Scroll member, compression mechanism, and scroll compressor

Abstract

The present application provides a scroll component, which comprises scroll blades and a blade end seal, the scroll blades comprising scroll end faces formed with sealing grooves, the sealing grooves comprising first groove portions and second groove portions with reduced depth, and the blade end seal comprising a main body portion and a feature formed at a position corresponding to the second groove portions, the feature and the second groove portions being configured such that, when the scroll component is assembled, in the case of correct assembly, the main body portion and the feature can be arranged in the first groove portions and the second groove portions, respectively, so that the blade end seal is in a predetermined working position, and in the case of incorrect assembly, the main body portion abnormally protrudes from the scroll end face so that the incorrect assembly can be identified. In addition, the present application also provides a compression mechanism. The present application also provides a scroll compressor. According to the scroll component, the compression mechanism and the scroll compressor of the present application, not only can the assembly error be effectively avoided, but also the production and installation are easy, and the cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to a scroll member, in particular, the present application relates to a scroll member with a fool-proof feature. In addition, the present application also relates to a compression mechanism comprising the scroll member and a scroll compressor comprising the compression mechanism. BACKGROUND

[0002] A scroll compressor comprises a compression mechanism composed of a fixed scroll and an orbiting scroll. The fixed scroll and the orbiting scroll each comprise an end plate and orbiting blades which are spread along opposite profile directions (clockwise and counterclockwise), and the two are meshed to define a plurality of compression chambers between the fixed scroll and the orbiting scroll. The tip end of the orbiting blade needs to be equipped with a tip seal to seal each compression chamber. Specifically, the tip end of the orbiting blade is provided with a sealing groove extending substantially along the profile, and the tip seal is inserted into the sealing groove of one scroll. The tip seal generally has an inverted trapezoidal cross section, with the short side face located in the sealing groove of the scroll, and the long side face forming a sealing surface with the end plate of the other scroll.

[0003] In addition, the tip seal is formed by injection molding, for example, and due to the presence of a ejector pin on the mold for facilitating demolding, the short side face of the tip seal will have a concave ejector pin mark.

[0004] During assembly of the tip seal, it is possible that the tip seal of the fixed scroll is installed into the sealing groove of the orbiting blade of the orbiting scroll, or vice versa. In this case of incorrect assembly, the long side face of the tip seal is located in the sealing groove, and the short side face contacts the end plate of the scroll and forms a sealing surface. Due to the inverted trapezoidal shape of the tip seal, the area of the short side face is smaller than that of the long side face, and the ejector pin mark on the short side face further reduces the area of the sealing surface, which easily causes wear, internal leakage and performance degradation of the tip seal.

[0005] Therefore, there is a need for a fool-proof design for the assembly of the tip seal of the orbiting scroll and the fixed scroll, so as to effectively avoid the problem of mixing the tip seals of the orbiting scroll and the fixed scroll during assembly. SUMMARY

[0006] In this section, a general summary of the application is provided, rather than a comprehensive disclosure of the full scope of the application or all features of the application.

[0007] One of the objectives of the present application is to provide a scroll member, a compression mechanism comprising the scroll member and a scroll compressor comprising the compression mechanism, wherein the tip seal of the scroll member and the sealing groove of the orbiting blade in which the tip seal is inserted have a fool-proof feature, so as to effectively avoid incorrect assembly of the tip seal.

[0008] Another object of the present application is to provide a scroll component, a compression mechanism comprising the scroll component, and a scroll compressor comprising the compression mechanism, the scroll component having a fool-proof feature on a blade tip seal of the scroll component and a seal groove of a scroll wrap blade in which the blade tip seal is interposed, and the fool-proof feature being easy to manufacture, free in position design, and low in cost.

[0009] According to an aspect of the present application, there is provided a scroll component, the scroll component comprising an end plate, a scroll wrap blade extending from one side of the end plate, and a blade tip seal, the scroll wrap blade comprising a scroll wrap end face at which a seal groove is formed, the blade tip seal being interposed in the seal groove, wherein the seal groove comprises a first groove portion having a first depth and extending substantially along a profile line of the scroll wrap blade, and a second groove portion having a second depth, the first depth being greater than the second depth, the blade tip seal comprising a feature portion and a main body portion extending substantially along the profile line, the feature portion being formed at a position corresponding to the second groove portion, the feature portion and the second groove portion being configured such that, upon assembly of the scroll component, in a case where the blade tip seal is properly fitted to the scroll wrap blade, the main body portion is capable of being disposed in the first groove portion and the feature portion is capable of being disposed in the second groove portion, so that the blade tip seal is in a predetermined working position, and in a case where the blade tip seal is improperly fitted to the scroll wrap blade, the main body portion is abnormally protruded from the scroll wrap end face so that the improper fitting can be identified.

