Motor controller, motor assembly with same and vehicle

Abstract

The utility model discloses a motor controller, a motor assembly with the motor controller and a vehicle with the motor controller. According to the embodiment of the utility model, the motor controller comprises a bus capacitor and a three-phase connection assembly, the bus capacitor is provided with a central hole, and the bus capacitor is provided with a first installation part located in the central hole; the three-phase connecting assembly is suitable for being installed on a shell of the motor controller, the three-phase connecting assembly is suitable for being connected with a winding of the motor, the three-phase connecting assembly is provided with a second installation part, and the second installation part is fixedly connected with the first installation part. According to the motor controller provided by the utility model, the first mounting part is arranged at the central hole, and the mounting points are additionally arranged on the inner side of the bus capacitor, so that a through hole and a stud do not need to be additionally arranged in the bus capacitor, the occupation of the internal space of the bus capacitor can be reduced, and a capacitor core with a larger size and a higher specification can be arranged in the same space; the space utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor controller and a motor component and a vehicle having the same. Background Art

[0002] In the related art, the motor assembly includes a casing, a partition is provided in the casing to separate the casing into a motor mounting cavity and a motor controller mounting cavity, an annular capacitor is installed in the motor controller mounting cavity, the annular capacitor includes an annular shell, a core accommodating cavity is provided in the annular shell, a plurality of connecting columns are provided in the core accommodating cavity, the connecting columns and the partition are connected to achieve the purpose of fixing the capacitor, the connecting columns occupy the space of the core accommodating cavity, and will affect the capacitance value of the capacitor. 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, one purpose of the utility model is to provide a motor controller that can improve space utilization.

[0004] The utility model also provides a motor component.

[0005] The utility model also provides a vehicle.

[0006] According to an embodiment of the utility model, the motor controller includes a bus capacitor and a three-phase connection component, the bus capacitor is provided with a center hole, and the bus capacitor is provided with a mounting portion located at the center hole; the three-phase connection component is suitable for being installed to the housing of the motor controller, the three-phase connection component is suitable for connecting the winding of the motor, and the three-phase connection component is provided with a second mounting portion, and the second mounting portion is fixedly connected to the first mounting portion.

[0007] According to the motor controller of the utility model, by setting the mounting part at the center hole and adding the mounting point on the inner side of the bus capacitor, there is no need to add through holes and studs inside the bus capacitor, which can reduce the occupation of the internal space of the bus capacitor, and can arrange capacitor cores with larger volume and higher specifications in the same space, thereby improving the utilization rate of the space; in addition, there is no need to add through holes inside the bus capacitor, which reduces the difficulty of shell manufacturing and processing, simplifies the bus capacitor structure, saves costs, and improves the yield rate and product quality; the mounting part of the bus capacitor is fixedly connected to the three-phase connection component, and the bus capacitor is fixed to the shell of the motor controller using the three-phase connection component, without adding new structural parts, which can reduce costs.

[0008] In some embodiments, the motor controller further includes a first fixed connector, wherein the first fixed connector passes through the first mounting portion and is fixed to the second mounting portion.

[0009] In some embodiments, the three-phase connection assembly is provided with a plurality of second mounting portions, and there are a plurality of first mounting portions, and the plurality of first mounting portions and the plurality of second mounting portions are arranged in a one-to-one correspondence.

[0010] In some embodiments, there are three second mounting portions which are circumferentially and equally spaced.

[0011] In some embodiments, the busbar capacitor includes a capacitor housing and a capacitor core, the capacitor housing has an annular accommodating cavity, the capacitor core is arranged in the accommodating cavity, the capacitor housing includes an annular outer wall and an annular inner wall, the annular inner wall is located on the inner side of the annular outer wall and the annular inner wall defines the center hole, and the first mounting portion is fixed to the annular inner wall.

[0012] In some embodiments, the three-phase connection assembly includes three single-phase connectors and a base, the three single-phase connectors are fixed on the base, the second mounting portion is fixed to the base, one end of the three single-phase connectors is used to connect the winding of the motor, and the other end is used to connect the AC end of the power module of the motor controller.

[0013] In some embodiments, the capacitor housing and the base are both made of insulating materials.

[0014] In some embodiments, the motor controller also includes a driving board, and the bus capacitor also includes a first capacitor connection row and a second capacitor connection row fixed in the capacitor housing, one end of the first capacitor connection row is provided with a first capacitor connection terminal and the other end is provided with a plurality of first capacitor connection pins, one end of the second capacitor connection row is provided with a second capacitor connection terminal and the other end is provided with a plurality of second capacitor connection pins, the first capacitor connection row and the second capacitor connection row are respectively connected to the two axial ends of the capacitor core; and the plurality of first capacitor connection pins and the plurality of second capacitor connection pins are inserted into the driving board and welded to the driving board.

[0015] In some embodiments, the first capacitor connection row and the second capacitor connection row of the capacitor core are respectively encapsulated in the capacitor housing.

[0016] In some embodiments, a potting layer is formed on a side of the bus capacitor close to the driving board, a receiving groove is provided on the potting layer, and an electronic component at least partially disposed in the receiving groove is provided on the driving board.

[0017] In some embodiments, the electronic component is at least one pair of Y capacitors, and each pair of the Y capacitors shares a common ground terminal.

[0018] In some embodiments, the motor controller further includes a control board, the control board is provided with a first ground terminal, and the common ground terminal is electrically connected to the first ground terminal.

[0019] In some embodiments, the motor controller further includes a conductive connection column, wherein the connection column is disposed between the driving board and the control board, and the connection column is electrically connected to the common ground terminal and the first ground terminal respectively.

[0020] In some embodiments, the connection column and the Y capacitor are located on both sides of the driving board.

[0021] In some embodiments, the first grounding end is formed as a metal hole, and the motor controller further includes a third fixed connecting member, and the third fixed connecting member passes through the driving plate and the connecting column and cooperates with the metal hole.

[0022] In some embodiments, the bus capacitor includes multiple groups of connecting pins, each group of the connecting pins includes the first capacitor connecting pin, the second capacitor connecting pin and the third connecting pin, the third connecting pin is connected to the single-line AC conductive bar, and the third connecting pin is connected to the AC end of the power tube through the second printed circuit on the driving board; the connecting pins include M groups, the Y capacitor includes N pairs, the N pairs of Y capacitors are arranged at equal intervals, the number of the accommodating slots is N, the N accommodating slots are arranged at equal intervals, M / N=A, A is an integer.

[0023] In some embodiments, in the radial direction of the bus capacitor, the connecting column is disposed in the middle of the bus capacitor.

[0024] In some embodiments, the distance between the connecting column and the center of the driving plate is a first distance, the distance between the connecting column and the edge of the driving plate is a second distance, and the first distance is greater than the second distance.

[0025] In some embodiments, a ratio of the first distance to the second distance ranges from 1.5 to 2.5.

[0026] In some embodiments, the motor controller further includes an isolation plate formed as an insulating member and located between the driving board and the control board.

[0027] In some embodiments, the isolation plate and the control plate are fixedly connected as an integral whole, and the isolation plate and the control plate are connected to the driving plate as a whole.

