Isolation hood, motor and vehicle

Abstract

The invention relates to an isolation hood, a motor and a vehicle, the isolation hood is used for isolating a stator assembly and a rotor assembly of the motor, the isolation hood is provided with an inner circumferential wall and a plurality of isolation walls which are arranged on the inner circumferential wall and are arranged at intervals in the circumferential direction, an inner cavity of the inner circumferential wall is used for accommodating the rotor assembly, and a side cavity is formed between every two adjacent isolation walls; the side cavity is used for accommodating a stator assembly, and the side face of the isolation wall is provided with a supporting part protruding towards 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, so that the dry cavity and the oil cavity of the stator and the rotor of the motor are physically sealed and isolated; the side surface of the isolation wall is provided with a supporting part which effectively supports the stator assembly, shares the acting force originally acting on the inner circumferential wall, guarantees the stability of the stator assembly in the side cavity, and improves the overall structural strength. The supporting part can increase the connection strength between the isolation cover and each part of the stator assembly, and improves the rigidity of the whole stator assembly.

Description

Technical Field

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

[0002] The stator in the motor pump is usually cooled naturally or by water, and the rotor is lubricated by oil. The stator and rotor need to be sealed and isolated by an isolation cover to achieve dry and wet separation of the stator and rotor. In the related art, the isolation cover has a single structure and cannot effectively support the stator, affecting the overall structural strength. Summary of the invention

[0003] In order to overcome the problems existing in the related art, 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, an isolation cover is provided for isolating a stator assembly and a rotor assembly of a motor, the isolation cover having an inner peripheral wall and a plurality of isolation walls arranged on the inner peripheral wall and spaced apart in a circumferential direction, the inner cavity of the inner peripheral wall being used to accommodate the rotor assembly, a side cavity being formed between two adjacent isolation walls, the side cavity being used to accommodate the stator assembly, Wherein, the side surface of the isolation wall has a supporting portion protruding toward the side cavity to support the stator assembly.

[0005] Optionally, the stator assembly includes a plurality of stator core segments arranged in sequence along the circumferential direction, each of the stator core segments has a pole shoe, and the isolation wall has a root base portion located between two adjacent pole shoes, and the circumferential width of the root base portion is equal along the radial direction of the isolation wall.

[0006] Optionally, the supporting parts are multiple and spaced apart in the radial direction, and one of them is arranged close to the root base.

[0007] Optionally, the stator assembly further comprises an insulating support and a coil winding wound around the outer circumference of the insulating support, each of the stator core blocks is installed with the insulating support and the coil winding to form a stator core monomer, and the partition wall is located between two adjacent stator core monomers; The insulating support comprises a frame body and an upper baffle and a lower baffle arranged on the frame body, and the coil winding is wound on the frame body and stopped between the upper baffle and the lower baffle; Wherein, the support portion includes a first support portion capable of filling a first gap between a lower baffle of the insulating bracket and the pole shoe.

[0008] Optionally, the first supporting portion has a first supporting surface and a second supporting surface which are angled with each other, the first supporting surface matches the shape of the pole shoe and one end of the first supporting surface extends to the root base, and the second supporting surface is used to support a lower baffle of the insulating bracket.

[0009] Optionally, the support portion further includes a second support portion for filling a second gap between the lower baffle of the insulating support and the coil winding.

[0010] Optionally, the support portion further includes a third support portion for filling a third gap between an upper baffle of the insulating support and the coil winding.

[0011] Optionally, the first supporting portion, the second supporting portion and the third supporting portion are respectively provided on two side surfaces of the isolation wall.

[0012] Optionally, the third supporting portion is close to an end portion of the isolation wall away from the inner peripheral wall, and forms a stop surface between the third supporting portion and the end portion to limit the insulating bracket in the circumferential direction.

[0013] Optionally, the isolation cover has end walls at both ends, the end walls are provided with openings for the lower baffle of the insulating support to extend into, the openings are multiple and arranged in sequence along the circumferential direction, and the openings are close to the inner circumferential wall in the radial direction.

[0014] Optionally, support rings protruding outward along the axial direction are respectively provided at both ends of the isolation cover, and the support rings are coaxially arranged with the inner peripheral wall.

