Motor controller module and motor controller

Abstract

The utility model discloses a motor controller module group, comprising a first module group comprising a filter module and a bus capacitor, the filter module is electrically connected with the bus capacitor; and the second module is connected with the first module, and the second module comprises a control board, an IGBT module and a driving board which are sequentially distributed from top to bottom and are electrically connected. According to the utility model, the bus capacitor and the filter module can be integrated, so that the motor controller module is compact in structure, small in size and low in cost. The utility model also provides a motor controller.

Description

Technical Field

[0001] The utility model relates to the field of motor controllers, in particular to a motor controller module and a motor controller. Background Art

[0002] With the rapid development of new energy vehicles, related technologies are becoming more mature, and the interior space of the car is compact. Miniaturization, lightweight and integration have become the mainstream direction of the development of new energy vehicles. The motor controller is the core component of the car. The traditional motor controller module has the disadvantages of large size and dispersed structure due to its separate filter module. Therefore, how to reduce the size of the motor controller module and make the motor controller module compact has become a major problem that needs to be solved urgently. Utility Model Content

[0003] The utility model aims to solve the problem of large size of motor controller in the prior art. The utility model provides a motor controller module and a motor controller, which can make the motor controller module compact, small and low in cost by integrating bus capacitor and filter module.

[0004] In order to solve the above technical problems, the embodiment of the utility model discloses a motor controller module, comprising:

[0005] A first module comprises a filter module and a bus capacitor, wherein the filter module is electrically connected to the bus capacitor;

[0006] The second module is connected to the first module, and the second module includes a control board, an IGBT module and a drive board which are sequentially distributed and electrically connected up and down.

[0007] The above technical solution is different from the prior art in which the filter module is independently arranged and increases the volume of the motor controller module. The present technical solution integrates the filter module and the bus capacitor into a first module, so that the motor controller module has a compact structure, a small volume and a low cost. In addition, the control board, the IGBT module and the driver board are integrated into a second module, and the motor controller module is composed of the first module and the second module, which can further reduce the volume of the motor controller module.

[0008] According to another specific embodiment of the present utility model, the first module includes a first shell, the first shell includes an inner cavity and a partition, the partition is located in the inner cavity, and the first shell divides the inner cavity into a first cavity and a second cavity through the partition; the filter module is located in the first cavity, the bus capacitor is located in the second cavity, the partition is provided with a first through hole portion and a second through hole portion, and the bus capacitor is electrically connected to the filter module via the first through hole portion and the second through hole portion.

[0009] According to another specific embodiment of the present utility model, the filter module includes a first positive copper bar and a first negative copper bar, the bus capacitor includes a second positive copper bar and a second negative copper bar, the second positive copper bar passes through the first through-hole portion and is connected to the first positive copper bar, and the second negative copper bar passes through the second through-hole portion and is connected to the first negative copper bar.

[0010] By adopting the above technical solution, the filter module is placed in the first cavity of the first housing, and the busbar capacitor is placed in the second cavity, so the busbar capacitor and the filter module can be integrated into the first module. The second positive copper bar of the busbar capacitor passes through the first through-hole portion to connect with the first positive copper bar of the filter module, and the second negative copper bar of the busbar capacitor passes through the second through-hole portion to connect with the first negative copper bar of the filter module, so the busbar capacitor and the filter module can be directly electrically connected internally, without the need to form an electrical connection through other circuits outside the first housing, thereby reducing costs.

[0011] According to another specific embodiment of the utility model, the first module includes a first adhesive and a first gel, the first cavity includes a first cavity wall, the filter module is spaced apart from the first cavity wall, there is a first gap between the filter module and the first cavity wall, the first adhesive is located between the filter module and the partition, and the first gel fills the first gap.

[0012] With the above technical solution, when the filter module is placed in the first cavity, the first adhesive is first placed at the bottom of the filter module so that the bottom of the filter module is initially fixed and positioned on the partition, and then the first gel is injected into the first gap. After the first gel is heated and cured, the cured first gel fills the first gap. Along the first direction and the second direction, one side of the first gel abuts against the first cavity wall, and the other side of the first gel abuts against the filter module, which plays a role in fixing and restricting the filter module. In the subsequent working process, the first gel can limit the filter module in all directions to ensure that the filter module will not move during the working process.

[0013] According to another specific embodiment of the utility model, the first module includes a second adhesive backing and a second gel, the second cavity includes a second cavity wall, the busbar capacitor is spaced apart from the second cavity wall, a second gap exists between the busbar capacitor and the second cavity wall, the second adhesive backing is located between the busbar capacitor and the partition, and the second gel fills the second gap.