[0028] The motor assembly according to the embodiment of the utility model comprises a motor and a motor controller. The motor controller is the motor controller according to the embodiment of the utility model, and the motor controller is electrically connected to the motor.

[0029] According to the motor assembly of the utility model, by setting the above-mentioned motor controller, by setting the mounting part at the center hole, adding a mounting point on the inner side of the bus capacitor, there is no need to add through holes and studs inside the bus capacitor, which can reduce the occupation of the internal space of the bus capacitor, and a capacitor core with a larger volume and higher specifications can be arranged in the same space, thereby improving the utilization rate of the space; in addition, there is no need to add through holes inside the bus capacitor, which reduces the difficulty of shell manufacturing and processing, simplifies the bus capacitor structure, saves costs, and improves the yield rate and product quality; the mounting part of the bus capacitor is fixedly connected to the three-phase connection component, and the bus capacitor is fixed to the shell of the motor controller using the three-phase connection component, without adding new structural parts, which can reduce costs.

[0030] In some embodiments, the motor assembly also includes a shell, a partition is provided in the shell, a portion of the shell and the partition define a housing of the motor, a portion of the shell and the partition define a housing of the motor controller, and the three-phase connection assembly is mounted to the partition.

[0031] In some embodiments, the capacitor housing is glued to the partition.

[0032] According to the vehicle of the embodiment of the utility model, it includes the motor assembly of the embodiment of the utility model. By setting the above-mentioned motor assembly, by setting the mounting part at the center hole, a mounting point is added on the inner side of the bus capacitor, and there is no need to add through holes and studs inside the bus capacitor, which can reduce the occupation of the internal space of the bus capacitor, and a capacitor core with a larger volume and higher specifications can be arranged in the same space, thereby improving the utilization rate of the space; in addition, there is no need to add through holes inside the bus capacitor, which reduces the difficulty of shell manufacturing and processing, simplifies the bus capacitor structure, saves costs, and improves the yield rate and product quality; the mounting part of the bus capacitor is fixedly connected to the three-phase connection component, and the bus capacitor is fixed to the shell of the motor controller using the three-phase connection component, without adding new structural parts, which can reduce costs.

[0033] 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

[0034] 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:

[0035] Figure 1 It is an exploded diagram of a busbar capacitor, a Hall element and a three-phase connection component according to an embodiment of the utility model;

[0036] Figure 2is an exploded diagram of a busbar capacitor according to an embodiment of the utility model;

[0037] Figure 3 is a top view of a busbar capacitor according to an embodiment of the utility model;

[0038] Figure 4 is a three-dimensional diagram of a Hall element according to an embodiment of the utility model;

[0039] Figure 5 is a three-phase connection assembly according to an embodiment of the utility model;

[0040] Figure 6 is a three-dimensional diagram of a driving plate according to an embodiment of the utility model at a viewing angle;

[0041] Figure 7 is a three-dimensional diagram of a driving plate according to an embodiment of the utility model at another viewing angle;

[0042] Figure 8 is based on Figure 7 A magnified view at point A;

[0043] Fig. 9 It is a schematic diagram of the assembly of the control panel and the isolation panel according to an embodiment of the utility model;

[0044] Fig.10 It is a partial schematic diagram of a motor controller (without a control board and an isolation board) according to an embodiment of the utility model;

[0045] Fig.11 is an exploded view of a motor assembly according to an embodiment of the utility model;

[0046] Fig.12 is a cross-sectional view of a motor assembly according to an embodiment of the utility model;

[0047] Fig.13 is a schematic diagram of a motor assembly according to an embodiment of the utility model;

[0048] Fig.14 is a schematic diagram of a vehicle according to an embodiment of the utility model.

[0049] Reference numerals:

[0050] Vehicles 10,000

[0051] Motor assembly 1000,

[0052] Motor controller 100, motor 200, housing 300, motor chamber 301, electric control chamber 302, partition 400,

[0053] Busbar capacitor 1, center hole 11, first mounting portion 12, first capacitor connection row 131, first capacitor connection terminal 1311, second capacitor connection row 132, second capacitor connection terminal 1321, single-phase AC conductive row 14, single-phase wiring terminal 140, U-phase wiring terminal 141, V-phase wiring terminal 142, W-phase wiring terminal 143, mounting hole 144, U-direction mounting hole 1411, V-direction mounting hole 1421, W-direction mounting hole 1431, connecting pin 16 , first capacitor connecting pin 161, second capacitor connecting pin 162, third connecting pin 163, capacitor housing 17, accommodating cavity 171, annular outer wall 172, annular inner wall 173, capacitor core 18, encapsulation layer 19, accommodating groove 191, driving board 2, avoidance through hole 21, electronic components 22, Y capacitor 220, first Y capacitor pin 221, second Y capacitor pin 222, common ground terminal 23, driving board welding hole 24, driving board circuit network 25,

[0054] Three-phase connection component 3, second installation part 31, base 32, single-phase connection piece 33,

[0055] The first distance L1, the second distance L2,

[0056] Isolation board 5,

[0057] Hall element 6,

[0058] Connecting column 7,

[0059] Control board 8, first ground terminal 81;

[0060] DC busbar injection molding 9. 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", "upper", "lower", "front", "rear", "left", "right", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations 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 the 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 14 A motor controller 100 according to an embodiment of the present invention is described.

[0065] like Figure 1 and Figure 3 As shown, the motor controller 100 according to the embodiment of the present utility model includes a bus capacitor 1 and a three-phase connection component 3.

[0066] The bus capacitor 1 is provided with a center hole 11 and a first mounting portion 12, the first mounting portion 12 is located at the center hole 11, the first mounting portion 12 can be installed with a three-phase connection component 3, the three-phase connection component 3 is provided with a second mounting portion 31, and the second mounting portion 31 can be fixedly connected to the first mounting portion 12. By providing the first mounting portion 12, the convenience and stability of connecting the three-phase connection component 3 with the bus capacitor 1 can be improved.

[0067] The three-phase connection component 3 can be installed on the housing of the motor controller 100, and the bus capacitor 1 can be installed in the motor controller 100 through the three-phase connection component 3; the three-phase connection component 3 can be connected to the winding of the motor 200, and the three-phase connection component 3 can be connected to the AC end of the power module of the motor controller 100. In other words, the bus capacitor 1 can be fixed using the three-phase connection component 3 in the motor controller 100, without adding new structural parts, which can reduce costs.

[0068] In the related art, the motor assembly includes a casing, a partition is provided in the casing to separate the casing into a motor mounting cavity and a motor controller mounting cavity, an annular capacitor is installed in the motor controller mounting cavity, the annular capacitor includes an annular shell, a core accommodating cavity is provided in the annular shell, a plurality of connecting columns are provided in the core accommodating cavity, the connecting columns and the partition are connected to achieve the purpose of fixing the capacitor, the connecting columns occupy the space of the core accommodating cavity, and will affect the capacitance value of the capacitor.

