Integrated assembly, motor controller and power assembly
By designing integrated components, including brackets, filter modules and busbar capacitor modules, and by electrically connecting the capacitor core packages to act as X-capacitors for the filter module, the problem of high assembly complexity of existing motor controllers is solved, achieving more efficient assembly and smaller volumes.
Patent Information
- Application Number
- CN202421217484.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The existing motor controller has a large number of functional components and high assembly complexity, resulting in low assembly efficiency.
An integrated component is designed, including a bracket, a filter module and a bus capacitor module. The capacitor core package acts as the X capacitor of the filter module through electrical connection, so as to achieve a high degree of integration between the filter module and the bus capacitor module.
Improves the assembly efficiency of the motor controller, saves costs, reduces the overall volume of integrated components, and saves installation space.
Smart Images
Figure CN222582309U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor controllers, in particular to an integrated component, a motor controller and a power assembly. Background Art
[0002] In the powertrain system, the motor controller, as a core component, contains DC input copper bus, filter components, bus capacitors, power modules, heat dissipation channels, current sensors, three-phase output copper bus, circuit boards and other functional components.
[0003] In common motor controllers, the above-mentioned multiple functional components all exist in the form of parts, which result in problems such as a large number of parts and high assembly complexity. Utility Model Content
[0004] The main purpose of the utility model is to provide an integrated component, aiming to provide an integrated component that is easy to assemble, thereby improving the assembly efficiency of the motor controller.
[0005] To achieve the above-mentioned purpose, the integrated component proposed by the utility model is applied to a motor controller, and the integrated component includes:
[0006] Bracket;
[0007] A filter module is installed on the bracket, and the filter module includes a first conductive sheet; and
[0008] A busbar capacitor module is installed on the bracket, and the busbar capacitor module includes an electrically connected second conductive sheet and a capacitor core package, the second conductive sheet is also electrically connected to the first conductive sheet, and the capacitor core package is used as an X capacitor of the filter module.
[0009] Optionally, along the first direction, the bracket has a first side and a second side relative to each other, and on the first side, the bracket is recessed toward the second side to form a receiving cavity, and the filter module and the bus capacitor module are at least partially installed in the receiving cavity.
[0010] Optionally, along the second direction, the bracket has a first end and a second end opposite to each other, and the bracket is provided with a first through-hole at the first end, and the second conductive sheet passes through the first through-hole.
[0011] Optionally, the integrated component further includes a magnetic core component, and at the second end, the bracket is provided with a second through-hole, the magnetic core component is installed in the second through-hole, and at least a portion of the magnetic core component is exposed on the second side.
[0012] Optionally, the filter module also includes a conductive rod, a common-mode inductor, a Y capacitor and a grounded conductive sheet, the conductive rod passes through the common-mode inductor and the Y capacitor and is electrically connected to the first conductive sheet, one pole of the Y capacitor is electrically connected to the first conductive sheet, and the other pole is electrically connected to the grounded conductive sheet.
[0013] The utility model also provides a motor controller, comprising a circuit board, a power module and the integrated component, wherein the power module is located at the second side, and the circuit board is located at a side of the power module away from the integrated component.
[0014] Optionally, on the first side, the bracket is provided with a liquid inlet and a liquid outlet, and on the second side, the bracket is provided with a liquid groove, the liquid inlet is connected with the liquid outlet through the liquid groove, the liquid groove is used to contain coolant, and the power module cover is arranged on the notch of the liquid groove to form a cooling liquid channel.
[0015] Optionally, on the second side, a mounting groove is provided on the bracket, and the mounting groove is arranged close to the liquid inlet, and a temperature measuring device is installed in the mounting groove, and the temperature measuring device is used to measure the temperature at the liquid inlet.
[0016] Optionally, the integrated component and the temperature measuring device are integrated by one-time potting.
[0017] The utility model also provides a power assembly, comprising a motor and the motor controller, wherein the motor controller is used to drive the motor.
