Controller cover body, controller, electric drive assembly and electric device

Abstract

The present application provides a controller cover body, a controller, an electric drive assembly and an electric device. The controller cover body (20) comprises a main body part (21), and each side edge of the main body part (21) gradually protrudes toward the side of the main body part (21) in the thickness direction to the middle part of the main body part (21). The main body part (21) gradually protrudes toward one side in the thickness direction from the side edges to the middle part, such that the structural strength of the main body part (21) can be increased, and the modal frequency of the controller cover body (20) is improved, thereby reducing the probability of resonance generated by the main body part (21), and further reducing noises caused by vibration.

Description

Controller cover, controller, electric drive assembly and electric device

[0001] The present application claims priority to the Chinese patent application No. 202410660904.0, filed on May 24, 2024 in the China Patent Office and entitled "Controller cover, controller, electric drive assembly and electric device", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application belongs to the technical field of electric machines, and more specifically relates to a controller cover, a controller, an electric drive assembly and an electric device. BACKGROUND

[0003] Energy saving and emission reduction is the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their energy saving and environmental protection advantages.

[0004] The controller is a core component of the electric drive assembly. The controller usually includes a shell and a cover. The cover is arranged on the shell and forms an internal environment for accommodating electrical elements with the shell. However, due to the low modal frequency of the cover, vibration and noise are easily generated.

[0005] SUMMARY

[0006] The purpose of the embodiments of the present application is to provide a controller cover, a controller, an electric drive assembly and an electric device to solve the problem of low modal frequency of the controller cover, easy vibration and noise in the related art.

[0007] In a first aspect, the embodiments of the present application provide a controller cover, comprising a main body part, each side of the main body part to the middle part of the main body part is gradually convexly arranged to one side of the thickness direction of the main body part.

[0008] In the technical solution of the embodiments of the present application, the main body part is gradually convexly arranged to one side of the thickness direction from the side to the middle part, which can increase the structural strength of the main body part and improve the modal frequency of the controller cover, so as to reduce the probability of resonance of the main body part and further reduce the noise generated by vibration.

[0009] In some embodiments, the main body part has a width direction and a length direction, and any cross section of the main body part along the width direction is gradually convexly arranged from both ends to the middle, and any cross section of the main body part along the length direction is gradually convexly arranged from both ends to the middle.

[0010] Gradually convexly arranging the main body part from the edge to the middle part in the width direction and the length direction respectively can further improve the structural strength of the main body part and the modal frequency of the controller cover.

[0011] In some embodiments, the main body part has an arc-shaped cross section along the width direction; and the main body part has an arc-shaped cross section along the length direction.

[0012] The main body part has an arc-shaped cross section along the width direction and the length direction, which can simplify the structure and improve the structural strength of the main body part and the modal frequency of the controller cover.

[0013] In some embodiments, the arc height of the arc-shaped cross section of the main body part along the width direction ranges from 1mm to 50mm; and the arc height of the arc-shaped cross section of the main body part along the length direction ranges from 1mm to 50mm.

[0014] The arc height of the arc-shaped cross section of the main body part along the width direction and the length direction ranges from 1mm to 50mm, which can balance the size of the main body part and the structural strength of the main body part, and balance the cost of the controller cover and the amount of improvement of the modal frequency.

[0015] In some embodiments, the arc height of the arc-shaped cross section of the main body part along the width direction ranges from 5mm to 20mm; and the arc height of the arc-shaped cross section of the main body part along the length direction ranges from 5mm to 20mm.

[0016] The above size setting can better optimize the size and structural strength of the main body part, and better optimize the cost of the controller cover and the amount of improvement of the modal frequency.

[0017] In some embodiments, the main body part includes four triangular flat plates, each side of the main body part forms a bottom side of a triangle, and the top of the four flat plates intersects at the middle of the main body part to form a pyramid-shaped main body part.

[0018] The main body part is set to be pyramid-shaped, which is simple in structure, easy to manufacture, and can increase the structural strength of the main body part, improve the modal frequency of the controller cover, reduce the probability of resonance of the main body part, and further reduce the noise generated by vibration.

[0019] In some embodiments, the adjacent two flat plates are connected through a rounded corner part.

[0020] The adjacent two flat plates are connected through a rounded corner part, which facilitates processing and manufacturing, especially when the controller cover is made of plastic, which can reduce burrs generated during injection molding, and can also improve the structural strength of the connection between the adjacent two flat plates, further improving the modal frequency of the controller cover.

[0021] In some embodiments, the top of the main body part is in a circular curved surface shape, and the surface of the top is tangent to the corresponding surface of each rounded corner part and the corresponding surface of each flat plate.

[0022] The top of the main body part is provided in a circular curved surface shape to facilitate processing and manufacturing, in particular, the controller cover body is made of plastic, which can reduce burrs generated in the injection molding process, and can also improve the structural strength of the top of the main body part, further improving the modal frequency of the controller cover body.

[0023] In some embodiments, the controller cover body further comprises a frame surrounding the periphery of the main body part, and each side of the main body part is connected to the frame.

[0024] The frame is provided to facilitate application to the controller for convenient installation and use.

[0025] In some embodiments, at least one side of the main body part is provided with a reinforcing rib.

[0026] The reinforcing rib is provided on the side of the main body part to improve the structural strength of the main body part, further improving the modal frequency of the controller cover body.

[0027] In some embodiments, the reinforcing rib comprises a frame-shaped rib provided around the middle of the main body part and a connecting rib connecting the frame-shaped rib and the frame.

[0028] The frame-shaped rib is provided around the middle of the main body part, and the connecting rib is provided to connect the frame and the frame-shaped rib to stably support the frame-shaped rib, so that the frame-shaped rib stably supports the middle of the main body part, without increasing the weight and rigidity of the middle of the main body part, which can improve the modal frequency of the controller cover body and reduce the radiation noise of the controller cover body.

[0029] In some embodiments, the frame-shaped rib is provided in a rounded rectangular frame, and each side of the frame-shaped rib is provided with a connecting rib.

[0030] The frame-shaped rib is provided in a rounded rectangular frame, which can make the shape of the frame-shaped rib similar to the shape of the frame, and the connecting rib is provided on each side of the frame-shaped rib to connect the frame, which can make the frame better support the frame-shaped rib, and further stably support the middle of the main body part to improve the modal frequency of the controller cover body; and each corner of the frame-shaped rib is provided as a rounded corner to facilitate processing and manufacturing, in particular, the controller cover body is made of plastic, which facilitates injection molding, and can also improve the structural strength of the frame-shaped rib, which further stably supports the middle of the main body part to improve the modal frequency of the controller cover body.

[0031] In some embodiments, the length direction of the frame-shaped rib is parallel to the length direction of the main body part, and the ratio of the length of the frame-shaped rib to the length of the frame is in the range of 0.3-0.8.

[0032] The length direction of the frame-shaped rib is parallel to the length direction of the main body part, and the ratio of the length of the frame-shaped rib to the length of the frame is in the range of 0.3-0.8, which facilitates the design and manufacture of the frame-shaped rib, and can make the layout of the reinforcing ribs on the main body part more reasonable in the length direction, balance the mass and stiffness of the middle region of the main body part, and improve the modal frequency of the controller cover body.

[0033] In some embodiments, the width direction of the frame-shaped rib is parallel to the width direction of the main body part, and the ratio of the width of the frame-shaped rib to the width of the frame is in the range of 0.3-0.8.

[0034] The width direction of the frame-shaped rib is parallel to the width direction of the main body part, and the ratio of the width of the frame-shaped rib to the width of the frame is in the range of 0.3-0.8, which facilitates the design and manufacture of the frame-shaped rib, and can make the layout of the reinforcing ribs on the main body part more reasonable in the width direction, balance the mass and stiffness of the middle region of the main body part, and improve the modal frequency of the controller cover body.

[0035] In some embodiments, the number of connecting ribs is multiple, and the multiple connecting ribs are arranged in a divergent manner.

[0036] The connecting ribs are arranged in a divergent manner, which can more stably support the frame-shaped rib, and further support the middle part of the main body part, thereby improving the modal frequency of the controller cover body.

[0037] In some embodiments, each side of the frame-shaped rib is provided with multiple connecting ribs, and among the connecting ribs corresponding to each side of the frame-shaped rib: from the middle to the two ends of the corresponding side of the frame-shaped rib, the distance between adjacent two connecting ribs gradually increases.

[0038] Through the above structure, the connecting rib density is set to be larger at the middle of each side of the frame-shaped rib, and the connecting rib density is set to be smaller at the edge, which can more stably support the frame-shaped rib, improve the overall structural strength of the reinforcing rib, and further improve the structural strength of the main body part, thereby improving the modal frequency of the controller cover body.

[0039] In some embodiments, the density of the connecting rib located at the corner of the frame-shaped rib is less than or equal to the density of the connecting rib located at the side edge of the frame-shaped rib.

[0040] Since the corner of the frame-shaped rib is curved, its strength is relatively large, and accordingly, the connecting rib at the corner is set to be less, which can make the overall structural strength of the frame-shaped rib more balanced, to more stably support the middle part of the main body part, thereby improving the modal frequency of the controller cover body, and can reduce the number of connecting ribs, reduce the weight and material usage of the controller cover body, and reduce the cost.

[0041] In some embodiments, the density of the connecting rib located at the side edge in the width direction of the frame-shaped rib is greater than or equal to the density of the connecting rib located at the side edge in the length direction of the frame-shaped rib.

[0042] Since the length direction dimension of the main body part is greater than or equal to the width direction dimension, when the controller cover body is excited to vibrate, the vibration along the length direction is relatively large, the vibration is transmitted to the connecting ribs of the width direction side of the frame-shaped rib, and the density of the density direction connecting rib is set to be greater than or equal to the density of the length direction connecting rib, so that the strength of the width direction side of the frame-shaped rib is greater, so that the vibration along the length direction of the controller cover body can be better supported, thereby reducing the amplitude of the vibration along the length direction, reducing the vibration radiation noise, and improving the modal frequency of the controller cover body.

[0043] In some embodiments, the reinforcing rib further comprises an auxiliary rib connecting the plurality of connecting ribs.

[0044] The auxiliary rib is arranged to improve the structural strength of the reinforcing rib, to more stably support the main body part, to enhance the structural strength of the controller cover body, and to improve the modal frequency of the controller cover body.

[0045] In some embodiments, the reinforcing rib is arranged on the inner surface of the main body part.

[0046] The reinforcing rib is arranged on the inner surface of the main body part, which facilitates the arrangement of the reinforcing rib, reduces the occupied size after being applied to the controller, and facilitates the installation of the damping sound absorption plate.

[0047] In some embodiments, the frame is integrally formed with the main body part, or the frame is separately manufactured from the main body part.

[0048] The frame is integrally formed with the main body part, which facilitates the connection of the frame and the main body part, makes the connection of the frame and the main body part firm, and facilitates the integrated manufacturing of the controller cover body.

[0049] The frame is separately manufactured from the main body part, which can manufacture the main body part and the frame through multiple processes respectively, and then connect the main body part and the frame.

[0050] In some embodiments, the controller cover body further comprises a connecting frame extending from the inner side of the frame toward one side of the thickness direction, and the other end of the connecting frame is connected to each side of the main body part.

[0051] The connecting frame is arranged to form a stepped structure between the main body part and the frame, improve the structural strength of the frame, the connecting frame and the edge of the main body part, and improve the modal frequency of the controller cover body.

[0052] In some embodiments, the height of the connecting frame is less than or equal to 30 mm.

[0053] The height range of the connecting frame is less than or equal to 30 mm, so that the connecting frame has good structural strength, the main body part is more stably supported, and the overall thickness of the controller cover is small.

[0054] In some embodiments, the height range of the connecting frame is 2-20 mm.