[0015] Optionally, the support ring and the isolation cover are an integrated structure.

[0016] According to a second aspect of an embodiment of the present disclosure, there is provided a motor, comprising a stator assembly, a rotor assembly and an isolation cover for isolating the stator assembly and the rotor assembly, wherein the isolation cover is the isolation cover described above.

[0017] Optionally, the motor includes a housing and a first end cover and a second end cover for enclosing the stator assembly and the rotor assembly in the housing, and the cavities between the first end cover and the stator assembly and between the second end cover and the stator assembly are respectively filled with potting glue.

[0018] Optionally, support rings protruding outward in the axial direction 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.

[0019] According to a third aspect of an embodiment of the present disclosure, a vehicle includes the above-mentioned motor.

[0020] The technical solution 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 circumferential wall, and the stator assembly can be installed in the corresponding side cavity, so as to realize the physical sealing isolation between the dry cavity and the oil cavity of the stator and rotor of the motor; a support portion is provided on the side of the isolation wall, which can effectively support the stator assembly, share the force originally acting on the inner circumferential 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 various components of the stator assembly, and improve the rigidity of the entire stator assembly.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] Figure 1 The figure is a schematic structural diagram of an isolation cover according to an exemplary embodiment.

[0024] Figure 2 is a schematic structural diagram of an isolation cover according to another exemplary embodiment.

[0025] Figures 3 to 5 is a cross-sectional view of an isolation cover according to an exemplary embodiment.

[0026] Figure 6 and Figure 7 The figure is a schematic diagram showing the assembly of an isolation cover and a stator assembly according to an exemplary embodiment.

[0027] Figure 8 It is a partial schematic diagram of a stator assembly in a motor according to an exemplary embodiment.

[0028] Fig. 9 is a stereoscopic diagram of a stator assembly in a motor according to an exemplary embodiment.

[0029] Fig.10 is a cross-sectional view of a stator assembly in a motor according to an exemplary embodiment.

[0030] Figures 11 to 13 It is a schematic diagram of assembling a stator assembly in a motor according to an exemplary embodiment.

[0031] Fig.14 is a schematic structural diagram of a motor according to an exemplary embodiment.

[0032] Fig.15 It is a schematic diagram of the internal structure of a motor according to an exemplary embodiment.

[0033] Fig.16 is an exploded diagram of a motor according to an exemplary embodiment.

[0034] Fig.17 is a cross-sectional view of a motor according to an exemplary embodiment.

[0035] Fig.18 It is a partially enlarged view of a motor according to an exemplary embodiment.

[0036] Description of Reference Numerals 1- stator assembly; 10- stator core monomer; 101- first gap; 102- second gap; 103- third gap; 11- stator core block; 111- pole shoe; 12- coil winding; 13- insulating 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-partition wall; 33-end wall; 320-side cavity; 321-support portion; 3211-first support portion; 32111-first support surface; 32112-second support surface; 3212-second support portion; 3213-third support portion; 3214-accommodating groove; 322-root base; 330-opening; 4-support ring; 51-first end cover; 52-second end cover; 6-shell; 61-cavity. DETAILED DESCRIPTION

[0037] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments 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.

[0038] In the present disclosure, unless otherwise specified, directional words such as "axial", "circumferential", and "radial" are generally used relative to the rotation axis of the motor provided by the present disclosure, and "inside and outside" may refer to the inside and outside of the corresponding component contour or the inside or outside of the environment in which it is located, depending on the specific context. In addition, 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 to distinguish one element from another and have no order or importance.

[0039] In order to solve the technical problem that the structure of the isolation cover in the related art is single and cannot effectively support the stator, such as Figures 1 to 5 As shown, the present disclosure provides an isolation cover 3, which is used to isolate the stator assembly 1 and the rotor assembly 2 of the motor. The isolation cover 3 has an inner circumferential wall 31 and a plurality of isolation walls 32 arranged on the inner circumferential wall 31 and arranged at intervals along the circumferential direction. The inner cavity 310 of the inner circumferential 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 supporting portion 321 protruding toward the side cavity 320 to support the stator assembly 1.

