Motor controller and driving system

Abstract

The invention discloses a motor controller and a driving system, and belongs to the technical field of controllers. According to the motor controller and the driving system, the driving heat dissipation piece covers the groove opening of the cooling groove, so that the heat dissipation structure of the driving heat dissipation piece can extend into the cooling agent in the cooling groove, the contact area between the driving heat dissipation piece and the cooling agent is greatly increased, and then the heat dissipation effect of the driving plate is improved; and the capacitor, the power supply connecting assembly, the signal adapter and the control heat dissipation piece can be cooled through the cooling part, so that the motor controller has better heat dissipation performance. Meanwhile, the layout of the motor controller is more reasonable, interfaces are rich, all the assemblies are matched more tightly, interface expansion is more flexible, the assembling and disassembling steps are simplified, and the compatibility and adaptability of a driving system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field, and in particular to a motor controller and a drive system. Background Art

[0002] In modern new energy vehicles, vehicle drive motors usually use high-speed motors to meet the power output and response speed requirements of electric vehicles. High-speed motors have higher speeds and energy density, which puts higher requirements on the design of motor controllers.

[0003] In the prior art, the cooling efficiency of the cooling mechanism of the motor controller is too low to meet the cooling requirements of the motor controller of the high-speed motor. At the same time, the size and weight of such a motor controller are both large, which not only has low heat transfer efficiency, but also cannot meet the requirements of new energy vehicles for lightweight and space optimization. Summary of the invention

[0004] The object of the present invention is to provide a motor controller and a drive system, which can not only achieve efficient heat dissipation but also reduce the volume and weight of the motor controller.

[0005] In order to achieve the above objectives, the following technical solutions are provided:

[0006] Motor controller, including:

[0007] A housing, wherein a cooling portion is disposed in the housing, the cooling portion includes a cooling groove, and the housing further includes a first cooling inlet and a second cooling inlet and an outlet both in communication with the cooling groove;

[0008] A driving assembly, the driving assembly comprising a driving plate and a driving heat sink arranged corresponding to the driving plate, the driving heat sink covering the notch of the cooling groove to close the cooling groove, the driving heat sink comprising a heat dissipation structure extending into the cooling groove;

[0009] A control assembly, the control assembly comprising a control board electrically connected to the drive board and a control heat sink arranged corresponding to the control board, the control heat sink being arranged between the drive board and the control board;

[0010] A capacitor, the capacitor is arranged in the housing, and the capacitor is electrically connected to the driving board;

[0011] A power connection assembly, the power connection assembly is arranged on the housing, the capacitor and the power connection assembly are respectively located on both sides of the cooling portion along the first direction; the driving board and the capacitor are both electrically connected to the power connection assembly;

[0012] A signal adapter is provided on the housing and is located on one side of the cooling portion along a second direction, and the signal adapter is electrically connected to the control board; the second direction is perpendicular to the first direction.

[0013] As a preferred technical solution of the above motor controller, the cooling tank includes:

[0014] A main groove, the main groove is opened on the surface of one side of the cooling part; the heat dissipation structure can extend into the main groove;

[0015] A first connecting groove, which is disposed on the bottom wall of the main groove and is connected to the first cooling inlet and outlet;

[0016] A second connecting groove is provided on the bottom wall of the main groove and is connected with the second cooling inlet and outlet.

[0017] As a preferred technical solution of the above motor controller, the cooling unit includes:

[0018] A first cooling branch, wherein the cooling groove is provided in the first cooling branch;

[0019] a second cooling branch, the second cooling branch being connected to the first cooling branch, a first cooling channel being provided in the second cooling branch, and the first cooling inlet and outlet being connected to the cooling groove through the first cooling channel;

[0020] The third cooling branch is connected to the first cooling branch, a second cooling channel is arranged in the third cooling branch, and the second cooling inlet and outlet are connected to the cooling groove through the second cooling channel.