[0055] The height range of the connecting frame is 2-20 mm, so that the connecting frame is convenient to process and manufacture, has good structural strength, and the overall thickness of the controller cover is small.

[0056] In some embodiments, the projection of the main body part in the thickness direction is rectangular.

[0057] The projection of the main body part in the thickness direction is rectangular, so that the edges of the main body part are rectangular, and the shape of the edges of the main body part is similar to the shape of the edges of the controller cover as a whole. In the application, the edges of the controller cover as a whole are fixed to the box body of the controller, so that the support strength of the edges of the main body part is enhanced, and the risk of resonance of the edge part of the main body part is reduced.

[0058] In some embodiments, the outer surface of the main body part is attached to a damping sound-absorbing plate.

[0059] The damping sound-absorbing plate is provided, so that the vibration radiation noise of the main body part is absorbed, the noise generated by the vibration of the controller cover is reduced, and good noise reduction is achieved.

[0060] In a third aspect, the embodiments of the present application provide a controller cover, comprising:

[0061] a main body part;

[0062] a frame surrounding the periphery of the main body part, and each side of the main body part being connected to the frame;

[0063] At least one side of the main body part is provided with a reinforcing rib, and the reinforcing rib comprises a frame-shaped rib surrounding the middle part of the main body part and a connecting rib connecting the frame-shaped rib and the frame.

[0064] In the technical scheme of the embodiments of the present application, the frame is provided to facilitate application to the controller and convenient installation and use. The frame-shaped rib is provided on the main body part, and the connecting rib is provided to connect the frame-shaped rib and the frame. Compared with the main body part with a planar plate or a grid-shaped rib structure, the modal frequency of the controller cover is improved, the probability of resonance of the main body part is reduced, and the noise generated by vibration is reduced.

[0065] In some embodiments, the frame-shaped rib is a round rectangular frame, and each side of the frame-shaped rib is provided with a connecting rib.

[0066] The frame-shaped ribs are arranged as rounded rectangular frames, which can make the shape of the frame-shaped ribs similar to the shape of the frame, and the connecting ribs are arranged on each side of the frame-shaped ribs to connect the frame, which can make the frame better support the frame-shaped ribs, and then more stably support the middle part of the main body, so as to improve the modal frequency of the controller cover body. In addition, the corners of the frame-shaped ribs are rounded to facilitate processing and manufacturing, especially when the controller cover body is made of plastic, which is convenient for injection molding. In addition, the structural strength of the frame-shaped ribs can be improved, and then the frame-shaped ribs can more stably support the middle part of the main body, so as to improve the modal frequency of the controller cover body.

[0067] In some embodiments, the length direction of the frame-shaped ribs is parallel to the length direction of the main body, and the ratio of the length of the frame-shaped ribs to the length of the frame is in the range of 0.3-0.8.

[0068] The length direction of the frame-shaped ribs is parallel to the length direction of the main body, and the ratio of the length of the frame-shaped ribs to the length of the frame is in the range of 0.3-0.8, which facilitates the design and manufacture of the frame-shaped ribs, and the layout of the reinforcing ribs on the main body in the length direction is more reasonable, balancing the reinforcing rib density and the modal frequency.

[0069] In some embodiments, the width direction of the frame-shaped ribs is parallel to the width direction of the main body, and the ratio of the width of the frame-shaped ribs to the width of the frame is in the range of 0.3-0.8.

[0070] The width direction of the frame-shaped ribs is parallel to the width direction of the main body, and the ratio of the width of the frame-shaped ribs to the width of the frame is in the range of 0.3-0.8, which facilitates the design and manufacture of the frame-shaped ribs, and the layout of the reinforcing ribs on the main body in the width direction is more reasonable, balancing the reinforcing rib density and the modal frequency.

[0071] In some embodiments, the connecting ribs are arranged in a diverging manner.

[0072] The connecting ribs are arranged in a diverging manner, which can more stably support the frame-shaped ribs, and then support the middle part of the main body, improving the modal frequency of the controller cover body.

[0073] In some embodiments, each side of the frame-shaped ribs is provided with a plurality of connecting ribs, and among the connecting ribs corresponding to each side of the frame-shaped ribs: from the middle to the two ends of the corresponding side of the frame-shaped ribs, the distance between adjacent two connecting ribs gradually increases.

[0074] Through the above structure, the density of the connecting ribs in the middle of each side of the frame-shaped ribs is set to be larger, and the density of the edge connecting ribs is set to be smaller, which can more stably support the frame-shaped ribs, improve the overall structural strength of the reinforcing ribs, and then improve the structural strength of the main body, and then improve the modal frequency of the controller cover body.

[0075] In some embodiments, the density of the connecting ribs at the corners of the frame-shaped ribs is less than or equal to the density of the connecting ribs at the sides of the frame-shaped ribs.

[0076] Since the corner of the frame-shaped rib is curved, the strength is relatively large, and the connecting rib is correspondingly arranged at the corner, so that the structural strength of the frame-shaped rib as a whole is more balanced, the middle part of the main body part is more stably supported, the modal frequency of the controller cover is further improved, the number of connecting ribs arranged can be reduced, the weight and material usage of the controller cover are reduced, and the cost is reduced.

[0077] In some embodiments, the density of the connecting rib of the side edge in the width direction of the frame-shaped rib is greater than or equal to the density of the connecting rib of the side edge in the length direction of the frame-shaped rib.

[0078] Since the length of the main body part is greater than or equal to the width, when the controller cover is excited to vibrate, the vibration in the length direction will be relatively large, and the vibration will be transmitted to the connecting rib of the side edge in the width direction of the frame-shaped rib. The density of the connecting rib in the density direction is greater than or equal to the density of the connecting rib in the length direction, so that the strength of the side edge in the width direction of the frame-shaped rib is greater, which can better withstand the vibration of the controller cover in the length direction, thereby reducing the amplitude of the vibration in the length direction, reducing the radiation noise of the vibration, and improving the modal frequency of the controller cover.

[0079] In some embodiments, the reinforcing rib further comprises an auxiliary rib connecting the plurality of connecting ribs.

[0080] The auxiliary rib is arranged to improve the structural strength of the reinforcing rib, to more stably support the main body part, to enhance the structural strength of the controller cover, and to improve the modal frequency of the controller cover.

[0081] In some embodiments, the reinforcing rib is arranged on the inner surface of the main body part.

[0082] The reinforcing rib is arranged on the inner surface of the main body part, which facilitates the arrangement of the reinforcing rib, reduces the occupied size when applied to the controller, and facilitates the installation of the damping sound absorption plate when the damping sound absorption plate is arranged on the outer surface of the main body part. In addition, the size of the damping sound absorption plate can be set larger to improve the sound absorption effect of the damping sound absorption plate.

[0083] In some embodiments, the frame is integrally formed with the main body part, or the frame is separately manufactured from the main body part.

[0084] The frame is integrally formed with the main body part, which facilitates the connection of the frame and the main body part, makes the connection of the frame and the main body part firm, and facilitates the integrated manufacturing of the controller cover.

[0085] The frame is separately manufactured from the main body part, which can manufacture the main body part and the frame through multiple processes respectively, and then connect the main body part and the frame.

[0086] In some embodiments, the controller cover further comprises a connecting frame, the connecting frame extending from the inner side of the side frame to the side of the thickness direction, and the other end of the connecting frame being connected to the side of the main body.

[0087] The connecting frame is arranged to form a stepped structure between the main body and the side frame, so as to improve the structural strength of the edge of the side frame, the connecting frame and the main body, and improve the modal frequency of the controller cover.

[0088] In some embodiments, the height of the connecting frame is less than or equal to 30mm.

[0089] The height of the connecting frame is less than or equal to 30mm, so that the connecting frame has good structural strength to more stably support the main body, and the overall thickness of the controller cover is small.

[0090] In some embodiments, the height of the connecting frame is 2mm-20mm.

[0091] The height of the connecting frame is 2mm-20mm, so as to facilitate the processing and manufacturing of the connecting frame, so that the connecting frame has good structural strength, and the overall thickness of the controller cover is small.

[0092] In some embodiments, the projection of the main body along the thickness direction is rectangular.

[0093] The projection of the main body along the thickness direction is rectangular, so that the edge of the main body is rectangular, and the shape of the edge of the main body is similar to the shape of the edge of the controller cover as a whole. In the application, the edge of the controller cover as a whole is fixed to the box body of the controller, which can enhance the support strength of the edge of the main body and reduce the risk of resonance of the edge of the main body.

[0094] In some embodiments, the main body is arranged in a flat plate shape.

[0095] The main body is arranged in a flat plate shape to simplify the structure and facilitate processing and manufacturing.

[0096] In some embodiments, the outer surface of the main body is attached with a damping sound absorption plate.

[0097] The damping sound absorption plate is arranged to absorb the vibration radiation noise of the main body, so as to reduce the noise generated by the vibration of the controller cover, and to have good noise reduction.

[0098] In a third aspect, the embodiments of the present application provide a controller comprising the controller cover as described in the above embodiments.

[0099] In a fourth aspect, the embodiments of the present application provide an electric drive assembly comprising the controller as described in the above embodiments.

[0100] In a fifth aspect, the embodiments of the present application provide an electric device, comprising the electric drive assembly as described in the above embodiments.

[0101] The above description is merely a summary of the technical solutions of the present application. In order to enable one of ordinary skill in the art to better understand the technical means of the present application and implement the same according to the contents of the specification, and in order to enable the above and other purposes, features and advantages of the present application to be more apparent, the following will specifically describe the embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0102] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or exemplary technical descriptions. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0103] Fig. 1 is a structural schematic diagram of a vehicle according to some embodiments of the present application;

[0104] Fig. 2 is a perspective structural schematic diagram of a controller cover according to some embodiments of the present application;

[0105] Fig. 3 is a top structural schematic diagram of the controller cover in Fig. 2;

[0106] Fig. 4 is a sectional structural schematic diagram along line A-A in Fig. 3;

[0107] Fig. 5 is a sectional structural schematic diagram along line B-B in Fig. 3;

[0108] Fig. 6 is a perspective structural schematic diagram of the controller cover from a bottom angle according to some embodiments of the present application;

[0109] Fig. 7 is a structural schematic diagram of the controller cover according to some embodiments of the present application;

[0110] Fig. 8 is a perspective structural schematic diagram of the controller cover according to some embodiments of the present application;

[0111] Fig. 9 is a top structural schematic diagram of the controller cover in Fig. 8;

[0112] Fig. 10 is a sectional structural schematic diagram along line C-C in Fig. 9;

[0113] Fig. 11 is a sectional structural schematic diagram along line D-D in Fig. 9;

[0114] Fig. 12 is a perspective structural schematic diagram of the controller cover from a bottom angle according to some embodiments of the present application;

[0115] Fig. 13 is a structural schematic diagram of the controller cover according to some embodiments of the present application;

[0116] Fig. 14 is a perspective view of the controller cover from one angle according to some embodiments of the present application;

[0117] Fig. 15 is a perspective view of the controller cover from another angle according to some embodiments of the present application;

[0118] Fig. 16 is a perspective view of the controller cover according to some embodiments of the present application.

[0119] In the drawings, the main reference signs refer to the following: 1000 - vehicle; 1001 - electric drive assembly; 1002 - battery; 100 - electric motor; 200 - controller; 20 - controller cover; 21 - main body; 211 - flat plate; 212 - rounded corner; 213 - top; 22 - frame; 221 - mounting hole; 23 - connecting frame; 24 - reinforcing rib; 241 - frame rib; 242 - connecting rib; 243 - auxiliary rib; 25 - damping and sound absorbing plate. Embodiments of the present application

[0120] In order to make the technical problems to be solved, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, and are not intended to limit the present application.

[0121] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the present specification and claims and the aforementioned description of the drawings herein, the terms "comprising" and "having" and any variations thereof, are intended to cover not exclusively inclusive.

