Motor controller cover plate, motor assembly and vehicle

Abstract

The embodiment of the utility model provides a motor controller cover plate, a motor assembly and a vehicle, and relates to the field of vehicle engineering, and the motor controller cover plate comprises a cover plate body and a plurality of reinforcing ribs. The cover plate body is provided with an outwards-protruding arch-shaped part, the reinforcing ribs are all arranged on the cover plate body, and at least part of the reinforcing ribs are located on the inwards-concave face of the arch-shaped part. The motor controller cover plate is high in rigidity, high in modal frequency and good in NVH modal optimization effect. The motor assembly and the vehicle both comprise the motor controller cover plate, and at least have the advantages of being good in NVH modal optimization effect and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vehicle engineering, and concretely relates to a motor controller cover plate, motor assembly and vehicle. BACKGROUND

[0002] At present, in order to optimize the NVH mode of the motor controller cover plate, reinforcing ribs are generally arranged on the inner surface of the cover plate, and the reinforcing ribs are generally in the form of field-shaped reinforcing ribs.

[0003] The inventor finds at least the following shortcomings of the prior art motor controller cover plate in research.

[0004] The cover plate modal frequency is low, the dynamic stiffness is poor, and the whole vehicle NVH performance is affected. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a motor controller cover plate, motor assembly and vehicle, which can improve the cover plate modal frequency, improve the cover plate dynamic stiffness and improve the whole vehicle NVH performance.

[0006] The embodiment of the utility model can be realized as follows:

[0007] In a first aspect, the utility model provides a motor controller cover plate, comprising:

[0008] A cover plate body and a plurality of reinforcing ribs; the cover plate body is provided with an outward convex arched portion, and the plurality of reinforcing ribs are all arranged on the cover plate body, and at least part of the plurality of reinforcing ribs is located on the inner concave surface of the arched portion.

[0009] In an optional embodiment, at least part of the plurality of reinforcing ribs is arranged in a radial shape.

[0010] Or / and, at least part of the plurality of reinforcing ribs is arranged in a ring structure.

[0011] In an optional embodiment, at least part of the plurality of reinforcing ribs is arranged in a cross shape.

[0012] In an optional embodiment, the plurality of reinforcing ribs are all arranged on the same plate surface of the cover plate body.

[0013] In an optional embodiment, the plurality of reinforcing ribs comprise a ring-shaped rib and a plurality of strip-shaped ribs, the plurality of strip-shaped ribs are arranged in a radial shape, and the ring-shaped rib and the plurality of strip-shaped ribs are arranged in a cross shape.

[0014] In an optional embodiment, at least part of the ring-shaped rib is connected with the arched portion.

[0015] In an optional embodiment, at least some of the plurality of strip-shaped reinforcing ribs are connected to the arch-shaped portion.

[0016] In an optional embodiment, the ends of some of the plurality of strip-shaped reinforcing ribs do not extend into the area enclosed by the ring-shaped reinforcing rib.

[0017] In an optional embodiment, the arch-shaped portion is provided in a plurality.

[0018] In an optional embodiment, at least some of the plurality of reinforcing ribs are provided with a recess.

[0019] In an optional embodiment, the height of at least some of the reinforcing ribs located on the arch-shaped portion is greater than the height of at least some of the reinforcing ribs located outside the arch-shaped portion.

[0020] In an optional embodiment, the cover plate body comprises oppositely arranged inner and outer plate surfaces, the inner plate surface is provided with a recess, the arch-shaped portion is formed on the bottom wall of the recess, and at least one end of some of the plurality of reinforcing ribs is connected to the side wall of the recess.

[0021] In an optional embodiment, the outer plate surface is provided with a positioning protrusion for positioning a pipeline.

[0022] In an optional embodiment, the cover plate body and the plurality of reinforcing ribs are provided in an integrated structure.

[0023] In an optional embodiment, the thickness of the reinforcing rib gradually decreases in the direction from the first side of the reinforcing rib to the second side of the reinforcing rib, the first side is opposite to the second side, and the first side is connected to the cover plate body.

[0024] In a second aspect, the utility model provides a motor assembly, the motor assembly comprises:

[0025] The motor controller cover plate of the foregoing embodiment.

[0026] In a third aspect, the utility model provides a vehicle, the vehicle comprises:

[0027] The motor assembly of the foregoing embodiment.