[0014] With the above technical solution, when the busbar capacitor is placed in the second cavity, the second backing glue is first placed at the bottom of the busbar capacitor so that the bottom of the busbar capacitor is initially fixed and positioned on the partition, and the second gel is injected into the second gap. After the second gel is heated and cured, the cured second gel fills the second gap. Along the first direction and the second direction, one side of the second gel abuts against the second cavity wall, and the other side of the second gel abuts against the busbar capacitor, which plays a role in fixing and limiting the busbar capacitor. In the subsequent working process, the second gel can limit the busbar capacitor in all directions to ensure that the busbar capacitor does not move during the working process.

[0015] According to another specific embodiment of the utility model, the first shell includes a first support portion, the first support portion is located in the first cavity, and is arranged on the upper surface of the partition, the first support portion includes a first nut and a second nut, the first positive copper busbar is provided with a first bolt hole, the first nut and the first bolt hole correspond to form a first plug-in portion, and the first plug-in portion is used to connect with a high-voltage connector; the first negative copper busbar is provided with a second bolt hole, the second nut and the second bolt hole correspond to form a second plug-in portion, and the second plug-in portion is used to connect with a high-voltage connector.

[0016] According to another specific embodiment of the utility model, the first shell includes a second support portion, the second support portion is located in the first cavity, and is arranged on the upper surface of the partition. Along the first direction, the first support portion and the second support portion are spaced apart, and the second support portion is used to support and fix the first negative copper busbar.

[0017] According to another specific embodiment of the utility model, the first negative copper busbar is provided with a first positioning hole, and both ends of the second support portion are respectively provided with first positioning columns, and the first positioning holes are welded and connected to the first positioning columns in a one-to-one correspondence.

[0018] By adopting the above technical solution, the first positioning column and the first positioning hole correspond to each other one by one and are welded and connected, which can fix the first negative copper busbar and ensure that the first negative copper busbar will not move during subsequent work.

[0019] According to another specific embodiment of the present utility model, the first shell includes a third support portion and a fourth support portion, the third support portion and the fourth support portion are located in the first cavity, and are arranged on the upper surface of the partition, along the second direction, the first support portion, the third support portion and the fourth support portion are arranged in sequence at intervals, the third support portion and the fourth support portion are used to support and fix the first positive copper busbar, and the second direction is perpendicular to the first direction.

[0020] According to another specific embodiment of the utility model, the first positive copper busbar is provided with a second positioning hole and a third positioning hole, the third support portion includes a second positioning column, the second positioning hole and the second positioning column are correspondingly welded and connected, the fourth support portion includes a third positioning column, the third positioning hole and the third positioning column are correspondingly welded and connected.

[0021] By adopting the above technical solution, the second positioning hole and the second positioning column are correspondingly welded and connected, which can fix the middle end of the first positive copper busbar, and the third positioning hole and the third positioning column are correspondingly welded and connected, which can fix the other end of the first positive copper busbar. The two fixing points combined can fix the first positive copper busbar, ensuring that the first positive copper busbar will not move during subsequent work.

[0022] According to another specific embodiment of the utility model, the filter module includes a first capacitor part, a magnetic ring and a second capacitor part, the first capacitor part, the magnetic ring and the second capacitor part are located in the first cavity, the first positive copper bar and the first negative copper bar pass through the magnetic ring, and the first positive copper bar and the first negative copper bar are electrically connected to the first capacitor part and the second capacitor part respectively.

[0023] By adopting the above technical solution, since the middle part of the magnetic ring is hollowed out, the first positive copper bar and the first negative copper bar can pass through the hollow part and be connected to the second positive copper bar and the second negative copper bar of the bus capacitor respectively. Therefore, the bus capacitor and the filter module can be directly electrically connected inside, without the need to form an electrical connection through other circuits outside the first shell, thereby reducing costs.

[0024] According to another specific embodiment of the utility model, the first shell includes a fifth support portion, the fifth support portion is located in the first cavity, and is provided on the upper surface of the partition. Along the second direction, the third support portion, the fifth support portion and the fourth support portion are arranged in sequence at intervals, and the fifth support portion is used to support and fix the magnetic ring.

[0025] According to another specific embodiment of the utility model, the second module includes a second shell, the second shell is injection-moldedly connected to the first shell, the second shell includes a third cavity, the IGBT module is located in the third cavity, the bus capacitor is provided with a third positive copper bar and a third negative copper bar, the IGBT module is provided with a fourth positive copper bar and a fourth negative copper bar, the fourth positive copper bar passes through the cavity wall of the third cavity and is connected to the third positive copper bar, and the fourth negative copper bar passes through the cavity wall of the third cavity and is connected to the third negative copper bar.

