Punching sheet assembly, motor and vehicle

Abstract

The utility model discloses a punching sheet assembly, a motor and a vehicle, and relates to the technical field of vehicle manufacturing, the punching sheet assembly comprises a stator punching sheet, the stator punching sheet is provided with a plurality of stator riveting parts, the stator riveting parts are used for riveting cooperation with adjacent stator punching sheets, the plurality of stator riveting parts are distributed at intervals along the circumferential direction of the stator punching sheet; a rotor moving cavity is formed in the middle of the rotor punching sheet and the stator punching sheet, the rotor punching sheet is located in the rotor moving cavity, the rotor punching sheet is provided with a rotor riveting part, and the rotor riveting part is used for being matched with the adjacent rotor punching sheet in a riveting mode. Wherein the stator riveting part is in a long strip shape, and the length direction of the stator riveting part intersects with the radial direction of the stator punching sheet. According to the punching sheet assembly provided by the embodiment of the utility model, the plurality of stator punching sheets can form the stator core, the plurality of rotor punching sheets can form the rotor core, and the rotor core can rotate relative to the stator core, so that the driving function of the motor can be realized, and the performance of the stator core and the motor can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to a punching sheet assembly, a motor with the punching sheet assembly and a vehicle with the motor. Background Art

[0002] The stator core and the rotor core are usually made of multiple thin silicon steel sheets stacked together, and when multiple thin silicon steel sheets are stacked, rivets are usually set on the thin silicon steel sheets. The rivets are used to connect two adjacent thin silicon steel sheets so that the multiple thin silicon steel sheets can form a stator core or a rotor core. However, the setting of the rivets usually affects the distribution of magnetic lines of force, and then affects the performance of the motor. There is room for improvement. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a punching sheet assembly, which can form a stator core and a rotor core, and can realize the driving function of the motor, and can reduce the obstruction of the stator riveted part to the magnetic field lines, thereby being conducive to improving the performance of the stator core and the motor.

[0004] According to the embodiment of the utility model, the punching sheet assembly includes: a stator punching sheet, the stator punching sheet is provided with a stator riveting part, the stator riveting part is used for riveting cooperation with adjacent stator punching sheets, the stator riveting part is multiple, and the multiple stator riveting parts are distributed at intervals along the circumference of the stator punching sheet; a rotor punching sheet, a rotor active cavity is formed in the middle part of the stator punching sheet, the rotor punching sheet is located in the rotor active cavity, the rotor punching sheet is provided with a rotor riveting part, and the rotor riveting part is used for riveting cooperation with adjacent rotor punching sheets; wherein the stator riveting part is constructed in a long strip shape, and the length direction of the stator riveting part intersects with the radial direction of the stator punching sheet.

[0005] According to the punching sheet assembly of the embodiment of the utility model, the connection between two adjacent stator punching sheets can be achieved through the stator riveting part, so that multiple stator punching sheets can form a stator core, and the connection between two adjacent rotor punching sheets can be achieved through the rotor riveting part, so that multiple rotor punching sheets can form a rotor core, and the rotor punching sheets are arranged in the rotor active cavity, so that the rotor punching sheets can rotate relative to the stator punching sheets, and then the rotor core can rotate relative to the stator core, which can realize the driving function of the motor, and the length direction of the stator riveting part is intersected with the radial direction of the stator punching sheet, which can reduce the obstruction of the stator riveting part to the magnetic lines of force, and thus can be beneficial to improving the performance of the stator core and the motor.

[0006] According to the punching sheet assembly of some embodiments of the utility model, the stator punching sheet is provided with a winding wire slot, and the winding wire slot is multiple and the multiple winding wire slots are distributed at intervals along the circumferential direction of the stator punching sheet; wherein, along the radial direction of the stator punching sheet, the stator riveting part is located on the outside of the winding wire slot.

[0007] According to the punching sheet assembly of some embodiments of the present invention, the extension length of the stator riveted portion is L1, and in the radial direction along the stator punching sheet, the distance between the stator riveted portion and the winding slot is L2, and satisfies: L2≥L1.

[0008] According to the punching sheet assembly of some embodiments of the present invention, in the radial projection of the stator punching sheet, the stator riveting portion is located between two adjacent winding slots.

[0009] According to the punching sheet assembly of some embodiments of the present invention, the extension length of the stator riveted portion is L1, and in the radial direction of the stator punching sheet, the distance between the stator riveted portion and the outer circle of the stator punching sheet is L3, and satisfies: L3≥L1.

[0010] According to the punching sheet assembly of some embodiments of the utility model, the center distance between two adjacent stator riveted parts is L c , the outer radius of the stator punching sheet is R, and satisfies: .

[0011] According to the punching sheet assembly of some embodiments of the present invention, the length direction of the stator riveted portion is perpendicular to the radial direction of the stator punching sheet.

[0012] According to the punching sheet assembly of some embodiments of the present invention, there are multiple rotor rivet parts, and the multiple rotor rivet parts are distributed at intervals along the circumference of the rotor punching sheet. The rotor rivet parts are constructed in the shape of long strips, and the length direction of the rotor rivet parts intersects with the circumference of the rotor punching sheet.

[0013] According to the punching sheet assembly of some embodiments of the present invention, the length direction of the rotor riveted part is perpendicular to the length direction of the stator riveted part; and / or the length direction of the rotor riveted part is along the radial direction of the rotor punching sheet.

[0014] According to the punching sheet assembly of some embodiments of the utility model, the rotor punching sheet is provided with magnet mounting grooves, and the magnet mounting grooves are multiple groups. The multiple groups of magnet mounting grooves are distributed at intervals along the circumference of the rotor punching sheet, and the rotor riveting part is provided between two adjacent groups of magnet mounting grooves.

[0015] According to the punching sheet assembly of some embodiments of the present invention, the minimum spacing between two adjacent groups of the magnet mounting grooves is L4, the width of the rotor riveted part is W2, the minimum spacing between the rotor riveted part and an adjacent group of the magnet mounting grooves is L5, and satisfies: L5≥(L4-W2) / 2.

[0016] According to the punching sheet assembly of some embodiments of the utility model, each group of the magnet mounting grooves includes a plurality of pairs of magnet mounting grooves, and the plurality of pairs of the magnet mounting grooves are distributed at intervals along the radial direction of the rotor punching sheet, and the two magnet mounting grooves of each pair are distributed in a V-shape.

[0017] According to the punching sheet assembly of some embodiments of the present invention, the rotor punching sheet is also provided with a weight-reducing hole, and the weight-reducing holes are multiple and distributed at intervals along the circumference of the rotor punching sheet, and the multiple weight-reducing holes correspond one-to-one to the multiple rotor riveting parts.

[0018] According to the punching sheet assembly of some embodiments of the present invention, along the radial direction of the rotor punching sheet, each of the weight-reducing holes is distributed opposite to the corresponding rotor riveting portion.