[0021] As a preferred technical solution of the above motor controller, the capacitor and the power connection assembly are respectively located on both sides of the first cooling branch; and / or,

[0022] The signal adapter is located at one side of the second cooling branch; and / or,

[0023] The signal adapter is electrically connected to the control board via a signal connector, and the signal connector is disposed on one side of the second cooling branch; and / or,

[0024] The capacitor is electrically connected to the power connection assembly via a first adapter, and the first adapter is located at one side of the third cooling branch.

[0025] As a preferred technical solution of the above-mentioned motor controller, the heat dissipation structure includes a plurality of heat dissipation protrusions arranged in an arranged manner.

[0026] As a preferred technical solution of the above motor controller, the driving heat sink is made of metal; and / or,

[0027] The control heat sink is made of metal.

[0028] As a preferred technical solution of the above motor controller, a heat conducting material is provided between the control heat sink and the control components of the control board.

[0029] As an optimal technical solution for the above-mentioned motor controller, the control heat sink includes a heat-conducting structure arranged corresponding to the control components of the control board, the heat-conducting structure is protruded on the side of the control heat sink facing the control board, and a heat-conducting material is provided between the heat-conducting structure and the corresponding control components.

[0030] As a preferred technical solution of the above-mentioned motor controller, the motor controller also includes a current detection component arranged corresponding to the power connection component, and the current detection component is electrically connected to the power connection component.

[0031] As a preferred technical solution of the above-mentioned motor controller, the motor controller also includes a mounting member, which is fixed in the shell and includes a plurality of mounting structures. The current detection member can be detachably connected to at least one of the mounting structures.

[0032] In order to achieve the above object, a drive system is also provided, including a drive motor and a motor controller as described in any one of the above items, wherein the motor controller is communicatively connected to the drive motor.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] In the motor controller and drive system of the present invention, the drive heat sink cover is arranged at the notch of the cooling groove, so that the heat dissipation structure of the drive heat sink can extend into the coolant in the cooling groove, which greatly increases the contact area between the drive heat sink and the refrigerant, thereby improving the heat dissipation effect of the drive board; at the same time, the capacitor and the power connection component are respectively arranged on both sides of the cooling part along the first direction, the signal adapter is arranged on one side of the cooling part along the second direction, and the control heat sink is arranged between the drive board and the control board. The cooling part can also cool the capacitor, the power connection component, the signal adapter and the control heat sink, so that the motor controller has better heat dissipation performance and effectively dissipates heat during high-load operation, ensuring that the high-speed motor maintains stable high performance, thereby improving the efficiency of the drive system and extending the service life of the drive motor and the motor controller.

[0035] At the same time, the layout of the motor controller of the present invention is more reasonable and the interfaces are rich, the coordination between the various components is closer, and the interface expansion is more flexible, which is conducive to simplifying the assembly and disassembly steps and improving the compatibility and adaptability of the drive system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A first structural diagram of a motor controller according to an embodiment of the present invention;

[0037] Figure 2 A second structural diagram of a motor controller according to an embodiment of the present invention;

[0038] Figure 3 is a cross-sectional view of a motor controller according to an embodiment of the present invention;

[0039] Figure 4 Schematic diagram of the internal structure of the motor controller in an embodiment of the present invention;

[0040] Figure 5 is a first structural schematic diagram of a housing in an embodiment of the present invention;

[0041] Figure 6 is a second structural schematic diagram of the housing in an embodiment of the present invention;

[0042] Figure 7 This is a first structural schematic diagram of a driving component in an embodiment of the present invention;

[0043] Figure 8 A second structural schematic diagram of a driving assembly in an embodiment of the present invention;

[0044] Figure 9 This is a first structural schematic diagram of a control component in an embodiment of the present invention;

[0045] Figure 10 A second structural schematic diagram of a control component in an embodiment of the present invention;

[0046] Figure 11 This is a first structural schematic diagram of a mounting member in an embodiment of the present invention;

[0047] Figure 12 is a second structural schematic diagram of the mounting member in an embodiment of the present invention;

[0048] Figure 13 Schematic diagram of the structure of the signal adapter in the embodiment of the present invention.

