Supercharger assembly structure and engine

Abstract

The utility model discloses a supercharger component structure and engine relates to turbocharging technical field, supercharger component structure includes: mounting disk, back plate and blade, mounting disk and back plate are opposite and spaced apart, mounting disk and back plate are fixed connection, blade main part is located between mounting disk and back plate, and blade main part is located in the back plate. The blade shaft extends in the arrangement direction of the mounting disc and the back plate and is rotatably arranged on the mounting disc, the blade body is provided with a first surface facing the back plate, the first surface makes contact with the back plate and is provided with an inclined face adjacent to the edge of the blade body, and the inclined face inclines towards the mounting disc in the direction from the inner end of the inclined face to the outer end of the inclined face. The inclined surface is spaced apart from the back plate. According to the supercharger assembly structure, the probability that the blades and the back plate are clamped can be reduced, so that the risk that the supercharger assembly structure is clamped can be reduced, the service life of the supercharger assembly structure is prolonged, and the working safety of an engine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turbocharging, in particular to a supercharger component structure and an engine with the supercharger component structure. Background Art

[0002] In the related art, the supercharger assembly structure includes a mounting plate, a back plate and blades. After the supercharger assembly structure has been working for a long time, the blade shaft will wear out, causing the blades to tilt. The blades will scrape the back plate, causing the supercharger assembly structure to become stuck, affecting the performance of the engine. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a supercharger assembly structure that reduces the probability of blades and backplates becoming stuck, thereby reducing the risk of the supercharger assembly structure becoming stuck, thereby extending the service life of the supercharger assembly structure and improving engine operating safety.

[0004] The utility model also provides an engine using the supercharger assembly structure.

[0005] According to the supercharger assembly structure of the embodiment of the first aspect of the present utility model, it includes: a mounting plate, a backplate and a blade, the mounting plate and the backplate are opposite and spaced apart, and the mounting plate and the backplate are fixedly connected, the blade includes a blade body and a blade shaft, the blade body and the blade shaft are fixedly connected, the blade body is located between the mounting plate and the backplate, the blade shaft extends along the arrangement direction of the mounting plate and the backplate and is rotatably provided on the mounting plate, the blade body has a first surface facing the backplate, the first surface contacts the backplate, the first surface has an inclined surface adjacent to the edge of the blade body, from the inner end of the inclined surface to the outer end of the inclined surface, the inclined surface is inclined toward the mounting plate, and the inclined surface is spaced apart from the backplate.

[0006] According to the supercharger assembly structure of the present application, the probability of the blade body and the back plate being scratched can be reduced, and the probability of the blade and the back plate being stuck can be reduced, thereby reducing the risk of the supercharger assembly structure being stuck, which is beneficial to extending the service life of the supercharger assembly structure and improving the safety of engine operation.

[0007] According to some embodiments of the present invention, the inclined surface is a plane.

[0008] According to some embodiments of the present invention, a curved surface convex toward the back plate is formed in the middle of the first surface, the curved surface is adjacent to the inclined surface, and the curved surface is in contact with the back plate.

[0009] According to some embodiments of the present invention, the inclined surface is arranged around the arcuate surface along the circumference of the arcuate surface.

[0010] According to some embodiments of the present invention, the arc-shaped surface is configured as a circular arc surface.

[0011] According to some embodiments of the present invention, an arcuate surface protruding toward the back plate is formed in the middle of the first surface, and there are two inclined surfaces, which are respectively located on opposite sides of the arcuate surface, and the arcuate surface is connected between the two inclined surfaces.

[0012] According to some embodiments of the present invention, along the arrangement direction of the two inclined surfaces and the curved surface, the length dimension of the blade body is L1, the curved surface is an arc, and the radius of the sphere corresponding to the curved surface is L2, satisfying the relationship: L2≤0.2L1.

[0013] According to some embodiments of the present invention, the supercharger assembly structure further includes: a support boss, the blade body having a second surface facing the mounting plate, the support boss being fixed on the second surface and opposite to the mounting plate, and the support boss being suitable for contacting the mounting plate.