[0122] In the description of embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0123] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined in any suitable manner with other embodiments.

[0124] In the description of the embodiments of the present application, the term "and / or" is merely an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are an "or" relationship.

[0125] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces). The meaning of "several" is one or more, unless otherwise explicitly specified.

[0126] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0127] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0128] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0129] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical term "adjacent" refers to being close in position. For example, there are three components A1, A2 and B, the distance between A1 and B is greater than the distance between A2 and B, then A2 is closer to B than A1, that is, A2 is adjacent to B, and it can also be said that B is adjacent to A2. For another example, when there are multiple C components, the multiple C components are C1, C2……C N , respectively, when one of the C components, such as C2, is closer to the B component than the other C components, then B is adjacent to C2, and it can also be said that C2 is adjacent to B.

[0130] The driving structure using a motor as a power source is generally referred to as an electric drive. Integrating one or more of the motor, a cooling system, a speed change mechanism, a controller and other components can form an electric drive assembly. The electric drive assembly is also referred to as an electric drive assembly or an electric drive device. The electric drive assembly is the main power device of an electric vehicle, and the electric drive assembly is used to convert the electric energy provided by the battery into mechanical energy to drive the electric vehicle to travel. At present, the electric drive assembly can be divided into a centralized electric drive assembly and a distributed electric drive assembly. The centralized electric drive assembly is to transmit the output torque of the motor to the left and right wheels of the electric vehicle through a transmission, a transmission shaft and other mechanical transmission devices to drive the electric vehicle to travel, while the distributed electric drive assembly usually includes at least two motors, and the output torque of each motor is transmitted to a wheel to drive the electric vehicle to travel, so that the distributed electric drive assembly can realize independent control of each wheel of the electric vehicle. Therefore, compared with the electric vehicle using the centralized electric drive assembly, the electric vehicle using the distributed electric drive assembly has better maneuverability, so that the distributed electric drive assembly is more and more favored by automobile manufacturers.

[0131] The motor is also referred to as an electric motor (Motor). The motor is generally composed of a rotor and a stator. The motor is a device for converting electric energy into mechanical energy. It uses the rotating magnetic field generated by the energized coil to act on the rotor to form a magnetic electric power rotating torque. The fixed part in the motor is called the stator, while the rotating part in the motor is called the rotor. The motor drives the rotor to rotate through the stator to realize the conversion of electric energy into mechanical energy, thereby outputting torque to the outside.

[0132] In some cases, the motor does not directly output power, but also in the shell of the electric drive assembly is provided with a transmission mechanism. As some need torque is larger, often in the shell is provided with a reducer, to enhance the torque, through the reducer output power; in some drive speed requirements are lower, will also use the reducer. For some need high speed, also need to speed up the speed. That is, some electric drive assembly will also be integrated transmission mechanism. Transmission mechanism, also known as gearbox, is used to change the speed and torque from the motor mechanism, it can be fixed or step change output shaft and input shaft transmission ratio. Transmission mechanism is composed of transmission components. Transmission components are mostly used ordinary gear transmission, also some use planetary gear transmission, there are using belt drive.

[0133] NVH is the English abbreviation of Noise, Vibration, and Harshness. It is a comprehensive measure of the quality of automobile manufacturing, which is the most direct and most superficial feeling of the car users. The NVH problem of the vehicle is one of the problems that international automobile manufacturers and parts enterprises are concerned about.

[0134] Modal frequency refers to the vibration frequency of the structure when it is vibrating, which is related to the stiffness, mass and boundary conditions of the structure. The first modal frequency refers to the lowest frequency of the structure when it is vibrating, also known as natural frequency or natural frequency. It is an important indicator of the vibration characteristics of the structure under certain boundary conditions. In the study of structural vibration, modal frequency is often directly referred to as the first modal frequency.

[0135] The closer the external excitation frequency of the structure is to the modal frequency, the more likely the structure is to resonate, and the structure will also produce a lot of noise when it resonates.

[0136] The controller is a control device that controls the motor to work in the set direction, speed, angle, and response time by active work. In electric vehicles, the function of the controller is to convert the electrical energy stored in the power battery into the electrical energy required by the driving motor according to the gear, throttle, brake and other instructions, so as to control the starting, running, speed, climbing force and other driving states of the electric vehicle. In addition, the controller can also help the electric vehicle brake and store part of the braking energy in the power battery.

[0137] The controller is one of the key components of the electric vehicle, and its performance directly affects the power performance, economy and driving safety of the electric vehicle. The controller usually includes a shell and a cover, the cover is arranged on the shell and forms an internal environment with the shell for accommodating electrical elements. Since the vibration frequency of components such as motors, gear mechanisms and the like in the electric vehicle is low, the excitation frequency of the cover is low, if the modal frequency of the cover is low, the cover is easy to be excited by the vibration of the motor, gear mechanism and the like to produce resonance and noise. By improving the modal frequency of the cover, the probability of resonance of the cover can be effectively reduced, and the noise generated by vibration can be reduced. However, the current controller cover is usually a large flat plate, and the modal frequency of such cover is low, which is easy to cause vibration and generate noise.

[0138] Based on the above considerations, in order to solve the problem that the modal frequency of the controller cover is low and easy to vibrate and generate noise, an embodiment of the present application provides a controller cover, which sets the square main body part of the cover to a structure that is convex outward from each side to the middle, thereby improving the modal frequency of the cover to reduce the radiation noise during use of the controller cover.

[0139] The controller cover disclosed in the embodiments of the present application can be used in a controller, and the controller can be applied to an electric drive assembly, which can serve as a power source of an electric device, such as an electric tool, an electric bicycle, an electric vehicle, a ship, a spacecraft and the like. The spacecraft can include an airplane, a rocket, a space shuttle and a spacecraft, etc. Of course, the controller can also be directly applied to an electric device.

[0140] For convenience of description, an embodiment of the present application provides an electric device, which is taken as an example of a vehicle 1000.

[0141] Please refer to FIG. 1, which is a structural schematic diagram of a vehicle 1000 provided by some embodiments of the present application. The vehicle 1000 can be a fuel automobile, a gas automobile, or a new energy automobile, which can be a pure electric automobile, a hybrid automobile, or a range extended automobile, etc. The vehicle 1000 is internally provided with an electric drive assembly 1001, which can be arranged at the bottom, the head, or the tail of the vehicle 1000. The electric drive assembly 1001 can be used to provide power for the vehicle 1000. The vehicle 1000 can further include a battery 1002, which can be arranged at the bottom, the head, or the tail of the vehicle 1000, or can be arranged at other positions of the vehicle 1000. The battery 1002 can be used to supply power for the vehicle 1000, for example, the battery 1002 can serve as an operating power supply for the vehicle 1000. The electric drive assembly 1001 includes a controller 200 and a motor 100, the controller 200 is used to control the battery 1002 to supply power for the motor 100, and to control the start, speed change, and stop of the motor 100. The controller 200 and the motor 100 can be integrated, for example, the controller 200 is installed on the motor 100, and the controller 200 is supported by the shell of the motor 100. Of course, the motor 100 and the controller 200 can also be arranged separately. Of course, the electric drive assembly 1001 can further include other structures, such as a transmission, etc.

[0142] Please refer to FIG. 1, FIG. 2, and FIG. 8, some embodiments of the present application provide a controller cover 20, which includes a main body part 21. The sides of the main body part 21 gradually protrude towards one side of the thickness direction of the main body part 21 from the middle part of the main body part 21.

[0143] The controller cover 20 refers to a plate-shaped or shell-shaped structural member installed on the shell of the controller 200 to seal the controller 200. The controller cover 20 is usually made of plastic to reduce cost and facilitate processing. Of course, the controller cover 20 can also be made of other materials, such as metal, glass, wood, etc. The shell of the controller 200 refers to a shell structure having an internal space to accommodate and protect the internal components of the controller 200.

[0144] The controller cover 20 has a length direction, a width direction, and a thickness direction, as shown in FIG. 5 and FIG. 9, X is the length direction, Y is the width direction, and Z is the thickness direction.

[0145] The main body part 21 refers to the main area or main part of the controller cover 20. The length direction of the main body part 21 is consistent with the length direction X of the controller cover 20, the width direction of the main body part 21 is consistent with the width direction Y of the controller cover 20, and the thickness direction of the main body part 21 is consistent with the thickness direction Z of the controller cover 20.

[0146] The side edge of the main body part 21 refers to each side edge of the periphery of the main body part 21. The middle part of the main body part 21 refers to a part of the main body part 21, which is located in the middle region of the length direction X of the main body part 21 and in the middle region of the width direction Y of the main body part 21.

[0147] The side edge of the main body part 21 gradually protrudes to one side of the thickness direction Z of the main body part 21 from the middle part of the main body part 21, so that from any position of the edge of the main body part 21 to the middle position of the main body part 21, it gradually protrudes to one side of the thickness direction Z of the main body part 21. This structure can improve the structural strength of the main body part 21, and further improve the modal frequency of the controller cover 20. The improvement of the modal frequency is applied to the controller 200 of the motor 100 or the electric drive assembly 1001, and resonance is less likely to occur, and the amplitude of vibration is also greatly reduced, thereby reducing vibration noise.

[0148] Since the controller cover 20 is connected with the shell of the controller 200 in application, and other components of the controller 200 are installed inside the shell, the side edge of the main body part 21 gradually protrudes to one side of the main body part 21 from the middle part of the main body part 21, which is mainly protruding the middle part of the main body part 21 to the side away from the shell of the controller 200. That is, the main body part 21 is mainly protruding to the side where the outer surface of the controller cover 20 is located, so as to reduce the space occupied by the controller cover 20 in the shell of the controller 200, thereby avoiding the influence of the controller cover 20 on the installation of other components of the controller 200 in the shell to some extent. Of course, in some embodiments, when there is enough space in the shell of the controller 200, the middle part of the main body part 21 can also be protruding to the side where the inner surface of the controller cover 20 is located.

[0149] The inner surface refers to the side close to the inside of the controller 200 when the controller cover 20 is applied to the controller 200. The outer surface refers to the side of the controller cover 20 away from the inner surface.

[0150] In the technical scheme of the embodiment of the present application, the main body part 21 is gradually protruding to one side of the thickness direction Z from the side edge to the middle part, which can increase the structural strength of the main body part 21 and improve the modal frequency of the controller cover 20, so as to reduce the probability of resonance of the main body part 21, and further reduce the noise caused by vibration.

[0151] In some embodiments, the controller cover 20 further comprises a frame 22 surrounding the periphery of the main body part 21, and the side edge of the main body part 21 is connected with the frame 22.

[0152] The frame 22 refers to the circumferential side of the main body 21, and is used to be fixedly connected with the shell of the controller 200, so that the controller cover 20 can be capped on the shell of the controller 200. The length direction of the frame 22 is consistent with the length direction X of the controller cover 20, the width direction of the frame 22 is consistent with the width direction Y of the controller cover 20, and the thickness direction of the frame 22 is consistent with the thickness direction Z of the controller cover 20. The mounting hole 221 can be provided on the frame 22, so as to be mounted on the shell of the controller 200 by means of fasteners such as bolts. Of course, the frame 22 can also be bonded or adhered to the shell of the controller 200.

[0153] The circumferential side of the main body 21 is connected with the frame 22, so as to support the main body 21 through the frame 22.

[0154] The frame 22 is provided so as to be applied to the controller and facilitate installation and use.

[0155] In some embodiments, the projection of the main body 21 along the thickness direction Z is rectangular.

[0156] The projection of the main body 21 along the thickness direction Z is rectangular, which means that the projection of the main body 21 along the thickness direction Z is rectangular.

