A power module, motor controller, electrically controlled assembly, and vehicle

Abstract

This application discloses a power module, a motor controller, an electronic control assembly, and a vehicle, relating to the field of motor controller technology. The power module includes a converter bridge comprising at least one bridge arm, the at least one bridge arm comprising an upper bridge arm and a lower bridge arm, both the upper and lower bridge arms being connected to signal terminals; at least a portion of the signal terminals are located between the upper and lower bridge arms. In this application, at least a portion of the signal terminals connected to the upper and lower bridge arms are disposed between the upper and lower bridge arms. Compared to a layout scheme that surrounds all signal terminals around the converter bridge, the space between the upper and lower bridge arms can be used to arrange the signal terminals, reducing the layout area occupied by the signal terminals, reducing the overall volume of the power module, facilitating the interconnection between the signal terminals in the power module and external circuits, and also reducing thermal coupling.

Description

[0001] This application claims priority to Chinese Patent Application No. 202510351017.X, filed on March 21, 2025, entitled "A Power Module, Motor Controller, Electronic Control Assembly and Vehicle", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of motor controller technology, and more particularly to a power module, a motor controller, an electronic control assembly, and a vehicle. Background Technology

[0003] The power module is one of the key semiconductor modules in a vehicle control system. At a minimum, the power module can be used for electrical energy conversion. It typically includes a converter bridge; for example, in hybrid vehicles, the power module can convert direct current (DC) to alternating current (AC) to power the drive motor, or convert the AC output from the generator motor to DC to charge the vehicle battery.

[0004] In existing power modules, the multiple signal terminals connected to the converter bridge are usually placed around the edges of the converter bridge. This results in the signal terminals occupying a large layout area in the power module, leading to a larger power module size and making it inconvenient to interconnect the power module with external circuits. Summary of the Invention

[0005] In view of the above problems, this application provides a power module, a motor controller, an electronic control assembly, and a vehicle to reduce the layout area occupied by signal terminals in the power module. The specific solution is as follows:

[0006] The first aspect of this application provides a power module, comprising:

[0007] The converter bridge includes at least one bridge arm, and the at least one bridge arm includes an upper bridge arm and a lower bridge arm, both of which are connected to signal terminals; at least some of the signal terminals are located between the upper bridge arm and the lower bridge arm.

[0008] Optionally, in the above power module, both the upper bridge arm and the lower bridge arm include a first power chip; the signal terminals include: a first terminal connected to a first electrode of the first power chip; a second terminal connected to a second electrode of the first power chip; and a third terminal connected to the control electrode of the first power chip.

[0009] In the signal terminals connected to either the upper or lower bridge arm, the distance between the first terminal and the second terminal is greater than or equal to the distance between the second terminal and the third terminal, and the distance between the first terminal and the third terminal is greater than or equal to the distance between the second terminal and the third terminal.

[0010] Optionally, in the above power module, both the upper bridge arm and the lower bridge arm include a first power chip; the signal terminals include: a first terminal connected to a first electrode of the first power chip; a second terminal connected to a second electrode of the first power chip; and a third terminal connected to the control electrode of the first power chip.

[0011] The distance between the first terminal and the second terminal is greater than or equal to 2mm;

[0012] And / or, the distance between the first terminal and the third terminal is greater than or equal to 2 mm.

[0013] Optionally, in the power module described above, the distance between the first terminal and the second terminal is greater than or equal to 4.5 mm;

[0014] And / or, the distance between the first terminal and the third terminal is greater than or equal to 4.5 mm.

[0015] Optionally, in the power module described above, the distance between the first terminal and the second terminal is greater than or equal to 6.5 mm;

[0016] And / or, the distance between the first terminal and the third terminal is greater than or equal to 6.5 mm.

[0017] Optionally, in the power module described above, the distance between the second terminal connected to the upper bridge arm and the second terminal connected to the lower bridge arm is greater than or equal to 2 mm;

[0018] And / or, the distance between the second terminal connected to the upper bridge arm and the third terminal connected to the lower bridge arm is greater than or equal to 2 mm.

[0019] Optionally, in the power module described above, the distance between the second terminal and the third terminal in the signal terminals connected to either the upper or lower bridge arm is less than or equal to 4.5 mm.

[0020] Optionally, in the power module described above, the distance between the second terminal connected to the upper bridge arm and the second terminal connected to the lower bridge arm is greater than or equal to 4.5 mm;

[0021] The distance between the second terminal connected to the upper bridge arm and the third terminal connected to the lower bridge arm is greater than or equal to 4.5 mm.

[0022] Optionally, in the power module described above, the distance between the second terminal connected to the upper bridge arm and the second terminal connected to the lower bridge arm is greater than or equal to 6.5 mm;

[0023] The distance between the second terminal connected to the upper bridge arm and the third terminal connected to the lower bridge arm is greater than or equal to 6.5 mm.

[0024] Optionally, in the power module described above, the upper bridge arm and the lower bridge arm are arranged opposite to each other in the first direction;

[0025] At least some of the signal terminals are arranged along the second direction.

[0026] Optionally, in the power module described above, at least some of the signal terminals are configured as: a first terminal group and a second terminal group arranged along a first direction, each of the first terminal group and the second terminal group including at least one signal terminal, and the signal terminals in the first terminal group and the second terminal group being arranged along a second direction, which is perpendicular to the first direction.

[0027] Optionally, in the power module described above, the signal terminals connected to the first power chip in the upper bridge arm are all located in the first terminal group;

[0028] The signal terminals connected to the first power chip in the lower bridge arm are all located in the second terminal group.

[0029] Optionally, in the power module described above, in either the first terminal group or the second terminal group, the first terminal, the second terminal, and the third terminal are arranged sequentially along the second direction;

[0030] Alternatively, the third terminal, the second terminal, and the first terminal are arranged sequentially along the second direction.

[0031] Optionally, in the power module described above, in either the first terminal group or the second terminal group, the first terminal is located in the first position, one of the second terminal and the third terminal is located in the second position, and the other is located in the third position, with the first position, the second position, and the third position arranged sequentially along the second direction;

[0032] In the first terminal group or the other of the second terminal group, the first terminal is located in the first position, one of the second terminal and the third terminal is located in the second position, and the other is located in the third position, with the third position, the second position and the first position arranged sequentially along the second direction.

[0033] Optionally, in the power module described above, the first terminal group includes a first terminal connected to the upper bridge arm and a second and third terminal connected to the lower bridge arm, and the second terminal group includes a first terminal connected to the lower bridge arm and a second and third terminal connected to the upper bridge arm.

[0034] Optionally, in the power module described above, the first terminal, the second terminal, and the third terminal in the first terminal group are arranged sequentially along the second direction;

[0035] The third terminal, the second terminal, and the first terminal in the second terminal group are arranged sequentially along the second direction.

[0036] Optionally, in the above power module, both the upper bridge arm and the lower bridge arm include a first power chip;

[0037] The signal terminals include a first terminal, a second terminal, and a third terminal that are respectively connected to the first electrode, the second electrode, and the control electrode of the first power chip in the upper bridge arm;

[0038] The signal terminals also include a second terminal and a third terminal that are respectively connected to the second electrode and the control electrode of the first power chip in the lower bridge arm.

[0039] Optionally, in the power module described above, at least some of the signal terminals are configured as: a first terminal group and a second terminal group arranged along a first direction, each of the first terminal group and the second terminal group including at least one signal terminal, and the signal terminals in the first terminal group and the second terminal group are arranged along a second direction, which is perpendicular to the first direction;

[0040] The first terminal is disposed in the second terminal group, and in the first direction, the second terminal group is located between the first terminal group and the DC terminal of the power module.

[0041] Optionally, in the power module described above, both the upper bridge arm and the lower bridge arm include a second power chip; in either the upper bridge arm or the lower bridge arm, the second power chip and the first power chip are arranged opposite to each other in a first direction.

[0042] Optionally, in the power module described above, a temperature detection terminal is also provided between the upper bridge arm and the lower bridge arm, and a temperature sensing element is connected to the temperature detection terminal.

[0043] Optionally, in the above power module, the power module includes at least one of a drive control module and a generator control module; the AC terminal of the drive control module is used to connect to the drive motor, and the AC terminal of the generator control module is used to connect to the generator motor; both the drive control module and the generator control module include a converter bridge.

[0044] Optionally, in the power module described above, the drive control module includes three bridge arms arranged in sequence, which are used to connect one-to-one with the U-phase terminal, V-phase terminal and W-phase terminal in the drive motor.

[0045] Optionally, in the power module described above, the power generation control module includes three bridge arms arranged in sequence, which are used to connect one-to-one with the U-phase terminal, V-phase terminal and W-phase terminal in the generator motor;

[0046] The three bridge arms in the power generation control module share a common liner.

[0047] The power generation control module includes a first power chip, and the signal terminals include a first terminal connected to a first electrode of the first power chip; a second terminal connected to a second electrode of the first power chip; and a third terminal connected to a control electrode of the first power chip.

[0048] In the three bridge arms, the first power chip of each upper bridge arm shares the same first terminal.

[0049] Optionally, in the power module described above, the first power chip has an edge line extending along a first direction, and the vertical distance between the third terminal and the edge line extending along the first direction is no greater than 2 mm.

[0050] Optionally, in the power module described above, each bridge arm includes an upper bridge arm and a lower bridge arm.

[0051] Optionally, in the above power module, the power module includes:

[0052] Substrate assembly;

[0053] At least one power control circuit is disposed on one side surface of the substrate assembly;

[0054] The power control circuit includes: a first bridge arm chipset and a second bridge arm chipset, both of which include power chips; and signal terminals connected to the power chips.

[0055] The signal terminals are located on the surface between the first bridge arm chipset and the second bridge arm chipset.

[0056] Optionally, in the power module described above, the power chip includes a first power chip; the signal terminals include: a first terminal connected to a first electrode of the first power chip; a second terminal connected to a second electrode of the first power chip; and a third terminal connected to a control electrode of the first power chip.

[0057] Among the signal terminals connected to the same bridge arm chipset, the distance between the first terminal and the second terminal is greater than the distance between the second terminal and the third terminal, and the distance between the first terminal and the third terminal is greater than the distance between the second terminal and the third terminal.

[0058] Optionally, in the power module described above, in the same power control circuit, the first bridge arm chip group and the second bridge arm chip group are arranged opposite to each other in a first direction, and the first direction is parallel to the side surface of the substrate assembly on which the power control circuit is disposed.

[0059] There are multiple signal terminals arranged sequentially along a second direction between the first bridge arm chipset and the second bridge arm chipset; wherein, the second direction is parallel to the surface and perpendicular to the first direction.

[0060] Optionally, in the power module described above, the power control circuit includes: a first terminal group adjacent to the first bridge arm chipset and a second terminal group adjacent to the second bridge arm chipset;

[0061] Both the first terminal group and the second terminal group include multiple signal terminals arranged sequentially along the second direction.

[0062] Optionally, in the above power module, for the same power control circuit, the signal terminals connected to the power chips in the first bridge arm chipset are all located in the first terminal group, and the signal terminals connected to the power chips in the second bridge arm chipset are all located in the second terminal group.

[0063] Optionally, in the above power module, the power chip includes a first power chip;

[0064] The signal terminals in the same terminal group include: a first terminal connected to a first electrode of the first power chip; a second terminal connected to a second electrode of the first power chip; and a third terminal connected to a control electrode of the first power chip; wherein, along the second direction, the second terminal and the third terminal are located on the same side of the first terminal.

[0065] Optionally, in the power module described above, for the same terminal group, the first terminal is located in the first position, one of the second terminal and the third terminal is located in the second position, and the other is located in the third position. The first position, the second position and the third position are arranged sequentially along the second direction, or sequentially along the opposite direction of the second direction.

[0066] The distance between the first and second positions is greater than the distance between the second and third positions.

[0067] Optionally, in the power module described above, for the same terminal group, the first terminal is located in the first position, one of the second terminal and the third terminal is located in the second position, and the other is located in the third position;

[0068] For the same power control circuit, in the first terminal group and the second terminal group, the first position, the second position and the third position of one are arranged in sequence along the second direction, and the first position, the second position and the third position of the other are arranged in sequence in the opposite direction of the second direction.

[0069] Optionally, in the power module described above, in at least one power control circuit, both the first bridge arm chipset and the second bridge arm chipset are connected to signal terminals located in the first terminal group, and both are connected to signal terminals located in the second terminal group.

[0070] Optionally, in the power module described above, the power chip includes a first power chip; the signal terminals include: a first terminal connected to a first electrode of the first power chip; a second terminal connected to a second electrode of the first power chip; and a third terminal connected to a control electrode of the first power chip.

[0071] For the same power control circuit, in the first bridge arm chipset, the second and third terminals connected to the first power chip are both located in the first terminal group, and the first terminal connected to the first power chip is located in the second terminal group; in the second bridge arm chipset, the second and third terminals connected to the first power chip are both located in the second terminal group; wherein, the second terminal in the first terminal group is connected to the first electrode of the first power chip in the second bridge arm chipset.

[0072] Optionally, in the power module described above, in at least one power control circuit, two temperature detection terminals are further disposed on the surface between the first bridge arm chipset and the second bridge arm chipset, and a thermistor is connected between the two temperature detection terminals.