[0026] By adopting the above technical solution, the third positive copper bar of the bus capacitor is connected to the fourth positive copper bar of the IGBT module, and the third negative copper bar of the bus capacitor is connected to the fourth negative copper bar of the IGBT module, so that the direct current of the bus capacitor can be converted into three-phase alternating current through the IGBT module; through the connection between the bus capacitor and the IGBT module, the first module and the second module are connected.

[0027] According to another specific embodiment of the utility model, the IGBT module includes a pin needle, a base plate and a cooling pin column group, the pin needle is arranged on the upper surface of the base plate, the pin needle is connected to the driving board, the cooling pin column group is arranged on the lower surface of the base plate, and the cooling pin column group is used to cool and dissipate heat for the IGBT module.

[0028] According to another specific embodiment of the utility model, the IGBT module includes a magnetic collecting ring, the driving board includes a Hall sensor, and along the first direction, the magnetic collecting ring is arranged at one end of the IGBT module, one end of the Hall sensor is connected to the driving board, and the other end of the Hall sensor is spaced apart from the magnetic collecting ring.

[0029] According to another specific embodiment of the present invention, the magnetic collecting ring is made of silicon steel sheet.

[0030] Using the above technical solution, the IGBT module is used to convert direct current into three-phase alternating current and output it to the motor end. The alternating current generates a changing magnetic field during the change process. Since the magnetic field is very weak in the air, the magnetic field in the air is concentrated through silicon steel sheets. The Hall sensor senses the changing magnetic field and generates a changing current that is transmitted to the drive board. Therefore, the drive board can sense the current size of the output alternating current.

[0031] According to another specific implementation of the present utility model, the IGBT module includes a first three-phase busbar interface, and the first three-phase busbar interface is used to connect with the stator winding to form current transmission.

[0032] According to another specific embodiment of the present invention, along the first direction, the first module and the second module are arranged side by side.

[0033] The embodiment of the utility model further discloses a motor controller, comprising:

[0034] Second three-phase busbar interface;

[0035] A stator winding, the stator winding being connected to one end of the second three-phase busbar interface;

[0036] In the motor controller module described in any of the above items, the first three-phase busbar interface is connected to the other end of the second three-phase busbar interface for current transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The three-dimensional view of the motor controller module of the utility model embodiment is shown Figure 1 .

[0038] Figure 2 An exploded view of a motor controller module according to an embodiment of the present utility model is shown.

[0039] Figure 3 The three-dimensional view of the motor controller module of the utility model embodiment is shown Figure 2 .

[0040] Figure 4a A cross-sectional view of a motor controller module according to an embodiment of the present utility model is shown.

[0041] Figure 4b Show the utility model embodiment Figure 4a A partial enlarged view of area A.

[0042] Figure 5 A schematic diagram showing the connection between the first shell and the second shell of an embodiment of the utility model is shown.

[0043] Figure 6 The three-dimensional view of the motor controller module of the utility model embodiment is shown Figure 3 .

[0044] Description of Reference Numerals

[0045] Motor controller module 1;

[0046] First module 2;

[0047] Filter module 21;

[0048] First positive copper busbar 211; first bolt hole 2111;

[0049] First negative electrode copper bar 212; second bolt hole 2121; first positioning hole 2122;

[0050] A first capacitor 213; a magnetic ring 214; a second capacitor 215;

[0051] Busbar capacitor 22; second positive copper bar 221; second negative copper bar 222; third positive copper bar 223; third negative copper bar 224; capacitor core 225;

[0052] A first housing 23;

[0053] First support portion 231; first nut 2311; second nut 2312;

[0054] The second supporting portion 232; the first positioning column 2321;

[0055] The third supporting portion 233; the second positioning column 2331;

[0056] Fourth supporting portion 234; third positioning column 2341;

[0057] A fifth supporting portion 235;

[0058] Lumen 236;

[0059] First cavity 2361; first cavity wall 23611; first gap 23612;

[0060] Second cavity 2362; second cavity wall 23621; second gap 23622;

[0061] Partition plate 237; first through hole portion 2371; second through hole portion 2372;

[0062] Second module 3;

[0063] Control panel 31;

[0064] IGBT module 32; fourth positive copper bar 321; fourth negative copper bar 322; pin needle 323; bottom plate 324; cooling pin column group 325; sealing ring 326; magnetic collecting ring 327; first three-phase busbar interface 328;

[0065] Driving board 33; Hall sensor 331;

[0066] The second housing 34; the third cavity 341; the third through hole portion 342; the fourth through hole portion 343; the mounting portion 344;

[0067] Stud bolt 35;

[0068] FPC soft row 36. DETAILED DESCRIPTION

[0069] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0070] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0071] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply 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 utility model.

[0072] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0073] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" 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 this embodiment can be understood according to specific circumstances.