[0010] Optionally, the main body portion comprises a first end face facing a bottom of the seal groove, a second end face opposite to the first end face and serving as a sealing surface, and a side face extending between the first end face and the second end face, and the feature portion is configured to protrude from the side face.

[0011] Optionally, the feature portion extends from the second end face towards the first end face by a predetermined distance, the predetermined distance being less than a distance between the first end face and the second end face.

[0012] Optionally, the feature portion is formed integrally with or separately from the main body portion.

[0013] Optionally, the main body portion extends from inside to outside along the profile line so that the side face comprises a left side face, a right side face, an inner end face, and an outer end face with respect to an extending direction of the main body portion, and the feature portion is one or more, the feature portion protruding from the left side face, the right side face, the inner end face, and / or the outer end face.

[0014] Optionally, the feature portion is configured to protrude from the left side face or the right side face at the outer end portion of the main body portion, the feature portion and the corresponding second groove portion being semicircular in shape as viewed in an axial direction of the scroll component.

[0015] Optionally, the main body portion includes a first end surface facing a bottom of the seal groove, a second end surface opposite to the first end surface and serving as a sealing surface, and a side surface extending between the first end surface and the second end surface, a recess recessed from the first end surface toward the second end surface is provided in the main body portion, thereby forming a thickness-reduced portion at a position of the main body portion corresponding to the recess, and the thickness-reduced portion constitutes the feature.

[0016] Optionally, the main body portion extends from inside to outside along the profile, thereby the main body portion includes a left side portion, a right side portion, an inner end portion and an outer end portion with respect to an extending direction of the main body portion, and the recess and the corresponding feature are configured as one or more sets, the recess and the corresponding feature are configured as: a recess open toward the left side and a corresponding thickness-reduced portion provided at the left side portion, a recess open toward the right side and a corresponding thickness-reduced portion provided at the right side portion, a recess open toward the inner end side and a corresponding thickness-reduced portion provided at the inner end portion, a recess open toward the outer end side and a corresponding thickness-reduced portion provided at the outer end portion, a slot and a corresponding thickness-reduced portion transversely penetrating through the main body portion, and / or a blind hole and a corresponding thickness-reduced portion surrounded by the main body portion.

[0017] Optionally, a protrusion protruding from a bottom of the first groove portion is provided in the first groove portion at a position corresponding to the recess, thereby forming a second groove portion in the first groove portion.

[0018] According to another aspect of the present application, there is provided a scroll member, the scroll member including an end plate, a scroll wrap blade extending from a side of the end plate, and a blade tip seal, the scroll wrap blade including a scroll wrap end surface at which a seal groove is formed, the blade tip seal being interposed in the seal groove, wherein the seal groove includes a first groove portion having a first depth and extending substantially along a profile of the scroll wrap blade, and a second groove portion having a second depth, the first depth being smaller than the second depth, the blade tip seal including a feature and a main body portion, the feature being formed at a position corresponding to the second groove portion, wherein the main body portion extends substantially from inside to outside along the profile, thereby the main body portion includes an inner end portion and an outer end portion with respect to an extending direction of the main body portion, the feature being formed at a position other than the inner end portion and the outer end portion of the main body portion, the feature and the second groove portion being configured such that, upon assembly of the scroll member, in a case where the blade tip seal is properly fitted with the scroll wrap blade, the main body portion is capable of being disposed in the first groove portion and the feature is capable of being disposed in the second groove portion, so that the blade tip seal is in a predetermined working position, and in a case where the blade tip seal is improperly fitted with the scroll wrap blade, the feature protrudes from the scroll wrap end surface so that the improper fitting can be identified.

[0019] Optionally, the feature is one or more, and / or the feature is integrally or separately formed with the main body portion.

[0020] Optionally, the main body is configured to have a substantially trapezoidal shape in cross section, and a width of the second end surface of the main body, which serves as a sealing surface, is greater than a width of the first end surface of the main body, which faces the bottom of the sealing groove.

[0021] According to still another aspect of the present application, there is provided a compression mechanism including a fixed scroll member and an orbiting scroll member, wherein the fixed scroll member and / or the orbiting scroll member is configured as the scroll member as described above.

[0022] According to still another aspect of the present application, there is provided a scroll compressor, wherein the scroll compressor includes the compression mechanism as described above.