[0018] A technical solution of the utility model is to set a bracket and a filter module and a busbar capacitor module installed on the bracket in an integrated component, wherein the filter module includes a first conductive sheet, the busbar capacitor module includes an electrically connected second conductive sheet and a capacitor core package, and the second conductive sheet is also electrically connected to the first conductive sheet, so that the capacitor core package is used as the X capacitor of the filter module. Compared with the prior art, the X capacitor and the Y capacitor need to be separately set in the filter module. In the utility model, the capacitor core package is used as the X capacitor of the filter module. On the one hand, the filter module and the busbar capacitor module are highly integrated, thereby providing an integrated component with simple assembly, and improving the assembly efficiency of the motor controller; on the other hand, the X capacitor of the filter module and the capacitor core package of the busbar capacitor module can be shared, so that there is no need to set the X capacitor in the filter module to save costs; on the other hand, not setting the X capacitor in the filter module is also conducive to reducing the overall volume of the integrated component and saving the installation space of the motor controller. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the integrated component of the utility model;
[0021] Figure 2 for Figure 1 An exploded structural diagram of an integrated component embodiment;
[0022] Figure 3 for Figure 2 A schematic structural diagram of an embodiment of a filter module in an integrated component;
[0023] Figure 4 for Figure 3 A cross-sectional view of an embodiment of a filter module;
[0024] Figure 5 for Figure 2 A schematic structural diagram of an embodiment of a busbar capacitor module in an integrated component;
[0025] Figure 6 for Figure 5 A cross-sectional view of an embodiment of a busbar capacitor module;
[0026] Figure 7 for Figure 2 A schematic structural diagram of an embodiment of a bracket in an integrated assembly;
[0027] Figure 8 for Figure 7 A schematic diagram of the structure of the bracket from another perspective;
[0028] Fig. 9 This is a schematic diagram of the structure of an embodiment of a motor controller of the utility model;
[0029] Fig.10 for Fig. 9 Schematic diagram of the exploded structure of an embodiment of a motor controller.
[0030] Description of Figure Numbers:
[0031]
[0032]
[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0036] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B; in addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0037] In the powertrain system, the motor controller, as a core component, contains DC input copper bus, filter components (common mode inductor, X capacitor, Y capacitor), bus capacitor, power module, heat dissipation channel, current sensor, three-phase output copper bus, circuit board and other functional components.
[0038] In common motor controllers, the above-mentioned multiple functional components all exist in the form of parts, which result in problems such as a large number of parts and high assembly complexity.
[0039] In view of this, the utility model proposes an integrated component applied to a motor controller.
[0040] Please refer to Figures 1 to 6In the embodiment of the utility model, the integrated component 100 includes a bracket 200 and a filter module 300 and a busbar capacitor module 400 mounted on the bracket 200. The filter module 300 includes a first conductive sheet 310; the busbar capacitor module 400 includes an electrically connected second conductive sheet 410 and a capacitor core package 420, the second conductive sheet 410 is also electrically connected to the first conductive sheet 310, and the capacitor core package 420 is used as an X capacitor of the filter module 300.
[0041] Specifically, Figures 3 to 6 As shown, the first conductive sheet 310, the second conductive sheet 410 and the capacitor core package 420 include a positive electrode and a negative electrode respectively, the positive electrode of the capacitor core package 420 is electrically connected to the positive electrode of the second conductive sheet 410, and the negative electrode of the capacitor core package 420 is electrically connected to the negative electrode of the second conductive sheet 410. At the same time, the positive electrode of the second conductive sheet 410 is also electrically connected to the positive electrode of the first conductive sheet 310, and the negative electrode of the second conductive sheet 410 is also electrically connected to the negative electrode of the first conductive sheet 310. In this way, the electrical connection between the filter module 300 and the busbar capacitor module 400 is achieved, and the capacitor core package 420 in the busbar capacitor module 400 can also act as the X capacitor of the filter module 300.
[0042] In one embodiment, if Figure 5 and Figure 6 As shown, the busbar capacitor module 400 includes a plurality of capacitor core packages 420, a second conductive sheet 410, and insulating paper 430. The insulating paper 430 is between the positive and negative electrodes of the second conductive sheet 410 to insulate the positive and negative electrodes of the second conductive sheet 410.