[0069] In the present application, the first mounting portion 12 is arranged at the center hole 11 of the busbar capacitor 1, and a mounting point is added on the inner side of the busbar capacitor 1. There is no need to add through holes and studs inside the busbar capacitor 1, which can reduce the occupation of the internal space of the busbar capacitor 1. A capacitor core 18 with a larger volume and higher specifications can be arranged in the same space, thereby improving the utilization of the space. In addition, the present application does not need to add through holes inside the busbar capacitor 1, which reduces the difficulty of shell manufacturing and processing, simplifies the structure of the busbar capacitor 1, saves costs, and improves the yield rate and product quality.

[0070] According to the motor controller 100 of the utility model, by setting the first mounting portion 12 at the center hole 11, a mounting point is added on the inner side of the bus capacitor 1, and there is no need to add through holes and studs inside the bus capacitor 1, which can reduce the occupation of the internal space of the bus capacitor 1, and a capacitor core 18 with a larger volume and higher specifications can be arranged in the same space, thereby improving the utilization rate of the space; in addition, there is no need to add through holes inside the bus capacitor 1, which reduces the difficulty of shell manufacturing and processing, simplifies the structure of the bus capacitor 1, saves costs, and improves the yield rate and product quality; the first mounting portion 12 of the bus capacitor 1 is fixedly connected to the three-phase connection component 3, and the bus capacitor 1 is fixed to the shell of the motor controller 100 using the three-phase connection component 3, without adding new structural parts, which can reduce costs.

[0071] In some embodiments, the motor controller 100 further includes a first fixed connector, which passes through the first mounting portion 12 and is fixed to the second mounting portion 31. The first mounting portion 12 of the bus capacitor 1 is fixedly connected to the three-phase connection component 3 through the first fixed connector, thereby improving the stability and reliability of the connection between the bus capacitor 1 and the three-phase connection component 3. Optionally, the first fixed connector may be a screw.

[0072] like Figure 1 and Figure 4 As shown, for example, the Hall element 6 can be mounted on the second mounting portion 31 , and the Hall element 6 can detect the change of the magnetic field of the motor 200 . The installation and fixation of the Hall element 6 can be achieved through the second mounting portion 31 .

[0073] like Figure 2 and Figure 3As shown, for example, the first mounting portion 12 is constructed as a lug extending into the center hole 11, and the middle of the lug has a connecting hole. The first fixed connecting member can pass through the connecting hole in the middle of the lug and the second mounting portion 31 on the three-phase connecting component 3 to achieve connection between the three-phase connecting component 3 and the bus capacitor 1.

[0074] like Figure 1 and Figure 5 As shown, in some embodiments, the three-phase connection component 3 is provided with a plurality of second mounting parts 31, and the first mounting parts 12 are multiple, and the multiple first mounting parts 12 are arranged in a one-to-one correspondence with the multiple second mounting parts 31. By arranging the multiple second mounting parts 31 in a one-to-one correspondence with the multiple first mounting parts 12, on the one hand, the assembly accuracy between the second mounting parts 31 and the first mounting parts 12 is improved; on the other hand, the stability and reliability of the connection between the three-phase connection component 3 and the bus capacitor 1 can be improved.

[0075] For example, the second mounting portions 31 may be two, three, four, etc.; correspondingly, the first mounting portions 12 may also be two, three, four, etc. The number of the second mounting portions 31 and the first mounting portions 12 are the same and correspond one to one.

[0076] In the related art, the capacitor housing has 12 through holes, which requires 12 screws. The large number of screws results in a large amount of assembly work and high labor costs. In the present application, the number of the first mounting portions 12 can be three, which can reduce the number of first fixed connectors. Thus, the 12 screws can be reduced to 3 first fixed connectors, which reduces the use of first fixed connectors, reduces costs, and improves assembly efficiency.

[0077] like Figure 1 and Figure 5 As shown, in some specific embodiments, there are three second mounting parts 31, and the three second mounting parts 31 are arranged at equal intervals along the circumference. Correspondingly, there are three first mounting parts 12, and the three first mounting parts 12 are arranged at equal intervals along the circumference of the center hole 11. By arranging the second mounting parts 31 and the first mounting parts 12 at equal intervals along the circumference, it is beneficial to improve the reliability and strength of the connection. During the installation process, no matter how to rotate 120°, the three second mounting parts 21 and the three first mounting parts 12 can be arranged correspondingly, so as to facilitate the installation of the connection between the three-phase connection component 3 and the busbar capacitor 1.

[0078] like Figure 2 and Figure 3As shown, the busbar capacitor 1 includes a capacitor housing 17 and a capacitor core 18, and the capacitor housing 17 can accommodate the capacitor core 18. Specifically, the capacitor housing 17 has an annular accommodating cavity 171, and the capacitor core 18 can be arranged in the accommodating cavity 171. The capacitor housing 17 also includes an annular outer wall 172 and an annular inner wall 173, the annular inner wall 173 is located on the inner side of the annular outer wall 172, and the annular inner wall 173 has a central hole 11, and the annular inner wall 173 is also provided with a first mounting portion 12, and the first mounting portion 12 extends into the central hole 11.

[0079] Specifically, the annular outer wall 172 and the annular inner wall 173 are connected via the bottom wall of the shell, and a receiving chamber 171 is formed between the annular outer wall 172 , the annular inner wall 173 and the bottom wall of the shell.

[0080] Preferably, the projection of the capacitor housing 17 on the plane where the center hole 11 is located can have a circular ring shape with the center hole 11, which is easy to process and the circular ring-shaped capacitor housing 17 has a higher space utilization rate; optionally, the capacitor housing 17 can also be a square ring shape with the center hole 11.

[0081] Preferably, the center hole 11 can be located in the middle of the busbar capacitor 1, so that the force on the capacitor housing 17 can be more balanced. The first mounting portion 12 extends into the center hole 11. In other words, the first mounting portion 12 is arranged on the side of the annular inner wall 173 away from the annular outer wall 172, so that the first mounting portion 12 is arranged on the inner side of the annular inner wall 173 and on the outer side of the accommodating cavity 171, that is, the first mounting portion 12 does not need to occupy the space of the accommodating cavity 171.

[0082] In the related art, the annular capacitor includes an annular shell, a core accommodating cavity is provided in the annular shell, a plurality of connecting columns are provided in the core accommodating cavity, and the connecting columns are connected to the partition to achieve the purpose of fixing the capacitor. The connecting columns occupy the space of the core accommodating cavity, which will affect the capacitance value of the capacitor. In addition, the annular shell also needs to be provided with corresponding through holes through which fasteners can pass and close the core accommodating cavity. The existence of the through hole structure makes the processing of the annular shell complicated, and the difficulty and cost of manufacturing the annular shell are increased.

[0083] In the present application, the first mounting portion 12 is arranged at the center hole 11 of the bus capacitor 1, and mounting points are added on the inner side of the annular inner wall 173 and the outer side of the accommodating cavity 171. There is no need to occupy the accommodating cavity 171 for accommodating the capacitor core 18, which can reduce the occupation of the internal space of the bus capacitor 1. A capacitor core 18 with a larger volume and higher specifications can be arranged in the same space, thereby improving the utilization of the space and avoiding increasing the external contour of the bus capacitor 1, making the structure of the motor controller 100 more compact. In addition, the present application does not need to add a through hole on the capacitor housing 17, thereby reducing the difficulty of manufacturing and processing the capacitor housing 17, simplifying the structure of the bus capacitor 1, saving costs, and improving the yield rate and product quality.