[0157] The projection of the main body 21 along the thickness direction Z is rectangular, so that the edge or the periphery of the main body 21 is formed in a rectangular shape. This can make the distance from the overall edge of the controller cover 20 to the main body 21 smaller, and in particular, after being fixed to the shell of the controller 200, it is not easy to vibrate, so as to support the main body 21. After the overall edge of the controller cover 20 is connected with the shell of the controller 200, the distance from each side of the main body 21 to the shell of the controller 200 is smaller, and the distance from each part of the edge of the main body 21 to the shell of the controller 200 is consistent, so that the support force of the periphery of the main body 21 by the shell of the controller 200 is more balanced, thereby more stably supporting the main body 21, reducing the risk of resonance of the main body 21 caused by external excitation, reducing the amplitude of vibration of the main body 21, reducing the vibration noise of the main body 21, and further reducing the vibration noise of the controller cover 20.

[0158] The projection of the main body 21 along the thickness direction Z is rectangular, so that the edge of the main body 21 is formed in a rectangular shape, and thus the shape of the edge of the main body 21 is similar to that of the overall edge of the controller cover 20. In the application, the overall edge of the controller cover 20 is fixed with the shell of the controller 200, which can enhance the support strength of the edge of the main body 21 and reduce the risk of resonance of the edge of the main body 21.

[0159] In some embodiments, the controller cover 20 further comprises a frame 22, and when the projection of the main body part 21 along the thickness direction Z is in a rectangular shape, the edge of the main body part 21 is connected with the frame 22, so as to facilitate the connection of the edge of the main body part 21 with the frame 22, and the width of the frame 22 can be set to be relatively small, i.e. the distance from the outer side of the frame 22 to the main body part 21 is small, which makes the frame 22 have better structural strength under the same thickness, and in particular, after being fixed to the shell of the controller 200, the frame 22 is not easy to vibrate, so as to support the main body part 21.

[0160] Referring to FIGS. 2-5, in some embodiments, the main body part 21 is gradually convex from both ends to the middle along any cross section in the width direction Y, and the main body part 21 is gradually convex from both ends to the middle along any cross section in the length direction X.

[0161] The main body part 21 is gradually convex from both ends to the middle along any cross section in the width direction Y, i.e. the main body part 21 is gradually convex from the edge of both ends to the middle in the width direction Y, so that the main body part 21 is also gradually convex from both ends to the middle along any cross section in the width direction Y.

[0162] The main body part 21 is gradually convex from both ends to the middle along any cross section in the length direction X, i.e. the main body part 21 is gradually convex from the edge of both ends to the middle in the length direction X, so that the main body part 21 is also gradually convex from both ends to the middle along any cross section in the length direction X.

[0163] The main body part 21 is gradually convex from both ends to the middle along any cross section in the width direction Y and any cross section in the length direction X, which can further improve the structural strength of the main body part 21 and the modal frequency of the controller cover 20. In addition, it is also convenient for processing and manufacturing, especially when the controller cover 20 is manufactured by injection molding, which can facilitate mold opening.

[0164] Referring to FIGS. 2-5, in some embodiments, the cross section of the main body part 21 in the width direction Y is arc-shaped; and the cross section of the main body part 21 in the length direction X is arc-shaped.

[0165] The cross section of the main body part 21 in the width direction Y is arc-shaped, which not only facilitates the shape design of the main body part 21 convex in the width direction Y, but also makes the main body part 21 have higher structural strength in the width direction Y, so as to improve the modal frequency of the controller cover 20.

[0166] The cross section of the main body part 21 in the length direction X is arc-shaped, which not only facilitates the shape design of the main body part 21 convex in the length direction X, but also makes the main body part 21 have higher structural strength in the length direction X, so as to improve the modal frequency of the controller cover 20.

[0167] The arc-shaped cross section of the main body 21 along the width direction Y and the length direction X can simplify the structure and improve the structural strength of the main body 21 and the modal frequency of the controller cover 20.

[0168] Referring to FIGS. 2-5, in some embodiments, the arc height d1 of the arc-shaped cross section of the main body 21 along the width direction Y ranges from 1 mm to 50 mm.

[0169] The arc height d1 of the arc-shaped cross section of the main body 21 along the width direction Y ranges from 1 mm to 50 mm, such as 1 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, etc., which can make the overall thickness of the controller cover 20 relatively small, thereby reducing the weight and cost of the controller cover 20, and improving the structural strength of the main body 21 along the width direction Y, thereby improving the modal frequency of the controller cover 20 and reducing the vibration noise generated by the controller cover 20.

[0170] The arc height d1 of the arc-shaped cross section of the main body 21 along the width direction Y ranges from 1 mm to 50 mm, which can balance the size of the main body 21 and the structural strength of the main body 21, thereby balancing the cost and the amount of improvement of the modal frequency of the controller cover 20.

[0171] Referring to FIGS. 2-5, in some embodiments, the arc height d2 of the arc-shaped cross section of the main body 21 along the length direction X ranges from 1 mm to 50 mm.

[0172] The arc height d2 of the arc-shaped cross section of the main body 21 along the length direction X ranges from 1 mm to 50 mm, such as 1 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, etc., which can make the overall thickness of the controller cover 20 relatively small, thereby reducing the weight and cost of the controller cover 20, and improving the structural strength of the main body 21 along the length direction X, thereby balancing the mass and stiffness of the main body 21 along the length direction X, improving the modal frequency of the controller cover 20, and reducing the vibration noise generated by the controller cover 20.

[0173] The arc height d2 of the arc-shaped cross section of the main body 21 along the length direction X ranges from 1 mm to 50 mm, which can balance the size of the main body 21 and the structural strength of the main body 21, thereby balancing the cost and the amount of improvement of the modal frequency of the controller cover 20.

[0174] In some embodiments, the arc height of the arc-shaped section of the main body 21 along the width direction Y and the length direction X is respectively set to be in the range of 1mm-50mm, which can better balance the size of the main body 21 and the structural strength of the main body 21, and further better balance the cost of the controller cover body 20 and the amount of modal frequency improvement.

[0175] Please refer to FIGS. 2-5, in some embodiments, the arc height d1 of the arc-shaped section of the main body 21 along the width direction Y is in the range of 5mm-20mm.

[0176] The arc height d1 of the arc-shaped section of the main body 21 along the width direction Y is set to be in the range of 5mm-20mm, such as 5mm, 8mm, 10mm, 12mm, 15mm, 18mm, 20mm, etc., which can further make the overall thickness size of the controller cover body 20 relatively small, so as to reduce the weight of the controller cover body 20, reduce the cost, and make the main body 21 have good structural strength in the width direction Y, balance the mass and stiffness of the main body 21 in the length direction X, thereby improving the modal frequency of the controller cover body 20 and reducing the vibration noise generated by the controller 200 cover.

[0177] The arc height d1 of the arc-shaped section of the main body 21 along the width direction Y is set to be in the range of 5mm-20mm, which can better optimize the size and structural strength of the main body 21, and better optimize the cost and modal frequency improvement amount of the controller cover body 20.

[0178] Please refer to FIGS. 2-5, in some embodiments, the arc height d2 of the arc-shaped section of the main body 21 along the length direction X is in the range of 5mm-20mm.

[0179] The arc height d2 of the arc-shaped section of the main body 21 along the length direction X is set to be in the range of 5mm-20mm, such as 5mm, 8mm, 10mm, 12mm, 15mm, 18mm, 20mm, etc., which can further make the overall thickness size of the controller cover body 20 relatively small, so as to reduce the weight of the controller cover body 20, reduce the cost, and make the main body 21 have good structural strength in the length direction X, thereby improving the modal frequency of the controller cover body 20 and reducing the vibration noise generated by the controller 200 cover.

[0180] The arc height d2 of the arc-shaped section of the main body 21 along the length direction X is set to be in the range of 5mm-20mm, which can better optimize the size and structural strength of the main body 21, and better optimize the cost and modal frequency improvement amount of the controller cover body 20.

[0181] In some embodiments, the arc height of the arc-shaped cross section of the main body 21 along the width direction Y and the length direction X is respectively set to 5mm-20mm, which can better optimize the size and structural strength of the main body 21, so as to better optimize the cost and the amount of modal frequency of the controller cover 20.

[0182] Please refer to FIGS. 8-11. In some embodiments, the main body 21 includes four triangular plates 211, and each side of the main body 21 forms a bottom side of a triangle. The top of the four plates 211 intersects at the middle of the main body 21, so that the main body 21 forms a pyramid shape.

[0183] The pyramid shape refers to the four triangles sharing a common top, and the four triangles are connected in sequence to form a structure shape with a rectangular bottom.

[0184] When the main body 21 is arranged in a pyramid shape, the four plates 211 forming the four sides of the pyramid are all triangular, which can stabilize the structural strength of each side of the main body 21. The structural strength of the main body 21 is higher in the height direction of the pyramid, i.e., the thickness direction Z of the controller cover 20. This can greatly improve the modal frequency of the controller cover 20.

[0185] Arranging the main body 21 in a pyramid shape is simple in structure, easy to manufacture, and can increase the structural strength of the main body 21 and improve the modal frequency of the controller cover 20, thereby reducing the probability of resonance of the main body 21 and further reducing the noise generated by vibration.

[0186] Please refer to FIGS. 8-11. In some embodiments, two adjacent plates 211 are connected by a rounded corner 212.

[0187] The rounded corner 212 refers to a plate-shaped part with a circular arc shape on the inner and outer surfaces. When two adjacent plates 211 are connected by a rounded corner 212, one side of the plate 211 is connected to one side of the rounded corner 212, and the other side of the rounded corner 212 is connected to the other plate 211. The outer surface of the rounded corner 212 is tangent to the outer surfaces of the two plates 211, and the inner surface of the rounded corner 212 is tangent to the inner surfaces of the two plates 211. This structure can reduce the edges, facilitate processing and manufacturing, and improve the structural strength of the connection between the two adjacent plates 211, thereby improving the modal frequency of the controller cover 20.

[0188] Connecting two adjacent plates 211 by a rounded corner 212 facilitates processing and manufacturing, especially when the controller cover 20 is made of plastic. This can reduce burrs generated during the injection molding process and further improve the structural strength of the connection between the two adjacent plates 211, thereby further improving the modal frequency of the controller cover 20.

[0189] Of course, in some embodiments, two adjacent flat plates 211 can also be directly connected, so as to form an edge at the connection position thereof, for facilitating the design.

[0190] Please refer to FIGS. 8-11. In some embodiments, the top portion 213 of the main body portion 21 is in a circular curved surface shape, and the surface of the top portion 213 is tangent to the corresponding surface of each of the rounded portions 212 and the corresponding surface of each of the flat plates 211.

[0191] The top portion 213 of the main body portion 21 being in a circular curved surface shape means that the surface of the top portion 213 is in a circular curved surface shape, such as the outer surface of the top portion 213 being in a circular curved surface shape and the inner surface of the top portion 213 being in a circular curved surface shape. The top portion 213 of the main body portion 21 refers to the top portion 213 of the pyramid of the pyramid-shaped main body portion 21.

[0192] The surface of the top portion 213 being tangent to the corresponding surface of each of the rounded portions 212 and the corresponding surface of each of the flat plates 211 means that the outer surface of the top portion 213 is tangent to the outer surface of each of the rounded portions 212 and the outer surface of each of the flat plates 211, and the inner surface of the top portion 213 is tangent to the inner surface of each of the rounded portions 212 and the inner surface of each of the flat plates 211. This not only makes the main body portion 21 as a whole form a shell structure, but also facilitates the processing and manufacturing, and can reduce the risk of the top portion 213 of the main body portion 21 scratching people or other objects.

[0193] The top portion 213 of the main body portion 21 is set to be in a circular curved surface shape to facilitate the processing and manufacturing, especially when the controller cover 20 is made of plastic. This can reduce burrs generated during the injection molding process, and can also improve the structural strength of the top portion 213 of the main body portion 21, further improving the modal frequency of the controller cover 20.

