Isolation cover, motor and vehicle

Abstract

The present disclosure relates to a shielding cover, a motor, and a vehicle. The shielding cover is used to isolate the stator assembly and the rotor assembly of the motor. The shielding cover has an inner peripheral wall and a plurality of partition walls provided on the inner peripheral wall and arranged at intervals in the circumferential direction. The inner cavity of the inner peripheral wall is used to accommodate the rotor assembly, and a side cavity is formed between two adjacent partition walls. The side cavity is used to accommodate the stator assembly. The side surface of the partition wall has a support portion protruding toward the side cavity to support the stator assembly. The rotor assembly is installed in the inner cavity of the inner peripheral wall, and the stator assembly is installed in the corresponding side cavity, realizing the physical sealing isolation of the dry cavity and the oil cavity of the motor stator and rotor; the side surface of the partition wall is provided with a support portion to effectively support the stator assembly, sharing the force originally acting on the inner peripheral wall, ensuring the stability of the stator assembly in the side cavity, and improving the overall structural strength; the support portion can increase the connection strength between the shielding cover and the components of the stator assembly, and improve the stiffness of the entire stator assembly.

Description

Technical Field

[0001] The present disclosure relates to the technical field of motors, and particularly to an isolation cover, a motor, and a vehicle. Background Art

[0002] In a motor pump, the stator is usually cooled naturally or by water, and the rotor is lubricated by oil cooling. An isolation cover is required between the stator and the rotor for sealing isolation to achieve the dry-wet separation of the stator and the rotor. In related technologies, the structure of the isolation cover is single, and it cannot effectively support the stator, affecting the overall structural strength. Summary of the Invention

[0003] To overcome the problems existing in related technologies, the present disclosure provides an isolation cover, a motor, and a vehicle.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided an isolation cover for isolating a stator assembly and a rotor assembly of a motor. The isolation cover has an inner peripheral wall and a plurality of isolation walls disposed on the inner peripheral wall and spaced circumferentially. The inner cavity of the inner peripheral wall is used to accommodate the rotor assembly, and a side cavity is formed between adjacent two isolation walls for accommodating the stator assembly.

[0005] Wherein, a side surface of the isolation wall has a support portion protruding towards the side cavity to support the stator assembly.

[0006] Optionally, the stator assembly includes a plurality of stator core segments arranged in sequence circumferentially. Each stator core segment has a pole shoe. The isolation wall has a root portion located between adjacent two pole shoes. Along the radial direction of the isolation wall, the circumferential width of the root portion is equal.

[0007] Optionally, the support portions are multiple and arranged at intervals in the radial direction, and one of them is disposed close to the root portion.

[0008] Optionally, the stator assembly further includes an insulating bracket and a coil winding wound around the outer periphery of the insulating bracket. Each stator core segment is provided with the insulating bracket and the coil winding to form a stator core unit. The isolation wall is located between adjacent two stator core units.

[0009] The insulating bracket includes a skeleton body, an upper baffle, and a lower baffle disposed on the skeleton body. The coil winding is wound around the skeleton body and stopped between the upper baffle and the lower baffle.

[0010] Wherein, the support portion includes a first support portion capable of filling a first gap between the lower baffle of the insulating bracket and the pole shoe.

[0011] Optionally, the first support portion has a first support surface and a second support surface that form an angle with each other. The first support surface is shaped to match the pole shoe and extends at one end to the base portion, and the second support surface is for supporting the lower baffle of the insulating bracket.

[0012] Optionally, the support portion further includes a second support portion for filling a second gap between the lower baffle of the insulating bracket and the coil winding.

[0013] Optionally, the support portion further includes a third support portion for filling a third gap between the upper baffle of the insulating bracket and the coil winding.

[0014] Optionally, the first support portion, the second support portion, and the third support portion are respectively provided on two side surfaces of the partition wall.

[0015] Optionally, the third support portion is close to an end of the partition wall away from the inner peripheral wall, and a stop surface is formed between the third support portion and the end to limit the insulating bracket in the circumferential direction.

