Motor controller, motor assembly, electric assembly and vehicle

Abstract

The utility model discloses a motor controller, a motor assembly, an electric assembly and a vehicle, the motor controller comprises a driving plate, an insulating plate and a control plate, and the driving plate, the insulating plate and the control plate are sequentially stacked along a first direction; the first component on the control board is at least partially arranged in the insulating board, and / or the second component on the driving board is at least partially arranged in the insulating board. According to the motor controller provided by the utility model, the driving plate, the insulating plate and the control plate are arranged along the first direction, so that the motor controller can be prevented from occupying the mounting space in the radial direction of the motor as much as possible, and gaps among a plurality of components can be reduced by sequentially stacking the components; according to the motor controller, the insulating plate can better avoid installation of the first component on the control plate and the second component on the driving plate, the installation space occupied by the motor controller in the axial direction can be reduced, the overall size of the motor controller is small, and the installation space occupied by the motor controller is small.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of vehicles, and in particular to a motor controller, a motor component, an electric assembly and a vehicle. Background Art

[0002] In the related art, the motor controller is generally arranged on the outer periphery of the motor housing, or at one axial end. For the motor assembly in which the motor controller is arranged at one axial end of the motor, how to shorten the axial dimension is a major problem currently encountered; for the motor controller arranged on the outer peripheral surface of the motor housing, how to reduce the radial dimension of the motor control is also a key issue currently studied. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a motor controller, the overall volume of the motor controller is small, and the installation space occupied by the motor controller is small.

[0004] The utility model also provides a motor component, which includes the above-mentioned motor controller.

[0005] The utility model also provides an electric assembly, which includes the above-mentioned motor component.

[0006] The utility model also provides a vehicle, which comprises the electric assembly mentioned above.

[0007] According to the motor controller of the embodiment of the utility model, the motor controller includes a driving board, an insulating board and a control board, and the driving board, the insulating board and the control board are stacked in sequence along a first direction; the first component on the control board is at least partially arranged in the insulating board, and / or the second component on the driving board is at least partially arranged in the insulating board.

[0008] According to the motor controller of the embodiment of the utility model, by arranging the driving board, the insulating board and the control board along the first direction, the motor controller can be avoided to occupy the installation space in the radial direction of the motor as much as possible, and the multiple components are stacked in sequence to minimize the gap between the multiple components in the axial direction. The first component on the control board is at least partially arranged in the insulating board, and the second component on the driving board is at least partially arranged in the insulating board. The insulating plate can better avoid the installation of the first component on the control board and the second component on the driving board, and can reduce the installation space occupied by the motor controller in the axial direction, so that the overall volume of the motor controller is smaller, and the installation space occupied by the motor controller is smaller.

[0009] In some embodiments of the present invention, the first component on the control board is at least partially disposed in the insulating board, the second component on the drive board is at least partially disposed in the insulating board, and the first component on the control board and the second component on the drive board are staggered.

[0010] In some embodiments of the present invention, the insulating plate and the control plate are connected as a whole, and the whole formed by the insulating plate and the control plate is connected to the driving plate.

[0011] In some embodiments of the present invention, a receiving groove is provided on the insulating plate, the first component is provided on a side of the control board close to the insulating plate, and at least a portion of the first component is fixed in the receiving groove.

[0012] In some embodiments of the present invention, the receiving groove and the first component are bonded by adhesive.

[0013] In some embodiments of the utility model, a first through hole is provided at the bottom of the accommodating groove, the first component is bonded to the bottom of the accommodating groove by adhesive, and the adhesive is partially embedded in the first through hole; or, a first through hole is provided at the bottom of the accommodating groove, the first component is bonded to the bottom of the accommodating groove by adhesive, the adhesive is partially embedded in the first through hole, and the adhesive is provided on both side surfaces of the bottom.

[0014] In some embodiments of the utility model, the insulating plate includes a second plate body and a third plate body, the second plate body and the third plate body form a first groove, the notch of the first groove faces the driving plate, the third plate body is provided with at least one said accommodating groove, the notch of the said accommodating groove is arranged on the third plate body, the groove wall of the said accommodating groove is at least partially arranged in the first groove, and the notch of the said accommodating groove faces the control plate.

[0015] In some embodiments of the present invention, the insulating plate further includes a first plate body, the first plate body and the third plate body are arranged in parallel, and the second plate body is an annular plate, and the second plate body is connected to the first plate body and the third plate body respectively.

[0016] In some embodiments of the utility model, a first reinforcing rib is further included, wherein the first reinforcing rib is arranged around the edge of the second plate body, the first reinforcing rib encloses a second groove, the first groove and the second groove are connected to form a receiving space opening toward the driving plate, and the receiving groove is completely located in the receiving space.

[0017] In some embodiments of the present invention, the second component is disposed on a side of the driving board facing the insulating board, and the second component is at least partially disposed in the accommodating space and staggered with the accommodating groove.

[0018] In some embodiments of the present invention, the motor controller also includes a DC bus injection molded part, which is arranged on a side of the driving board adjacent to the insulating plate, and the DC bus injection molded part includes a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are at least partially stacked and insulated in the first direction.

[0019] In some embodiments of the present invention, a third reinforcing rib is provided on a side of the third plate body away from the control board, the third reinforcing rib is arranged around the overlapping portion of the first connecting plate and the second connecting plate, and the third reinforcing rib is completely located in the accommodating space.

[0020] In some embodiments of the present invention, the DC busbar injection molding also includes a plastic part, which wraps the stacked parts of the first connecting piece and the second connecting piece. In the first direction, the plastic part includes a first plastic layer covering the first connecting piece and a second plastic layer covering the second connecting piece; in the first direction, the size of the third reinforcement rib is not greater than the sum of the sizes of the first connecting piece and the first plastic layer.

[0021] In some embodiments of the utility model, a second reinforcing rib is provided on a side of the third plate body away from the control plate, and the second reinforcing rib at least indirectly connects the first reinforcing rib and the third reinforcing rib, and in the first direction, the size of the third reinforcing rib is the same as the size of the second reinforcing rib.

[0022] In some embodiments of the present invention, the DC busbar injection molding includes a first connecting seat and a second connecting seat, the first connecting seat is connected to one end of the first connecting plate in the length direction, the second connecting seat is connected to one end of the second connecting plate in the length direction, the axial direction of the first connecting seat is the same as the thickness direction of the first connecting plate, the axial direction of the second connecting seat is the same as the thickness direction of the second connecting plate, a second avoidance hole is formed on the insulating plate, a third avoidance hole is formed on the control plate, and the first connecting seat and the second connecting seat are inserted into the second avoidance hole and the third avoidance hole.