[0194] Please refer to FIGS. 6 and 12. In some embodiments, at least one side surface of the main body portion 21 is provided with a reinforcing rib 24.

[0195] The side surface of the main body portion 21 refers to the outer surface of the main body portion 21 or the inner surface of the main body portion 21.

[0196] The reinforcing rib 24 refers to a rib structure or a rib strip structure provided on the main body portion 21.

[0197] The at least one side surface of the main body portion 21 being provided with the reinforcing rib 24 means that the reinforcing rib 24 is provided on the outer surface of the main body portion 21, or the reinforcing rib 24 is provided on the inner surface of the main body portion 21, or the reinforcing rib 24 is provided on both the outer surface and the inner surface of the main body portion 21.

[0198] The reinforcing rib 24 provided on the side surface of the main body portion 21 can improve the structural strength of the main body portion 21, further improving the modal frequency of the controller cover 20.

[0199] Current improvement of the modal frequency of the plate member is mostly to set a grid-shaped rib on the plate member, especially to set a rib in the middle of the plate member to enhance the structural strength of the plate member, thereby improving the modal frequency of the plate member. However, such rib setting greatly increases the weight of the middle of the plate member, not only increasing the cost, but also still causing resonance in the middle of the plate member, and the improvement effect of the modal frequency is not obvious.

[0200] Please refer to FIGS. 6 and 12, in some embodiments, the reinforcing rib 24 includes a frame-shaped rib 241 arranged around the middle of the main body part 21 and a connecting rib 242 connecting the frame-shaped rib 241 and the frame 22.

[0201] The frame-shaped rib 241 refers to a rib or rib structure arranged in a frame shape or ring shape.

[0202] The connecting rib 242 refers to a rib or rib structure connecting the frame-shaped rib 241 and the frame 22.

[0203] The connecting rib 242 is arranged to stably support the frame-shaped rib 241, so that the frame-shaped rib 241 is more stable. The frame-shaped rib 241 is arranged around the middle of the main body part 21, so that the middle of the main body part 21 is stabilized by the frame-shaped rib 241 without arranging a rib in the middle of the main body part 21, thereby reducing the risk and probability of resonance in the middle of the main body part 21, and without increasing the weight of the middle of the main body part 21, so as to greatly improve the modal frequency of the controller cover 20 and improve the vibration noise of the controller cover 20.

[0204] The frame-shaped rib 241 is arranged around the middle of the main body part 21, and the connecting rib 242 is arranged to connect the frame 22 and the frame-shaped rib 241, so as to stably support the frame-shaped rib 241, and the frame-shaped rib 241 stably supports the middle of the main body part 21 without increasing the weight and rigidity of the middle of the main body part 21, so as to improve the modal frequency of the controller cover 20 and reduce the radiation noise of the controller cover 20.

[0205] Please refer to FIGS. 14 and 15, some embodiments of the present application provide a controller cover 20 including a main body part 21 and a frame 22. The frame 22 surrounds the periphery of the main body part 21, and each side of the main body part 21 is connected with the frame 22; at least one side of the main body part 21 is provided with a reinforcing rib 24, and the reinforcing rib 24 includes a frame-shaped rib 241 arranged around the middle of the main body part 21 and a connecting rib 242 connecting the frame-shaped rib 241 and the frame 22.

[0206] The controller cover 20 refers to a plate-like or shell-like structure installed on the housing of the controller 200 to seal the controller 200. The controller cover 20 is usually made of plastic to reduce cost and facilitate processing. Of course, the controller cover 20 can also be made of other materials, such as metal, glass, wood, etc.

[0207] The controller cover 20 has a length direction X, a width direction Y, and a thickness direction Z, as shown in FIGS. 9 and 5, X is the length direction, Y is the width direction, and Z is the thickness direction.

[0208] The main body part 21 refers to a structure as the main area or main part in the controller cover 20. The length direction of the main body part 21 is consistent with the length direction X of the controller cover 20, the width direction of the main body part 21 is consistent with the width direction Y of the controller cover 20, and the thickness direction of the main body part 21 is consistent with the thickness direction Z of the controller cover 20.

[0209] The frame 22 refers to a frame-like structure surrounding the periphery of the main body part 21 and used to be fixedly connected with the housing of the controller 200 so that the controller cover 20 can be sealed on the housing of the controller 200. The length direction of the frame 22 is consistent with the length direction X of the controller cover 20, the width direction of the frame 22 is consistent with the width direction Y of the controller cover 20, and the thickness direction of the frame 22 is consistent with the thickness direction Z of the controller cover 20.

[0210] The periphery of the main body part 21 is connected with the frame 22 to support the main body part 21 through the frame 22.

[0211] Each side edge of the main body part 21 refers to each side edge of the periphery of the main body part 21. The middle part of the main body part 21 refers to a part of the main body part 21, which is located in the middle area of the length direction X of the main body part 21 and in the middle area of the width direction Y of the main body part 21.

[0212] The inner surface refers to the side of the controller cover 20 close to the inside of the controller 200 when applied to the controller 200. The outer surface refers to the side of the controller cover 20 away from the inner surface.

[0213] The side surface of the main body part 21 refers to the outer surface of the main body part 21 or the inner surface of the main body part 21.

[0214] The reinforcing rib 24 refers to a rib or bar structure provided on the main body part 21.

[0215] The reinforcing ribs 24 on at least one side of the main body 21 refer to reinforcing ribs 24 arranged on the outer surface of the main body 21, or reinforcing ribs 24 arranged on the inner surface of the main body 21, or reinforcing ribs 24 arranged on both the outer surface and the inner surface of the main body 21.

[0216] The frame-shaped ribs 241 refer to rib structures arranged in a frame shape or a ring shape.

[0217] The connecting ribs 242 refer to rib structures connecting the frame-shaped ribs 241 and the frame 22.

[0218] The connecting ribs 242 are arranged to stabilize and support the frame-shaped ribs 241, so that the frame-shaped ribs 241 are more stable. The frame-shaped ribs 241 are arranged around the middle part of the main body 21, so that in the case that no rib structure is arranged in the middle part of the main body 21, the middle part of the main body 21 is stabilized by the frame-shaped ribs 241, so as to reduce the risk and probability of resonance of the middle part of the main body 21, and the weight of the middle part of the main body 21 is not increased, so as to greatly improve the modal frequency of the controller cover 20 and improve the vibration noise of the controller cover 20.

[0219] In addition, in the case that the reinforcing ribs 24 on the main body 21 include the frame-shaped ribs 241 and the connecting ribs 242, the main body 21 can be arranged in a flat plate shape, so as to facilitate the processing and manufacturing of the main body 21, and facilitate the processing and manufacturing of the controller cover 20.

[0220] In the technical scheme of the embodiment, the frame 22 is arranged to facilitate application to the controller 200 and facilitate installation and use. The frame-shaped ribs 241 are arranged on the main body 21, and the connecting ribs 242 are arranged to connect the frame-shaped ribs 241 and the frame 22. Compared with a flat plate or a main body with a grid-shaped rib structure, the modal frequency of the controller cover 20 can be improved, so as to reduce the probability of resonance of the main body 21, and further reduce the noise generated by vibration.

[0221] Please refer to FIG. 14 and FIG. 15. In some embodiments, the projection of the main body 21 along the thickness direction Z is arranged in a rectangular shape.

[0222] The projection of the main body 21 along the thickness direction Z is arranged in a rectangular shape, which means that the projection of the main body 21 along the thickness direction Z is in a rectangular shape.

[0223] The projection of the main body portion 21 along the thickness direction Z is set to be rectangular, and the edges of the main body portion 21 form a rectangle. The edges of the main body portion 21 are connected to the frame 22, which facilitates the connection of the edges of the main body portion 21 to the frame 22. The width of the frame 22 can be set to be relatively small, so that the frame 22 has good structural strength to support the main body portion 21. After the frame 22 is connected to the housing of the controller 200, the sides of the main body portion 21 are close to the housing of the controller 200, thereby more stably supporting the main body portion 21, reducing the risk of resonance of the main body portion 21 caused by external excitation, reducing the amplitude of vibration of the main body portion 21, reducing the vibration noise of the main body portion 21, and further reducing the vibration noise of the controller cover 20.

[0224] The projection of the main body portion 21 along the thickness direction Z is set to be rectangular, and the edges of the main body portion 21 form a rectangle. The edges of the main body portion 21 are connected to the frame 22, which facilitates the connection of the edges of the main body portion 21 to the frame 22. The width of the frame 22 can be set to be relatively small, so that the frame 22 has good structural strength to support the main body portion 21. After the frame 22 is connected to the housing of the controller 200, the sides of the main body portion 21 are close to the housing of the controller 200, thereby more stably supporting the main body portion 21, reducing the risk of resonance of the main body portion 21 caused by external excitation, reducing the amplitude of vibration of the main body portion 21, reducing the vibration noise of the main body portion 21, and further reducing the vibration noise of the controller cover 20.

[0225] Please refer to FIG. 14 and FIG. 15. In some embodiments, the main body portion 21 is flat.

[0226] Flat means that the thickness of the plate is generally uniform.

[0227] The main body portion 21 is set to be flat to simplify the structure and facilitate processing and manufacturing.

[0228] Please refer to FIG. 6, FIG. 12 and FIG. 15. In some embodiments, the frame-shaped rib 241 is set to be a round-cornered rectangular frame, and each side of the frame-shaped rib 241 is provided with a connecting rib 242.

[0229] The frame-shaped rib 241 is set to be a round-cornered rectangular frame, which means that the frame-shaped rib 241 is generally rectangular, and the four corners of the rectangle are all round-cornered transitions.

[0230] Since the main body portion 21 is generally rectangular, and the frame-shaped rib 241 is also set to be a rectangular frame, the structural strength of the main body portion 21 in the length direction X and the width direction Y tends to be more balanced. Moreover, the rectangular frame is more similar in shape to the frame 22, which facilitates the support of the frame-shaped rib 241 by the frame 22, thereby stabilizing the middle part of the main body portion 21.

[0231] Each side of the frame-shaped rib 241 is provided with a connecting rib 242, which can make each side of the frame-shaped rib 241 more stable to stably support the middle part of the main body portion 21.

[0232] The frame-shaped rib 241 is set as a rectangular frame, which can make the shape of the frame-shaped rib 241 similar to the shape of the frame 22. The connecting rib 242 is arranged on each side of the frame-shaped rib 241 to connect the frame 22, which can make the frame 22 better support the frame-shaped rib 241, and further more stably support the middle part of the main body 21 to improve the modal frequency of the controller cover 20. In addition, each corner of the frame-shaped rib 241 is set as a rounded corner to facilitate processing and manufacturing, especially when the controller cover 20 is made of plastic, which is convenient for injection molding. Moreover, the structure strength of the frame-shaped rib 241 can be improved, and the frame-shaped rib 241 can more stably support the middle part of the main body 21 to improve the modal frequency of the controller cover 20.

[0233] Please refer to FIGS. 6, 12 and 15. In some embodiments, the length direction of the frame-shaped rib 241 is parallel to the length direction X of the main body 21, and the ratio of the length of the frame-shaped rib 241 to the length of the frame 22 is in the range of 0.3-0.8.

[0234] The length direction of the frame-shaped rib 241 is parallel to the length direction X of the main body 21, and the width direction of the frame-shaped rib 241 is also parallel to the width direction Y of the main body 21, which facilitates the design of the frame-shaped rib 241.

[0235] The ratio of the length of the frame-shaped rib 241 to the length of the frame 22 is in the range of 0.3-0.8, such as 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, etc. This can make the length of the frame-shaped rib 241 proportional to the length of the frame 22, which facilitates the length of the frame-shaped rib 241 to be set, and makes the layout of the reinforcing rib 24 in the length direction X more reasonable to better enhance the structural strength of the main body 21 in the length direction X. In addition, the size of the frame-shaped rib 241 in the length direction X can be adjusted, and the length distance of the frame-shaped rib 241 in the length direction X to support the middle part of the main body 21 can be adjusted to balance the mass and stiffness of the middle part of the main body 21 to improve the modal frequency of the controller cover 20. Preferably, the cost of the controller cover 20 and the amount of improvement of the modal frequency are improved.

