Filter unit, electric drive assembly, battery system and vehicle

Abstract

Filter unit (30), characterized in that it comprises the following: a capacitor assembly (32); a copper series assembly comprising a positive amplification copper series (321), a positive motor copper series (322) and a negative copper series (323), each connected to the capacitor assembly, wherein an input end of the positive amplification copper series (321) is connected between a positive electrode of a charging terminal (200) and the input end of a motor, wherein the input end of the positive motor copper series (322) is connected between the output end of the positive electrode of a battery pack (300) and the output end of a negative electrode of a power module, and wherein the negative copper series (323) is connected between the output end of the negative electrode of the battery pack (300) and the input end of the negative electrode of the power module.

Description

Cross-reference to related registration

[0001] The present application claims priority and reference to Chinese patent application no. 202310333085.4, filed on March 30, 2023, and the present application claims priority and reference to Chinese patent application no. 202310324658.7, filed on March 29, 2023. The entire content of the above Chinese patent applications is hereby incorporated into the present application by reference. Technical field

[0002] The present application relates to the technical field of new energy vehicles, in particular a filter unit, an electric drive assembly, a battery system and a vehicle. State of the art

[0003] With the ongoing development of new energy vehicles, the battery voltage of existing electric vehicles is typically increased significantly, for example, from an initial battery voltage of around 400 V to around 800 V, to improve the charging experience. However, the charging stations commonly found in cities, such as public charging stations, cannot meet the charging requirements of 800 V electric vehicles due to their maximum output voltage at the time of their development. Therefore, to enable electric vehicles to connect to low-voltage charging stations, special booster modules are typically used to increase the low-voltage output of the charging stations.

[0004] The amplification module is typically electrically connected to the battery pack and the motor controller via a high-voltage cable harness. To achieve its amplification function, the amplification module requires a separate capacitor structure, which not only takes up space and does not contribute to optimizing the installation space, but also has to be mounted separately, increasing the complexity of vehicle production. Disclosure of the registration

[0005] The present application aims to solve at least part of one of the technical problems in the prior art.

[0006] For this purpose, an embodiment of the present application provides a filter unit, The filter unit according to an embodiment of the present application comprises a capacitor assembly and a copper series assembly, wherein the copper series assembly comprises a positive amplification copper series, a positive motor copper series and a negative copper series, each connected to the capacitor assembly, wherein the input end of the positive motor copper series is connected between the output end of the positive electrode of the battery pack and the output end of the negative electrode of the power module, wherein the negative copper series is connected between the output end of the negative electrode of the battery pack and the input end of the negative electrode of the power module.

[0007] One embodiment of the present application further provides an electric drive assembly.

[0008] The electric drive assembly according to an embodiment of the present application comprises the following: a housing; a cavity, wherein the cavity is provided in the housing; a filter unit according to the above embodiment, wherein the filter unit is provided in the cavity, the input end of the filter unit being connected to the low-voltage input interface; a switch unit, wherein the switch unit is provided in the cavity, the input end of the switch unit being connected to the output end of the filter unit; an electronic control unit, wherein the electronic control unit is provided in the cavity, the input end of the electronic control unit being connected to the output end of the switch unit, while the output end of the electronic control unit is connected to the high-voltage output interface.

[0009] One embodiment of the present application further provides a battery system.

[0010] The battery system according to an embodiment of the present application comprises the following: a battery pack, wherein the battery pack comprises a low-voltage output interface and a high-voltage input interface; an electrical drive assembly according to the above embodiment, wherein the low-voltage input interface of the electrical drive assembly is connected to the low-voltage output interface, while the high-voltage output interface of the electrical drive assembly is connected to the high-voltage input interface.

[0011] One embodiment of the present application further provides a vehicle.

[0012] The vehicle according to an embodiment of the present application comprises a battery system according to the embodiment described above. Drawings of the disclosure Fig. Figure 1 shows a schematic representation of the structure of a filter unit according to some embodiments of the present application; Fig. Figure 2 shows a schematic representation of the structure of the filter unit from another view according to some embodiments of the present application; Fig. Figure 3 shows a schematic representation of the structure of an inductance group according to some embodiments of the present application; Fig. Figure 4 shows a schematic representation of the structure of the filter unit from another view according to some embodiments of the present application; Fig. Figure 5 shows a schematic representation of the structure of a capacitor assembly according to some embodiments of the present application; Fig. Figure 6 shows a schematic representation of the substructure of the capacitor assembly according to some embodiments of the present application; Fig. Figure 7 shows a schematic representation of the structure of a capacitor assembly according to some other embodiments of the present application; Fig. Figure 8 shows a schematic representation of the structure of a positive motor copper series according to some embodiments of the present application; Fig. Figure 9 shows a schematic representation of the structure of a negative copper series according to some embodiments of the present application; Fig. Figure 10 shows a schematic representation of the structure of a positive reinforcing copper series according to some embodiments of the present application. Fig. 11 shows a schematic representation of the structure of an electric drive assembly according to an embodiment of the present application; Fig. Figure 12 shows a schematic representation of the structure of an electric drive assembly according to an embodiment of the present application; Fig. 13 shows a schematic representation of the structure of an electric drive assembly according to an embodiment of the present application; Fig. Figure 14 shows a schematic representation of the structure of a battery system according to some embodiments of the present application; Fig. Figure 15 shows a schematic representation of the structure of the battery system from another view according to an embodiment of the present application, Reference symbol list:

[0013] electric drive assembly 100; charging port 200; battery pack 300; housing body 10; receiving cavity 1001; filter unit 30; inductor group 31; induction magnet ring 311; first positive copper row 312; second positive copper row 313; negative induction copper row 314; capacitor assembly 32; positive amplifying copper row 321; third weld side 321a; second mating side 321b; third connection side 321c; positive motor copper row 322; first weld side 322a; first mating side 322b; first connection side 322c; negative copper row 323; second weld side 323a; second connection side 323b; first X-capacitor 324a; second X-capacitor 324b; first Y-capacitor 325a; second Y-capacitor 325b; third Y-capacitor 325c; first voltage regulator capacitor 326a; second voltage regulator capacitor 326b; first area 327a; second area 327b; first direction X; second direction Y; third direction Z;

[0014] Housing 1; first section 101; second section 102; first support column 103; second support column 104; ribbed plate 105; deflection notch 106; cavity 2; first recess 201; second recess 202; first receiving groove 2011; insulating groove 20111; second receiving groove 2012; low-voltage input interface 3; high-voltage output interface 4; adapter plate 501; switch unit 6; first heat absorption path 601; electronic control unit 7; second heat absorption path 701; motor 8; neutral point interface 801; three-phase interface 802; reduction gear 9; coolant input interface 110; coolant output interface 11; low-voltage output interface 121; high-voltage input interface 122. Specific embodiments

[0015] Embodiments of the present application are described in detail below, and examples of these embodiments are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application; they are not to be understood as limiting the present application.

[0016] Many specific details are set forth in the following description to facilitate a complete understanding of the present application, but the present application can also be implemented in ways other than those described herein. It is understood that the embodiments in the description represent only some of the embodiments of the present application, and not all of them.

[0017] Fig. Figure 1 is a schematic representation of the structure of a filter unit in some embodiments of the present application. Fig. Figure 2 is a schematic representation of a module structure of an amplification-charge topology circuit in some embodiments of the present application.

[0018] As in Fig. Figure 1 shows an embodiment of the present application providing a filter unit 30 comprising a capacitor assembly 32 and a copper series assembly, wherein the copper series assembly comprises a positive amplifying copper series 321, a positive motor copper series 322 and a negative copper series 323, each connected to the capacitor assembly 32, wherein an input end of the positive amplifying copper series 321 is connected between a positive electrode of a charging terminal 200 and the input end of a motor 8, wherein the input end of the positive motor copper series 322 is connected between the output end of the positive electrode of a battery pack 300 and the output end of a negative electrode of an electronic control unit 7.wherein the negative copper series 323 is connected between the output end of the negative electrode of the battery pack 300 and the input end of the negative electrode of the electronic control unit 7.