[0023] In some embodiments of the utility model, a first fixing column is formed on the DC busbar injection molded part, a first fixing hole is formed on the insulating plate, a second fixing hole is formed on the control plate, the first fixing column is passed through the first fixing hole and the second fixing hole, and the second fastener is passed through the first fixing column.

[0024] In some embodiments of the present invention, the DC busbar injection molded part further includes a limiting boss, the limiting boss is penetrated through the second avoidance hole, and the limiting boss is in contact with a surface of the control board close to the insulating board.

[0025] In some embodiments of the utility model, the limiting boss is U-shaped, the limiting boss is provided on the outer periphery of the first connecting seat or the second connecting seat, the limiting boss includes a magnetic collecting magnet, a Hall sensor is provided on the side of the control board close to the insulating board, and the Hall sensor is arranged in the U-shaped opening of the limiting boss.

[0026] In some embodiments of the utility model, the control board and the insulating board are connected by a first fastener; a stud is provided on one side of the insulating board close to the control board, a second through hole is provided on the control board, and the first fastener is passed through the second through hole and the stud.

[0027] In some embodiments of the utility model, a first notch is formed on the control board, and the first notch is a notch formed on the outer peripheral edge of the control board. A second notch is formed on the insulating board, and the second notch is a notch formed on the outer peripheral edge of the insulating board and is arranged opposite to the first notch. A low-voltage connector is provided on the control board, and the first notch is used for connecting the low-voltage connector to the outside.

[0028] In some embodiments of the utility model, a connector is provided on the control board, a first avoidance hole for avoiding the connector is provided on the insulating board, and the connector passes through the first avoidance hole and is connected to the driving board.

[0029] In some embodiments of the present utility model, the motor controller further includes a housing and a capacitor, the capacitor, the drive board, the insulating board and the control board are arranged in the housing, and the insulating board is bonded to the housing by adhesive.

[0030] In some embodiments of the present invention, the motor controller further comprises an end cover, wherein the end cover is disposed at one axial end of the housing, and the control board is disposed at one end of the housing in the axial direction close to the end cover.

[0031] The motor assembly according to the embodiment of the utility model comprises a motor and the above-mentioned motor controller, wherein the motor controller is arranged at one axial end of the motor.

[0032] According to the motor assembly of the embodiment of the utility model, by arranging the driving plate, the insulating plate and the control plate along the first direction, the motor controller can be avoided to occupy the installation space in the radial direction of the motor as much as possible, and the multiple components are stacked in sequence to minimize the gap between the multiple components in the axial direction. The first component on the control board is at least partially arranged in the insulating plate, and the second component on the driving board is at least partially arranged in the insulating plate. The insulating plate can better avoid the installation of the first component on the control board and the second component on the driving board, and can reduce the installation space occupied by the motor controller in the axial direction, so that the overall volume of the motor controller is smaller, and the installation space occupied by the motor controller is smaller.

[0033] The electric assembly according to the embodiment of the utility model includes the above-mentioned motor assembly and transmission.

[0034] According to the electric assembly of the embodiment of the utility model, by arranging the drive plate, the insulating plate and the control plate along the first direction, the motor controller can be avoided to occupy the installation space in the radial direction of the motor as much as possible, and the multiple components are stacked in sequence to minimize the gap between the multiple components in the axial direction. The first component on the control board is at least partially arranged in the insulating plate, and the second component on the drive board is at least partially arranged in the insulating plate. The insulating plate can better avoid the installation of the first component on the control board and the second component on the drive board, and can reduce the installation space occupied by the motor controller in the axial direction, so that the overall volume of the motor controller is smaller, and the installation space occupied by the motor controller is smaller.

[0035] A vehicle according to an embodiment of the utility model includes the above-mentioned electric assembly.

[0036] According to the vehicle of the embodiment of the utility model, by arranging the drive plate, the insulating plate and the control plate along the first direction, the motor controller can be avoided to occupy the installation space in the radial direction of the motor as much as possible, and the multiple components are stacked in sequence to minimize the gap between the multiple components in the axial direction. The first component on the control board is at least partially arranged in the insulating plate, and the second component on the drive board is at least partially arranged in the insulating plate. The insulating plate can better avoid the installation of the first component on the control board and the second component on the drive board, and can reduce the installation space occupied by the motor controller in the axial direction, so that the overall volume of the motor controller is smaller, and the installation space occupied by the motor controller is smaller.

[0037] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0039] Figure 1 is an exploded diagram of a motor controller according to an embodiment of the utility model;

[0040] Figure 2 is a three-dimensional diagram of an insulating plate and a control board of a motor controller according to an embodiment of the utility model;

[0041] Figure 3 is a front view of a control board of a motor controller according to an embodiment of the utility model;

[0042] Figure 4 is a back view of a control board of a motor controller according to an embodiment of the utility model;

[0043] Figure 5 is a front view of an insulating plate of a motor controller according to an embodiment of the utility model;

[0044] Figure 6 is a back view of an insulating plate of a motor controller according to an embodiment of the utility model;

[0045] Figure 7 It is a three-dimensional diagram of a DC busbar injection molded part of a motor controller according to an embodiment of the utility model;

[0046] Figure 8 It is a three-dimensional view of the DC busbar injection molded part of the motor controller according to an embodiment of the utility model from another angle;

[0047] Fig. 9 is an exploded view of a DC busbar injection molded part of a motor controller according to an embodiment of the utility model;

[0048] Fig.10 It is a cross-sectional view of an insulating plate, a control board, a driving part and a DC busbar injection molded part of a motor controller according to an embodiment of the utility model;

[0049] Fig.11 is a front view of an insulating plate and a control board of a motor controller according to an embodiment of the utility model;

[0050] Fig.12 is a back view of an insulating plate and a control board of a motor controller according to an embodiment of the utility model;

[0051] Fig.13 is an exploded diagram of a capacitor of a motor controller according to an embodiment of the utility model;

[0052] Fig.14It is a simplified diagram of an insulating plate of a motor controller according to an embodiment of the present utility model.