[0016] Optionally, the isolation cover has end walls at both ends. Openings for the lower baffle of the insulating bracket to extend into are provided on the end walls. The openings are a plurality of openings arranged in sequence along the circumferential direction, and the openings are radially close to the inner peripheral wall.

[0017] Optionally, support rings protruding axially outward are respectively provided at both ends of the isolation cover, and the support rings are coaxially arranged with the inner peripheral wall.

[0018] Optionally, the support ring and the isolation cover are of an integral structure.

[0019] According to a second aspect of the embodiments of the present disclosure, a motor is provided, including a stator assembly, a rotor assembly, and an isolation cover for isolating the stator assembly and the rotor assembly. The isolation cover is the above-mentioned isolation cover.

[0020] Optionally, the motor includes a housing, a first end cover, and a second end cover for enclosing the stator assembly and the rotor assembly in the housing. Potting glue is respectively filled in cavities between the first end cover and the stator assembly and between the second end cover and the stator assembly.

[0021] Optionally, support rings protruding axially outward are respectively provided at both ends of the isolation cover, and a sealing member is provided between the support ring and the corresponding end cover.

[0022] According to a third aspect of the embodiments of the present disclosure, a vehicle includes the above-mentioned motor.

[0023] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: In the isolation cover provided by the present disclosure, the rotor assembly can be installed in the inner cavity of the inner peripheral wall, and the stator assembly can be installed in the corresponding side cavity, realizing the physical sealed isolation of the dry cavity and the oil cavity of the motor stator and rotor; the side surface of the isolation wall is provided with a support portion, which can effectively support the stator assembly, share the force originally acting on the inner peripheral wall, ensure the stability of the stator assembly in the side cavity, and improve the overall structural strength; at the same time, the support portion can increase the connection strength between the isolation cover and the components of the stator assembly, and improve the stiffness of the entire stator assembly.

[0024] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure.

[0026] Figure 1 is a schematic structural diagram of an isolation cover shown according to an exemplary embodiment.

[0027] Figure 2 is a schematic structural diagram of an isolation cover shown according to another exemplary embodiment.

[0028] Figures 3 to 5 is a cross-sectional view of an isolation cover shown according to an exemplary embodiment.

[0029] Figure 6 and Figure 7 is a schematic diagram of the assembly of an isolation cover and a stator assembly shown according to an exemplary embodiment.

[0030] Figure 8 is a partial schematic diagram of a stator assembly in a motor shown according to an exemplary embodiment.

[0031] Figure 9 is a perspective view of a stator assembly in a motor shown according to an exemplary embodiment.

[0032] Figure 10 is a cross-sectional view of a stator assembly in a motor shown according to an exemplary embodiment.

[0033] Figures 11 to 13 is a schematic diagram of the assembly of a stator assembly in a motor shown according to an exemplary embodiment.

[0034] Figure 14 is a schematic structural diagram of a motor shown according to an exemplary embodiment.

[0035] Figure 15 It is a schematic structural diagram inside a motor shown according to an exemplary embodiment.

[0036] Figure 16 It is an exploded view of a motor shown according to an exemplary embodiment.

[0037] Figure 17 It is a cross-sectional view of a motor shown according to an exemplary embodiment.

[0038] Figure 18 It is a partially enlarged view of a motor shown according to an exemplary embodiment.

[0039] Explanation of reference numerals

[0040] 1 - Stator assembly; 10 - Single stator core; 101 - First gap; 102 - Second gap; 103 - Third gap; 11 - Stator core segment; 111 - Pole shoe; 12 - Coil winding; 13 - Insulation bracket; 130 - Avoidance cavity; 131 - Skeleton body; 132 - Upper baffle; 133 - Lower baffle; 2 - Rotor assembly; 20 - Rotating shaft; 21 - Bearing; 22 - Seal; 3 - Isolation cover; 31 - Inner peripheral wall; 310 - Inner cavity; 32 - Isolation wall; 33 - End wall; 320 - Side cavity; 321 - Support part; 3211 - First support part; 32111 - First support surface; 32112 - Second support surface; 3212 - Second support part; 3213 - Third support part; 3214 - Accommodation groove; 322 - Root part; 330 - Opening; 4 - Support ring; 51 - First end cover; 52 - Second end cover; 6 - Housing; 61 - Cavity. Detailed implementation manners