[0028] The beneficial effects of the embodiments of the utility model include, for example:

[0029] In summary, the motor controller cover plate provided by the embodiment comprises a cover plate body and a plurality of reinforcing ribs, the cover plate body is provided with an outward convex arc-shaped portion, the plurality of reinforcing ribs are arranged on the cover plate body, and at least part of the reinforcing ribs is located on the inner concave surface of the arc-shaped portion. The arc-shaped portion and the reinforcing ribs cooperate to enhance the structural strength of the cover plate body. The inner concave surface of the arc-shaped portion is designed to increase the depth of the cover plate body, so that the height of the part of the reinforcing ribs located on the inner concave surface can be designed to be higher, thereby improving the rigidity of the reinforcing ribs and the rigidity of the overall structure of the motor controller cover plate. When the rigidity of the motor control cover plate increases, the modal frequency of the motor control cover plate increases, thereby optimizing the dynamic stiffness performance of the motor control cover plate, reducing the radiation noise, and improving the NVH performance of the whole vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, it should be understood, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0031] Figure 1 It is an assembly view of the motor controller cover plate of the embodiment of the present application.

[0032] Figure 2 It is an exploded view of the motor controller cover plate of the embodiment of the present application.

[0033] Figure 3 It is an inside view of the motor controller cover plate of the embodiment of the present application.

[0034] Figure 4 It is a partial enlarged view of the arc-shaped portion and the reinforcing rib in the arc-shaped portion and the reinforcing rib. Figure 3

[0035] Figure 5 It is a view of the cover plate body and the reinforcing rib cooperation of the embodiment of the present application.

[0036] Figure 6 It is a view of the cover plate body of the embodiment of the present application.

[0037] Figure 7 It is a view of the arc-shaped portion and the reinforcing rib cooperation of the embodiment of the present application.

[0038] Figure:

[0039] ​100 - cover body; 101 - recess; 110 - base plate portion; 111 - inner side plate face; 112 - outer side plate face; 113 - wiring harness mounting window; 120 - skirt portion; 130 - annular folded edge portion; 140 - mounting lugs; 141 - mounting through hole; 150 - arch portion; 151 - inner concave face; 152 - outer convex face; 160 - first arch portion; 170 - second arch portion; 200 - closure cap; 300 - reinforcing rib; 301 - first side; 302 - second side; 303 - sub-rib; 304 - avoidance slot; 310 - first reinforcing unit; 311 - first strip rib; 320 - second reinforcing unit; 321 - second strip rib; 322 - first annular rib; 323 - second annular rib; 330 - third reinforcing unit; 331 - third strip rib; 332 - fourth strip rib; 333 - fifth strip rib; 334 - third annular rib; 335 - fourth annular rib; 400 - positioning protrusion. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0042] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0043] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0044] In addition, if the terms "first", "second" or the like are used, they are used only for the purpose of distinguishing a description and cannot be understood as indicating or implying relative importance. The term "multiple" means two or more.

[0045] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0046] In the prior art, the plate body of the motor controller cover plate is generally provided as a flat plate structure, the rigidity of the plate body is low and easy to deform, and the cover plate of the flat plate structure is easy to resonate with the motor and the reducer during the operation of the vehicle, resulting in that the vehicle NVH is out of standard. At present, the way to improve NVH is generally to add a reinforcing rib 300 on the inner side plate surface 111 of the plate body. Since the motor controller cover plate is connected with the motor controller box body, and the reinforcing rib 300 is located in the motor controller box body, the size of the reinforcing rib 300 extending into the motor controller box body is certain due to the installation of the parts in the motor controller box body. Therefore, the distance between the inner side plate surface 111 and the port of the box body determines the design height of the reinforcing rib 300. Since the existing inner side plate surface 111 is a plane, the distance between the inner side plate surface 111 and the plane where the port of the box body is located is small, the height of the reinforcing rib 300 is limited, resulting in that the rigidity of the reinforcing rib 300 is not enough, the rigidity of the motor control cover plate is small, and the NVH improvement effect is not good.

[0047] Therefore, the designer provides a motor controller cover plate, which sets an outward convex arc-shaped part 150 on the cover plate body 100, the inner concave surface 151 of the arc-shaped part 150 has a certain depth, which can provide more installation space for the reinforcing rib 300, so as to design a reinforcing rib 300 with higher height, thereby improving the rigidity of the motor controller cover plate and achieving good NVH improvement effect.