[0053] Reference numerals:

[0054] 100. Motor controller;

[0055] 1. Insulating plate; 11. Accommodating groove; 111. First through hole; 112. Groove bottom; 113. Notch; 131. First reinforcing rib; 1311. Second groove; 1312. Accommodating space; 132. Second reinforcing rib; 133. Third reinforcing rib; 141. First plate body; 142. Second plate body; 143. Third plate body; 144. First groove; 15. Second avoidance hole; 16. First fixing hole; 17. Stud; 18. Second notch; 19. First avoidance hole; 101. Glue coating groove;

[0056] 2. Control board; 21. Board body; 22. First component; 23. Third avoidance hole; 24. Second fixing hole; 25. Hall sensor; 26. Second through hole; 27. First notch; 28. Connector;

[0057] 3. Driver board;

[0058] 4. capacitor; 41. capacitor housing; 42. power tube; 43. capacitor core; 44. housing; 45. accommodating cavity;

[0059] 5. DC busbar injection molding; 51. first connecting piece; 52. second connecting piece; 53. limiting boss; 54. plastic part; 541. first plastic layer; 542. second plastic layer; 55. first connecting seat; 56. first fixing column; 57. second connecting seat; 58. magnetic concentrating magnet;

[0060] 6. Shell. DETAILED DESCRIPTION

[0061] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0062] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] Reference below Figure 1-Figure 10 A motor controller 100 according to an embodiment of the present invention is described.

[0065] like Figure 1 As shown, the motor controller 100 according to some embodiments of the present invention includes a driving board 3 , an insulating board 1 and a control board 2 .

[0066] Specifically, Figure 1 As shown, the driving board 3, the insulating board 1 and the control board 2 are arranged along a first direction (eg Figure 1 The first direction is the axial direction of the motor controller 100, so that each component of the motor controller 100 can be arranged along the axial direction of the motor controller 100, and the installation space occupied by the motor controller 100 in the radial direction can be compressed as much as possible. And relative to the installation method of multiple components arranged at intervals, the stacking arrangement of multiple components can minimize the gap between the components of the motor controller 100, and the stacking arrangement of multiple components can minimize the installation space occupied by the motor controller 100 in the axial direction, so that the overall volume of the motor controller 100 is small, and the installation space occupied by the motor controller 100 is small.

[0067] The motor controller 100 is also provided with an IGBT module. After receiving an external control signal, the control board 2 controls the driving board 3 to drive the IGBT module to turn on and off according to the control signal, converting the input DC power into AC power, and then outputting it to the motor to control the motor to start running.

[0068] The first component on the control board is at least partially arranged in the insulating plate 1. The first component 22 can be a small capacitor or a transformer. There can be multiple first components 22. Small capacitors and transformers are large in size and occupy more space. The insulating plate 1 can better avoid the installation of the first component 22 on the control board 2, and can minimize the installation space occupied by the motor controller 100 in the axial direction.

[0069] The second component on the driving board is at least partially arranged in the insulating plate 1. The second component can be a small capacitor or a transformer. There can be multiple second components. Small capacitors and transformers are large in size and occupy more space. The insulating plate 1 can better avoid the installation of the second component on the driving board 3, and can minimize the installation space occupied by the motor controller 100 in the axial direction, so that the overall volume of the motor controller 100 is smaller, and the installation space occupied by the motor controller 100 is smaller.

[0070] For example, when the motor controller 100 is arranged at one axial end of the motor, according to the motor controller 100 of the embodiment of the utility model, by arranging the drive board 3, the insulating board 1 and the control board 2 along the first direction, the motor controller 100 can be avoided as much as possible from occupying the installation space in the radial direction of the motor, and multiple components are stacked in sequence to minimize the gap between multiple components in the axial direction. The first component 22 on the control board 2 is at least partially arranged in the insulating board 1, and the second component on the drive board 3 is at least partially arranged in the insulating board 1. The insulating board 1 can better avoid the installation of the first component 22 on the control board 2 and the second component on the drive board 3, which can reduce the installation space occupied by the motor controller 100 in the axial direction, so that the overall volume of the motor controller 100 is smaller, and the installation space occupied by the motor controller 100 is smaller.

[0071] In some embodiments of the utility model, the first component 22 on the control board 2 is at least partially disposed in the insulating board 1, the second component on the drive board 3 is at least partially disposed in the insulating board 1, and the first component 22 on the control board 2 and the second component on the drive board 3 are staggered. That is to say, in the thickness direction of the drive board 3, the first component 22 and the second component at least partially overlap, and their staggered arrangement can save space in the thickness direction of the drive board 3. The insulating board 1 can better avoid the installation of the first component 22 on the control board 2 and the second component on the drive board 3, and can minimize the installation space occupied by the motor controller 100 in the axial direction, so that the overall volume of the motor controller 100 is smaller, and the installation space occupied by the motor controller 100 is smaller.

[0072] In the related art, the thickness direction of the driving plate 3 is generally the radial direction of the motor or the axial direction of the motor, which makes full use of the space in the thickness direction of the driving plate 3 and is conducive to the miniaturized design of the motor controller 100 .

[0073] In some embodiments of the present invention, Figure 1 , Figure 2 and Figure 10-12 As shown, the insulating plate 1 and the control board 2 are connected as a whole, and the whole formed by the insulating plate 1 and the control board 2 is connected to the driving board 3. A plurality of first components 22 are arranged on the control board 2. During the operation of the control board 2, the first components 22 on the control board 2 are easily interfered by other components. For example, when the control board 2 is used in the motor controller 100, the electromagnetic waves generated by the driving board 3 of the motor controller 100 are easy to affect the first components 22 on the control board 2. By providing the insulating plate 1, the insulating plate 1 can isolate the control board 2 from other components and play a shielding role, which can avoid the interference of other components on the control board 2, thereby improving the stability of the operation of the motor controller 100. In addition, the control board 2 is fixedly connected to the insulating plate 1, and the insulating plate 1 can play a role in reinforcing and supporting the control board 2, thereby improving the overall structural strength of the motor controller 100. At the same time, it can improve the vibration resistance of the control board 2 and ensure the stability of the position of the control board 2.

[0074] Optionally, the control board 2 and the insulating board 1 may be connected by fasteners, welding or adhesive bonding.

[0075] The drive board 3 is arranged on the side of the insulating board 1 away from the control board 2, which can improve the space utilization and make the structure of the motor controller 100 more compact. At the same time, the insulating board 1 is located between the drive board 3 and the control board 2, which can play a shielding role and prevent the electromagnetic waves of the drive board 3 from interfering with the electromagnetic waves of the control board 2, thereby affecting the operation of the motor controller 100.

[0076] In some embodiments of the present invention, the insulating plate 1 is a plastic plate. The plastic plate is made of non-conductive material, and the plastic plate can not only shield the control board 2, but also play an insulating protection role, which can improve the safety performance of the motor controller 100 to a certain extent. In addition, the plastic plate can reduce the production cost to a certain extent, making the weight of the insulating plate 1 lighter, thereby making the overall weight of the motor controller 100 lighter.