[0043] A technical solution of the utility model is to set a bracket 200 and a filter module 300 and a bus capacitor module 400 installed on the bracket 200 in an integrated component 100, wherein the filter module 300 includes a first conductive sheet 310, and the bus capacitor module 400 includes an electrically connected second conductive sheet 410 and a capacitor core package 420, and the second conductive sheet 410 is also electrically connected to the first conductive sheet 310, so that the capacitor core package 420 is used as an X capacitor of the filter module 300. Compared with the prior art, in which an X capacitor and a Y capacitor 340 need to be separately provided in the filter module 300, in the present invention, a capacitor core package 420 is used as the X capacitor of the filter module 300. On the one hand, the filter module 300 and the bus capacitor module 400 are highly integrated, thereby providing an integrated component 100 with simple assembly, and improving the assembly efficiency of the motor controller 900; on the other hand, the X capacitor of the filter module 300 and the capacitor core package 420 of the bus capacitor module 400 can be shared, so that there is no need to set an X capacitor in the filter module 300, so as to save costs; on the other hand, not setting an additional X capacitor in the filter module 300 is also beneficial to reducing the overall volume of the integrated component 100, which is beneficial to saving the installation space of the motor controller 900.
[0044] Furthermore, along the first direction, the bracket 200 has a first side 211 and a second side 212 relative to each other. On the first side 211, the bracket 200 is recessed toward the second side 212 to form a receiving cavity 231, and the filter module 300 and the bus capacitor module 400 are at least partially installed in the receiving cavity 231.
[0045] For ease of understanding, the first direction and the second direction are defined, such as Figure 7 and Figure 8 As shown, the first direction is the height direction of the bracket 200, and the second direction is the width direction of the bracket 200. Along the first direction, the bracket 200 has a first side 211 and a second side 212 opposite to each other. Figure 7 In the up and down direction, the first side 211 is below the bracket 200, and the second side 212 is above the bracket 200.
[0046] like Figure 8 As shown, on the first side 211, the bracket 200 is recessed to form a receiving cavity 231, and the receiving cavity 231 is recessed toward the direction close to the second side 212. After the filter module 300 and the busbar capacitor module 400 are electrically connected, they are at least partially installed in the receiving cavity 231 from the first side 211 of the bracket 200. The shape of the receiving cavity 231 is adapted to the filter module 300 and the busbar capacitor module 400 to ensure that both can be at least partially installed in the receiving cavity 231. In the scheme shown in the figure of the utility model, the conductive rod 320 (such as Figure 3 The filter module 300 and the bus capacitor module 400 are both installed on the first side 211 of the bracket 200, which is beneficial to saving the installation space on the bracket 200 and facilitating the arrangement of other components on the bracket 200; at the same time, through one installation step, the filter module 300 and the bus capacitor module 400 can be at least partially installed in the accommodating cavity 231 at the same time, which also improves the simplicity of installation and improves the installation efficiency.
[0047] Furthermore, along the second direction, the bracket 200 has a first end 221 and a second end 222 . The bracket 200 has a first through hole 241 at the first end 221 , and the second conductive sheet 410 passes through the first through hole 241 .
[0048] like Figure 7 As shown, along the second direction, the bracket 200 has a first end 221 and a second end 222. At the first end 221, the bracket 200 is provided with a first through hole 241, and the first through hole 241 connects the first side 211 and the second side 212. After the busbar capacitor module 400 is installed in the accommodating cavity 231, its second conductive sheet 410 passes through the first through hole 241 (as shown in FIG. Figure 1 ), and exposed from the second side 212 so that the second conductive sheet 410 is electrically connected to the power module 600 below.
[0049] Furthermore, if Figure 1 , Figure 2 and Figure 7 As shown, the integrated component 100 further includes a magnetic core component 500 . At the second end 222 , the bracket 200 defines a second through hole 242 . The magnetic core component 500 is installed in the second through hole 242 , and at least a portion of the magnetic core component 500 is exposed at the second side 212 .