[0073] Optionally, in the above power module, the power chip includes a second power chip;

[0074] In the power control circuit, the second power chip in the first bridge arm chipset is positioned opposite to the second power chip in the second bridge arm chipset, and the signal terminal is located between the second power chip in the first bridge arm chipset and the second power chip in the second bridge arm chipset.

[0075] Optionally, in the above power module, the power chip includes a first power chip;

[0076] In the power control circuit, the first power chip in the first bridge arm chipset is positioned opposite to the first power chip in the second bridge arm chipset, and the signal terminal is located between the first power chip in the first bridge arm chipset and the first power chip in the second bridge arm chipset.

[0077] Optionally, in the above power module, the power module includes at least one of a drive control module and a generator control module; the AC terminal of the drive control module is used to connect to the drive motor, and the AC terminal of the generator control module is used to connect to the generator motor; both the drive control module and the generator control module include a power control circuit.

[0078] Optionally, in the power module described above, on the same side surface of the substrate assembly, the drive control module includes three power control circuits arranged in sequence, which are used to connect one-to-one with the U-phase terminal, V-phase terminal and W-phase terminal in the drive motor.

[0079] In the drive control module, the three power control circuits have the same layout structure on the substrate surface.

[0080] Optionally, in the power module described above, the power chip includes a first power chip; the signal terminals include: a first terminal connected to a first electrode of the first power chip; a second terminal connected to a second electrode of the first power chip; and a third terminal connected to a control electrode of the first power chip.

[0081] The power generation control module includes three power control circuits arranged in sequence, which are used to connect one-to-one with the U-phase terminal, V-phase terminal and W-phase terminal in the generator motor;

[0082] For the power generation control module, in the first bridge arm chip group of the three power control circuits, the first pole of the first power chip is connected to the same first terminal; in the same power control circuit, the second terminal connected to the first power chip in the first bridge arm chip group is connected to the first pole of the first power chip in the second bridge arm chip group.

[0083] Optionally, in the power module described above, the power chip includes a first power chip and a second power chip;

[0084] In the drive control module and the power generation control module, the second power chip in the first bridge arm chip group and the second power chip in the second bridge arm chip group are arranged opposite to each other, and the signal terminal is located between the second power chip in the first bridge arm chip group and the second power chip in the second bridge arm chip group.

[0085] Alternatively, in the drive control module and the power generation control module, the first power chip in the first bridge arm chipset is positioned opposite to the first power chip in the second bridge arm chipset, and the signal terminal is located between the first power chip in the first bridge arm chipset and the first power chip in the second bridge arm chipset.

[0086] A second aspect of this application provides a motor controller, including the power module described above.

[0087] A third aspect of this application provides an electronic control assembly, including the aforementioned motor controller.

[0088] The fourth aspect of this application provides a vehicle including the aforementioned electronic control assembly.

[0089] By means of the above technical solution, in this application, at least a portion of the signal terminals connected to the upper bridge arm and the lower bridge arm are disposed between the upper bridge arm and the lower bridge arm. Compared with the layout scheme of surrounding all signal terminals around the converter bridge, the space between the upper bridge arm and the lower bridge arm can be used to arrange the signal terminals, which can reduce the layout area occupied by the signal terminals, reduce the overall volume of the power module, facilitate the interconnection between the signal terminals in the power module and the external circuit, and also reduce thermal coupling. Attached Figure Description

[0090] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0091] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0092] Figure 1 This is an equivalent circuit diagram of a power module;

[0093] Figure 2 This is a schematic diagram of the layout of signal terminals in a conventional power module;

[0094] Figure 3 This is a schematic diagram illustrating the layout of signal terminals in a power module according to an embodiment of this application.

[0095] Figure 4 for Figure 3 The equivalent circuit diagram of the power module shown is shown.

[0096] Figure 5 A schematic diagram illustrating another layout of signal terminals in a power module provided in an embodiment of this application;

[0097] Figure 6 for Figure 5 The equivalent circuit diagram of the power module shown is shown.

[0098] Figure 7 A schematic diagram illustrating the layout of signal terminals in a drive control module provided in an embodiment of this application;

[0099] Figure 8 A schematic diagram illustrating the layout of signal terminals in a power generation control module provided in an embodiment of this application;

[0100] Figure 9 for Figure 8 The equivalent circuit diagram of the power generation control module shown is shown.

[0101] Figure 10 A schematic diagram of a chip layout for integrating a drive control module and a power generation control module, provided in an embodiment of this application;

[0102] Figure 11 A schematic diagram of another chip layout method for integrating the drive control module and the power generation control module as provided in an embodiment of this application;

[0103] Figure 12A schematic diagram of a chip layout for integrating a drive control module and a power generation control module as provided in an embodiment of this application;

[0104] Figure 13 A cross-sectional view of a power module provided in an embodiment of this application;

[0105] Figure 14 This is a schematic diagram of the front bonding principle between the first power chip and the second power chip in the same bridge arm;

[0106] Figure 15 This is a topology diagram of a range-extended new energy vehicle provided in an embodiment of this application.

[0107] Figure label:

[0108] 10-Substrate assembly; 101-Heat sink; 102-Ceramic substrate; 103-First copper cladding layer; 104-Second copper cladding layer; 105-Chip solder layer; 106-Substrate solder layer; 11-Power control circuit; 111-First bridge arm chipset; 112-Second bridge arm chipset; 12-Power chip; 121-First power chip; 121C-First electrode; 121E-Second electrode; 121G-Control electrode; 122-Second power chip; 122C-Positive electrode; 12 2E - Negative terminal; 13 - Signal terminal; 14 - AC terminal; 15 - Temperature detection terminal; 16 - DC terminal; 171 - First terminal group; 172 - Second terminal group; 181 - Drive control module; 182 - Power generation control module; 19 - Bonding wire; Y - First direction; X - Second direction; 21 - Electric drive unit; 22 - Drive motor; 23 - Inverter; 24 - Power battery; 25 - Generator motor controller; 26 - Generator motor; 27 - Engine; 28 - Range extender. Detailed Implementation

[0109] The embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

[0110] As described in the background section, in conventional power modules, the signal terminals in the power control circuit are located around the perimeter of the power control circuit. This results in the signal terminals occupying a large layout area in the power module, which is not convenient for the power module to interconnect with external circuits (such as PCBs).

[0111] refer to Figure 1 and Figure 2 , Figure 1 This is an equivalent circuit diagram of a power module. Figure 2 This is a schematic diagram of the layout of signal terminals in a conventional power module.

[0112] like Figure 1 and Figure 2 As shown, a power module for connecting a three-phase motor (drive motor or generator motor) requires three power control circuits 11, which are disposed on the surface of the substrate assembly 10. Each of the three power control circuits 11 has an AC terminal 14, which is used to connect to the U-phase, V-phase, and W-phase terminals of the three-phase motor, respectively. For example, the AC terminals 14 of the three power control circuits 11 are OUT1, OUT2, and OUT3, respectively. OUT1 can connect to the U-phase terminal, OUT2 can connect to the V-phase terminal, and OUT3 can connect to the W-phase terminal. Each power control circuit 11 also has two DC terminals 16, DC+ and DC-, which are used to connect to the positive and negative terminals of the power battery 24, respectively. All three power control circuits 11 are connected to the same positive and negative terminals of the power battery 24. When the power module is used to connect to a drive motor, it can provide operating power to the drive motor through the power battery 24. When used to connect to a generator motor, it can convert the AC power generated by the generator motor into DC power to charge the power battery 24.

[0113] The power control circuit 11 includes a first bridge arm chipset 111 and a second bridge arm chipset 112. Both the first bridge arm chipset 111 and the second bridge arm chipset 112 include a power chip 12 and a signal terminal 13 connected to the power chip 12. Each bridge arm chipset includes a first power chip 121 (which can be an IGBT chip or a SiC chip) and a second power chip 122 (which can be an FRD chip). In the same bridge arm chipset, the positive terminal of the second power chip 122 is connected to the first terminal of the first power chip 121, and the negative terminal of the second power chip 122 is connected to the second terminal of the first power chip 121. It should be noted that the power chip in the power module is not limited to IGBT chips and FRD chips; it can also be a silicon carbide chip. This application embodiment does not limit the type of power chip.

[0114] In this application, the power control circuit 11 can also be referred to as a bridge arm, and the power module can include multiple bridge arms; the power module is not limited to including three bridge arms. The first bridge arm chipset 111 can also be referred to as the upper bridge arm, and the second bridge arm chipset 112 can also be referred to as the lower bridge arm. The bridge arms in the power module include the upper bridge arm and the lower bridge arm.

[0115] Optionally, if the first power chip 121 is an IGBT chip, the first electrode can be the collector of the IGBT chip, the second electrode can be the emitter of the IGBT chip, and the control electrode can be the gate of the IGBT chip.

[0116] Figure 2In the illustrated configuration, within the same power control circuit 11, the first power chip 121 in each of the two bridge arm chipsets needs to be connected to three signal terminals 13. These three signal terminals 13 include: a first terminal C, used to connect to the first electrode of the IGBT chip; a second terminal E, used to connect to the second electrode of the IGBT chip; and a third terminal G, used to connect to the control electrode of the IGBT chip. Furthermore, each power control circuit 11 also requires two additional signal terminals 13 as temperature detection terminals 15, which are used to connect to a thermistor. Therefore, each power control circuit 11 requires a total of 8 signal terminals 13, of which six are the two first terminals C, two second terminals E, and two third terminals G connected to the IGBT chip, and the other two are the temperature detection terminals 15. Therefore, the three power control circuits 11 connecting to the three-phase terminals of the motor require a total of 24 signal terminals.

[0117] for Figure 2 As shown, in the three power control circuits 11, the first terminals C connected to the first bridge arm chipset 111 are represented by C1, C3, and C5, respectively; the second terminals E connected to the first bridge arm chipset 111 are represented by E1, E3, and E5, respectively; and the third terminals G connected to the first bridge arm chipset 111 are represented by G1, G3, and G5, respectively. Similarly, the first terminals C connected to the second bridge arm chipset 112 are represented by C2, C4, and C6, respectively; the second terminals E connected to the first bridge arm chipset 111 are represented by E2, E4, and E6, respectively; and the third terminals G connected to the first bridge arm chipset 111 are represented by G2, G4, and G6, respectively. In the three power control circuits 11, the temperature detection terminals 15 are represented by NTC1, NTC2, and NTC3, respectively.

[0118] For a dual-control scheme with a drive motor and a generator motor, each motor requires a separate set of control mechanisms, such as... Figure 2 The power module shown includes both a drive control module and a power generation control module, requiring a total of 48 signal terminals. For control modules connected to the same motor, the 8 signal terminals 13 of the power control circuit 11, if... Figure 2 As shown, the signal terminals 13 occupy a large layout area around the power control circuit 11. When the power module is interconnected with the printed circuit board (PCB) above it, the connection positions of each signal terminal 13 on the PCB will occupy a large layout space, resulting in a large PCB design area and requiring a large overall application design.

[0119] In addition, since the signal terminal 13 occupies a large area in the power module, a large amount of clearance must be made for the signal terminal 13 when the power module is selectively soldered.

[0120] Furthermore, when the power module is connected and fixed to the PCB, the PCB needs to be slotted to release the stress between the two. This means that the overall fan-out design of the PCB needs to consider avoiding the slot, which greatly restricts the design of the PCB and increases its complexity.

[0121] To address the aforementioned problems, this application provides a power module, comprising:

[0122] The converter bridge includes at least one bridge arm, and the at least one bridge arm includes an upper bridge arm and a lower bridge arm, both of which are connected to signal terminals; at least some of the signal terminals are located between the upper bridge arm and the lower bridge arm.

[0123] In the power module provided in this application embodiment, at least some of the signal terminals connected to the upper bridge arm and the lower bridge arm are disposed between the upper bridge arm and the lower bridge arm. Compared with the layout scheme that surrounds all signal terminals around the converter bridge, the space between the upper bridge arm and the lower bridge arm can be used to arrange the signal terminals, which can reduce the layout area occupied by the signal terminals, reduce the design size of the PCB board, and facilitate the interconnection between the signal terminals in the power module and the external circuit.

[0124] Optionally, based on the above method, in one embodiment the power module includes:

[0125] Substrate assembly;

[0126] At least one power control circuit is disposed on one side surface of the substrate assembly;

[0127] The power control circuit includes: a first bridge arm chipset and a second bridge arm chipset, both of which include power chips; and signal terminals connected to the power chips.

[0128] The signal terminals are located on the surface between the first bridge arm chipset and the second bridge arm chipset.

[0129] In the power module provided in this application embodiment, the signal terminals of the power module are placed on the surface of the substrate assembly between the two bridge arm chipsets. Compared with the traditional layout scheme that surrounds the power control circuit with signal terminals, the technical solution of this application places the signal terminals in the area between the two bridge arm chipsets, which can reduce the layout area occupied by the signal terminals. The signal terminals in the power module can be centrally arranged, so that the PCB above the power module only needs a small circuit board area for designing the connection position of the signal terminals, which facilitates the circuit interconnection between the power module and the external circuit.

[0130] In addition, since the signal terminals are concentrated on the surface of the substrate assembly between the two bridge arm chipsets of the power control circuit, the avoidance design for the signal terminals when the power module is selectively soldered only needs to target the surface area of ​​the substrate assembly between the two bridge arm chipsets, which reduces the difficulty of the avoidance design when selectively soldering; moreover, the groove design in the PCB used to release stress also only needs to target the surface area of ​​the substrate assembly between the two bridge arm chipsets, which reduces the complexity of PCB design.