[0084] The first mounting portion 12 may be fixed to the annular inner wall 173. By mounting the first mounting portion 12 on the annular inner wall 173, the structure of the motor controller 100 may be simplified and made more compact.

[0085] like Figure 1 and Figure 5 As shown, in some embodiments, the three-phase connection assembly 3 includes three single-phase connectors 33 and a base 32, the three single-phase connectors 33 are fixed on the base 32, the second mounting portion 31 is fixed to the base 32, one end of the three single-phase connectors 33 is used to connect the winding of the motor 200, and the other end is used to connect the AC end of the power module of the motor controller 100. Thus, the winding of the motor 200 is electrically connected to the motor controller 100 through the three-phase connection assembly 3.

[0086] In some embodiments, the capacitor housing 17 and the base 32 are both made of insulating materials, which can avoid interference between the bus capacitor 1 and the three-phase connection component 3 and improve the filtering effect.

[0087] like Figure 1-Figure 3 As shown, in some embodiments, three single-phase AC conductive bars 14 are provided in the bus capacitor 1, each single-phase AC conductive bar 14 includes a third connecting pin 163 and a single-phase terminal 140 extending into the center hole 11, the third connecting pin 163 is electrically connected to the driving board 2 of the motor controller 100; one end of the single-phase connector 33 is electrically connected to the single-phase terminal 140.

[0088] like Figure 1-Figure 3 As shown, in some embodiments, the single-phase AC conductive bar 14 includes a single-phase terminal 140, which can be inserted into the central hole 11, and a mounting hole 144 is provided on the single-phase terminal 140. The three-phase connection assembly 3 is provided with a single-phase connector 33, which is arranged on a side of the single-phase terminal 140 away from the driving board 2. The second fixed connector can pass through the mounting hole 144 and the single-phase connector 33, and the second fixed connector can be fixed in the single-phase connector 33. By providing the second fixed connector, the connection strength between the single-phase terminal 140 and the three-phase connection assembly 3 can be improved, and the stability and reliability of the connection can be improved.

[0089] For example, the second fixed connection member may be a conductive member, and the second fixed connection member may be electrically connected to a winding on the motor 200 .

[0090] like Figure 2 and Figure 3As shown, for example, the single-phase terminal 140 includes a U-phase terminal 141, a V-phase terminal 142, and a W-phase terminal 143, the U-phase terminal 141, the V-phase terminal 142, and the W-phase terminal 143 extend into the center hole 11, the U-phase terminal 141 is provided with a U-phase mounting hole 1441, the V-phase terminal 142 is provided with a V-phase mounting hole 1442, and the W-phase terminal 143 is provided with a W-phase mounting hole 1443, and the projections of the U-phase mounting hole 1441, the V-phase mounting hole 1442, and the W-phase mounting hole 1443 on the plane where the center hole 11 is located are all located inside the center hole 11. The single-phase connector 33 corresponds to the single-phase terminal 140 one by one, and the single-phase connector 33 of the three-phase connection assembly 3 supports the single-phase terminal 140, and the conductive second fixed connector passes through the mounting hole 144 and is fixed to the single-phase connector 33.

[0091] like Figure 6 , Figure 7 , Fig.10 and Fig.11 As shown, in some embodiments, the motor controller 100 further includes a driving board 2, and the bus capacitor 1 further includes a first capacitor connection row 131 and a second capacitor connection row 132 fixed in the capacitor housing 17, one end of the first capacitor connection row 131 is provided with a first capacitor connection terminal 1311 and the other end is provided with a plurality of first capacitor connection pins 161, one end of the second capacitor connection row 132 is provided with a second capacitor connection terminal 1321 and the other end is provided with a plurality of second capacitor connection pins 162, the first capacitor connection row 131 and the second capacitor connection row 132 are respectively connected to the axial ends of the capacitor core 18, and the plurality of first capacitor connection pins 161 and the plurality of second capacitor connection pins 162 are inserted into the driving board 2 and welded to the driving board 2. Thus, the capacitor core 18 and the driving board 2 can be electrically connected.

[0092] like Figure 2 and Figure 3 As shown, in some embodiments, the capacitor core 18, the first capacitor connection row 131 and the second capacitor connection row 132 are respectively potted in the capacitor housing 17, so that the potting layer 19 covers the capacitor core 18, the first capacitor connection row 131 and the second capacitor connection row 132. The capacitor housing 17 and the potting layer 19 can protect the first capacitor connection row 131 and the second capacitor connection row 132, thereby improving the service life of the motor controller 100.

[0093] like Figure 2 and Figure 3As shown, in some embodiments, a potting layer 19 is formed on one side of the bus capacitor 1 close to the driving board 2, and a receiving groove 191 is provided on the potting layer 19. The driving board 2 is provided with an electronic component 22 at least partially arranged in the receiving groove 191. The capacitor housing 17 and the potting layer 19 can protect and integrate multiple capacitor cores 18, so that the structure of the bus capacitor 1 is more compact; the receiving groove 191 is arranged on the potting layer 19, and the potting layer 19 is recessed along the side away from the driving board 2 to form the receiving groove 191. The receiving groove 191 can accommodate the electronic component 22, and the cooperation between the receiving groove 191 and the electronic component 22 can also realize the installation positioning of the potting layer 19.

[0094] It can be understood that the multiple capacitor cores 18 are covered by the potting layer 19 to improve the overall structural strength of the bus capacitor 1 and provide protection for the multiple capacitor cores 18. The potting layer 19 can separate the multiple capacitor cores 18 from the external environment to prevent the multiple capacitor cores 18 from being affected by external thermal interference, electromagnetic interference and other hazards.

[0095] In addition, a receiving groove 191 is provided on the side of the potting layer 19 facing the driving board 2; when the driving board 2 and the bus capacitor 1 are assembled, the electronic components 22 on the driving board 2 can be accommodated in the receiving groove 191 of the potting layer 19. Through the cooperation between the electronic components 22 and the potting layer 19, the electronic components 22 and the potting layer 19 can be mutually limited, so that the driving board 2 and the bus capacitor 1 can be stably assembled. In combination with the aforementioned embodiment, since the receiving groove 191 is arranged on the potting layer 19, after the driving board 2 and the bus capacitor 1 are assembled, the receiving groove 191 can also provide a certain protection for the electronic components 22 on the driving board 2, so as to further improve the structural strength of the motor controller 100 and improve the working stability of the motor 200.

[0096] In addition, by setting the aforementioned receiving groove 191 on the potting layer 19, the receiving groove 191 and the potting layer 19 on the surface of the bus capacitor 1 are not on the same horizontal plane, but are lower than the height of the potting layer 19. This can increase the creepage distance between the electronic components 22 and the multiple capacitor cores 18, prevent discharge and other hazards between the capacitor cores 18 and the electronic components 22, and improve the safety performance of the motor controller 100.

