CN220857731U - High-speed motor and air compressor - Google Patents
High-speed motor and air compressor Download PDFInfo
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- CN220857731U CN220857731U CN202322436269.1U CN202322436269U CN220857731U CN 220857731 U CN220857731 U CN 220857731U CN 202322436269 U CN202322436269 U CN 202322436269U CN 220857731 U CN220857731 U CN 220857731U
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Abstract
The application relates to a high-speed motor and an air compressor, and relates to the technical field of turbomachinery, wherein the high-speed motor comprises a stator; the connecting sleeve is arranged in the stator and is connected with the inner wall of the stator; the rotor is sleeved in the connecting sleeve, and an air gap is formed between the outer wall of the rotor and the inner wall of the stator; the outer wall of the rotor and/or the inner wall of the connecting sleeve are/is provided with an inner concave surface so as to increase the width of an air gap in a region corresponding to the inner concave surface; the width of the air gap characterizes the size of the air gap in the radial direction of the rotor. The high-speed motor and the air compressor can effectively reduce the wind mill loss, thereby reducing the energy consumption of the high-speed motor.
Description
Technical Field
The application relates to the technical field of turbomachinery, in particular to a high-speed motor and an air compressor.
Background
Turbomachinery is a device capable of converting fluid energy into mechanical energy. An air compressor, which is a kind of turbo machinery, is a device for compressing gas, and stores energy by increasing the pressure of the gas. The high-speed motor is a key component for the operation of the air compressor, and performance indexes such as compression ratio, exhaust capacity, working efficiency and the like of the air compressor can be controlled and optimized. In the related art, a large amount of energy loss is generated by wind resistance and friction in the high-speed running process of the high-speed motor, namely the wind abrasion loss of the high-speed motor in the related art is higher, and the energy consumption of the high-speed motor is higher.
Disclosure of utility model
In order to solve the technical problems, the embodiment of the application provides a high-speed motor and an air compressor, which can effectively reduce the wind mill loss, thereby reducing the energy consumption of the high-speed motor.
In a first aspect, there is provided a high-speed motor comprising:
A stator;
the connecting sleeve is arranged in the stator and is connected with the inner wall of the stator;
The rotor is sleeved in the connecting sleeve, and an air gap is formed between the outer wall of the rotor and the inner wall of the stator; the outer wall of the rotor and/or the inner wall of the connecting sleeve are/is provided with an inner concave surface so as to increase the width of the air gap in the corresponding area of the inner concave surface; the width of the air gap characterizes the size of the air gap along the radial direction of the rotor.
According to a first aspect of the application, the rotor comprises:
a rotating shaft;
the magnetic body is sleeved on the rotating shaft, and the inner concave surface is arranged on the outer wall of the magnetic body.
According to a first aspect of the present application, the inner concave surface includes a first sub-concave surface and a second sub-concave surface, and the first sub-concave surface and the second sub-concave surface are symmetrically arranged about a first preset plane; wherein the first preset plane surface is marked on one plane of the axis of the rotating shaft.
According to a first aspect of the application, the first sub-concave surface comprises a first edge line and a second edge line, and the first edge line and the second edge line are parallel to the axis of the rotating shaft;
The second concave surface comprises a third side line and a fourth side line, and the third side line and the fourth side line are parallel to the axis of the rotating shaft;
Wherein the first and third edges are collinear; the second edge line is collinear with the fourth edge line.
According to a first aspect of the present application, the first concave sub-surface further includes a first concave bottom line, the first concave bottom line is parallel to the axis of the rotating shaft, and the first concave bottom line is located between the first side line and the second side line;
A first transition concave surface is formed between the first side line and the first concave bottom line, and the distance between the first transition concave surface and the inner wall of the connecting sleeve is gradually increased along a first direction; wherein the first direction characterizes a direction of movement from the first edge line to the first concave bottom line along the first transition concave surface;
A second transition concave surface is formed between the second side line and the first concave bottom line, and the distance between the second transition concave surface and the inner wall of the connecting sleeve is gradually reduced along a second direction; wherein the second direction characterizes a direction of movement from the first concave bottom line to the second side line along the second transitional concave surface.
According to a first aspect of the present application, the first transition concave surface and the second transition concave surface are symmetrically arranged about a second preset plane; wherein the second preset plane surface is used for indicating the planes of the first concave bottom line and the axis of the rotating shaft; the second preset plane is perpendicular to the first preset plane.