[0077] In some embodiments of the present invention, Figure 2-Figure 5 As shown, the insulating plate 1 is provided with a receiving groove 11, and the first component 22 is provided on a side of the control board close to the insulating plate. At least part of the first component 22 is fixed in the receiving groove 11. It can be that part of the first component 22 is received in the receiving groove 11, or the first component 22 is received in the receiving groove 11 as a whole. The receiving groove 11 can match the shape of the first component 22, so that the insulating plate 1 and the control board 2 can be closely attached, so that the overall structure of the motor controller 100 is more compact, and the space occupation rate of the motor controller 100 is reduced. In addition, at least the first component 22 is received in the receiving groove 11, and the receiving groove 11 can protect the first component 22.

[0078] In some embodiments of the present invention, the receiving groove 11 and the first component 22 are bonded by adhesive, and the connection method between the receiving groove 11 and the first component 22 is relatively simple.

[0079] At this time, the adhesive may be an insulating adhesive, which can play a role in insulation protection and improve the safety performance of the motor controller 100 to a certain extent.

[0080] In some embodiments of the present invention, Figure 6 As shown, the bottom 112 of the receiving groove 11 is provided with a first through hole 111, and the first component 22 is bonded to the bottom 112 of the receiving groove 11 by adhesive, and the adhesive part is embedded in the first through hole 111. The end surface of the first component 22 away from the board body 21 and the first through hole 111 of the receiving groove 11 may be bonded by adhesive, or the end surface of the first component 22 away from the board body 21 and other parts may be bonded to the first through hole 111 of the receiving groove 11 by adhesive. At least the end surface of the first component 22 away from the board body 21 and the first through hole 111 of the receiving groove 11 are bonded by adhesive, so that the first component 22 and the receiving groove 11 have a larger bonding area, thereby ensuring the bonding effect of the first component 22 of the control board 2 and the insulating board 1.

[0081] Alternatively, the bottom 112 of the receiving groove 11 is provided with a first through hole 111, and the first component 22 is bonded to the bottom 112 of the receiving groove 11 by adhesive, the adhesive part is embedded in the first through hole 111, and adhesive is provided on both sides of the bottom 112 of the groove. The end face of the first component 22 away from the board body 21 may be bonded to the first through hole 111 of the receiving groove 11 and the two sides of the bottom 112 of the groove by adhesive, or the end face of the first component 22 away from the board body 21 and other parts may be bonded to the first through hole 111 of the receiving groove 11 and the two sides of the bottom 112 of the groove by adhesive. At least the end face of the first component 22 away from the board body 21 is bonded to the first through hole 111 of the receiving groove 11 and the two sides of the bottom 112 of the groove by adhesive, so that the first component 22 and the receiving groove 11 have a larger bonding area, thereby ensuring the bonding effect of the first component 22 of the control board 2 and the insulating board 1.

[0082] In some embodiments of the present invention, Figure 6 and Fig.14 As shown, the insulating plate 1 includes a second plate body 142 and a third plate body 143, the second plate body 142 and the third plate body 143 form a first groove 144, the groove 113 of the first groove 144 faces the driving plate 3, the third plate body 143 is provided with at least one accommodating groove 11, the groove 113 of the accommodating groove 11 is arranged on the third plate body 142, the groove wall of the accommodating groove 11 is at least partially arranged in the first groove 144, and the groove 113 of the accommodating groove 11 faces the control board.

[0083] It can be understood that both the receiving groove 11 and the groove can accommodate the first component 22. Since the second plate body 142 and the third plate body 143 form the first groove 144, the notch 113 of the receiving groove 11 is arranged on the third plate body 143, so that the opening direction of the receiving groove 11 is opposite to the opening direction of the first groove 144, so that the first component 22 can be easily arranged in the receiving groove 11 and the first groove 144. At the same time, since the groove wall of the receiving groove 11 is at least partially arranged in the first groove 144, the receiving groove 11 and the first groove 144 are The groove 144 is at least partially overlapped in the arrangement direction of the first plate body 141 and the third plate body 143, thereby reducing the overall space occupied by the accommodating groove 11 and the first groove 144 in the arrangement direction of the first plate body 141 and the third plate body 143, thereby reducing the installation space occupied by the insulating plate 1 in the axial direction of the motor, and minimizing the installation space occupied by the motor controller 100 in the axial direction of the motor, so that the overall volume of the motor controller 100 is smaller and the installation space occupied by the motor controller 100 is smaller.

[0084] In some embodiments of the present invention, Figure 2 , Figure 5 and Fig.14As shown, the insulating plate 1 also includes a first plate body 141, the first plate body 141 and the third plate body 143 are arranged in parallel, the second plate body 142 is an annular plate, the two ends of the second plate body 142 are respectively connected to the first plate body 141 and the third plate body 143, and the third plate body 143 is arranged close to the control board 2, thereby, the first plate body 141 and the third plate body 143 are connected through the second plate body 142, so that the insulating plate 1 forms a whole. The first plate body 141 can support and connect the driving plate 3, so that the connection between the insulating plate 1 and the driving plate 3 is more reliable.

[0085] In some embodiments of the present invention, Figure 6 and Fig.14 As shown, the insulating plate 1 includes a first reinforcing rib 131, which is arranged around the edge of the second plate body 142, and the first reinforcing rib 131 surrounds a second groove 1311. The first groove 1441 and the second groove 1311 are connected to form a receiving space 1312 opening toward the driving plate 3, and the receiving groove 11 is completely located in the receiving space 1312.

[0086] As a result, the connection reliability between the first plate body 141 and the third plate body 143 is improved, and the structural strength of the insulating plate 1 is also improved. At the same time, the provision of the first reinforcing rib 131 is also conducive to increasing the depth of the second groove 1312, so that the second component on the driving board 3 and the first component 22 on the control board 2 can better utilize the depth space of the second groove 1312, thereby further reducing the installation space occupied by the motor controller 100 in the axial direction of the motor, so that the overall volume of the motor controller 100 is smaller, and the installation space occupied by the motor controller 100 is smaller.

[0087] In addition, the first reinforcing ribs 131 can also ensure a certain distance between the components connected at both ends of the axial direction of the insulating plate 1, thereby forming a certain safety distance, thereby avoiding mutual influence between the components connected at both ends of the axial direction of the insulating plate 1 during operation, thereby improving safety.