[0097] In addition, in actual application, the driving board 2 and the bus capacitor 1 can be assembled only through the cooperation of the electronic components 22 and the receiving grooves 191 to improve the assembly efficiency of the driving board 1 and the bus capacitor 1; of course, the cooperation of the electronic components 22 and the receiving grooves 191 can be used as an assembly aid between the driving board 2 and the bus capacitor 1. For example, the driving board 2 and the bus capacitor 1 are pre-positioned by first cooperating with the electronic components 22 and the receiving grooves 191, and then fixedly connected by bolt connection, bonding and other connection methods. These are all within the protection scope of the present utility model.

[0098] Therefore, in summary, the motor controller 100 in the embodiment of the utility model is provided with a receiving groove 191 on the bus capacitor 1, and the electronic components 22 on the driving board 2 can cooperate with the receiving groove 191 to form a limiting relationship, so as to realize the positioning installation of the bus capacitor 1 and the driving board 2, thereby improving the installation efficiency of the controller.

[0099] like Figure 7 , Figure 8 and Fig.11 As shown, in some embodiments, the electronic component 22 is at least one pair of Y capacitors 220, and each pair of Y capacitors 220 shares a common ground terminal 23. The Y capacitor 220 includes a first Y capacitor pin 221 and a second Y capacitor pin 222, and the first Y capacitor pin 221 and the second Y capacitor pin 222 are integrated on the driving board circuit network 25 of the driving board 2 to connect the bus capacitor 1, and the bus capacitor 1 is electrically connected to the driving board circuit network 25.

[0100] like Fig. 9 As shown, in some embodiments, the motor controller 100 also includes a control board 8, on which a first ground terminal 81 is provided, and the common ground terminal 23 can be electrically connected to the first ground terminal 81, so that when the driving board 2 drives the control board 8 to flow direct current, the direct current is filtered through the bus capacitor 1, and then the setting program of the control board 8 is used to adjust the (IGBT insulated gate bipolar transistor) switch to complete the conversion of direct current into alternating current, and the alternating current output is provided to the motor 200 for operation.

[0101] This arrangement can simplify the grounding circuit of the Y capacitor 220 on the driving board 2, and can play a filtering role after the Y capacitor 220 is grounded, that is, it can filter out high-frequency noise in the circuit and improve the stability of the motor controller 100; and it can also reduce the impact of electromagnetic interference on the circuit in the motor controller 100, improve the anti-interference ability of the circuit, and ensure the normal operation of the motor controller 100.

[0102] The grounding terminal of the Y capacitor 220 is electrically connected to the first grounding terminal 81 of the control board 8, which can be achieved in different ways; for example, the grounding terminal of the Y capacitor 220 can be connected to the first grounding terminal 81 of the control board 8 by means of a wire connection, welding, a conductive connector, etc. By electrically connecting the grounding terminal of the Y capacitor 220 to the first grounding terminal 81 of the control board 8, the Y capacitor 220 is filtered by grounding. Compared with the related art: the paired Y capacitors 220 are combined with the filter components, the motor controller 100 in the embodiment of the utility model can save space and optimize the grounding structure of the Y capacitor 220, so that the grounding of the Y capacitor 220 is easier to achieve, thereby improving the efficiency of assembly.

[0103] Of course, the Y capacitor 220 can be set on different sides of the driving board 2; for example, the Y capacitor 220 can be set on one side of the driving board 2; for another example, the Y capacitor 220 can also be set on the other side of the driving board 2; or, the Y capacitor 220 can also be set at different positions of the driving board 2, that is, the center position or the edge position, and adjusted according to the actual structure of the motor controller 100, which is also within the protection scope of the present utility model.

[0104] like Figure 6 and Fig.11 As shown, in some embodiments, the motor controller 100 also includes a connecting column 7, which can be conductive. The connecting column 7 is arranged between the driving board 2 and the control board 8, and the connecting column 7 is electrically connected to the common ground terminal 23 and the first ground terminal 81 respectively, that is, the common ground terminal 23 is electrically connected to the first ground terminal 81 through the connecting column 7. Thus, the second Y capacitor pin 222 can be electrically connected to the connecting column 7, and the Y capacitor 220 can filter the bus capacitor 1. At the same time, the connecting column 7 plays a role in supporting the control board 8. In short, by setting the connecting column 7, the grounding line of the Y capacitor 220 can be optimized, that is, the line between the control board 8 and the driving board 2 can be reduced, so that the internal circuit structure is more compact and neat, that is, the integration of the motor controller 100 is improved.

[0105] like Figure 6-Figure 8 As shown, in some embodiments, the connection column 7 and the Y capacitor 220 are located on both sides of the driving board 2. The connection column 7 is located on the side of the driving board 2 away from the bus capacitor 1, and the Y capacitor 220 is located on the side of the driving board 2 close to the bus capacitor 1 and the Y capacitor 220 can be accommodated in the receiving groove 191 of the bus capacitor 1.

[0106] For example, the common ground terminal 23 of the Y capacitor 220 is electrically connected to the connecting column 7, which can act as a stable supporting structure to make the driving board 2 more evenly stressed, thereby reducing or avoiding the problem of uneven stress between electrical components caused by excessive mechanical restrictions.

[0107] Among them, the driving board 2 has two opposite sides, the connecting column 7 can be set on one side of the driving board 2, and the Y capacitor 220 can be set on the other side of the driving board 2; in actual application, one side of the driving board 2 is opposite to the control board 8, and the other side of the driving board 2 is away from the control board 8. The connecting column 7 can be set on one side of the driving board 2 and connected to the control board 8, and electronic components 22 are provided on one side of the driving board 2. Therefore, in order to facilitate the arrangement of the connecting column 7, the Y capacitor 220 can be set on the other side of the driving board 2, thereby improving the space utilization on the driving board 2 and making the overall structure of the motor controller 100 more compact.

[0108] In addition, the connection column 7 and the common grounding terminal 23 of the Y capacitor 220 are located opposite to each other on the driving board 2 , which facilitates the electrical connection between the connection column 7 and the common grounding terminal 23 .

[0109] like Figure 6 and Figure 7 As shown, in some specific examples, in the up and down directions, the control board 8 can be located above the driving board 2, and electronic components 22 can be provided above the driving board 2. By arranging a connecting column 7 above the driving board 2, the connecting column 7 can support the control board 8 above the driving board 2 to form a stable clearance space between the driving board 2 and the control board 8. The clearance space can be used to avoid the electronic components 22 on the driving board 2, and of course, it can also be used to avoid the electronic components 22 on the control board 8.

[0110] It should be noted that the orientation indicated by "upper" or the like above the above-mentioned driving board 2 is a positional relationship, which is only for the purpose of simplifying the description of the present invention, and does not refer to a specific orientation that the motor controller 100 must have. It is not a limitation of the present invention. Without changing the design principle of the utility model, changing the relative position between the driving board 2 and the control board 8 to achieve the technical effect in the embodiment of the utility model is still within the protection scope of the present invention; in other words, the control board 8 can also be located on the left side of the driving board 2, or on the right side of the driving board 2, etc.