[0049] Reference numerals:

[0050] 1. Shell; 1a. Bottom shell; 1b. Upper cover; 11. Cooling part; 111. First cooling branch; 1111. Cooling groove; 11111. Main groove; 11112. First connecting groove; 11113. Second connecting groove; 112. Second cooling branch; 1121. First cooling channel; 113. Third cooling branch; 1131. Second cooling channel; 12. First cooling inlet and outlet; 13. Second cooling inlet and outlet; 14. Fixed foot; 2. Drive assembly; 21 , drive board; 22, drive heat sink; 221, heat dissipation protrusion; 3, control component; 31, control board; 32, control heat sink; 321, thermal conductive protrusion; 4, capacitor; 41, lead-in terminal; 42, lead-out terminal; 5, power connection component; 51, DC connector; 511, DC adapter; 52, AC connector; 521, AC adapter; 6, signal adapter; 7, current detection component; 8, mounting component; 81, mounting structure. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0052] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0054] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "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 being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0057] Embodiments of the present invention are described in detail below, examples of which 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.

[0058] like Figures 1 to 13 As shown, this embodiment provides a motor controller and a drive system, the drive system includes a drive motor and a motor controller, the motor controller is communicatively connected with the drive motor, so as to control the drive motor to work through the motor controller. Optionally, the drive motor is a high-speed motor.

[0059] The motor controller includes a housing 1, a drive component 2, a control component 3, a capacitor 4, a power connection component 5 and a signal adapter 6. A cooling portion 11 is provided in the housing 1. The cooling portion 11 includes a cooling groove 1111. The housing 1 also includes a first cooling inlet and outlet 12 and a second cooling inlet and outlet 13 both connected to the cooling groove 1111. The drive component 2 includes a drive plate 21 and a drive heat sink 22 corresponding to the drive plate 21. The drive heat sink 22 covers the notch of the cooling groove 1111 to close the cooling groove 1111. The drive heat sink 22 includes a heat dissipation structure extending into the cooling groove 1111. The control component 3 includes A control board 31 electrically connected to the drive board 21 and a control heat sink 32 corresponding to the control board 31, the control heat sink 32 is arranged between the drive board 21 and the control board 31; the capacitor 4 is arranged in the shell 1, and the capacitor 4 is electrically connected to the drive board 21; the power connection component 5 is arranged in the shell 1, and the capacitor 4 and the power connection component 5 are respectively located on both sides of the cooling part 11 along the first direction; the drive board 21 and the capacitor 4 are both electrically connected to the power connection component 5; the signal adapter 6 is arranged in the shell 1 and is located on one side of the cooling part 11 along the second direction, and the signal adapter 6 is electrically connected to the control board 31; the second direction is perpendicular to the first direction.

[0060] In the motor controller of this embodiment, the driving heat sink 22 is covered on the notch of the cooling groove 1111 so that the heat dissipation structure of the driving heat sink 22 can extend into the coolant in the cooling groove 1111, which greatly increases the contact area between the driving heat sink 22 and the refrigerant, thereby improving the heat dissipation effect of the driving board 21; at the same time, the capacitor 4 and the power connection component 5 are respectively arranged on both sides of the cooling part 11 along the first direction, the signal adapter 6 is arranged on one side of the cooling part 11 along the second direction, and the control heat sink 32 is arranged between the driving board 21 and the control board 31. The cooling part 11 can also cool the capacitor 4, the power connection component 5, the signal adapter 6 and the control heat sink 32, so that the motor controller has better heat dissipation performance and effectively dissipates heat during high-load operation, ensuring that the high-speed motor maintains stable high performance, thereby improving the efficiency of the drive system and extending the service life of the drive motor and the motor controller.