[0019] It should be noted that the filter unit 30 of the embodiment of the present application is particularly suitable for use as the capacitor assembly 32 of the electric drive assembly 100 of the new energy vehicle, but its use is not limited to this purpose. If there are other devices to which the filter unit 30 of the present invention is applied, they should also fall within the scope of protection of the present invention. For example, the filter unit 30 of the embodiments of the present application can also be applied to a battery-powered car, a ship, a spacecraft, and the like.

[0020] Fig. Figure 2 shows a schematic representation of the structure of the filter unit from another view according to some embodiments of the present application; Fig. Figure 3 shows a schematic representation of the structure of an inductance group according to some embodiments of the present application;

[0021] As in the Fig. 2 and Fig. As shown in Figure 3, in some embodiments the capacitor assembly 32 and the inductor assembly 31 form the filter unit 30, and the inductor assembly 31 comprises an induction magnet ring 311 and a first positive copper row 312, a second positive copper row 313, and a negative induction copper row 314, which extend through the induction magnet ring 311. The first positive copper row 312 is used to connect the positive electrode of the charging terminal 200 and the input end of the motor 8, the second positive copper row 313 is used to connect the output end of the positive electrode of the battery pack 300 and the input end of the positive electrode of the electronic control unit 7, and the negative induction copper row 314 is used to connect the output end of the negative electrode of the battery pack 300 and the input end of the negative electrode of the electronic control unit 7.

[0022] During the charging process, the first positive copper row 312 receives the first output voltage supplied by the external power supply and amplifies this voltage through the amplification circuit formed jointly by the filter unit 30 and the motor 8 to obtain the second output voltage. The positive and negative input terminals of the electronic control unit 7 of the motor controller can be used as the positive and negative output terminals of the amplification circuit to supply the second output voltage to the battery pack 300, thus charging the battery pack 300.

[0023] In the above solution, an inductance of the filter unit 30 is formed by the first positive copper strand 312, the second positive copper strand 313, and the negative induction copper strand 314 passing through the induction magnet ring 311. The first positive copper strand 312 is the positive copper strand of the amplification module, the second positive copper strand 313 is the positive copper strand of the motor controller, and the negative induction copper strand 314 is the common negative electrode of the amplification module and the motor controller. In this embodiment, not only is the inductance of the amplification module integrated into the housing 10 of the motor controller, but the amplification module and the motor controller also share a negative induction copper strand. This saves the space occupied by the inductance group 31 and reduces material costs, such as those for connecting cable harnesses.

[0024] Fig. Figure 4 shows a schematic representation of the structure of the filter unit from another view according to some embodiments of the present application; Fig. Figure 5 shows a schematic representation of the structure of a capacitor assembly according to some embodiments of the present application;

[0025] As in the Fig. 4 and Fig. As shown in Figure 5, the output end of the first positive copper series 312 and the input end of the positive amplifying copper series 321 can be connected by welding, bolting, etc., and the output end of the positive amplifying copper series 321 can be connected to a relay of the amplifying module, which is connected to a neutral point of the motor 8 by means of the relay, which may be provided in a housing of the reduction gear in the electric drive assembly 100. The input end of the second positive copper series 313 is connected to the output end of the positive electrode of the battery pack 300, and the output end of the second positive copper series 313 and the input end of the positive motor copper series 322 can be connected by welding, bolting, or similar means.The input end of the negative induction copper series 314 is connected to the output end of the negative electrode of the battery pack 300, and the output end of the negative induction copper series 314 can be connected to the input end of the negative electrode of the negative copper series 323 of the capacitor assembly 32 by welding or screwing or the like.

[0026] Fig. Figure 4 shows a schematic representation of the structure of the filter unit from another view according to some embodiments of the present application; Fig. Figure 6 shows a schematic representation of the partial structure of a capacitor assembly according to some embodiments of the present application;

[0027] As in the Fig. 4 and Fig. As shown in Figure 6, in some embodiments the capacitor assembly 32 further comprises a first X-capacitor 324a and a second X-capacitor 324b, wherein the first X-capacitor 324a is connected to the positive reinforcing copper series 321 and the negative copper series 323 respectively, while the second X-capacitor 324b is connected to the positive motor copper series 322 and the negative copper series 323 respectively.

[0028] The first X-capacitor 324a and the second X-capacitor 324b can be extended to form pins. These pins are then welded to the positive amplifying copper series 321, the positive motor copper series 322, and the negative copper series 323, respectively, to establish an electrical connection. The first X-capacitor 324a and the second X-capacitor 324b are power supply capacitors for electromagnetic interference (EMI) suppression and can be used in power supply soft circuits, EMI filters, spark suppression circuits, and the like to ensure that the capacitor assembly 32 meets EMC (electromagnetic compatibility) requirements.

[0029] In some embodiments, the capacitor assembly 32 further comprises a first Y-capacitor 325a and a second Y-capacitor 325b or a third Y-capacitor 325c, wherein the first Y-capacitor 325a is connected to the housing body 10 or the negative copper row 323, respectively, wherein the second Y-capacitor 325b is connected to the housing body 10 or the positive reinforcing copper row 321, respectively, and wherein the third Y-capacitor 325c is connected to the housing body 10 or the positive motor copper row 322.

[0030] Fig. Figure 7 shows a schematic representation of the structure of a capacitor assembly according to some other embodiments of the present application.

[0031] As in Fig. As shown in Figure 7, the capacitor assembly 32 in some other embodiments further comprises a first Y-capacitor 325a, a second Y-capacitor 325b and a third Y-capacitor 325c, wherein the first Y-capacitor 325a is connected to the housing body 10 or the negative copper row 323, respectively, wherein the second Y-capacitor 325b is connected to the housing body 10 or the positive reinforcing copper row 321, respectively, and wherein the third Y-capacitor 325c is connected to the housing body 10 or the positive motor copper row 322.

[0032] The first Y-capacitor 325a, the second Y-capacitor 325b, or the third Y-capacitor 325c has a filtering effect by being connected to the housing body 10 for grounding. The number of Y-capacitors can be two, i.e., including the first Y-capacitor 325a and the second Y-capacitor 325b or the third Y-capacitor 325c; or the number can be three, including the first Y-capacitor 325a, the second Y-capacitor 325b, and the third Y-capacitor 325c. In comparison to the prior art, where two Y-capacitors must be provided on the motor controller and two Y-capacitors on the amplification module, this embodiment reduces the number of Y-capacitors, further reduces the amount of material, improves the power density of the product, makes the overall size more compact, and reduces the space requirement for the entire vehicle assembly.

[0033] As in the Fig. 4 and Fig. As shown in Figure 6, the capacitor assembly 32 in some embodiments further comprises a first voltage-regulating capacitor 326a, wherein the first voltage-regulating capacitor 326a is connected to the positive motor copper series 322 or the negative copper series 323 of the motor. The first voltage-regulating capacitor 326a comprises a first surface 327a and a second surface 327b, which are arranged opposite each other, and a side circumference that is connected to the first surface 327a and the second surface 327b, wherein the second surface 327b faces the housing body 10, wherein the first surface 327a and the second surface 327b are both metal surfaces, and wherein the side circumference is an insulating surface. The positive motor copper series 322 is welded to the first surface 327a of the first voltage regulating capacitor 326a, and the negative copper series 323 is welded to the second surface 327b of the first voltage regulating capacitor 326a.The first voltage regulating capacitor 326a is a voltage regulating capacitor of the motor controller and has a filtering effect.

[0034] In some embodiments, a plurality of the first voltage-regulating capacitors 326a are provided, wherein a plurality of the first voltage-regulating capacitors 326a are arranged along a first direction X to form a voltage-regulating capacitor group, wherein an inductance group 31 and the voltage-regulating capacitor group are arranged along a second direction Y, wherein the first direction X and the second direction Y intersect.

[0035] Since the capacitance tolerance of the motor controller generally needs to be large, increasing the number of the first voltage-regulating capacitors 326a can increase the capacitance tolerance of the motor controller. The inductor group 31 and the voltage-regulating capacitor group are arranged along the second direction Y. By arranging the voltage-regulating capacitor group and the inductor group 31 in a spaced-apart row, the space occupied by the filter unit 30 along the first direction X can be reduced, and the space of the entire vehicle can be used efficiently, resulting in a more compact overall vehicle design.