[0074] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0075] refer to Figure 1 and Figure 2 The present application provides a motor controller module 1, comprising a first module 2 and a second module 3. The first module 2 comprises a filter module 21 and a bus capacitor 22, and the filter module 21 and the bus capacitor 22 are electrically connected, that is, the first module 2 integrates the filter module 21 and the bus capacitor 22. The second module 3 is connected to the first module 2 along a first direction ( Figure 1 The second module 3 includes a control board 31, an IGBT module 32 and a drive board 33 which are sequentially distributed and electrically connected in the upper and lower directions. That is, the second module 3 integrates the control board 31, the IGBT module 32 and the drive board 33. Among them, the filter module 21 includes a first capacitor part 213, a magnetic ring 214 and a second capacitor part 215. The busbar capacitor 22 is composed of four capacitor cores 225.

[0076] By adopting the above technical solution, unlike the prior art in which the filter module is independently arranged and increases the volume of the motor controller module, the present technical solution integrates the bus capacitor 22 and the filter module 21 into the first module 2, so that the motor controller module 1 can be compact in structure, small in volume and low in cost. In addition, the control board 31, the IGBT module 32 and the drive board 33 are integrated into the second module 3, and the motor controller module 1 is composed of the first module 2 and the second module 3, which can further reduce the volume of the motor controller module 1.

[0077] It should be noted that the embodiment of the present application does not impose any specific limitation on the number of capacitor cores 225 that make up the bus capacitor 22. For example, in other possible implementations, the number of capacitor cores 225 may be five, six, etc.

[0078] In some possible implementations, such as Figure 1 , Figure 3 and Figure 4a As shown, the first module 2 includes a first housing 23, the first housing 23 is in a rectangular shape, the first housing 23 includes an inner cavity 236 and a partition 237, the partition 237 is in a rectangular shape, the partition 237 is located in the inner cavity 236, and the first housing 23 divides the inner cavity 236 into a first cavity 2361 and a second cavity 2362 through the partition 237. The filter module 21 is located in the first cavity 2361, and the busbar capacitor 22 is located in the second cavity 2362.

[0079] refer to Figure 4a and Figure 5 The partition 237 is provided with a first through hole portion 2371 and a second through hole portion 2372 , and the first through hole portion 2371 and the second through hole portion 2372 are arranged at intervals, and the bus capacitor 22 and the filter module 21 are electrically connected through the first through hole portion 2371 and the second through hole portion 2372 .

[0080] refer to Figure 1 , Figure 2 and Figure 5 The filter module 21 includes a first positive copper bar 211 and a first negative copper bar 212, and the bus capacitor 22 includes a second positive copper bar 221 and a second negative copper bar 222. The second positive copper bar 221 passes through the first through hole portion 2371 to connect with the first positive copper bar 211, and the second negative copper bar 222 passes through the second through hole portion 2372 to connect with the first negative copper bar 212.

[0081] By adopting the above technical solution, the first cavity 2361 of the first housing 23 is used to place the filter module 21, and the second cavity 2362 is used to place the bus capacitor 22, so the bus capacitor 22 and the filter module 21 can be integrated into the first module 2. The second positive copper bar 221 of the bus capacitor 22 is connected to the first positive copper bar 211 of the filter module 21 through the first through-hole portion 2371, and the second negative copper bar 222 of the bus capacitor 22 is connected to the first negative copper bar 212 of the filter module 21 through the second through-hole portion 2372, so the bus capacitor 22 and the filter module 21 can be directly electrically connected internally, without the need to form an electrical connection through other circuits outside the first housing 23, thereby reducing costs.

[0082] It should be noted that the embodiment of the present application does not specifically limit the shape of the first shell 23. For example, in other possible embodiments, the shape of the first shell 23 may be a cube, a cylinder, etc. The embodiment of the present application does not specifically limit the shape of the partition 237. For example, in other possible embodiments, the shape of the partition 237 may be a square, a circle, etc. The shape of the partition 237 is determined by the shape of the first shell 23.

[0083] In some possible implementations, reference Figures 1 to 3 The first module 2 includes a first adhesive backing (not shown in the figure) and a first gel (not shown in the figure), the first cavity 2361 includes a first cavity wall 23611, the filter module 21 is spaced apart from the first cavity wall 23611, there is a first gap 23612 between the filter module 21 and the first cavity wall 23611, the first adhesive backing is located between the filter module 21 and the partition 237, and the first gel fills the first gap 23612.

[0084] With the above technical solution, when the filter module 21 is placed in the first cavity 2361, the first adhesive is placed on the bottom of the filter module 21 to initially fix the bottom of the filter module 21 on the partition 237, and then the first gel is injected into the first gap 23612. After the first gel is heated and cured, the cured first gel fills the first gap 23612. Figure 3 X direction) and the second direction ( Figure 3 In the Y direction), one side of the first gel abuts against the first cavity wall 23611, and the other side of the first gel abuts against the filter module 21, thereby fixing and limiting the filter module 21. In the subsequent working process, the first gel can limit the filter module 21 in all directions, thereby ensuring that the filter module 21 does not move during the working process.