[0061] At the same time, the layout of the motor controller of this embodiment is more reasonable, and the cooperation between the various components is closer, which not only reduces unnecessary gaps and redundant structures and saves space, but also improves the heat transfer efficiency, helps to avoid local overheating and maintain the temperature balance of the motor controller, and can adapt to the limited vehicle space and the strict requirements of electric vehicles on the overall weight; the motor controller of this embodiment uses a compact design to make the fixation and support between the various components more firm, which not only helps to improve the mechanical strength of the motor controller, but also can effectively reduce the electromagnetic noise generated by vibration, thereby improving the anti-interference performance of the motor controller; this design also helps to improve the stability and reliability of the motor controller in complex working environments, ensuring its long-term stable operation.

[0062] Furthermore, the motor controller of this embodiment has richer interfaces and more flexible interface expansion, which is conducive to simplifying the assembly and disassembly steps and improving the compatibility and adaptability of the drive system.

[0063] Optionally, the housing 1 is made of metal aluminum, which has good heat dissipation effect and is conducive to achieving lightweight.

[0064] Alternatively, if Figure 1 and Figure 2 As shown, a fixing structure for connecting with the vehicle frame is provided at the bottom of the housing 1. Exemplarily, the fixing structure includes four fixing feet 14, which are arranged in groups of two, and the two groups of fixing feet 14 are respectively arranged on both sides of the housing 1 along the second direction.

[0065] Optionally, the housing 1 includes a bottom shell 1a and an upper cover 1b, the bottom shell 1a is a structure with one end open and the other end closed, and the upper cover 1b is arranged on the opening of the bottom shell 1a and closes the opening, thereby facilitating assembly. Exemplarily, the upper cover 1b is fixedly connected to the bottom shell 1a by fasteners such as bolts.

[0066] Specifically, Figure 5 and Figure 6 As shown, the cooling part 11 is integrally formed on the bottom wall of the bottom shell 1a, which has good processability and is easy to manufacture. For example, the cooling groove 1111 is a rectangular structure, and the cooling groove 1111 is opened on the side of the cooling part 11 facing the upper cover 1b, which has a simple structure and is easy to manufacture.

[0067] Furthermore, a first sealing member such as a sealing ring is provided between the upper cover 1b and the bottom shell 1a to ensure the sealing of the shell 1, prevent moisture and dust from the external environment from entering the shell 1, and improve the safety of the motor controller. Exemplarily, a first waterproof groove is provided on the contact surface of the bottom shell 1a and the upper cover 1b, and the first sealing member is embedded in the first waterproof groove, thereby achieving the purpose of waterproofing and sealing.

[0068] Optionally, a second sealing member such as a sealing ring is provided between the driving heat sink 22 and the cooling portion 11 to ensure the sealing of the cooling groove 1111 and improve the safety of the motor controller. Exemplarily, the contact surface between the cooling portion 11 and the driving heat sink 22 is provided with a second waterproof groove, and the second sealing member is embedded in the second waterproof groove, thereby achieving the purpose of waterproofing and sealing.

[0069] Alternatively, if Figure 1 and Figure 3 As shown, the power connection assembly 5 includes two DC connectors 51, and the two DC connectors 51 are connected to the capacitor 4. Exemplarily, the DC connector 51 includes a DC adapter 511; the capacitor 4 is provided with two lead-in terminals 41, and the two lead-in terminals 41 are electrically connected to the DC adapters 511 of the two DC connectors 51 through the two DC adapters 511, respectively, so as to provide positive and negative DC power to the capacitor 4. Further, the capacitor 4 is also provided with three pairs of lead-out terminals 42, and the three pairs of lead-out terminals 42 are directly electrically connected to the drive board 21, so as to provide a reliable DC power supply to the drive board 21. Exemplarily, the capacitor 4 is a film capacitor.