[0050] Specifically, the integrated component 100 also includes a magnetic core component 500, which is a magnetic core component 500 of a current detection device. In one embodiment, the current detection device is a current sensor. Along the second direction, the bracket 200 is provided with a second through-hole 242 at the second end 222, and the second through-hole 242 connects the first side 211 and the second side 212. The magnetic core component 500 is installed in the second through-hole 242, and at least part of the magnetic core component 500 is exposed from the second side 212. The magnetic core component 500 includes a plurality of magnetic cores 510 and a plurality of output copper bars 520, one end of the output copper bar 520 is used to be electrically connected to the power module 600 below, so that the alternating current of the power module 600 is output. Among them, the magnetic core 510 and the output copper bar 520 are exposed from the second side 212.
[0051] Furthermore, if Figure 3 and Figure 4 As shown, the filter module 300 also includes a conductive rod 320, a common-mode inductor 330, a Y capacitor 340 and a grounded conductive sheet 350. The conductive rod 320 passes through the common-mode inductor 330 and the Y capacitor 340 and is electrically connected to the first conductive sheet 310. One pole of the Y capacitor 340 is electrically connected to the first conductive sheet 310, and the other pole is electrically connected to the grounded conductive sheet 350.
[0052] Specifically, the filter module 300 further includes a conductive rod 320, a common mode inductor 330, a Y capacitor 340 and a grounded conductive sheet 350, wherein the conductive rod 320 includes a positive conductive rod 320 and a negative conductive rod 320, the positive and negative conductive rods 320 pass through the common mode inductor 330 together, and then pass through the Y capacitor 340 respectively, one pole of the core package of the Y capacitor 340 is connected to the grounded conductive sheet 350, and the other pole is connected to the first conductive sheet 310, and the first conductive sheet 310 is also electrically connected to the conductive rod 320. The grounded conductive sheet 350 isolates the electromagnetic fields on both sides of the grounded conductive sheet 350 in space.
[0053] In one embodiment, the bracket 200 is made of metal, and one end of the grounding conductive sheet 350 away from the Y capacitor 340 is in contact with the metal bracket 200 to be grounded.
[0054] The utility model also provides a motor controller 900, such as Fig. 9 and Fig.10 As shown, the motor controller 900 includes a circuit board 700, a power module 600 and an integrated component 100. The specific structure of the integrated component 100 refers to the above embodiment. Since the motor controller 900 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the power module 600 is located on the second side 212, and the circuit board 700 is located on the side of the power module 600 away from the integrated component 100.
[0055] Specifically, Fig.10 As shown, the power module 600 is mounted on the second side 212 of the bracket 200, and the power module 600 is electrically connected to the second conductive sheet 410 of the busbar capacitor module 400, and the connection method can be laser welding, screw fastening, etc. The power module 600 is also electrically connected to the output copper bus 520 of the magnetic core assembly 500, and the connection method can be laser welding, screw fastening, etc. The power module 600 is fixedly connected to the bracket 200 by screws or rivets. Along the first direction, the circuit board 700 is mounted on the second side 212 of the bracket 200 and is located above the power module 600. The circuit board 700 is fixed to the bracket 200 by screws or rivets, and the signal pin 610 of the power module 600 is connected to the circuit board 700 by crimping or welding.
[0056] Furthermore, if Figure 7 , Figure 8 and Fig.10 As shown, on the first side 211, the bracket 200 is provided with a liquid inlet 232 and a liquid outlet 233, and on the second side 212, the bracket 200 is provided with a liquid tank 251, the liquid inlet 232 is connected with the liquid outlet 233 through the liquid tank 251, the liquid tank 251 is used to contain the coolant, and the power module 600 is covered on the notch of the liquid tank 251 to form a cooling liquid channel.