[0019] According to the punching sheet assembly of some embodiments of the present invention, the distance between the weight-reducing hole and the corresponding rotor riveting part is L6, the extension length of the rotor riveting part is L7, and the following condition is satisfied: L6≥L7.

[0020] According to the punching sheet assembly of some embodiments of the present invention, the stator riveted part has an extension length of L1 and a width of W1, and satisfies: 3W1≤L1≤5W1; and / or, the rotor riveted part has an extension length of L7 and a width of W2, and satisfies: 3W2≤L7≤5W2.

[0021] According to some embodiments of the punching sheet assembly of the present invention, there are multiple stator punching sheets, and the multiple stator punching sheets are distributed in an overlapping manner along the thickness direction, the stator riveting portion of one of the two adjacent stator punching sheets is formed with a stator riveting hole, and the other is formed with a stator riveting protrusion, and the stator riveting hole is riveted to the stator riveting protrusion; and / or, there are multiple rotor punching sheets, and the multiple rotor punching sheets are distributed in an overlapping manner along the thickness direction, the rotor riveting portion of one of the two adjacent rotor punching sheets is formed with a rotor riveting hole, and the rotor riveting portion of the other is formed with a rotor riveting protrusion, and the rotor riveting hole is riveted to the rotor riveting protrusion.

[0022] The utility model also provides a motor.

[0023] The motor according to the embodiment of the utility model comprises the punching sheet assembly described in any one of the above embodiments.

[0024] The utility model also provides a vehicle.

[0025] A vehicle according to an embodiment of the utility model includes the motor described in the above embodiment.

[0026] The advantages of the vehicle, the motor and the punching sheet assembly described above compared to the prior art are the same and will not be elaborated here.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 It is a structural schematic diagram of a punching sheet assembly according to an embodiment of the utility model;

[0030] Figure 2 It is a partial schematic diagram of a punching sheet assembly according to an embodiment of the utility model.

[0031] Reference numerals:

[0032] Stator punching sheet 100, rotor punching sheet 200, punching sheet assembly 300,

[0033] Stator riveted part 101, winding slot 102, rotor active cavity 103,

[0034] Rotor riveted portion 201 , magnet mounting groove 202 , and weight reduction hole 203 . DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Reference below Figure 1-Figure 2 Description: According to the punching sheet assembly 300 of the embodiment of the utility model, a plurality of stator punching sheets 100 can form a stator core, a plurality of rotor punching sheets 200 can form a rotor core, and the rotor core can rotate relative to the stator core, thereby realizing the driving function of the motor and reducing the obstruction of the stator riveted part 101 to the magnetic lines of force, thereby being beneficial to improving the performance of the stator core and the motor.

[0039] like Figure 1-Figure 2 As shown, a punching sheet assembly 300 according to an embodiment of the present invention includes: a stator punching sheet 100 and a rotor punching sheet 200 .

[0040] The stator punching 100 is provided with a stator riveting part 101, which is used for riveting with an adjacent stator punching 100. There are multiple stator riveting parts 101, and the multiple stator riveting parts 101 are distributed at intervals along the circumference of the stator punching 100; a rotor active cavity 103 is formed in the middle of the stator punching 100, and the rotor punching 200 is located in the rotor active cavity 103. The rotor punching 200 is provided with a rotor riveting part 201, which is used for riveting with an adjacent rotor punching 200; wherein the stator riveting part 101 is constructed in a long strip shape, and the length direction of the stator riveting part 101 intersects with the radial direction of the stator punching 100.

[0041] Specifically, the stator punching sheets 100 are used to form a stator core, that is, the stator core can be formed by stacking a plurality of stator punching sheets 100, and when the stator core is formed by a plurality of stator punching sheets 100, two adjacent stator punching sheets 100 need to be connected to improve the mechanical strength of the stator core, and a continuous magnetic circuit can be formed to improve the performance of the stator core, which can further help improve the performance of the motor.

[0042] Among them, a stator riveting part 101 is provided on the stator punching sheet 100, and the stator riveting part 101 is used to realize the connection between two adjacent stator punching sheets 100, and the stator riveting part 101 is riveted with the adjacent stator punching sheet 100, that is, when connecting two adjacent stator punching sheets 100, the stator riveting part 101 can be connected with the corresponding stator riveting part 101 on the adjacent stator punching sheet 100 by riveting, so as to realize the connection between the two adjacent stator punching sheets 100, and then realize the connection between multiple stator punching sheets 100, so that multiple stator punching sheets 100 can form a stator core. And the stator riveting part 101 on one of the two adjacent stator punching sheets 100 can be formed with a riveting groove, and the stator riveting part 101 on the other can be formed with a riveting protrusion, and the riveting matching method is simple and reliable.

[0043] Furthermore, there are multiple stator rivet parts 101, that is, the number of stator rivet parts 101 can be two, three or more, so that the connection between two adjacent stator punchings 100 can be achieved through multiple stator rivet parts 101 at the same time, which can improve the connection reliability between two adjacent stator punchings 100, and the multiple stator rivet parts 101 are distributed at intervals along the circumference of the stator punchings 100, that is, the multiple stator rivet parts 101 are evenly distributed along the circumference of the stator punchings 100, so that there is a certain distance between every two adjacent stator rivet parts 101, so that two adjacent stator punchings 100 can be connected at multiple positions at the same time through multiple stator rivet parts 101, which can improve the connection stability between two adjacent stator punchings 100.

[0044] In addition, the stator riveted portion 101 is constructed into a long strip shape so that the stator riveted portion 101 has a certain length, which can increase the fitting length between two adjacent stator punchings 100 and generate sufficient friction force at the connection between two adjacent stator punchings 100, thereby achieving a reliable connection between two adjacent stator punchings 100. Moreover, the length direction of the stator riveted portion 101 intersects with the radial direction of the stator punching 100, that is, the length direction of the stator riveted portion 101 can form a certain angle with the radial direction of the stator punching 100, that is, the angle between the length direction of the stator riveted portion 101 and the radial direction of the stator punching 100 can be 70°, 80° or 90°, etc., thereby making the length direction of the stator riveted portion 101 as parallel to the direction of the magnetic force lines as much as possible to reduce the obstruction of the stator riveted portion 101 to the magnetic force lines, thereby helping to improve the performance of the stator core and the performance of the motor.

[0045] It should be noted that, in actual design, the stator riveted portion 101 may also be constructed in an oblong shape, an elliptical shape, etc., which can achieve a reliable connection between two adjacent stator punching sheets 100 .