[0014] According to some embodiments of the present invention, the blade shaft is connected to the second surface, and the supporting boss is annular and is arranged around the blade shaft.

[0015] The engine according to the second embodiment of the present invention includes the supercharger assembly structure described in the above embodiment.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the coordinated assembly of the mounting plate, back plate, and blades according to an embodiment of the present application.

[0019] Reference numerals:

[0020] Supercharger assembly structure 1,

[0021] Mounting plate 10, mounting hole 11, back plate 20,

[0022] Blade 30, blade body 31, first surface 311, inclined surface 3111, arcuate surface 3112, second surface 312, blade shaft 32,

[0023] Support boss 40 . DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] Reference below Figure 1 A supercharger assembly structure 1 according to an embodiment of the present invention is described. The supercharger assembly structure 1 can be installed on an engine.

[0026] According to the supercharger assembly structure 1 of the first embodiment of the present utility model, Figure 1 As shown, the supercharger assembly structure 1 may include: a mounting plate 10, a back plate 20 and a blade 30, the mounting plate 10 and the back plate 20 are opposite and spaced apart, and the mounting plate 10 and the back plate 20 are fixedly connected, the blade 30 includes a blade body 31 and a blade shaft 32, the blade body 31 and the blade shaft 32 are fixedly connected, the blade body 31 is located between the mounting plate 10 and the back plate 20, the blade shaft 32 extends along the arrangement direction of the mounting plate 10 and the back plate 20 and is rotatably provided on the mounting plate 10, the blade body 31 has a first surface 311 facing the back plate 20, the first surface 311 is in contact with the back plate 20, the first surface 311 has an inclined surface 3111 adjacent to the edge of the blade body 31, from the inner end of the inclined surface 3111 to the outer end of the inclined surface 3111, the inclined surface 3111 is inclined toward the mounting plate 10, and the inclined surface 3111 is spaced apart from the back plate 20.

[0027] It should be noted that in the related art, the supercharger assembly structure has a mounting plate, a back plate and blades. After the supercharger assembly structure has been working for a long time, the blade shaft may wear and the blade may tilt. The blade scrapes the back plate, causing the supercharger assembly structure to become stuck, affecting the performance of the engine.

[0028] Based on this, an embodiment of the present application proposes a supercharger assembly structure 1, wherein a mounting plate 10 and a back plate 20 can be arranged relative to each other and spaced apart. The mounting plate 10 and the back plate 20 can be arranged parallel to each other, with a gap between the mounting plate 10 and the back plate 20. The mounting plate 10 and the back plate 20 can be connected by pins, bolts, etc., and the mounting plate 10 and the back plate 20 can be relatively stationary. As an example, a connecting pin can be provided between the mounting plate 10 and the back plate 20, and the mounting plate 10 and the back plate 20 can be connected by the connecting pin. The connecting pin can be connected to the mounting plate 10 and the back plate 20 respectively, thereby connecting the mounting plate 10 and the back plate 20. The connecting pin can support the mounting plate 10 and the back plate 20, and the connecting pin can space the mounting plate 10 and the back plate 20 apart. The blade 30 may include a blade body 31 and a blade shaft 32. The blade body 31 may be constructed as a sheet-like structure having a certain thickness. The blade body 31 may be welded to the blade shaft 32, or the blade body 31 and the blade shaft 32 may be integrally formed. The central axis of the blade body 31 may be collinear with the central axis of the blade shaft 32, thereby ensuring stability during rotation of the blade 30. The blade body 31 may be located between the mounting plate 10 and the back plate 20, and the blade shaft 32 may be inserted through the mounting plate 10. The mounting plate 10 may have a mounting hole 11 formed therein. The mounting hole 11 may extend through the mounting plate 10 along the thickness direction (i.e., the alignment direction of the mounting plate 10 and the back plate 20). The blade shaft 32 may extend along the alignment direction of the mounting plate 10 and the back plate 20. The blade shaft 32 may be inserted through the mounting hole 11. The blade shaft 32 may rotate relative to the mounting plate 10, driving the blade body 31 to rotate, thereby allowing the blade body 31 to rotate between the mounting plate 10 and the back plate 20.