[0041] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0042] In the present disclosure, unless otherwise stated, the orientation terms such as "axial direction", "circumferential direction", and "radial direction" generally refer to those relative to the rotation axis of the motor provided by the present disclosure. "Inside and outside" can refer to the inside and outside of the corresponding component contour or its location inside or outside the environment according to the specific context. Additionally, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The terms "first", "second", etc. used in the present disclosure are used to distinguish one element from another and do not have sequentiality and importance.

[0043] To solve the technical problem in the related art that the structure of the isolation cover is single and cannot effectively support the stator, as Figures 1 to 5 shown, the present disclosure provides an isolation cover 3. The isolation cover 3 is used to isolate the stator assembly 1 and the rotor assembly 2 of the motor. The isolation cover 3 has an inner peripheral wall 31 and a plurality of isolation walls 32 arranged at intervals along the circumferential direction on the inner peripheral wall 31. The inner cavity 310 of the inner peripheral wall 31 is used to accommodate the rotor assembly 2, and a side cavity 320 is formed between two adjacent isolation walls 32. The side cavity 320 is used to accommodate the stator assembly 1. Wherein, the side surface of the isolation wall 32 has a support portion 321 protruding towards the side cavity 320 to support the stator assembly 1.

[0044] Here, it should be noted that the isolation cover 3 provided by the present disclosure can be made of non-metallic material, can be manufactured separately, and then press-fitted into the inner ring of the stator assembly 1 with an interference fit later. It can also form an integral structure with the stator assembly 1 during injection molding, that is, after fixing the components of the stator assembly 1, the injection liquid is poured. The injection liquid can completely fill the gaps between the components of the stator assembly 1. After forming and demolding, the isolation cover 3 and the stator assembly 1 are an integral structure. The structural stiffness of the entire stator assembly 1 is significantly improved, and there is no need for separate press-fitting later, avoiding scratching the stator core laminated by silicon steel sheets, preventing the separation and warping of the silicon steel sheets, ensuring the performance of the motor, and adopting the design of integral injection molding can reduce the manufacturing difficulty and cost of separately processing the isolation cover 3, without the need for a press-fitting process, and avoiding damage to the stator assembly 1. Specifically, the specific structure of the isolation cover 3 after forming will be described below by taking the latter as an example.

[0045] In the isolation cover 3 provided by the present disclosure, the rotor assembly 2 can be installed in the inner cavity 310 of the inner peripheral wall 31, and the stator assembly 1 can be installed in the corresponding side cavity 320, realizing the physical sealing isolation of the dry cavity and the oil cavity of the motor stator and rotor; the side surface of the isolation wall 32 is provided with a support portion 321, which can effectively support the stator assembly 1, share the acting force originally acting on the inner peripheral wall 31, ensure the stability of the stator assembly 1 in the side cavity 320, and improve the overall structural strength; at the same time, the support portion 321 can increase the connection strength between the isolation cover 3 and the components of the stator assembly 1, and improve the stiffness of the entire stator assembly 1.

[0046] The integrally injection-molded isolation cover 3 can completely fill the gaps between the components of the stator assembly 1. The structure of the isolation cover 3 after forming depends on the structural design of the stator assembly 1. Here, the structure of the stator assembly 1 will be introduced in detail first.