[0046] Moreover, the rotor punching 200 is used to form a rotor core, that is, the rotor core can be formed by stacking multiple rotor punchings 200, and when the rotor core is formed by multiple rotor punchings 200, two adjacent rotor punchings 200 need to be connected to improve the mechanical strength of the rotor core, and a continuous magnetic circuit can be formed to improve the performance of the rotor core, which can help improve the performance of the motor. At the same time, a rotor active cavity 103 is formed in the middle of the stator punching 100, and the rotor active cavity 103 is used to provide a setting position for the rotor punching 200, that is, the rotor punching 200 can be set in the rotor active cavity 103, that is, the rotor punching 200 can be set on the radial inner side of the stator punching 100 to achieve the cooperation between the stator punching 100 and the rotor punching 200, and the rotor punching 200 can rotate relative to the stator punching 100 in the rotor active cavity 103, thereby realizing the rotation of the rotor core relative to the stator core, thereby realizing the driving function of the motor.

[0047] It should be noted that by arranging the rotor punching 200 on the radial inner side of the stator punching 100, the rotor core can be arranged inside the stator core. This arrangement can facilitate the heat dissipation of the stator winding, and the electromagnetic design and control strategy of the motor are relatively simple, and the motor can be an inner rotor motor.

[0048] In addition, a rotor riveting part 201 is provided on the rotor punching 200, and the rotor riveting part 201 is used to realize the connection between two adjacent rotor punchings 200, and the rotor riveting part 201 is riveted with the adjacent rotor punching 200, that is, when connecting two adjacent rotor punchings 200, the rotor riveting part 201 can be riveted with the corresponding rotor riveting part 201 on the adjacent rotor punching 200 to realize the connection between the two adjacent rotor punchings 200, and then the connection between multiple rotor punchings 200 can be realized, so that multiple rotor punchings 200 can form a rotor core. In addition, the rotor riveting part 201 on one of the two adjacent rotor punchings 200 can be formed with a riveting groove, and the rotor riveting part 201 on the other can be formed with a riveting protrusion, and the riveting matching method is simple and reliable.

[0049] According to the punching sheet assembly 300 of the embodiment of the utility model, the connection between two adjacent stator punching sheets 100 can be achieved through the stator riveting part 101, so that multiple stator punching sheets 100 can form a stator core, and the connection between two adjacent rotor punching sheets 200 can be achieved through the rotor riveting part 201, so that multiple rotor punching sheets 200 can form a rotor core, and the rotor punching sheets 200 are arranged in the rotor active cavity 103, so that the rotor punching sheets 200 can rotate relative to the stator punching sheets 100, and then the rotor core can rotate relative to the stator core, so as to realize the driving function of the motor, and the length direction of the stator riveting part 101 is intersected with the radial direction of the stator punching sheets 100, so that the obstruction of the stator riveting part 101 to the magnetic lines of force can be reduced, which can be beneficial to improving the performance of the stator core and the motor.

[0050] In some embodiments, the stator sheet 100 is provided with a plurality of winding slots 102 , and the plurality of winding slots 102 are distributed at intervals along the circumference of the stator sheet 100 ; wherein, along the radial direction of the stator sheet 100 , the stator riveted portion 101 is located on the outside of the winding slots 102 .

[0051] Specifically, a winding slot 102 is provided on the stator punching sheet 100, and the winding slot 102 is used to provide a precise installation position for the stator winding, that is, the stator winding can be embedded in the winding slot 102 to ensure that the stator winding can remain stable during the operation of the motor and will not move or be damaged due to vibration or centrifugal force. The winding slot 102 can support and protect the stator winding to avoid the stator winding from contacting other components and causing wear and failure.

[0052] Furthermore, there are multiple winding slots 102, that is, the number of winding slots 102 can be two, three or more, so that the stator winding can be protected by multiple winding slots 102 at the same time, which can improve the reliability of protecting the stator winding, and the multiple winding slots 102 are distributed at intervals along the circumference of the stator punching sheet 100, that is, the multiple winding slots 102 are evenly distributed along the circumference of the stator punching sheet 100, so that there is a certain distance between every two winding slots 102, so that the stator winding can be supported at multiple positions at the same time by multiple winding slots 102, which can improve the stability of supporting the stator winding, and can help reduce the number of winding slots 102 and reduce the difficulty of processing.

[0053] Among them, along the radial direction of the stator punching sheet 100, the stator riveted portion 101 is located on the outside of the winding slot 102, that is, when two adjacent stator punching sheets 100 are connected by the stator riveted portion 101, the stator winding can be located on the inner side of the stator riveted portion 101, so that the stator riveted portion 101 can block the stator winding from the outside of the stator winding to prevent the stator winding from moving to the outside of the stator punching sheet 100 under the action of centrifugal force.

[0054] In some embodiments, the extension length of the stator riveted portion 101 is L1, and in the radial direction of the stator punching sheet 100, the distance between the stator riveted portion 101 and the winding slot 102 is L2, and the following condition is satisfied: L2 ≥ L1.

[0055] Specifically, the stator riveted portion 101 is used to achieve the connection between two adjacent stator punching sheets 100, and the extended length of the stator riveted portion 101 is L1, that is, the stator riveted portion 101 has a certain length, which can increase the matching length between the two adjacent stator punching sheets 100, and thus can help improve the reliability of connecting the two adjacent stator punching sheets 100 through the stator riveted portion 101, and in the radial direction along the stator punching sheet 100, the spacing between the stator riveted portion 101 and the winding slot 102 is L2, that is, the stator riveted portion 101 and the winding slot 102 have a certain distance, and L2 is not less than L1, that is, the distance between the stator riveted portion 101 and the winding slot 102 is not less than the extended length of the stator riveted portion 101, which can help reduce the influence of the stator riveted portion 101 on the electromagnetic properties of the stator punching sheet 100, and thus can help improve the performance of the stator core and the motor.

[0056] It should be noted that the extension length of the stator rivet portion 101 refers to the projection length of the stator rivet portion 101 in the circumferential direction of the stator punching sheet 100 .

[0057] In some embodiments, in the radial projection of the stator sheet 100 , the stator rivet portion 101 is located between two adjacent winding slots 102 .

[0058] Specifically, in the radial direction of the stator punching sheet 100, the stator riveted portion 101 is located on the outside of the winding slot 102, so that the stator riveted portion 101 can block the stator winding from the outside of the stator winding to prevent the stator winding from moving to the outside of the stator punching sheet 100 under the action of centrifugal force. At the same time, in the radial projection along the stator punching sheet 100, the stator riveted portion 101 is located between two adjacent winding slots 102, so that the stator riveted portion 101 can block the stator winding arranged in two adjacent winding slots 102 from between the two adjacent winding slots 102 at the same time, which can help reduce the number of stator riveted portions 101, and can make each stator riveted portion 101 far away from the two adjacent winding slots 102, so as to minimize the influence of the stator riveted portion 101 on the electromagnetic properties of the stator punching sheet 100, thereby helping to improve the performance of the stator core and the motor.