[0131] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0132] refer to Figure 3 and Figure 4 , Figure 3 This is a schematic diagram illustrating the layout of signal terminals in a power module according to an embodiment of this application. Figure 4 for Figure 3 The equivalent circuit diagram of the power module shown is illustrated. The power module includes a converter bridge; the converter bridge includes at least one bridge arm, and the at least one bridge arm includes an upper bridge arm and a lower bridge arm, both of which are connected to signal terminals 13; at least a portion of the signal terminals 13 are located between the upper and lower bridge arms. Each bridge arm includes a power control circuit 11. The upper bridge arm includes a first bridge arm chipset 111, and the lower bridge arm includes a second bridge arm chipset 112.

[0133] In the power module, at least some of the signal terminals 13 connected to the upper and lower bridge arms are disposed between the upper and lower bridge arms. Compared with the layout scheme that surrounds all the signal terminals 13 around the converter bridge, the space between the upper and lower bridge arms can be used to arrange the signal terminals 13, which can reduce the layout area occupied by the signal terminals 13, reduce the design size of the PCB board, and facilitate the interconnection between the signal terminals 13 and the external circuit in the power module.

[0134] For the same converter bridge, all signal terminals 13 connected to the upper and lower bridge arms can be located between the upper and lower bridge arms, or some signal terminals 13 connected to the upper and lower bridge arms can be located between the upper and lower bridge arms.

[0135] Optionally, when the power module includes multiple bridge arms, each bridge arm includes an upper bridge arm and a lower bridge arm.

[0136] In one embodiment, both the upper and lower bridge arms include a first power chip 121; the signal terminal 13 includes: a first terminal C connected to a first electrode of the first power chip 121; a second terminal E connected to a second electrode of the first power chip 121; and a third terminal G connected to a control electrode of the first power chip 121; in the signal terminal 13 connected to either the upper or lower bridge arm, the distance between the first terminal C and the second terminal E is greater than or equal to the distance between the second terminal E and the third terminal G, and the distance between the first terminal C and the third terminal G is greater than or equal to the distance between the second terminal E and the third terminal G.

[0137] Figure 3 and Figure 4 The diagram illustrates a converter bridge consisting of one arm. The upper and lower arms are connected to a first terminal C, a second terminal E, and a third terminal G, respectively. The first terminal C, second terminal E, and third terminal G connected to the upper arm are denoted as C1, E1, and G1, respectively, while the first terminal C, second terminal E, and third terminal G connected to the lower arm are denoted as C2, E2, and G2, respectively.

[0138] In the power module, setting the distance between the first terminal C and the second terminal E to be no less than the distance between the second terminal E and the third terminal G, and the distance between the first terminal C and the third terminal G to be no less than the distance between the second terminal E and the third terminal G, can avoid signal interference problems caused by the small distance between the first terminal C and the second terminal E and / or the small distance between the first terminal C and the third terminal G.

[0139] Optionally, the distance between the first terminal C and the second terminal E is greater than the distance between the second terminal E and the third terminal G, and / or the distance between the first terminal C and the third terminal G is greater than the distance between the second terminal E and the third terminal G. This can prevent the first terminal C from causing signal interference to the second terminal E and / or the third terminal G.

[0140] Based on other implementation methods, in one approach, the distance between the first terminal C and the second terminal E is greater than or equal to 2 mm. Meeting this distance condition avoids short circuits caused by the close proximity of the first terminal C and the second terminal E. And / or, the distance between the first terminal C and the third terminal G is greater than or equal to 2 mm. Meeting this distance condition also avoids short circuits caused by the close proximity of the first terminal C and the third terminal G, and also avoids interference from the high-voltage terminal to the low-voltage terminal. In this approach, the voltage of the busbar connected to the two terminals of the power battery 24 can reach 400V, thus preventing signal interference from the first terminal C to the second terminal E and the third terminal G when the busbar voltage reaches 400V. If the distance is greater than 5 mm, the voltage of the busbar connected to the two terminals of the power battery 24 can reach 1000V, thus preventing signal interference from the first terminal C to the second terminal E and the third terminal G when the busbar voltage reaches 1000V.

[0141] In this embodiment, the distance between the first terminal C and the second terminal E, as well as between the first terminal C and the third terminal G, is greater than 2mm. This avoids the problem of insufficient insulation withstand voltage caused by the excessively small distance between the first terminal C and the second terminal E, as well as between the first terminal C and the third terminal G.

[0142] Compared to the second terminal E and the third terminal G, the first terminal C has a higher voltage and is considered a high-voltage terminal, while the second terminal E and the third terminal G are low-voltage terminals. If the high-voltage terminal and the low-voltage terminal are too close, the high-voltage terminal will interfere with the signal of the low-voltage terminal. To solve this problem, the distance between the first terminal C and the second terminal E should be greater than or equal to 4.5 mm. Meeting this distance condition can prevent the first terminal C from interfering with the signal of the second terminal E; and / or, the distance between the first terminal C and the third terminal G should be greater than or equal to 4.5 mm. Meeting this distance condition can prevent the first terminal C from interfering with the signal of the third terminal G.

[0143] The power module requires soldering to interconnect signal terminal 13 with external circuitry. To reduce the difficulty of soldering signal terminal 13 with external circuitry in the power module, the distance between the first terminal C and the second terminal E is greater than or equal to 6.5 mm. Meeting this distance condition reduces the difficulty of soldering the first terminal C and the second terminal E with external circuitry; and / or, the distance between the first terminal C and the third terminal G is greater than or equal to 6.5 mm. Meeting this distance condition reduces the difficulty of soldering the first terminal C and the third terminal G with external circuitry.

[0144] In the power module, a filter capacitor needs to be connected between the second signal terminal E and the third signal terminal G connected to the same first power chip 121. Optionally, the filter capacitor can be located in an external circuit (such as a PCB board) to which the power module is connected. The filtering effect of the filter capacitor is related to the current path. If the distance between the second terminal E and the third signal terminal G is large, it will affect the filtering effect of the filter capacitor. Based on this, in the signal terminals 13 connected to either the upper or lower bridge arm, the distance between the second terminal E and the third signal terminal G is less than or equal to 4.5 mm. In this configuration, the distance between the second terminal E and the third terminal G of the signal terminals 13 connected to the upper bridge arm is less than or equal to 4.5 mm, so as to avoid the large distance between the second terminal E and the third terminal G of the signal terminals 13 connected to the upper bridge arm affecting the filtering effect of the filter capacitor connected between them. And / or, the distance between the second terminal E and the third terminal G of the signal terminals 13 connected to the lower bridge arm is less than or equal to 4.5 mm, so as to avoid the large distance between the second terminal E and the third terminal G of the signal terminals 13 connected to the lower bridge arm affecting the filtering effect of the filter capacitor connected between them.

[0145] In the same bridge arm, when the upper and lower bridge arms are connected to separate sets of first terminals C, second terminals E, and third terminals G, respectively, in the equivalent circuit, both the second terminal E connected to the upper bridge arm and the first terminal C connected to the lower bridge arm are connected to the AC terminal 14 of the converter bridge, and they are approximately at the same potential. For example... Figure 4 As shown, E1 and C2 are connected to the AC terminal 14 of the converter bridge. E1 and C2 are at the same potential, making E1 equivalent to a high-potential terminal. To avoid signal interference from E1 to E2 and G2, the distance between the second terminal E connected to the upper bridge arm and the second terminal E connected to the lower bridge arm is greater than or equal to 2mm, that is, the distance between E1 and E2 is not less than 2mm. This can avoid short circuit problems caused by E1 and E2 being too close, and can also avoid interference from E1 to E2; and / or, the distance between the second terminal E connected to the upper bridge arm and the third terminal G connected to the lower bridge arm is greater than or equal to 2mm, that is, the distance between E1 and G2 is not less than 2mm. This can avoid short circuit problems caused by E1 and G2 being too close, and can also avoid interference from E1 to G2.

[0146] When the distance between E1 and E2 is not less than 2mm, the voltage of the bus connected to the two terminals of the power battery 24 can reach 400V, ensuring that E1 will not interfere with E2 when the bus voltage reaches 400V. If the distance is greater than 5mm, the voltage of the bus connected to the two terminals of the power battery 24 can reach 1000V, ensuring that E1 will not interfere with E2 when the bus voltage reaches 1000V.

[0147] When the distance between E1 and G2 is not less than 2mm, the voltage of the bus connected to the two terminals of the power battery 24 can reach 400V, ensuring that E1 will not interfere with G2 when the bus voltage reaches 400V. If the distance is greater than 5mm, the voltage of the bus connected to the two terminals of the power battery 24 can reach 1000V, ensuring that E1 will not interfere with G2 when the bus voltage reaches 1000V.

[0148] The distance between the second terminal E connected to the upper bridge arm and the second terminal E connected to the lower bridge arm is greater than or equal to 4.5 mm; and / or, the distance between the second terminal E connected to the upper bridge arm and the third terminal G connected to the lower bridge arm is greater than or equal to 4.5 mm, thus, if Figure 3 As shown, the distance between E1 and E2 and the distance between E1 and G2 are both no less than 4.5mm. The large distance between E1 and E2 and between E1 and G2 can effectively avoid signal interference from the high-voltage terminals to the low-voltage terminals.

[0149] Furthermore, the distance between the second terminal E connected to the upper bridge arm and the second terminal E connected to the lower bridge arm is greater than or equal to 6.5 mm; and / or, the distance between the second terminal E connected to the upper bridge arm and the third terminal G connected to the lower bridge arm is greater than or equal to 6.5 mm. Thus, as... Figure 3 As shown, the distance between E1 and E2 and the distance between E1 and G2 are both not less than 6.5mm. While surface E1 causes signal interference to E2 and G2, it also allows for a large distance between E1 and E2 and between E1 and G2, so that E1, E2 and G2 can be connected to external circuits by soldering.

[0150] Optionally, such as Figure 3 As shown, the upper and lower bridge arms are arranged opposite each other in the first direction Y; at least some of the signal terminals 13 are arranged along the second direction X. The first direction Y and the second direction X are different, and both can be parallel to the plane where the power module is located. The first direction Y and the second direction X can be coplanar and intersect.

[0151] In the power module, the upper bridge arm and the lower bridge arm are arranged opposite each other in the first direction Y, and at least some of the signal terminals 13 are arranged along the second direction X. This not only allows the space between the upper bridge arm and the lower bridge arm to be used to arrange the signal terminals 13, so that at least some of the signal terminals 13 are arranged along the second direction X between the upper bridge arm and the lower bridge arm, but also avoids the signal terminals 13 occupying a large space in the first direction Y between the upper bridge arm and the lower bridge arm, so as to avoid the converter bridge having a large size in the first direction Y.

[0152] In one approach, such as Figure 3As shown, at least some of the signal terminals 13 are configured as: a first terminal group 171 and a second terminal group 172 arranged along a first direction Y. Each of the first terminal group 171 and the second terminal group 172 includes at least one signal terminal 13. The signal terminals 13 in both the first terminal group 171 and the second terminal group 172 are arranged along a second direction X, which is perpendicular to the first direction Y. This method divides the signal terminals 13 between the upper and lower bridge arms into two opposing terminal groups in the first direction Y, and arranges the signal terminals 13 within the same terminal group sequentially along the second direction X. This avoids the signal terminals 13 between the upper and lower bridge arms occupying a large space in the first direction Y, thus preventing the converter bridge from having a large size in the first direction Y.

[0153] Optionally, such as Figure 3 As shown, the signal terminals 13 connected to the first power chip 121 in the upper bridge arm are all located in the first terminal group 171; the signal terminals 13 connected to the first power chip 121 in the lower bridge arm are all located in the second terminal group 172. In this configuration, the upper and lower bridge arms are each connected to a separate set of first terminals C, second terminals E, and third terminals G, which enables more accurate current control in the converter bridge.

[0154] In one embodiment, in either the first terminal group 171 or the second terminal group 172, the first terminal C, the second terminal E, and the third terminal G are arranged sequentially along the second direction X; or, the third terminal G, the second terminal E, and the first terminal C are arranged sequentially along the second direction X. Figure 3 In the first terminal group 171, the first terminal C, the second terminal E, and the third terminal G are arranged sequentially along the second direction X. In the second terminal group 172, the third terminal G, the second terminal E, and the first terminal C are arranged sequentially along the second direction X. In this configuration, the first terminal C connected to the upper arm and the first terminal C connected to the lower arm of the same converter bridge are at a large distance, i.e., the distance between C1 and C2 is large, in order to reduce coupling interference between the two high-voltage terminals.

[0155] In one embodiment, in either the first terminal group 171 or the second terminal group 172, the first terminal C is located in the first position, one of the second terminal E and the third terminal G is located in the second position, and the other is located in the third position, with the first, second, and third positions arranged sequentially along the second direction X. In the other embodiment, the first terminal C is located in the first position, one of the second terminal E and the third terminal G is located in the second position, and the other is located in the third position, with the third, second, and first positions arranged sequentially along the second direction X. In this embodiment, for the same converter bridge, the first, second, and third positions corresponding to one of the upper and lower bridge arms are arranged sequentially along the second direction X, and the third, second, and first positions corresponding to the other are arranged sequentially along the second direction X. This allows for a larger distance between the first terminal C connected to the upper bridge arm and the first terminal C connected to the lower bridge arm, i.e., a larger distance between C1 and C2, to reduce coupling interference between the two high-voltage terminals. The positions of the second terminal E and the third terminal G connected to the upper and lower bridge arms can be interchanged. In this method, when C1 and C2 are far apart, the positions of E1 and G2 can be interchanged, and the positions of E2 and G2 can be interchanged, which facilitates the layout of the signal terminal 13 between the upper and lower bridge arms and the soldering with external circuits.