[0088] In some embodiments of the present invention, Figure 6 and Fig.14 As shown, the bottom 112 of the receiving groove 11 does not exceed the end of the first reinforcing rib 131 away from the first plate body 141. While minimizing the size of the insulating plate 1 in the thickness direction (first direction), the receiving groove 11 can provide a receiving space for the first component 22 of the control board 2, thereby making the overall structure of the motor controller 100 more compact, and the first reinforcing rib 131 can also improve the structural strength of the insulating plate 1.

[0089] In some embodiments of the present invention, Figure 2 and Figure 3As shown, the second component 22 is arranged on the side of the driving board 3 facing the insulating board 1, and the second component 22 is at least partially arranged in the accommodating space 1312, and is staggered with the accommodating groove 11. The insulating board 1 can better avoid the installation of the first component 22 on the control board 2 and the second component on the driving board 3, and can minimize the installation space occupied by the motor controller 100 in the axial direction of the motor, so that the overall volume of the motor controller 100 is small, and the installation space occupied by the motor controller 100 is small.

[0090] In some embodiments of the present invention, Figure 1 and Figure 7 As shown, the motor controller 100 also includes a DC busbar injection molded part 5, which is arranged on one side of the drive board 3 adjacent to the insulating plate 1, which can improve the space utilization rate, making the structure of the motor controller 100 more compact. The DC busbar injection molded part 5 includes a first connecting piece 51 and a second connecting piece 52, which are metal sheets and can be electrically connected to the capacitor 4, and transmit the electrical signal on the capacitor 4 to other components of the motor controller 100 or components outside the motor controller 100, so as to achieve circuit connectivity inside the motor controller 100. The first connecting piece 51 and the second connecting piece 52 are at least partially stacked and insulated in the first direction, which can improve the EMC (Electromagnetic Compatibility) performance of the vehicle, and can also improve the space utilization rate, making the structure of the DC busbar injection molded part 5 more compact.

[0091] In some embodiments of the present invention, Figure 1 and Figure 7 As shown, a third reinforcing rib 133 is provided on one side of the third plate body 143 away from the control board 2, and the third reinforcing rib 133 is arranged around the overlapping portion of the first connecting plate 51 and the second connecting plate 52, so that the shapes of the third reinforcing rib 133 and the DC busbar injection molding 5 are more adapted, and the third reinforcing rib 133 and the DC busbar injection molding 5 can be connected more tightly, and the third reinforcing rib 133 is completely located in the accommodating space 1312, so that the insulating plate 1 and the DC busbar injection molding 5 can be connected more tightly, thereby improving space utilization and making the overall structure of the motor controller 100 more compact.

[0092] In some embodiments of the present invention, Figure 1 and Figure 7-Figure 9As shown, the DC busbar injection molded part 5 also includes a plastic part 54, which wraps the stacked part of the first connecting piece 51 and the second connecting piece 52. The plastic part 54 can have a certain insulation effect. In the first direction, the plastic part 54 includes a first plastic layer 541 covering the first connecting piece 51 and a second plastic layer 542 covering the second connecting piece 52. The first plastic layer 541 and the second plastic layer 542 can play a certain insulation effect to prevent the circuit connected to the first connecting piece 51 and the circuit connected to the second connecting piece 52 from contacting and short-circuiting. The first plastic layer 541 can also protect the first connecting piece 51 and increase the strength of the DC busbar injection molded part 5.

[0093] In some embodiments of the present invention, in the first direction, the size of the third reinforcing rib 133 is not greater than the sum of the sizes of the first connecting piece 51 and the first plastic layer 541. The third reinforcing rib 133 can be prevented from affecting the assembly size of the insulating plate 1 and the DC busbar injection molded part 5 as much as possible, thereby improving space utilization and making the overall structure of the motor controller 100 more compact.

[0094] In some embodiments of the utility model, a second reinforcing rib 132 is provided on the side of the third plate body 143 away from the control board 2. The second reinforcing rib 132 at least indirectly connects the first reinforcing rib 131 and the third reinforcing rib 133, which can increase the force transmission path at various locations of the insulating board 1 and increase the reliability of the insulating board 1. In the first direction, the size of the third reinforcing rib 133 is the same as the size of the second reinforcing rib 132. The strength of the position where the third reinforcing rib 133 and the second reinforcing rib 132 are provided on the insulating board 1 can be made closer, and the strength of various locations of the insulating board 1 can be made closer. In addition, the processing depths of the third reinforcing rib 133 and the second reinforcing rib 132 are closer, which can reduce the processing time of the insulating board 1.

[0095] In some embodiments of the present invention, Figure 3 , Figure 6 and Figure 7-Figure 9As shown, the DC busbar injection molded part 5 includes a first connecting seat 55 and a second connecting seat 57. The first connecting seat 55 is connected to one end of the first connecting plate 51 in the length direction, and the second connecting seat 57 is connected to one end of the second connecting plate 52 in the length direction. The axial direction of the first connecting seat 55 is the same as the thickness direction of the first connecting plate 51, and the axial direction of the second connecting seat 57 is the same as the thickness direction of the second connecting plate 52. A second avoidance hole 15 is formed on the insulating plate 1, and a third avoidance hole 23 is formed on the control plate 2. The first connecting seat 55 and the second connecting seat 57 are penetrated through the second avoidance hole 15 and the third avoidance hole 23. By setting the second avoidance hole 15 on the insulating plate 1 and the third avoidance hole 23 on the control board 2, the first connection seat 55 and the second connection seat 57 are penetrated in the second avoidance hole 15 and the third avoidance hole 23, and the second avoidance hole 15 and the third avoidance hole 23 can play a role of avoidance, which can facilitate the first connection seat 55 and the second connection seat 57 to extend out of the control board 2, and can facilitate the assembly of the first connection seat 55 and the second connection seat 57 with other parts. In addition, the first connection seat 55 and the second connection seat 57 are accommodated in the second avoidance hole 15 and the third avoidance hole 23, and the second avoidance hole 15 and the third avoidance hole 23 can protect and position the first connection seat 55 and the second connection seat 57.

[0096] In some embodiments of the present invention, Figure 3 , Figure 5 and Figure 7 As shown, a first fixing column 56 is formed on the DC busbar injection molded part 5, a first fixing hole 16 is formed on the insulating plate 1, a second fixing hole 24 is formed on the control board 2, the first fixing column 56 is penetrated through the first fixing hole 16 and the second fixing hole 24, and the second fastener is penetrated through the first fixing column 56. By providing the first fixing hole 16 on the insulating plate 1, the second fixing hole 24 on the control board 2, and the first fixing column 56 on the DC busbar injection molded part 5, by respectively penetrating the first fixing column 56 through the first fixing hole 16 and the second fixing hole 24, and then penetrating the second fastener through the first fixing column 56, the connection process is relatively simple and the connection is relatively stable.