[0059] It should be noted that, Figure 1-Figure 2 As shown, in the radial projection along the stator punching sheet 100, the stator rivet portion 101 is arranged between two adjacent winding slots 102, but the stator rivet portion 101 is not arranged between every two adjacent winding slots 102, which can help reduce the number of stator rivet portions 101, and further help reduce the influence of the stator rivet portions 101 on the electromagnetic properties of the stator punching sheet 100.

[0060] In some embodiments, the extension length of the stator rivet portion 101 is L1, and in the radial direction of the stator punching sheet 100, the distance between the stator rivet portion 101 and the outer circle of the stator punching sheet 100 is L3, and the following condition is satisfied: L3 ≥ L1.

[0061] Specifically, the stator rivet portion 101 is used to realize the connection between two adjacent stator punching sheets 100, and the extension length of the stator rivet portion 101 is L1, that is, the stator rivet portion 101 has a certain length, which can increase the matching length between the two adjacent stator punching sheets 100, and thus can help improve the reliability of connecting the two adjacent stator punching sheets 100 through the stator rivet portion 101, and in the radial direction of the stator punching sheet 100, the distance between the stator rivet portion 101 and the outer circle of the stator punching sheet 100 is L3, that is, the stator There is a certain distance between the stator riveted part 101 and the outer circle of the stator punching 100, and L3 is not less than L1, that is, the distance between the stator riveted part 101 and the outer circle of the stator punching 100 is not less than the extension length of the stator riveted part 101, which can help reduce the influence of the stator riveted part 101 on the electromagnetic properties of the stator punching 100, and further help improve the performance of the stator core and the motor, and avoid the distance between the stator riveted part 101 and the outer circle of the stator punching 100 being too close, resulting in the local strength of the stator punching 100 being too low.

[0062] In some embodiments, the center distance between two adjacent stator riveted parts 101 is Lc , the outer radius of the stator punching sheet 100 is R, and satisfies: .

[0063] Specifically, there are multiple stator rivet parts 101, and the multiple stator rivet parts 101 are spaced apart along the circumference of the stator punching sheet 100. Two adjacent stator punching sheets 100 can be connected at multiple positions at the same time by the multiple spaced apart stator rivet parts 101, which can improve the connection reliability and connection stability between the two adjacent stator punching sheets 100. In addition, the multiple stator rivet parts 101 can be evenly distributed along the circumference of the stator punching sheet 100, and the center distance between the two adjacent stator rivet parts 101 can be set to L c , and set the outer radius of the sub-punch 100 to R, so that L c The relationship between R satisfies: , that is, L c It can be R / 3, R / 2 or 2R / 3, etc., to avoid the center distance between two adjacent stator riveted parts 101 being too large or too small.

[0064] When L c When L is too large, that is, the center distance between two adjacent stator riveted parts 101 is too large, the reliability of the stator riveted parts 101 blocking the stator winding is reduced, and the number of stator riveted parts 101 is too small, resulting in reduced connection reliability between two adjacent stator punchings 100. c If it is too small, that is, the center distance between two adjacent stator riveted parts 101 is too small, the stator riveted parts 101 will have a greater impact on the electromagnetic performance of the stator punching sheet 100, and the number of stator riveted parts 101 will be too large, which is not conducive to reducing the installation cost.

[0065] In some embodiments, the length direction of the stator rivet portion 101 is perpendicular to the radial direction of the stator punching sheet 100 .

[0066] Specifically, the length direction of the stator riveted part 101 intersects with the radial direction of the stator punching 100, that is, the length direction of the stator riveted part 101 can form a certain angle with the radial direction of the stator punching 100 to reduce the obstruction of the stator riveted part 101 to the magnetic lines of force, which can be beneficial to improve the performance of the stator core and the performance of the motor, and the length direction of the stator riveted part 101 is perpendicular to the radial direction of the stator punching 100, that is, the angle between the length direction of the stator riveted part 101 and the radial direction of the stator punching 100 is 90°, that is, the length direction of the stator riveted part 101 can be along the circumferential direction of the stator punching 100 or form a smaller angle with the circumferential direction to reduce the obstruction of the stator riveted part 101 to the magnetic lines of force as much as possible, thereby effectively improving the performance of the stator core and the motor.

[0067] It should be noted that when the stator riveted portion 101 is constructed in an irregular shape, the longer side of the stator riveted portion 101 can be arranged along the circumference of the stator punching sheet 100 to minimize the obstruction of the stator riveted portion 101 to the magnetic lines of force.

[0068] In some embodiments, there are multiple rotor rivet parts 201 , which are spaced apart along the circumference of the rotor punching 200 . The rotor rivet parts 201 are configured as long strips, and the length direction of the rotor rivet parts 201 intersects with the circumference of the rotor punching 200 .

[0069] Specifically, there are multiple rotor riveting parts 201, that is, the number of rotor riveting parts 201 can be two, three or more, so that the connection between two adjacent rotor punchings 200 can be achieved through multiple rotor riveting parts 201 at the same time, which can improve the connection reliability between two adjacent rotor punchings 200, and the multiple rotor riveting parts 201 are distributed at intervals along the circumference of the rotor punching 200, that is, the multiple rotor riveting parts 201 are evenly distributed along the circumference of the rotor punching 200, so that there is a certain distance between every two adjacent rotor riveting parts 201, so that two adjacent rotor punchings 200 can be connected at multiple positions at the same time through multiple rotor riveting parts 201, which can improve the connection stability between two adjacent rotor punchings 200.

[0070] Furthermore, the rotor riveted portion 201 is constructed into a long strip shape so that the rotor riveted portion 201 has a certain length, which can increase the fitting length between two adjacent rotor punchings 200 and generate sufficient friction force at the connection between the two adjacent rotor punchings 200, thereby realizing a reliable connection between the two adjacent rotor punchings 200. Moreover, the length direction of the rotor riveted portion 201 intersects with the circumferential direction of the rotor punching 200, that is, the length direction of the rotor riveted portion 201 can form a certain angle with the circumferential direction of the rotor punching 200, that is, the angle between the length direction of the rotor riveted portion 201 and the circumferential direction of the rotor punching 200 can be 70°, 80° or 90°, etc., thereby making the length direction of the rotor riveted portion 201 as parallel to the direction of the magnetic force lines as much as possible, so as to reduce the obstruction of the rotor riveted portion 201 to the magnetic force lines, thereby being beneficial to improving the performance of the rotor core and the performance of the motor.

[0071] It should be noted that, in actual design, the rotor riveted portion 201 may also be configured as an oblong, elliptical, etc., which can achieve a reliable connection between two adjacent rotor punchings 200 .

[0072] In some embodiments, the length direction of the rotor riveted portion 201 is perpendicular to the length direction of the stator riveted portion 101 ; and / or, the length direction of the rotor riveted portion 201 is along the radial direction of the rotor punching 200 .

