Stator assembly, electric machine and vehicle

Abstract

This utility model relates to the field of electric motors and discloses a stator assembly, a motor, and a carrier. The stator assembly includes: a stator core, which is a ring-shaped structure with stator windings wound around its inner side, and a limiting portion on its outer surface; a conductive element connected to the stator windings; and a first positioning block connected to the conductive element, the first positioning block having a limiting engagement portion that contacts the limiting portion, and the limiting portion, in the circumferential direction of the stator core, limits the limiting engagement portion. Through the engagement of the limiting engagement portion and the limiting portion, the position of the conductive element is precisely defined, ensuring its relatively fixed position in the circumferential direction of the stator core. This guarantees its positional accuracy, avoids misalignment with the terminal block interface due to difficulty in ensuring positional accuracy, and reduces the assembly difficulty of the conductive element.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to stator assemblies, motors, and carriers. Background Technology

[0002] In electric motors, high-voltage connecting wires are mainly used to reliably connect the U / V / W three phases of the terminal block to the corresponding output terminals of the stator winding, providing stable power for the efficient operation of the motor. The assembly accuracy of these wires directly affects the reliability of the electrical connection and the stability of the motor operation.

[0003] In actual connection process, it is usually necessary to first connect the high voltage connection wire to the stator winding output terminal, and then connect the high voltage connection wire to the terminal block interface.

[0004] However, due to installation errors or process deviations, the positional accuracy of the high-voltage connection line is often difficult to guarantee, resulting in misalignment between the high-voltage connection line and the terminal block, which increases the assembly difficulty. Utility Model Content

[0005] In view of this, the present invention provides a stator assembly, a motor and a carrier to solve or improve the problem of misalignment between the high voltage connection line and the terminal block interface due to poor positional accuracy of the high voltage connection line.

[0006] In a first aspect, this utility model provides a stator assembly, comprising:

[0007] The stator core is configured as a ring structure and has a stator winding wound on its inner side. The outer surface of the stator core is provided with a limiting part.

[0008] A conductive element, wherein the conductive element is connected to the stator winding;

[0009] A first positioning block is connected to the conductive component. The first positioning block is provided with a limiting engagement part. The limiting engagement part contacts the limiting part, and the limiting part limits the limiting engagement part in the circumferential direction of the stator core.

[0010] In one optional embodiment, one of the limiting portion and the limiting mating portion includes a protrusion, and the other includes a groove into which the protrusion can be engaged, and the limiting portion and the limiting mating portion are interlocked through the protrusion and the groove.

[0011] In one alternative embodiment, the sidewall of the groove is formed with a limiting structure, which is connected to the protrusion.

[0012] In one optional embodiment, the limiting part is disposed on the outer circumferential surface of the stator core, and the first positioning block is further provided with a positioning surface, which abuts against the end face of the stator core, so that the stator core limits the positioning surface in the axial direction;

[0013] Alternatively, the limiting part is disposed on the end face of the stator core, and the first positioning block is further provided with a positioning surface, which abuts against the outer circumferential surface of the stator core, so that the stator core limits the positioning surface in the radial direction.

[0014] In one alternative implementation, the first positioning block includes a body and a protrusion;

[0015] The main body is connected to the conductive component. The main body is disposed on the outer circumferential surface of the stator core, and the protrusion is provided on the surface of the main body near the stator core. The protrusion is disposed on the end face of the stator core. One of the main body and the protrusion is provided with the limiting engagement part, and the other constitutes the positioning surface.

[0016] In one optional embodiment, the number of conductive elements is three, and the three conductive elements are respectively connected to the corresponding outgoing terminals of the stator winding, and all three conductive elements are connected to the first positioning block.

[0017] And / or, the conductive element includes a conductive bus and a terminal connected to the conductive bus, the conductive bus being connected to the stator winding, and the terminal being connected to the first positioning block;

[0018] And / or, the first positioning block is provided with a through-hole, and the conductive element passes through the first mounting hole.

[0019] In one optional embodiment, the number of conductive elements is three, and the three conductive elements are respectively connected to the corresponding outgoing terminals of the stator winding.

[0020] The stator assembly further includes a second positioning block, which has at least two spaced-apart second mounting holes, each of which passes through the second positioning block and is fitted with a corresponding conductive element.