[0156] In one embodiment, some of the signal terminals 13 connected to the upper bridge arm can be located in the first terminal group 171, and another part can be located in the second terminal group 172. Similarly, some of the signal terminals 13 connected to the lower bridge arm can be located in the first terminal group 171, and another part can be located in the second terminal group 172. For example, the first terminal group 171 includes the first terminal C connected to the upper bridge arm and the second terminal E and the third terminal G connected to the lower bridge arm, i.e., the first terminal group 171 includes C1, E2, and G2. The second terminal group 172 includes the first terminal C connected to the lower bridge arm and the second terminal E and the third terminal G connected to the upper bridge arm, i.e., the second terminal group 172 includes C2, E1, and G1. This method allows multiple signal terminals 13 connected to the upper bridge arm and multiple signal terminals 13 connected to the lower bridge arm in the same converter bridge to be staggered and arranged in two signal terminal groups. This makes it easier to arrange high-voltage terminals and low-voltage terminals, makes it easier to increase the distance between high-voltage terminals and low-voltage terminals, and can better reduce signal interference from high-voltage terminals to low-voltage terminals.

[0157] When multiple signal terminals 13 connected to the upper bridge arm and multiple signal terminals 13 connected to the lower bridge arm of the same converter bridge are staggered in two signal terminal groups, the first terminal C, the second terminal E, and the third terminal G in the first terminal group 171 are arranged sequentially along the second direction X. For example, C1, E2, and G2 are all located in the first terminal group 171, and C1, E2, and G2 are arranged sequentially along the second direction X. The third terminal G, the second terminal E, and the first terminal C in the second terminal group 172 are arranged sequentially along the second direction X. For example, C2, E1, and G1 are all located in the second terminal group 172, and G1, E1, and C2 are arranged sequentially along the second direction X.

[0158] In one approach, such as Figure 5 and Figure 6 As shown, both the upper and lower bridge arms include a first power chip 121; the signal terminal 13 includes a first terminal C, a second terminal E, and a third terminal G that are respectively connected to the first electrode, the second electrode, and the control electrode of the first power chip 121 in the upper bridge arm; the signal terminal 13 also includes a second terminal E and a third terminal G that are respectively connected to the second electrode and the control electrode of the first power chip 121 in the lower bridge arm. Figure 5 and Figure 6 In this configuration, the first terminal C, the second terminal E, and the third terminal G connected to the upper bridge arm are denoted as C1, E1, and G1, respectively, while the first terminal C, the second terminal E, and the third terminal G connected to the lower bridge arm are denoted as C2, E2, and G2, respectively. In this configuration, the first terminal C connected to the lower bridge arm can be removed, and the second terminal E connected to the upper bridge arm can be reused as the first terminal C connected to the lower bridge arm, thereby reducing the number of signal terminals 13. For example... Figure 6 As shown, the second electrode of the first power chip 121 in the upper bridge arm and the first electrode of the first power chip 121 in the lower bridge arm are connected to the same AC terminal 14. Since they are at the same potential, the second terminal E connected to the upper bridge arm can be reused as the first terminal C connected to the lower bridge arm, that is, E1 is reused as C2.

[0159] Optionally, such as Figure 5 As shown, at least some of the signal terminals 13 are configured as: a first terminal group 171 and a second terminal group 172 arranged along a first direction Y, each including at least one signal terminal 13, and the signal terminals 13 in both the first terminal group 171 and the second terminal group 172 arranged along a second direction X, which is perpendicular to the first direction Y; a first terminal C is disposed in the second terminal group 172, and in the first direction Y, the second terminal group 172 is located between the first terminal group 171 and the DC terminal 16 of the power module. In this configuration, the distance between the first terminal C connected to the upper bridge arm and the DC terminal 16 can be reduced, facilitating the circuit interconnection between the first terminal C connected to the upper bridge arm and the DC terminal 16.

[0160] Based on other implementations, in one embodiment, both the upper bridge arm and the lower bridge arm include a second power chip 122; in either the upper bridge arm or the lower bridge arm, the second power chip 122 and the first power chip 121 are disposed opposite each other in the first direction Y.

[0161] In addition to other embodiments, in one embodiment, a temperature detection terminal 15 is provided between the upper bridge arm and the lower bridge arm, and the temperature detection terminal 15 is connected to a temperature measuring element.

[0162] In one embodiment, based on other implementations, the power module includes at least one of a drive control module 181 and a power generation control module 182; the AC terminal of the drive control module 181 is used to connect to the drive motor 22, and the AC terminal of the power generation control module 182 is used to connect to the generator motor 26; both the drive control module 181 and the power generation control module 182 include the aforementioned converter bridge.

[0163] Optionally, the drive control module 181 includes three bridge arms arranged in sequence for corresponding connection with the U-phase terminal, V-phase terminal and W-phase terminal in the drive motor.

[0164] Optionally, such as Figure 8 As shown, the power generation control module 182 includes three bridge arms arranged in sequence, which are used to connect one-to-one with the U-phase terminal, V-phase terminal, and W-phase terminal in the generator 26. The three bridge arms in the power generation control module 182 share a common substrate, which can be a multi-layer structure, such as including the substrate assembly 10 mentioned below. The power generation control module 182 includes a first power chip 121, and the signal terminal 13 includes a first terminal C connected to the first electrode of the first power chip 121; a second terminal E connected to the second electrode of the first power chip 121; and a third terminal G connected to the control electrode of the first power chip 121. In the three bridge arms, the first power chips 121 of each upper bridge arm share the same first terminal C. In this way, the bridge arms in the power generation control module 182 share the same substrate, which can reduce the size of the power generation control module 182.

[0165] The equivalent circuit of the power generation control module 182 is as follows: Figure 9 As shown, since the first pole of the first power chip 121 in the three bridge arms is connected to the same DC terminal 16, i.e., they are at the same potential, if each bridge arm in the power generation control module 182 shares the same substrate, the three can be connected to the same first terminal C on the same substrate, thereby reducing the number of first terminals C by two. Figure 8 and Figure 9 In the power generation control module 182, the first pole of the first power chip 121 of the three upper bridge arms is connected to C1'.

[0166] Based on other embodiments, in one approach, the first power chip 121 has an edge line extending along a first direction Y, and the vertical distance between the third terminal G and the edge line extending along the first direction Y is no greater than 2mm, that is, the distance between the third terminal G and the edge line in the second direction X is no greater than 2mm. Figure 14 As shown, the control electrode 121G of the first power chip 121 is located on the upper surface and close to the left edge line (i.e. the edge line extending along the first direction Y). The vertical distance between the third terminal G and the edge line extending along the first direction Y is set to be no more than 2mm, so that the third terminal G and the control electrode 121G are closer, so as to facilitate the interconnection of their circuits.

[0167] by Figure 3 Taking the illustrated example, the upper bridge arm and / or lower bridge arm includes two first power chips 121 facing each other in the second direction, and these two first power chips 121 are connected in parallel, that is, the first electrodes of the two first power chips 121 are connected, and their second electrodes are connected. Therefore, the control electrodes of the two first power chips 121 are connected to the same third terminal G. At this time, for the two first power chips 121 facing each other in the second direction in the upper or lower bridge arm, their control electrodes can be facing each other in the second direction X. At this time, if the vertical distance between the third terminal G and the edge line extending along the first direction Y is not greater than 2mm, the third terminal G can be located in the gap area between the left first power chip 121 and the right first power chip 121, and the two first power chips 121 are respectively interconnected with the third terminal G. Figure 3 As shown, in the upper bridge arm, G1 is located in the gap region between the two first power chips 121 of the upper bridge arm, and in the lower bridge arm, G2 is located in the gap region between the two first power chips 121 of the lower bridge arm.

[0168] In one implementation, such as Figure 3 and Figure 4 As shown, the power module includes: a substrate assembly 10; and at least one power control circuit 11 disposed on one side surface of the substrate assembly 10.

[0169] The power control circuit 11 includes: a first bridge arm chipset 111 and a second bridge arm chipset 112, both of which include a power chip 12; and a signal terminal 13 connected to the power chip 12. The signal terminal 13 is located on the surface of a substrate assembly between the first bridge arm chipset 111 and the second bridge arm chipset 112. The signal terminal 13 and the power chip 12 are located on the same side surface of the substrate assembly 10. The power control circuit 11 has two DC terminals 16, DC+ and DC-, respectively, for connecting to the positive and negative terminals of the power battery 24.

[0170] In the power module provided in this application embodiment, the signal terminals 13 of the power module are disposed on the surface of the substrate assembly 10 between the two bridge arm chipsets. Compared with the traditional layout scheme in which the signal terminals 13 surround the power control circuit, the technical solution of this application places the signal terminals 13 in the area between the two bridge arm chipsets, which can reduce the layout area occupied by the signal terminals 13. The signal terminals 13 in the power module can be centrally disposed, so that the PCB above the power module only needs a small circuit board area for designing the connection position of the signal terminals 13, which facilitates the circuit interconnection between the power module and the external circuit.

[0171] In addition, since the signal terminals 13 are concentrated on the surface of the substrate assembly 10 between the two bridge arm chipsets of the power control circuit, the avoidance design of the signal terminals 13 when the power module is selectively soldered only needs to target the surface area of ​​the substrate assembly between the two bridge arm chipsets, which reduces the difficulty of the avoidance design when selectively soldering; moreover, the groove design in the PCB used to release stress also only needs to target the surface area of ​​the substrate assembly between the two bridge arm chipsets, which reduces the complexity of the PCB design.

[0172] The power chip 12 includes a first power chip 121; the signal terminal 13 includes: a first terminal connected to a first electrode of the first power chip 121; a second terminal connected to a second electrode of the first power chip 121; and a third terminal connected to a control electrode of the first power chip. In the power control circuit 11, the voltage of the first terminal is higher than the voltage of the second and third terminals, therefore the first terminal is a high-voltage terminal, and the second and third terminals are low-voltage terminals.

[0173] If the high-voltage and low-voltage terminals are too close together, interference from the high-voltage terminals to the low-voltage terminals will occur. To solve this problem, among the signal terminals 13 connected to the same bridge arm chipset, the distance between the first and second terminals is greater than the distance between the second and third terminals, and the distance between the first and third terminals is greater than the distance between the second and third terminals. This arrangement ensures that the high-voltage signal terminals and low-voltage signal terminals are at greater distances among the three signal terminals 13 connected to the same bridge arm chipset, thereby reducing interference from the high-voltage signal terminals to the low-voltage signal terminals and improving the reliability and stability of the power control circuit 11.

[0174] Figure 3 and Figure 4In the first bridge arm chipset 111, the first, second, and third terminals connected are C1, E1, and G1, respectively. Similarly, the first, second, and third terminals connected to the second bridge arm chipset 112 are C2, E2, and G2, respectively. For the three signal terminals 13 connected to the first bridge arm chipset 111, the distance between C1 and E1 is greater than the distance between E1 and G1, and the distance between C1 and G1 is also greater than the distance between E1 and G1. For the three signal terminals 13 connected to the second bridge arm chipset 112, the distance between C2 and E2 is greater than the distance between E2 and G2, and the distance between C2 and G2 is also greater than the distance between E2 and G2. This ensures that the high-voltage signal terminals and low-voltage signal terminals have a greater distance between each other among the three signal terminals 13 connected to the same bridge arm chipset.

[0175] In one embodiment of this application, such as Figure 3 As shown, in the same power control circuit 11, the first bridge arm chip group 111 and the second bridge arm chip group 112 are arranged opposite to each other in the first direction Y, which is parallel to the surface of the substrate assembly 10 on which the power control circuit 11 is disposed; there are multiple signal terminals 13 arranged sequentially along the second direction X between the first bridge arm chip group 111 and the second bridge arm chip group 112; wherein, the second direction X is parallel to the surface and perpendicular to the first direction Y.

[0176] Because the power control circuit 11 includes multiple signal terminals 13 arranged along the second direction X, the layout space occupied by the signal terminals 13 in the first direction Y can be reduced, and the size of the power module in the first direction Y can be reduced. Additionally, as... Figure 3 As shown, the power module includes power chips 12 arranged adjacent to each other in the second direction X. Therefore, it is provided with a plurality of signal terminals 13 arranged in the second direction X, so that the signal terminals 13 can be adapted to the circuit interconnection requirements of the power chips 12 arranged adjacent to each other in the second direction X, and the circuit interconnection between the signal terminals 13 and the power chips 12 can be facilitated.

[0177] In one embodiment of this application, such as Figure 3As shown, in the first direction Y, a power control circuit 11 can be configured including: a first terminal group 171 adjacent to the first bridge arm chipset 111 and a second terminal group 172 adjacent to the second bridge arm chipset 112; both the first terminal group 171 and the second terminal group 172 include a plurality of signal terminals 13 arranged sequentially along the second direction X. This method divides the signal terminals 13 in the power control circuit 11 into two groups, each group including a plurality of signal terminals 13 arranged sequentially along the second direction X. This effectively reduces the layout space occupied by the signal terminals 13 in the first direction Y, and can reduce the size of the power module in the first direction Y. It also facilitates the electrical connection between the signal terminals 13 in the first terminal group 171 and the second terminal group 172 and the power chip 12, and facilitates the circuit interconnection between the signal terminals 13 and the power chip 12.