[0070] Optionally, the power connection assembly 5 further includes three AC connectors 52 for electrically connecting to the drive board 21, and the three AC connectors 52 are respectively connected to the U-phase line, the V-phase line, and the W-phase line of the power supply device to supply power to the drive board 21. Exemplarily, the AC connector 52 includes an AC adapter 521, and the AC connector 52 is electrically connected to the drive board 21 through the AC adapter 521, which is conducive to improving assembly convenience.

[0071] Exemplarily, the DC power adapter 511 is a copper galvanized adapter. The AC power adapter 521 is a copper galvanized adapter. By using the copper galvanized adapter, the corrosion resistance, conductivity and stability of the power connection component 5 can be improved, the current loss can be reduced, and the stability and reliability of the power signal can be ensured.

[0072] Alternatively, if Figure 5 and Figure 6As shown, the cooling groove 1111 includes a main groove 11111, a first connecting groove 11112 and a second connecting groove 11113. The main groove 11111 is opened on the surface of one side of the cooling part 11; the heat dissipation structure can extend into the main groove 11111; the first connecting groove 11112 is opened on the groove bottom wall of the main groove 11111 and communicates with the first cooling inlet and outlet 12; the second connecting groove 11113 is opened on the groove bottom wall of the main groove 11111 and communicates with the second cooling inlet and outlet 13. In this way, the first connecting groove 11112 and the second connecting groove 11113 can buffer the coolant, so that the coolant flows smoothly in the cooling groove 1111, and improve the consistency of the flow rate of the coolant in different areas in the cooling groove 1111, which is conducive to improving the heat dissipation efficiency of the driving heat sink 22.

[0073] Optionally, the cooling part 11 includes a first cooling branch 111, a second cooling branch 112 and a third cooling branch 113, and the cooling groove 1111 is arranged in the first cooling branch 111; the second cooling branch 112 is connected to the first cooling branch 111, and a first cooling channel 1121 is arranged in the second cooling branch 112, and the first cooling inlet and outlet 12 is connected to the cooling groove 1111 through the first cooling channel 1121; the third cooling branch 113 is connected to the first cooling branch 111, and a second cooling channel 1131 is arranged in the third cooling branch 113, and the second cooling inlet and outlet 13 is connected to the cooling groove 1111 through the second cooling channel 1131, and then the coolant can be passed into the first cooling channel 1121 through the first cooling inlet and outlet 12, and then the coolant can be passed into the cooling groove 1111 through the first cooling channel 1121, and the coolant in the cooling groove 1111 can be discharged through the second cooling channel 1131 and the second cooling inlet and outlet 13. Of course, the coolant can also be introduced into the cooling groove 1111 through the second cooling inlet and outlet 13 and the second cooling channel 1131 , and the coolant in the cooling groove 1111 can be discharged through the first cooling inlet and outlet 12 and the first cooling channel 1121 .

[0074] It should be noted that the first cooling channel 1121 and the second cooling channel 1131 are used to pass coolant into or discharge the cooling slot 1111. Therefore, relative to the cooling slot 1111, the cross-sectional areas of the first cooling channel 1121 and the second cooling channel 1131 are both smaller, thereby making the volumes of the second cooling branch 112 and the second cooling branch 112 smaller, which has the effect of reducing the total volume of the cooling portion 11. By providing the first cooling channel 1121 and the second cooling channel 1131, the circulation time of the coolant in the housing 1 is extended, and the volume of the cooling portion 11 will not be too large, which is conducive to improving the space utilization in the housing 1 and improving the lightweight and compatibility of the motor controller.

[0075] The cross section of the first cooling channel 1121 is a cross section perpendicular to the flow direction of the fluid in the first cooling channel 1121 ; the cross section of the second cooling channel 1131 is a cross section perpendicular to the flow direction of the fluid in the second cooling channel 1131 .