[0021] In one optional embodiment, the second positioning block is further provided with a drain hole, which is disposed between two adjacent second mounting holes and passes through the second positioning block, wherein the axis of the drain hole is opposite to the axis of the second mounting hole.

[0022] Secondly, this utility model also provides an electric motor, including the stator assembly as described above.

[0023] Thirdly, this utility model also provides a carrier, including the stator assembly as described above or the motor as described above.

[0024] The stator assembly provided by this utility model precisely limits the position of the conductive component through the cooperation of the limiting fitting part and the limiting part, so that the position of the conductive component in the circumferential direction of the stator core is relatively fixed, thereby ensuring its positional accuracy and avoiding the problem of misalignment with the terminal block interface due to the difficulty in ensuring positional accuracy, and reducing the assembly difficulty of the conductive component.

[0025] The motor and carrier provided by this utility model include all the advantages of the stator assembly mentioned above, since they incorporate the stator assembly provided by this utility model. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of a stator assembly provided in an embodiment of this utility model;

[0028] Figure 2 This is a schematic diagram of the structure of a conductive component provided in an embodiment of the present utility model;

[0029] Figure 3 for Figure 2 Other angle views of the conductive component shown;

[0030] Figure 4 A schematic diagram of the structure of the wiring terminal provided in the embodiment of this utility model;

[0031] Figure 5 A schematic diagram of the structure of the conductive bus provided in the embodiment of this utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the second positioning block provided in an embodiment of the present utility model;

[0033] Figure 7 A schematic diagram of the structure of the stator core and stator winding in accordance with an embodiment of this utility model;

[0034] Figure 8 A schematic diagram of the stator core provided in an embodiment of this utility model;

[0035] Figure 9A schematic diagram of a groove structure provided in an embodiment of this utility model;

[0036] Figure 10 This is a schematic diagram of another groove structure provided in an embodiment of the present utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Stator core; 101. Limiting part; 1011. Groove; 1011a. Limiting structure; 102. Outer circumferential surface; 103. End face; 2. Stator winding; 3. Conductive component; 301. Conductive busbar; 302. Terminal block; 4. First positioning block; 401. Limiting mating part; 4011. Protrusion; 402. Positioning surface; 403. First mounting hole; 404. Main body; 405. Protrusion; 5. Second positioning block; 501. Second mounting hole; 502. Drain hole. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] In actual connection process, it is usually necessary to first connect the high voltage connection wire to the stator winding output terminal, and then connect the high voltage connection wire to the terminal block interface.

[0041] However, due to installation errors or process deviations, the positional accuracy of the high-voltage connection line is often difficult to guarantee, resulting in misalignment between the high-voltage connection line and the terminal block, which increases the assembly difficulty.

[0042] To address or improve the problem of misalignment between the high-voltage connection line and the terminal block interface due to poor positioning accuracy of the high-voltage connection line, this utility model provides a stator assembly, a motor, and a carrier.

[0043] The following is combined with Figures 1 to 10 This describes the stator assembly provided in the embodiments of the present invention.

[0044] Specifically, the stator assembly includes a stator core 1, a conductive element 3, and a first positioning block 4.

[0045] The stator core 1 is configured as a ring structure, and a stator winding 2 is provided on the inner side of the stator core 1. For example, the inner wall of the positioning core is provided with multiple grooves arranged circumferentially, and the stator winding 2 is embedded in the grooves. Furthermore, a limiting part 101 is provided on the outer surface of the stator core 1. For example, the limiting part 101 can be provided on the outer circumferential surface 102 or the end face 103 of the stator core 1.

[0046] The conductive element 3 is connected to the stator winding 2. Optionally, the conductive element 3 is welded to the output terminal of any one of the U, V, or W phases of the stator winding 2. Further, the conductive element 3 is also used to connect to the interface of any one of the U, V, or W phases of the terminal block. Optionally, the conductive element 3 can be configured as a conductive busbar 301, thereby improving the rigidity of the conductive element 3, reducing its swaying under vibration conditions, and preventing cracking at the connection between the conductive element 3 and the stator winding 2. For example, the conductive busbar 301 can be a metal busbar such as a copper busbar.