[0178] Optionally, such as Figure 3 As shown, at least one power control circuit 11 is a first power control circuit. For the first power control circuit, the signal terminals 13 connected to the power chips 12 in the first bridge arm chipset 111 are all located in the first terminal group 171, and the signal terminals 13 connected to the power chips 12 in the second bridge arm chipset 112 are all located in the second terminal group 172. In this configuration, C1, E1, and G1 are all located in the first terminal group 171, and C2, E2, and G2 are all located in the second terminal group 172. Thus, the first bridge arm chipset 111 and its connected signal terminals 13 are arranged adjacent to each other in the first direction Y, and the second bridge arm chipset 112 and its connected signal terminals 13 are arranged adjacent to each other in the first direction Y, facilitating the circuit interconnection between the power chips 12 and the signal terminals 13 in the bridge arm chipset.

[0179] When the power module includes a drive control module, the multiple power control circuits 11 in the drive control module can all be as follows: Figure 3 and Figure 4 The first power control circuit shown has the first terminal, second terminal and third terminal connected to the first bridge arm chip group 111 in the first terminal group 171, and the first terminal, second terminal and third terminal connected to the second bridge arm chip group 112 in the second terminal group 172. The two bridge arm chip groups can each have a separate first terminal, a separate second terminal and a separate third terminal, which can realize accurate and fine control of the power chip in each first power control circuit.

[0180] In one embodiment of this application, the signal terminals in the same terminal group include: a first terminal connected to the first pole of the first power chip 121; a second terminal connected to the second pole of the first power chip 121; and a third terminal connected to the control pole of the first power chip 121. That is, the first terminal group 171 includes the first terminal, the second terminal and the third terminal, and the second terminal group 172 includes the first terminal, the second terminal and the third terminal.

[0181] In the same terminal group, along the second direction X, the second terminal and the third terminal are located on the same side of the first terminal. For example... Figure 3 As shown, along the second direction X, in the first bridge arm chipset 111, E1 and G1 are located on the same side of C1; in the second bridge arm chipset 112, E2 and G2 are located on the same side of C2.

[0182] For the first signal terminal, second signal terminal and third signal terminal connected to the same bridge arm chipset, in the second direction X, the second terminal and the third terminal are located on the same side of the first terminal, which facilitates the layout of the distance between the three and makes it easier to have a larger distance between the high voltage terminal and the low voltage terminal to avoid interference between the high voltage terminal and the low voltage terminal.

[0183] In one embodiment, for the same terminal group, a first terminal is located in a first position, one of a second terminal and a third terminal is located in a second position, and the other is located in a third position. The first, second, and third positions are arranged sequentially along a second direction X, or sequentially in the opposite direction of the second direction X; wherein the distance between the first and second positions is greater than the distance between the second and third positions. Thus, within the same signal terminal group, the distance between the first and third terminals can be greater than the distance between the second and third terminals, and the distance between the first and second terminals can be greater than the distance between the second and third terminals. Figure 3 As shown, along the second direction X, in the first bridge arm chip group 111, C1, E1, and G1 are arranged sequentially along the second direction X; in the second bridge arm chip group 112, C2, E2, and G2 are arranged sequentially in the opposite direction of the second direction X. This method not only allows for a larger distance between the high-voltage terminals and the low-voltage terminals to avoid interference between the high-voltage terminals and the low-voltage terminals, but also allows the first terminals connected to the first bridge arm chip group 111 and the first terminals connected to the second bridge arm chip group 112 to be arranged diagonally opposite each other in the target area. That is, C1 and C2 are diagonally opposite each other on the diagonal of the area between the two bridge arm chip groups (the target area), with a large distance between them, which can effectively reduce the interference coupling between C1 and C2.

[0184] The target area is the substrate assembly surface area between the first bridge arm chip group 111 and the second bridge arm chip group 112. The first terminal connected to the first bridge arm chip group 111 and the first terminal connected to the second bridge arm chip group 112 are arranged diagonally opposite each other in the target area. This allows for a larger distance between the first terminals connected to the two bridge arm chip groups, preventing superimposed coupling interference between the two high-voltage terminals and the low-voltage terminals, thereby further reducing interference from the high-voltage terminals to the low-voltage terminals.

[0185] For the same power control circuit 11, in the first terminal group 171 and the second terminal group 172, the first position, second position, and third position of one are arranged sequentially along the second direction X, and the first position, second position, and third position of the other are arranged sequentially in the opposite direction of the second direction X. For example... Figure 3 As shown, along the second direction X, in the first bridge arm chip group 111, C1, E1, and G1 are arranged sequentially along the second direction X; in the second bridge arm chip group 112, C2, E2, and G2 are arranged sequentially in the opposite direction of the second direction X. This arrangement allows the first terminals connected to the first bridge arm chip group 111 and the first terminals connected to the second bridge arm chip group 112 to be positioned diagonally opposite each other in the target area. This provides a larger distance between the first terminals connected to the two bridge arm chip groups, preventing superimposed coupling interference between the two high-voltage terminals and the low-voltage terminals, thereby further reducing interference from the high-voltage terminals to the low-voltage terminals.

[0186] It should be noted that when the first, second, and third terminals connected to the first bridge arm chip group 111 are all located in the first terminal group 171, and the first, second, and third terminals connected to the second bridge arm chip group 112 are all located in the second terminal group 172, the arrangement of the first, second, and third terminals in the same terminal group is not limited to... Figure 3 As shown. For example, it can be... Figure 3 The positions of the second and third terminals in the same terminal group can be interchanged, that is, the positions of E1 and G1 can be interchanged, and the positions of E2 and G2 can be interchanged; or, the three signal terminals 13 connected to the IGBT chip in the first bridge arm chip group 111 can be arranged in the second direction X as G1, E1, C1, and the three signal terminals 13 connected to the IGBT chip in the second bridge arm chip group 112 can be arranged in the opposite direction X as G2, E2, C2; or, the three signal terminals 13 connected to the IGBT chip in the first bridge arm chip group 111 can be arranged in the second direction X as E1, G1, C1, and the three signal terminals 13 connected to the IGBT chip in the second bridge arm chip group 112 can be arranged in the opposite direction X as E2, G2, C2.

[0187] Based on the above embodiments, in another embodiment of this application, at least one power control circuit 11 has two temperature detection terminals 15 disposed on the surface between the first bridge arm chipset 111 and the second bridge arm chipset 112, and a thermistor R is connected between the two temperature detection terminals 15. Optionally, the thermistor R can be a negative temperature coefficient thermistor. By setting two temperature detection terminals 15 in the target area, the thermistor R can be integrated in the target area. Not only can the temperature detection terminals 15 and the thermistor R be integrated in the target area, but the power module can also realize functions such as temperature monitoring, overcurrent protection, and surge voltage suppression based on the thermistor R.

[0188] When the power module includes multiple power control circuits 11, each power control circuit 11 can be configured to have two temperature detection terminals 15 to connect to a thermistor. As described below, the multiple power control circuits 11 in the drive control module are configured to have two temperature detection terminals 15 respectively. Alternatively, one of the multiple power control circuits 11 can be configured to have two temperature detection terminals 15 to connect to a thermistor. As described below, one of the multiple power control circuits 11 in the power generation control module is configured to have two temperature detection terminals 15.

[0189] In one implementation, such as Figure 3 As shown, in a single power control circuit 11, the first power chip 121 in the first bridge arm chipset 111 needs to be connected to three signal terminals 13 (i.e., C1, E1, and G1), and the first power chip 121 in the second bridge arm chipset 112 needs to be connected to three signal terminals 13 (i.e., C2, E2, and G2). The two bridge arm chipsets require a total of six signal terminals 13. Furthermore, two additional signal terminals 13 can be used as temperature detection terminals 15. Thus, a power control circuit 11 requires a total of eight signal terminals. This method is similar to... Figure 2 Compared to the method shown, in a power control circuit 11 connected to a single phase (U phase, or V phase, or W phase), without changing the number of signal terminals 13, all 8 signal terminals 13 in the same power control circuit 11 are concentrated in the target area, which can reduce the layout area occupied by the signal terminals 13 in the power control circuit 11.

[0190] Optionally, such as Figure 5 and Figure 6As shown, at least one power control circuit is a second power control circuit. In the second power control circuit, the first bridge arm chip group 111 and the second bridge arm chip group 112 are both connected to signal terminals located in the first terminal group and are also connected to signal terminals located in the second terminal group. The layout of the signal terminals 13 connected to the two bridge arm chip groups in the two terminal groups can be set according to requirements to facilitate the multiplexing of the signal terminals 13 connected to the two bridge arm chip groups and reduce the number of signal terminals 13.

[0191] refer to Figure 5 and Figure 6 , Figure 5 This is a schematic diagram illustrating another layout of signal terminals in a power module provided in an embodiment of this application. Figure 6 for Figure 5 The equivalent circuit diagram of the power module shown is based on the above implementation method. Figure 5 and Figure 6 In the illustrated configuration, for the same power control circuit 11, in the first bridge arm chipset 111, the second and third terminals connected to the first power chip 121 are both located in the first terminal group 171, and the first terminal connected to the first power chip 121 is located in the second terminal group 172, as shown. Figure 5 As shown, G1 and E1 are located in the first terminal group, and C1 is located in the second terminal group 172; in the second bridge arm chip group 112, the second and third terminals connected to the first power chip 121 are both located in the second terminal group 172, as shown. Figure 5 As shown, E2 and G2 are both located in the second terminal group 172.

[0192] based on Figure 6 It can be seen that since the second terminal of the first power chip 121 in the first bridge arm chipset 111 and the first terminal of the first power chip 121 in the second bridge arm chipset 112 are connected to the same AC terminal 14, they are at the same potential, thus allowing them to share the same signal terminal 13. Based on this, in Figure 5 and Figure 6 In the illustrated configuration, the second terminal in the first terminal group 171 is connected to the first terminal of the first power chip 121 in the second bridge arm chipset 112. This allows the second terminal connected to the second terminal of the first power chip 121 in the first bridge arm chipset 111 to serve as the first terminal connected to the first terminal of the first power chip 121 in the second bridge arm chipset 112. Both are the same signal terminal 13, and E1 and C2 are the same signal terminal 13, thereby reducing the number of signal terminals 13 in the power module and reducing its size. As described below, for a generator control module, the three-phase power control circuit 11 connected to the generator can be integrated into the same power module, and each power control circuit 11 can save the first terminal connected to the second bridge arm chipset 112.

[0193] In this embodiment, the power module may include at least one of a drive control module and a power generation control module; the AC terminal 14 of the drive control module is used to connect to the drive motor, and the AC terminal 14 of the power generation control module is used to connect to the generator motor; both the drive control module and the power generation control module include a power control circuit 11.

[0194] For vehicles including drive motors and / or generator motors, a motor controller is required to control the motor's operating state. The motor controller includes a power module. In conventional motor controllers, the signal terminals of the power module are arranged around the perimeter of the power control circuit, resulting in the signal terminals occupying a large layout space and hindering circuit interconnection between the power module and external circuits. In this embodiment, the drive control module includes the power control circuit 11 provided in any of the above embodiments, which reduces the layout area occupied by the signal terminals 13 in the drive control module, facilitating circuit interconnection between the drive control module and external circuits; and / or the generator control module includes the power control circuit 11 provided in any of the above embodiments, which reduces the layout area occupied by the signal terminals 13 in the generator control module, facilitating circuit interconnection between the generator control module and external circuits.

[0195] In one implementation, such as Figure 5 and Figure 6 As shown, since E1 can be reused as C2, therefore relative to Figure 2 and Figure 3 As shown, this arrangement reduces the number of signal terminals 13 (first terminals) connected in the second bridge arm chipset 112. Each phase's power control circuit 11 can reduce one first terminal, and the power module integrated with the three-phase power control circuit 11 can reduce three signal terminals 13, thus reducing the size of the power module and facilitating the integrated integration of the three-phase power control circuits within the power module.

[0196] refer to Figure 7 , Figure 7 This is a schematic diagram of the layout of signal terminals in a drive control module provided in an embodiment of this application. The equivalent circuit diagram of the drive control module can be as follows: Figure 1 As shown. In this method, the AC terminals 14 of the three power control circuits 11 serve as output terminals to provide operating voltage to the drive motor.

[0197] Based on the above implementation methods, Figure 1 and Figure 7In the illustrated configuration, the drive control module includes three power control circuits 11 arranged sequentially. As described above, within the same power control circuit 11, the first bridge arm chip group 111 and the second bridge arm chip group 112 are positioned opposite each other in the first direction Y, and the signal terminal 13 is located on the surface of the substrate assembly 10 between the two bridge arm chip groups. The three power control circuits 11 can be arranged sequentially in the second direction X.

[0198] On the same side surface of the substrate assembly 10, the drive control module includes three power control circuits 11 arranged in sequence. The three power control circuits 11 are connected one-to-one with the U-phase terminal, V-phase terminal and W-phase terminal in the drive motor. In the drive control module, the layout structure of the three power control circuits 11 on the surface of the substrate assembly 10 is the same. That is, for any two power control circuits 11 in the drive control module, the layout of the power chip 12 in the power control circuit is the same, and the layout of the signal terminal 13 is the same.