[0040] 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 later interference fit into the inner ring of the stator assembly 1. It can also form an integrated structure with the stator assembly 1 during injection molding, that is, after the components of the stator assembly 1 are fixed, the plastic liquid is poured, and the injection liquid can completely fill the gaps between the components of the stator assembly 1. After the molding and demolding, the isolation cover 3 and the stator assembly 1 are an integrated structure, and the structural rigidity of the entire stator assembly 1 is significantly improved. There is no need for a separate press-fit later, so as to avoid scratching the stator core formed by the stacking of silicon steel sheets, and prevent the silicon steel sheets from separating and warping, so as to ensure the performance of the motor, and adopt the design of integral injection molding, which can reduce the manufacturing difficulty and cost of processing the isolation cover 3 separately, and does not require a press-fitting process, so as to avoid damage to the stator assembly 1. Specifically, the specific structure of the isolation cover 3 after molding will be described below with the latter as an example.

[0041] In the isolation cover 3 provided in the present disclosure, the rotor assembly 2 can be installed in the inner cavity 310 of the inner circumferential wall 31, and the stator assembly 1 can be installed in the corresponding side cavity 320, so as to realize the physical sealing isolation between the dry cavity and the oil cavity of the motor stator and rotor; a support portion 321 is provided on the side of the isolation wall 32, which can effectively support the stator assembly 1, share the force originally acting on the inner circumferential 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 various components of the stator assembly 1, and improve the rigidity of the entire stator assembly 1.

[0042] The one-piece injection-molded isolation cover 3 can completely fill the gaps between the components of the stator assembly 1. The structure of the molded isolation cover 3 depends on the structural design of the stator assembly 1. Here, the structure of the stator assembly 1 is first introduced in detail.

[0043] In this disclosure, Figure 6 and Fig.10 As shown, the stator assembly 1 includes a plurality of stator core monomers 10 arranged in sequence along the circumferential direction, and a stator core monomer 10 is correspondingly arranged in each side cavity 320. For example, Figures 11 to 13As shown, each stator core monomer 10 includes a stator core block 11, an insulating bracket 13 and a coil winding 12 wound around the outer periphery of the insulating bracket 13. The stator core block 11 has a pole shoe 111, which can be an I-shaped structure. The insulating bracket 13 can be designed as two halves spliced ​​along the axial direction and can be installed on the stator core block 11 to achieve insulation between the coil winding 12 and the stator core block 11. The insulating bracket 13 includes a skeleton body 131 and an upper baffle 132 and a lower baffle 133 provided on the skeleton body 131. The coil winding 12 is wound on the skeleton body 131 and stopped between the upper baffle 132 and the lower baffle 133 to form a stator core monomer 10. As shown Fig.16 As shown, the upper baffle 132 and the frame body 131 form an avoidance cavity 130 to ensure that the insulation bracket 13 can be smoothly installed on the stator core block 11 after docking. Of course, the stator core monomer 10 provided by the present disclosure is not limited to the above structural design, and can be designed according to needs.

[0044] like Figure 8 As shown, after two adjacent stator core monomers 10 are fixed, there is a gap between the two, and the isolation wall 32 of the isolation cover 3 is used to fill the gap. For each stator core monomer 10, there is a first gap 101 between the pole shoe 111 and the lower baffle 133 of the insulating bracket 13, and there is also a second gap 102 between the coil winding 12 and the lower baffle 133, and there is also a third gap 103 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, the second gap 102 and the third gap 103 can be minimized by controlling the winding method of the coil winding 12.

[0045] Based on the stator core monomer 10 of the above structural design, the isolation wall 32 of the isolation cover 3 of the present disclosure has a special structural design. For example, Figure 7 As shown, the partition wall 32 has a root base 322 located between two adjacent pole shoes 111, and the circumferential width of the root base 322 is equal along the radial direction of the partition wall 32. The shape of the root base 322 is related to the shape of the pole shoe 111, the root base 322 is close to the inner circumferential wall 31, and the circumferential dimension adopts a structural design of equal width, which can increase the connection strength between the bottom of the partition wall 32 and the inner circumferential wall 31, and provide a stable support effect for the stator core monomer 10 in the side cavity 320 on both sides.