[0048] Please refer to Figure 1 , Figure 3 and Figure 5 , the present embodiment provides a motor controller cover plate, which comprises a cover plate body 100 and a plurality of reinforcing ribs 300. The cover plate body 100 is provided with an outward convex arc-shaped part 150, and the plurality of reinforcing ribs 300 are all arranged on the cover plate body 100, and at least part of the plurality of reinforcing ribs 300 are located on the inner concave surface 151 of the arc-shaped part 150.

[0049] As described above, the working principle of the motor controller cover plate provided by the present embodiment is as follows:

[0050] By setting the outward convex arched part 150 on the cover plate body 100, the arched part 150 has an inner concave surface 151 located on the inner side of the cover plate body 100, the depth of the position corresponding to the inner concave surface 151 of the cover plate body 100 is increased, after the cover plate body 100 is connected with the box body, the distance between the inner concave surface 151 and the plane where the port of the box body is located is increased, the height of the reinforcing rib 300 arranged on the inner concave surface 151 can be designed to be higher, so as to improve the rigidity of the reinforcing rib 300, and further improve the rigidity of the motor controller cover plate. When the rigidity of the motor control cover plate is increased, the modal frequency of the motor control cover plate is increased, so as to optimize the dynamic stiffness performance of the motor control cover plate, reduce the radiation noise, and the NVH performance of the whole vehicle is better.

[0051] The following embodiments illustrate the detailed structure of the motor controller cover plate of the present application by way of example.

[0052] Please refer to Figure 1 , Figure 2 and Figure 5 In the present embodiment, optionally, the motor controller cover plate comprises a cover plate body 100, a cover 200, a reinforcing rib 300 and a positioning protrusion 400. The cover 200 is detachably connected with the cover plate body 100 through screws or other fasteners, and the cover plate body 100, the reinforcing rib 300 and the positioning protrusion 400 can be integrally formed by die casting, which is convenient for processing and has high overall structural strength and rigidity. It should be understood that, in order to facilitate mold opening, the reinforcing rib 300 is provided with a draft angle, in other words, the thickness of the reinforcing rib 300 gradually decreases in the direction from the first side 301 of the reinforcing rib 300 to the second side 302 of the reinforcing rib 300, the first side 301 is opposite to the second side 302, and the first side 301 is connected with the cover plate body 100. Such design not only facilitates mold opening, but also makes the reinforcing rib 300 and the cover plate body 100 more firmly combined due to the increased thickness at the connection between the reinforcing rib 300 and the cover plate body 100, which can further improve the rigidity of the cover plate body 100 and reduce the radiation noise. Obviously, in other embodiments, the cover plate body 100, the positioning protrusion 400 and the plurality of reinforcing ribs 300 can also be fixedly connected in other ways.

[0053] Please refer to Figure 3 and Figure 6Optionally, the cover plate body 100 comprises an integral bottom plate part 110, a surrounding plate part 120 and an annular folded edge part 130. The bottom plate part 110 is generally rectangular in structure, and has opposite inner and outer side plate faces 111 and 112. The bottom plate part 110 is provided with a wire harness mounting window 113 penetrating through the inner and outer side plate faces 111 and 112, which can be provided as a rectangular hole for the wire harness or pipe to pass through. The cover 200 is detachably mounted on the outer side plate face 112 of the bottom plate part 110, and can open or close the wire harness mounting window 113. The surrounding plate part 120 has one end connected to the peripheral edge of the inner side plate face 111, and the other end connected to the inner annular edge of the annular folded edge part 130. The annular folded edge part 130 is folded outward relative to the surrounding plate part 120, i.e., the bottom plate part 110 is located within the area surrounded by the surrounding plate part 120, while the annular folded edge part 130 is located outside the area surrounded by the surrounding plate part 120. In this way, the bottom plate part 110 and the surrounding plate part 120 cooperatively define a generally rectangular recess 101, with the inner side plate face 111 of the bottom plate part 110 as the bottom wall of the recess 101, and the inner peripheral surface of the surrounding plate part 120 as the peripheral wall of the recess 101.