[0047] In the present disclosure, as Figure 6 and Figure 10 shown, the stator assembly 1 includes a plurality of stator core monomers 10 arranged in sequence along the circumferential direction, and one stator core monomer 10 is correspondingly arranged in each side cavity 320. Exemplarily, as Figures 11 to 13As shown, each stator core unit 10 includes a stator core segment 11, an insulating bracket 13, and a coil winding 12 wound around the outer periphery of the insulating bracket 13. The stator core segment 11 has a pole shoe 111, which can be of an I-shaped structure. The insulating bracket 13 can be designed as two halves spliced along the axial direction and can be mounted on the stator core segment 11 to achieve insulation between the coil winding 12 and the stator core segment 11. The insulating bracket 13 includes a skeleton body 131, an upper baffle 132, and a lower baffle 133 provided on the skeleton body 131. The coil winding 12 is wound around the skeleton body 131 and is stopped between the upper baffle 132 and the lower baffle 133 to form a stator core unit 10. As Figure 16 shown, an avoidance cavity 130 is formed on the upper baffle 132 and the skeleton body 131 to ensure that the butt-jointed insulating bracket 13 can be smoothly mounted on the stator core segment 11. Of course, the stator core unit 10 provided by the present disclosure is not limited to the above structural design and can be designed as needed.

[0048] As Figure 8 shown, after two adjacent stator core units 10 are fixed, there is a gap between them, and the partition wall 32 of the isolation cover 3 is just used to fill this gap. For each stator core unit 10, there is a first gap 101 between the pole shoe 111 and the lower baffle 133 of the insulating bracket 13. There will also be a second gap 102 between the coil winding 12 and the lower baffle 133, and a third gap 103 will also be stored between the coil winding 12 and the upper baffle 132. The second gap 102 and the third gap 103 are related to the number of turns and the cross-sectional shape of the wound coil winding 12. Compared with the first gap 101, by controlling the winding method of the coil winding 12, the second gap 102 and the third gap 103 can be minimized as much as possible.

[0049] Based on the stator core unit 10 with the above structural design, the partition wall 32 of the isolation cover 3 of the present disclosure has a special structural design. Exemplarily, as Figure 7 shown, the partition wall 32 has a root portion 322 located between two adjacent pole shoes 111. Along the radial direction of the partition wall 32, the circumferential width of the root portion 322 is equal. The shape of the root portion 322 is related to the shape of the pole shoe 111. The root portion 322 is close to the inner peripheral wall 31, and the circumferential dimension adopts an equal-width structural design, which can increase the connection strength between the bottom of the partition wall 32 and the inner peripheral wall 31 and provide a stable supporting effect on the stator core units 10 in the side cavities 320 on both sides.

[0050] In the present disclosure, the support portions 321 can be multiple arranged at intervals along the radial direction, and one of them is arranged close to the root portion 322. Exemplarily, as Figure 7As shown in the figure, in cooperation with the above-mentioned first gap 101, second gap 102, and third gap 103, three supporting parts are correspondingly formed. The first supporting part 3211 can fill the first gap 101 between the lower baffle 133 of the insulating bracket 13 and the pole shoe 111, and the first supporting part 3211 is closer to the root part 322. The second supporting part 3212 is used to fill the second gap 102 between the lower baffle 133 of the insulating bracket 13 and the coil winding 12, and the third supporting part 3213 is used to fill the third gap 103 between the upper baffle 132 of the insulating bracket 13 and the coil winding 12. Of course, the number of the supporting parts 321 in the present disclosure is not limited to three, and can be specifically designed according to the structure of the stator core unit 10.

[0051] As Figure 7 shown in the figure, the first supporting part 3211 has a first supporting surface 32111 and a second supporting surface 32112 that form an angle with each other. The first supporting surface 32111 is matched with the shape of the pole shoe 111 and extends to the root part 322 at one end, and the second supporting surface 32112 is used to bear the lower baffle 133 of the insulating bracket 13. The first supporting part 3211, the second supporting part 3212, and the third supporting part 3213 can respectively be formed into a protruding structure design similar to a needle tip. The protruding size of the first supporting part 3211 is larger, which plays a main supporting role for the stator core unit 10 in the opposite side cavity 320. The second supporting part 3212 and the third supporting part 3213 can also play an auxiliary supporting role. As Figure 1 and Figure 7 shown in the figure, the opposite two first supporting surfaces 32111 and the outer surface of the inner peripheral wall 31 together enclose a receiving groove 3214 that is matched with the shape of the pole shoe 111, and the opening of the receiving groove 3214 is communicated with the side cavity 320. The second supporting surface 32112 is related to the shape of the lower baffle 133. In this embodiment, the area between the opposite two second supporting surfaces 32112 is used to receive the lower baffle 133. The area between the opposite two second supporting parts 3212 is used to bear the coil winding 12, and the area between the opposite two third supporting parts 3213 is used to bear the upper baffle 132 of the insulating bracket 13.