[0076] The configuration of the cooling unit 11 can better improve the heat dissipation performance of the motor controller and reduce the structural complexity of the motor controller, thereby ensuring that the motor controller can work stably for a long time.

[0077] Specifically, Figure 4 , Figure 5 and Figure 6 As shown, the first cooling inlet and outlet 12 and the second cooling inlet and outlet 13 are respectively arranged on both sides of the housing 1 along the second direction. Further, the second cooling branch 112 and the second cooling branch 112 are respectively connected to both sides of the first cooling branch 111 along the second direction; the first connecting groove 11112 and the second connecting groove 11113 are respectively arranged on both sides of the main groove 11111 along the second direction; one end of the first cooling channel 1121 is connected to the first cooling inlet and outlet 12, and the other end is connected to the first connecting groove 11112; one end of the second cooling channel 1131 is connected to the second connecting groove 11113, and the other end is connected to the second cooling inlet and outlet 13. Such an arrangement facilitates the capacitor 4, the power connection component 5, the signal adapter 6 and the control heat sink 32 to be arranged around the cooling part 11, so that the capacitor 4, the power connection component 5, the signal adapter 6 and the control heat sink 32 can be cooled by the cooling part 11, thereby improving the heat dissipation performance of the motor controller.

[0078] Alternatively, if Figure 4 As shown, the capacitor 4 and the power connection component 5 are respectively located on both sides of the first cooling branch 111. Compared with the signal adapter 6, the capacitor 4 and the power connection component 5 generate higher heat when working; and the cooling groove 1111 has a larger volume, so that the temperature of the first cooling branch 111 is lower than that of the second cooling branch 112 and the third cooling branch 113. The capacitor 4 and the power connection component 5 are respectively arranged on both sides of the first cooling branch 111, and the first cooling branch 111 can play a certain cooling effect on the capacitor 4 and the power connection component 5, thereby improving the heat dissipation performance and reliability of the motor controller.

[0079] Optionally, the signal adapter 6 is located on one side of the second cooling branch 112, so that the second cooling branch 112 can cool the signal adapter 6 to a certain extent, thereby improving the heat dissipation performance and reliability of the motor controller.

[0080] Optionally, the signal adapter 6 is electrically connected to the control board 31 through a signal connector, and the signal connector is disposed on one side of the second cooling branch 112, so that the second cooling branch 112 can cool the signal connector to a certain extent, thereby improving the heat dissipation performance and reliability of the motor controller. Exemplarily, the signal connector is a flexible flat cable; by connecting the signal adapter 6 to the vehicle ECU waterproof connector, the compatibility and flexibility of the drive system can be enhanced.

[0081] Optionally, the capacitor 4 is electrically connected to the power connection assembly 5 via a first adapter, and the first adapter is located on one side of the third cooling branch 113, so that the third cooling branch 113 can cool the first adapter to a certain extent, thereby improving the heat dissipation performance and reliability of the motor controller. Exemplarily, the first adapter is an adapter.

[0082] Alternatively, if Figure 3 , Figure 7 and Figure 8 As shown, the heat dissipation structure includes a plurality of arranged heat dissipation protrusions 221. By extending the plurality of arranged heat dissipation protrusions 221 into the coolant in the cooling groove 1111, the contact area between the heat dissipation structure and the coolant can be greatly increased, thereby effectively improving the heat exchange efficiency between the driving heat sink 22 and the coolant, greatly improving the heat dissipation performance of the driving plate 21, reducing the temperature of the driving plate 21 when working, and extending the service life of each component of the driving plate 21.

[0083] Exemplarily, the heat dissipation protrusion 221 may be a columnar structure such as a cylinder, or may be a fin-shaped structure. Of course, a part of the heat dissipation protrusions 221 may be a columnar structure, and another part may be a fin-shaped structure.