[0097] In addition, the DC busbar injection molding 5 is connected to the motor controller 100, which can improve the overall structural strength of the motor controller 100. At the same time, the DC busbar injection molding 5 is connected to the motor controller 100, which can facilitate the subsequent assembly of the motor controller 100. For example, the motor controller 100 also includes a controller housing 6, and the components in the motor controller 100 are assembled in the controller housing 6. The DC busbar injection molding 5 can be first connected to the motor controller 100 and then assembled with the controller housing 6. The assembly is relatively simple and can be conveniently operated.

[0098] In some embodiments of the present invention, Figure 1 and Figure 7 As shown, the DC busbar injection molded part 5 further includes a limiting boss 53, which is penetrated through the second avoidance hole 15, and the limiting boss 53 is in contact with the surface of the control board 2 close to the insulating board 1. At this time, the limiting boss 53 is limited between the insulating board 1 and the control board 2, which can make the assembly position of the DC busbar injection molded part 5 more reliable.

[0099] In some embodiments of the present invention, Figure 1 and Figure 7 As shown, the limiting boss 53 is U-shaped, and the first connecting seat 55 or the second connecting seat 57 is sleeved with the limiting boss 53. At this time, part of the first connecting seat 55 or the second connecting seat 57 passes through the third avoidance hole 23 of the control board 2, and the limiting boss 53 is limited between the insulating plate 1 and the control board 2, so that the assembly position of the DC busbar injection molding 5 can be more reliable.

[0100] The limiting boss 53 includes a magnetic focusing magnet 58, and a Hall sensor 25 is provided on one side of the control board 2 close to the insulating plate 1, and the Hall sensor 25 is arranged in the U-shaped opening of the limiting boss 53. A Hall magnetic field can be formed between the magnetic focusing magnets 58, and the Hall sensor 25 can detect the magnetic field effect of the Hall magnetic field, and can timely monitor the Hall magnetic field effect between the magnetic focusing magnets 58.

[0101] In some embodiments of the present invention, Figure 3 and Figure 5 As shown, the control board 2 and the insulating board 1 are connected by a first fastener; a stud 17 is provided on one side of the insulating board 1 close to the control board 2, a second through hole 26 is provided on the control board 2, and the first fastener is passed through the second through hole 26 and the stud 17. By providing the stud 17 on the insulating board 1 and the second through hole 26 on the control board 2, during the connection process of the control board 2 and the insulating board 1, the first fastener is respectively passed through the second through hole 26 and the stud 17, so that the connection process is relatively simple and the connection is relatively stable.

[0102] Optionally, a plurality of studs 17 may be provided on one side of the insulating plate 1 adjacent to the control board 2, and a plurality of second through holes 26, which are the same in number as the studs 17 and correspond one to one to each other, may be provided at corresponding positions of the control board 2, and a plurality of first fasteners may be respectively passed through the second through holes 26 and the studs 17 to ensure the stability of the connection between the control board 2 and the insulating plate 1.

[0103] For example, refer to Figure 5 Three studs 17 are provided on one side of the insulating plate 1 adjacent to the control board 2 , three second through holes 26 are provided on the control board 2 , and three first fasteners are respectively passed through the three second through holes 26 and the three studs 17 .

[0104] In some embodiments of the present invention, Figure 3 and Figure 5As shown, a first notch 27 is formed on the control board 2, and the first notch 27 is a notch formed on the outer periphery of the control board 2. A second notch 18 is formed on the insulating board 1, and the second notch 18 is a notch formed on the outer periphery of the insulating board 1 and is arranged opposite to the first notch 27. A low-voltage connector is provided on the control board 2, and the first notch 27 is used for connecting the low-voltage connector to the outside. By providing the first notch 27 on the control board 2 and the second notch 18 on the insulating board 1, a wiring harness, such as a sampling wiring harness, can be introduced into or led out of the low-voltage connector on the control board 2 through the notch, which can avoid the occurrence of a disorderly wiring harness arrangement in the motor controller 100. In addition, the first notch 27 is a notch formed on the outer periphery of the control board 2, and the second notch 18 is a notch formed on the outer periphery of the insulating board 1 and is arranged opposite to the first notch 27, which can reduce or avoid interference between the wiring harness and the motor controller 100 during the wiring process.

[0105] In some embodiments of the present invention, Figure 3 and Figure 5 As shown, there are multiple first notches 27, which are arranged at intervals along the circumference of the insulating plate 1, and there are multiple second notches 18, which are arranged at intervals along the circumference of the control board 2, and the multiple first notches 27 correspond to the multiple second notches 18 one by one. By providing multiple first notches 27 on the control board 2 and multiple second notches 18 on the insulating plate 1, various wiring requirements of multiple wiring harnesses can be met. In addition, multiple wiring harnesses can be introduced or led out from the multiple first notches 27 and the second notches 18, which can avoid the situation where the wiring harnesses in the motor controller 100 are arranged too chaotically.

[0106] It should be noted that the “plurality” in the present invention refers to two or more.

[0107] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the control board 2 is provided with a connector 28, and the insulating board 1 is provided with a first avoidance hole 19 for avoiding the connector 28. The connector 28 is inserted through the first avoidance hole 19 and connected to the driving board 3. By providing the first avoidance hole 19 on the insulating board 1, the connector 28 on the control board 2 is inserted through the first avoidance hole 19 and connected to the driving board 3, so that the signal transmission between the control board 2 and the driving board 3 can be realized. In addition, the connector 28 of the control board 2 is accommodated in the first avoidance hole 19, and the first avoidance hole 19 can protect and position the connector 28.

[0108] In some embodiments of the present invention, Figure 1As shown, the motor controller 100 further includes a housing 6 and a capacitor 4. The capacitor 4, the drive board 3, the insulating board 1 and the control board 2 are arranged in the housing 6. The insulating board 1 and the housing 6 are bonded by adhesive. By providing the controller housing 6, the controller housing 6 can protect the motor controller 100. In addition, the insulating board 1 and the controller housing 6 are bonded by adhesive, and the connection method is relatively simple and can be conveniently operated.