[0023] In general, the scroll member according to the present application, the compression mechanism including the scroll member, and the scroll compressor including the compression mechanism bring at least one of the following beneficial effects: due to the fool-proof feature on the sealing groove of the orbiting blade interposed by the blade end seal of the scroll member, it is easy to find the problem of mixed assembly of the blade end seals of the orbiting scroll and the fixed scroll during assembly and to correct it in time; since the fool-proof feature is implemented as a groove feature or a protrusion feature, it is easy to manufacture, thereby reducing the production cost; since the fool-proof feature can be provided in any section of the blade end seal and the sealing groove in the profile direction, the design is flexible and free, and the application range is wide. BRIEF DESCRIPTION OF DRAWINGS

[0024] The features and advantages of one or more embodiments of the present application will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings. The drawings provided herein are for illustration purposes only and are not intended to limit the scope of the application in any way. The drawings are not drawn to scale and some features can be exaggerated to show details of particular components. In the drawings:

[0025] Figure 1 is a partial longitudinal sectional view of a compression mechanism according to a first embodiment of the present application;

[0026] Figure 2a and Figure 2b are respectively Figure 1 are respectively an enlarged view of detail A and detail B in

[0027] Figure 3 is a cross-sectional view of a main body of a blade end seal according to the first embodiment of the present application;

[0028] Figure 4a and Figure 4b are respectively a partial detail enlarged view of a blade end seal of a compression mechanism according to a comparative example in a case of erroneous assembly, in which the blade end seal of the fixed scroll is installed in the sealing groove of the orbiting scroll, and the blade end seal of the orbiting scroll is installed in the sealing groove of the fixed scroll;

[0029] Figure 5a is a perspective view of a leaf tip seal according to the first embodiment of the present application;

[0030] Figure 5b is an enlarged view of detail C in Figure 5a

[0031] Figure 6a is a perspective view of a moving scroll according to the first embodiment of the present application;

[0032] Figure 6b is an enlarged view of detail D in Figure 6a

[0033] Figure 7a and Figure 7b are perspective views of a leaf tip seal according to the first embodiment of the present application in the case of correct assembly and incorrect assembly, respectively;

[0034] Figure 8 is a partial perspective view of a leaf tip seal according to the second embodiment of the present application;

[0035] Figure 9 is a partial perspective view of a seal groove according to the second embodiment of the present application;

[0036] Figure 10a and Figure 10b are perspective views of a leaf tip seal according to the second embodiment of the present application in the case of correct assembly and incorrect assembly, respectively;

[0037] Figure 11 is a partial perspective view of a leaf tip seal according to the third embodiment of the present application;

[0038] Figure 12 is a partial perspective view of a seal groove according to the third embodiment of the present application; and

[0039] Figure 13a and Figure 13b are perspective views of a leaf tip seal according to the third embodiment of the present application in the case of correct assembly and incorrect assembly, respectively. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, which are by way of illustration only and thus are not intended to limit the present application and its applications.

[0041] The scroll compressor according to the first embodiment of the present application mainly includes a housing, a compression mechanism 100, and a drive shaft, a motor, etc. for driving the compression mechanism 100. Referring to Figure 1 ​​The compression mechanism 100 includes a fixed scroll member 10 (hereinafter also referred to as fixed scroll 10) and an orbiting scroll member 20 (hereinafter also referred to as orbiting scroll 20). The fixed scroll 10 includes a fixed scroll end plate 12 and spiral wrap blades 14 extending downward from one side of the fixed scroll end plate 12. The orbiting scroll 20 includes an orbiting scroll end plate 22 and spiral wrap blades 24 extending upward from one side of the orbiting scroll end plate 22. The wrap blades 14 of the fixed scroll 10 and the wrap blades 24 of the orbiting scroll 20 are engaged with each other, thereby forming a series of moving compression chambers C having volumes gradually decreasing from radially outer sides to radially inner sides therebetween, thereby achieving compression of the working fluid.

[0042] In order to achieve compression of the working fluid, effective sealing is required between the fixed scroll 10 and the orbiting scroll 20.