[0111] like Fig. 9 As shown, in some embodiments, the first grounding terminal 81 is formed as a metal hole, and the motor controller 100 further includes a third fixed connector, which is passed through the driving board 2 and the connecting column 7, and the third fixed connector can cooperate with the metal hole. For the driving board 2, a Y capacitor 220 is provided on the driving board 2, and the second Y capacitor pin 222 is welded to the common grounding terminal 23. At the same time, the connecting column 7 is fixed with the third fixed connector. By locking the third fixed connector and welding the connecting column 7 to the driving board 2, the connecting column 7 can be more firmly fixed to the driving board 2, and the connecting column 7 is not easily bent or deformed, thereby improving the rigidity and anti-deformation ability of the connecting column 7, thereby improving the reliability of the product.

[0112] It is understandable that, structurally, the structure of the Y capacitor 220 is relatively small, so the time required to process the receiving groove 191 on the encapsulation layer 19 is short and the efficiency is high; and the Y capacitor 220 itself has strong reliability, and the Y capacitor 220 and the receiving groove 191 are arranged in coordination, which can improve the installation strength between the drive board 2 and the bus capacitor 1, thereby improving the overall structural strength of the motor controller 100. From a safety perspective, the insulating material of capacitors such as the Y capacitor 220 is generally designed to be relatively thin, so under the same voltage conditions, the creepage distance of the Y capacitor 220 is smaller than that of other electronic components 22, so by positioning the Y capacitor 220 and the receiving groove 191, the discharge hazard between the drive board 2 and the bus capacitor 1 can be avoided, thereby improving the safety performance of the motor controller 100.

[0113] For example, the second fixing connection member may be a screw.

[0114] For example, the third fixing connection member may be a screw.

[0115] For example, a blind hole with a thread is provided in the connection column 7 , and the connection column 7 can be connected to the corresponding first grounding terminal 81 on the control board 8 by means of screws and bolts.

[0116] Combination Figure 2 , Figure 3 and Fig.11 In some embodiments of the present invention, the bus capacitor 1 is provided with a connecting pin 16 at the edge of the bus capacitor 1, and the connecting pin 16 is welded to the driving board 2. By welding the connecting pin 16 to the driving board 2, the connection between the bus capacitor 1 and the driving board 2 is stable and easy to install.

[0117] Combination Figure 2 and Figure 3 , wherein the connection pins 16 include multiple groups, each group of connection pins 16 includes a first capacitor connection pin 161 and a second capacitor connection pin 162, the first capacitor connection pin 161 and the second capacitor connection pin 162 are respectively connected to the first axial end and the second axial end of the capacitor core 18; multiple groups of connection pins 16 are arranged at equal intervals along the driving board 2. For example, the first capacitor connection pin 161 can be a positive connection pin, and the second capacitor connection pin 162 can be a negative connection pin. The first capacitor connection pin 161 can be connected to the first axial end of the capacitor core 18, and the second capacitor connection pin 162 can be connected to the second axial end of the capacitor core 18. In this way, the bus capacitor 1 can be connected to the circuit of the motor controller 100, and the bus voltage can be smoothed by the bus capacitor 1 to avoid the influence of voltage fluctuations on the motor controller 100, thereby improving the stability of the operation of the motor controller 100, and multiple groups of connection pins 16 are arranged at equal intervals along the driving board 2, which can facilitate the assembly of the bus capacitor 1 and the driving board 2.

[0118] In addition, combined Figure 8 Each pair of Y capacitors 220 may further include a first Y capacitor pin 221 and a second Y capacitor pin 222, and the first Y capacitor pin 221 and the second Y capacitor pin 222 are respectively connected to the first capacitor connection pin 161 and the second capacitor connection pin 162. For example, the first capacitor connection pin 161 may be a positive electrode connection pin, and the second capacitor connection pin 162 may be a negative electrode connection pin, and the positive electrode connection pin and the negative electrode connection pin are respectively indirectly connected to the positive electrode and the negative electrode of the busbar. For example, the connection between the Y capacitor 220 and the busbar capacitor 1 may be connected through the driver board circuit network 25 on the driver board 2.

[0119] Combination Figure 2 and Figure 3 In some embodiments of the utility model, each group of connection pins 16 also includes a third connection pin 163, the third connection pin 163 is connected to the single-phase AC conductive bar 14, and the third connection pin 163 is connected to the AC end of the power tube through the printed circuit on the driving board 2. Specifically, the unidirectional AC conductive bar 14 can be connected to the unidirectional AC power and connected to the AC end of the power tube through the printed circuit on the driving board 2. Among them, the unidirectional AC conductive bar 2 is connected with the third connection pin 16. After the driving board 2 and the bus capacitor 1 are assembled, the third connection pin 163 of the unidirectional AC conductive bar 2 can be connected to the printed circuit on the driving board 2, thereby connecting the AC end of the power tube, so as to achieve the filtering effect on the motor controller 100, so as to reduce electromagnetic interference.

[0120] Optionally, the third connecting pins 163 may include two, and the two third connecting pins 163 are both connected to the printed circuit on the driving board 2 to improve the stability of the connection.

[0121] like Figure 2 and Figure 3 As shown, in some embodiments of the utility model, the bus capacitor 1 includes multiple groups of connecting pins 16, each group of connecting pins 16 includes a first capacitor connecting pin 161, a second capacitor connecting pin 162 and a third connecting pin 163, the third connecting pin 163 is connected to the single-phase AC conductive bar 14, and the third connecting pin 163 is connected to the AC end of the power tube through the printed circuit on the driving board 2; the connecting pins 16 include M groups, the Y capacitor 220 includes N pairs, and the N pairs of Y capacitors 220 are arranged at equal intervals, M / N=A, and A is an integer. For example, M=12, N=3, and A=4. In this way, the distances between the positive and negative poles of the bus capacitor 1 are consistent, the filtering effect is consistent, and a better filtering effect can be achieved.

[0122] In addition, M groups of connecting pins 16 can be arranged at equal intervals along the driving board 2. It can be understood that after the driving board 2 and the bus capacitor 1 are assembled, the M groups of connecting pins 16 on the bus capacitor 1 can be arranged at circumferential intervals along the driving board 2. Therefore, the distances between adjacent groups of connecting pins 16 are equal, and a printed circuit is provided on the driving board 2. During assembly, the driving board 2 is rotated at any angle relative to the bus capacitor 1. When any group of the M groups of connecting pins 16 is connected to a pair of Y capacitors 220 on the driving board 2, the remaining Y capacitors 220 can also be connected to the corresponding connecting pins 16. In this way, the assembly efficiency of the motor controller 100 is improved and the connection errors of the Y capacitors 220 are reduced.

[0123] Furthermore, each group of connecting pins 16 may include four, specifically, including a first capacitor connecting pin 161, a second capacitor connecting pin 162 and two third connecting pins 163. The connecting pins 16 may include multiple groups, and the Y capacitor 220 may include N pairs. For example, the connecting pins 16 may be four groups, the Y capacitor 220 may be two pairs, the connecting pins 16 may be nine groups, the Y capacitor 220 may be three pairs, etc. In addition, the N pairs of Y capacitors 220 are arranged at equal intervals, so that the distance between the Y capacitor 220 and the positive and negative poles of the bus capacitor 1 is consistent, the filtering effect is consistent, and a better filtering effect can be achieved.