[0109] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the outer circumference of the insulating plate 1 is formed with a glue groove 101 for accommodating glue, and there are multiple glue grooves 101, which are arranged at intervals along the circumference of the insulating plate 1, and the insulating plate 1 and the controller housing 6 are bonded by the glue contained in the glue grooves 101. By arranging the glue grooves 101 on the outer circumference of the insulating plate 1, the glue can be contained in the glue grooves 101, which can prevent the glue from flowing to other parts of the motor controller 100 under the action of its own gravity, and at the same time, it can facilitate the bonding operation of the insulating plate 1 and the controller housing 6. In addition, there are multiple glue grooves 101, and the multiple glue grooves 101 are arranged at intervals along the circumference of the insulating plate 1, which can make the connection between the insulating plate 1 and the controller more uniform.

[0110] In some embodiments of the present invention, the motor controller 100 further includes an end cover, which is disposed at one axial end of the housing 6, and the control board 2 is disposed at one end of the housing 6 in the axial direction close to the end cover. When inspecting and repairing the motor controller 100, the control board 2 can be directly inspected or replaced after the end cover is removed, so that the maintenance process of the motor controller 100 is relatively simple.

[0111] In some embodiments of the present invention, Figure 1 and Fig.13 As shown, the capacitor 4 includes a capacitor housing 41 and a capacitor core 43. The capacitor housing 41 is provided with an annular accommodating cavity 45, and the capacitor core 43 is arranged in the accommodating cavity 45, which can better protect the capacitor core 43 and prevent the capacitor core 43 from being impacted by external forces as much as possible.

[0112] In some embodiments of the present invention, the capacitor 4 further includes a housing 44 and a power tube 42. The housing 44 is an annular tube, and the power tube 42 is arranged circumferentially along the inner wall of the annular tube. The capacitor 4 is evenly distributed along the circumferential direction of the housing 6 of the motor controller 100, and the charge contained in the capacitor 4 is relatively evenly distributed.

[0113] The motor assembly according to the embodiment of the utility model includes a motor and a motor controller 100 according to the above embodiment of the utility model. The motor controller 100 is arranged at one axial end of the motor. When inspecting and repairing the motor controller 100, only one axial end of the motor can be disassembled, so that the maintenance process of the motor controller 100 is relatively simple. The motor controller 100 can drive the motor to move. For example, the motor controller 100 can be used in electric vehicles. The motor controller 100 is electrically connected to the power battery of the electric vehicle, can obtain electrical energy from the power battery, and convert the direct current of the power battery into alternating current, and then drive the motor to work, so as to meet the different requirements of the motor for speed and torque under various working conditions.

[0114] According to the motor assembly of the embodiment of the utility model, by arranging the drive board 3, the insulating board 1 and the control board 2 along the first direction, the motor controller 100 can be avoided to occupy the installation space in the radial direction of the motor as much as possible, and the multiple components are stacked in sequence to minimize the gap between the multiple components in the axial direction. The first component 22 on the control board 2 is at least partially arranged in the insulating board 1, and the second component on the drive board 3 is at least partially arranged in the insulating board 1. The insulating board 1 can better avoid the installation of the first component 22 on the control board 2 and the second component on the drive board 3, which can reduce the installation space occupied by the motor controller 100 in the axial direction, so that the overall volume of the motor controller 100 is smaller, and the installation space occupied by the motor controller 100 is smaller.

[0115] The electric assembly according to the embodiment of the utility model includes the above-mentioned motor assembly and transmission.

[0116] According to the electric assembly of the embodiment of the utility model, by arranging the drive board 3, the insulating board 1 and the control board 2 along the first direction, the motor controller 100 can be avoided to the maximum extent from occupying the installation space in the radial direction of the motor, and the multiple components are stacked in sequence to minimize the gap between the multiple components in the axial direction. The first component 22 on the control board 2 is at least partially arranged in the insulating board 1, and the second component on the drive board 3 is at least partially arranged in the insulating board 1. The insulating board 1 can better avoid the installation of the first component 22 on the control board 2 and the second component on the drive board 3, and can reduce the installation space occupied by the motor controller 100 in the axial direction, so that the overall volume of the motor controller 100 is smaller, and the installation space occupied by the motor controller 100 is smaller.

[0117] The vehicle according to the embodiment of the utility model comprises the above-mentioned electric assembly, wherein the vehicle may be an electric vehicle.

[0118] According to the vehicle of the embodiment of the utility model, by arranging the drive board 3, the insulating board 1 and the control board 2 along the first direction, the motor controller 100 can be avoided to occupy the installation space in the radial direction of the motor as much as possible, and the multiple components are stacked in sequence to minimize the gap between the multiple components in the axial direction. The first component 22 on the control board 2 is at least partially arranged in the insulating board 1, and the second component on the drive board 3 is at least partially arranged in the insulating board 1. The insulating board 1 can better avoid the installation of the first component 22 on the control board 2 and the second component on the drive board 3, which can reduce the installation space occupied by the motor controller 100 in the axial direction, so that the overall volume of the motor controller 100 is smaller, and the installation space occupied by the motor controller 100 is smaller.

[0119] Other structures and operations of the motor controller 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0120] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0121] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A motor controller, characterized in that: include: A driving plate (3), an insulating plate (1) and a control plate (2), wherein the driving plate (3), the insulating plate (1) and the control plate (2) are stacked in sequence along a first direction; The first component (22) on the control board (2) is at least partially arranged in the insulating board (1), and / or the second component on the drive board (3) is at least partially arranged in the insulating board (1).

2. The motor controller according to claim 1, characterized in that: The first component (22) on the control board (2) and the second component on the drive board (3) are arranged in a staggered manner.

3. The motor controller according to claim 1, characterized in that: The insulating plate (1) and the control plate (2) are connected to form a whole, and the whole formed by the insulating plate (1) and the control plate (2) is connected to the driving plate (3).

4. The motor controller according to claim 1, characterized in that: The insulating plate (1) is provided with a receiving groove (11), the first component (22) is arranged on a side of the control plate (2) close to the insulating plate (1), and at least a part of the first component (22) is fixed in the receiving groove (11).

5. The motor controller according to claim 4, characterized in that: The containing groove (11) and the first component (22) are bonded together by adhesive.

6. The motor controller according to claim 5, characterized in that: The bottom (112) of the receiving groove (11) is provided with a first through hole (111), the first component (22) is bonded to the bottom (112) of the receiving groove (11) by means of adhesive, and part of the adhesive is embedded in the first through hole (111); or, the bottom (112) of the receiving groove (11) is provided with a first through hole (111), the first component (22) is bonded to the bottom (112) of the receiving groove (11) by means of adhesive, and part of the adhesive is embedded in the first through hole (111), and the adhesive is provided on both side surfaces of the bottom (112).