[0047] The first positioning block 4 is connected to the conductive component 3. For example, the first positioning block 4 can be injection molded onto the conductive component 3, that is, the two are set as an injection molded integral structure. Of course, in other embodiments, the first positioning block 4 can also be connected to the conductive component 3 by bonding, snapping or screwing.

[0048] Furthermore, a limiting engagement part 401 is provided on the first positioning block 4. The limiting engagement part 401 contacts the limiting part 101, and the limiting part 101 limits the limiting engagement part 401 in the circumferential direction of the stator core 1.

[0049] In this embodiment, the position of the conductive element 3 is precisely defined by the limiting engagement of the limiting engagement part 401 and the limiting engagement part 101, so that the position of the conductive element 3 in the circumferential direction of the stator core 1 is relatively fixed, thereby ensuring its positional accuracy, avoiding the problem of misalignment with the terminal block interface due to the difficulty in ensuring positional accuracy, and reducing the assembly difficulty of the conductive element 3.

[0050] In some embodiments provided by this utility model, one of the limiting part 101 and the limiting mating part 401 includes a protrusion 4011, and the other includes a groove 1011 into which the protrusion 4011 can be engaged. The limiting part 101 and the limiting mating part 401 are interlocked through the protrusion 4011 and the groove 1011. (Reference) Figure 4 and Figure 8 The illustration shows an example where the limiting part 101 includes a groove 1011 and the limiting mating part 401 includes a protrusion 4011. It can be understood that the reverse is also possible.

[0051] In this embodiment, the protrusion 4011 can be precisely inserted into the groove 1011 to achieve a tight fit, thereby accurately limiting the first positioning block 4 in the circumferential direction of the stator core 1, ensuring the positional accuracy of the conductive component 3, effectively avoiding positional deviation caused by installation errors or process deviations, and thus preventing misalignment between the conductive component 3 and the terminal block interface, improving the accuracy of assembly.

[0052] Furthermore, the structures of the protrusions 4011 and the grooves 1011 are relatively simple and easy to process and manufacture. For example, whether the grooves 1011 are set on the stator core 1 or the protrusions 4011 are set on the first positioning block 4, no complex processes or special equipment are required, which can reduce production costs.

[0053] refer to Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, in some embodiments of this utility model, the limiting part 101 is disposed on the outer circumferential surface 102 of the stator core 1. The first positioning block 4 is also provided with a positioning surface 402, which abuts against the end face 103 of the stator core 1, so that the stator core 1 limits the positioning surface 402 in the axial direction.

[0054] In this embodiment, the circumferential limiting prevents the first positioning block 4 from rotating around the circumference of the stator core 1, ensuring the positional accuracy of the conductive element 3 in the circumferential direction and making the connection position between the conductive element 3 and the terminal block accurate. The axial limiting prevents the first positioning block 4 from moving in the axial direction of the stator core 1, ensuring that the conductive element 3 is fixed in the axial direction.

[0055] The positioning method in this embodiment can better constrain the position of the first positioning block 4, thereby fixing the conductive component 3 more accurately, improving the assembly accuracy of the stator assembly, and helping to improve the overall performance of the motor.

[0056] Furthermore, through the limiting in two directions, the first positioning block 4 is more firmly fixed to the stator core 1. During motor operation, it can effectively resist various external forces, such as vibration, reducing the possibility of displacement or shaking of the first positioning block 4 and its connected conductive parts 3, thereby improving the structural stability of the entire stator assembly and reducing the risk of failure caused by loose components.

[0057] Optionally, refer to Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, taking the limiting part 101 as a groove 1011 and the limiting mating part 401 as a protrusion 4011 as an example, the form of the limiting part 101 as a protrusion 4011 can be analyzed in the same way.

[0058] Specifically, the groove 1011 is provided on the outer circumferential surface 102 of the stator core 1. The groove 1011 extends along the axial direction of the stator core 1 and penetrates the end face 103 of the groove 1011, so that the protrusion 4011 can be inserted into the groove 1011 from the end face 103 of the stator core 1. At the same time, after the protrusion 4011 is inserted into the groove 1011, the positioning surface 402 can abut against the end face 103.