[0124] It can be understood that the Y capacitor 220 on the driving board 2 is arranged in the receiving groove 191 of the bus capacitor 1 to achieve positioning installation, thereby achieving the positioning installation of the driving board 2 and the bus capacitor 1, as well as assembly efficiency. In addition, a printed circuit may be provided on the driving board 2. After the driving board 2 is connected to the bus capacitor 1, the first Y capacitor pin 221 and the second Y capacitor pin 222 of each pair of Y capacitors 220 are respectively connected to the first capacitor connection pin 161 and the second capacitor connection pin 162. In this way, it is only necessary to correspond the Y capacitor 220 and the receiving groove 191 to realize the connection of the Y capacitor 220 to the positive and negative poles of the bus capacitor 1, and then to the positive and negative poles of the bus, and can play a filtering role. Therefore, any Y capacitor 220 can be matched with any receiving groove 191, which can avoid pin welding errors caused by installation errors and play a role in error prevention.

[0125] like Figure 6 and Fig.10 As shown, in some specific embodiments, in the radial direction of the bus capacitor 1, the connecting column 7 is arranged in the middle of the bus capacitor 1, the connecting column 7 is fixed to the side of the driving board 2 facing away from the bus capacitor 1, and the connecting column 7 is arranged between the driving board 2 and the control board 8. After the driving board 2 is welded to the bus capacitor 1, the connecting column 7 is located in the middle of the bus capacitor 1, which can better support the control board 8 and improve the stability and reliability of the support.

[0126] like Fig.10As shown, in some embodiments, the distance between the connecting column 7 and the center of the driving plate 2 is a first distance L1, and the distance between the connecting column 7 and the edge of the driving plate 2 is a second distance L2. The first distance L1 is greater than the second distance L2, that is, the connecting column 7 is closer to the edge of the driving plate 2.

[0127] like Fig.10 As shown, in some embodiments, the ratio of the first distance L1 to the second distance L2 ranges from 1.5 to 2.5. Optionally, the ratio of the first distance L1 to the second distance L2 may be 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.47, 2.5, etc. Of course, the ratio of the first distance L1 to the second distance L2 may also be other values ​​between 1.5 and 2.5, which are not listed here one by one.

[0128] like Fig. 9 As shown, in some embodiments, the motor controller 100 also includes an isolation plate 5, which is formed as an insulating member. The isolation plate 5 is located between the drive board 2 and the control board 8. It can not only play a safety role of isolating the control board 8 from the drive board 2, but also play an insulating role between the electrical components of the control board 8 and the electrical components of the drive board 2 to reduce interference.

[0129] like Fig. 9 As shown, in some embodiments, the isolation plate 5 and the control plate 8 are fixedly connected as an integral whole, the drive plate 2 is fixed on the isolation plate 5, the isolation plate 5 and the control plate 8 are connected to the drive plate 2 as a whole, and the drive plate 2 and the control plate 8 are electrically connected through a DC busbar injection molded part 9, thereby making the structure more compact.

[0130] like Figure 8 As shown, in some specific examples, when assembling the motor controller 100, the drive board 2 is first welded to a circle of connecting pins 16 on the periphery of the bus capacitor 1, and then the bus capacitor 1 is installed on the three-phase connection component 3, and the bus capacitor 1, the drive board 2 and the three-phase connection component 3 are fixed together with screws.

[0131] like Figure 10-13 As shown, the motor assembly 1000 according to the embodiment of the present invention includes a motor 200 and a motor controller 100 according to the embodiment of the present invention, and the motor 200 is electrically connected to the motor controller 100 .

[0132] By way of example, the motor controller 100 includes a shell, which is constructed as a cylindrical shell with one end open. A three-phase connection component 3 is provided at the boundary between the motor controller 100 and the motor 1000. The bus capacitor 1 is a ring structure, that is, the bus capacitor 1 has a center hole 11. The bus capacitor 1 also includes a single-phase connection terminal 14 and a first mounting portion 12 located in the center hole 1. The three-phase connection component 3 can be installed at the center hole 11 of the bus capacitor 1, and the single-phase connector 33 of the three-phase connection component 3 is connected to the single-phase terminal 140 of the bus capacitor 1.

[0133] According to the motor assembly 1000 of the embodiment of the utility model, by using the above-mentioned motor controller 100, by setting the first mounting portion 12 at the center hole 11, a mounting point is added on the inner side of the bus capacitor 1, and there is no need to add through holes and studs inside the bus capacitor 1, which can reduce the occupation of the internal space of the bus capacitor 1, and a capacitor core 18 with a larger volume and higher specifications can be arranged in the same space, thereby improving the utilization rate of the space; in addition, there is no need to add through holes inside the bus capacitor 1, which reduces the difficulty of shell manufacturing and processing, simplifies the structure of the bus capacitor 1, saves costs, and improves the yield rate and product quality; the first mounting portion 12 of the bus capacitor 1 is fixedly connected to the three-phase connection component 3, and the bus capacitor 1 is fixed to the shell of the motor controller 100 using the three-phase connection component 3, without adding new structural parts, which can reduce costs.

[0134] like Fig.10 and Fig.12 As shown, in some embodiments, the motor assembly 1000 includes a housing 300 and a partition 400 disposed in the housing 300, the partition 400 divides the housing 300 into a motor chamber 301 and an electric control chamber 302, the motor controller 100 is disposed in the electric control chamber 302, and the control board 8 and the drive board 2 are stacked along the axial direction of the motor 200. Among them, a part of the housing 300 is the housing of the motor 200 and the other part is the housing of the motor controller 100. By setting the housing 300, the motor controller 100 and the motor 200 can be protected. In addition, the partition 400 is provided to separate the motor 200 from the motor controller 100, so as to prevent the magnetic field, high temperature or vibration generated during the high-speed operation of the motor from affecting the operation of the motor controller 100, so as to reduce the mutual influence between the motor controller 100 and the motor 200 and improve the working stability of the motor assembly.

[0135] In some embodiments, the capacitor housing 17 can be glued to the partition, which is low-cost and has a reliable connection.

[0136] like Fig.14As shown, the vehicle 10000 according to the embodiment of the utility model includes the motor assembly 1000 according to the embodiment of the utility model. By setting the first mounting portion 12 at the center hole 11, a mounting point is added on the inner side of the bus capacitor 1, and there is no need to add through holes and studs inside the bus capacitor 1, which can reduce the occupation of the internal space of the bus capacitor 1, and a capacitor core 18 with a larger volume and higher specifications can be arranged in the same space, thereby improving the utilization rate of the space; in addition, there is no need to add through holes inside the bus capacitor 1, which reduces the difficulty of shell manufacturing and processing, simplifies the structure of the bus capacitor 1, saves costs, and improves the yield rate and product quality; the first mounting portion 12 of the bus capacitor 1 is fixedly connected to the three-phase connection component 3, and the bus capacitor 1 is fixed to the shell of the motor controller 100 using the three-phase connection component 3, without adding new structural parts, which can reduce costs.

[0137] Other configurations and operations of the vehicle 10000 according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail herein. In the description of the utility model, "first feature" and "second feature" may include one or more of the features. Among them, the up-down direction, left-right direction and front-back direction are based on the up-down direction, left-right direction and front-back direction shown in the figure.