[0199] For the drive control module, since the three power control circuits 11 connected to the drive motor have the same layout structure, the three-phase AC output of the drive control module can have good electrical performance consistency, enabling the three power control circuits 11 to provide balanced and stable current to the drive motor, thereby achieving smooth operation of the drive motor. Moreover, the identical layout structure of the three power control circuits 11 also facilitates the layout of the power chip 12 and signal terminals 13 in the drive control module, which can simplify the manufacturing process of the drive control module.

[0200] exist Figure 7 In the illustrated configuration, the layout of the signal terminals 13 in the power control circuit 11 of each phase can all adopt... Figure 3 As shown in the diagram. At this time, in the power control circuit 11 of each phase, the three signal terminals connected to the first power chip 121 of the first bridge arm chip group 111 are arranged sequentially in the second direction X and are all located in the first terminal group 171. The three signal terminals connected to the first power chip 121 of the second bridge arm chip group 112 are arranged sequentially in the second direction X and are all located in the second terminal group 172.

[0201] In the drive control module, such as Figure 7 As shown, the signal terminals 13 of the power control circuits 11 of each phase in the drive control module can be concentrated between two bridge arm chipsets that are arranged opposite each other in the first direction Y. This can reduce the layout area occupied by the signal terminals 13 in the power control circuits 11 of each phase and facilitate the interconnection between the drive control module and external circuits.

[0202] exist Figure 7In the illustrated configuration, three power control circuits 11 can be arranged sequentially along the second direction X. Their AC terminals 14 are OUT1, OUT2, and OUT3, respectively. OUT1 can be connected to the U-phase terminal, OUT2 to the V-phase terminal, and OUT3 to the W-phase terminal. As described above, in the same bridge arm chipset, the first power chip 121 needs to be connected to three signal terminals 13, namely, the first terminal C, the second terminal E, and the third terminal G.

[0203] Optionally, such as Figure 7 As shown, along the second direction X, in the three power control circuits 11, the first terminals C connected to the first bridge arm chip group 111 are represented by C1, C3 and C5 respectively, the second terminals E connected to the first bridge arm chip group 111 are represented by E1, E3 and E5 respectively, and the third terminals G connected to the first bridge arm chip group 111 are represented by G1, G3 and G5 respectively; the first terminals C connected to the second bridge arm chip group 112 are represented by C2, C4 and C6 respectively, the second terminals E connected to the second bridge arm chip group 112 are represented by E2, E4 and E6 respectively, and the third terminals G connected to the second bridge arm chip group 112 are represented by G2, G4 and G6 respectively.

[0204] Optionally, such as Figure 7 As shown, along the second direction X, each of the three power control circuits 11 has two temperature detection terminals. The temperature detection terminals 15 in the three power control circuits 11 are NTC1, NTC2, and NTC3, respectively. The thermistors R connected to the two temperature detection terminals 15 in each of the three power control circuits 11 are R1, R2, and R3, respectively. The thermistors R in different power control circuits 11 can be the same.

[0205] refer to Figure 8 and Figure 9 , Figure 8 This is a schematic diagram illustrating the layout of signal terminals in a power generation control module according to an embodiment of this application. Figure 9 for Figure 8 The equivalent circuit diagram of the power generation control module is shown. In this method, the AC terminals 14 of the three power control circuits 11 serve as input terminals to receive the electrical energy output from the generator.

[0206] Based on the above implementation methods, Figure 8 and Figure 9In the illustrated configuration, the power generation control module includes three power control circuits 11 arranged sequentially. These three power control circuits 11 are connected one-to-one with the U-phase, V-phase, and W-phase terminals of the generator. In this configuration, as described above, within the same power control circuit 11, the first bridge arm chip group 111 and the second bridge arm chip group 112 are positioned opposite each other in the first direction Y, with signal terminals 13 located on the surface of the substrate assembly 10 between the two bridge arm chip groups. The three power control circuits 11 can be arranged sequentially in the second direction X. In the power generation control module, the power chips 12 in the three power control circuits 11 have the same layout on the surface of the substrate assembly 10.

[0207] Optionally, such as Figure 8 As shown, along the second direction X, in the three power control circuits 11, the AC terminals 14 are OUT1', OUT2', and OUT3' respectively. The second terminals E connected to the first bridge arm chip group 111 are represented by E1', E3', and E5' respectively, and the third terminals G connected to the first bridge arm chip group 111 are represented by G1', G3', and G5' respectively. The first terminals C connected to the second bridge arm chip group 112 are represented by C2', C4', and C6' respectively, the second terminals E connected to the second bridge arm chip group 112 are represented by E2', E4', and E6' respectively, and the third terminals G' connected to the second bridge arm chip group 112 are represented by G2', G4', and G6' respectively. Among them, E1' and C2' are the same signal terminal 13, E3' and C4' are the same signal terminal 13, and E5' and C6' are the same signal terminal 13. All first bridge arm chipsets 111 are connected to the same first terminal C, which is denoted as C1'.

[0208] For the power generation control module, in the first bridge arm chipset 111 of the three power control circuits 11, the first pole of the first power chip 121 is connected to the same first terminal; as shown in the example Figure 8 and Figure 9 As shown, in the three power control circuits 11, all the first power chips 121 are connected to DC+ and have the same potential. They can be connected to the same C1' as the first common signal terminal of the first power chips 121 in all the first bridge arm chipsets 111, which is used to connect to external circuits.

[0209] In the same power control circuit, the second terminal connected to the first power chip 121 in the first bridge arm chipset 111 is connected to the first terminal of the first power chip 121 in the second bridge arm chipset 112. For example... Figure 8 and Figure 9As shown, in the power control circuit 11 connected to the U-phase terminal on the left, E1' connected to the first bridge arm chip group 111 and C2' connected to the second bridge arm chip group 112 are the same signal terminal 13; in the power control circuit 11 connected to the V-phase terminal in the middle, E3' connected to the first bridge arm chip group 111 and C4' connected to the second bridge arm chip group 112 are the same signal terminal 13; in the power control circuit 11 connected to the W-phase terminal on the right, E5' connected to the first bridge arm chip group 111 and C6' connected to the second bridge arm chip group 112 are the same signal terminal 13.

[0210] In the power generation control module, one of the power control circuits 11 can be configured to use... Figure 5 The signal terminals 13 connected to the first power chip 121 are arranged as shown in the diagram. Figure 8 The signal terminals 13 (G1', E1', C1', E2' and G2') connected to the left power control circuit 11 are... Figure 5 The power control circuit 11 has the same layout for the signal terminals 13 (G1, E1, C1, E2 and G2) connected to it.

[0211] In the power generation control module, the other two power control circuits 11 are based on Figure 8 The method shown allows for the multiplexing of some signal terminals 13, saving the signal terminals connected to the first poles of each first power chip 121. In other words, in Figure 5 Based on the method shown, Figure 8 and Figure 9 In the illustrated configuration, for both the middle and right-side power control circuits 11, the signal terminals connected to the first poles of the first power chips 121 in both bridge arm chipsets can be removed. For example, for the power control circuit 11 connected to the middle V-phase terminal, the second poles of the first power chips 121 in the first bridge arm chipset 111 and the first poles of the first power chips 121 in the second bridge arm chipset 112 share a single signal terminal 13. By using E3' as C4', C4' can be removed. Similarly, for the power control circuit 11 connected to the right-side W-phase terminal, the second poles of the first power chips 121 in the first bridge arm chipset 111 and the first poles of the first power chips 121 in the second bridge arm chipset 112 share a single signal terminal 13. By using E5' as C6', C6' can be removed.

[0212] In this embodiment, the power chip 12 includes a first power chip 121 and a second power chip 122. Both the first bridge arm chip group 111 and the second bridge arm chip group 112 include the first power chip 121 and the second power chip 122.

[0213] Based on the above implementation method, the power control circuit 11 can be configured as follows: Figure 3 or Figure 7 As shown, the second power chip 122 in the first bridge arm chipset 111 and the second power chip 122 in the second bridge arm chipset 112 are arranged opposite each other, and the signal terminal 13 is located between the second power chip 122 in the first bridge arm chipset 111 and the second power chip 122 in the second bridge arm chipset 112. In this configuration, the first power chip 121 in the first bridge arm chipset 111 is located on the side away from the second bridge arm chipset 112, and the first power chip 121 in the second bridge arm chipset 112 is located on the side away from the first bridge arm chipset 111. Given a fixed chip layout space in the power module, this arrangement allows for a larger distance between the first power chips 121 in the two bridge arm chipsets in the power control circuit 11. This reduces the thermal coupling between the first power chips 121 in the first bridge arm chipset 111 and the first power chips 121 in the second bridge arm chipset 112, avoiding poor heat dissipation caused by a large thermal coupling between the first power chips 121.

[0214] For the drive control module used to connect the drive motor, during the normal operation of the drive motor, the first power chip 121 needs to be continuously turned on to adjust the current according to different operating states to meet the operating requirements of the drive motor. Therefore, the first power chip 121 has a large proportion of on-time in one working cycle. The second power chip 122 only turns on to release energy at the moment when the first power chip 121 is turned off. After the back electromotive force is released, the second power chip 122 will turn off again, waiting to turn on again when the first power chip 121 is turned off in the next working cycle. Therefore, the second power chip 122 has a small proportion of on-time in one working cycle. Based on this, the first power chip 121 has a large proportion of on-time during the operation of the drive control module and is the main heat source. If the distance between the first power chips 121 of the two bridge arm chipsets in the power control circuit 11 is too close, it will lead to strong thermal coupling between the first power chips 121 of the two chips, which is not conducive to the heat dissipation of the power control circuit 11.

[0215] To reduce the thermal coupling between the first power chip 121 of the two bridge arm chipsets in the power control circuit 11, based on the above implementation method, the power control circuit 11 of the drive control module can be configured as follows: Figure 7As shown, the second power chip 122 in the first bridge arm chipset 111 and the second power chip 122 in the second bridge arm chipset 112 are arranged opposite each other, and the signal terminal 13 is located between the second power chip 122 in the first bridge arm chipset 111 and the second power chip 122 in the second bridge arm chipset 112. In this arrangement, the first power chip 121 in the first bridge arm chipset 111 is located on the side away from the second bridge arm chipset 112, and the first power chip 121 in the second bridge arm chipset 112 is located on the side away from the first bridge arm chipset 111. With a fixed chip layout space, the first power chip 121 in the two bridge arm chipsets can have the maximum spacing, thereby effectively reducing the thermal coupling between the first power chips 121 in the two bridge arm chipsets, avoiding heat accumulation in the drive control module, and facilitating heat dissipation in the drive control module.

[0216] In other embodiments, the power control circuit 11 may also be configured such that the first power chip 121 in the first bridge arm chip group 111 and the first power chip 121 in the second bridge arm chip group 112 are arranged opposite to each other, and the signal terminal 13 is located between the first power chip 121 in the first bridge arm chip group 111 and the first power chip 121 in the second bridge arm chip group 112.

[0217] Based on the above implementation method, the power control circuit can be configured as follows: Figure 5 and Figure 8 As shown, in the power control circuit 11, the first power chip 121 in the first bridge arm chipset 111 and the first power chip 121 in the second bridge arm chipset 112 are arranged opposite each other, and the signal terminal 13 is located between the first power chip 121 in the first bridge arm chipset 111 and the first power chip 121 in the second bridge arm chipset 112. In this configuration, the second power chip 122 in the first bridge arm chipset 111 is located on the side away from the second bridge arm chipset 112, and the second power chip 122 in the second bridge arm chipset 112 is located on the side away from the first bridge arm chipset 111. Given a fixed chip layout space in the power module, this arrangement allows for a larger distance between the second power chips 122 in the two bridge arm chipsets in the power control circuit 11. This reduces the thermal coupling between the second power chips 122 in the first bridge arm chipset 111 and the second bridge arm chipset 112, avoiding poor heat dissipation due to excessive thermal coupling between the second power chips 122.

[0218] For the power generation control module used to connect the generator motor, during normal operation of the generator motor, the second power chip 122 is mainly responsible for providing a freewheeling path, allowing the current generated by the generator motor to flow smoothly to the power battery 24 to meet the continuous charging needs of the power battery 24. Therefore, the second power chip 122 has a large proportion of conduction time in one working cycle. The first power chip 121 mainly controls the power generation process and energy feedback under power generation conditions, and needs to be turned on and off according to the control signal. Due to the output characteristics and energy conversion method of the generator motor, the first power chip 121 has a small proportion of conduction time in one working cycle. Based on this, in the power generation control module, the second power chip 122 has a large proportion of conduction time and is the main heat source. If the second power chips 122 of the two bridge arm chipsets in the power control circuit 11 are close together, it will cause strong thermal coupling between the two second power chips 122, which is not conducive to heat dissipation of the power control circuit 11.