[0046] In the present disclosure, the support portions 321 may be multiple and spaced apart in the radial direction, and one of the support portions 321 is disposed close to the base portion 322. Figure 7As shown, three supporting parts are formed correspondingly with the above-mentioned first gap 101, second gap 102 and third gap 103. 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 base 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 and the coil winding 12. Of course, the number of 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 monomer 10.

[0047] like Figure 7 As shown, the first support portion 3211 has a first support surface 32111 and a second support surface 32112 that are angled with each other. The first support surface 32111 matches the shape of the pole shoe 111 and one end extends to the base portion 322. The second support surface 32112 is used to support the lower baffle 133 of the insulating bracket 13. The first support portion 3211, the second support portion 3212 and the third support portion 3213 can be formed into a protruding structure design similar to a needle tip. The protruding size of the first support portion 3211 is larger, and it plays a major supporting role for the stator core monomer 10 in the side cavity 320. The second support portion 3212 and the third support portion 3213 can also play an auxiliary supporting role. Figure 1 and Figure 7 As shown, the two opposite first supporting surfaces 32111 and the outer surface of the inner peripheral wall 31 together form a receiving groove 3214 that matches the shape of the pole shoe 111, and the opening of the receiving groove 3214 is connected to 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 two opposite second supporting surfaces 32112 is used to accommodate the lower baffle 133. The area between the two opposite second supporting portions 3212 is used to carry the coil winding 12, and the area between the two opposite third supporting portions 3213 is used to carry the upper baffle 132 of the insulating bracket 13.

[0048] Multiple stator core monomers 10 adopt the same structural design, and the side cavities 320 have the same shape and size. In the present disclosure, a first support portion 3211, a second support portion 3212 and a third support portion 3213 are respectively provided on the two sides of the isolation wall 32 to achieve an overall symmetrical design and reduce manufacturing difficulty and processing costs.

[0049] like Figure 7As shown, the third support portion 3213 is close to the end of the partition wall 32 away from the inner peripheral wall 31, and a stop surface is formed between the end to limit the insulating bracket 13 in the circumferential direction. A step surface is formed at the position of the third support portion 3213, and the height of the step surface can be just flush with the upper baffle 132, so that the insulating bracket 13 can be limited in the circumferential direction without affecting the docking of two adjacent stator core segments 11.

[0050] like Figure 1 As shown, the isolation cover has end walls 33 at both ends, and the end walls 33 are provided with openings 330 for the lower baffle 133 of the insulating bracket 13 to extend into, and the openings 330 are arranged in sequence along the circumferential direction. Fig.13 As shown, the axial lengths of the upper baffle 132 and the lower baffle 133 are greater than the frame body 131. Fig.15 As shown, the extended portion of the upper baffle 132 is used to lead out the coil winding 12 to connect the busbar, and the extended portion of the lower baffle 133 can be extended into the corresponding opening 330 to connect and fix the insulating bracket 13 to the isolation cover 3, further improving the overall structural strength. The radial position of the opening 330 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.

[0051] The rotor assembly 2 may include a rotating shaft 20 and a rotor assembly, such as Fig.17 As shown, bearings 21 are provided at both ends of the rotating shaft 20 and are located outside the isolation cover 3 in the axial direction to isolate and seal the portion of the rotor assembly 2 extending outside the isolation cover 3. Figure 2 As shown, support rings 4 protruding outward along the axial direction are respectively provided at both ends of the isolation cover 3, and the support ring 4 is coaxially arranged with the inner peripheral wall 31 to realize the sealing isolation design of the dry cavity and the oil cavity.

[0052] The present disclosure includes Figure 1 The support ring 4 and the isolation cover 3 shown in the figure are embodiments of a split structure, that is, the support ring 4 can be injection molded separately, and injection molded with a different material from the isolation cover 3, and then press-fitted to the isolation cover 3 by interference. Figure 2 The support ring 4 and the isolation cover 3 shown are an embodiment of an integrated structure, and the two are integrally injection molded to further ensure the integrity of the structure.