[0052] Multiple stator core units 10 adopt the same structural design, and the shapes and sizes of the side cavities 320 are the same. In the present disclosure, the first supporting part 3211, the second supporting part 3212, and the third supporting part 3213 are respectively provided on the two side surfaces of the partition wall 32 to achieve an overall symmetrical design, reducing the manufacturing difficulty and processing cost.

[0053] As Figure 7As shown, the third support portion 3213 is close to the end of the isolation wall 32 away from the inner peripheral wall 31, and a stop surface is formed between the third support portion 3213 and the end to limit the insulation bracket 13 in the circumferential direction. A stepped surface is formed at the position of the third support portion 3213, and the height of the stepped surface can be exactly flush with the upper baffle 132, which can limit the insulation bracket 13 in the circumferential direction and will not affect the butt joint of two adjacent stator core segments 11.

[0054] As Figure 1 shown, the isolation cover has end walls 33 at both ends. An opening 330 for the lower baffle 133 of the insulation bracket 13 to extend into is provided on the end wall 33, and a plurality of openings 330 are arranged in sequence along the circumferential direction. As Figure 13 shown, the axial lengths of the upper baffle 132 and the lower baffle 133 are greater than the skeleton body 131. As Figure 15 shown, the extended part of the upper baffle 132 is used to lead out the coil winding 12 to connect to the busbar copper row, and the extended part of the lower baffle 133 can extend into the corresponding opening 330 to connect and fix the insulation bracket 13 to the isolation cover 3, further improving the overall structural strength. The position of the opening 330 in the radial direction can be designed according to the position of the lower baffle 133. In this embodiment, the opening 330 is arranged close to the inner peripheral wall 31 in the radial direction.

[0055] The rotor assembly 2 may include a rotating shaft 20 and a rotor assembly. As Figure 17 shown, bearings 21 are provided at both ends of the rotating shaft 20 and are axially located outside the isolation cover 3 to isolate and seal the part of the rotor assembly 2 extending outside the isolation cover 3. In the present disclosure, as Figure 2 shown, support rings 4 protruding axially outward are respectively provided at both ends of the isolation cover 3. The support rings 4 are coaxially arranged with the inner peripheral wall 31 to achieve the sealed isolation design of the dry cavity and the oil cavity.

[0056] The present disclosure includes an embodiment in which the support ring 4 and the isolation cover 3 shown in Figure 1 are of a split structure, that is, the support ring 4 can be injection-molded separately and is injection-molded with a different material from the isolation cover 3, and is press-fitted into the isolation cover 3 with an interference fit later. The present disclosure also includes an embodiment in which the support ring 4 and the isolation cover 3 shown in Figure 2 are of an integral structure, and the two are injection-molded integrally to further ensure the integrity of the structure.

[0057] According to a second aspect of the present disclosure, a motor is provided, which includes a stator assembly 1, a rotor assembly 2, and a shielding cover 3 that isolates the stator assembly 1 and the rotor assembly 2. The shielding cover 3 can be the shielding cover introduced in the above embodiments. The stator assembly 1 is physically sealed and isolated from the rotor assembly 2 through the shielding cover 3 integrally injection-molded on the inner ring, realizing the separation of the dry cavity and the oil cavity. As a core component of an automotive active suspension system, the motor adjusts the suspension height through pressure output, enabling high-dynamic adjustment of the suspension system for each wheel, ensuring that the vehicle is in a stable state on uneven roads, and thus improving driving comfort. This motor has all the beneficial effects of the above-mentioned shielding cover 3, and will not be elaborated here.