[0084] Optionally, the driving heat sink 22 is made of metal, which has a higher heat dissipation efficiency. Further, the heat dissipation protrusion 221 is made of metal, which further improves the heat dissipation efficiency of the driving heat sink 22.

[0085] Optionally, the control heat sink 32 is made of metal, which not only improves the heat dissipation efficiency of the control heat sink 32, but also can isolate the strong current of the drive board 21 from the weak current of the control board 31 through the metal control heat sink 32 to achieve the purpose of anti-interference.

[0086] Exemplarily, the driving heat sink 22 , the driving board 21 , the controlling heat sink 32 and the controlling board 31 are stacked in sequence from bottom to top above the cooling portion 11 , and are fixedly connected to the cooling portion 11 by fasteners such as screws.

[0087] Optionally, a heat-conducting material is provided between the control heat sink 32 and the control components of the control board 31, so as to enhance heat conduction through the heat-conducting material, and ensure that the control components of the control board 31 work stably at a safe temperature. At the same time, the provision of the heat-conducting material can effectively reduce the temperature difference and heat accumulation of the control board 31, and further improve the heat dissipation effect and working stability of the control board 31. Exemplarily, the heat-conducting material is thermal grease, which is filled between the control heat sink 32 and the control components of the control board 31.

[0088] Alternatively, if Figure 3 , Figure 9 and Figure 10 As shown, the control heat sink 32 includes a heat-conducting structure corresponding to the control components of the control board 31, the heat-conducting structure is convexly arranged on the side of the control heat sink 32 facing the control board 31, and a heat-conducting material is arranged between the heat-conducting structure and the corresponding control components. The above-mentioned heat-conducting structure is in contact with the control components of the control board 31, which improves the compatibility of the control heat sink 32 and the control board 31, is conducive to improving the heat conduction efficiency, and improves the heat dissipation effect of the control board 31.

[0089] Exemplarily, the heat-conducting structure is a heat-conducting protrusion 321 integrally formed on the control heat sink 32 , which has a simple structure and is easy to manufacture.

[0090] Alternatively, if Figure 3 , Figure 11 and Figure 12 As shown, the motor controller further includes a current detection member 7 arranged corresponding to the power connection assembly 5, and the current detection member 7 is electrically connected to the power connection assembly 5. In other words, the current detection member 7 is arranged in the housing 1 and is arranged close to the power connection assembly 5, which facilitates the connection between the current detection member 7 and the power connection assembly 5, thereby improving the rationality of the layout of the motor controller.

[0091] Optionally, the motor controller further includes a mounting member 8, which is fixed in the housing 1, and includes a plurality of mounting structures 81, and the current detection member 7 can be detachably connected to at least one mounting structure 81. It should be noted that the mounting structure 81 of the mounting member 8 can be adapted to different types of current detection members 7, thereby improving the convenience of replacing the current detection member 7 and improving the compatibility of the housing 1. Exemplarily, the current detection member 7 is a current sensor.

[0092] Exemplarily, the mounting structure 81 includes two threaded holes, which can be threadedly connected to the threaded holes by fasteners such as screws to fix the current detection component 7 to the mounting component 8. Furthermore, the spacing between the two threaded holes of different mounting structures 81 is different, so that different mounting structures 81 are adapted to different models of current detection components 7.

[0093] The motor controller of this embodiment has excellent heat dissipation performance and can effectively dissipate heat during high-load operation, ensuring stable and efficient operation of the high-speed motor, thereby improving the overall efficiency of the drive system and extending the service life of the high-speed motor and the motor controller. The compact design of the motor controller further reduces the size and weight, optimizes the utilization of the vehicle space, and improves the endurance and power performance while ensuring high performance and efficient heat dissipation. At the same time, the reasonable structural layout and rich interface extensions of the motor controller enable close cooperation between the components, simplify the assembly and disassembly process, and improve the compatibility and adaptability of the drive system. In addition, the motor controller fully considers the problems of heat conduction and electromagnetic interference to ensure that the modules can work together efficiently in a complex working environment, showing excellent stability and reliability.