[0053] According to the second aspect of the present disclosure, a motor is provided, comprising a stator assembly 1, a rotor assembly 2, and an isolation cover 3 for isolating the stator assembly 1 and the rotor assembly 2, and the isolation cover 3 may be the isolation cover introduced in the above embodiment. The stator assembly 1 is formed by integrally injecting the inner ring of the isolation cover 3, which physically seals and isolates the stator assembly 1 from the rotor assembly 2, thereby separating the dry cavity from the oil cavity. As a core component of the active suspension system of an automobile, the motor adjusts the suspension height through pressure output, and can achieve high-dynamic adjustment of the suspension system of each wheel, ensuring that the vehicle is in a stable state on uneven roads, thereby improving driving comfort. The motor has all the beneficial effects of the above-mentioned isolation cover 3, which will not be described in detail here.

[0054] like Figures 14 to 18 As shown, the motor includes a housing 6 and a first end cover 51 and a second end cover 52 for enclosing the stator assembly 1 and the rotor assembly 2 in the housing 6, and 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 are respectively filled with potting glue. After the isolation cover 3 and the stator assembly 1 are fixed as a whole, the rotor assembly 2 is installed in the inner cavity 310 of the inner peripheral wall 31, and finally the cavity 61 is completely filled with potting glue to ensure the sealing of the motor as a whole.

[0055] In this disclosure, Fig.17 As shown, a sealing member 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.

[0056] According to a third aspect of the present disclosure, a vehicle includes the motor provided by the present disclosure. The vehicle has all the beneficial effects of the above-mentioned isolation cover 3 and motor, which will not be described in detail here.

[0057] In addition, the word "exemplary" is used herein to indicate serving as an example, instance, or diagram. Any aspect or design described as "exemplary" in this article is not necessarily understood to be advantageous compared to other aspects or designs. On the contrary, the use of the word exemplary is intended to present concepts in a specific way. As used herein, the term "or" is intended to represent 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 represent any one of the natural inclusive arrangements. That is, if X applies A; X applies B; or X applies both A and B, "X applies A or B" is satisfied under any of the aforementioned examples. In addition, unless otherwise specified or clearly pointed to a singular form from the context, the articles "one" and "an" as used in this application and the appended claims are generally understood to mean "one or more".

[0058] Likewise, 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 after reading and understanding the specification and drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, 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 functions of the described components, even if the structure is not equivalent to the disclosed structure. In addition, although specific features of the present disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations as may be desired and beneficial to any given or specific application. In addition, with respect to "including", "having", "having", "having", or variations thereof used in a specific embodiment or claim, such terms are intended to be inclusive in a manner similar to the term "comprising".

[0059] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0060] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

[0061] In the above detailed description, reference is made to the accompanying drawings, which illustrate specific aspects of the present disclosure that can be practiced by way of illustration. In this regard, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating directions or representing positional relationships, can be used with reference to the orientation of the described figures. Since the components of the described device can be positioned in a plurality of different orientations, directional terms can be used for illustrative purposes rather than restrictive. It should be understood that other aspects can be utilized and structural or logical changes can be made without departing from the concepts of the present disclosure. Therefore, the following detailed description should not be considered in a limiting sense.

[0062] It should be understood that, unless otherwise specifically noted, the features of some embodiments of the various present disclosures described herein may 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; similarly, "at least one of . . . " includes any one of the related listed items and any combination of any two or more.

[0063] It should be understood that, unless otherwise clearly specified and limited, the terms "joining", "attaching", "installing", "connecting", "connecting", "fixing" and the like 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 an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0064] In addition, the term "above" used in relation to a component, element or material layer formed "above" or located "above" a surface may be used herein to indicate 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 arranged between the surface and the component, element or material layer. However, the term "above" used in relation to a component, element or material layer formed "above" or located "above" a surface may also optionally have a specific meaning: the component, element or material layer is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, such as in direct contact with the surface.