[0036] Fig. Figure 8 shows a schematic representation of the structure of a positive motor copper series according to some embodiments of the present application.

[0037] As in Fig. As shown in Figure 8, the positive motor copper series 322 optionally comprises a first weld side 322a, a first bearing side 322b, which are provided opposite each other, and a first connecting side 322c, which is connected to the first weld side 322a and the first bearing side 322b respectively, and the first weld side 322a is welded to the first surface 327a of the first voltage regulating capacitor 326a, and an end of the first weld side 322a facing away from the first connecting side 322c is bent to form an output end of the positive motor copper series 322; the first connecting side 322c extends in a direction facing the second X-capacitor 324b and the third Y-capacitor 325c to connect the second X-capacitor 324b and the third Y-capacitor 325c.The first contact side 322b rests against the housing body 10 to conduct the heat of the filter unit 30 through the housing body 10 to the outside, thereby reducing the temperature of the filter unit and improving the service life of the filter unit.

[0038] Fig. Figure 9 shows a schematic representation of the structure of a negative copper series according to some embodiments of the present application.

[0039] In some embodiments, at least two of the positive reinforcing copper series 321, the positive motor copper series 322 and the negative copper series 323 are connected to each other to form a receiving space, wherein at least a part of the capacitor assembly is located in the receiving space.

[0040] As in Fig. As shown in Figure 9, the negative copper array 323 comprises a second weld side 323a and a second connection side 323b, which are connected together, with the second weld side 323a being welded to the second surface 327b of the first voltage-regulating capacitor 326a and bearing against the first bearing side 322b, the second connection side 323b and the first connection side 322c each bearing against opposite sides of the circumference of the first voltage-regulating capacitor 326a, and one end of the second connection side 323b, facing away from the second weld side 323a, is bent to form an output end of the negative copper array 323. The positive motor copper array 322 and the negative copper array 323 are connected together to form a receiving space, and a plurality of the first voltage-regulating capacitors 326a are received in the receiving space, thereby improving the structural stability of the capacitor assembly 32.

[0041] In some embodiments, the capacitor assembly 32 further comprises a second voltage-regulating capacitor 326b, wherein the second voltage-regulating capacitor 326b is connected to both the positive amplifying copper series 321 and the negative copper series 323. The second voltage-regulating capacitor 326b is a voltage-regulating capacitor of the amplification module and has a filtering effect. Since the capacitance requirement of the amplification module is small compared to the capacitance requirement of the motor controller, only one second voltage-regulating capacitor 326b can be provided.

[0042] Fig. Figure 10 shows a schematic representation of the structure of a positive reinforcing copper series according to some embodiments of the present application.

[0043] As in the Fig. 4, Fig. 5, Fig. 6 to Fig. 7 and Fig. As shown in Figure 10, the second voltage-regulating capacitor 326b is optionally provided along the first direction X next to the first voltage-regulating capacitor 326a and forms a voltage-regulating capacitor group together with the first voltage-regulating capacitor 326a. The positive reinforcing copper series 321 comprises a third weld side 321a and a second bearing side 321b, which are provided opposite each other, and a third connecting side 321c, which is connected to the third weld side 321a and the second bearing side 321b, respectively. The third weld side 321a is welded to the second voltage-regulating capacitor 326b, and the third weld side 321a is bent in a direction away from the third connecting side 321c to form an output end of the positive reinforcing copper series 321.Opposite surfaces of the second contact side 321b are in contact with the second voltage regulating capacitor 326b and the housing body 10, and heat generated during the operation of the second voltage regulating capacitor 326b can be transferred through the second contact side 321b to the housing body 10 and conducted through the housing body 10 to the outside of the filter unit, thereby reducing the temperature of the filter unit and improving the service life of the filter unit.

[0044] The first voltage regulating capacitor 326a and the second voltage regulating capacitor 326b are arranged together in the housing body 10 of the motor controller and are potted with an epoxy resin that has a solid and insulating effect.

[0045] As in the Fig. 11, Fig. 12, Fig. 13 to Fig. Figure 14 shows an embodiment of the present application comprising an electric drive assembly comprising a housing 1, a cavity 2, a low-voltage input interface 3, a high-voltage output interface 4, a filter unit 30, a switch unit 6 and an electronic control unit 7, wherein the cavity 2 is provided in the housing 1, wherein the low-voltage input interface 3 is provided on the housing 1, wherein the high-voltage output interface 4 is provided on the housing 1, wherein the filter unit 30 is provided in the cavity 2, wherein the input end of the filter unit 30 is connected to the low-voltage input interface 3, wherein the switch unit 6 is provided in the cavity 2, wherein the input end of the switch unit 6 is connected to the output end of the filter unit 30, and wherein the electronic control unit 7 is provided in the cavity 2.wherein the input end of the electronic control unit 7 is connected to the output end of the switch unit 6, while the output end of the electronic control unit 7 is connected to the high-voltage output interface 4.

[0046] It is understood that the electrical energy input to the low-voltage input interface 3 passes through the amplification module, which in turn consists of the filter unit 30, the switch unit 6, and the electronic control unit 7, and is output from the high-voltage output interface 4. The electrical energy can be filtered and amplified as it passes through the filter unit 30, the switch unit 6, and the electronic control unit 7. As a result, when the electric drive assembly is applied to the battery pack system, it is possible to achieve high-voltage charging of the battery pack 300 via the low-voltage charging station, thus meeting the usage requirements.

[0047] Since the filter unit 30, the switch unit 6, and the electronic control unit 7 are all housed in cavity 2, and the low-voltage input interface 3 and the high-voltage output interface 4 are all located on the housing 1, the amplification module is effectively integrated into the electrical drive assembly. This not only significantly reduces the volume of the amplification module and the electrical drive assembly as a whole, thus avoiding the space constraints caused by a separate arrangement of the amplification module and simplifying the vehicle's interior design, but also allows the amplification module to reuse the wiring, tubing, fixings, etc., of the electrical drive assembly and eliminates the need for the two high-voltage cable runs between the amplification module and the electrical drive assembly, thus reducing the use of wiring, tubing, fixings, etc.This reduces the overall material costs and improves the overall efficiency of the installation.

[0048] Since the amplification module is integrated into the electric drive assembly, it can be protected by housing 1 in the event of a collision or other accident, thus reducing the risk of damage. At the same time, the elimination of the two high-voltage cable strands between the amplification module and the electric drive assembly avoids safety problems caused by damage to these two strands, effectively improving overall safety.

[0049] It should be noted that the filter unit 30 can filter out interference waves in the electrical energy, resulting in a smoother waveform. This ensures stable amplification of the electrical energy and, consequently, stable charging of the battery pack 300 when the amplification module is connected to the battery pack 300 system. The specific type of filter unit 30 can be configured according to actual requirements, and there are no limitations in this regard; for example, the filter unit 30 can consist of capacitors, inductors, and other components.

[0050] The switch unit 6 is used for the on / off control of the path, and the specific type of switch unit 6 can be set according to the actual needs without restriction, and for example, the switch unit 6 can include a first switch and a second switch, the first switch is used for the on / off control of the positive electrode path of the electrical energy, and the second switch is used for the on / off control of the negative electrode path of the electrical energy.The first switch and the second switch can be controlled by a control board, and the control board is controlled by the electronic control unit 7, whereby both the first switch and the second switch can contain a plurality of thyristors, which not only facilitates the on-off function of the first switch and the second switch, but also the rectification of electrical energy using the thyristors.

[0051] The electronic control unit 7 is used to control the motor 8 and to amplify the electrical energy. The specific type of electronic control unit 7 can be selected according to the actual requirements, and there are no restrictions in this regard. For example, the electronic control unit 7 includes a power module. When the power module is used in a forward direction, it can convert the direct current from the battery pack 300 into alternating current for use by the motor 8. When the power module is used in a reverse direction, it can amplify the electrical energy supplied by the switch unit 6 and then transfer it to the battery pack 300.Among them, the specific type of power module can be set according to the actual requirements, and no restriction is placed on it; for example, the power module can be an IGBT (Insulated Gate Bipolar Transistor) power module.