[0073] Specifically, the length direction of the rotor riveted portion 201 intersects with the circumferential direction of the rotor punching 200, that is, the length direction of the rotor riveted portion 201 can form a certain angle with the circumferential direction of the rotor punching 200, and the rotor punching 200 is located on the radial inner side of the stator punching 100, that is, the rotor punching 200 and the stator punching 100 are coaxially arranged, and the length direction of the stator riveted portion 101 is perpendicular to the radial direction of the stator punching 100, that is, the length direction of the stator riveted portion 101 can be along the stator punching 100. 00, that is, along the circumferential direction of the rotor punching 200, so that the length direction of the rotor riveted part 201 is perpendicular to the length direction of the stator riveted part 101, that is, the length direction of the rotor riveted part 201 is perpendicular to the circumferential direction of the rotor punching 200, that is, the length direction of the rotor riveted part 201 is along the radial direction of the rotor punching 200 or forms a small angle with the radial direction, so as to minimize the obstruction of the rotor riveted part 201 to the magnetic lines of force, which can be beneficial to improve the performance of the rotor core and the motor.

[0074] In other embodiments, the length direction of the rotor riveted portion 201 is arranged along the radial direction of the rotor punching 200, so as to minimize the obstruction of the rotor riveted portion 201 to the magnetic lines of force, thereby facilitating the improvement of the performance of the rotor core and the motor.

[0075] It should be noted that when the rotor riveted portion 201 is configured as an irregular shape, a longer side of the rotor riveted portion 201 may be arranged along the radial direction of the rotor punching 200 .

[0076] In some embodiments, the rotor punching 200 is provided with magnet mounting grooves 202 , and the magnet mounting grooves 202 are multiple groups, and the multiple groups of magnet mounting grooves 202 are distributed at intervals along the circumference of the rotor punching 200 , and a rotor riveting part 201 is provided between two adjacent groups of magnet mounting grooves 202 .

[0077] Specifically, a magnet mounting groove 202 is provided on the rotor punching 200, and the magnet mounting groove 202 is used to provide a precise installation position for the magnet, that is, the magnet can be embedded in the magnet mounting groove 202 to ensure that the magnet can remain stable during the operation of the motor and will not move or be damaged due to vibration or centrifugal force. The magnet mounting groove 202 is a plurality of groups, that is, the number of magnet mounting grooves 202 can be two groups, three groups or more groups, so that multiple groups of magnet mounting grooves 202 can be used to install the magnet, which can increase the number of magnets, and further help to improve the torque output and running stability of the motor.

[0078] Furthermore, by distributing the multiple groups of magnet mounting grooves 202 at intervals along the circumference of the rotor punching 200, the multiple groups of magnet mounting grooves 202 can be evenly distributed along the circumference of the rotor punching 200, and the magnets in the multiple groups of magnet mounting grooves 202 can be evenly distributed along the circumference of the rotor punching 200, so that there is a certain distance between every two adjacent groups of magnets, which can help avoid the problems of magnetic field distortion and misalignment, and can help reduce unnecessary energy loss, thereby improving the operating efficiency and stability of the motor.

[0079] Furthermore, a rotor rivet portion 201 is provided between two adjacent groups of magnet mounting grooves 202, that is, a rotor rivet portion 201 is provided between every two adjacent groups of magnet mounting grooves 202, so as to increase the number of rotor rivet portions 201 provided, thereby facilitating the improvement of the connection reliability between two adjacent rotor punchings 200, and each rotor rivet portion 201 can be provided between two adjacent groups of magnet mounting grooves 202, so that each rotor rivet portion 201 is far away from the two adjacent groups of magnet mounting grooves 202, that is, far away from the two adjacent groups of magnets, so as to minimize the influence of the rotor rivet portion 201 on the electromagnetic performance of the rotor punching 200, thereby facilitating the improvement of the performance of the rotor core and the motor.

[0080] In some embodiments, the minimum distance between two adjacent groups of magnet mounting slots 202 is L4, the width of the rotor riveted portion 201 is W2, the minimum distance between the rotor riveted portion 201 and an adjacent group of magnet mounting slots 202 is L5, and satisfies: L5≥(L4-W2) / 2.

[0081] Specifically, the plurality of groups of magnet mounting grooves 202 are spaced apart along the circumferential direction of the rotor sheet 200, and the minimum spacing between two adjacent groups of magnet mounting grooves 202 can be set to L4, that is, the shortest distance that can be achieved between two adjacent groups of magnet mounting grooves 202 is L4, the width of the rotor riveted portion 201 is W2, and the rotor riveted portion 201 extends along the radial direction of the rotor sheet 200, that is, the extension length of the rotor riveted portion 201 along the circumferential direction of the rotor sheet 200 is W2, the minimum spacing between the rotor riveted portion 201 and an adjacent group of magnet mounting grooves 202 is L5, and The rotor riveted portion 201 is arranged between two adjacent groups of magnet mounting grooves 202, that is, the shortest distance that can be achieved between the rotor riveted portion 201 and the two adjacent groups of magnet mounting grooves 202 is L5, so that the relationship between L4, L5 and W2 satisfies: L5 ≥ (L4-W2) / 2, and the minimum distance between the rotor riveted portion 201 and the magnet mounting groove 202 can be limited to avoid the distance between the rotor riveted portion 201 and the magnet mounting groove 202 being too small, thereby avoiding the influence of the rotor riveted portion 201 on the electromagnetic performance of the rotor punching 200.

[0082] In some embodiments, each group of magnet mounting slots 202 includes multiple pairs of magnet mounting slots 202 , and the multiple pairs of magnet mounting slots 202 are distributed along the radial direction of the rotor punching 200 at intervals, and the two magnet mounting slots 202 in each pair are distributed in a V-shape.

[0083] Specifically, the rotor sheet 200 is provided with a plurality of groups of magnet mounting grooves 202, the magnet mounting grooves 202 are used to mount magnets, and each group of magnet mounting grooves 202 includes a plurality of pairs of magnet mounting grooves 202, and each pair of magnet mounting grooves 202 includes two magnet mounting grooves 202, that is, a plurality of magnet mounting grooves 202 are provided on the rotor sheet 200, and the plurality of groups of magnet mounting grooves 202 are distributed at intervals along the circumferential direction of the rotor sheet 200, and the plurality of pairs of magnet mounting grooves 202 are distributed at intervals along the radial direction of the rotor sheet 200, that is, the plurality of magnet mounting grooves 202 are respectively distributed along the radial direction of the rotor sheet 200. Radial and circumferential distribution, that is, on the rotor punching 200, multiple magnet mounting grooves 202 are respectively set along the radial and circumferential directions of the rotor punching 200, so as to effectively increase the number of magnet mounting grooves 202, that is, to increase the number of magnets, which can be beneficial to improve the torque output and running stability of the motor, and can make the multiple magnet mounting grooves 202 evenly spaced and distributed along the radial and circumferential directions of the rotor punching 200, which can help avoid the problems of magnetic field distortion and misalignment, and can help reduce unnecessary energy loss, thereby improving the running efficiency and stability of the motor.