[0043] During normal operation of the scroll compressor, on the one hand, radial sealing is required between the side surfaces of the wrap blades 14 of the fixed scroll 10 and the side surfaces of the wrap blades 24 of the orbiting scroll 20. Such radial sealing between the two is usually achieved by means of centrifugal force of the orbiting scroll 20 during operation and driving force provided by the drive shaft. On the other hand, axial sealing is required between the tips of the wrap blades 14 of the fixed scroll 10 and the end plate 22 of the orbiting scroll 20 and between the tips of the wrap blades 24 of the orbiting scroll 20 and the end plate 12 of the fixed scroll 10. To this end, as shown in Figs. 1 and 2, the tips of the wrap blades 24 of the orbiting scroll 20 are formed with a sealing groove 1244 recessed from the wrap end face 242 of the orbiting scroll toward the orbiting scroll end plate 22, and a blade tip seal 130a is inserted in the sealing groove 1244. One end face of the blade tip seal 130a is arranged in the sealing groove 1244, and the opposite other end face is capable of contacting a surface 122 of the fixed scroll end plate 12 facing the compression chambers C to form a seal. Similarly, the tips of the wrap blades 14 of the fixed scroll 10 are formed with a sealing groove 1144 recessed from the wrap end face 142 of the fixed scroll toward the fixed scroll end plate 12, and a blade tip seal 130b is inserted in the sealing groove 1144. One end face of the blade tip seal 130b is arranged in the sealing groove 1144, and the opposite other end face is capable of contacting a surface 222 of the orbiting scroll end plate 22 facing the compression chambers C to form a seal. Figure 2a and Figure 2b As shown, the tips of the wrap blades 24 of the orbiting scroll 20 are formed with a sealing groove 1244 recessed from the wrap end face 242 of the orbiting scroll toward the orbiting scroll end plate 22, and a blade tip seal 130a is inserted in the sealing groove 1244. One end face of the blade tip seal 130a is arranged in the sealing groove 1244, and the opposite other end face is capable of contacting a surface 122 of the fixed scroll end plate 12 facing the compression chambers C to form a seal. Similarly, the tips of the wrap blades 14 of the fixed scroll 10 are formed with a sealing groove 1144 recessed from the wrap end face 142 of the fixed scroll toward the fixed scroll end plate 12, and a blade tip seal 130b is inserted in the sealing groove 1144. One end face of the blade tip seal 130b is arranged in the sealing groove 1144, and the opposite other end face is capable of contacting a surface 222 of the orbiting scroll end plate 22 facing the compression chambers C to form a seal.

[0044] Those skilled in the art will understand that the blade tip seals of the moving scroll and the fixed scroll have essentially the same structure. The main difference lies in the profile of the moving scroll blades, which is, for example, an involute extending counterclockwise, while the profile of the fixed scroll blades is, for example, an involute extending clockwise. Therefore, the blade tip seals of the moving scroll and the fixed scroll extend along roughly opposite profile directions. Consequently, during the assembly of the blade tip seals into the sealing groove, misassembly can easily occur, i.e., the moving scroll blade tip seal is assembled into the sealing groove of the fixed scroll, and vice versa.

[0045] To prevent mis-assembly of blade tip seals, the blade tip seals and sealing grooves according to the present invention also have foolproof features. The foolproof features according to the present invention will be specifically described below using a moving scroll component as an example. Those skilled in the art will understand that the foolproof features on the moving scroll component are also applicable to the stationary scroll component.

[0046] Figure 5a and Figure 5b A blade tip seal 130a for a vortex according to a first embodiment of the present invention is shown. The blade tip seal 130a includes a main body 131 extending generally along the profile of the vortex blade and a feature portion 133 protruding from the main body 131. The feature portion 133 may be integrally formed with the main body 131 or formed separately and then connected for installation. The main body 131 has a first end face 34 facing the bottom of the sealing groove to be inserted into it, a second end face 32 opposite to the first end face 34 serving as a sealing surface, and a side surface 36 extending between the first end face 34 and the second end face 32. The main body 131 extends from the inside to the outside along the profile such that the side surface 36 includes a left side face, a right side face, an inner end face, and an outer end face relative to the extending direction of the main body 131. The feature portion 133 protrudes from the side surface 36 of the main body 131 and extends a predetermined distance from the second end face 32 toward the first end face 34, the predetermined distance being less than the distance between the first end face 34 and the second end face 32. In other words, the feature portion 133 extends from the second end face and the height of the feature portion 133 in the axial direction is less than the height of the main body portion 131 in the axial direction, so that the upper surface of the feature portion 133 and the first end face 34 of the main body portion 131 together form a sealing surface, which can facilitate processing and manufacturing and increase the sealing area.

[0047] Figure 3 A cross-sectional schematic diagram of the main body 131 of the blade tip seal 130a is shown. The main body 131 is constructed with a generally trapezoidal (transverse) cross-section. The blade tip seal 130a is manufactured, for example, by injection molding, and along such a... Figure 3The material is demolded in the direction indicated by the arrow in the diagram. The first end face 34 of the main body 131 is constructed to correspond to the short side of its inverted trapezoidal cross-section, and the second end face 32 of the main body 131 is constructed to correspond to the long side of its inverted trapezoidal cross-section. That is, the width of the second end face 32 is greater than the width of the first end face 34, thereby facilitating demolding and increasing the sealing area. To further facilitate demolding, ejector pins are usually provided on the mold, so that after the blade end seal 130a is demolded, a groove 38 caused by the ejector pin will be left on the first end face 34.