[0057] Specifically, to facilitate the heat dissipation of the motor controller 900, along the first direction, the bracket 200 is provided with a liquid inlet 232 and a liquid outlet 233 on the first side 211, and the bracket 200 is provided with a liquid groove 251 on the second side 212. The liquid groove 251 is recessed toward the second side 212, and the liquid inlet 232 is connected to the liquid outlet 233 through the liquid groove 251. In one embodiment, the bottom wall of the liquid groove 251 is shared with the bottom wall of the accommodating cavity 231, so that the overall structure of the motor controller 900 is more compact. The liquid groove 251 is used to accommodate the coolant, and the power module 600 is covered at the notch of the liquid groove 251. More specifically, the heat sink of the power module 600 is covered at the notch of the liquid groove 251, so that the heat sink and the liquid groove 251 constitute a cooling liquid channel. To ensure the sealing of the cooling liquid channel, a sealing groove 253 is provided on the bracket 200 along the entire circumference of the liquid groove 251, and a sealing gasket is installed in the sealing groove 253. When the power module 600 is covered on the notch of the liquid groove 251, the heat sink is pressed on the sealing gasket, thereby improving the sealing of the cooling liquid channel.
[0058] It can be understood that the liquid tank 251 is directly set on the bracket 200, and along the first direction, the filter module 300 and the bus capacitor module 400 are installed on the first side 211 of the bracket 200, and the power module 600 is installed on the second side 212 of the bracket 200; along the second direction, the magnetic core assembly 500 is installed at the second end 222 of the bracket 200. Moreover, the filter module 300, the bus capacitor module 400, the power module 600 and the magnetic core assembly 500 are all in direct contact with the tank wall of the liquid tank 251, which is conducive to the cooling effect of the coolant in the liquid tank 251 on the filter module 300, the bus capacitor module 400, the power module 600 and the magnetic core assembly 500, thereby improving the power density of the power module 600 and the cooling and heat dissipation effect of the motor controller 900.
[0059] Furthermore, if Figure 7 and Fig.10 As shown, on the second side 212 , a mounting groove 252 is provided on the bracket 200 , and the mounting groove 252 is disposed close to the liquid inlet 232 . A temperature measuring device 800 is installed in the mounting groove 252 , and the temperature measuring device 800 is used to measure the temperature at the liquid inlet 232 .
[0060] Specifically, along the first direction, the bracket 200 is provided with a mounting groove 252 on the second side 212, and a temperature measuring device 800 is installed in the mounting groove 252. The mounting groove 252 is close to the liquid inlet 232 on the first side 211, and the temperature measuring device 800 is used to measure the temperature at the liquid inlet 232. In one embodiment, the groove wall of the mounting groove 252 is the side wall of the liquid inlet 232, so that the temperature measuring device 800 can measure the temperature at the liquid inlet 232 more accurately. In one embodiment, the temperature measuring device 800 uses a thermocouple or a temperature sensor.
[0061] Furthermore, the integrated component 100 and the temperature measuring device 800 are integrated by one-time potting.
[0062] Specifically, in one embodiment, the structure of the mounting groove 252 of the temperature measuring device 800 is set as two opposite mounting arms, and a gap is formed between the two mounting arms. When the motor controller 900 is assembled, the integrated component 100 and the temperature measuring device 800 are integrated together through a single potting. After the integrated component 100 is assembled, a work board is installed at the bottom of the second side 212 of the bracket 200, that is, the work board is located at the end of the filter module 300 and the busbar capacitor module 400 away from the bracket 200. Then install the temperature measuring device 800 in the mounting groove 252. When potting, glue is poured from the second side 212 of the bracket 200. Generally, the glue pouring point is selected at the gap between the second conductive sheet 410 and the first through-hole 241, so that the glue drips from the gap onto the work board. As the glue pouring proceeds, the glue rises along the first side 211 toward the second side 212 until the glue overflows the gap, and then the glue flows on the side of the second side 212 of the bracket 200, flows to the installation groove 252, and the glue enters the notch to bond with the temperature measuring device 800, thereby integrating the temperature measuring device 800 and the integrated component 100 through one-time pouring.