[0084] In such Figure 1-Figure 2 In the illustrated embodiment, each group of magnet mounting slots 202 includes two pairs of magnet mounting slots 202, that is, the plurality of magnet mounting slots 202 can be arranged into two layers along the radial direction of the rotor punching 200 to further increase the number of magnet mounting slots 202, and the two layers of magnet mounting slots 202 are distributed at intervals along the radial direction of the rotor punching 200, which can further avoid the problems of magnetic field distortion and misalignment, and can help reduce unnecessary energy loss.

[0085] Furthermore, by distributing the two magnet mounting grooves 202 of each pair in a V shape, each group of magnet mounting grooves 202 can be distributed in a double V shape, and then the magnets arranged in each group of magnet mounting grooves 202 can be distributed in a double V shape, so as to adopt a substantially double V-shaped magnetic circuit structure, and a high salient pole ratio can be obtained by reasonably designing the angle of the V shape, which can help improve the performance of the motor.

[0086] It should be noted that, in actual design, the two pairs of magnet mounting grooves 202 in each group may be respectively distributed in a straight line and a V shape, or the two pairs of magnet mounting grooves 202 in each group may be respectively distributed in a U shape and a V shape, etc., and the rotor riveted portion 201 and the magnet mounting grooves 202 may be spaced apart and distributed to minimize the influence of the rotor riveted portion 201 on the electromagnetic properties of the rotor punching 200, and the distribution method of the two pairs of magnet mounting grooves 202 in each group may be flexibly set according to actual needs and space size.

[0087] In some embodiments, the rotor punching 200 is further provided with a plurality of weight-reducing holes 203 , and the plurality of weight-reducing holes 203 are distributed at intervals along the circumference of the rotor punching 200 , and the plurality of weight-reducing holes 203 correspond one-to-one to the plurality of rotor rivet parts 201 .

[0088] Specifically, the rotor punching 200 is provided with a weight-reducing hole 203, and the weight-reducing hole 203 is used to reduce the weight of the rotor punching 200, and then reduce the weight of the rotor core, so as to increase the rotation speed of the rotor core, thereby improving the efficiency and performance of the motor, and there are multiple weight-reducing holes 203, that is, the number of weight-reducing holes 203 can be two, three or more, so that the weight of the rotor punching 200 can be reduced together through multiple weight-reducing holes 203, and then the weight of the rotor core can be effectively reduced, that is, the rotation speed of the rotor core can be effectively increased, and at the same time, the multiple weight-reducing holes 203 are distributed at intervals along the circumference of the rotor punching 200, that is, the multiple weight-reducing holes 203 are evenly distributed along the circumference of the rotor punching 200, and a certain distance is provided between every two adjacent weight-reducing holes 203, so as to avoid that the local strength of the rotor punching 200 is too low.

[0089] Among them, by corresponding the multiple weight-reducing holes 203 to the multiple rotor riveting parts 201 one by one, the number of the weight-reducing holes 203 can be the same as the number of the rotor riveting parts 201, that is, for each weight-reducing hole 203, there is a rotor riveting part 201 corresponding thereto, that is, the weight-reducing holes 203 can be set between every two adjacent groups of magnet mounting slots 202, thereby effectively reducing the weight of the rotor core.

[0090] In some embodiments, along the radial direction of the rotor punching sheet 200 , each lightening hole 203 is directly opposite to the corresponding rotor riveting portion 201 .

[0091] Specifically, in the radial direction of the rotor punching 200, each weight-reducing hole 203 is distributed opposite to the corresponding rotor rivet part 201, that is, each weight-reducing hole 203 and the corresponding rotor rivet part 201 are distributed in the radial direction of the rotor punching 200, that is, the weight-reducing hole 203 can be set between two adjacent groups of magnet mounting grooves 202, so that the weight-reducing hole 203 and the two adjacent groups of magnet mounting grooves 202 have a certain distance, which can avoid the local strength of the rotor punching 200 being too low, and the weight-reducing hole 203 and the corresponding rotor rivet part 201 can be distributed in the radial direction of the rotor punching 200 at intervals, so as to further avoid the local strength of the rotor punching 200 being too low, so as to ensure the structural strength and working reliability of the rotor punching 200.

[0092] In some embodiments, the distance between the weight-reducing hole 203 and the corresponding rotor riveted portion 201 is L6, the extension length of the rotor riveted portion 201 is L7, and the following condition is satisfied: L6 ≥ L7.

[0093] Specifically, along the radial direction of the rotor punching 200, each weight-reducing hole 203 is directly opposite to the corresponding rotor rivet part 201, and the spacing between the weight-reducing hole 203 and the corresponding rotor rivet part 201 can be set to L6, that is, the distance between the weight-reducing hole 203 and the corresponding rotor rivet part 201 along the radial direction of the rotor punching 200 is L6, the extension length of the rotor rivet part 201 is L7, and the rotor rivet part 201 extends along the radial direction of the rotor punching 200, that is, the extension length of the rotor rivet part 201 along the radial direction of the rotor punching 200 is L7, so that the relationship between L6 and L7 satisfies: L6≥L7, that is, the distance between the rotor rivet part 201 and the weight-reducing hole 203 is not less than the extension length of the rotor rivet part 201, so as to avoid the distance between the rotor rivet part 201 and the weight-reducing hole 203 being too close, resulting in too low local strength of the rotor punching 200.

[0094] It should be noted that the extended length of the rotor riveted portion 201 refers to the projected length of the rotor riveted portion 201 in the radial direction of the rotor punching 200 .

[0095] In some embodiments, the stator rivet portion 101 has an extension length of L1 and a width of W1, and satisfies: 3W1≤L1≤5W1; and / or the rotor rivet portion 201 has an extension length of L7 and a width of W2, and satisfies: 3W2≤L7≤5W2.

[0096] Specifically, the stator riveted portion 101 extends along the circumferential direction of the stator punching 100, and the extension length of the stator riveted portion 101 can be set to L1 and the width to W1, that is, the extension length of the stator riveted portion 101 along the circumferential direction of the stator punching 100 is L1, and the extension length along the radial direction of the stator punching 100 is W1, and the relationship between L1 and W1 satisfies: 3W1≤L1≤5W1, that is, L1 can be 3W1, 4W1 or 5W1, etc., which can avoid the extension length of the stator riveted portion 101 being too long or too short. If it is too long, the stator riveted portion 101 will have an enhanced blocking effect on the magnetic lines of force, which is not conducive to improving the performance of the stator core and the motor. If it is too short, the connection reliability between two adjacent stator punchings 100 will be reduced.