[0048] Figure 6a and Figure 6b A schematic diagram of a moving scroll 20 according to a first embodiment of the present invention is shown. A sealing groove 1244 for receiving a blade end seal 130a is formed on the scroll end face 242 of the scroll blade 24 of the moving scroll 20. The sealing groove 1244 includes a first groove portion 1241 having a first depth and a second groove portion 1243 having a second depth, wherein the first depth is greater than the second depth. The first groove portion 1241 extends generally along the profile of the scroll blade 24 (but not necessarily along the entire profile of the scroll blade 24). The positions of the first groove 1241 and the second groove 1243 correspond to the positions of the main body 131 and the feature portion 133 of the blade tip seal 130a, respectively. This ensures that when the blade tip seal is correctly assembled with the scroll blade (i.e., the moving scroll blade tip seal 130a is assembled into the sealing groove 1244 of the moving scroll blade 24, and the stationary scroll blade tip seal 130b is assembled into the sealing groove 1144 of the stationary scroll blade 14), the main body 131 of the blade tip seal 130a can be arranged in the first groove 1241, and the feature portion 133 of the blade tip seal 130a can be arranged in the second groove 1243, so that the blade tip seal 130a is in a predetermined working position, such as... Figure 7aAs shown. The predetermined working position of the blade end seal refers to the position where the blade end seal can work normally during the operation of the scroll compressor. For example, during the assembly of the blade end seal, when the blade end seal and the scroll blade are correctly assembled, the blade end seal 130a can be completely accommodated in the sealing groove 1244, that is, the second end face 32 of the main body 131 and the top surface of the feature portion 133 can be lower than or flush with the scroll end face 242 of the scroll blade 24. In this case, during the operation of the scroll compressor, the blade end seal 130a can float slightly axially within the sealing groove 1244, so that the second end face 32 of the main body 131 and the top surface of the feature portion 133 protrude beyond the scroll end face 242 and contact the surface 122 of the fixed scroll end plate 12 to form a seal. Alternatively, during the assembly of the blade tip seal, if the blade tip seal and the scroll blade are correctly assembled, the blade tip seal 130a can protrude beyond the sealing groove 1244, meaning the second end face 32 of the main body 131 and the top surface of the feature portion 133 can be slightly higher than the scroll end face 242 of the scroll blade 24. In this case, during the operation of the scroll compressor, the second end face 32 of the main body 131 and the top surface of the feature portion 133 of the blade tip seal 130a can directly contact the surface 122 of the fixed scroll end plate 12 to form a seal.

[0049] The following will refer to Figure 2a , Figure 2b and Figure 4a , Figure 4b The document explains the different scenarios of correct and incorrect assembly of the blade tip seal and the scroll blade. For example... Figure 2a and Figure 2b The diagram shows the correct assembly of the blade tip seals and the scroll blades. The second end faces 32 of the blade tip seals 130a and 130b form seals with the fixed scroll end plate 12 and the moving scroll end plate 22, respectively, while the first end faces 34 of the blade tip seals 130a and 130b are located within their respective sealing grooves 1244 and 1144. Because the area of ​​the second end face 32 is larger than that of the first end face 34, the sealing surface formed by the second end face 32 is larger, resulting in a better sealing effect. Furthermore, since the second end face 32 is further away from the mold in the draft direction, it does not have the indentations caused by ejector pins and is flatter, which not only improves the sealing effect of the blade tip seals but also reduces wear and internal leakage, extending their service life.

[0050] In the comparative examples, such as Figure 4a and Figure 4bAs shown, in the case of misassembly of the lobe end seal 30a, 30b to the scroll lobe 14, 24 (i.e. the lobe end seal 30b of the fixed scroll is assembled into the seal groove 244 of the scroll lobe 24 of the moving scroll, and the lobe end seal 30a of the moving scroll is assembled into the seal groove 144 of the scroll lobe 14 of the fixed scroll), the first end face 34 of the lobe end seal 30a, 30b forms a seal with the fixed scroll end plate 12 and the moving scroll end plate 22 respectively, while the second end face 32 of the lobe end seal 30a, 30b is located in the corresponding seal groove 244, 144 respectively. Since the area of the first end face 34 is inherently smaller than that of the second end face 32, the sealing surface formed by the first end face 34 is smaller, and the sealing effect is poorer. In addition, since the first end face 34 also has the indentation 38 caused by the ejector pin, the sealing surface is further reduced, not only reducing the sealing effect of the lobe end seal, but also easily causing wear and internal leakage, and reducing the service life of the lobe end seal.