[0052] The low-voltage input interface 3 is used for connecting a low-voltage cable harness, and the high-voltage output interface 4 is used for connecting a high-voltage cable harness. The specific types of the low-voltage input interface 3 and the high-voltage output interface 4 can be configured according to actual needs, and there are no restrictions on this. For example, the low-voltage input interface 3 can include a positive low-voltage input interface and a negative low-voltage input interface, and the high-voltage output interface 4 can include a positive high-voltage output interface and a negative high-voltage output interface.

[0053] The housing 1 is used for the installation of devices such as the filter unit 30, the switch unit 6 and the electronic control unit 7 and for forming a protection for the devices such as the filter unit 30, the switch unit 6 and the electronic control unit 7, and the specific type of the housing 1 can be set up according to the actual needs, and no restriction is placed on it.

[0054] As in the Fig. 11, Fig. 12 and Fig. As shown in Figure 13, in some embodiments, the housing comprises a first section 101 and a second section 102, wherein the first section 101 is provided with a first recess 201, wherein the filter unit 30 and the switch unit 6 are each provided in the first recess 201, wherein the low-voltage input interface 3 is provided on the first section 101, wherein the second section 102 is provided with a second recess 202, wherein the electronic control unit 7 is provided in the second recess 202, wherein the high-voltage output interface 4 is provided on the second section 102, wherein the first section 101 is connected to the second section 102, wherein the first recess 201 and the second recess 202 are provided opposite each other and together form the cavity 2.

[0055] It is understood that the first section 101 and the second section 102 form a structure of the housing 1, making the housing 1 easy to disassemble and install, and more convenient for overhaul and maintenance. At the same time, the first recess 201 and the second recess 202 are designed such that the first section 101 and the second section 102 form a cavity 2 within the first section 101 and the second section 102, which accommodates the filter unit 30, the switch unit 6, and the electronic control unit 7. This ensures that the filter unit 30, the switch unit 6, and the electronic control unit 7 can be integrated compactly and efficiently into the housing 1, thus achieving highly efficient integration of the amplification module into the electric drive assembly.This avoids the space requirement of the reinforcement module, improves the safety of the reinforcement module, reduces the cost of the reinforcement module and improves the efficiency of the installation of the reinforcement module.

[0056] It should be noted that the connection method between the first section 101 and the second section 102 can be adjusted according to actual needs and there is no restriction in this regard, and the connection between the first section 101 and the second section 102 can be realized by means of screw fastening, snap fastening and the like.

[0057] The specific types of the first recess 201 and the second recess 202 can be adjusted according to actual needs, and there is no restriction in this regard.

[0058] As in the Fig. 11 and Fig. As shown in Figure 12, in some embodiments, the first recess comprises a first receiving groove 2011 and a second receiving groove 2012, wherein the first receiving groove 2011 is provided on the first section 101, wherein the filter unit 30 is provided in the first receiving groove 2011, wherein the second receiving groove 2012 is provided on the first section 101, wherein the second receiving groove 2012 is provided adjacent to the first receiving groove 2011 and is connected to the first receiving groove, and wherein the switch unit 6 is provided in the second receiving groove 2012.

[0059] It is understood that the first mounting groove 2011 is provided to create a space within the first section 101 to accommodate the filter unit 30, and the second mounting groove 2012 is provided to create a space within the first section 101 to accommodate the switch unit 6, thus enabling the filter unit 30 and the switch unit 6 to be stably integrated into the housing 1. Since the second mounting groove 2012 and the first mounting groove 2011 are positioned side by side and connected to each other, the distribution of the filter unit 30 and the switch unit 6 within the housing 1 is more compact and efficient, and the connection is more convenient, thereby ensuring the efficient integration of the amplification module into the electrical drive assembly.This avoids the space requirement of the reinforcement module, improves the safety of the reinforcement module, reduces the cost of the reinforcement module and improves the efficiency of the installation of the reinforcement module.

[0060] It should be noted that the specific types of the first intake ut 2011 and the second intake ut 2012 can be adjusted according to actual needs, and there are no restrictions in this regard.

[0061] The manner in which the filter unit 30 is provided in the first recess 2011, the manner in which the switch unit 6 is provided in the second recess 2012, and the manner in which the electronic control unit 7 is provided in the second recess 202 can be adjusted according to actual needs, and there is no restriction thereon.

[0062] As in the Fig. As shown in Figure 11, in some embodiments, the housing comprises a plurality of first support columns 103, a plurality of second support columns 104, and a plurality of third support columns (not shown), wherein a plurality of the first support columns 103 are provided successively in the first receiving groove 2011 along a circumferential direction of the first receiving groove 2011, wherein the filter unit 30 is provided on a plurality of the first support columns 103, wherein a plurality of the second support columns 104 are provided successively in the second receiving groove 2012 along a circumferential direction of the second receiving groove 2012, wherein the switch unit 6 is provided on a plurality of the second support columns 104, wherein a plurality of the third support columns are each provided in the second recess 202, and wherein the electronic control unit 7 is provided on a plurality of the third support columns.

[0063] It is understood that the number of first support columns 103 can be adjusted by the length of the number of first support columns 103 when installing the filter unit 30 in the first receiving groove 2011 in order to adapt the filter unit 30 to the uneven ground structure of the first receiving groove 2011, to ensure that the filter unit 30 can be stably installed in the first receiving groove 2011, and to ensure the stable operation of the filter unit 30.

[0064] The multiple second support columns 104 can be adjusted by the length of the multiple second support columns 104 when installing the switch unit 6 in the second receiving groove 2012, in order to adapt the switch unit 6 to the uneven floor structure of the second receiving groove 2012, to ensure that the switch unit 6 can be stably installed in the second receiving groove 2012, and to ensure the stable operation of the switch unit 6.

[0065] The number of third support columns can be adjusted by the length of the number of third support columns 103 when installing the electronic control unit 7 in the second recess 202, in order to adapt the electronic control unit 7 to the uneven floor structure of the second recess 202, to ensure that the electronic control unit 7 can be stably installed in the second recess 202, and to ensure the stable operation of the electronic control unit 7.

[0066] At the same time, by adjusting the multitude of first support columns 103, the multitude of second support columns 104 and the multitude of third support columns, it is also easy to control the relative positions between the filter unit 30, the switch unit 6 and the electronic control unit 7, making it more convenient to connect the filter unit 30, the switch unit 6 and the electronic control unit 7.

[0067] It should be noted that the specific types of the first support column 103, the second support column 104 and the third support column 7 can be adjusted according to actual needs, and there are no restrictions in this regard.

[0068] The manner in which the filter unit 30 is provided on the first support column 103, the manner in which the switch unit 6 is provided on the second support column 104, and the manner in which the electronic control unit 7 is provided on the third support column can be adjusted according to the actual requirements, and there is no restriction in this regard. For example, the first support column 103, the second support column 104, and the third support column are all provided with threaded holes; the filter unit 30 is attached to the plurality of the first support columns 103 by a plurality of screws; the switch unit 6 is attached to the plurality of the second support columns 104 by a plurality of screws; and the electronic control unit 7 is attached to the plurality of the third support columns by a plurality of screws.

[0069] As in the Fig. 11, Fig. 12 and Fig. As shown in Figure 13, in some embodiments, the electrical drive assembly further comprises a motor 8, wherein the motor 8 is provided at an end of the first section 101 facing away from the second section 102, wherein the motor 8 has a neutral point interface 801 and a three-phase interface 802, wherein the neutral point interface 801 and the three-phase interface 802 are each provided in the first receiving groove 2011, wherein an output end of the switch unit 6 is connected to the neutral point interface 801, and wherein an input end of the electronic control unit 7 is connected to the three-phase interface 802.