[0097] In addition, the rotor riveted portion 201 extends radially along the rotor punching 200, and the extension length of the rotor riveted portion 201 can be set to L7 and the width to W2, that is, the extension length of the rotor riveted portion 201 along the radial direction of the rotor punching 200 is L7, and the extension length along the circumferential direction of the rotor punching 200 is W2, and the relationship between L7 and W2 satisfies: 3W2≤L7≤5W2, that is, L7 can be 3W2, 4W2 or 5W2, etc., which can avoid the extension length of the rotor riveted portion 201 being too long or too short. If it is too long, the blocking effect of the rotor riveted portion 201 on the magnetic lines of force will be enhanced, which is not conducive to improving the performance of the rotor core and the motor. If it is too short, the connection reliability between two adjacent rotor punchings 200 will be reduced.

[0098] It should be noted that the shapes of the stator riveted portion 101 and the rotor riveted portion 201 and the relationship between the extended length and width are not limited to those described in this embodiment, and can be flexibly set according to specific needs and space size.

[0099] In some embodiments, there are multiple stator punchings 100, and the multiple stator punchings 100 are distributed in an overlapping manner along the thickness direction, the stator rivet portion 101 of one of two adjacent stator punchings 100 is formed with a stator rivet hole and the other is formed with a stator rivet protrusion, and the stator rivet hole is riveted to the stator rivet protrusion; and / or, there are multiple rotor punchings 200, and the multiple rotor punchings 200 are distributed in an overlapping manner along the thickness direction, the rotor rivet portion 201 of one of two adjacent rotor punchings 200 is formed with a rotor rivet hole and the other is formed with a rotor rivet protrusion, and the rotor rivet hole is riveted to the rotor rivet protrusion.

[0100] Specifically, there are multiple stator punching sheets 100, that is, the number of stator punching sheets 100 can be two, three or more, and the multiple stator punching sheets 100 are stacked in the thickness direction, that is, the multiple stator punching sheets 100 are sequentially arranged in the thickness direction, so that the multiple stator punching sheets 100 can form a stator core together, and the stator rivet portion 101 on one of the two adjacent stator punching sheets 100 can be formed with a stator rivet hole and the stator rivet portion 101 on the other one can be formed with a stator rivet convex. The stator rivet holes can be riveted together with the stator rivet protrusions, so that when two adjacent stator punching sheets 100 are connected, the two adjacent stator punching sheets 100 are first stacked, and the stator rivet parts 101 on the two adjacent stator punching sheets 100 are aligned, and then the stator rivet protrusions are extended into the stator rivet holes, so that the connection between the two adjacent stator punching sheets 100 can be achieved, and then a plurality of stator punching sheets 100 can be connected in sequence, so that the plurality of stator punching sheets 100 can form a stator core.

[0101] It should be noted that the stator rivet portion 101 on one of the two adjacent stator punching sheets 100 may be formed with a stator rivet hole and the stator rivet portion 101 on the other one may be formed with a stator rivet protrusion, and the stator rivet hole may be a through hole or a blind hole. When the stator rivet hole is a blind hole, the stator rivet hole may be groove-shaped, and the connection between the two adjacent stator punching sheets 100 can be achieved, thereby forming a stator core.

[0102] At the same time, there are multiple rotor punchings 200, that is, the number of rotor punchings 200 can be two, three or more, and the multiple rotor punchings 200 can be stacked in the thickness direction, that is, the multiple rotor punchings 200 can be arranged in sequence in the thickness direction, so that the multiple rotor punchings 200 can jointly form a rotor core, and the rotor rivet portion 201 on one of the two adjacent rotor punchings 200 can be formed with a rotor rivet hole and the rotor rivet portion 201 on the other can be formed with a rotor rivet protrusion, and the rotor rivet hole can be riveted with the rotor rivet protrusion, so that when connecting two adjacent rotor punchings 200, the two adjacent rotor punchings 200 can be stacked first, and the rotor rivet portions 201 on the two adjacent rotor punchings 200 can be aligned, and then the rotor rivet protrusion can be extended into the rotor rivet hole, so that the connection between the two adjacent rotor punchings 200 can be achieved, and then the multiple rotor punchings 200 can be connected in sequence, so that the multiple rotor punchings 200 can form a rotor core.

[0103] It should be noted that the rotor rivet portion 201 on one of the two adjacent rotor punchings 200 may be formed with a rotor rivet hole and the rotor rivet portion 201 on the other may be formed with a rotor rivet protrusion, and the rotor rivet hole may be a through hole or a blind hole, and when the rotor rivet hole is a blind hole, the rotor rivet hole may be groove-shaped, and both of them can realize the connection between the two adjacent rotor punchings 200, and then form a rotor core.

[0104] The utility model also provides a motor.

[0105] According to the motor of the embodiment of the utility model, it includes a punching sheet assembly 300 of any one of the above-mentioned embodiments, and the punching sheet assembly 300 includes a stator punching sheet 100 and a rotor punching sheet 200, and a plurality of stator punching sheets 100 can form a stator core, and a plurality of rotor punching sheets 200 can form a rotor core, that is, a plurality of punching sheet assemblies 300 can form the stator core and the rotor core of the motor, and the rotor punching sheet 200 is arranged on the radial inner side of the stator punching sheet 100, that is, the rotor core can be arranged inside the stator core to achieve the coordination between the stator core and the rotor core, and the rotor punching sheet 200 can rotate relative to the stator punching sheet 100, that is, the rotor core can rotate relative to the stator core, so as to realize the driving function of the motor.

[0106] Moreover, a stator riveting portion 101 is provided on the stator punching 100, and a rotor riveting portion 201 is provided on the rotor punching 200. The stator riveting portion 101 is used to connect two adjacent stator punchings 100, and the rotor riveting portion 201 is used to connect two adjacent rotor punchings 200, thereby improving the mechanical strength of the stator core and the rotor core, and a magnet mounting groove 202 is provided on the rotor punching 200, and the magnet mounting groove 202 is used to install the magnet, that is, the motor can It is a permanent magnet motor, and the stator riveted part 101 and the winding slot 102 are spaced apart, and the length direction of the stator riveted part 101 intersects with the radial direction of the stator punching 100, which can reduce the obstruction of the stator riveted part 101 to the magnetic lines of force; the rotor riveted part 201 and the magnet mounting slot 202 are spaced apart, and the length direction of the rotor riveted part 201 intersects with the circumferential direction of the rotor punching 200, which can reduce the obstruction of the rotor riveted part 201 to the magnetic lines of force, thereby effectively improving the performance of the motor.

[0107] The utility model also provides a vehicle.