According to the first aspect of the application, the second concave sub-surface further comprises a second concave bottom line, the second concave bottom line is parallel to the axis of the rotating shaft, and the second concave bottom line is located between the third side line and the fourth side line;
A third transition concave surface is formed between the third side line and the second concave bottom line, and the distance between the third transition concave surface and the inner wall of the connecting sleeve is gradually increased along a third direction; wherein the third direction characterizes a direction of movement from the third line along the third transitional concavity to the second concave bottom line;
A fourth transition concave surface is formed between the fourth side line and the second concave bottom line, and the distance between the fourth transition concave surface and the inner wall of the connecting sleeve is gradually reduced along a fourth direction; wherein the fourth direction characterizes a direction of movement from the second concave bottom line to the fourth side line along the fourth transitional concave surface.
According to a first aspect of the present application, the third transition concave surface and the fourth transition concave surface are symmetrically arranged about a third preset plane; wherein the third preset plane surface is used for indicating the planes of the second concave bottom line and the axis of the rotating shaft; the third preset plane is perpendicular to the first preset plane.
According to a first aspect of the application, the concave inner surface comprises an elliptical surface.
In a second aspect, there is also provided an air compressor, including:
A high speed motor as hereinbefore described.
The embodiment of the application provides a high-speed motor and an air compressor, which comprise a stator, a connecting sleeve and a rotor, wherein the connecting sleeve is arranged in the stator, the connecting sleeve is connected with the inner wall of the stator, the rotor is sleeved in the connecting sleeve, and an air gap is formed between the outer wall of the rotor and the inner wall of the stator; the inner concave surface is arranged on the outer wall of the rotor, so that the width of an air gap in a region corresponding to the inner concave surface is increased, the rotating radius of the corresponding part of the inner concave surface of the rotor is reduced, and an air channel is increased when the rotor rotates, so that the wind mill loss is effectively reduced, and the energy consumption of the high-speed motor is reduced; the inner wall of the connecting sleeve is provided with the inner concave surface, so that the width of an air gap in a corresponding area of the inner concave surface is increased, an air channel is increased when the rotor rotates, air can pass through more easily, the wind mill loss is effectively reduced, and the energy consumption of the high-speed motor is reduced.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing embodiments of the present application in more detail with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate the application and together with the embodiments of the application, and not constitute a limitation to the application. In the drawings, like reference numerals generally refer to like parts or steps.
Fig. 1 is a schematic structural view of a high-speed motor according to an exemplary embodiment of the present application.
Fig. 2 is a schematic cross-sectional view of a connecting sleeve and a rotor according to an exemplary embodiment of the present application.
Fig. 3 is a schematic cross-sectional view of a stator according to an exemplary embodiment of the present application.
FIG. 4 is an expanded schematic view of a first concave sub-surface according to an exemplary embodiment of the present application.
FIG. 5 is an expanded schematic view of a second concave sub-surface according to an exemplary embodiment of the present application.
Reference numerals: 100-high-speed motor; 110-a stator; 120-connecting sleeve; 130-a rotor; 131-rotating shaft; 132-magnetic body; 140-concave; 141-a first sub-concave surface; 1411-a first edge; 1412-second edge; 1413-a first concave bottom line; 1414—a first transition concave surface; 1415-a second transition concave surface; 142-a second sub-concave surface; 1421-third edge; 1422-fourth edge; 1423-a second concave bottom line; 1424-third transition concavity; 1425-fourth transition concavity; 150-air gap.
Detailed Description
Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only some embodiments of the present application and not all embodiments of the present application, and it should be understood that the present application is not limited by the example embodiments described herein.
Fig. 1 is a schematic structural view of a high-speed motor according to an exemplary embodiment of the present application. Fig. 2 is a schematic cross-sectional view of a connecting sleeve and a rotor according to an exemplary embodiment of the present application. As shown in fig. 1 and 2, the high-speed motor 100 provided by the embodiment of the application may include a stator 110, a connecting sleeve 120 and a rotor 130, wherein the connecting sleeve 120 is disposed in the stator 110, the connecting sleeve 120 is connected with an inner wall of the stator 110, the rotor 130 is sleeved in the connecting sleeve 120, an air gap 150 is formed between an outer wall of the rotor 130 and an inner wall of the stator 110, the rotor 130 can rotate relative to the connecting sleeve 120, and during a high-speed rotation process of the rotor 130, air in the air gap 150 rubs with the rotor 130, so as to generate a large amount of energy loss (hereinafter referred to as windmilling loss). For this reason, in the embodiment of the present application, the inner concave surface 140 may be provided on the outer wall of the rotor 130 to reduce the windmilling loss.