[0059] In this embodiment, the protrusion 4011 can be directly inserted into the groove 1011 from the end face 103 of the stator core 1. This assembly method is simple and direct, and the assembler can easily align the protrusion 4011 on the first positioning block 4 with the groove 1011 entrance on the end face 103 of the stator core 1 for installation, which reduces the assembly difficulty and improves the assembly efficiency.

[0060] The groove 1011 extends along the axial direction of the stator core 1. When the protrusion 4011 is inserted into the position, it can not only achieve precise positioning in the circumferential direction through the cooperation of the protrusion and the groove, thus restricting the movement of the first positioning block 4 in the circumferential direction, but also accurately limit the axial direction by abutting the positioning surface 402 against the end face 103 of the stator core 1. This ensures the accurate position of the first positioning block 4 in three-dimensional space, thereby ensuring the installation position accuracy of the conductive component 3 and improving the assembly quality of the motor.

[0061] It is understood that the limiting part 101 is not limited to being disposed on the outer circumferential surface 102 of the stator core 1. For example, in some embodiments not shown provided in this utility model, the limiting part 101 is disposed on the end face 103 of the stator core 1, and the first positioning block 4 is also provided with a positioning surface 402, which abuts against the outer circumferential surface 102 of the stator core 1, so that the stator core 1 limits the positioning surface 402 in the radial direction. For example, the positioning surface 402 can be an arc surface, so as to better fit with the outer circumferential surface 102.

[0062] In this embodiment, a positioning method different from setting the limiting part 101 on the outer circumferential surface 102 of the stator core 1 is provided, which increases the flexibility of the design. Under different motor design requirements or space layout constraints, a more suitable positioning method can be selected according to the actual situation to optimize the structure of the stator assembly.

[0063] Furthermore, the circumferential limiting function prevents the first positioning block 4 from rotating around the circumference of the stator core 1, ensuring the circumferential positioning accuracy of the conductive component 3 and the accurate connection position between the conductive component 3 and the terminal block. The radial limiting function prevents the first positioning block 4 from moving radially in the stator core 1, ensuring the radial position of the conductive component 3 is fixed. This positioning method better constrains the position of the first positioning block 4, thereby more precisely fixing the conductive component 3, improving the assembly accuracy of the stator assembly, and contributing to improved overall motor performance.

[0064] Furthermore, through the limiting in two directions, the first positioning block 4 is more firmly fixed to the stator core 1. During motor operation, it can effectively resist various external forces, such as vibration, reducing the possibility of displacement or shaking of the first positioning block 4 and its connected conductive parts 3, thereby improving the structural stability of the entire stator assembly and reducing the risk of failure caused by loose components.

[0065] Optionally, taking the limiting part 101 as a groove 1011 and the limiting mating part 401 as a protrusion 4011 as an example, the form of the limiting part 101 being a protrusion 4011 can be analyzed in the same way.

[0066] Specifically, the groove 1011 is provided on the end face 103 of the stator core 1. The groove 1011 extends radially along the stator core 1 and penetrates the outer circumferential surface 102 of the groove 1011, so that the protrusion 4011 can be inserted from the outer circumferential surface 102 of the stator core 1 into the groove 1011. At the same time, after the protrusion 4011 is inserted into the groove 1011, the positioning surface 402 can abut against the outer circumferential surface 102 of the stator core 1.

[0067] refer to Figure 4 As shown, in some embodiments provided by this utility model, the first positioning block 4 includes a body 404 and a protrusion 405.

[0068] The main body 404 is connected to the conductive component 3, for example, the two are designed as an injection-molded integrated structure.

[0069] Further, refer to Figure 1 As shown, the main body 404 is disposed on the outer circumferential surface 102 of the stator core 1, and the main body 404 has a protrusion 405 on the surface near the stator core 1. The protrusion 405 is disposed on the end face 103 of the stator core 1.

[0070] One of the main body 404 and the protrusion 405 is provided with a limiting engagement part 401, and the other constitutes a positioning surface 402. Specifically, one of the surfaces of the main body 404 near the stator core 1 and the surface of the protrusion 405 near the stator core 1 is provided with a limiting engagement part 401, and the other constitutes a positioning surface 402.