[0058] As Figures 14 to 18 shown, the motor includes a housing 6, a first end cover 51, and a second end cover 52 for enclosing the stator assembly 1 and the rotor assembly 2 within the housing 6. Potting glue is filled in the cavities 61 between the first end cover 51 and the stator assembly 1 and between the second end cover 52 and the stator assembly 1 respectively. After the shielding cover 3 and the stator assembly 1 are integrally fixed, the rotor assembly 2 is installed into the inner cavity 310 of the inner peripheral wall 31, and finally the cavity 61 is filled completely with potting glue to ensure the overall sealing performance of the motor.

[0059] In the present disclosure, as Figure 17 shown, a seal 22 is provided between the end covers corresponding to the support ring 4, which can further ensure the sealing performance at the position of the support ring 4 and improve the isolation and sealing effect.

[0060] According to a third aspect of the present disclosure, a vehicle includes the motor provided by the present disclosure. This vehicle has all the beneficial effects of the above-mentioned shielding cover 3 and the motor, and will not be elaborated here.

[0061] In addition, the word "exemplary" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be understood as being advantageous compared to other aspects or designs. Instead, the use of the word exemplary is intended to present concepts in a specific manner. As used herein, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless otherwise specified or clear from the context, "X applies A or B" is intended to mean any arrangement in a natural inclusive arrangement. That is, if X applies A; X applies B; or X applies both A and B, then "X applies A or B" is satisfied in any of the foregoing instances. Additionally, unless otherwise specified or clear from the context to refer to the singular form, the articles "a" and "an" as used in this application and the appended claims are generally understood to mean "one or more".

[0062] Similarly, although the present disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the claims. Specifically with respect to the various functions performed by the components (e.g., elements, resources, etc.) described above, unless otherwise indicated, the terms used to describe such components are intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if not structurally equivalent to the disclosed structure. Additionally, although certain features of the present disclosure may have been disclosed with respect to only one of several implementations, such features may, as may be desired and advantageous for any given or particular application, be combined with one or more other features of other implementations. Further, with respect to the use of the terms "comprising", "having", "including", "containing", or variations thereof in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term "including".

[0063] Other embodiments of the present disclosure will be readily apparent to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are pointed out by the appended claims.

[0064] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

[0065] In the foregoing detailed description, reference has been made to the accompanying drawings, which illustrate by way of illustration specific aspects in which the present disclosure may be practiced. In this regard, directional or positional relationship terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. may be used with reference to the orientation of the described figures. Since the components of the described devices may be positioned in a number of different orientations, the directional terms are used for illustrative purposes and not for purposes of limitation. It should be understood that other aspects may be utilized and structural or logical changes may be made without departing from the concepts of the present disclosure. Accordingly, the following detailed description should not be construed in a limiting sense.

[0066] It should be understood that, unless otherwise specifically indicated, the features of some embodiments of the present disclosure described herein can be combined with each other. As used herein, the term "and / or" includes any one of the related listed items and any combination of any two or more thereof; similarly, "at least one of..." includes any one of the related listed items and any combination of any two or more thereof.

[0067] It should be understood that, unless otherwise clearly defined and limited, the terms "engage", "attach", "mount", "connect", "couple", "fix", etc. used in the embodiments of the present disclosure should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this text can be understood according to specific circumstances.

[0068] In addition, the term "above" used for a component, element, or material layer formed "above" or located "above" a surface can be used herein to mean that the component, element, or material layer is "indirectly" positioned (e.g., placed, formed, deposited, etc.) on the surface such that one or more additional components, elements, or layers are disposed between the surface and the component, element, or material layer. However, the term "above" used for a component, element, or material layer formed "above" or located "above" a surface can also optionally have a specific meaning: the component, element, or material layer is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, e.g., in direct contact with the surface.