Specifically, the manner of calculation of the windmilling loss may be referred to as follows:
Wherein, P w represents the windmilling loss; ρ represents the air density; ω represents the angular velocity of the rotor 130; r characterizes the radius of rotation of the rotor 130; l represents the length of a magnetic body 132 (described later) in the rotor 130 in the axial direction of the rotor 130; re characterizes the Reynolds number.
It should be appreciated that the provision of the concave surface 140 on the outer wall of the rotor 130 may increase the width of the air gap 150 in the corresponding region of the concave surface 140, reduce the radius of rotation R of the corresponding portion of the concave surface 140 of the rotor 130, and reduce the windmilling loss according to the foregoing formula, thereby reducing the power consumption of the high-speed motor 100. In addition, the width of the air gap 150 in the corresponding area of the concave surface 140 is increased, and the air passage during the rotation of the rotor 130 can be increased, so that the air can pass more easily, the windmilling loss is effectively reduced, and the energy consumption of the high-speed motor 100 is reduced.
It should be noted that the width of the air gap 150 according to the embodiment of the present application may be understood as the dimension of the air gap 150 along the radial direction of the rotor 130.
In an embodiment, an inner concave surface may be concavely disposed on the inner wall of the connecting sleeve 120, so that the width of the air gap 150 in the area corresponding to the inner concave surface may be increased, as described above, the width of the air gap 150 in the area corresponding to the inner concave surface may be increased, and the air passage when the rotor 130 rotates may be increased, so that air may more easily pass through, and the windmilling loss may be effectively reduced, thereby reducing the energy consumption of the high-speed motor 100.
In an embodiment, the concave surface 140 may be concavely formed on the inner wall of the connection sleeve 120 on the basis of the concave surface 140 formed on the outer wall of the rotor 130.
Therefore, the high-speed motor 100 provided by the embodiment of the application comprises a stator 110, a connecting sleeve 120 and a rotor 130, wherein the connecting sleeve 120 is arranged in the stator 110, the connecting sleeve 120 is connected with the inner wall of the stator 110, the rotor 130 is sleeved in the connecting sleeve 120, and an air gap 150 is formed between the outer wall of the rotor 130 and the inner wall of the stator 110; the inner concave surface 140 is arranged on the outer wall of the rotor 130, so that the width of the air gap 150 in the corresponding area of the inner concave surface 140 is increased, the rotation radius of the corresponding part of the inner concave surface 140 of the rotor 130 is reduced, and the air channel during the rotation of the rotor 130 is increased, thereby effectively reducing the windmilling loss and further reducing the energy consumption of the high-speed motor 100; the inner wall of the connecting sleeve 120 is provided with the inner concave surface, so that the width of the air gap 150 in the corresponding area of the inner concave surface is increased, the air passage when the rotor 130 rotates is increased, the air can pass through more easily, the windmilling loss is effectively reduced, and the energy consumption of the high-speed motor 100 is reduced.
In an embodiment, the concave surface 140 may include an elliptical surface, so that an elliptical cavity-shaped air gap 150 may be formed between the concave surface 140 and the inner wall of the connecting sleeve 120, and during the high-speed rotation of the rotor 130, the air in the elliptical cavity may flow more in accordance with the rotation trend of the rotor 130, so that the friction between the air and the outer wall of the rotor 130 may be reduced, thereby reducing the windmilling loss.
As shown in fig. 1 and 2, the rotor 130 may include a rotating shaft 131 and a magnetic body 132, the magnetic body 132 is sleeved on the rotating shaft 131, and an inner concave surface 140 is provided on an outer wall of the magnetic body 132. It should be understood that the magnetic body 132 may rotate along with the rotating shaft 131, the rotation radius of the corresponding portion of the concave surface 140 of the magnetic body 132 is reduced, the air gap 150 between the magnetic body 132 and the connecting sleeve 120 is increased, and the windmilling loss may be effectively reduced.
In an embodiment, in order to ensure the strength of the connecting sleeve 120 due to the thin sidewall of the connecting sleeve 120, the inner concave surface 140 is disposed on the outer wall of the magnetic body 132, so that the strength of the connecting sleeve 120 is not affected, and the width of the air gap 150 can be increased, thereby reducing the windmilling loss.