[0236] As the length of the frame-shaped ribs 241 is set longer, the distance of the frame-shaped ribs 241 to the center of the main body part 21 in the width direction Y is also larger, which makes the width of the middle part of the main body part 21 in the width direction Y without the reinforcing ribs 24 larger, which makes the mass of the middle part of the main body part 21 increase less, and reduces the risk and probability of the middle part of the main body part 21 vibrating; but also makes it more difficult for the frame-shaped ribs 241 to support the middle part of the main body part 21 in the width direction Y, so that the middle part of the main body part 21 is more likely to vibrate in the width direction Y. Conversely, as the length of the frame-shaped ribs 241 is set shorter, the distance of the frame-shaped ribs 241 to the center of the main body part 21 in the width direction Y is also smaller, which makes the width of the middle part of the main body part 21 in the width direction Y without the reinforcing ribs 24 smaller, and makes it easier for the frame-shaped ribs 241 to support the middle part of the main body part 21 in the width direction Y, so that the middle part of the main body part 21 is more difficult to vibrate in the width direction Y; but also makes the mass of the middle part of the main body part 21 increase larger, which correspondingly increases the risk and probability of the middle part of the main body part 21 vibrating.

[0237] The length direction of the frame-shaped ribs 241 is parallel to the length direction X of the main body part 21, and the ratio of the length of the frame-shaped ribs 241 to the length of the frame 22 is in the range of 0.3-0.8, which facilitates the design and manufacture of the frame-shaped ribs 241, and can make the layout of the reinforcing ribs 24 on the main body part 21 in the length direction X more reasonable, balance the mass and stiffness of the middle area of the main body part 21, and improve the modal frequency of the controller cover 20.

[0238] Please refer to FIG. 6, FIG. 12 and FIG. 15, in some embodiments, the width direction of the frame-shaped ribs 241 is parallel to the width direction Y of the main body part 21, and the ratio of the width of the frame-shaped ribs 241 to the width of the frame 22 is in the range of 0.3-0.8.

[0239] The width direction of the frame-shaped ribs 241 is parallel to the width direction Y of the main body part 21, so the length direction of the frame-shaped ribs 241 is also parallel to the length direction X of the main body part 21, which facilitates the design of the frame-shaped ribs 241.

[0240] The ratio of the width of the frame-shaped rib 241 to the width of the frame 22 is in the range of 0.3-0.8, such as the ratio of the width of the frame-shaped rib 241 to the width of the frame 22 being 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, etc., which can make the width of the frame-shaped rib 241 proportionally reduced to the width of the frame 22, facilitate the width of the frame-shaped rib 241 to be set, make the layout of the reinforcing rib 24 in the width direction Y more reasonable, better enhance the structural strength of the main body part 21 in the width direction Y, and can well adjust the size of the frame-shaped rib 241 in the width direction Y, and further adjust the width distance of the frame-shaped rib 241 in the width direction Y to support the middle part of the main body part 21, to balance the mass and stiffness of the middle area of the main body part 21, to improve the modal frequency of the controller cover body 20, and preferably the cost and the amount of improvement of the modal frequency of the controller cover body 20.

[0241] The longer the width of the frame-shaped rib 241 is set, the greater the distance of the frame-shaped rib 241 to the center of the main body part 21 in the length direction X will be, which makes the length of the main body part 21 in the middle part in the length direction X without the reinforcing rib 24 be greater, which will make the mass of the middle part of the main body part 21 increase less, and reduce the risk and probability of the middle part of the main body part 21 vibrating; but also makes it more difficult for the frame-shaped rib 241 to fixedly support the middle part of the main body part 21 in the length direction X, so that the middle part of the main body part 21 is more prone to vibrate in the length direction X. Conversely, the shorter the width of the frame-shaped rib 241 is set, the smaller the distance of the frame-shaped rib 241 to the center of the main body part 21 in the length direction X will be, which makes the length of the main body part 21 in the middle part in the length direction X without the reinforcing rib 24 be smaller, and the frame-shaped rib 241 is easier to fixedly support the middle part of the main body part 21 in the length direction X, so that the middle part of the main body part 21 is more difficult to vibrate in the length direction X; but also makes the mass of the middle part of the main body part 21 increase greater, which correspondingly increases the risk and probability of the middle part of the main body part 21 vibrating.

[0242] The width direction of the frame-shaped rib 241 is parallel to the width direction Y of the main body part 21, and the ratio of the width of the frame-shaped rib 241 to the width of the frame 22 is in the range of 0.3-0.8, which facilitates the design and manufacture of the frame-shaped rib 241, and can make the layout of the reinforcing rib 24 on the main body part 21 in the width direction Y more reasonable, balance the mass and stiffness of the middle area of the main body part 21, and improve the modal frequency of the controller cover body 20.

[0243] Please refer to FIG. 6 and FIG. 15, in some embodiments, the number of connecting ribs 242 is multiple, and the multiple connecting ribs 242 are arranged in a diverging manner.

[0244] The diverging arrangement of the connecting ribs 242 means that the distance between two adjacent connecting ribs 242 gradually increases in the direction in which the frame-shaped rib 241 points to the bezel 22. This can make the bezel 22 more stably support the frame-shaped rib 241, and can make the structural strength of the main body portion 21 between the frame-shaped rib 241 and the bezel 22 more uniform, so as to improve the modal frequency of the controller cover 20.

[0245] The diverging arrangement of the connecting ribs 242 can more stably support the frame-shaped rib 241, and thus support the middle portion of the main body portion 21, so as to improve the modal frequency of the controller cover 20.

[0246] Please refer to FIG. 12. In some embodiments, the connecting ribs 242 can also be arranged in other manners. For example, the connecting ribs 242 on the side of the frame-shaped rib 241 along the length direction X can be arranged along or close to the width direction Y of the main body portion 21. The connecting ribs 242 on the side of the frame-shaped rib 241 along the width direction Y can be arranged along or close to the length direction X of the main body portion 21.

[0247] Please refer to FIG. 6 and FIG. 15. In some embodiments, the frame-shaped rib 241 is provided with a plurality of connecting ribs 242 on each side, and among the connecting ribs 242 corresponding to each side of the frame-shaped rib 241, the distance between two adjacent connecting ribs 242 gradually increases from the middle to the two ends of the corresponding side of the frame-shaped rib 241.

[0248] The frame-shaped rib 241 is provided with a plurality of connecting ribs 242 on each side, so as to more stably support the corresponding side of the frame-shaped rib 241.

[0249] Among the connecting ribs 242 corresponding to each side of the frame-shaped rib 241, the distance between two adjacent connecting ribs 242 gradually increases from the middle to the two ends of the corresponding side of the frame-shaped rib 241, so that the density of the connecting ribs 242 at the middle of each side of the frame-shaped rib 241 is greater.

[0250] The density of the connecting ribs 242 is also referred to as the density of the connecting ribs 242, and means the number of connecting ribs 242 per unit length of the frame-shaped rib 241.

[0251] Since the frame-shaped rib 241 is curved at the corner portion, the strength of the corner portion is higher. Therefore, the density of the connecting ribs 242 at the middle of each side of the frame-shaped rib 241 is set to be greater, so as to better support the middle portion of each side of the frame-shaped rib 241, and make the structural strength of each side of the frame-shaped rib 241 more uniform, so as to improve the modal frequency of the controller cover 20.

[0252] Through the above structure, the density of the connecting ribs 242 in the middle of each side of the frame-shaped rib 241 is set to be larger, and the density of the connecting ribs 242 at the edges is set to be smaller, which can more stably support the frame-shaped rib 241, improve the overall structural strength of the reinforcing rib 24, and further improve the structural strength of the main body part 21, and further improve the modal frequency of the controller cover 20.

[0253] Please refer to FIG. 6 and FIG. 15, in some embodiments, the density of the connecting ribs 242 at the corners of the frame-shaped rib 241 is less than or equal to the density of the connecting ribs 242 at the sides of the frame-shaped rib 241.

[0254] The density of the connecting ribs 242 is also referred to as the density of the connecting ribs 242, which refers to the number of connecting ribs 242 per unit length of the frame-shaped rib 241. If the density of the connecting ribs 242 at the corners of the frame-shaped rib 241 is less than or equal to the density of the connecting ribs 242 at the sides of the frame-shaped rib 241, the number of connecting ribs 242 per unit length at the corners of the frame-shaped rib 241 is set to be less than or equal to the number of connecting ribs 242 per unit length at the sides of the frame-shaped rib 241.

[0255] Since the corners of the frame-shaped rib 241 are curved, the strength is relatively large, and accordingly, the connecting ribs 242 at the corners are set to be less, which can make the overall structural strength of the frame-shaped rib 241 more balanced, to more stably support the middle of the main body part 21, and further improve the modal frequency of the controller cover 20, and can reduce the number of connecting ribs 242, reduce the weight and material usage of the controller cover 20, and reduce the cost.

[0256] Please refer to FIG. 6 and FIG. 15, in some embodiments, the density of the connecting ribs 242 at the sides in the width direction Y of the frame-shaped rib 241 is greater than or equal to the density of the connecting ribs 242 at the sides in the length direction X of the frame-shaped rib 241, and the number of connecting ribs 242 per unit length along the sides in the width direction Y of the frame-shaped rib 241 is set to be greater than or equal to the number of connecting ribs 242 per unit length along the sides in the length direction X of the frame-shaped rib 241.

[0257] Generally, since the length of the main body part 21 in the length direction X is greater than or equal to the size in the width direction Y, when the controller cover 20 is excited to vibrate, the vibration in the length direction X is relatively large, which will be transmitted to the connecting ribs 242 at the sides in the width direction Y of the frame-shaped rib 241, and the density of the connecting ribs 242 in the density direction is set to be greater than or equal to the density of the connecting ribs 242 in the length direction X, which can make the strength of the sides in the width direction Y of the frame-shaped rib 241 larger, which can better withstand the vibration of the controller cover 20 in the length direction X, and further reduce the amplitude of the vibration in the length direction X, reduce the vibration radiation noise, and improve the modal frequency of the controller cover 20.

[0258] Referring to FIG. 12, in some embodiments, the reinforcing rib 24 further comprises an auxiliary rib 243 connecting the plurality of connecting ribs 242.

[0259] The auxiliary rib 243 refers to a rib or riblet between the frame 22 and the frame-shaped rib 241, connecting the plurality of connecting ribs 242.

[0260] The auxiliary rib 243 is provided to improve the structural strength of the reinforcing rib 24, to more stably support the main body part 21, to enhance the structural strength of the controller cover 20, and to improve the modal frequency of the controller cover 20.

[0261] Referring to FIGS. 6, 12, and 15, in some embodiments, the reinforcing rib 24 is provided on the inner surface of the main body part 21.

[0262] The inner surface of the main body part 21 refers to the surface of the side close to the inside of the housing of the controller 200 after the controller cover 20 is installed on the housing of the controller 200.

[0263] Providing the reinforcing rib 24 on the inner surface of the main body part 21 facilitates the arrangement of the reinforcing rib 24, and after being applied to the controller 200, the occupying size can be reduced. In addition, when the damping and sound-absorbing plate 25 needs to be arranged on the outer surface of the main body part 21, arranging the reinforcing rib 24 on the inner surface of the main body part 21 can make the outer surface of the main body part 21 more smooth, facilitate the installation of the damping and sound-absorbing plate 25, and can make the size of the damping and sound-absorbing plate 25 larger, and improve the sound-absorbing effect of the damping and sound-absorbing plate 25.