[0054] Please refer to Figure 5 and Figure 6 Meanwhile, the arch-shaped parts 150 are formed on the bottom plate part 110, or in other words, on the bottom wall of the recess 101. The arch-shaped parts 150 protrude outward from the inner side plate face 111 to the outer side plate face 112, and have inner concave faces 151 and outer convex faces 152, which are both arc-shaped. The inner concave faces 151 are part of the inner side plate face 111, and the outer convex faces 152 are part of the outer side plate face 112. It should be understood that the number of arch-shaped parts 150 can be one or more, and the positions of the multiple arch-shaped parts 150 can be arranged as needed. For example, in the present embodiment, the number of arch-shaped parts 150 is two. For ease of description, the two arch-shaped parts 150 are respectively a first arch-shaped part 160 and a second arch-shaped part 170, which are arranged at intervals in the length direction of the cover plate body 100. The edge of the first arch-shaped part 160 has a spacing from the peripheral wall of the recess 101, and part of the edge of the second arch-shaped part 170 is in contact with the peripheral wall of the recess 101, while the remaining edge of the second arch-shaped part 170 has a spacing from the peripheral wall of the recess 101.

[0055] Please refer to Figure 6Further, the annular folded edge portion 130 is provided with a plurality of mounting lugs 140 arranged at intervals in the circumferential direction of the annular folded edge portion 130. Each mounting lug 140 is provided with at least one mounting through hole 141 for a screw or the like fastener to pass through. The mounting through hole 141 can be a round hole. It should be understood that the number of mounting lugs 140 on the annular folded edge portion 130 is set as required. For example, in the present embodiment, the number of mounting lugs 140 is set to 14, which are divided into four groups. The number of mounting lugs 140 in the first and second groups is 6, and the number of mounting lugs 140 in the third and fourth groups is 1. The mounting lugs 140 in the first group are arranged on one of the two long edges of the annular folded edge. The mounting lugs 140 in the second group are arranged on the other of the two long edges of the annular folded edge. The mounting lugs 140 in the second group are arranged on one of the two short edges of the annular folded edge. The mounting lugs 140 in the fourth group are arranged on the other of the two short edges of the annular folded edge. The motor controller cover plate and the motor controller box body can be fixedly connected by the fastener passing through the mounting through hole 141.

[0056] Optionally, the positioning protrusion 400 is located on the outer side surface 112 of the bottom plate portion 110. The shape of the positioning protrusion 400 is designed as required. The number of positioning protrusions 400 can be set to one or more. The number and design position of the positioning protrusions 400 are determined according to the number or position of the pipelines to be positioned, which can ensure better fixation of the pipelines. For example, in the present embodiment, the number of positioning protrusions 400 is set to two and arranged at intervals. One of the positioning protrusions 400 is located on the outer convex surface 152 of the second arcuate portion 170, and the other positioning protrusion 400 is close to the length edge of the bottom plate portion 110.

[0057] It should be noted that the positioning protrusion 400 and the cover plate body 100 are integrally formed by die casting, which is convenient for processing and manufacturing and has low cost. The structure of the positioning protrusion 400 and the cover plate body 100 is firm, and the positioning protrusion 400 is not easy to fall off from the cover plate body 100, so the failure rate is low and the service life is long.

[0058] Please refer to Figure 3In this embodiment, optionally, the plurality of reinforcing ribs 300 are distributed on the inner side plate surface 111, and at least part of the reinforcing ribs 300 are connected with the inner concave surface 151 of the first or second arched portion 160 or 170. The height of each reinforcing rib 300 is set as required, the height direction of the reinforcing rib 300 is the direction perpendicular to the inner side plate surface 111, and the height of the reinforcing rib 300 can also be understood as the distance between the first side 301 and the second side 302. In order to improve the overall structural rigidity, the height dimension of at least part of the reinforcing ribs 300 located on the arched portion 150 is greater than the height dimension of at least part of the reinforcing ribs 300 located outside the arched portion 150. For example, in this embodiment, the second side 302 of all the reinforcing ribs 300 is located in the same plane, that is, the dimension of all the reinforcing ribs 300 extending into the motor controller box body is the same, and due to the design of the arched portion 150, the processing space of the reinforcing rib 300 is increased, so that the height dimension of the reinforcing rib 300 located on the arched portion 150 is greater than the height dimension located outside the arched portion 150. The motor controller cover plate has high rigidity, high modal frequency, and good NVH optimization effect.

[0059] Please refer to Figure 7 It should be understood that when the inner concave surface 151 of the arched portion 150 is substantially arc-shaped, the depths of different positions on the inner concave surface 151 are different. Under the premise that the dimension of the reinforcing rib 300 extending into the box body is the same, the height dimension of the part of the reinforcing rib 300 located on the inner concave surface 151 is also gradually changed, and as the depth of the inner concave surface 151 increases, the height of the reinforcing rib 300 also increases, and the rigidity also increases.