In an embodiment, during the manufacturing process of the magnetic body 132, the concave surface 140 may be manufactured by an integral molding process, and then the magnetic body 132 is assembled on the rotating shaft 131, so that the manufacturing and assembling processes are simple, which is beneficial to improving the production efficiency.
Fig. 3 is a schematic cross-sectional view of a stator according to an exemplary embodiment of the present application. As shown in fig. 2 and 3, the concave inner surface 140 may include a first concave sub-surface 141 and a second concave sub-surface 142, and the first concave sub-surface 141 and the second concave sub-surface 142 are symmetrically disposed about a first predetermined plane (a plane indicated by an arrow a in fig. 3), which may be understood as one of the planes passing through the axial direction of the shaft 131.
It should be appreciated that the first concave sub-surface 141 and the second concave sub-surface 142 are symmetrically disposed about the first preset plane, so that the width of the air gap 150 in the corresponding area of the first concave sub-surface 141 is the same as the width of the air gap 150 in the corresponding area of the second concave sub-surface 142, which is beneficial to air stable flow and improves stability of the rotor 130 during rotation.
FIG. 4 is an expanded schematic view of a first concave sub-surface according to an exemplary embodiment of the present application. FIG. 5 is an expanded schematic view of a second concave sub-surface according to an exemplary embodiment of the present application. As shown in fig. 3 to 5, the first sub-concave 141 includes a first edge 1411 and a second edge 1412, the first edge 1411 and the second edge 1412 are each parallel to the axis of the rotation shaft 131, the second sub-concave 142 includes a third edge 1421 and a fourth edge 1422, the third edge 1421 and the fourth edge 1422 are each parallel to the axis of the rotation shaft 131, and the first edge 1411 and the third edge 1421 are collinear, and the second edge 1412 is collinear with the fourth edge 1422.
That is, the magnetic body 132 is divided into two parts symmetrical about the first preset plane (the plane indicated by an arrow a in fig. 3), wherein the whole of the outer wall of one part is used to form the first sub-concave 141 and the whole of the outer wall of the other part is used to form the second sub-concave 142; in this way, the width of the air gap 150 in the region corresponding to the entire magnetic body 132 (including the region corresponding to the first concave sub-surface 141 and the region corresponding to the second concave sub-surface 142) can be increased to different extents, and the windmilling loss can be further reduced.
As shown in fig. 3 and 4, the first sub-concave surface 141 may further include a first concave bottom line 1413, the first concave bottom line 1413 being parallel to the axis of the rotary shaft 131, and the first concave bottom line 1413 being located between the first side line 1411 and the second side line 1412, a first transition concave surface 1414 being formed between the first side line 1411 and the first concave bottom line 1413, a distance between the first transition concave surface 1414 and an inner wall of the connecting sleeve 120 being gradually increased in a first direction (a direction indicated by an arrow B in fig. 3).
The first direction may be understood as a direction from the first edge 1411 to the first concave bottom 1413 along the first transition concave 1414.
It should be appreciated that the distance between the first transition concave 1414 and the inner wall of the connection sleeve 120 increases gradually in the first direction, and that in connection with fig. 2 the width of the air gap 150 may also be considered to increase gradually in the first direction. Compared with the condition that the width of the air gap 150 is unchanged along the first direction, the width of the air gap 150 is gradually increased along the first direction, so that air in the air gap 150 flows more in accordance with the rotation trend of the rotor 130 in the high-speed rotation process of the rotor 130, and friction between the air and the outer wall of the magnetic body 132 can be reduced, and the windmilling loss is reduced.
Similarly, a second transition concave surface 1415 is formed between the second side line 1412 and the first concave bottom line 1413, and the distance between the second transition concave surface 1415 and the inner wall of the connecting sleeve 120 gradually decreases in the second direction (the direction indicated by the arrow C in fig. 3).
The second direction may be understood as a direction moving from the first concave bottom line 1413 to the second side line 1412 along the second transition concave surface 1415.
Similarly, the distance from the second transition concave 1415 to the inner wall of the connection sleeve 120 decreases gradually in the second direction, and in conjunction with fig. 2, the width of the air gap 150 may also be considered to decrease gradually in the second direction. Compared with the condition that the width of the air gap 150 is unchanged along the second direction, the width of the air gap 150 is gradually reduced along the second direction, so that air in the air gap 150 flows more in accordance with the rotation trend of the rotor 130 in the high-speed rotation process of the rotor 130, and friction between the air and the outer wall of the magnetic body 132 can be reduced, and the windmilling loss is reduced.