[0051] According to the first embodiment of the present application, the lobe end seal 130b of the fixed scroll is assembled into the seal groove 1244 of the moving scroll, and the feature 133 of the lobe end seal 130b can be arranged in the second groove portion 1243, but the main body portion 131 of the lobe end seal 130b cannot be assembled to the bottom of the first groove portion 1241, on the contrary, the main body portion 131 abnormally protrudes from the scroll end face 242, so that this misassembly condition is easily identified. On the other hand, the feature 133 of the lobe end seal is easy to realize in the mold (especially in the case of forming the feature and the main body portion integrally), and the second groove portion 1243 of the scroll lobe 24 is also very easy to process, so that this foolproof design does not cause the complication of production process and the increase of production cost. Figure 7b

[0052] In order to ensure the obviousness of the protrusion of the main body portion 131 from the scroll end face 242 in the case of misassembly, it is easy for those skilled in the art to understand that the height of the main body portion 131 in the axial direction should be much greater than the second depth of the second groove portion 1243. Preferably, the shape and size of the main body portion 131 match the shape and size of the first groove portion 1241, and the shape and size of the feature 133 match the shape and size of the second groove portion 1243, so that the assembly is simpler and the processing is easier. For example, the feature 133 and the second groove portion 1243 can be configured as a circle or a semicircle when viewed from the axial direction of the scroll member, thereby facilitating processing and manufacturing.

[0053] ​Additionally, preferably, the feature portion 133 is configured to protrude from the left and / or right side surfaces of the outer end portion of the main body portion 131 (e.g., Figure 7a As shown in the figure, this design provides advantages such as easy assembly and significant error prevention. However, those skilled in the art will understand that the feature portion 133 can also be formed to protrude from the inner end face and / or outer end face of the main body portion 131. Furthermore, the feature portion 133 is not limited to being located at the outer end of the main body portion 131, but can also be located in any section of the main body portion 131 in its extending direction, thereby meeting the flexible design requirements of the scroll blade and further improving its applicability.

[0054] Figure 8 and Figure 9 The blade tip seal 230a and sealing groove 2244 according to the second embodiment of the present invention are shown respectively. The blade tip seal 230a and sealing groove 2244 according to the second embodiment are similar in basic structure and arrangement to the blade tip seal 130a and sealing groove 1244 in the first embodiment, and will not be described again here. The difference is that the feature portion 233 of the blade tip seal 230a is formed by recessing from the first end face 34 of the main body portion 231 toward the second end face 32. That is, the main body portion 231 includes a recess 235 recessed from the first end face 34 toward the second end face 32, thereby forming a thickness reduction portion in the main body portion 231 at a position corresponding to the recess 235, which constitutes the feature portion 233. The top surface of the feature portion 233 is formed by a portion of the second end face 32 of the main body portion 230a, and the bottom surface of the feature portion 233 defines the recess 235. In other words, the feature portion 233 is aligned with the main body portion 231 in the extending direction of the main body portion 231.

[0055] Correspondingly, the seal groove 2244 for accommodating the leaf end seal 230a includes a first recessed portion 2241 having a first depth and a second recessed portion 2243 having a second depth, wherein the first depth is greater than the second depth. The positions of the first recessed portion 2241 and the second recessed portion 2243 correspond to the positions of the main body portion 231 and the feature portion 233 of the leaf end seal 230a, respectively. In other words, the first recessed portion 2241 is provided with a protrusion protruding from the bottom of the first recessed portion 2241 at a position corresponding to the recess 235 of the leaf end seal 230a, thereby forming the second recessed portion 2243 in the first recessed portion 2241. Therefore, in the case of correct assembly of the leaf end seal and the scroll leaf (i.e. the leaf end seal 230a of the orbiting scroll is assembled into the seal groove 2244 of the orbiting scroll scroll leaf 24, and the leaf end seal 230b of the fixed scroll is assembled into the seal groove of the fixed scroll scroll leaf 14), the main body portion 231 of the leaf end seal 230a can be arranged in the first recessed portion 2241, and the feature portion 233 of the leaf end seal 230a can be arranged in the second recessed portion 2243, so that the leaf end seal 230a is in a predetermined working position, as shown in Figure 10a

[0056] In the case of incorrect assembly of the leaf end seal and the scroll leaf (i.e. in the case of assembling the leaf end seal 230b of the fixed scroll into the seal groove 2244 of the orbiting scroll), as shown in Figure 10b

[0057] ​​As can be understood by those skilled in the art, the main body 231 extends along the contour from the inside to the outside, so that the main body 231 includes a left side, a right side, an inner end and an outer end with respect to the extending direction of the main body 231. Although the recess 235 and the corresponding feature 233 are configured as a notch and a corresponding thickness reduction portion which are open to the outer end side at the outer end of the main body 231 in the drawings, the recess 235 and the corresponding feature 233 can also be configured as a notch and a corresponding thickness reduction portion which are open to the left side at the left side of the main body 231, a notch and a corresponding thickness reduction portion which are open to the right side at the right side of the main body 231, a notch and a corresponding thickness reduction portion which are open to the inner end side at the inner end of the main body 231, a slot and a corresponding thickness reduction portion which transversely pass through the main body 231, and / or a blind hole and a corresponding thickness reduction portion which are surrounded by the main body.