[0264] In some embodiments, the frame 22 and the main body part 21 are integrally formed.

[0265] The frame 22 and the main body part 21 being integrally formed means that the frame 22 and the main body part 21 are made by an integral forming process, such as integral injection molding, to facilitate the connection of the frame 22 and the main body part 21, make the connection of the frame 22 and the main body part 21 firm, and facilitate the integral manufacturing of the controller cover 20.

[0266] In some embodiments, the frame 22 and the main body part 21 are separately manufactured.

[0267] The frame 22 and the main body part 21 being separately manufactured means that the frame 22 and the main body part 21 are separately processed and manufactured, and then the frame 22 and the main body part 21 are connected and fixed by adhesion, bonding, or fasteners (such as screws, rivets, etc.).

[0268] The frame 22 and the main body part 21 being separately manufactured can facilitate the manufacturing and precision detection of each part by manufacturing the main body part 21 and the frame 22 through multiple processes, and then connecting the main body part 21 and the frame 22.

[0269] Please refer to FIGS. 8-16, in some embodiments, the controller cover 20 further comprises a connecting frame 23, the connecting frame 23 extends from the inner side of the frame 22 to the side of the thickness direction, and the other end of the connecting frame 23 is connected to each side of the main body 21.

[0270] The connecting frame 23 refers to a shell structure arranged in a frame shape. The connecting frame 23 extends from the inner side of the frame 22 to the side of the thickness direction, and the other end of the connecting frame 23 is connected to each side of the main body 21, that is, one end of the connecting frame 23 is connected to the inner side of the frame 22, and the other end of the connecting frame 23 is connected to the main body 21.

[0271] The inner side of the frame 22 refers to the side of the frame 22 close to the middle part of the main body 21.

[0272] Since the controller cover 20 is connected to the shell of the controller 200 when applied, and other components of the controller 200 are installed inside the shell, the connecting frame 23 extends from the inner side of the frame 22 to the side of the thickness direction, and the connecting frame 23 is usually protruded to the side away from the shell of the controller 200, that is, the connecting frame 23 is usually protruded to the side where the outer surface of the controller cover 20 is located, so as to reduce the space occupied by the controller cover 20 inside the shell of the controller 200, thereby avoiding the influence of the controller cover 20 on the installation of other components of the controller 200 in the shell to a certain extent. Of course, in some embodiments, when the shell of the controller 200 has sufficient space, the connecting frame 23 can also be protruded to the side where the inner surface of the controller cover 20 is located.

[0273] The connecting frame 23 is arranged to form a stepped structure between the main body 21 and the frame 22, improve the structural strength of the frame 22, the connecting frame 23 and the edge of the main body 21, and improve the modal frequency of the controller cover 20.

[0274] In some embodiments, when the middle part of the main body 21 is protruded to one side along the thickness direction Z, the direction in which the connecting frame 23 protrudes from the frame 22 is consistent with the direction in which the main body 21 protrudes from the frame 22, so as to facilitate processing and manufacturing.

[0275] Please refer to FIGS. 8-16, in some embodiments, the height of the connecting frame 23 is less than or equal to 30mm.

[0276] The height h of the connecting frame 23 refers to the height of the connecting frame 23 protruding from the bezel 22. The height h of the connecting frame 23 is set to be less than or equal to 30 mm, i.e., the height h of the connecting frame 23 is greater than 0 and less than or equal to 30 mm. As shown in FIGS. 8-13 and FIGS. 14-16, when the edge of the main body 21 is consistent with the height of the bezel 22, the height h of the connecting frame 23 can be 1 mm, 2 mm, 5 mm, 8 mm, 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, 22 mm, 25 mm, 28 mm, 30 mm, etc. As shown in FIGS. 2-7, when the edge of the main body 21 is not consistent with the height of the bezel 22, the height of the middle of each side of the connecting frame 23 is higher, and the height of the edge is smaller, and the height h of the connecting frame 23 is the height of each corner of the connecting frame 23, which can be 1 mm, 2 mm, 5 mm, 8 mm, 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, 22 mm, 25 mm, 28 mm, 30 mm, etc.

[0277] Since the height h of the connecting frame 23 increases the thickness of the controller cover 20, setting the height h of the connecting frame 23 to be less than or equal to 30 mm can make the overall thickness of the controller cover 20 smaller, and make the connecting frame 23 have good structural strength to stably support the main body 21 and improve the modal frequency of the controller cover 20.

[0278] Setting the height h of the connecting frame 23 to be less than or equal to 30 mm can make the connecting frame 23 have good structural strength to more stably support the main body 21, and can make the overall thickness of the controller cover 20 smaller.

[0279] Referring to FIGS. 8-16, in some embodiments, the height h of the connecting frame 23 is in the range of 2 mm-20 mm.

[0280] The height h of the connecting frame 23 is set in a range of 2mm-20mm. As shown in Figs. 8-13 and Figs. 14-16, when the height of the edge of the main body 21 is consistent with the height of the frame 22, the height h of the connecting frame 23 can be 2mm, 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, etc. As shown in Figs. 2-7, when the height of the edge of the main body 21 is inconsistent with the height of the frame 22, the height of the middle of each side of the connecting frame 23 is higher, and the height of the edge is smaller, then the height h of the connecting frame 23 is the height of each corner of the connecting frame 23, which can be 2mm, 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, etc. The height h of the connecting frame 23 is set in the range of 2mm-20mm, which can make the connecting frame 23 have higher structural strength to support the main body 21, and can make the connecting frame 23 have less material to be controlled well in manufacturing, and the height h range can also facilitate the processing and manufacturing.

[0281] The height h of the connecting frame 23 is set in a range of 2mm-20mm to facilitate the processing and manufacturing of the connecting frame 23, make the connecting frame 23 have good structural strength, and make the overall thickness size of the controller cover 20 smaller.

[0282] Please refer to Figs. 2, 7, 8, 13 and 14, in some embodiments, the frame 22 and the connecting frame 23 are integrally formed.

[0283] The frame 22 and the connecting frame 23 are integrally formed, which means that the frame 22 and the connecting frame 23 are made by an integral forming process, such as integral injection molding, to facilitate the connection of the frame 22 and the connecting frame 23, make the frame 22 and the connecting frame 23 firmly connected, and also facilitate the integral manufacturing of the controller cover 20.

[0284] In some embodiments, the frame 22 and the connecting frame 23 are separately manufactured.

[0285] The frame 22 and the connecting frame 23 are separately manufactured, which means that the frame 22 and the connecting frame 23 are separately processed and manufactured, and then the frame 22 and the connecting frame 23 are connected and fixed by adhesion, bonding or fasteners (such as screws, rivets, etc.).

[0286] The frame 22 and the connecting frame 23 are separately manufactured, which can be manufactured by multiple processes to separately manufacture the connecting frame 23 and the frame 22, and then connect the connecting frame 23 and the frame 22, to facilitate the manufacturing and precision detection of each part.

[0287] In some embodiments, the connecting frame 23 and the main body 21 are integrally formed.

[0288] The integral forming of the connecting frame 23 and the main body 21 means that the connecting frame 23 and the main body 21 are made by integral forming process, such as integral injection molding, so as to connect the connecting frame 23 and the main body 21, make the connecting frame 23 and the main body 21 firmly connected, and facilitate the integral manufacturing of the controller cover body 20.

[0289] In some embodiments, the connecting frame 23 and the main body 21 are separately manufactured.

[0290] The separate manufacturing of the connecting frame 23 and the main body 21 means that the connecting frame 23 and the main body 21 are separately manufactured, and then the connecting frame 23 and the main body 21 are connected and fixed by adhesion, bonding or fasteners (such as screws, rivets, etc.).

[0291] The separate manufacturing of the connecting frame 23 and the main body 21 can be achieved by manufacturing the main body 21 and the connecting frame 23 in multiple processes, and then connecting the main body 21 and the connecting frame 23, so as to facilitate the manufacturing and precision detection of each part.

[0292] Please refer to FIGS. 7, 13 and 16, in some embodiments, the outer surface of the main body 21 is attached with a damping sound absorption plate 25.

[0293] The damping sound absorption plate 25, also known as a damping sound insulation plate, is a plate used to absorb sound waves. The damping sound absorption plate 25 is mainly made of sound insulation materials such as polyester fiber, glass fiber, mineral wool, and silicate fiber. By setting the damping sound absorption plate 25 on the outer surface of the main body 21, the vibration noise radiated outward from the main body 21 will be first absorbed by the damping sound absorption plate 25, thereby reducing the vibration noise of the controller cover body 20.

[0294] By setting the damping sound absorption plate 25, the vibration radiation noise of the main body 21 can be absorbed to reduce the noise generated by the vibration of the controller cover body 20, thereby achieving good noise reduction.

[0295] Please refer to FIGS. 6, 7, 12, 13, 15 and 16, in some embodiments, when the main body 21 is provided with the reinforcing ribs 24 and the damping sound absorption plate 25, the reinforcing ribs 24 can be arranged on the inner surface of the main body 21, so that the outer surface of the main body 21 can be arranged more flatly, and the area is larger, thereby facilitating the attachment of the damping sound absorption plate 25 on the outer surface of the main body 21, and the area of the damping sound absorption plate 25 can be set larger, and the processing and manufacturing of the damping sound absorption plate 25 are facilitated, and the sound absorption and noise reduction effect is improved.

[0296] Please refer to FIGS. 8 and 13, in some embodiments, when the main body 21 is in the shape of a pyramid, the damping sound absorption plates 25 can be arranged on the outer surfaces of the four flat plates 211 of the main body 21, so that each damping sound absorption plate 25 can use a flat plate to facilitate processing and manufacturing.

[0297] In some embodiments, when the main body 21 is in a pyramid shape, the damping sound absorption plates 25 can be arranged on the outer surfaces of the four flat plates 211 of the main body 21, so that each damping sound absorption plate 25 can use a flat plate to facilitate processing and manufacturing.

[0298] Referring to FIGS. 2 and 7, in some embodiments, when the main body 21 is gradually convex from both ends to the middle along the width direction Y and gradually convex from both ends to the middle along the length direction X, the damping sound absorption plates 25 can be attached to the entire outer surface of the main body 21, and at this time, the damping sound absorption plates 25 have a shape that is adapted to the contoured surface of the outer surface of the main body 21.

[0299] Referring to FIGS. 14 and 16, in some embodiments, when the main body 21 is a flat plate, i.e., the outer surface of the main body 21 is flat, the damping sound absorption plates 25 can be attached to the entire outer surface of the main body 21, and at this time, the damping sound absorption plates 25 use flat plates to facilitate processing and manufacturing of the damping sound absorption plates 25.

[0300] In some embodiments, when the main body 21 is provided with the reinforcing ribs 24 and the damping sound absorption plates 25, the reinforcing ribs 24 can also be arranged on the outer surface of the main body 21, so that the damping sound absorption plates 25 can be provided with groove structures at positions corresponding to the reinforcing ribs 24 to accommodate the reinforcing ribs 24.

[0301] In some embodiments, when the main body 21 is provided with the reinforcing ribs 24 and the damping sound absorption plates 25, the reinforcing ribs 24 can also be arranged on the outer surface of the main body 21, so that the damping sound absorption plates 25 with smaller sizes can be arranged between adjacent reinforcing ribs 24.