[0070] It is understood that, since the output end of the switch unit 6 is connected to the neutral point interface 801 and the input end of the electronic control unit 7 is connected to the three-phase interface 802, the switch unit 6 is able to utilize the three-phase winding of the motor 8 as a conductor to the electronic control unit 7. This allows the amplification module to effectively reuse the three-phase winding of the motor 8, avoid the use of two high-voltage cable strands between the amplification module and the electronic control unit 7, achieve efficient integration of the amplification module into the electrical drive assembly, and thereby reduce the cost of the amplification module, improve the installation efficiency of the amplification module, and effectively enhance the safety of the amplification module.

[0071] When the motor 8 is in operation, the power module of the electronic control unit 7 converts the electrical energy of the battery pack 300 into alternating current and supplies it to the three-phase winding of the motor 8. When the motor 8 is not in operation, the power module of the electronic control unit 7 amplifies the electrical energy and supplies it to the battery pack 300.

[0072] The three-phase interface 802 comprises three interfaces, the three interfaces are connected to the three windings of the three-phase winding, and the neutral point interface 801 is simultaneously connected to the three windings of the three-phase winding.

[0073] As in the Fig. 11 and Fig. As shown in Figure 12, in some embodiments, the housing 1 further comprises a plurality of ribbed plates 105, wherein the ribbed plates 105 are provided in the first receiving groove 2011, wherein the plurality of ribbed plates 105 divides the first receiving groove 2011 into a plurality of insulating grooves 20111, wherein the filter unit 30, the neutral point interface 801 and the three-phase interface 802 are provided successively in the plurality of insulating grooves 20111.

[0074] It is understood that the ribbed plate 105 is not only able to form a large number of insulating grooves 20111, so that the filter unit 30, the neutral point interface 801 and the three-phase interface 802 can be isolated from each other, thus preventing circuit failures such as short circuits, but is also able to reinforce the structure of the housing 1, so that the housing 1 has greater strength with less material usage.

[0075] It should be noted that the specific type of ribbed plate 105 can be adjusted according to actual needs and there is no restriction on this.

[0076] The number of ribbed plates 105 can be adjusted according to actual needs, and there is no limitation in this respect. For example, there can be four ribbed plates 105, and these four ribbed plates 105 form five insulating grooves 20111 within the first receiving groove 2011, and the three interfaces of the filter unit 30, the neutral point interface 801, and the three-phase interface 802 are each provided within the five insulating grooves 20111. Meanwhile, the ribbed plates 105 can also be provided in other areas of the housing 1 to increase the strength of the housing 1.

[0077] As in the Fig. 1 and Fig. As shown in Figure 2, in some embodiments, the filter unit 30 comprises an adapter plate 501, wherein the adapter plate 501 is provided at one end of the first receiving groove 2011 facing one of the second receiving grooves 2012, wherein a first end of the adapter plate 501 is connected to an output end of the switch unit 6, while a second end of the adapter plate 501 is connected to the neutral point interface 801.

[0078] It is understood that the connection between the output end of the switch unit 6 and the neutral point interface 801 can be achieved by means of the adapter plate 501. This avoids the need for additional connecting elements such as wires inside the housing 1 and ensures a stable connection between the switch unit 6 and the neutral point interface 801, while reducing the cable harness. Simultaneously, by positioning the adapter plate 501 at one end of the first receiving groove 2011 facing the second receiving groove 2012, the adapter plate 501 and the switch unit 6 are arranged more compactly within the housing 1. This not only facilitates the connection of the adapter plate 501 to the output end of the switch unit 6 but also enables efficient integration of the amplification module into the electrical drive assembly.As a result, the cost of the reinforcement module is effectively reduced and the installation efficiency of the reinforcement module is improved by adjusting the adapter plate 501.

[0079] It should be noted that the specific type of adapter plate 501 can be selected according to actual needs, and there is no limit to the number of possible options. For example, adapter plate 501 could be a copper series mounted on a bracket of filter unit 30.

[0080] As in the Fig. 11 and Fig. As shown in Figure 12, in some embodiments, the input end of the switch unit 6 is located at an end of the filter unit 30 facing away from the bottom of the first receiving groove 2011, while the output end of the switch unit 6 is located at an end of the adapter plate 501 facing away from the bottom of the first receiving groove 2011, while the second end of the adapter plate 501 is located at an end of the neutral point interface 801 facing away from the bottom of the first receiving groove 2011.

[0081] It is understood that, since the input end of the switch unit 6 is located at an end of the output end of the filter unit 30 facing away from the bottom of the first receiving groove 2011, the input end of the switch unit 6 and the output end of the filter unit 30 are stacked in the housing 1 in a direction from the opening of the first receiving groove 2011 to the bottom of the groove. This makes the arrangement of the switch unit 6 and the filter unit 30 within the housing 1 more compact, which in turn facilitates the connection between the input end of the switch unit 6 and the output end of the filter unit 30.

[0082] Since the output end of the switch unit 6 is located at an end of the first end of the adapter plate 501 facing away from the bottom of the first receiving groove 2011, and the second end of the adapter plate 501 is located at an end of the neutral point interface 801 facing away from the bottom of the first receiving groove 2011, the output end of the switch unit 6, the adapter plate 501, and the neutral point interface 801 are stacked in the housing 1 in a direction from the opening of the first receiving groove 2011 to the bottom of the groove. This makes the arrangement of the switch unit 6, the adapter plate 501, and the neutral point interface 801 within the housing 1 more compact, which in turn facilitates the connection between the output end of the switch unit 6 and the neutral point interface 801.

[0083] As a result, the stacked arrangement of the switch unit 6, the filter unit 30 and the adapter plate 501 ensures efficient integration of the amplification module into the electrical drive assembly, which in turn reduces the cost of the amplification module and improves the installation efficiency of the amplification module.

[0084] It should be noted that the electrical connection between the devices in housing 1 can be adjusted according to actual needs, and there is no restriction on this. For example, the electrical connection between the input end of the switch unit 6 and the output end of the filter unit 30, between the output end of the switch unit 6 and the first end of the adapter plate 501, between the second end of the adapter plate 501 and the neutral point interface 801, between the input end of the filter unit 30 and the low-voltage input interface 3, between the three-phase interface 802 and the electronic control unit 7, between the electronic control unit 7 and the high-voltage output interface 4, and between the other devices can be made by screwing, welding, and the like.

[0085] As in the Fig. 11, Fig. 12 and Fig. As shown in Figure 13, in some embodiments, the electric drive assembly further comprises a reduction gear 9, wherein the reduction gear 9 is provided at an end of the first section 101 facing away from the second section 102, wherein the motor 8 is provided at an end of the reduction gear 9 facing away from the first section 101, and wherein an output shaft of the motor 8 is connected to an input shaft of the reduction gear 9, while an output shaft of the reduction gear 9 is located on one side of the housing 1;wherein the housing 1 is provided with a deflection notch 106 on a side facing the output shaft of the reduction gear 9, wherein the first receiving groove 2011 is provided on a side of the first section 101 facing away from the deflection notch 106, while the second receiving groove 2012 is provided on a side of the first section 101 facing towards the deflection notch 106, wherein the low-voltage input interface 3 is provided on a side of the first section 101 facing away from the deflection notch 106, while the high-voltage output interface 4 is provided on a side of the second section 102 facing towards the deflection notch 106.

[0086] It is understood that the output shaft of the motor 8 is connected to the input shaft of the reduction gear 9, so that when the electronic control unit 7 drives the output shaft of the motor 8 to rotate, the input shaft of the reduction gear 9 can rotate synchronously with the output shaft of the motor 8 and drive the output shaft of the reduction gear 9 to rotate after the torque of the reduction gear 9 has been converted, thus achieving the output power of the electric drive assembly.

[0087] By arranging the output shaft of the reduction gear 9 on one side of the housing 1, the structure of the electric drive assembly is made more compact and efficient, thereby reducing the space required for the electric drive assembly and improving the efficiency of its installation. At the same time, the arrangement of the clearance notch 106 avoids interference problems between the housing 1 and the output shaft of the reduction gear 9, thus ensuring stable operation of the electric drive assembly.