[0071] For example Figure 4 The example shown is that the surface of the main body 404 near the stator core 1 is provided with a limiting mating part 401, and the protrusion 405 near the surface of the stator core 1 forms a positioning surface 402. Of course, the reverse is also possible.

[0072] In this embodiment, the main body 404 and the protrusion 405 are respectively provided with a limiting engagement part 401 and a positioning surface 402, which can realize the precise installation and positioning of the first positioning block 4 on the stator core 1. For example, the limiting engagement part 401 engages with the limiting part 101 on the stator core 1 to determine the circumferential position of the first positioning block 4. The positioning surface 402 abuts against the corresponding surface of the stator core 1 to determine the axial or radial position, thereby ensuring the accuracy of the installation position of the conductive component 3 and improving the performance of the motor.

[0073] refer to Figure 9 and Figure 10 As shown, in some embodiments provided by this utility model, the sidewall of the groove 1011 forms a limiting structure 1011a, which is connected to the protrusion 4011 and limits the protrusion 4011 in the depth direction of the groove 1011. That is, the limiting structure 1011a is used to restrict the protrusion 4011 from coming out of the groove 1011 along the depth direction of the groove 1011.

[0074] For example, as described above, if the groove 1011 is provided on the outer circumferential surface 102 of the stator core 1, then the limiting structure 1011a can limit the protrusion 4011 in the radial direction of the stator core 1. If the groove 1011 is provided on the end face 103 of the positioning core, then the limiting structure 1011a can limit the protrusion 4011 in the axial direction of the stator core 1.

[0075] In this embodiment, the limiting structure 1011a can effectively restrict the protrusion 4011 from coming out along the depth direction of the groove 1011. Whether the limiting is in the radial or axial direction of the stator core 1, it can ensure that the fit between the protrusion 4011 and the groove 1011 is more stable, so that the connection between the first positioning block 4 and the stator core 1 can withstand greater external force and vibration during motor operation, and is less likely to loosen or separate, thereby improving the stability and reliability of the entire stator assembly.

[0076] Furthermore, by limiting the protrusion 4011 in the depth direction of the groove 1011, the position of the protrusion 4011 within the groove 1011 is further refined, thereby improving the positioning accuracy of the first positioning block 4 relative to the stator core 1. This helps to ensure the relative positional accuracy between the conductive element 3 and the stator winding 2 and other related components, which is beneficial to improving the performance of the motor and the reliability of the electrical connection.

[0077] refer to Figure 9 As shown, optionally, the groove 1011 is configured as a dovetail groove, that is, along the direction from the bottom of the groove to the opening of the groove, the two sidewalls of the groove 1011 are close to each other, so that the inclined sidewalls form a limiting structure 1011a. Correspondingly, the protrusion 4011 is configured as a dovetail block.

[0078] In this embodiment, the two inclined sidewalls of the dovetail groove make the groove opening narrow and the groove bottom wide. The dovetail block is adapted to it and forms a limit in the direction from the bottom of the groove to the groove opening after installation. This can effectively prevent the dovetail block from coming out of the dovetail groove. Even if subjected to large external forces or vibrations, the connection can be kept stable, ensuring a reliable connection between the first positioning block 4 and the stator core 1.

[0079] Of course, the groove 1011 is not limited to being a dovetail groove; for example, see reference. Figure 10 As shown, in some embodiments provided by this utility model, the groove 1011 is configured as a T-shaped groove, and correspondingly, the protrusion 4011 is configured as a T-shaped structure.

[0080] In this embodiment, after the T-shaped structure is embedded in the T-shaped groove, it can effectively prevent the protrusion 4011 from falling out of the groove 1011, making the connection between the first positioning block 4 and the stator core 1 more stable and able to withstand various forces and vibrations generated during motor operation.

[0081] In some embodiments provided by this utility model, the number of conductive elements 3 is three. The three conductive elements 3 are respectively connected to the corresponding outgoing terminals of the stator winding 2, that is, the three conductive elements 3 are respectively connected to the corresponding U, V, and W terminals of the stator winding 2. All three conductive elements 3 are connected to the first positioning block 4.