[0060] Optionally, the number of reinforcing ribs 300 is set as required, and the distribution form of the plurality of reinforcing ribs 300 is set as required, which can meet the requirement of NVH modal optimization. For example, in some embodiments, at least part of the plurality of reinforcing ribs 300 are cross arranged to form a grid-shaped reinforcing structure, which can further improve the overall rigidity; or in some embodiments, at least part of the plurality of reinforcing ribs 300 are arranged in a ring structure; or in some embodiments, at least part of the plurality of reinforcing ribs 300 are arranged in a radial manner; or in some embodiments, the plurality of reinforcing ribs 300 simultaneously include a group of reinforcing ribs 300 arranged in a radial manner, reinforcing ribs 300 arranged in a ring structure, and reinforcing ribs 300 arranged in an inclined manner.

[0061] In this embodiment, the plurality of reinforcing ribs 300 simultaneously include a group of reinforcing ribs 300 arranged in a radial manner, reinforcing ribs 300 arranged in a ring structure, and reinforcing ribs 300 arranged in an inclined manner. In order to facilitate description, the plurality of reinforcing ribs 300 are divided into a first reinforcing unit 310, a second reinforcing unit 320, and a third reinforcing unit 330.

[0062] Please refer to Figure 3Optionally, the first reinforcing unit 310 comprises six first strip-shaped reinforcing ribs 311, which are arranged radially and whose one ends are gathered together, and the ends formed by the gathering of the six first strip-shaped reinforcing ribs 311 substantially coincide with the center of the first arc-shaped portion 160. The other ends of the six first strip-shaped reinforcing ribs 311 are connected with the groove wall of the groove 101. That is, the six first strip-shaped reinforcing ribs 311 correspond to the position of the first arc-shaped portion 160, wherein two first strip-shaped reinforcing ribs 311 are located in the area surrounded by the first arc-shaped portion 160, and the other four first strip-shaped reinforcing ribs 311 extend out of the first arc-shaped area and are connected with the groove wall of the groove 101.

[0063] Please refer to Figure 3 Optionally, the second reinforcing unit 320 comprises eight second strip-shaped reinforcing ribs 321, a first annular reinforcing rib 322 and a second annular reinforcing rib 323. The eight second strip-shaped reinforcing ribs 321 are arranged radially, the first annular reinforcing rib 322 is located between the first arc-shaped portion 160 and the second arc-shaped portion 170, and the second annular reinforcing rib 323 is sleeved outside the first annular reinforcing rib 322 and is connected with the inner concave surface 151 of the first arc-shaped portion 160 and the second arc-shaped portion 170. The first annular reinforcing rib 322 and the second annular reinforcing rib 323 can both be in a circular ring structure and are concentrically arranged. One ends of the eight second strip-shaped reinforcing ribs 321 are connected with the first annular reinforcing rib 322 and do not extend into the area surrounded by the first annular reinforcing rib 322, and the extension lines of the eight second strip-shaped reinforcing ribs 321 are gathered at the center of the first annular reinforcing rib 322. The other ends of two of the eight second strip-shaped reinforcing ribs 321 extend to be connected with the second annular reinforcing rib 323, and the other ends of the remaining six of the eight second strip-shaped reinforcing ribs 321 extend to be connected with the groove wall of the groove 101. Meanwhile, part of the second strip-shaped reinforcing ribs 321 are connected with the inner concave surface 151 of the first arc-shaped portion 160, part of the second strip-shaped reinforcing ribs 321 cross at least one first strip-shaped reinforcing rib 311, and the crossing position is on the inner concave surface 151 of the first arc-shaped portion 160; and part of the second strip-shaped reinforcing ribs 321 are connected with the inner concave surface 151 of the second arc-shaped portion 170.