[0094] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A motor controller, characterized in that: include: A housing, wherein a cooling portion is disposed in the housing, the cooling portion includes a cooling groove, and the housing further includes a first cooling inlet and a second cooling inlet and an outlet both in communication with the cooling groove; A driving assembly, the driving assembly comprising a driving plate and a driving heat sink arranged corresponding to the driving plate, the driving heat sink covering the notch of the cooling groove to close the cooling groove, the driving heat sink comprising a heat dissipation structure extending into the cooling groove; A control assembly, the control assembly comprising a control board electrically connected to the drive board and a control heat sink arranged corresponding to the control board, the control heat sink being arranged between the drive board and the control board; A capacitor, the capacitor is arranged in the housing, and the capacitor is electrically connected to the driving board; A power connection assembly, the power connection assembly is arranged on the housing, the capacitor and the power connection assembly are respectively located on both sides of the cooling portion along the first direction; the driving board and the capacitor are both electrically connected to the power connection assembly; A signal adapter is provided on the housing and is located on one side of the cooling portion along a second direction, and the signal adapter is electrically connected to the control board; the second direction is perpendicular to the first direction.

2. The motor controller according to claim 1, characterized in that: The cooling tank comprises: A main groove, the main groove is opened on the surface of one side of the cooling part; the heat dissipation structure can extend into the main groove; A first connecting groove, which is disposed on the bottom wall of the main groove and is connected to the first cooling inlet and outlet; A second connecting groove is provided on the bottom wall of the main groove and is connected with the second cooling inlet and outlet.

3. The motor controller according to claim 1, characterized in that: The cooling unit comprises: A first cooling branch, wherein the cooling groove is provided in the first cooling branch; a second cooling branch, the second cooling branch being connected to the first cooling branch, a first cooling channel being provided in the second cooling branch, and the first cooling inlet and outlet being connected to the cooling groove through the first cooling channel; The third cooling branch is connected to the first cooling branch, a second cooling channel is arranged in the third cooling branch, and the second cooling inlet and outlet are connected to the cooling groove through the second cooling channel.

4. The motor controller according to claim 3, characterized in that: The capacitor and the power connection assembly are respectively located on two sides of the first cooling branch; and / or, The signal adapter is located at one side of the second cooling branch; and / or, The signal adapter is electrically connected to the control board via a signal connector, and the signal connector is disposed on one side of the second cooling branch; and / or, The capacitor is electrically connected to the power connection assembly via a first adapter, and the first adapter is located at one side of the third cooling branch.

5. The motor controller according to claim 1, characterized in that: The heat dissipation structure includes a plurality of heat dissipation protrusions arranged in an array.

6. The motor controller according to claim 1, characterized in that: The drive heat sink is made of metal; and / or, The control heat sink is made of metal.

7. The motor controller according to claim 6, characterized in that: A heat conducting material is provided between the control heat sink and the control components of the control board.

8. The motor controller according to claim 7, characterized in that: The control heat sink comprises a heat conducting structure arranged corresponding to the control components of the control board. The heat conducting structure is protrudingly arranged on a side of the control heat sink facing the control board. Heat conducting material is arranged between the heat conducting structure and the corresponding control components.

9. The motor controller according to any one of claims 1 to 8, characterized in that: The motor controller further includes a current detection component which is arranged corresponding to the power connection component, and the current detection component is electrically connected to the power connection component.

10. The motor controller according to claim 9, characterized in that: The motor controller further comprises a mounting member, wherein the mounting member is fixedly arranged in the housing, and the mounting member comprises a plurality of mounting structures, and the current detecting member can be detachably connected to at least one of the mounting structures.

11. A drive system, characterized in that It comprises a driving motor and a motor controller as described in any one of claims 1 to 10, wherein the motor controller is communicatively connected to the driving motor.

Images