[0219] To reduce the thermal coupling between the second power chips 122 of the two bridge arm chipsets in the power control circuit 11, based on the above implementation, the power control circuit 11 of the power generation control module can be configured as follows: Figure 8 As shown, the first power chip 121 in the first bridge arm chipset 111 and the first power chip 121 in the second bridge arm chipset 112 are arranged opposite each other, and the signal terminal 13 is located between the first power chip 121 in the first bridge arm chipset 111 and the first power chip 121 in the second bridge arm chipset 112. In this arrangement, the second power chip 122 in the first bridge arm chipset 111 is located on the side away from the second bridge arm chipset 112, and the second power chip 122 in the second bridge arm chipset 112 is located on the side away from the first bridge arm chipset 111. With a fixed chip layout space, the second power chip 122 in the two bridge arm chipsets can have the maximum spacing, thereby effectively reducing the thermal coupling between the second power chips 122 in the two bridge arm chipsets, avoiding heat accumulation in the power generation control module, and facilitating heat dissipation in the power generation control module.

[0220] Currently, hybrid vehicle powertrains typically include two electric motors: a drive motor and a generator motor. These two motors require control of their operation via a motor controller that includes a power module. One approach uses two independent motor controllers, one including a drive control module and the other including a generator control module, to control the drive and generator motors respectively. Another approach uses a single motor controller that includes both a drive control module and a generator control module.

[0221] Based on the above embodiments, the power module can simultaneously include a drive control module and a power generation control module, so that the power module can be used to control both the drive motor and the generator motor. As mentioned above, the number of signal terminals 13 in the power control circuit 11 of the power generation control module can be reduced, thus reducing the size of the power generation control module. This facilitates the integration of the three power control circuits 11 in the power generation control module onto the surface of the same substrate assembly 10 and their integral integration with the drive control module.

[0222] It should be noted that the power module provided in this application embodiment is not limited to use in hybrid vehicles, but can also be used for the control of drive motors and / or generator motors in other vehicles.

[0223] refer to Figure 10 , Figure 10 This is a schematic diagram of a chip layout for integrating a drive control module and a power generation control module, provided in an embodiment of this application. Based on the above-described implementation, Figure 10 The power module shown includes both a drive control module 181 and a power generation control module 182. In both the drive control module 181 and the power generation control module 182, the second power chip 122 in the first bridge arm chipset 111 and the second power chip 122 in the second bridge arm chipset 112 are positioned opposite each other, and the signal terminal 13 is located between the second power chip 122 in the first bridge arm chipset 111 and the second power chip 122 in the second bridge arm chipset 112.

[0224] exist Figure 10 In the illustrated configuration, for the power control circuits 11 of the drive control module 181 and the power generation control module 182, both bridge arm chip groups are arranged with the second power chip 122 facing each other in the first direction Y. This configuration not only allows for a larger distance between the first power chip 121 in the drive control module 181, reducing the thermal coupling of the first power chip 121 in the two bridge arm chip groups of the drive control module 181, but also ensures that both bridge arm chip groups in the drive control module 181 and the power generation control module 182 are arranged with the second power chip 122 facing each other in the first direction Y. The two types of power chips 12 in the drive control module 181 and the power generation control module 182 have a unified relative position layout, which facilitates the layout of the power chips 12.

[0225] for Figure 10 In the chip layout shown, under the same chip layout area, since the first power chip 121 in the two bridge arm chip groups has a large distance, the drive control module 181 can achieve a larger current capability based on the first power chip 121. Since the distance between the second power chip 122 in the two bridge arm chip groups is small, and the power generation capability is mainly related to the second power chip 122, the power generation efficiency of the power generation control module 182 will be slightly reduced.

[0226] refer to Figure 11 , Figure 11 This is a schematic diagram of another chip layout for integrating the drive control module and the power generation control module in an embodiment of this application. Based on the above implementation method, Figure 11 The power module shown includes both a drive control module 181 and a power generation control module 182. In the drive control module 181 and the power generation control module 182, the first power chip 121 in the first bridge arm chipset 111 and the first power chip 121 in the second bridge arm chipset 112 are arranged opposite to each other, and the signal terminal 13 is located between the first power chip 121 in the first bridge arm chipset 111 and the first power chip 121 in the second bridge arm chipset 112.

[0227] exist Figure 11 In the illustrated configuration, for the power control circuits 11 of the drive control module 181 and the power generation control module 182, both bridge arm chip groups have the first power chip 121 arranged opposite to each other in the first direction Y. This configuration not only allows for a larger distance between the second power chip 122 in the power generation control module 182, reducing the thermal coupling of the second power chip 122 in the two bridge arm chip groups of the power generation control module 182, but also ensures that both bridge arm chip groups in the drive control module 181 and the power generation control module 182 are arranged with the first power chip 121 arranged opposite to each other in the first direction Y. The two types of power chips 12 in the drive control module 181 and the power generation control module 182 have a unified relative position layout, which facilitates the layout of the power chips 12.

[0228] for Figure 11 In the chip layout shown, with the same chip layout area, the second power chip 122 in the two bridge arm chipsets has a large distance, which can make the power generation control module 182 have a large power generation efficiency, but will slightly reduce the current capability of the drive control module 181.

[0229] refer to Figure 12 , Figure 12 This is a schematic diagram illustrating another chip layout method for integrating a drive control module and a power generation control module as described in this application embodiment. Based on the above embodiments... Figure 12The power module shown includes both a drive control module 181 and a power generation control module 182. In this configuration, within the drive control module 181, the second power chip 122 in the first bridge arm chipset 111 and the second power chip 122 in the second bridge arm chipset 112 are positioned opposite each other, with a signal terminal 13 located between them. Similarly, within the power generation control module 182, the first power chip 121 in the first bridge arm chipset 111 and the first power chip 121 in the second bridge arm chipset 112 are positioned opposite each other, with a signal terminal 13 located between them. Therefore, this configuration not only reduces the thermal coupling of the first power chips 121 in the two bridge arm chipsets of the drive control module 181 but also reduces the thermal coupling of the second power chips 122 in the two bridge arm chipsets of the power generation control module 182.

[0230] for Figure 12 The chip layout shown allows the power generation control module 182 to have a higher power generation efficiency and the drive control module 181 to have a higher current capability within the same chip layout area.

[0231] like Figures 10-12 As shown, this application embodiment can integrate the drive control module 181 and the power generation control module 182 into one unit to realize a novel dual-electric control scheme. The technical solution of this application concentrates the signal terminals 13 in the area between the two bridge arm chipsets of the power control circuit 11, which can concentrate the signal terminals 13 in a fixed area, facilitating subsequent circuit layout in the PCB.

[0232] In this embodiment, when the drive control module 181 and the power generation control module 182 are integrated, the layout of the two power chips 12 and the layout of the signal terminals 13 within them are not limited to those of the two modules. Figures 10-12 As shown, the layout of the power chip 12 and the layout of the signal terminal 13 can adopt any of the above-mentioned implementation methods, and this application embodiment will not elaborate further.

[0233] Optionally, each power control circuit 11 in the drive control module 181 is a first power control circuit. The two bridge arm chipsets in the first power control circuit can each have a separate first terminal, a separate second terminal, and a separate third terminal, which can realize accurate and precise control of the power chips in each first power control circuit and meet the high control requirements of the drive motor.

[0234] In this embodiment, both the drive control module 181 and the power generation control module 182 include a plurality of power control circuits 11 arranged sequentially along the second direction X. Optionally, both may each include three power control circuits.

[0235] When the power module includes a power generation control module 182, the multiple power control circuits 11 in the power generation control module 182 can all be as follows: Figure 5 and Figure 6 In the second power control circuit shown, the second terminal connected to the first bridge arm chipset 111 can be reused as the first terminal connected to the second bridge arm chipset 112. In this case, each power control circuit 11 in the power generation control module 182 can save the first terminal connected to the second bridge arm chipset 112. Optionally, to further reduce the number of signal terminals 13 in the power generation control module 182, one of the second power control circuits can be configured to have a first signal terminal, and the other second power control circuits can reuse this first signal terminal, such as... Figure 8 , Figures 10-12 As shown in any embodiment, the power control circuit 11 on the left has a first signal terminal C1', and the other two power control circuits 11 share the first signal terminal C1' with the power control circuit 11 on the left.

[0236] Each power control circuit 11 in the power generation control module 182 is a second power control circuit, which allows each power control circuit to share the same first terminal. Furthermore, the second terminal connected to the first bridge arm chip group 111 in each power control circuit 11 is reused as the first terminal of the second bridge arm chip group. This can significantly reduce the number of signal terminals 13 in the power generation control module 182, reduce the size of the power generation control module 182 in the second direction X, and meet the basic control requirements of the generator motor.

[0237] refer to Figure 13 , Figure 13 A cross-sectional view of a power module provided in this application embodiment shows that, based on the above-described implementation, the substrate assembly 10 includes:

[0238] Heat sink 101, which may include heat dissipation fins;

[0239] The copper-clad ceramic plate includes: a ceramic substrate 102; a first copper clad layer 103 located on the side surface of the ceramic substrate 102 facing away from the heat sink 101; and a second copper clad layer 104 located on the side surface of the ceramic substrate 102 facing the heat sink 101.

[0240] The copper-clad ceramic plate is welded and fixed to the heat sink 101 through a backing solder layer 106; each power chip 12 is welded and fixed to the surface of the copper-clad ceramic plate away from the heat sink 101 through a chip solder layer 105; each signal terminal 13 is fixed to the surface of the copper-clad ceramic plate away from the heat sink 101.

[0241] Optionally, the height of signal terminal 13 exceeds the top of power chip 12 to facilitate subsequent mounting of a PCB connected to signal terminal 13 above the power module. Figure 13 The image only shows a cross-sectional view of the power module within the same bridge arm chipset region for ease of illustration. Figure 13 Only one signal terminal 13 is shown in the image.

[0242] refer to Figure 14 , Figure 14 This is a schematic diagram of the front bonding principle between the first power chip and the second power chip in the same bridge arm. Figure 14 This is a top view of the first power chip 121 and the second power chip 122 in the same bridge arm chipset. The back sides of the first power chip 121 and the second power chip 122 are fixed to the substrate assembly 10 and soldered to the surface of the substrate assembly 10.

[0243] Combination Figure 13 and Figure 14 As shown, the control electrode 121G and the second electrode 121E of the first power chip 121 are located on the front side of the chip, while its first electrode 121C is located on the back side of the chip. An isolation trench exists between the control electrode 121G and the second electrode 121E. The negative electrode 122E of the second power chip 122 is located on the front side of the chip, and the positive electrode 122C is located on the back side of the chip. In this way, the first electrode 121C of the first power chip 121 and the positive electrode 122C of the second power chip 122 can be directly interconnected based on the wiring in the first copper layer 103, without the need for separate bonding wires. On the top of the front side of the chip, the second electrode 121E of the first power chip 121 and the negative electrode 122E of the second power chip 122 can be connected via bonding wire 19. The bonding wire 19 can be soldered to the power chip 121 using a wire bonding process. The control electrode 121G of the first power chip 121 can also be connected to the corresponding bonding wire 19 via a wire bonding process, and then connected to the corresponding signal terminal 13 via the bonding wire.

[0244] In this embodiment, the drive control module 181 includes multiple power control circuits 11. If the drive motor is a three-phase motor, the drive control module 181 may include three power control circuits. The generator control module 182 includes multiple power control circuits 11. If the generator motor is a three-phase motor, the generator control module 182 may include three power control circuits. The number of power control circuits 11 in the drive control module 181 and the generator control module 182 is related to the motor type and quantity, and is not limited to the method provided in this embodiment.

[0245] Each power control circuit 11 in the drive control module 181 includes an independent copper-clad ceramic plate, and the copper-clad ceramic plates of each power control circuit 11 can be located on the same side surface of the same heat sink 101. The drive control module 181 is used to connect to the drive motor to control the working state of the drive motor. The drive motor needs to precisely control its output torque and speed to meet the driving requirements of the vehicle under different operating conditions. In this embodiment, each power control circuit 11 in the drive control module 181 is fixed to the surface of the heat sink 101 with a separate copper-clad ceramic plate, which can achieve accurate and fine control of the power chips in each power control circuit 11, thereby more accurately controlling the amplitude, phase, and frequency of the current of the drive motor, and ensuring that the torque and speed output by the drive motor can accurately respond to the operating commands and the requirements of the vehicle control system.

[0246] The power generation control module 182 is used to connect to the generator motor to control its operating state. The main function of the generator motor is to convert mechanical energy into electrical energy to charge the power battery. In this process, energy conversion efficiency is paramount, aiming to convert as much mechanical energy as possible into electrical energy and store it in the power battery. In this embodiment, the power control circuits 11 in the power generation control module 182 are fixed to the surface of the heat sink 101 based on the same copper-clad ceramic plate. This reduces costs and increases integration while maintaining certain performance, without significantly impacting energy conversion efficiency.

[0247] Furthermore, compared to a drive motor, the operating current characteristics of a generator motor are relatively simple. During the power generation process, alternating current is converted to direct current by the generator control module 182, and the frequency and amplitude of current changes are relatively stable. Unlike a drive motor, it does not require complex current control and regulation. Therefore, the basic control requirements for the generator motor can be met by sharing the same copper-clad ceramic plate among the various power control circuits 11 in the generator control module 182.

[0248] If each power control circuit 11 in the power generation control module 182 uses a separate copper-clad ceramic plate, an assembly gap needs to be reserved between adjacent copper-clad ceramic plates. This prevents the reuse of signal terminals 13 between different power control circuits 11, resulting in a large size for each copper-clad ceramic plate in the second direction X, and also a large overall size of the power generation control module 182 in the second direction X. In this embodiment, the power control circuits 11 in the power generation control module 182 share the same copper-clad ceramic plate, which saves the aforementioned assembly gap and allows for the reuse of terminals at the same location in different power control circuits 11, significantly reducing the size of the power generation control module 182 in the second direction X.