[0064] Please refer to Figure 3Optionally, the third reinforcing unit 330 comprises eight third strip-shaped ribs 331, a fourth strip-shaped rib 332, a fifth strip-shaped rib 333, a third ring-shaped rib 334 and a fourth ring-shaped rib 335. The eight third strip-shaped ribs 331 are arranged radially, the third ring-shaped rib 334 and the fourth ring-shaped rib 335 are both located in the area surrounded by the outer edge of the second arched portion 170 and connected with the inner concave surface 151 of the second arched portion 170, and the third ring-shaped rib 334 and the fourth ring-shaped rib 335 can both be provided in a circular ring structure, the fourth ring-shaped rib 335 is sleeved outside the third ring-shaped rib 334, and the third ring-shaped rib 334, the fourth ring-shaped rib 335 and the second arched portion 170 are concentrically arranged. The center where the six first strip-shaped ribs 311 converge, the center of the first ring-shaped rib 322 and the center of the third ring-shaped rib 334 are located on the same straight line. One end of each of the eight third strip-shaped ribs 331 is connected with the third ring-shaped rib 334, and none of the eight third strip-shaped ribs 331 extends into the area surrounded by the third ring-shaped rib 334, and the extension lines of the eight third strip-shaped ribs 331 converge at the center of the third ring-shaped rib 334. The other end of one of the eight third strip-shaped ribs 331 extends to be connected with the second ring-shaped rib 323; the other seven of the eight third strip-shaped ribs 331 all cross the fourth ring-shaped rib 335, and the end portions thereof extend to be connected with the groove wall of the groove 101. In addition, at least one of the seven third strip-shaped ribs 331 crosses the second strip-shaped rib 321, and the crossing position of the two is located on the inner concave surface 151 of the second arched portion 170. The fourth strip-shaped rib 332 crosses one second strip-shaped rib 321 and two third strip-shaped ribs 331 at the same time, the fifth strip-shaped rib 333 crosses one second strip-shaped rib 321 and two third strip-shaped ribs 331 at the same time, and the fourth strip-shaped rib 332 and the fifth strip-shaped rib 333 are arranged at an angle in the width direction of the cover plate body 100. Both ends of the fourth strip-shaped rib 332 and the fifth strip-shaped rib 333 are connected with the groove wall of the groove 101, and at the same time, part of the fourth strip-shaped rib 332 and part of the fifth strip-shaped rib 333 are connected with the inner concave surface 151 of the second arched portion 170.

[0065] It should be understood that in other embodiments, the number of first strip-shaped ribs 311 and second strip-shaped ribs 321 is not limited to six, the number of third strip-shaped ribs 331 is not limited to eight, the number of fourth strip-shaped rib 332 and fifth strip-shaped rib 333 is not limited to one, and the number of first ring-shaped rib 322, second ring-shaped rib 323, third ring-shaped rib 334 and fourth ring-shaped rib 335 is not limited to one.

[0066] Please refer to Figure 3 and Figure 4In addition, in order to reduce the processing difficulty, the first strip-shaped rib 311, the second strip-shaped rib 321, the third strip-shaped rib 331, the fourth strip-shaped rib 332 and the fifth reinforcing rib 300 can all be provided in the form of two sub-ribs 303 matched, the two sub-ribs 303 have a spacing, while meeting the stiffness requirement, the weight of the overall structure can also be reduced. Moreover, the two sub-ribs 303 in each pair are arranged substantially in parallel, and each sub-rib 303 can be provided with a draft angle as required, which is beneficial to mold opening.

[0067] Please combine Figure 3 and Figure 4 It should be noted that, in order to facilitate pipeline layout, the avoiding grooves 304 are arranged on part of the reinforcing ribs 300. For example, in the embodiment, the avoiding grooves 304 are arranged on the first strip-shaped rib 311, the second strip-shaped rib 321, the third strip-shaped rib 331 and the fourth strip-shaped rib 332. Among them, taking a straight line determined by the centers of the first annular rib 322 and the second annular rib 323 as a boundary line, the plurality of avoiding grooves 304 are distributed on both sides of the boundary line, the plurality of avoiding grooves 304 on the same side are arranged at intervals on a straight line parallel to the boundary line, the plurality of avoiding grooves 304 are arranged more regularly, which is beneficial to processing. The pipeline can be embedded in the avoiding groove 304, and the pipeline is positioned by the avoiding groove 304, so that the position of the pipeline is stable and reliable; the avoiding groove 304 can also provide sufficient avoiding space for the pipeline, so as to avoid interference between the pipeline and other parts in the controller box body, which is beneficial to the assembly of the motor controller.