[0088] By arranging the first receiving groove 2011 on the side of the first section 101 facing away from the avoidance notch 106, the filter unit 30 is turned away from the avoidance notch 106, and by arranging the second receiving groove 2012 on the side of the first section 101 facing the avoidance notch 106, the switch unit 6 is turned towards the avoidance notch 106. By arranging the low-voltage input interface 3 on the side of the first section 101 facing away from the bypass notch 106, the low-voltage input interface 3 is located near the filter unit 30, and by arranging the high-voltage output interface 4 on the side of the second section 102 facing the bypass notch 106, the high-voltage output interface 4 is located near the electronic control unit 7, while at the same time being located on both sides of the housing 1 with the low-voltage input interface 3.This makes the relative positions between the filter unit 30, the switch unit 6, the high-voltage output interface 4 and the low-voltage input interface 3 more compact and sensible, ensuring efficient integration of the amplification module into the electrical drive assembly, thereby reducing the cost of the amplification module and improving the installation efficiency of the amplification module.

[0089] It should be noted that the reduction gear 9 uses a transmission between the gears to achieve torque conversion, and the specific type of reduction gear 9 can be adjusted according to actual needs, and there are no restrictions in this regard.

[0090] The specific size of the escape notch 106 can be adjusted according to actual needs, and there is no restriction in this regard, whereby due to the arrangement of the escape notch 106 and the switch unit 6 on the side of the housing 1 facing the escape notch 106, a certain escape structure should also be arranged on the switch unit 6 in order to adapt to the structure of the housing 1.

[0091] As in the Fig. 11, Fig. 12 and Fig. As shown in Figure 13, in some embodiments, the electrical drive assembly further comprises a coolant inlet interface 110 and a coolant outlet interface 11, wherein the coolant inlet interface 110 and the coolant outlet interface 11 are each provided on the housing 1, wherein the switch unit 6 comprises a first heat absorption path 601, wherein the inlet end of the first heat absorption path 601 is connected to the coolant inlet interface 110, wherein the electronic control unit 7 comprises a second heat absorption path 701, wherein the inlet end of the second heat absorption path 701 is connected to the outlet end of the first heat absorption path 601, while the outlet end of the second heat absorption path 701 is connected to the coolant outlet interface 11.

[0092] It is understood that the coolant enters from the coolant inlet interface 110 and successively passes through the first heat absorption path 601 and the second heat absorption path 701, before being discharged from the coolant outlet interface 11. As the coolant flows through the first heat absorption path 601 and the second heat absorption path 701, it is able to dissipate heat from the switch unit 6 and the electronic control unit 7, thereby cooling these components and ensuring their stable operation.

[0093] Among other things, by connecting the inlet end of the first heat absorption path 601 to the coolant inlet interface 110 and by connecting the outlet end of the first heat absorption path 601 to the second heat absorption path 701, the amplification module utilizes the cooling circuit within the electric drive assembly for cooling. By avoiding the installation of an additional cooling circuit while efficiently integrating the amplification module into the electric drive assembly, the space requirement of the amplification module is effectively reduced, the cost of the amplification module is lowered, and the efficiency of the amplification module installation is improved.

[0094] By attaching the coolant inlet interface 110 and the coolant outlet port 11 to the housing 1, the first heat absorption path 601 and the second heat absorption path 701 can be conveniently connected to the external piping, effectively improving the installation efficiency of the reinforcement module.

[0095] It should be noted that the coolant is used to absorb heat in the first heat absorption path 601 and in the second heat absorption path 701, and a specific type of coolant can be selected according to the actual needs, and there is no restriction on this, for example the coolant can be cooling water.

[0096] The first heat absorption path 601 is used to allow the coolant to pass through, and the specific type of the first heat absorption path 601 can be adjusted according to the actual requirements; there is no limitation on this. Among other things, the length of the first heat absorption path 601 in the switch unit 6 can be increased by bending, routing, or similar means to improve the cooling efficiency of the coolant to the switch unit 6.

[0097] The second heat absorption path 701 is used to allow the coolant to pass through, and the specific type of the second heat absorption path 701 can be adjusted according to the actual requirements; there is no limitation on this. Among other things, the length of the second heat absorption path 701 can be increased in the electronic control unit 7 by bending, shunting, or similar means to increase the cooling efficiency of the coolant to the electronic control unit 7.

[0098] The coolant inlet interface 110 and the coolant outlet interface 11 are used for connection to an external pipeline, and the specific types of the coolant inlet interface 110 and the coolant outlet interface 11 can be set according to actual needs, and there is no restriction on this.

[0099] As in Fig. As shown in Figure 15, an embodiment of the present application further provides a battery system comprising a battery pack 300 and an electrical drive assembly according to the above embodiment of the present application, wherein the battery pack 300 comprises a low-voltage output interface 121 and a high-voltage input interface 122, wherein the low-voltage input interface 3 of the electrical drive assembly is connected to the low-voltage output interface 121, while the high-voltage output interface 4 of the electrical drive assembly is connected to the high-voltage input interface 122.

[0100] It is understood that the battery pack 300 transmits low-voltage electrical energy to the electrical drive assembly via the connection between the low-voltage output interface 121 and the low-voltage input interface 3. The low-voltage electrical energy is output to the battery pack 300 via the connection between the high-voltage output interface 4 and the high-voltage input interface 122, after passing sequentially through the amplification module formed by the filter unit 30, the switch unit 6, and the electronic control unit 7. The low-voltage electrical energy can be filtered and amplified as it passes through the filter unit 30, the switch unit 6, and the electronic control unit 7.By discontinuing the electric drive assembly, it is therefore possible to realize the high-voltage charging of the battery pack 300 with the high voltage via a low-voltage charging station in order to meet the usage requirements.

[0101] Since the filter unit 30, the switch unit 6, and the electronic control unit 7 are all housed in cavity 2, and the low-voltage input interface 3 and the high-voltage output interface 4 are all located on the housing 1, the amplification module is effectively integrated into the electrical drive assembly. This not only significantly reduces the volume of the amplification module and the electrical drive assembly as a whole, thus avoiding the space constraints caused by a separate arrangement of the amplification module and simplifying the vehicle's interior design, but also allows the amplification module to reuse the wiring, tubing, fixings, etc., of the electrical drive assembly and eliminates the need for the two high-voltage cable runs between the amplification module and the electrical drive assembly, thus reducing the use of wiring, tubing, fixings, etc.This reduces the overall material costs and improves the overall efficiency of the installation.

[0102] Since the amplification module is integrated into the electric drive assembly, it can be protected by housing 1 in the event of a collision or other accident, thus reducing the risk of damage. At the same time, the elimination of the two high-voltage cable strands between the amplification module and the electric drive assembly avoids safety problems caused by damage to these two strands, effectively improving overall safety.

[0103] It should be noted that the specific type of system of the battery pack 300 can be adjusted according to actual needs, and there is no restriction in this regard.

[0104] As in Fig. As shown in Figure 14, an embodiment of the present application further provides a vehicle comprising a system of the battery pack 300 according to the embodiment of the present application.

[0105] It is understood that the battery pack 300 transmits low-voltage electrical energy to the electrical drive assembly via the connection between the low-voltage output interface 121 and the low-voltage input interface 3. The low-voltage electrical energy is output to the battery pack 300 via the connection between the high-voltage output interface 4 and the high-voltage input interface 122, after passing sequentially through the amplification module formed by the filter unit 30, the switch unit 6, and the electronic control unit 7. The low-voltage electrical energy can be filtered and amplified as it passes through the filter unit 30, the switch unit 6, and the electronic control unit 7.By discontinuing the electric drive assembly, it is therefore possible to realize the high-voltage charging of the battery pack 300 with the high voltage via a low-voltage charging station in order to meet the usage requirements.

[0106] Since the filter unit 30, the switch unit 6, and the electronic control unit 7 are all housed in cavity 2, and the low-voltage input interface 3 and the high-voltage output interface 4 are all located on the housing 1, the amplification module is effectively integrated into the electrical drive assembly. This not only significantly reduces the volume of the amplification module and the electrical drive assembly as a whole, thus avoiding the space constraints caused by a separate arrangement of the amplification module and simplifying the vehicle's interior design, but also allows the amplification module to reuse the wiring, tubing, fixings, etc., of the electrical drive assembly and eliminates the need for the two high-voltage cable runs between the amplification module and the electrical drive assembly, thus reducing the use of wiring, tubing, fixings, etc.This reduces the overall material costs and improves the overall efficiency of the installation.