[0108] According to the vehicle of the embodiment of the utility model, including the motor of the above embodiment, a stator core and a rotor core can be formed by a plurality of punching sheet assemblies 300, and the rotor core can be rotated relative to the stator core to realize the driving function of the motor, and the stator riveted part 101 and the rotor riveted part 201 are spaced apart and distributed from other components on the punching sheet assembly 300, and the length direction of the stator riveted part 101 is intersected with the radial direction of the stator punching sheet 100, and the length direction of the rotor riveted part 201 is intersected with the circumferential direction of the rotor punching sheet 200, which can reduce the obstruction of the stator riveted part 101 and the rotor riveted part 201 to the magnetic lines of force, thereby improving the performance of the motor, and by arranging such a motor on a vehicle, it is beneficial to improve the acceleration performance, climbing ability and driving experience of the vehicle.

[0109] In the description of this specification, the description with reference to the terms "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 the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0110] 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 spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A punching assembly, characterized in that: include: A stator punching sheet (100), wherein the stator punching sheet (100) is provided with a stator riveting portion (101), the stator riveting portion (101) being used for riveting with an adjacent stator punching sheet (100), the stator riveting portion (101) being multiple, and the multiple stator riveting portions (101) being distributed at intervals along the circumference of the stator punching sheet (100); A rotor punching (200), wherein a rotor active cavity (103) is formed in the middle of the stator punching (100), the rotor punching (200) is located in the rotor active cavity (103), and the rotor punching (200) is provided with a rotor riveting portion (201), and the rotor riveting portion (201) is used for riveting with an adjacent rotor punching (200); The stator riveted portion (101) is constructed in a long strip shape, and the length direction of the stator riveted portion (101) intersects with the radial direction of the stator punching sheet (100).

2. The punching sheet assembly according to claim 1, characterized in that: The stator punching sheet (100) is provided with a winding wire slot (102), the winding wire slot (102) is multiple, and the multiple winding wire slots (102) are distributed at intervals along the circumference of the stator punching sheet (100); Wherein, along the radial direction of the stator punching sheet (100), the stator riveted portion (101) is located outside the winding slot (102).

3. The punching sheet assembly according to claim 2, characterized in that: The extension length of the stator riveted portion (101) is L1, and in the radial direction of the stator punching sheet (100), the distance between the stator riveted portion (101) and the winding wire slot (102) is L2, and the following condition is satisfied: L2≥L1.

4. The punching sheet assembly according to claim 2, characterized in that: In a radial projection of the stator punching sheet (100), the stator riveted portion (101) is located between two adjacent winding slots (102).

5. The punching sheet assembly according to claim 1, characterized in that: The extension length of the stator riveted portion (101) is L1, and in the radial direction of the stator punching sheet (100), the distance between the stator riveted portion (101) and the outer circle of the stator punching sheet (100) is L3, and the condition is satisfied: L3≥L1.

6. The punching sheet assembly according to claim 1, characterized in that: The center distance between two adjacent stator riveted parts (101) is L c , the outer radius of the stator punching sheet (100) is R, and satisfies: .

7. The punching sheet assembly according to claim 1, characterized in that: The length direction of the stator riveted portion (101) is perpendicular to the radial direction of the stator punching sheet (100).

8. The punching sheet assembly according to any one of claims 1 to 7, characterized in that: There are a plurality of rotor riveted parts (201), the plurality of rotor riveted parts (201) are spaced apart along the circumference of the rotor punching sheet (200), the rotor riveted parts (201) are configured as long strips, and the length direction of the rotor riveted parts (201) intersects with the circumference of the rotor punching sheet (200).

9. The punching sheet assembly according to claim 8, characterized in that: The length direction of the rotor riveted portion (201) is perpendicular to the length direction of the stator riveted portion (101); And / or, the length direction of the rotor riveting portion (201) is along the radial direction of the rotor punching sheet (200).

10. The punching sheet assembly according to claim 8, characterized in that: The rotor punching sheet (200) is provided with magnet mounting grooves (202), the magnet mounting grooves (202) are multiple groups, the multiple groups of magnet mounting grooves (202) are distributed at intervals along the circumference of the rotor punching sheet (200), and the rotor riveting portion (201) is provided between two adjacent groups of magnet mounting grooves (202).

11. The punching sheet assembly according to claim 10, characterized in that: The minimum spacing between two adjacent groups of magnet mounting grooves (202) is L4, the width of the rotor riveted portion (201) is W2, and the minimum spacing between the rotor riveted portion (201) and an adjacent group of magnet mounting grooves (202) is L5, and the following condition is satisfied: L5≥(L4-W2) / 2.

12. The punching sheet assembly according to claim 10, characterized in that: Each group of the magnet mounting grooves (202) comprises a plurality of pairs of magnet mounting grooves (202), the plurality of pairs of the magnet mounting grooves (202) being distributed at intervals along the radial direction of the rotor punching sheet (200), and the two magnet mounting grooves (202) of each pair being distributed in a V-shape.

13. The punching sheet assembly according to claim 8, characterized in that: The rotor punching sheet (200) is further provided with a weight-reducing hole (203), there are a plurality of the weight-reducing holes (203), and the plurality of the weight-reducing holes (203) are distributed at intervals along the circumference of the rotor punching sheet (200), and the plurality of the weight-reducing holes (203) correspond one-to-one to the plurality of the rotor riveting portions (201).

14. The punching sheet assembly according to claim 13, characterized in that: Along the radial direction of the rotor punching sheet (200), each of the weight-reducing holes (203) is distributed opposite to the corresponding rotor riveting portion (201).

15. The punching sheet assembly according to claim 13, characterized in that: The distance between the weight-reducing hole (203) and the corresponding rotor riveting portion (201) is L6, the extension length of the rotor riveting portion (201) is L7, and the following condition is satisfied: L6≥L7.

16. The punching sheet assembly according to claim 8, characterized in that: The stator riveting portion (101) has an extension length of L1 and a width of W1, and satisfies: 3W1≤L1≤5W1; And / or, the rotor riveting portion (201) has an extension length of L7 and a width of W2, and satisfies: 3W2≤L7≤5W2.

17. The punching sheet assembly according to claim 8, characterized in that: There are a plurality of stator punching sheets (100), and the plurality of stator punching sheets (100) are stacked and distributed in a thickness direction, a stator riveting hole is formed on the stator riveting portion (101) of one of two adjacent stator punching sheets (100), and a stator riveting protrusion is formed on the other, and the stator riveting hole is riveted to the stator riveting protrusion; And / or, there are a plurality of rotor punching sheets (200), and the plurality of rotor punching sheets (200) are stacked and distributed in a thickness direction, a rotor riveting hole is formed on the rotor riveting portion (201) of one of two adjacent rotor punching sheets (200), and a rotor riveting protrusion is formed on the rotor riveting portion (201), and the rotor riveting hole is riveted to the rotor riveting protrusion.

18. A motor, characterized in that: A punching sheet assembly comprising any one of claims 1-17.

19. A vehicle, characterized in that: Includes the motor as claimed in claim 18.

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