[0082] In this embodiment, all three conductive components 3 are connected to the first positioning block 4, forming an integral structure. During motor assembly, the three conductive components 3 can be connected to the first positioning block 4 first, and then the first positioning block 4 can be installed onto the stator core 1 as a whole. This facilitates operation and improves installation efficiency.

[0083] Furthermore, the first positioning block 4 fixes the three conductive components 3 together, increasing the overall stability of the conductive structure. For example, during motor operation, it can withstand various external forces such as electromagnetic force and mechanical vibration, and is less prone to loosening or displacement of the conductive components 3, ensuring the reliability of the electrical connection, reducing the risk of failure caused by poor contact of the conductive components 3, and improving the safety and stability of motor operation.

[0084] In some embodiments of this utility model, the first positioning block 4 is provided with a through first mounting hole 403, and the conductive element 3 passes through the first mounting hole 403. Optionally, the first positioning block 4 is provided with three spaced-apart first mounting holes 403, and each first mounting hole 403 is provided with a corresponding conductive element 3.

[0085] In this embodiment, the first mounting hole 403 provides a precise mounting position for the conductive element 3, ensuring that each conductive element 3 can be accurately installed in the predetermined position.

[0086] The conductive component 3 passes through the first mounting hole 403 and forms a tight fit with the first positioning block 4. This fit restricts the shaking and displacement of the conductive component 3 during motor operation, enhances the fixing effect of the conductive component 3, and improves the stability of the entire conductive structure. At the same time, the first positioning block 4 also provides a certain degree of support for the conductive component 3, reducing the risk of deformation or damage caused by the weight of the conductive component 3 itself or external forces.

[0087] In some embodiments provided by this utility model, the conductive element 3 includes a conductive busbar 301 and a terminal block 302.

[0088] The terminal block 302 is connected to the conductor bus 301, for example, by welding or by making it an integral structure. The conductor bus 301 is connected to the stator winding 2, and the terminal block 302 is connected to the first positioning block 4. The terminal block 302 is also used to connect to the terminal block.

[0089] In this embodiment, the busbar 301 typically has a large conductive cross-section and low resistance, enabling it to effectively transmit current, meeting the high current transmission requirements of the motor during operation, reducing line losses, and improving motor efficiency. The terminal block 302 provides a good electrical connection interface, facilitating connection with the terminal block and ensuring the stability and reliability of the entire electrical system.

[0090] In some embodiments provided by this utility model, the number of conductive elements 3 is three, and the three conductive elements 3 are respectively connected to the corresponding outgoing terminals of the stator winding 2. That is, the three conductive elements 3 are respectively connected to the corresponding outgoing terminals of the U, V, and W of the stator winding 2.

[0091] Furthermore, the stator assembly also includes a second positioning block 5, which has at least two spaced second mounting holes 501, each of which passes through the second positioning block 5 and is fitted with a corresponding conductive element 3.

[0092] In this embodiment, the second positioning block 5 can maintain a preset distance between the conductive components 3. For example, maintaining the distance between adjacent conductive components 3 can prevent electrical short circuits between the conductive components 3 due to excessively small distances. Especially during motor operation, the conductive components 3 may undergo certain displacement due to factors such as vibration and electromagnetic force. A suitable distance can ensure that even if the conductive components 3 undergo slight displacement, they will not come into contact with each other, thus ensuring the safe operation of the motor electrical system.

[0093] In some embodiments provided by this utility model, the second positioning block 5 is further provided with a drain hole 502. The drain hole 502 is disposed between two adjacent second mounting holes 501 and passes through the second positioning block 5. The axis of the drain hole 502 is not in the same plane as the axis of the second mounting hole 501.

[0094] In the coating and impregnation process, the paint needs to be evenly applied to components such as the stator assembly. Without the drain hole 502, paint may accumulate and form paint nodules in the area between two adjacent second mounting holes 501.

[0095] In this embodiment, the drain hole 502 allows excess paint to flow away through the drain hole 502, preventing paint from accumulating on the second positioning block 5, thereby effectively preventing the formation of paint nodules and ensuring that the insulating paint on the surface of the second positioning block 5 is uniform and flat, thus improving the quality of the coating and impregnation process.

[0096] This utility model embodiment also provides a motor.

[0097] Specifically, the motor includes the stator assembly described above.