[0107] Since the amplification module is integrated into the electric drive assembly, it can be protected by housing 1 in the event of a collision or other accident, thus reducing the risk of damage. At the same time, the elimination of the two high-voltage cable strands between the amplification module and the electric drive assembly avoids safety problems caused by damage to these two strands, effectively improving overall safety.

[0108] It should be noted that the specific type of vehicle can be set according to actual needs, and there is no restriction in this regard; for example, the vehicle can be a fuel-powered vehicle, an electric vehicle, and the like.

[0109] When the electric drive assembly is installed in the vehicle, the electric drive assembly can be located at the rear end of the vehicle's subframe, and because the reinforcement module is integrated into the electric drive assembly, it is less likely that the reinforcement module will be damaged if the vehicle is subjected to a rear-end collision.

[0110] The electric drive assembly can further comprise a first bracket and a second bracket, the first bracket being provided at an end of the motor 8 facing away from the reduction gear 9, the first bracket being provided with a first installation hole at an end of the first bracket facing away from the motor 8, and the second bracket being provided at an end of the housing 1 facing away from the reduction gear 9. The second bracket is provided with a second installation hole at the end of the second bracket facing away from the housing 1, the first bracket and the second bracket being arranged on a side of the housing 1 facing away from the deflection notch 106.

[0111] Consequently, the installation of the electric drive unit in the vehicle is facilitated by the presence of the first and second mounting brackets, as well as the pre-drilled mounting holes in both brackets, effectively increasing the efficiency of the installation. Among other things, the pre-drilled mounting holes can be used for mounting a suspension bracket when the electric drive unit is mounted on the subframe.

[0112] The battery pack 300 has a charging port 200, which can be connected to an external power source. This external power source can be a charging device, such as a charging station, mains power, or similar. The charging station can be connected to the charging port 200 using a charging cable to connect it to the vehicle. The battery pack 300 can output a suitable battery voltage to power the vehicle's motor 8, thus propelling the vehicle, and can also power other vehicle components, such as a screen, an electrically operated seat, a sunroof, and other onboard devices.

[0113] The three-phase output end of the electronic control unit 7 is connected to the three-phase input end of the motor 8. The filter unit 30 and the electronic control unit 7 receive the battery voltage output by the charging unit and convert the DC voltage into an AC voltage via the rectifier circuit in the electronic control unit 7. The AC voltage is then output to the three-phase input end of the motor 8 to provide a three-phase AC voltage for the motor 8. The positive amplification copper series 321 is the positive copper series of the amplification module, the positive motor copper series 322 is the positive copper series of the motor controller, and the amplification module and the motor controller share a negative copper series 323.During charging, the capacitor assembly 32 receives the charging voltage from the charging terminal 200, and the capacitor assembly 32, the electronic control unit 7 and the motor 8 act as an amplification module to increase the charging voltage and then charge the battery pack 300; when the battery pack 300 discharges the motor 8, the capacitor assembly 32 and the electronic control unit 7 act as motor controllers, and the motor 8 is controlled by the capacitor assembly 32 and the electronic control unit 7.By sharing a negative copper series between the amplification module and the motor controller, the integration of the motor controller capacitor and the amplification module capacitor into a single unit can be achieved in this embodiment, without having to build the capacitor structure of the amplification module separately, thereby reducing material and production costs, reducing the problem of electromagnetic radiation and line losses in the wiring harness, and reducing the space requirement of the entire vehicle as well as the production effort.

[0114] The inductor group 31 in the filter unit 30 performs filtering, oscillation, delay, notch filtering, etc., as well as signal filtration, noise filtering, current stabilization, and suppression of electromagnetic wave interference, etc. The inductor group 31 and the capacitor group 32 together form a filter unit 30. During charging, the filter unit 30 receives the charging voltage from the charging terminal 200, and the filter unit 30, the electronic control unit 7, and the motor 8 act as an amplification module to increase the charging voltage and then charge the battery pack 300. When the battery pack 300 discharges the motor 8, the filter unit 30 and the electronic control unit 7 act as a motor controller, and the motor 8 is controlled by the filter unit 30 and the electronic control unit 7.In this embodiment, not only is the capacitor of the amplification module integrated into the housing 10 of the motor controller, but also the coil of the amplification module and the coil of the motor controller are integrated into the housing 10, and the amplification module and the motor controller share a negative induction copper series of the inductance group 31, which saves the space requirement of the inductance group 31 as well as material costs, such as connection cable harnesses, and further reduces the space requirement of the entire vehicle.

[0115] In the description of the present application, it should be understood that the terms, e.g., "middle", "longitudinal", "transverse", "length", "width", "thickness", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "above", "below", "inside", "outside", "clockwise", "counterclockwise", "vertical", "radial", "circumferential", which indicate the orientation or positional relationship, are based on the orientation or positional relationship shown in the attached drawings, serve only for the sake of simplicity and to simplify the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation or be designed and operated with a particular orientation, and are therefore not to be understood as a limitation of the present application.

[0116] Furthermore, terms such as "first," "second," etc., serve only to describe the purpose and are not to be understood as indicating their relative importance or implicitly specifying the number of the technical features indicated. Consequently, features marked "first" or "second" may expressly or implicitly include at least one of these features. In the description of this application, "a plurality of" means at least two, e.g., two, three, etc., unless expressly defined otherwise.

[0117] In the present application, it should be noted that the terms, e.g., "mounted", "connected", "attached", are to be interpreted broadly, unless expressly stated otherwise and limited, e.g., as either a fixed connection, a detachable connection, or a connection in one piece; a mechanical connection or an electrical connection, or as being connected to one another; a direct connection or an indirect connection via an intermediate medium, or a connection within two elements, unless expressly stated otherwise. The specific meaning of the above terms in the present application is clear to a person competent in the field.

[0118] In the present application, the first feature being “above” or “below” the second feature can be a direct contact between the first and second features or an indirect contact between the first and second features via an intermediate medium, unless expressly provided and limited otherwise. Furthermore, the first feature being “above,” “above,” and “above” the second feature can mean that the first feature is located directly or obliquely above the second feature, or simply that the first feature is horizontally higher than the second feature. The first feature being “below” and “below” the second feature can mean that the first feature is located directly or obliquely below the second feature, or simply that the first feature is horizontally lower than the second feature.

[0119] In this application, the terms “an embodiment”, “some embodiments”, “example”, “specific example”, or “a particular example”, “an embodiment”, “some examples”, “exemplary”, “specific examples”, or “some examples” mean that certain features, structures, materials, or properties described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this description, the schematic expressions of the above terms need not refer to the same embodiments or examples. Furthermore, the described specific features, structures, materials, or properties may be combined appropriately in one or more embodiments.Furthermore, the person skilled in the art can combine different embodiments and features of different embodiments described in this description without contradicting each other.