As shown in fig. 3, the first transition concave 1414 and the second transition concave 1415 are symmetrically disposed about a second preset plane (a plane indicated by an arrow D in fig. 3), so that the distribution of the air gaps 150 in the area corresponding to the first transition concave 1414 and the distribution of the air gaps 150 in the area corresponding to the second transition concave 1415 are symmetrical, which is beneficial to air stable flow and improves the stability of the rotor 130 during rotation.
It should be noted that, the second preset plane may be understood as a plane passing through the first concave bottom line 1413 and the axis of the rotating shaft 131, and the second preset plane is perpendicular to the first preset plane.
As shown in fig. 3 and 4, the second concave sub-surface 142 may further include a second concave bottom line 1423, the second concave bottom line 1423 is parallel to the axis of the rotary shaft 131, and the second concave bottom line 1423 is located between the third line 1421 and the fourth line 1422, a third transition concave surface 1424 is formed between the third line 1421 and the second concave bottom line 1423, and a distance between the third transition concave surface 1424 and the inner wall of the connecting sleeve 120 gradually increases along a third direction (a direction indicated by an arrow E in fig. 3).
The third direction may be understood as a direction moving from the third line 1421 to the second concave bottom line 1423 along the third transition concave surface 1424.
It should be appreciated that the distance from the third transition concave surface 1424 to the inner wall of the connection sleeve 120 increases gradually in a third direction, and in connection with fig. 2, the width of the air gap 150 may also be considered to increase gradually in the third direction. Compared with the condition that the width of the air gap 150 is unchanged along the third direction, the width of the air gap 150 is gradually increased along the third direction, so that air in the air gap 150 flows more in accordance with the rotation trend of the rotor 130 in the high-speed rotation process of the rotor 130, and friction between the air and the outer wall of the magnetic body 132 can be reduced, and the windmilling loss is reduced.
Similarly, a fourth transition concave surface 1425 is formed between the fourth line 1422 and the second concave bottom line 1423, and the distance between the fourth transition concave surface 1425 and the inner wall of the connection sleeve 120 gradually decreases in the fourth direction (the direction indicated by the arrow F in fig. 3).
The fourth direction may be understood as a direction moving from the second concave bottom line 1423 to the fourth transition concave surface 1422 along the fourth transition concave surface 1425.
Similarly, the distance from the fourth transition concave surface 1425 to the inner wall of the connection sleeve 120 decreases gradually in the fourth direction, and in conjunction with fig. 2, the width of the air gap 150 may also be considered to decrease gradually in the fourth direction. Compared with the condition that the width of the air gap 150 is unchanged along the fourth direction, the width of the air gap 150 is gradually reduced along the fourth direction, so that air in the air gap 150 flows more in accordance with the rotation trend of the rotor 130 in the high-speed rotation process of the rotor 130, and friction between the air and the outer wall of the magnetic body 132 can be reduced, and the windmilling loss is reduced.
As shown in fig. 3, the third transition concave surface 1424 and the fourth transition concave surface 1425 are symmetrically disposed about a third preset plane (a plane indicated by an arrow G in fig. 3), so that the distribution of the air gaps 150 in the area corresponding to the third transition concave surface 1424 and the distribution of the air gaps 150 in the area corresponding to the fourth transition concave surface 1425 are symmetrical to each other, which is beneficial to air stable flow and improves the stability of the rotor 130 during rotation.
It should be noted that, the third preset plane may be understood as a plane passing through the second concave bottom line 1423 and the axis of the rotating shaft 131, where the third preset plane is perpendicular to the first preset plane.
It will be appreciated that the third predetermined plane (the plane indicated by arrow G in fig. 3) is coplanar with the second predetermined plane (the plane indicated by arrow D in fig. 3) as shown in fig. 3.
The embodiment of the application also provides an air compressor which can comprise the high-speed motor 100 and has all the functions of the high-speed motor 100. The advantageous effects of the air compressor can be referred to as the advantageous effects of the aforementioned high-speed motor 100.
The basic principles of the present application have been described above in connection with specific embodiments, but it should be noted that the advantages, benefits, effects, etc. mentioned in the present application are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be construed as necessarily possessed by the various embodiments of the application. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the application is not necessarily limited to practice with the above described specific details.