[0085] In some possible implementations, reference Figure 4a and Figure 5The first module 2 includes a second adhesive backing (not shown in the figure) and a second gel (not shown in the figure), the second cavity 2362 includes a second cavity wall 23621, the bus capacitor 22 is spaced apart from the second cavity wall 23621, a second gap 23622 exists between the bus capacitor 22 and the second cavity wall 23621, the second adhesive backing is located between the bus capacitor 22 and the partition 237, and the second gel fills the second gap 23622.

[0086] With the above technical solution, when the bus capacitor 22 is placed in the second cavity 2362, the second adhesive is first placed on the bottom of the bus capacitor 22 to initially fix the bottom of the bus capacitor 22 on the partition 237, and the second gel is injected into the second gap 23622. After the second gel is heated and cured, the cured second gel fills the second gap 23622. Figure 5 X direction) and the second direction ( Figure 5 In the Y direction), one side of the second gel abuts against the second cavity wall 23621, and the other side of the second gel abuts against the bus capacitor 22, thereby fixing and limiting the bus capacitor 22. In the subsequent working process, the second gel can limit the bus capacitor 22 in all directions, thereby ensuring that the bus capacitor 22 does not move during the working process.

[0087] In some possible implementations, reference Figure 1 and Figure 3 The first shell 23 includes a first support portion 231, which is a rectangular body. The first support portion 231 is located in the first cavity 2361 and is arranged on the upper surface of the partition 237. The first support portion 231 includes a first nut 2311 and a second nut 2312. The first positive copper busbar 211 is provided with a first bolt hole 2111. The first nut 2311 and the first bolt hole 2111 correspond to form a first plug-in portion, and the first plug-in portion is used to connect with a high-voltage connector (not shown in the figure); the first negative copper busbar 212 is provided with a second bolt hole 2121. The second nut 2312 and the second bolt hole 2121 correspond to form a second plug-in portion, and the second plug-in portion is used to connect with a high-voltage connector.

[0088] It should be noted that the embodiment of the present application does not impose any specific limitation on the shape of the first support portion 231 . For example, in other possible implementations, the shape of the first support portion 231 may be a cube, a cylinder, etc.

[0089] In some possible implementations, reference Figure 1 and Figure 3 The first shell 23 includes a second support portion 232, which is composed of three "cross" shapes. The second support portion 232 is located in the first cavity 2361 and is disposed on the upper surface of the partition 237. Figure 3In the X direction, the first support portion 231 and the second support portion 232 are arranged at intervals, and the second support portion 232 is used to fix the first negative electrode copper bus 212.

[0090] It should be noted that the embodiment of the present application does not impose any specific limitation on the shape of the second support portion 232 . For example, in other possible implementations, the shape of the second support portion 232 may be a cube, a cuboid, etc.

[0091] refer to Figure 1 and Figure 3 The first negative copper busbar 212 is provided with two first positioning holes 2122 , and both ends of the second support portion 232 are respectively provided with first positioning columns 2321 , and the first positioning holes 2122 are welded and connected with the first positioning columns 2321 in a one-to-one correspondence.

[0092] It should be noted that the embodiment of the present application does not specifically limit the number of the first positioning holes 2122. For example, in other possible implementations, the number of the first positioning holes 2122 may be three, four, etc. The embodiment of the present application does not specifically limit the number of the first positioning posts 2321. For example, in other possible implementations, the number of the first positioning posts 2321 may be three, four, etc. The number of the first positioning posts 2321 is determined by the number of the first positioning holes 2122.

[0093] By adopting the above technical solution, the first positioning holes 2122 and the first positioning columns 2321 are welded and connected in a one-to-one correspondence, which can fix the first negative copper bar 212 and ensure that the first negative copper bar 212 will not move during subsequent work.

[0094] In some possible implementations, reference Figure 1 and Figure 3 The first shell 23 includes a third support portion 233 and a fourth support portion 234, and the third support portion 233 and the fourth support portion 234 are in a "cross" shape. The third support portion 233 and the fourth support portion 234 are located in the first cavity 2361 and are disposed on the upper surface of the partition 237. Along the second direction ( Figure 3 In the middle Y direction), the first support part 231, the third support part 233 and the fourth support part 234 are arranged in sequence, and the first support part 231, the third support part 233 and the fourth support part 234 are used to fix the first positive copper bus 211, and the second direction is perpendicular to the first direction.

[0095] It should be noted that the embodiment of the present application does not impose any specific restrictions on the shapes of the third support portion 233 and the fourth support portion 234. For example, in other possible implementations, the shapes of the third support portion 233 and the fourth support portion 234 can be a cube, a cuboid, etc.