[0065] Although terms such as "first", "second" and "third" can 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, component, region, layer or section from another component, component, region, layer or section. Therefore, without departing from the teachings of each example, the first component, component, region, layer or section mentioned in the examples described herein may also be referred to as the second component, component, region, layer or section. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may expressly or implicitly include at least one of the features. In the description herein, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] It should be understood that spatially relative terms such as "above", "upper", "below", and "lower" are used herein to describe the relationship of one element to another element shown in the figures. In addition to the orientation depicted in the drawings, such spatially relative terms are also intended to include different orientations of the device in use or operation. For example, if the device in the drawings is turned over, the element described as being "above" or "upper" relative to another element will be "below" or "lower" relative to the other element. Therefore, depending on the spatial orientation of the device, the term "above" includes both upper and lower orientations. The device may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used herein should be interpreted accordingly.

Claims

1. An isolation cover for isolating a stator assembly and a rotor assembly of a motor, characterized in that: The isolation cover has an inner peripheral wall and a plurality of isolation walls arranged on the inner peripheral wall and spaced apart 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 isolation walls, and the side cavity is used to accommodate the stator assembly. Wherein, the side surface of the isolation wall has a supporting portion protruding toward the side cavity to support the stator assembly.

2. The isolation cover according to claim 1, characterized in that: The stator assembly includes a plurality of stator core blocks arranged in sequence along the circumferential direction, each of the stator core blocks has a pole shoe, and the partition wall has a root base portion located between two adjacent pole shoes. Along the radial direction of the partition wall, the circumferential width of the root base portion is equal.

3. The isolation cover according to claim 2, characterized in that: The supporting parts are multiple and spaced apart in the radial direction, and one of the supporting parts is arranged close to the root base.

4. The isolation cover according to claim 2, characterized in that: The stator assembly further includes an insulating support and a coil winding wound around the outer circumference of the insulating support, each stator core block is installed with the insulating support and the coil winding to form a stator core monomer, and the partition wall is located between two adjacent stator core monomers; The insulating support comprises a frame body and an upper baffle and a lower baffle arranged on the frame body, and the coil winding is wound on the frame body and stopped between the upper baffle and the lower baffle; Wherein, the support portion includes a first support portion capable of filling a first gap between a lower baffle of the insulating bracket and the pole shoe.

5. The isolation cover according to claim 4, characterized in that: The first supporting portion comprises a first supporting surface and a second supporting surface which are angled with each other, the first supporting surface matches the shape of the pole shoe and one end of the first supporting surface extends to the base portion, and the second supporting surface is used to support the lower baffle of the insulating bracket.

6. The isolation cover according to claim 4, characterized in that: The support portion further includes a second support portion for filling a second gap between a lower baffle of the insulating support and the coil winding.

7. The isolation cover according to claim 6, characterized in that: The support portion further includes a third support portion for filling a third gap between an upper baffle of the insulating support and the coil winding.

8. The isolation cover according to claim 7, characterized in that: The first supporting portion, the second supporting portion and the third supporting portion are respectively disposed on two side surfaces of the isolation wall.

9. The isolation cover according to claim 7, characterized in that: The third supporting portion is close to the end of the isolation wall away from the inner peripheral wall, and forms a stop surface between the third supporting portion and the end to limit the insulating bracket in the circumferential direction.

10. The isolation cover according to claim 4, characterized in that: The isolation cover has end walls at both ends, and the end walls are provided with openings for the lower baffle of the insulating support to extend into. The openings are multiple and arranged in sequence along the circumferential direction, and the openings are close to the inner circumferential wall in the radial direction.

11. The isolation cover according to any one of claims 1 to 10, characterized in that: Support rings protruding outward along the axial direction are respectively provided at both ends of the isolation cover, and the support rings are coaxially arranged with the inner peripheral wall.

12. The isolation cover according to claim 11, characterized in that: The support ring and the isolation cover are an integrated structure.

13. A motor, characterized in that: It comprises a stator assembly, a rotor assembly and an isolation cover for isolating the stator assembly and the rotor assembly, wherein the isolation cover is the isolation cover described in any one of claims 1-12.

14. The motor according to claim 13, characterized in that The motor comprises a housing and a first end cover and a second end cover for enclosing the stator assembly and the rotor assembly in the housing. The cavities between the first end cover and the stator assembly and between the second end cover and the stator assembly are respectively filled with potting glue.

15. The motor according to claim 13, characterized in that Support rings protruding outward along the axial direction 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.

16. A vehicle, characterized in that: A motor comprising any one of claims 13-15.

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