[0029] As an example, there may be multiple blades 30, and the multiple blades 30 may be staggered and arranged in sequence. The multiple blades 30 may be evenly arranged along the circumference of the mounting plate 10. There may be multiple mounting holes 11, and the multiple mounting holes 11 may be arranged in a one-to-one correspondence with the multiple blade shafts 32, with each blade shaft 32 having a corresponding mounting hole 11. Along the arrangement direction of the mounting plate 10 and the back plate 20, a toggle plate may be provided on the side of the mounting plate 10 facing away from the back plate 20, and the toggle plate may be provided with a toggle member. The toggle member may be multiple, and the multiple blade shafts 32 are arranged in a one-to-one correspondence with the multiple toggle members. The side of the blade shaft 32 facing away from the blade body 31 is connected to the corresponding toggle member. The toggle plate can rotate a certain angle relative to the mounting plate 10. When the toggle plate rotates, the toggle plate can drive the blades 30 to rotate a certain angle. The multiple blades 30 can move synchronously and can rotate the same angle at the same time, thereby achieving the effect of controlling the opening of the blades 30 in the supercharger assembly structure 1, and the exhaust gas generated by the engine can enter the supercharger through the gaps between the multiple blades 30.

[0030] Along the arrangement direction of the mounting plate 10 and the back plate 20, the blade body 31 has a first surface 311 facing the back plate 20. The first surface 311 can contact the back plate 20. When the blade 30 rotates, the first surface 311 can rub against the back plate 20. The first surface 311 has an inclined surface 3111. The inclined surface 3111 can be adjacent to the edge of the blade body 31. The inclined surface 3111 can extend from the central axis of the blade shaft 32 to the edge of the blade body 31. The inclined surface 3111 has a certain length from the inner end of the inclined surface 3111 to the outer end of the inclined surface 3111. The inclined surface 3111 is inclined toward the mounting plate 10. It should be noted that along the central axis of the blade shaft 32 to the edge of the blade body 31, the direction closer to the central axis of the blade shaft 32 is the inner side, and the direction away from the central axis of the blade shaft 32 is the outer side. The inclined surface 3111 may be spaced apart from the back plate 20 , thereby reducing the contact area between the first surface 311 and the back plate 20 and reducing the friction between the blade body 31 and the back plate 20 .

[0031] In the embodiment of the present application, the blade shaft 32 may wear out after prolonged use, and the blade shaft 32 may tilt after wear, thereby causing the blade body 31 to tilt. By providing the first surface 311 having the inclined surface 3111 on the blade body 31, when the blade body 31 tilts, the inclined surface 3111 remains separated from the back plate 20, thereby reducing the probability of the blade body 31 and the back plate 20 being scratched, and reducing the probability of the blade 30 and the back plate 20 being stuck, thereby reducing the risk of the supercharger assembly structure 1 being stuck, which is beneficial for extending the service life of the supercharger assembly structure 1 and improving the safety of engine operation.

[0032] In some embodiments of the present invention, the inclined surface 3111 is a plane.

[0033] By configuring the inclined surface 3111 as a flat surface, the distance between the inclined surface 3111 and the back plate 20 can be increased, further reducing the probability of the inclined surface 3111 and the back plate 20 being scratched, thereby improving the operational safety of the supercharger assembly structure 1. Furthermore, the flat inclined surface 3111 facilitates production and processing, thereby reducing the production cost of the supercharger assembly structure 1.

[0034] In some embodiments of the present invention, Figure 1 As shown, a curved surface 3112 convex toward the back plate 20 is formed in the middle of the first surface 311 . The curved surface 3112 is adjacent to the inclined surface 3111 , and the curved surface 3112 is in contact with the back plate 20 .