[0096] In some possible implementations, reference Figures 1 to 3 The first positive copper busbar 211 is provided with a second positioning hole (not shown in the figure) and a third positioning hole (not shown in the figure), the third support portion 233 includes a second positioning column 2331, the second positioning hole and the second positioning column 2331 are correspondingly welded and connected, the fourth support portion 234 includes a third positioning column 2341, the third positioning hole and the third positioning column 2341 are correspondingly welded and connected.

[0097] By adopting the above technical solution, the second positioning hole and the second positioning column 2331 are correspondingly welded and connected, which can fix the middle end of the first positive copper busbar 211, and the third positioning hole and the third positioning column 2341 are correspondingly welded and connected, which can fix the other end of the first positive copper busbar 211. The combination of the fixed points can fix the first positive copper busbar 211, ensuring that the first positive copper busbar 211 will not move during subsequent work.

[0098] In some possible implementations, reference Figure 1 The first capacitor part 213, the magnetic ring 214 and the second capacitor part 215 are located in the first cavity 2361, the first positive copper bar 211 and the first negative copper bar 212 pass through the magnetic ring 214, and the first positive copper bar 211 and the first negative copper bar 212 are electrically connected to the first capacitor part 213 and the second capacitor part 215 respectively.

[0099] By adopting the above technical solution, since the middle part of the magnetic ring 214 is hollowed out, the first positive copper bar 211 and the first negative copper bar 212 can pass through the hollow part and be connected to the second positive copper bar 221 and the second negative copper bar 222 of the bus capacitor 22 respectively. Therefore, the bus capacitor 22 and the filter module 21 can be directly electrically connected internally, without the need to form an electrical connection through other circuits outside the first shell 23, thereby reducing costs.

[0100] In some possible implementations, reference Figure 1 and Figure 3 The first shell 23 includes a fifth support portion 235, which is arc-shaped. The fifth support portion 235 is located in the first cavity 2361 and is disposed on the upper surface of the partition 237 along the second direction ( Figure 3 In the Y direction, the third support portion 233, the fifth support portion 235 and the fourth support portion 234 are sequentially arranged at intervals, and the fifth support portion 235 is used to fix the magnetic ring 214.

[0101] It should be noted that the embodiment of the present application does not impose any specific limitation on the shape of the fifth support portion 235 . For example, in other possible implementations, the shape of the fifth support portion 235 is determined by the shape of the magnetic ring 214 , as long as the magnetic ring 214 can be fixed.

[0102] In some possible implementations, reference Figures 4a to 5 The second module 3 includes a second housing 34, which is a rectangular parallelepiped. The second housing 34 is injection-molded and connected to the first housing 23, and the second housing 34 includes a third cavity 341, in which the IGBT module 32 is located. The busbar capacitor 22 is provided with a third positive copper bar 223 and a third negative copper bar 224, and the IGBT module 32 is provided with a fourth positive copper bar 321 and a fourth negative copper bar 322, the fourth positive copper bar 321 passes through the cavity wall of the third cavity 341 and is connected to the third positive copper bar 223, and the fourth negative copper bar 322 passes through the cavity wall of the third cavity 341 and is connected to the third negative copper bar 224.

[0103] It should be noted that the embodiment of the present application does not impose any specific limitation on the shape of the second shell 34 . For example, in other possible implementations, the shape of the second shell 34 may be a cube, a cylinder, etc.

[0104] By adopting the above technical solution, the third positive copper busbar 223 of the bus capacitor 22 is connected to the fourth positive copper busbar 321 of the IGBT module 32, and the third negative copper busbar 224 of the bus capacitor 22 is connected to the fourth negative copper busbar 322 of the IGBT module 32, so that the direct current of the bus capacitor 22 is converted into three-phase alternating current through the IGBT module 32; through the connection between the bus capacitor 22 and the IGBT module 32, the first module 2 and the second module 3 are connected.

[0105] In some possible implementations, reference Figure 1 , Figure 4a and Figure 6 The IGBT module 32 includes a plurality of pins 323, and a plurality of small holes (not shown in the figure) are provided on the surface of the driving board 33. The plurality of small holes are connected to the plurality of pins 323 in a one-to-one correspondence, so as to ensure that the IGBT module 32 is electrically connected to the driving board 33. The second module 3 includes an FPC flexible row 36, one end of which is connected to the control board 31, and the other end of which is connected to the driving board 33, so as to ensure that the control board 31 is electrically connected to the driving board 33.