[0058] Figure 11 and Figure 12 The leaf end seal 330a and the seal groove 3244 according to the third embodiment of the present application are shown respectively. Among them, the leaf end seal 330a and the seal groove 3244 according to the third embodiment of the present application are similar to the basic structure and arrangement of the leaf end seal 130a and the seal groove 1244 in the first embodiment, and will not be described here. The difference is that the leaf end seal 330a includes a feature 333 with a first height and a main body 331 with a second height, where the first height is greater than the second height. The feature 333 can be integrally formed with the main body 331 by extending the first end surface 34 of the main body 331 in a direction away from the second end surface 32 by a predetermined distance, or can be formed separately from the main body 331 and fixedly connected to the main body 331. Correspondingly, the seal groove 3244 for accommodating the leaf end seal 330a includes a first recessed portion 3241 with a first depth and a second recessed portion 3243 with a second depth, where the first depth is less than the second depth. The positions of the first recessed portion 3241 and the second recessed portion 3243 correspond to the positions of the main body 331 and the feature 333 of the leaf end seal 330a respectively, so that in the case of correct assembly of the leaf end seal and the scroll leaf (i.e. the leaf end seal 330a of the moving scroll is assembled into the seal groove 3244 of the scroll leaf 34 of the moving scroll, and the leaf end seal 330b of the stationary scroll is assembled into the seal groove of the scroll leaf 14 of the stationary scroll), the main body 331 of the leaf end seal 330a can be arranged in the first recessed portion 3241, and the feature 333 of the leaf end seal 230a can be arranged in the second recessed portion 3243, so that the leaf end seal 330a is in a predetermined working position, as shown in Figure 13a

[0059] ​In the case of incorrect assembly of the blade tip seal and the scroll blade (i.e., assembling the blade tip seal 330b of the fixed scroll into the sealing groove 3244 of the moving scroll), such as Figure 13b As shown, the main body 331 of the blade tip seal 330b can be accommodated in the first groove 3241, but the feature portion 333 of the blade tip seal 330b cannot be fitted to the bottom of the second groove 3243. Instead, the feature portion 333 protrudes from the scroll end face 242, making the misfit easily identifiable, thus achieving an effect similar to the first embodiment. On the other hand, the feature portion 333 of the blade tip seal is formed separately. For example, a blade tip seal with the feature portion 333 according to the present invention can be obtained by adding a pin to an existing blade tip seal, thus broadening its applicability. The feature portion 233 of the blade tip seal is also easily realized in a mold or by reprocessing the demolded blade tip seal. The second groove 2243 of the scroll blade 24 is also very easy to process, thus simplifying the manufacturing process and making assembly easy.

[0060] Additionally, it should be noted that although the figure shows the feature portion 333 disposed in the inner or outer end of the main body portion 331 in the extending direction of the main body portion 331, those skilled in the art will understand that the feature portion 333 can be disposed at a position other than the inner or outer end of the main body portion 331 in the extending direction of the main body portion 131, thereby additionally facilitating installation and fixation and preventing the blade tip seal from detaching from the volute blade.

[0061] The accompanying drawings illustrate only three exemplary embodiments within the framework of this invention. Those skilled in the art will understand that the invention is not limited to the exemplary embodiments described above, but also includes variations or combinations of the various examples described above. For example, the feature may be constructed as one or more, and the cross-sectional shapes of the feature and the corresponding second groove may differ, as long as the feature can be accommodated in the second groove when properly assembled.

[0062] Although various embodiments of the invention have been described in detail herein, it should be understood that the invention is not limited to the specific embodiments described and shown herein, and other modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the invention. All such modifications and variations fall within the scope of the invention. Moreover, all components described herein can be replaced by other technically equivalent components.

Claims

1. A scroll component, the scroll component comprising an end plate (12, 22), scroll blades (14, 24) extending from one side of the end plate, and blade tip seals (130a, 130b, 230a, 230b), the scroll blades comprising scroll end faces (142, 242), wherein sealing grooves (1244, 2244) are formed at the scroll end faces, and the blade tip seals are inserted into the sealing grooves. Its features are, The sealing groove includes a first groove portion (1241, 2241) having a first depth and extending generally along the profile of the volute blade, and a second groove portion (1243, 2243) having a second depth, the first depth being greater than the second depth. The blade tip seal includes a feature portion (133, 233) and a main body portion (131, 231) extending generally along the profile, the feature portion being formed at a position corresponding to the second groove portion. The feature portion and the second groove portion are configured such that: When assembling the vortex component, if the blade end seal and the vortex blade are correctly assembled, the main body can be arranged in the first groove and the feature portion can be arranged in the second groove, so that the blade end seal is in a predetermined working position. However, if the blade end seal and the vortex blade are incorrectly assembled, the main body protrudes abnormally from the vortex end face, thereby enabling the identification of incorrect assembly.