[0249] When the power module includes both a drive control module 181 and a power generation control module 182, the two control modules can use different heat sinks 101 or the same heat sink 101.

[0250] Based on the above embodiments, another embodiment of this application also provides a motor controller, which includes the power module described above. By optimizing the layout of the signal terminals 13 inside the power module, the size of the power module can be reduced, thereby making the motor controller have a smaller volume.

[0251] Based on the above embodiments, another embodiment of this application provides an electronic control assembly, which includes the motor controller provided in the above embodiments.

[0252] Based on the above embodiments, another embodiment of this application provides a vehicle, which includes the electronic control assembly provided in the above embodiments.

[0253] The motor controller, electronic control assembly, and vehicle disclosed in the above embodiments have the same or corresponding beneficial effects as the power modules disclosed in the above embodiments. For details, please refer to the descriptions in the above embodiments, which will not be repeated here.

[0254] In this application, the vehicle includes new energy vehicles, and the power module may include both a drive control module and a power generation control module.

[0255] New energy vehicles use electric drive systems to propel themselves. Taking range-extended electric vehicles as an example, their topology is as follows: Figure 15 As shown.

[0256] refer to Figure 15 , Figure 15 This is a topology diagram of a range-extended new energy vehicle provided in an embodiment of this application. Figure 15 In the diagram, solid lines represent mechanical connections, and dashed lines represent electrical connections.

[0257] like Figure 15As shown, the core component of a range-extended electric vehicle is the range extender 28, which includes a generator motor 26 and a generator motor controller 25 connected to it; the generator motor 26 is also connected to the engine 27. The generator motor controller 25 is connected to the power battery 24 and the inverter 23 respectively. The inverter 23 is connected to the drive motor 22, and the drive motor 22 is connected to the electric drive unit 21. The electric drive unit 21 includes a reducer and a differential.

[0258] When the power battery 24's charge drops to a certain level, the range extender 28 is activated, and the engine 27 drives the generator motor 26 to generate electricity. Part of the generated electricity can be used to supply the drive motor 22, and the other part can be used to charge the power battery 24.

[0259] Range-extended electric vehicles (REEVs) have many advantages. For example, in daily urban commuting, REEVs can be driven purely on electricity, achieving zero emissions, reducing exhaust pollution, and meeting environmental protection requirements. They are also more energy-efficient than fuel-powered vehicles, reducing energy consumption and operating costs. REEVs are equipped with an engine 27 as a range extender. When the power battery 24 is low on power, the engine 27 can start generating electricity to provide continuous power to the vehicle, avoiding the range anxiety problem caused by the limited range of pure electric vehicles and making long-distance travel more convenient.

[0260] Furthermore, range-extended electric vehicles (REEVs) offer numerous advantages in terms of driving experience. Essentially, a REEV is a pure electric drive system, where the vehicle's power is entirely provided by the drive motor 22. The engine 27 does not directly drive the vehicle but instead acts as a generator, starting when the battery 24's charge is low to convert fuel into electricity to power the drive motor 22 or charge the battery 24. This pure electric drive method ensures a single and pure power source, consistent with the driving mechanism of pure electric vehicles, fundamentally guaranteeing a comfortable driving experience.

[0261] On the other hand, the characteristics of the drive motor 22 determine that it can output maximum torque instantly. In a range-extended topology vehicle, when the driver presses the accelerator pedal, the drive motor 22 can respond quickly and output powerful power to achieve rapid start and acceleration. This instantaneous power response is far superior to that of traditional fuel vehicles, allowing the driver to feel a more direct and rapid push-back feeling. Whether in the frequent start-stop of urban roads or overtaking operations on highways, it can easily cope with the situation and bring a smooth driving experience.

[0262] On the other hand, during the operation of the range-extended vehicle, since it is always driven by the drive motor 22, there is no power interruption problem when shifting gears as in traditional fuel vehicles. Whether driving at low speed or high speed, the power output remains continuous and stable. Even when the power battery 24 is low on power, during the process of the engine 27 starting to generate electricity, the system can ensure that the power output of the drive motor 22 is not affected through a precise control strategy, and there will be no jerking or power interruption. This provides the driver with a consistently stable driving experience, improving driving comfort and safety.

[0263] Currently, the electronic control assembly of range-extended electric vehicles includes components such as a generator motor 26, a drive motor 22, a generator motor controller 25, and a drive motor controller. Among them, the generator motor controller 25 and the drive motor controller are two independent components.

[0264] In this application embodiment, based on the above embodiment, by optimizing the layout of the signal terminals inside the power module, the size of the substrate components in each power control circuit in the drive control module in the second direction can be reduced at least, and the size of the substrate components in each power control circuit in the power generation control module in the second direction can be reduced at least, thereby reducing the size of the two-in-one power module that integrates the power module and the power generation control module, and realizing the miniaturization design of the power module.

[0265] The various embodiments in this application are described in a progressive, parallel, or combined manner. Each embodiment focuses on its differences from other embodiments, and similar or identical parts between embodiments can be referred to interchangeably. The embodiments provided in this application can be combined with each other without contradiction.

[0266] It should be noted that, in the description of this application, the accompanying drawings and embodiments are illustrative rather than restrictive. The same reference numerals throughout the embodiments identify the same structures. Additionally, for ease of understanding and description, the thicknesses of some layers, films, panels, regions, etc., may be exaggerated in the drawings. It is also understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, the element may be directly on the other element or there may be intermediate elements. Furthermore, "on" means positioning an element on or below another element, but does not inherently mean positioning it above another element according to the direction of gravity.

[0267] The terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the middle.

[0268] It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or apparatus that includes the aforementioned element.

[0269] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A power module, characterized in that, The power module includes a converter bridge; The converter bridge includes at least one bridge arm, and the at least one bridge arm includes an upper bridge arm and a lower bridge arm, both of which are connected to signal terminals; at least a portion of the signal terminals are located between the upper bridge arm and the lower bridge arm.

2. The power module according to claim 1, characterized in that, Both the upper bridge arm and the lower bridge arm include a first power chip; the signal terminal includes: a first terminal connected to a first electrode of the first power chip; a second terminal connected to a second electrode of the first power chip; and a third terminal connected to a control electrode of the first power chip. In the signal terminals connected to either the upper bridge arm or the lower bridge arm, the distance between the first terminal and the second terminal is greater than or equal to the distance between the second terminal and the third terminal, and the distance between the first terminal and the third terminal is greater than or equal to the distance between the second terminal and the third terminal.

3. The power module according to claim 1 or 2, characterized in that, Both the upper bridge arm and the lower bridge arm include a first power chip; the signal terminal includes: a first terminal connected to a first electrode of the first power chip; a second terminal connected to a second electrode of the first power chip; and a third terminal connected to a control electrode of the first power chip. The distance between the first terminal and the second terminal is greater than or equal to 2 mm; And / or, the distance between the first terminal and the third terminal is greater than or equal to 2 mm.

4. The power module according to claim 3, characterized in that, The distance between the first terminal and the second terminal is greater than or equal to 4.5 mm; And / or, the distance between the first terminal and the third terminal is greater than or equal to 4.5 mm.

5. The power module according to claim 4, characterized in that, The distance between the first terminal and the second terminal is greater than or equal to 6.5 mm; And / or, the distance between the first terminal and the third terminal is greater than or equal to 6.5 mm.

6. The power module according to any one of claims 2 to 5, characterized in that, In the signal terminals connected to either the upper bridge arm or the lower bridge arm, the distance between the second terminal and the third terminal is less than or equal to 4.5 mm.

7. The power module according to any one of claims 1 to 6, characterized in that, The distance between the second terminal connected to the upper bridge arm and the second terminal connected to the lower bridge arm is greater than or equal to 2mm; And / or, the distance between the second terminal connected to the upper bridge arm and the third terminal connected to the lower bridge arm is greater than or equal to 2 mm.

8. The power module according to claim 7, characterized in that, The distance between the second terminal connected to the upper bridge arm and the second terminal connected to the lower bridge arm is greater than or equal to 4.5 mm; And / or, the distance between the second terminal connected to the upper bridge arm and the third terminal connected to the lower bridge arm is greater than or equal to 4.5 mm.

9. The power module according to claim 8, characterized in that, The distance between the second terminal connected to the upper bridge arm and the second terminal connected to the lower bridge arm is greater than or equal to 6.5 mm; And / or, the distance between the second terminal connected to the upper bridge arm and the third terminal connected to the lower bridge arm is greater than or equal to 6.5 mm.

10. The power module according to any one of claims 1 to 9, characterized in that, The upper bridge arm and the lower bridge arm are arranged opposite to each other in a first direction; At least a portion of the signal terminals are arranged along a second direction.

11. The power module according to any one of claims 2 to 10, characterized in that, The signal terminals, at least in part, are configured as: a first terminal group and a second terminal group arranged along the first direction, each of the first terminal group and the second terminal group including at least one signal terminal, the signal terminals in the first terminal group and the second terminal group being arranged along the second direction, the second direction being perpendicular to the first direction.

12. The power module according to claim 11, characterized in that, The signal terminals connected to the first power chip in the upper bridge arm are all located in the first terminal group; The signal terminals connected to the first power chip in the lower bridge arm are all located in the second terminal group.

13. The power module according to claim 11 or 12, characterized in that, In either the first terminal group or the second terminal group, the first terminal, the second terminal, and the third terminal are arranged sequentially along a second direction; Alternatively, the third terminal, the second terminal, and the first terminal may be arranged sequentially along the second direction.

14. The power module according to claim 13, characterized in that, In either the first terminal group or the second terminal group, the first terminal is located in a first position, one of the second terminal and the third terminal is located in a second position, and the other is located in a third position, with the first position, the second position, and the third position arranged sequentially along a second direction; In the other of the first terminal group or the second terminal group, the first terminal is located in a first position, one of the second terminal and the third terminal is located in a second position, and the other is located in a third position, wherein the third position, the second position, and the first position are arranged sequentially along the second direction.

15. The power module according to claim 12, characterized in that, The first terminal group includes a first terminal connected to the upper bridge arm and a second and third terminal connected to the lower bridge arm. The second terminal group includes a first terminal connected to the lower bridge arm and a second and third terminal connected to the upper bridge arm.

16. The power module according to claim 15, characterized in that, The first terminal, the second terminal, and the third terminal in the first terminal group are arranged sequentially along the second direction; The third terminal, the second terminal, and the first terminal in the second terminal group are arranged sequentially along the second direction.

17. The power module according to any one of claims 1 to 16, characterized in that, Both the upper bridge arm and the lower bridge arm include a first power chip; The signal terminals include a first terminal, a second terminal, and a third terminal that are respectively connected to the first electrode, the second electrode, and the control electrode of the first power chip in the upper bridge arm; The signal terminals also include a second terminal and a third terminal that are respectively connected to the second electrode and the control electrode of the first power chip in the lower bridge arm.

18. The power module according to claim 17, characterized in that, At least a portion of the signal terminals are configured as: a first terminal group and a second terminal group arranged along a first direction, each of the first terminal group and the second terminal group including at least one signal terminal, and the signal terminals in the first terminal group and the second terminal group are arranged along a second direction, which is perpendicular to the first direction; The first terminal is disposed in the second terminal group, and in the first direction, the second terminal group is located between the first terminal group and the DC terminal of the power module.

19. The power module according to any one of claims 1-18, characterized in that, Both the upper bridge arm and the lower bridge arm include a second power chip; in either the upper bridge arm or the lower bridge arm, the second power chip and the first power chip are arranged opposite to each other in a first direction.

20. The power module according to any one of claims 1 to 19, characterized in that, A temperature detection terminal is also provided between the upper bridge arm and the lower bridge arm, and the temperature detection terminal is connected to a temperature measuring element.

21. The power module according to any one of claims 1 to 20, characterized in that, The power module includes at least one of a drive control module and a power generation control module; the AC terminal of the drive control module is used to connect to the drive motor, and the AC terminal of the power generation control module is used to connect to the generator motor; both the drive control module and the power generation control module include the converter bridge.

22. The power module according to claim 21, characterized in that, The drive control module includes three bridge arms arranged in sequence, which are used to connect one-to-one with the U-phase terminal, V-phase terminal and W-phase terminal in the drive motor.

23. The power module according to claim 21, characterized in that, The power generation control module includes three bridge arms arranged in sequence, which are used to connect one-to-one with the U-phase terminal, V-phase terminal and W-phase terminal in the generator motor; The three bridge arms in the power generation control module share a common liner plate; The power generation control module includes a first power chip, and the signal terminals include a first terminal connected to a first electrode of the first power chip; a second terminal connected to a second electrode of the first power chip; and a third terminal connected to a control electrode of the first power chip. In the three bridge arms, the first power chip of each upper bridge arm shares the same first terminal.

24. The power module according to any one of claims 2 to 23, characterized in that, The first power chip has an edge line extending along a first direction, and the vertical distance between the third terminal and the edge line extending along the first direction is no greater than 2 mm.

25. A motor controller, characterized in that, Includes the power module as described in any one of claims 1-24.

26. An electronic control assembly, characterized in that, Includes the motor controller as described in claim 25.

27. A vehicle, characterized in that, include: The electronic control assembly as described in claim 26.

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