[0068] The motor controller cover plate provided in the embodiment includes a cover plate body 100, a positioning protrusion 400 and a plurality of reinforcing ribs 300 which are integrally formed by die casting, which is convenient to process and manufacture, low in cost, high in overall structural strength and long in service life. The cover plate body 100 is provided with at least one arched part 150, and at least part of the reinforcing ribs 300 are arranged on the inner concave surface 151 of the arched part 150. The inner concave surface 151 can provide more design space for the reinforcing ribs 300, so that the height dimension of the reinforcing ribs 300 can be set larger, thereby improving the stiffness of the reinforcing ribs 300 and further improving the stiffness of the cover plate body 100. According to the formula It can be known that

[0069] Under the premise that the mass m is the same, the stiffness k is proportional to the modal frequency f. When the stiffness k is improved, the modal frequency f is increased. In this way, by improving the stiffness of the motor controller cover plate, the modal frequency can be improved, so that the dynamic stiffness performance of the motor controller cover plate is optimized, and the radiation noise is reduced. Moreover, the pipelines distributed on the outside of the cover plate body 100 can be better positioned by the positioning protrusion 400, the position of the pipelines is more reliable, it is not easy to come loose and knot, and it is not easy to interfere with other parts, so that the assembly quality is high.

[0070] It should be noted that, according to experiments, the modal frequency of the existing motor controller cover is approximately 610 Hz, while the modal frequency of the motor controller cover provided in this application embodiment can be increased to approximately 700 Hz, which is better than the NVH modal optimization effect of the existing structure.

[0071] This embodiment also provides a motor assembly, which includes the motor controller cover mentioned in the above embodiment, and has at least the advantages of high rigidity, high modal frequency, good dynamic rigidity and good NVH performance.

[0072] This embodiment also provides a vehicle that includes the motor assembly mentioned in the above embodiments, which has at least the advantages of high stiffness, high modal frequency, good dynamic stiffness and good NVH performance.

[0073] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A motor controller cover, characterized in that, include: The cover plate body and multiple reinforcing ribs; the cover plate body is provided with an outwardly protruding arched portion, and the multiple reinforcing ribs are all provided on the cover plate body, and at least some of the multiple reinforcing ribs are located on the concave surface of the arched portion.

2. The motor controller cover plate according to claim 1, characterized in that: At least some of the multiple reinforcing ribs are arranged radially. Or / and, at least some of the multiple reinforcing ribs are configured as a ring structure.

3. The motor controller cover plate according to claim 1, characterized in that: At least some of the multiple reinforcing ribs are arranged in a crisscross pattern.

4. The motor controller cover plate according to claim 1, characterized in that: The multiple reinforcing ribs are all distributed on the same surface of the cover plate body.

5. The motor controller cover plate according to claim 1, characterized in that: The multiple reinforcing ribs include ring ribs and multiple strip ribs, the multiple strip ribs are arranged radially, and the ring ribs and the multiple strip ribs are intersected.

6. The motor controller cover plate according to claim 5, characterized in that: At least a portion of the annular reinforcement is connected to the arched portion.

7. The motor controller cover plate according to claim 5, characterized in that: At least some of the multiple strip bars are connected to the arched portion.

8. The motor controller cover plate according to claim 5, characterized in that: Some of the strip bars do not extend into the area enclosed by the annular reinforcement.

9. The motor controller cover plate according to claim 1, characterized in that: The number of arched sections is multiple.

10. The motor controller cover plate according to claim 1, characterized in that: At least some of the multiple reinforcing ribs are provided with clearance grooves.

11. The motor controller cover plate according to any one of claims 1-10, characterized in that: The height dimension of at least some of the reinforcing ribs located on the arch is greater than the height dimension of at least some of the reinforcing ribs located outside the arch.

12. The motor controller cover plate according to any one of claims 1-10, characterized in that: The cover plate body includes an inner side plate and an outer side plate that are arranged opposite to each other. A groove is provided on the inner side plate. The arched part is formed on the bottom wall of the groove. At least one end of some of the multiple reinforcing ribs is connected to the side wall of the groove.

13. The motor controller cover plate according to claim 12, characterized in that: The outer side plate is provided with positioning protrusions for positioning pipelines.

14. The motor controller cover plate according to any one of claims 1-10, characterized in that: The cover plate body and the multiple reinforcing ribs are configured as an integral structure.

15. The motor controller cover plate according to any one of claims 1-10, characterized in that: The thickness of the reinforcing rib gradually decreases from the first side of the reinforcing rib to the second side of the reinforcing rib, the first side being opposite to the second side and connected to the cover plate body.

16. A motor assembly, characterized in that, The motor assembly includes: The motor controller cover as described in claim 15.

17. A vehicle, characterized in that, The vehicles include: The motor assembly as claimed in claim 16.

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