[0098] It should be noted that the motor includes the stator assembly, and therefore includes all the advantages of the stator assembly mentioned above.

[0099] This utility model also provides a vehicle in its embodiments.

[0100] Specifically, the vehicle includes the stator assembly as described above or the motor as described above.

[0101] It should be noted that the vehicle includes the stator assembly, and therefore includes all the advantages of the stator assembly mentioned above.

[0102] Furthermore, the vehicles described in this application include, but are not limited to, vehicles, aircraft, or ships. Among them, vehicles include, but are not limited to, pure electric vehicles or hybrid vehicles.

[0103] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A stator assembly characterized by, include: Stator core (1), the stator core (1) is configured as a ring structure and a stator winding (2) is wound on the inner side, and a limiting part (101) is provided on the outer surface of the stator core (1); Conductive element (3), the conductive element (3) is connected to the stator winding (2); The first positioning block (4) is connected to the conductive element (3). The first positioning block (4) is provided with a limiting engagement part (401). The limiting engagement part (401) is in contact with the limiting part (101), and the limiting part (101) limits the limiting engagement part (401) in the circumferential direction of the stator core (1).

2. The stator assembly of claim 1, wherein, One of the limiting part (101) and the limiting mating part (401) includes a protrusion (4011), and the other includes a groove (1011) into which the protrusion (4011) can be inserted. The limiting part (101) and the limiting mating part (401) are interlocked through the protrusion (4011) and the groove (1011).

3. The stator assembly according to claim 2, characterized in that, The sidewall of the groove (1011) forms a limiting structure (1011a), which is connected to the protrusion (4011).

4. The stator assembly according to claim 1, characterized in that, The limiting part (101) is disposed on the outer circumferential surface (102) of the stator core (1), and the first positioning block (4) is also provided with a positioning surface (402). The positioning surface (402) abuts against the end face (103) of the stator core (1) so that the stator core (1) limits the positioning surface (402) in the axial direction. Alternatively, the limiting part (101) is disposed on the end face (103) of the stator core (1), and the first positioning block (4) is further provided with a positioning surface (402), the positioning surface (402) abutting against the outer circumferential surface (102) of the stator core (1), so that the stator core (1) limits the positioning surface (402) in the radial direction.

5. The stator assembly according to claim 4, characterized in that, The first positioning block (4) includes a main body (404) and a protrusion (405); The main body (404) is connected to the conductive element (3). The main body (404) is disposed on the outer circumferential surface (102) of the stator core (1). The main body (404) has a protrusion (405) on the surface of the stator core (1) near the surface of the stator core (1). The protrusion (405) is disposed on the end face of the stator core (1). One of the main body (404) and the protrusion (405) is provided with the limiting mating part (401), and the other constitutes the positioning surface (402).

6. The stator assembly according to any one of claims 1-5, characterized in that, The number of the conductive elements (3) is three, and the three conductive elements (3) are respectively connected to the corresponding outgoing terminals of the stator winding (2), and the three conductive elements (3) are all connected to the first positioning block (4); And / or, the conductive element (3) includes a conductive bus (301) and a terminal block (302) connected to the conductive bus (301), the conductive bus (301) being connected to the stator winding (2), and the terminal block (302) being connected to the first positioning block (4); And / or, the first positioning block (4) is provided with a through mounting hole (403), and the conductive element (3) passes through the first mounting hole (403).

7. The stator assembly according to any one of claims 1-5, characterized in that, The number of the conductive elements (3) is three, and the three conductive elements (3) are respectively connected to the corresponding outgoing terminals of the stator winding (2); The stator assembly further includes a second positioning block (5), which has at least two spaced second mounting holes (501), each of which passes through the second positioning block (5) and is fitted with a corresponding conductive element (3).

8. The stator assembly according to claim 7, characterized in that, The second positioning block (5) is also provided with a drain hole (502), which is located between two adjacent second mounting holes (501) and passes through the second positioning block (5). The axis of the drain hole (502) is not parallel to the axis of the second mounting hole (501).

9. An electric motor, characterized in that, Includes the stator assembly as described in any one of claims 1-8.

10. A vehicle, characterized in that, It includes the stator assembly as described in any one of claims 1-8 or the motor as described in claim 9.

Images