7. The motor controller according to claim 4, characterized in that: The insulating plate (1) comprises a second plate body (142) and a third plate body (143), wherein the second plate body (142) and the third plate body (143) form a first groove (144), wherein a groove opening (113) of the first groove (144) faces the driving plate (3), and the third plate body (143) is provided with at least one accommodating groove (11), wherein the groove opening (113) of the accommodating groove (11) is arranged on the third plate body (143), wherein a groove wall of the accommodating groove (11) is at least partially arranged in the first groove, and the groove opening (113) of the accommodating groove (11) faces the control plate (2).

8. The motor controller according to claim 7, characterized in that: The insulating plate (1) further comprises a first plate body (141), wherein the first plate body (141) and the third plate body (143) are arranged in parallel, and the second plate body (142) is an annular plate, and the second plate body (142) is respectively connected to the first plate body (141) and the third plate body (143).

9. The motor controller according to claim 7, characterized in that: The invention also includes a first reinforcing rib (131), wherein the first reinforcing rib (131) is arranged around the second plate body (142), the first reinforcing rib (131) encloses a second groove (1311), the first groove (144) and the second groove (1311) are connected to form a receiving space (1312) opening toward the driving plate, and the receiving groove (11) is completely located in the receiving space (1312).

10. The motor controller according to claim 9, characterized in that: The second component is arranged on a side of the driving plate (3) facing the insulating plate (1), and the second component is at least partially arranged in the accommodating space (1312) and is staggered with the accommodating groove (11).

11. The motor controller according to claim 9, characterized in that: Also includes: A DC busbar injection molded part (5), the DC busbar injection molded part (5) being arranged on a side of the drive board (3) adjacent to the insulating board (1), the DC busbar injection molded part (5) comprising a first connecting piece (51) and a second connecting piece (52), the first connecting piece (51) and the second connecting piece (52) being at least partially stacked and insulated in the first direction.

12. The motor controller according to claim 11, characterized in that: A third reinforcing rib (133) is provided on a side of the third plate body (143) away from the control board (2), the third reinforcing rib (133) is arranged around the overlapping portion of the first connecting plate (51) and the second connecting plate (52), and the third reinforcing rib (133) is completely located in the accommodating space (1312).

13. The motor controller according to claim 12, characterized in that: The DC busbar injection molded part (5) further comprises: A plastic part (54), wherein the plastic part (54) wraps the stacked portion of the first connecting piece (51) and the second connecting piece (52); in the first direction, the plastic part (54) includes a first plastic layer (541) covering the first connecting piece (51) and a second plastic layer (542) covering the second connecting piece (52); in the first direction, the size of the third reinforcing rib (133) is not greater than the sum of the sizes of the first connecting piece (51) and the first plastic layer (541).

14. The motor controller according to claim 13, characterized in that: A second reinforcing rib (132) is provided on a side of the third plate body (143) away from the control plate (2), wherein the second reinforcing rib (132) at least indirectly connects the first reinforcing rib (131) and the third reinforcing rib (133), and in the first direction, the size of the third reinforcing rib (133) is the same as the size of the second reinforcing rib (132).

15. The motor controller according to claim 11, characterized in that: The DC busbar injection molded part (5) comprises a first connection seat (55) and a second connection seat (57); the first connection seat (55) is connected to one end of the first connection sheet (51) in the length direction; the second connection seat (57) is connected to one end of the second connection sheet (52) in the length direction; the axial direction of the first connection seat (55) is the same as the thickness direction of the first connection sheet (51); the axial direction of the second connection seat (57) is the same as the thickness direction of the second connection sheet (52); a second avoidance hole (15) is formed on the insulating plate (1); a third avoidance hole (23) is formed on the control plate (2); the first connection seat (55) and the second connection seat (57) are penetrated through the second avoidance hole (15) and the third avoidance hole (23).

16. The motor controller according to claim 11, characterized in that: A first fixing column (56) is formed on the DC busbar injection molded part (5), a first fixing hole (16) is formed on the insulating plate (1), a second fixing hole (24) is formed on the control plate (2), the first fixing column (56) is inserted through the first fixing hole (16) and the second fixing hole (24), and a second fastener is inserted through the first fixing column (56).

17. The motor controller according to claim 15, characterized in that: The DC busbar injection molded part (5) further comprises: A limiting boss (53), wherein the limiting boss (53) is penetrated through the second avoidance hole, and the limiting boss (53) is in contact with a surface of the control board (2) close to the insulating board (1).

18. The motor controller according to claim 17, characterized in that: The limiting boss (53) is U-shaped, and the limiting boss (53) is sleeved on the outer periphery of the first connecting seat (55) or the second connecting seat (57). The limiting boss (53) includes a magnetic concentrating magnet (58). A Hall sensor (25) is provided on the side of the control board (2) close to the insulating board (1), and the Hall sensor (25) is arranged in the U-shaped opening of the limiting boss (53).

19. The motor controller according to claim 1, characterized in that: The control board (2) and the insulating board (1) are connected via a first fastener; a stud (17) is provided on one side of the insulating board (1) close to the control board (2); a second through hole (26) is provided on the control board (2); and the first fastener is inserted through the second through hole (26) and the stud (17).

20. The motor controller according to claim 1, characterized in that: The control board (2) is formed with a first notch (27), the first notch (27) being formed on the outer peripheral edge of the control board (2); the insulating board (1) is formed with a second notch (18), the second notch (18) being formed on the outer peripheral edge of the insulating board (1) and being arranged opposite to the first notch (27); the control board (2) is provided with a low-voltage connector, the first notch (27) being used for connecting the low-voltage connector to the outside.

21. The motor controller according to claim 1, characterized in that: The control board (2) is provided with a plug connector (28), the insulating board (1) is provided with a first avoidance hole (19) for avoiding the plug connector (28), and the plug connector (28) is inserted into the first avoidance hole (19) and connected to the drive board (3).

22. The motor controller according to claim 1, characterized in that: It also comprises a shell (6) and a capacitor (4), wherein the capacitor (4), the drive board (3), the insulating board (1) and the control board (2) are arranged in the shell (6), and the insulating board (1) and the shell (6) are bonded by adhesive.

23. The motor controller according to claim 22, characterized in that: The motor controller (100) further comprises: An end cover is arranged at one axial end of the shell (6), and the control panel (2) is arranged at one end of the shell (6) in the axial direction close to the end cover.

24. A motor assembly, characterized in that: include: Motor; According to the motor controller (100) according to any one of claims 1 to 23, the motor controller (100) is arranged at one axial end of the motor.

25. An electric assembly, characterized in that: include: The motor assembly and transmission of claim 24.

26. A vehicle, characterized in that: include: The electric powertrain assembly according to claim 25.

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