[0035] The first surface 311 may be formed with a curved surface 3112, which may be located in the middle of the first surface 311. The curved surface 3112 may be disposed opposite the blade shaft 32 along the arrangement direction of the mounting plate 10 and the back plate 20. The center of the curved surface 3112 may be collinear with the central axis of the blade body 31, that is, the center of the curved surface 3112 may be collinear with the central axis of the blade shaft 32. The curved surface 3112 protrudes toward the back plate 20 and may contact the back plate 20. When the blade 30 rotates, the curved surface 3112 may be used to support the blade 30, thereby reducing vibration of the blade 30 during rotation and reducing the probability of damage to the blade shaft 32 due to friction between the blade shaft 32 and the mounting plate 10. When the blade shaft 32 drives the blade body 31 to rotate, the blade body 31 can rotate around the center of the curved surface 3112. The curved surface 3112 supports the blade body 31, thereby achieving stable rotation of the blade body 31, which helps to ensure the balance of the blade body 31 and further ensure the safe rotation of the blade 30. The curved surface 3112 contacts the back plate 20, and the inclined surface 3111 is separated from the back plate 20. This can reduce the contact area between the blade body 31 and the back plate 20, reduce the risk of scratching the blade body 31 and the back plate 20, and improve the safety of the blade 30.

[0036] The inclined surface 3111 and the curved surface 3112 are smoothly connected. The connection between the inclined surface 3111 and the curved surface 3112 can be connected in a variety of ways. As an example, the inclined surface 3111 can be tangent to the curved surface 3112. As another example, the connection between the inclined surface 3111 and the curved surface 3112 can be chamfered. By providing a smooth connection between the inclined surface 3111 and the curved surface 3112, the probability of the inclined surface 3111 and the curved surface 3112 scratching the back panel 20 at the connection can be reduced.

[0037] In some embodiments of the present invention, the inclined surface 3111 is disposed around the arcuate surface 3112 along the circumference of the arcuate surface 3112 .

[0038] There can be multiple inclined surfaces 3111, and multiple inclined surfaces 3111 can be arranged around the curved surface 3112 along the circumference of the curved surface 3112. Multiple inclined surfaces 3111 can all be adjacent to the curved surface 3112, and multiple inclined surfaces 3111 can all be separated from the back plate 20, so that the blade body 31 can be separated from the back plate 20 along the circumference of the curved surface 3112, further reducing the probability of the blade 30 scratching the back plate 20 when rotating, further reducing the risk of the blade 30 getting stuck, which is beneficial to improving the safety of the blade 30 when rotating.

[0039] In some embodiments of the present invention, the arc surface 3112 is configured as an arc surface.

[0040] When the blade body 31 rotates, the arc surface 3112 constructed as a circular arc surface can be tangent to the back plate 20 along the circumference of the arc surface 3112. The surface of the circular arc surface is smooth. When the blade 30 rotates, the arc surface 3112 can be tangent to the back plate 20 from multiple directions. The arc surface 3112 can bear loads in multiple directions, which is beneficial to reducing the friction between the blade body 31 and the back plate 20, reducing the wear of the blade body 31 after long-term rotation, and helping to extend the service life of the blade 30.

[0041] In some embodiments of the present invention, an arcuate surface 3112 protruding toward the back plate 20 is formed in the middle of the first surface 311. There are two inclined surfaces 3111, which are respectively located on opposite sides of the arcuate surface 3112, and the arcuate surface 3112 is connected between the two inclined surfaces 3111.

[0042] There may be two inclined surfaces 3111, and the arcuate surface 3112 may be provided in the middle of the first surface 311, and the center position of the arcuate surface 3112 may be collinear with the central axis of the blade body 31. The two inclined surfaces 3111 may be provided on opposite sides of the arcuate surface 3112, respectively, and the arcuate surface 3112 may be adjacent to the two inclined surfaces 3111, and the arcuate surface 3112 may be provided between the two inclined surfaces 3111. As an example, the blade body 31 may be constructed as a sheet-like structure having a certain thickness, and the two inclined surfaces 3111 may be provided opposite to each other and spaced apart along the first direction. When the blade body 31 is as shown in FIG. Figure 1 When setting the direction, the first direction is Figure 1 The two inclined surfaces 3111 extend in the first direction, slanting toward the mounting plate 10 from their inner ends to their outer ends. Both inclined surfaces 3111 are spaced apart from the backplate 20, thereby ensuring that only the portion of the curved surface 3112 of the blade 30 contacts the backplate 20. When the blade 30 rotates about the center of the curved surface 3112, if the blade shaft 32 wears and the blade body 31 tilts, the two inclined surfaces 3111 are spaced apart from the backplate 20. This reduces the likelihood of scratches between the blade body 31 and the backplate 20, thereby reducing the probability of failure of the supercharger assembly structure 1.