[0106] In some possible implementations, reference Figure 1 , Figure 4a and Figure 5 The IGBT module 32 includes a base plate 324, a cooling pin column group 325 and a sealing ring 326. The pin pins 323 are arranged on the upper surface of the base plate 324, and the cooling pin column group 325 is arranged on the lower surface of the base plate 324. The cooling pin column group 325 is used to cool and dissipate heat for the IGBT module 32. Along the second direction ( Figure 5 A third through hole portion 342 and a fourth through hole portion 343 are respectively provided at two ends of the second shell 34 , and a sealing ring 326 is provided between the IGBT module 32 and the second shell 34 .

[0107] By adopting the above technical solution, the third through hole portion 342 is the water inlet, and the fourth through hole portion 343 is the water outlet. The coolant flows from the third through hole portion 342 through the cooling pin column group 325 to dissipate heat for the IGBT module 32, and then flows out from the fourth through hole portion 343. At the same time, the sealing ring 326 ensures that the coolant does not penetrate into the IGBT module 32.

[0108] In some possible implementations, reference Figure 2 The IGBT module 32 includes three magnetic collecting rings 327, and the material of the magnetic collecting rings 327 is silicon steel sheet. The driving plate 33 includes three Hall sensors 331. Along the first direction, the three magnetic collecting rings 327 are respectively arranged at one end of the IGBT module 32, one end of the three Hall sensors 331 is respectively connected to the driving plate 33, and the other ends of the three Hall sensors 331 are respectively arranged at intervals with the three magnetic collecting rings 327 in a one-to-one correspondence.

[0109] By adopting the above technical solution, the IGBT module 32 is used to convert direct current into three-phase alternating current and output it to the motor end. The alternating current generates a changing magnetic field during the change process. Since the magnetic field is very weak in the air, the magnetic field in the air is concentrated through the silicon steel sheet. The Hall sensor 331 senses the changing magnetic field and generates a changing current which is transmitted to the drive board 33. Therefore, the drive board 33 can sense the current size of the output alternating current.

[0110] In some possible implementations, reference Figure 2 The IGBT module 32 includes three first three-phase busbar interfaces 328, and the three first three-phase busbar interfaces 328 are used to connect with the stator winding to form current transmission.

[0111] In some possible implementations, reference Figures 1 to 3 The second module 3 includes fourteen stud bolts 35, and the second housing includes fourteen mounting portions 344. The stud bolts 35 are connected to the mounting portions 344 in a one-to-one correspondence. Among them, eight stud bolts 35 are used to connect the second housing 34, the IGBT module 32 and the drive board 33, and the other six stud bolts 35 are used to connect the second housing 34 and the control board 31.

[0112] It should be noted that the embodiment of the present application does not specifically limit the number of stud bolts 35. For example, in other possible implementations, the number of stud bolts 35 may be sixteen, eighteen, etc. The embodiment of the present application does not specifically limit the number of mounting portions 344. For example, in other possible implementations, the number of mounting portions 344 may be sixteen, eighteen, etc. The number of mounting portions 344 is determined by the number of stud bolts 35.

[0113] The present application also provides a motor controller (not shown in the figure), referring to Figure 2 The motor controller includes a second three-phase busbar interface, a stator winding (not shown in the figure) and any of the above motor controller modules 1. The stator winding is connected to one end of the second three-phase busbar interface, and the first three-phase busbar interface 328 is connected to the other end of the second three-phase busbar interface for current transmission.

[0114] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A motor controller module, characterized in that: The motor controller module comprises: A first module comprises a filter module and a bus capacitor, wherein the filter module is electrically connected to the bus capacitor; The second module is connected to the first module, and the second module includes a control board, an IGBT module and a drive board which are sequentially distributed and electrically connected up and down.

2. The motor controller module according to claim 1, characterized in that: The first module includes a first shell, the first shell includes an inner cavity and a partition, the partition is located in the inner cavity, and the first shell divides the inner cavity into a first cavity and a second cavity through the partition; the filter module is located in the first cavity, the bus capacitor is located in the second cavity, the partition is provided with a first through hole portion and a second through hole portion, and the bus capacitor is electrically connected to the filter module via the first through hole portion and the second through hole portion.

3. The motor controller module according to claim 2, characterized in that: The filter module includes a first positive copper bar and a first negative copper bar, the bus capacitor includes a second positive copper bar and a second negative copper bar, the second positive copper bar passes through the first through hole portion and is connected to the first positive copper bar, and the second negative copper bar passes through the second through hole portion and is connected to the first negative copper bar.

4. The motor controller module according to claim 2, characterized in that: The first module includes a first adhesive and a first gel, the first cavity includes a first cavity wall, the filter module is spaced apart from the first cavity wall, a first gap exists between the filter module and the first cavity wall, the first adhesive is located between the filter module and the partition, and the first gel fills the first gap.