[0302] Referring to FIGS. 2-7, some embodiments of the present application provide a controller cover 20, which includes a main body 21, a frame 22, and a connecting frame 23. The main body 21 is rectangular in projection along the thickness direction. The frame 22 surrounds the periphery of the main body 21, and the connecting frame 23 extends from the inner side of the frame 22 to one side of the thickness direction and is connected to each side of the main body 21 at the other end. The cross section of the main body 21 along the width direction Y is arc-shaped, and the cross section of the main body 21 along the length direction X is arc-shaped. The inner surface of the main body 21 is provided with a reinforcing rib 24. The reinforcing rib 24 includes a frame-shaped rib 241 arranged around the middle of the main body 21 and a connecting rib 242 connecting the frame-shaped rib 241 and the frame 22. The connecting rib 242 is arranged in a diverging manner. The frame-shaped rib 241 is arranged in a round rectangular frame, and each side of the frame-shaped rib 241 is provided with a connecting rib 242. Among the connecting ribs 242 corresponding to each side of the frame-shaped rib 241: from the middle of the corresponding side of the frame-shaped rib 241 to the two ends, the distance between adjacent two connecting ribs 242 gradually increases. The density of the connecting rib 242 at the corner of the frame-shaped rib 241 is less than or equal to the density of the connecting rib 242 at the side of the frame-shaped rib 241. The outer surface of the main body 21 is attached with a damping sound-absorbing plate 25. The controller cover 20 can greatly improve the modal frequency and reduce the vibration noise.

[0303] Referring to FIGS. 8-13, some embodiments of the present application provide a controller cover 20, which includes a main body 21, a frame 22, and a connecting frame 23. The main body 21 is rectangular in projection along the thickness direction. The frame 22 surrounds the periphery of the main body 21, and the connecting frame 23 extends from the inner side of the frame 22 to one side of the thickness direction and is connected to each side of the main body 21 at the other end. The main body 21 includes four triangular flat plates 211, each side of the main body 21 forms a bottom side of a triangle, and the top of the four flat plates 211 intersects at the middle of the main body 21 to form a pyramid-shaped main body 21. Adjacent two flat plates 211 are connected by a round corner 212. The top 213 of the main body 21 is round and curved, and the surface of the top 213 is tangent to the corresponding surface of each round corner 212 and the corresponding surface of each flat plate 211. The inner surface of the main body 21 is provided with a reinforcing rib 24. The reinforcing rib 24 includes a frame-shaped rib 241 arranged around the middle of the main body 21, a connecting rib 242 connecting the frame-shaped rib 241 and the frame 22, and an auxiliary rib 243 connecting multiple connecting ribs 242. The frame-shaped rib 241 is arranged in a round rectangular frame, and each side of the frame-shaped rib 241 is provided with a connecting rib 242. The outer surface of the main body 21 is attached with a damping sound-absorbing plate 25. The controller cover 20 can greatly improve the modal frequency and reduce the vibration noise.

[0304] Referring to FIGS. 14-16, some embodiments of the present application provide a controller cover 20, which includes a main body 21, a frame 22, and a connecting frame 23. The main body 21 has a rectangular projection in the thickness direction. The frame 22 surrounds the periphery of the main body 21, and the connecting frame 23 extends from the inner side of the frame 22 to one side in the thickness direction, and the other end of the connecting frame 23 is connected to each side of the main body 21. The inner surface of the main body 21 is provided with a reinforcing rib 24. The reinforcing rib 24 includes a frame-shaped rib 241 arranged around the middle of the main body 21 and a connecting rib 242 connecting the frame-shaped rib 241 and the frame 22. The connecting rib 242 is arranged in a diverging manner. The frame-shaped rib 241 is arranged in a round rectangular frame, and each side of the frame-shaped rib 241 is provided with a connecting rib 242. Among the connecting ribs 242 corresponding to each side of the frame-shaped rib 241: from the middle to the two ends of the corresponding side of the frame-shaped rib 241, the distance between adjacent two connecting ribs 242 gradually increases. The density of the connecting rib 242 at the corner of the frame-shaped rib 241 is less than or equal to the density of the connecting rib 242 at the side of the frame-shaped rib 241. The outer surface of the main body 21 is attached with a damping sound-absorbing plate 25. The controller cover 20 can greatly improve the modal frequency and reduce the vibration noise.

[0305] According to some embodiments of the present application, the present application also provides a controller, which includes the controller cover according to any one of the above solutions.

[0306] According to some embodiments of the present application, the present application also provides an electric drive assembly, which includes the controller according to any one of the above solutions.

[0307] According to some embodiments of the present application, the present application also provides an electric device, which includes the electric drive assembly according to any one of the above solutions.

[0308] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A controller cover comprising a main body portion, wherein each side edge of the main body portion is gradually convex from the two ends to the middle of the main body portion in a direction of thickness of the main body portion.

2. The controller cover of claim 1, wherein, The main body portion has a width direction and a length direction, wherein any cross section of the main body portion along the width direction is gradually convex from the two ends to the middle of the main body portion, and any cross section of the main body portion along the length direction is gradually convex from the two ends to the middle of the main body portion.

3. The controller cover of claim 2, wherein, The cross section of the main body portion along the width direction is arc-shaped, and the cross section of the main body portion along the length direction is arc-shaped.

4. The controller cover of claim 3, wherein, The arc height of the arc-shaped cross section of the main body portion along the width direction ranges from 1mm to 50mm, and the arc height of the arc-shaped cross section of the main body portion along the length direction ranges from 1mm to 50mm.

5. The controller cover of claim 4, wherein, The arc height of the arc-shaped cross section of the main body portion along the width direction ranges from 5mm to 20mm, and the arc height of the arc-shaped cross section of the main body portion along the length direction ranges from 5mm to 20mm.

6. The controller cover of claim 1, wherein, The main body portion comprises four triangular flat plates, wherein each side edge of the main body portion forms a bottom side of one of the triangular flat plates, and the top of each of the four flat plates intersects at the middle of the main body portion to form a pyramid-shaped main body portion.

7. The controller cover of claim 6, wherein, Two adjacent flat plates are connected by a rounded corner portion.

8. The controller cover of claim 7, wherein, The top of the main body portion is circularly curved, and the surface of the top is tangent to the corresponding surface of each rounded corner portion and the corresponding surface of each flat plate.

9. The controller cover of any one of claims 1-8, wherein, The controller cover further comprises a frame surrounding the periphery of the main body portion, and each side edge of the main body portion is connected to the frame.

10. The controller cover of claim 9, wherein, At least one side of the main body portion is provided with a reinforcing rib.

11. The controller cover of claim 10, wherein, The reinforcing rib comprises a frame-shaped rib arranged around the middle of the main body portion and a connecting rib connecting the frame-shaped rib and the frame.

12. The controller cover of claim 11, wherein, The frame-shaped rib is arranged in a rounded rectangular frame, and each side of the frame-shaped rib is provided with the connecting rib.

13. The controller cover of claim 12, wherein, The length direction of the frame-shaped rib is parallel to the length direction of the main body portion, and the ratio of the length of the frame-shaped rib to the length of the frame ranges from 0.3 to 0.

8.

14. The controller cover of claim 12 or 13, wherein, The width direction of the frame-shaped rib is parallel to the width direction of the main body portion, and the ratio of the width of the frame-shaped rib to the width of the frame ranges from 0.3 to 0.

8.

15. The controller cover of any one of claims 12-14, wherein, The number of the connecting ribs is multiple, and the multiple connecting ribs are arranged in a divergent manner.

16. The controller cover of any one of claims 12-15, wherein, Each side of the frame-shaped rib is provided with multiple connecting ribs, and among the connecting ribs corresponding to each side of the frame-shaped rib, the distance between two adjacent connecting ribs gradually increases from the middle to the two ends of the corresponding side of the frame-shaped rib.

17. The controller cover of any one of claims 12-16, wherein, The density of the connecting ribs at the corner of the frame-shaped rib is less than or equal to the density of the connecting ribs at the side edge of the frame-shaped rib.

18. The controller cover of any one of claims 12-17, wherein, The density of the connecting ribs at the width direction side edge of the frame-shaped rib is greater than or equal to the density of the connecting ribs at the length direction side edge of the frame-shaped rib.

19. The controller cover of any one of claims 11-18, wherein, The reinforcing rib further comprises an auxiliary rib connecting multiple connecting ribs.

20. The controller cover of any one of claims 10-19, wherein, The reinforcing rib is arranged on the inner surface of the main body portion.

21. The controller cover of any one of claims 9-20, wherein, The frame and the main body portion are integrally formed, or the frame and the main body portion are separately manufactured.

22. The controller cover of any one of claims 9-21, wherein, The controller cover further comprises a connecting frame extending from the inner side of the side frame towards the thickness direction, and the other end of the connecting frame is connected to each side of the main body.

23. The controller cover of claim 22, wherein, The height of the connecting frame is less than or equal to 30 mm.

24. The controller cover of claim 23, wherein, The height of the connecting frame is 2-20 mm.

25. The controller cover of any one of claims 1-24, wherein, The projection of the main body along the thickness direction is rectangular.

26. The controller cover of any one of claims 1-25, wherein, The outer surface of the main body is attached with a damping sound absorption plate.

27. A controller cover, wherein, Comprising: a main body; a side frame surrounding the periphery of the main body, and each side of the main body is connected to the side frame; at least one reinforcing rib is arranged on each side of the main body, and the reinforcing rib comprises a frame-shaped rib arranged around the middle of the main body and a connecting rib connecting the frame-shaped rib and the side frame.

28. The controller cover of claim 27, wherein, The frame-shaped rib is arranged as a rounded rectangular frame, and each side of the frame-shaped rib is provided with the connecting rib.

29. The controller cover of claim 28, wherein, The length direction of the frame-shaped rib is parallel to the length direction of the main body, and the ratio of the length of the frame-shaped rib to the length of the side frame is 0.3-0.

8.

30. The controller cover of claim 28 or 29, wherein, The width direction of the frame-shaped rib is parallel to the width direction of the main body, and the ratio of the width of the frame-shaped rib to the width of the side frame is 0.3-0.

8.

31. The controller cover of any one of claims 28-30, wherein, The number of connecting ribs is multiple, and the multiple connecting ribs are arranged in a divergent manner.

32. The controller cover of any one of claims 28-31, wherein, Each side of the frame-shaped rib is provided with multiple connecting ribs, and among the connecting ribs corresponding to each side of the frame-shaped rib: from the middle to the two ends of the corresponding side of the frame-shaped rib, the distance between adjacent two connecting ribs gradually increases.

33. The controller cover of any one of claims 28-32, wherein, The density of the connecting ribs at the corner of the frame-shaped rib is less than or equal to the density of the connecting ribs at the side of the frame-shaped rib.

34. The controller cover of any one of claims 28-33, wherein, The density of the connecting ribs at the side of the frame-shaped rib in the width direction is greater than or equal to the density of the connecting ribs at the side of the frame-shaped rib in the length direction.

35. The controller cover of any one of claims 27-34, wherein, The reinforcing rib further comprises an auxiliary rib connecting multiple connecting ribs.

36. The controller cover of any one of claims 27-35, wherein, The reinforcing rib is arranged on the inner surface of the main body.

37. The controller cover of any one of claims 27-36, wherein, The side frame and the main body are integrally formed, or the side frame and the main body are separately manufactured.

38. The controller cover of any one of claims 27-37, wherein, The controller cover further comprises a connecting frame extending from the inner side of the side frame towards the thickness direction, and the other end of the connecting frame is connected to each side of the main body.

39. The controller cover of claim 38, wherein, The height of the connecting frame is less than or equal to 30 mm.

40. The controller cover of claim 39, wherein, The height of the connecting frame is 2-20 mm.

41. The controller cover of any one of claims 27-40, wherein, The projection of the main body along the thickness direction is rectangular.

42. The controller cover of any one of claims 27-41, wherein, The main body is arranged as a flat plate.

43. The controller cover of any one of claims 27-42, wherein, The outer surface of the main body is attached with a damping sound absorption plate.

44. A controller, wherein, Comprising the controller cover according to any one of claims 1-43.

45. An electric drive assembly, wherein, Comprising the controller according to claim 44.

46. An electrically powered device, wherein, Comprising the electric drive assembly according to claim 45.

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