[0043] In some embodiments of the present invention, along the arrangement direction of the two inclined surfaces 3111 and the curved surface 3112, the length dimension of the blade body 31 is L1, the curved surface 3112 is an arc, and the radius of the sphere corresponding to the curved surface 3112 is L2, satisfying the relationship: L2≤0.2L1.

[0044] like Figure 1As shown, along the first direction, the length dimension of the blade body 31 is L1, the arcuate surface 3112 is configured as an arc, and the radius of the sphere corresponding to the arcuate surface 3112 is L2. For example, the radius of the sphere corresponding to the arcuate surface 3112 can be 0.05L1, 0.1L1, 0.16L1, 0.2L1, etc., and the radius of the sphere corresponding to the arcuate surface 3112 can be less than or equal to 0.2L1. Any value, including the endpoint value, is an optional radius of the sphere corresponding to the arcuate surface 3112 in the present invention. When the length of the inclined surface 3111 is constant, that is, when the arc length of the inclined surface 3111 along the first direction is constant, if the radius of the sphere corresponding to the curved surface 3112 is greater than 0.2L1, the curvature of the curved surface 3112 is small, and the distance that the curved surface 3112 protrudes from the first surface 311 is small. When the blade 30 rotates, it is easy to wear and form a long straight edge, which can easily cause the blade body 31 to scrape against the back plate 20, affecting the safety of the blade 30 during operation. Therefore, when the radius of the sphere corresponding to the curved surface 3112 is less than or equal to 0.2L1, the distance that the curved surface 3112 protrudes from the first surface 311 is large. When the blade 30 rotates about the center of the curved surface 3112, the probability of scraping between the blade body 31 and the back plate 20 is reduced, which helps reduce the probability of failure of the supercharger assembly structure 1.

[0045] In some embodiments of the present invention, the supercharger assembly structure 1 may further include: a support boss 40, the blade body 31 has a second surface 312 facing the mounting plate 10, the support boss 40 is fixed to the second surface 312 and opposite to the mounting plate 10, and the support boss 40 is suitable for contacting the mounting plate 10.

[0046] The blade body 31 has a second surface 312, which is located on the side of the blade body 31 facing the mounting disk 10. The first surface 311 and the second surface 312 are arranged relative to each other along the arrangement direction of the mounting disk 10 and the back plate 20. The support boss 40 is provided on the second surface 312, and the support boss 40 can be integrally formed with the blade body 31. When the blade 30 is assembled with the mounting disk 10, the support boss 40 can contact the mounting disk 10, and the support boss 40 can play the role of spacing the mounting disk 10 and the blade body 31, thereby preventing the second surface 312 from scratching the mounting disk 10. When the blade shaft 32 is worn and tilted, the support boss 40 can abut against the mounting disk 10, and the support boss 40 can prevent the blade body 31 from further tilting, thereby reducing the probability of the first surface 311 scratching the back plate 20. The support boss 40 can also prevent the exhaust gas from blowing directly into the gap between the blade 30, the mounting plate 10 and the back plate 20 through the mounting hole 11, reducing the probability of scratches and dents caused by excessive temperature of the blade 30, which is beneficial to improving the safety of the blade 30.

[0047] In some embodiments of the present invention, the blade shaft 32 is connected to the second surface 312 , and the supporting boss 40 is annular and disposed around the blade shaft 32 .

[0048] The second surface 312 is located on the side of the blade body 31 facing the mounting plate 10, and the blade shaft 32 is connected to the second surface 312. A support boss 40 is disposed between the blade shaft 32 and the blade body 31, and is provided on the second surface 312. The support boss 40 can be annular and disposed around the blade shaft 32, thereby isolating the mounting plate 10 from the blade body 31 along the circumference of the blade shaft 32. This can reduce the probability of the second surface 312 rubbing against the mounting plate 10 along the circumference of the blade shaft 32.