2. The vortex component according to claim 1, wherein, The main body includes a first end face (34) facing the bottom of the sealing groove, a second end face (32) opposite to the first end face serving as a sealing surface, and a side face (36) extending between the first end face and the second end face, the feature being configured to protrude from the side face.

3. The vortex component according to claim 2, wherein, The feature portion extends a predetermined distance from the second end face toward the first end face, and the predetermined distance is less than the distance between the first end face and the second end face.

4. The vortex component according to claim 2, wherein, The feature portion is formed integrally or separately from the main body portion.

5. The vortex component according to claim 2, wherein: The main body extends from the inside to the outside along the profile, and the side surfaces include a left side, a right side, an inner end face, and an outer end face relative to the extending direction of the main body. The feature portion is one or more, and the feature portion protrudes from the left side, the right side, the inner end face and / or the outer end face.

6. The vortex component according to claim 5, wherein, The feature portion is constructed as a feature portion protruding from the left or right side of the outer end of the main body portion, and the feature portion and the corresponding second groove portion are semi-circular when viewed along the axial direction of the vortex component.

7. The vortex component according to claim 1, wherein, The main body includes a first end face (34) facing the bottom of the sealing groove, a second end face (32) opposite to the first end face serving as a sealing surface, and a side face (36) extending between the first end face and the second end face. A recess (235) is provided in the main body that is recessed from the first end face toward the second end face, thereby forming a thickness reduction portion at a position of the main body corresponding to the recess, the thickness reduction portion constituting the feature portion.

8. The vortex component according to claim 7, wherein: The main body extends from the inside to the outside along the profile, thereby including a left side, a right side, an inner end, and an outer end relative to the extending direction of the main body. The recess and the corresponding feature portion are one or more sets, and the recess and the corresponding feature portion are constructed as follows: a recess and a corresponding thickness reduction portion provided on the left side portion, a recess and a corresponding thickness reduction portion provided on the right side portion, a recess and a corresponding thickness reduction portion provided on the inner end portion, a recess and a corresponding thickness reduction portion provided on the outer end portion, a recess and a corresponding thickness reduction portion provided on the outer end portion, a slot that extends laterally through the main body portion and a corresponding thickness reduction portion, and / or a blind hole surrounded by the main body portion and a corresponding thickness reduction portion.

9. The vortex component according to claim 7, wherein, In the first groove portion, a protrusion is provided at a position corresponding to the recess, protruding from the bottom of the first groove portion, thereby forming the second groove portion in the first groove portion.

10. A scroll component comprising an end plate (12, 22), scroll blades (14, 24) extending from one side of the end plate, and blade tip seals (330a, 330b), the scroll blades comprising scroll end faces (142, 242) with a sealing groove (3244) formed therein, the blade tip seals being inserted into the sealing grooves. Its features are, The sealing groove includes a first groove portion (3241) having a first depth and extending substantially along the profile of the volute blade, and a second groove portion (3243) having a second depth, the first depth being less than the second depth. The blade tip seal includes a feature portion (333) and a main body portion (331), the feature portion being formed at a position corresponding to the second groove portion. The main body extends generally along the profile from the inside to the outside, and thus includes an inner end and an outer end relative to the extending direction of the main body. The feature portion is formed at a position on the main body other than the inner end and the outer end. The feature portion and the second groove portion are configured such that: When assembling the vortex component, if the blade end seal and the vortex blade are correctly assembled, the main body can be arranged in the first groove and the feature portion can be arranged in the second groove, so that the blade end seal is in a predetermined working position. If the blade end seal and the vortex blade are incorrectly assembled, the feature portion protrudes from the vortex end face, thereby enabling the identification of the incorrect assembly.

11. The vortex component according to claim 10, wherein, The feature portion is one or more, and / or the feature portion is integrally or separately formed with the main body portion.

12. The vortex component according to any one of claims 1 to 11, wherein, The main body is constructed to have a generally trapezoidal cross-section, and the width of the second end face (32) of the main body serving as the sealing surface is greater than the width of the first end face (34) of the main body facing the bottom of the sealing groove.

13. A compression mechanism, the compression mechanism comprising a fixed scroll component and a moving scroll component, characterized in that, The fixed vortex component and / or the moving vortex component are configured as vortex components as described in any one of claims 1 to 12.

14. A scroll compressor, characterized in that, The scroll compressor includes the compression mechanism according to claim 13.

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