[0120] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and are not to be understood as limiting the present application, and that changes, modifications, replacements and variations of the above embodiments by a person with ordinary technical knowledge are within the scope of protection of the present application. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 202310333085.4

[0001] CN 202310324658.7

[0001]

Claims

[1] Filter unit (30), characterized by that it includes the following: a capacitor assembly (32); a copper series assembly comprising a positive amplification copper series (321), a positive motor copper series (322) and a negative copper series (323), each connected to the capacitor assembly, wherein an input end of the positive amplification copper series (321) is connected between a positive electrode of a charging terminal (200) and the input end of a motor, wherein the input end of the positive motor copper series (322) is connected between the output end of the positive electrode of a battery pack (300) and the output end of a negative electrode of a power module, and wherein the negative copper series (323) is connected between the output end of the negative electrode of the battery pack (300) and the input end of the negative electrode of the power module. [2] Filter unit (30) according to claim 1, characterized by, that at least two of the positive reinforcing copper series (321), the positive motor copper series (322) and the negative copper series (323) are connected to each other to form a receiving space, wherein at least a part of the capacitor assembly (32) is located in the receiving space. [3] Filter unit (30) according to claim 1, characterized by , that the capacitor assembly (32) comprises a first X-capacitor (324a) and a second X-capacitor (324b), wherein the first X-capacitor (324a) is connected to the positive amplifying copper row (321) and the negative copper row (323), respectively, while the second X-capacitor (324b) is connected to the positive motor copper row (322) and the negative copper row (323), respectively. [4] Filter unit (30) according to claim 1, characterized by , that the capacitor assembly includes the following: a first Y-capacitor (325a), which is connected to a housing body (10) and to the negative copper row (323), respectively; a second Y-capacitor (325b), which is connected to the housing body (10) and to the positive amplifying copper row (321), respectively; and / or a third Y-capacitor (325c), which is connected to the housing body (10) and to the positive motor copper row (322), respectively. [5] Filter unit (30) according to claim 3 or 4, characterized by , that the capacitor assembly (32) further comprises a first voltage regulating capacitor (326a), wherein the first voltage regulating capacitor (326a) is connected to the positive motor copper series (322) and the negative copper series (323), respectively. [6] Filter unit (30) according to claim 5, characterized by, that a plurality of the first voltage regulating capacitors is provided, wherein a plurality of the first voltage regulating capacitors is arranged along a first direction to form a voltage regulating capacitor group, wherein an inductance group and the voltage regulating capacitor group are arranged along a second direction, the first direction and the second direction intersecting. [7] Filter unit (30) according to claim 3 or 4, characterized by , that the capacitor assembly (32) further comprises a second voltage regulating capacitor (326b), wherein the second voltage regulating capacitor (326b) is connected to the positive reinforcing copper series (321) and the negative copper series (323), respectively. [8] Electric drive assembly (100), characterized by that it includes the following: a housing (1) and a motor (8); a cavity (2), wherein the cavity (2) is provided in the housing (1); a low-voltage input interface (3), wherein the low-voltage input interface (3) is provided on the housing (1); a high-voltage output interface (4), wherein the high-voltage output interface (4) is provided on the housing (1); a filter unit (30), wherein the filter unit (30) is provided in the cavity (2), wherein the input end of the filter unit (30) is connected to the low-voltage input interface (3); a switch unit (6), wherein the switch unit (6) is provided in the cavity (2), wherein the input end of the switch unit (6) is connected to the output end of the filter unit (30); an electronic control unit (7), wherein the electronic control unit (7) is provided in the cavity (2), wherein the input end of the electronic control unit (7) is connected to the output end of the switch unit (6), while the output end of the electronic control unit (7) is connected to the high voltage output interface (4); that the housing (1) further comprises the following: a plurality of ribbed plates (105), wherein the ribbed plates (105) are provided in the first receiving groove (2011), wherein the plurality of ribbed plates (105) divides the first receiving groove (2011) into a plurality of insulating grooves (20111), wherein the filter unit (30), the neutral point interface (801) and the three-phase interface (802) are provided successively in the plurality of insulating grooves (20111); the housing (1) comprises the following: a first section (101), wherein the first section is provided with a first recess (201), the first recess (201) comprises the following: a first intake notch (2011), wherein the first intake notch is provided at the first section (101), wherein the filter unit (30) is provided in the first intake notch (2011); wherein the motor (8) has a neutral point interface (801) and a three-phase interface (802). [9] Electric drive assembly (100) according to claim 8, characterized by , wherein the filter unit (30) and the switch unit (6) are each provided in the first recess (201), wherein the low voltage input interface (3) is provided on the first section (101); a second section (102), wherein the second section (102) is provided with a second recess (202), wherein the electronic control unit (7) is provided in the second recess (202), wherein the high voltage output interface (4) is provided on the second section (102); wherein the first section (101) is connected to the second section (102), wherein the first recess (201) and the second recess (202) are provided opposite each other and together form the cavity (2). [10] Electric drive assembly (100) according to claim 9, characterized by , that the first recess (201) further comprises the following: a second receiving slot (2012), wherein the second receiving slot (2012) is provided on the first section (101), wherein the second receiving slot (2012) is provided adjacent to the first receiving slot (2011) and is connected to the first receiving slot (2011), wherein the switch unit (6) is provided in the second receiving slot (2012). [11] Electric drive assembly (100) according to claim 10, characterized by , that the housing (1) further comprises the following: a plurality of first support columns (103), wherein a plurality of the first support columns (103) is provided in the first receiving groove (2011) successively along a circumferential direction of the first receiving groove (2011), wherein the filter unit (30) is provided on a plurality of the first support columns (103); a plurality of second support columns (104), wherein a plurality of the second support columns (104) is provided in the second receiving groove (2012) successively along a circumferential direction of the second receiving groove (2012), wherein the switch unit (6) is provided on a plurality of the second support columns (104); a plurality of third support columns, wherein a plurality of the third support columns is provided in the second recess (202), wherein the electronic control unit (7) is provided on a plurality of the third support columns. [12] Electric drive assembly (100) according to claim 11, characterized by, wherein the motor (8) is provided at an end of the first section (101) facing away from the second section (102), wherein the neutral point interface (801) and the three-phase interface (802) are each provided in the first receiving groove (2011), wherein an output end of the switch unit (6) is connected to the neutral point interface (801), and wherein an input end of the electrical control unit (7) is connected to the three-phase interface (802). [13] Electric drive assembly (100) according to claim 12, characterized by , that the filter unit (30) comprises the following: an adapter plate (501), wherein the adapter plate (501) is provided at one of the second receiving grooves (2012) of the first receiving groove (2011), wherein a first end of the adapter plate (501) is connected to an output end of the switch unit (6), while a second end of the adapter plate (501) is connected to the neutral point interface (801). [14] Electrical drive assembly according to claim 13, characterized by , that the input end of the switch unit (6) is located at an end of the filter unit (30) facing away from the bottom of the first receiving groove (2011), while the output end of the switch unit (6) is located at an end of the adapter plate (501) facing away from the bottom of the first receiving groove (2011), while the second end of the adapter plate (501) is located at an end of the neutral point interface (801) facing away from the bottom of the first receiving groove (2011). [15] Electrical drive assembly according to claim 12, characterized by , that the electric drive assembly (100) further comprises the following: a reduction gear (9), wherein the reduction gear (9) is provided at an end of the first section (101) facing away from the second section (102), wherein the motor (8) is provided at an end of the reduction gear (9) facing away from the first section (101), and wherein an output shaft of the motor (8) is connected to an input shaft of the reduction gear (9), while an output shaft of the reduction gear (9) is located on one side of the housing (1); wherein the housing (1) is provided with a deflection notch (106) on a side facing the output shaft of the reduction gear (9), wherein the first receiving groove (2011) is provided on a side of the first section (101) facing away from the deflection notch (106), while the second receiving groove (2012) is provided on a side of the first section (101) facing the deflection notch (106), wherein the low-voltage input interface (3) is provided on a side of the first section (101) facing away from the deflection notch (106), while the high-voltage output interface (4) is provided on a side of the second section (102) facing the deflection notch (106). [16] Electric drive assembly (100) according to any one of claims 8 to 15, characterized by, that the electric drive assembly (100) further comprises a coolant inlet interface (110) and a coolant outlet interface (11), wherein the coolant inlet interface (110) and the coolant outlet interface (11) are each provided on the housing (1); wherein the switching unit (6) comprises a first heat absorption path (601) wherein the inlet end of the first heat absorption path (601) is connected to the coolant inlet interface (110); wherein the electronic control unit (7) comprises a second heat absorption path (701), wherein the input end of the second heat absorption path (701) is connected to the output end of the first heat absorption path (601), while the output end of the second heat absorption path (701) is connected to the coolant output interface. [17] Battery system, characterized by , that it includes the following: a battery pack, wherein the battery pack comprises a low voltage output interface (121) and a high voltage input interface (122); an electric drive assembly (100) wherein the low voltage input interface (3) of the electric drive assembly (100) is connected to the low voltage output interface (121), while the high voltage output interface (4) of the electric drive assembly is connected to the high voltage input interface (122). [18] vehicle, characterized by that it comprises a battery system according to claim 17.

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