The block diagrams of the devices, apparatuses, devices, systems referred to in the present application are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
It is also noted that in the apparatus, devices and methods of the present application, the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present application.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the application to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.
Claims (10)
1. A high speed motor, comprising:
A stator;
the connecting sleeve is arranged in the stator and is connected with the inner wall of the stator;
The rotor is sleeved in the connecting sleeve, and an air gap is formed between the outer wall of the rotor and the inner wall of the stator; the outer wall of the rotor and/or the inner wall of the connecting sleeve are/is provided with an inner concave surface so as to increase the width of the air gap in the corresponding area of the inner concave surface; the width of the air gap characterizes the size of the air gap along the radial direction of the rotor.
2. The high-speed motor of claim 1, wherein the rotor comprises:
a rotating shaft;
the magnetic body is sleeved on the rotating shaft, and the inner concave surface is arranged on the outer wall of the magnetic body.
3. The high-speed motor of claim 2, wherein the inner concave surface comprises a first sub-concave surface and a second sub-concave surface, the first sub-concave surface and the second sub-concave surface being symmetrically disposed about a first predetermined plane; wherein the first preset plane surface is marked on one plane of the axis of the rotating shaft.
4. A high speed motor as recited in claim 3, wherein said first sub-concave surface includes a first edge and a second edge, said first edge and said second edge each being parallel to an axis of said shaft;
The second concave surface comprises a third side line and a fourth side line, and the third side line and the fourth side line are parallel to the axis of the rotating shaft;
Wherein the first and third edges are collinear; the second edge line is collinear with the fourth edge line.
5. The high speed motor of claim 4, wherein the first sub-concave surface further comprises a first concave bottom line, the first concave bottom line being parallel to the axis of the shaft, and the first concave bottom line being located between the first side line and the second side line;
A first transition concave surface is formed between the first side line and the first concave bottom line, and the distance between the first transition concave surface and the inner wall of the connecting sleeve is gradually increased along a first direction; wherein the first direction characterizes a direction of movement from the first edge line to the first concave bottom line along the first transition concave surface;
A second transition concave surface is formed between the second side line and the first concave bottom line, and the distance between the second transition concave surface and the inner wall of the connecting sleeve is gradually reduced along a second direction; wherein the second direction characterizes a direction of movement from the first concave bottom line to the second side line along the second transitional concave surface.
6. The high-speed motor of claim 5, wherein the first transition concave surface and the second transition concave surface are symmetrically disposed about a second predetermined plane; wherein the second preset plane surface is used for indicating the planes of the first concave bottom line and the axis of the rotating shaft; the second preset plane is perpendicular to the first preset plane.
7. The high speed motor of claim 4, wherein the second sub-concave surface further comprises a second concave bottom line, the second concave bottom line being parallel to the axis of the rotating shaft, and the second concave bottom line being located between the third side line and the fourth side line;
A third transition concave surface is formed between the third side line and the second concave bottom line, and the distance between the third transition concave surface and the inner wall of the connecting sleeve is gradually increased along a third direction; wherein the third direction characterizes a direction of movement from the third line along the third transitional concavity to the second concave bottom line;
A fourth transition concave surface is formed between the fourth side line and the second concave bottom line, and the distance between the fourth transition concave surface and the inner wall of the connecting sleeve is gradually reduced along a fourth direction; wherein the fourth direction characterizes a direction of movement from the second concave bottom line to the fourth side line along the fourth transitional concave surface.
8. The high-speed motor of claim 7, wherein the third transition concave surface and the fourth transition concave surface are symmetrically disposed about a third predetermined plane; wherein the third preset plane surface is used for indicating the planes of the second concave bottom line and the axis of the rotating shaft; the third preset plane is perpendicular to the first preset plane.
9. The high-speed motor according to any one of claims 1 to 8, wherein the concave inner surface includes an elliptical surface.
10. An air compressor, comprising:
a high speed motor as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322436269.1U CN220857731U (en) | 2023-09-07 | 2023-09-07 | High-speed motor and air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322436269.1U CN220857731U (en) | 2023-09-07 | 2023-09-07 | High-speed motor and air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220857731U true CN220857731U (en) | 2024-04-26 |
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ID=90782139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322436269.1U Active CN220857731U (en) | 2023-09-07 | 2023-09-07 | High-speed motor and air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220857731U (en) |
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2023
- 2023-09-07 CN CN202322436269.1U patent/CN220857731U/en active Active
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