[0138] In the description of the present utility model, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature "above", "above" and "above" a second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0139] 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.

[0140] 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 (100), characterized in that: include: A busbar capacitor (1), wherein the busbar capacitor (1) is provided with a center hole (11), and the busbar capacitor (1) is provided with a first mounting portion (12) located in the center hole (11); A three-phase connection component (3), the three-phase connection component (3) is suitable for being installed on the housing of a motor controller (100), the three-phase connection component (3) is suitable for connecting the winding of a motor (200), and the three-phase connection component (3) is provided with a second mounting portion (31), and the second mounting portion (31) and the first mounting portion (12) are fixedly connected.

2. The motor controller according to claim 1, characterized in that: It also includes a first fixed connection member, which passes through the first mounting portion (12) and is fixed to the second mounting portion (31).

3. The motor controller (100) according to claim 1, characterized in that: The three-phase connection assembly (3) is provided with a plurality of second mounting parts (31), the first mounting parts (12) are multiple, and the multiple first mounting parts (12) and the multiple second mounting parts (31) are arranged in a one-to-one correspondence.

4. The motor controller (100) according to claim 3, characterized in that: There are three second mounting portions (31) arranged at equal intervals along the circumferential direction.

5. The motor controller (100) according to claim 1, characterized in that: The busbar capacitor (1) comprises a capacitor housing (17) and a capacitor core (18), wherein the capacitor housing (17) has an annular accommodating cavity (171), and the capacitor core (18) is arranged in the accommodating cavity (171); the capacitor housing (17) comprises an annular outer wall (172) and an annular inner wall (173), wherein the annular inner wall (173) is located on the inner side of the annular outer wall (172) and the annular inner wall (173) defines the center hole (11), and the first mounting portion (12) is fixed to the annular inner wall (173).

6. The motor controller (100) according to claim 5, characterized in that: The three-phase connection assembly (3) comprises three single-phase connection members (33) and a base (32), the three single-phase connection members (33) are all fixed on the base (32), the second mounting portion (31) is fixed to the base (32), one end of the three single-phase connection members (33) is used to connect the winding of the motor (200), and the other end is used to connect the AC end of the power module of the motor controller (100).

7. The motor controller (100) according to claim 6, characterized in that: The capacitor housing (17) and the base (32) are both made of insulating materials.

8. The motor controller (100) according to claim 5, characterized in that: The motor controller (100) further comprises a driving board (2); the busbar capacitor (1) further comprises a first capacitor connection row (131) and a second capacitor connection row (132) fixed in the capacitor housing (17); one end of the first capacitor connection row (131) is provided with a first capacitor connection terminal (1311) and the other end is provided with a plurality of first capacitor connection pins (161); one end of the second capacitor connection row (132) is provided with a second capacitor connection terminal (1321) and the other end is provided with a plurality of second capacitor connection pins (162); the first capacitor connection row (131) and the second capacitor connection row (132) are respectively connected to two axial ends of the capacitor core (18); A plurality of the first capacitor connecting pins (161) and a plurality of the second capacitor connecting pins (162) are inserted into the driving board (2) and then welded to the driving board (2).

9. The motor controller (100) according to claim 8, characterized in that: The capacitor core (18), the first capacitor connection row (131) and the second capacitor connection row (132) are respectively encapsulated in the capacitor housing (17).

10. The motor controller according to claim 8, characterized in that: A potting layer (19) is formed on one side of the bus capacitor (1) close to the driving board (2), a receiving groove (191) is provided on the potting layer (19), and an electronic component (22) at least partially disposed in the receiving groove (191) is provided on the driving board (2).

11. The motor controller (100) according to claim 10, characterized in that: The electronic component (22) is at least one pair of Y capacitors (220), and each pair of the Y capacitors (220) shares a common grounding terminal (23).

12. The motor controller (100) according to claim 11, characterized in that: The motor controller (100) further comprises a control board (8), wherein the control board (8) is provided with a first ground terminal (81), and the common ground terminal (23) is electrically connected to the first ground terminal (81).

13. The motor controller (100) according to claim 12, characterized in that: It also includes a conductive connecting column (7), which is arranged between the driving board (2) and the control board (8), and the connecting column (7) is electrically connected to the common grounding terminal (23) and the first grounding terminal (81) respectively.

14. The motor controller (100) according to claim 13, characterized in that: The connecting column (7) and the Y capacitor (220) are located on both sides of the driving board (2).

15. The motor controller (100) according to claim 13, characterized in that: The first grounding terminal (81) is formed as a metal hole, and the motor controller (100) further comprises a third fixed connecting member, which is passed through the driving plate (2) and the connecting column (7) and cooperates with the metal hole.

16. The motor controller (100) according to claim 13, characterized in that: The busbar capacitor (1) comprises a plurality of groups of connecting pins (16), each group of the connecting pins (16) comprises the first capacitor connecting pin (161), the second capacitor connecting pin (162) and the third connecting pin (163), the third connecting pin (163) being connected to the single-line AC conductive bar (14), and the third connecting pin (163) being connected to the AC end of the power tube via a printed circuit on the driving board (2); The connecting pins (16) include M groups, the Y capacitors (220) include N pairs, the N pairs of Y capacitors (220) are arranged at equal intervals, the number of the accommodating slots (191) is N, the N accommodating slots (191) are arranged at equal intervals, and M / N=A, where A is an integer.

17. The motor controller (100) according to claim 16, characterized in that: In the radial direction of the busbar capacitor (1), the connecting column (7) is arranged in the middle of the busbar capacitor (1).

18. The motor controller (100) according to claim 13, characterized in that: The distance between the connecting column (7) and the center of the driving plate (2) is a first distance (L1), the distance between the connecting column (7) and the edge of the driving plate (2) is a second distance (L2), and the first distance (L1) is greater than the second distance (L2).

19. The motor controller (100) according to claim 18, characterized in that: The ratio of the first distance (L1) to the second distance (L2) ranges from 1.5 to 2.

5.

20. The motor controller (100) according to claim 12, characterized in that: It also includes an isolation plate (5), which is formed as an insulating member and is located between the drive plate (2) and the control plate (8).

21. The motor controller (100) according to claim 20, characterized in that: The isolation plate (5) and the control plate (8) are fixedly connected to form an integral whole, and the isolation plate (5) and the control plate (8) are connected to the drive plate (2) as a whole.

22. A motor assembly (1000), characterized in that: include: Motor (200); A motor controller (100), wherein the motor controller (100) is a motor controller (100) according to any one of claims 1 to 21, and the motor controller (100) is electrically connected to the motor (200).

23. The motor assembly (1000) according to claim 22, characterized in that It also includes a housing (300), a partition (400) is provided in the housing (300), a portion of the housing (300) and the partition (400) define a housing of the motor (200), a portion of the housing (300) and the partition (400) define a housing of the motor controller (100), and the three-phase connection component (3) is mounted on the partition (400).

24. The motor assembly (1000) according to claim 23, characterized in that The capacitor housing (17) is glued to the partition (400).

25. A vehicle (10000), characterized in that: Comprising a motor assembly (1000) according to any one of claims 19-24.

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