5. The motor controller module according to claim 2, characterized in that: The first module includes a second adhesive backing and a second gel, the second cavity includes a second cavity wall, the bus capacitor is spaced apart from the second cavity wall, a second gap exists between the bus capacitor and the second cavity wall, the second adhesive backing is located between the bus capacitor and the partition, and the second gel fills the second gap.

6. The motor controller module according to claim 2, characterized in that: The first shell includes a first support portion, which is located in the first cavity and is arranged on the upper surface of the partition. The first support portion includes a first nut and a second nut. The first positive copper busbar is provided with a first bolt hole, and the first nut and the first bolt hole correspond to form a first plug-in portion, and the first plug-in portion is used to connect with a high-voltage connector; the first negative copper busbar is provided with a second bolt hole, and the second nut and the second bolt hole correspond to form a second plug-in portion, and the second plug-in portion is used to connect with a high-voltage connector.

7. The motor controller module according to claim 2, characterized in that: The first shell includes a second support portion, the second support portion is located in the first cavity, and is provided on the upper surface of the partition. Along the first direction, the first support portion and the second support portion are spaced apart, and the second support portion is used to support and fix the first negative copper busbar.

8. The motor controller module according to claim 7, characterized in that: The first negative electrode copper busbar is provided with a first positioning hole, and both ends of the second support portion are respectively provided with first positioning columns, and the first positioning holes are welded and connected with the first positioning columns in a one-to-one correspondence.

9. The motor controller module according to claim 2, characterized in that: The first shell includes a third support portion and a fourth support portion, the third support portion and the fourth support portion are located in the first cavity, and are arranged on the upper surface of the partition. Along the second direction, the first support portion, the third support portion and the fourth support portion are arranged in sequence at intervals, and the third support portion and the fourth support portion are used to support and fix the first positive copper busbar, and the second direction is perpendicular to the first direction.

10. The motor controller module according to claim 9, characterized in that: The first positive copper busbar is provided with a second positioning hole and a third positioning hole, the third support portion includes a second positioning column, the second positioning hole and the second positioning column are correspondingly welded and connected, the fourth support portion includes a third positioning column, the third positioning hole and the third positioning column are correspondingly welded and connected.

11. The motor controller module according to claim 2, characterized in that: The filter module includes a first capacitor part, a magnetic ring and a second capacitor part, the first capacitor part, the magnetic ring and the second capacitor part are located in the first cavity, the first positive copper bar and the first negative copper bar pass through the magnetic ring, and the first positive copper bar and the first negative copper bar are electrically connected to the first capacitor part and the second capacitor part respectively.

12. The motor controller module according to claim 9, characterized in that: The first shell includes a fifth support portion, the fifth support portion is located in the first cavity, and is provided on the upper surface of the partition. Along the second direction, the third support portion, the fifth support portion and the fourth support portion are arranged in sequence at intervals, and the fifth support portion is used to support and fix the magnetic ring.

13. The motor controller module according to claim 1, characterized in that: The second module includes a second shell, which is injection-molded with the first shell, and the second shell includes a third cavity. The IGBT module is located in the third cavity, and the bus capacitor is provided with a third positive copper bar and a third negative copper bar. The IGBT module is provided with a fourth positive copper bar and a fourth negative copper bar. The fourth positive copper bar passes through the cavity wall of the third cavity and is connected to the third positive copper bar, and the fourth negative copper bar passes through the cavity wall of the third cavity and is connected to the third negative copper bar.

14. The motor controller module according to claim 1, characterized in that: The IGBT module includes pins, a base plate and a cooling pin column group. The pins are arranged on the upper surface of the base plate and connected to the driving board. The cooling pin column group is arranged on the lower surface of the base plate and is used to cool and dissipate heat for the IGBT module.

15. The motor controller module according to claim 1, characterized in that: The IGBT module includes a magnetic collecting ring, and the driving board includes a Hall sensor. Along a first direction, the magnetic collecting ring is arranged at one end of the IGBT module, one end of the Hall sensor is connected to the driving board, and the other end of the Hall sensor is spaced apart from the magnetic collecting ring.

16. The motor controller module according to claim 15, characterized in that: The material of the magnetic collecting ring is silicon steel sheet.

17. The motor controller module according to claim 1, characterized in that: The IGBT module comprises a first three-phase busbar interface, and the first three-phase busbar interface is used to connect with the stator winding to form current transmission.

18. The motor controller module according to any one of claims 1 to 17, characterized in that: Along the first direction, the first module and the second module are arranged side by side.

19. A motor controller, characterized in that: The motor controller comprises: Second three-phase busbar interface; A stator winding, the stator winding being connected to one end of the second three-phase busbar interface; In the motor controller module described in any one of claims 1 to 18, the first three-phase busbar interface is connected to the other end of the second three-phase busbar interface for current transmission.

Images