ensuring a high exhaust efficiency while ensuring a strengthening effect on the scroll head 2240. This configuration facilitates more flexible adjustment of the number, size, and distribution of the circular air holes H1 and H2 to meet different needs.

[0054] Fig.12 The graph shows the test results of comparing the scroll compressor 100 including the fixed scroll component 22 according to the first to fifth embodiments of the present invention with the scroll compressor of the prior art, wherein the test detects the stress of the fixed scroll component during operation and shows the maximum stress data. Fig.12 As shown, compared with the maximum stress of the fixed scroll component in the scroll compressor of the prior art (usually concentrated in the scroll head), the maximum stress of the fixed scroll component in the first to fifth embodiments of the present invention is significantly reduced. This shows that the present invention greatly reduces the stress concentration in the scroll head and surrounding areas of the fixed scroll component by providing the reinforcing member as described above, significantly enhances the strength of this area, and has significant technical advancement.

[0055] further, Fig.13 The safety margin curve diagram of the scroll compressor 100 according to the first embodiment of the present invention and the scroll compressor of the prior art is shown. The closer to the safety margin curve, the smaller the safety margin. Fig.13As shown, under the same working conditions, the scroll compressor 100 according to the first embodiment of the present invention has a larger safety margin than the scroll compressor of the prior art, thereby ensuring higher safety and reliability and being able to extend the service life of the fixed scroll component and the scroll compressor.

[0056] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the specific embodiments described and shown in detail herein, and that those skilled in the art may make various modifications and combinations of the exemplary embodiments and the individual features therein without departing from the scope defined by the claims.

Claims

1. A fixed scroll component (22) for a scroll compressor (100), include: A fixed scroll end plate (222), the fixed scroll end plate (222) comprising a first side surface (P1) and a second side surface (P2) opposite to the first side surface (P1); a fixed scroll wrap (224), the fixed scroll wrap extending from the first side surface (P1) of the fixed scroll end plate and comprising an involute portion (2241) and a scroll head (2240) located radially inside the involute portion, wherein the involute portion is used to mesh with a movable scroll wrap (244) of a movable scroll component (24) of the scroll compressor to define a series of fluid cavities; as well as an exhaust passage (220) axially penetrating the fixed scroll end plate and formed on one side of the scroll head, It is characterized in that a reinforcing member is provided in the exhaust passage, and the reinforcing member is sunken by a first distance (L1) in a direction toward the second side surface (P2) relative to the first side surface (P1) of the fixed scroll end plate (222).

2. The fixed scroll component for a scroll compressor according to claim 1, It is characterized in that The reinforcement member includes a first reinforcement rib (K, K') extending toward the scroll head, thereby configuring the exhaust passage into two independent first and second exhaust passages.

3. The fixed scroll component for a scroll compressor according to claim 2, It is characterized in that The first reinforcing rib extends toward an end portion (2245) of the scroll head.

4. The fixed scroll component for a scroll compressor according to claim 3, It is characterized in that The reinforcing member further includes a second reinforcing rib (K"), and ends of the first reinforcing rib and the second reinforcing rib (K") adjacent to the swirl head intersect and are arranged in a V shape.

5. The fixed scroll component for a scroll compressor according to claim 3, It is characterized in that The reinforcement member further includes a third reinforcement rib, and the first reinforcement rib and the third reinforcement rib (K'') are arranged to cross each other.

6. The fixed scroll component for a scroll compressor according to claim 1, It is characterized in that The exhaust passage includes a plurality of air holes (H, H1, H2), and the reinforcing member includes a solid reinforcing portion (S) between adjacent air holes.

7. The fixed scroll component for a scroll compressor according to claim 6, It is characterized in that The plurality of air holes are a plurality of circular air holes, and the diameters of the plurality of circular air holes are the same.

8. The fixed scroll component for a scroll compressor according to claim 1, It is characterized in that The first distance is less than or equal to 25% of the height of the exhaust passage.

9. The fixed scroll component for a scroll compressor according to any one of claims 1 to 8, It is characterized in that The exhaust passage is close to an edge of the scroll head adjacent to the fixed scroll end plate.

10. A scroll compressor (100), Features The invention comprises a fixed scroll component according to any one of claims 1 to 9.

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