[0063] Of course, in other embodiments, the mounting groove 252 may also be a fan-shaped structure to form a gap for the glue to contact the temperature measuring device 800, and the specific structure of the mounting groove 252 is not limited here. It can be understood that the outer periphery of the sealing groove 253 is formed with a step compared to the end surface of the second side 212 of the bracket 200, so that during the potting process, the glue will not flow into the liquid channel. In one embodiment, the glue is epoxy resin.
[0064] During the potting process, the filter module 300, the busbar capacitor module 400, the magnetic core assembly 500 and the temperature measuring device 800 are potted simultaneously, integrating the potting process and saving equipment investment, energy consumption and manufacturing costs compared to separate potting.
[0065] With such an arrangement, the number of parts in the motor controller 900 is greatly reduced, the assembly complexity and manufacturing cost of the product are reduced, and the problems of large size, heavy weight and high failure rate of the existing solutions are greatly improved.
[0066] The utility model also proposes a power assembly, which includes a motor and a motor controller 900. The specific structure of the motor controller 900 refers to the above embodiment. Since the power assembly adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the motor controller 900 is used to drive the motor.
[0067] In this way, the size of the motor controller 900 is greatly reduced, so that the motor controller 900 can be flexibly applied to various application scenarios such as single-motor powertrain, distributed drive powertrain, hybrid powertrain, all-in-one controller, etc., thereby improving the scope of application of the motor controller 900.
[0068] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. An integrated component, applied to a motor controller, characterized in that: The integrated components include: Bracket; A filter module is installed on the bracket, and the filter module includes a first conductive sheet; and A busbar capacitor module is installed on the bracket, and the busbar capacitor module includes an electrically connected second conductive sheet and a capacitor core package, the second conductive sheet is also electrically connected to the first conductive sheet, and the capacitor core package is used as an X capacitor of the filter module.
2. The integrated assembly according to claim 1, characterized in that Along the first direction, the bracket has a first side and a second side opposite to each other. On the first side, the bracket is recessed toward the second side to form a receiving cavity. The filter module and the busbar capacitor module are at least partially installed in the receiving cavity.
3. The integrated assembly according to claim 2, characterized in that Along the second direction, the bracket has a first end and a second end opposite to each other. The bracket is provided with a first through-hole at the first end, and the second conductive sheet passes through the first through-hole.
4. The integrated assembly according to claim 3, characterized in that The integrated component further includes a magnetic core component. At the second end, the bracket is provided with a second through-hole. The magnetic core component is installed in the second through-hole, and at least a portion of the magnetic core component is exposed on the second side.
5. The integrated component according to any one of claims 1 to 4, characterized in that: The filter module also includes a conductive rod, a common-mode inductor, a Y capacitor and a grounded conductive sheet. The conductive rod passes through the common-mode inductor and the Y capacitor and is electrically connected to the first conductive sheet. One electrode of the Y capacitor is electrically connected to the first conductive sheet, and the other electrode is electrically connected to the grounded conductive sheet.
6. A motor controller, characterized in that: The integrated component comprises a circuit board, a power module and the integrated component according to any one of claims 2 to 4, wherein the power module is located on the second side, and the circuit board is located on a side of the power module away from the integrated component.
7. The motor controller according to claim 6, characterized in that: On the first side, the bracket is provided with a liquid inlet and a liquid outlet, and on the second side, the bracket is provided with a liquid tank, the liquid inlet is connected with the liquid outlet through the liquid tank, the liquid tank is used to contain coolant, and the power module cover is arranged on the notch of the liquid tank to form a cooling liquid channel.
8. The motor controller according to claim 7, characterized in that: On the second side, a mounting groove is provided on the bracket, and the mounting groove is arranged close to the liquid inlet. A temperature measuring device is installed in the mounting groove, and the temperature measuring device is used to measure the temperature at the liquid inlet.
9. The motor controller according to claim 8, characterized in that: The integrated component and the temperature measuring device are integrated through one-time potting.
10. A powertrain, characterized in that: The invention comprises a motor and a motor controller as claimed in any one of claims 6 to 9, wherein the motor controller is used to drive the motor.