[0049] In some embodiments of the present invention, the first surface 311 of the blade 30 is constructed as an inclined surface 3111 and a curved surface 3112, and a supporting boss 40 is provided on the second surface 312. The shape of the blade 30 changes, but compared with the prior art, the cross-sectional area of ​​the blade 30 does not change, the flow rate of the gas passing through the supercharger assembly structure 1 does not change, and the performance of the engine will not be affected.

[0050] The engine according to the embodiment of the second aspect of the present utility model includes the supercharger assembly structure 1 in the above embodiment.

[0051] According to the engine of the embodiment of the present application, using the supercharger assembly structure 1 of the above embodiment can reduce the risk of the supercharger assembly structure 1 getting stuck, reduce the probability of engine failure, and help improve the safety of engine operation.

[0052] The supercharger assembly structure 1 and other components and operations of the engine according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0053] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0054] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A supercharger assembly structure, characterized in that: include: A mounting plate (10), a back plate (20) and a blade (30), wherein the mounting plate (10) and the back plate (20) are opposite to each other and spaced apart, and the mounting plate (10) and the back plate (20) are fixedly connected, and the blade (30) comprises a blade body (31) and a blade shaft (32), wherein the blade body (31) and the blade shaft (32) are fixedly connected, and the blade body (31) is located between the mounting plate (10) and the back plate (20), and the blade shaft (32) extends along the arrangement direction of the mounting plate (10) and the back plate (20) and can be rotated. The blade body (31) is rotatably arranged on the mounting plate (10), and has a first surface (311) facing the back plate (20), and the first surface (311) contacts the back plate (20), and the first surface (311) has an inclined surface (3111) adjacent to the edge of the blade body (31), and from the inner end of the inclined surface (3111) to the outer end of the inclined surface (3111), the inclined surface (3111) is inclined toward the mounting plate (10), and the inclined surface (3111) is spaced apart from the back plate (20).

2. The supercharger assembly structure according to claim 1, characterized in that: The inclined surface (3111) is a plane.

3. The supercharger assembly structure according to claim 1, characterized in that: A curved surface (3112) protruding toward the back plate (20) is formed in the middle of the first surface (311), the curved surface (3112) is adjacent to the inclined surface (3111), and the curved surface (3112) is in contact with the back plate (20).

4. The supercharger assembly structure according to claim 3, characterized in that: The inclined surface (3111) is arranged around the arcuate surface (3112) along the circumference of the arcuate surface (3112).

5. The supercharger assembly structure according to claim 3, characterized in that: The arc surface (3112) is constructed as an arc surface.

6. The supercharger assembly structure according to claim 1, characterized in that: A curved surface (3112) protruding toward the back plate (20) is formed in the middle of the first surface (311), and there are two inclined surfaces (3111). The two inclined surfaces (3111) are respectively located on opposite sides of the curved surface (3112), and the curved surface (3112) is connected between the two inclined surfaces (3111).

7. The supercharger assembly structure according to claim 6, characterized in that: Along the arrangement direction of the two inclined surfaces (3111) and the arcuate surface (3112), the length dimension of the blade body (31) is L1, the arcuate surface (3112) is an arc, and the radius of the sphere corresponding to the arcuate surface (3112) is L2, satisfying the relationship: L2≤0.2L1.

8. The supercharger assembly structure according to any one of claims 1 to 7, characterized in that: Also includes: The blade body (31) has a second surface (312) facing the mounting plate (10), the supporting boss (40) is fixed on the second surface (312) and is opposite to the mounting plate (10), and the supporting boss (40) is suitable for contacting the mounting plate (10).

9. The supercharger assembly structure according to claim 8, characterized in that: The blade shaft (32) is connected to the second surface (312), and the supporting boss (40) is annular and arranged around the blade shaft (32).

10. An engine, characterized in that: The invention comprises a supercharger assembly structure (1) according to any one of claims 1 to 9.

Images