[0069] Although terms such as "first", "second", and "third" may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. On the contrary, these terms are only used to distinguish one component, part, region, layer, or section from another. Thus, the first component, part, region, layer, or section mentioned in the examples described herein can also be referred to as the second component, part, region, layer, or section without departing from the teachings of the various examples. Additionally, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In the description herein, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0070] It should be understood that, as used herein, spatial relative terms, such as "above", "upper", "below", and "lower", are used to describe the relationship of one element shown in the figures to another element. In addition to the orientation depicted in the figures, such spatial relative terms are also intended to encompass different orientations of the device during use or operation. For example, if the device in the figures is flipped, an element described as "above" or "upper" relative to another element will then be "below" or "lower" relative to that other element. Thus, depending on the spatial orientation of the device, the term "above" encompasses both the above and below orientations. The device may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein should be interpreted accordingly.

Claims

1. A motor, characterized in that, It includes a stator assembly, a rotor assembly, and a shield that isolates the stator assembly and the rotor assembly. The shield has an inner peripheral wall and a plurality of partition walls provided on the inner peripheral wall and arranged at intervals in the circumferential direction. The inner cavity of the inner peripheral wall is used to accommodate the rotor assembly, and a side cavity is formed between two adjacent partition walls for accommodating the stator assembly. Wherein, a support portion protruding toward the side cavity is provided on the side surface of the partition wall to support the stator assembly. The stator assembly includes a plurality of stator core monomers arranged in sequence in the circumferential direction. Each stator core monomer includes a stator core segment, an insulating bracket, and a coil winding wound around the outer periphery of the insulating bracket. The insulating bracket includes a skeleton body, an upper baffle, and a lower baffle provided on the skeleton body. The coil winding is wound around the skeleton body and is stopped between the upper baffle and the lower baffle. The stator core segment has a pole shoe, and there is a first gap between the pole shoe and the lower baffle of the insulating bracket. The support portion includes a first support portion capable of filling the first gap.

2. The motor according to claim 1, wherein, The partition wall has a root portion located between two adjacent pole shoes, and the circumferential width of the root portion is equal along the radial direction of the partition wall.

3. The motor according to claim 2, characterized in that, The support portions are multiple and arranged at intervals in the radial direction, and one of them is arranged close to the root portion.

4. The motor according to claim 2, characterized in that The first support portion has a first support surface and a second support surface that form an angle with each other. The first support surface is matched with the shape of the pole shoe and extends to the root portion at one end, and the second support surface is used to carry the lower baffle of the insulating bracket.

5. The motor according to claim 1, characterized in that, The support portion further includes a second support portion for filling a second gap between the lower baffle of the insulating bracket and the coil winding.

6. The motor according to claim 5, characterized in that, The support portion further includes a third support portion for filling a third gap between the upper baffle of the insulating bracket and the coil winding.

7. The motor according to claim 6, characterized in that, The first support portion, the second support portion, and the third support portion are respectively provided on two side surfaces of the partition wall.

8. The motor according to claim 6, characterized in that, The third support portion is close to the end of the partition wall away from the inner peripheral wall, and a stop surface is formed between the third support portion and the end to limit the insulating bracket in the circumferential direction.

9. The motor according to claim 1, wherein, The shield has end walls at both ends, and openings for the lower baffle of the insulating bracket to extend into are provided on the end walls. The openings are multiple and arranged in sequence in the circumferential direction, and the openings are close to the inner peripheral wall in the radial direction.

10. The motor according to any one of claims 1-9, characterized in that, Support rings protruding axially outward are respectively provided at both ends of the shield, and the support rings are coaxially arranged with the inner peripheral wall.

11. The motor according to claim 10, wherein, The support ring and the shield are of an integral structure.

12. The motor according to claim 1, wherein The motor includes a housing, a first end cover, and a second end cover for enclosing the stator assembly and the rotor assembly in the housing. Potting glue is respectively filled in the cavities between the first end cover and the stator assembly and between the second end cover and the stator assembly.

13. The motor according to claim 12, characterized in that, Support rings protruding axially outward are respectively provided at both ends of the shield, and a seal is provided between the support ring and the corresponding end cover.

14. A vehicle, characterized in that, It includes the motor according to any one of claims 1-13.

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