Confluence assembly, electric driving device and vehicle

Abstract

The present disclosure relates to a bus assembly (100) comprising: one or more power bus bars (10) for transmitting power; one or more signal bus bars (20) for transmitting signals; and the supporting piece (30) is provided with an accommodating cavity (31), and the power bus bar (10) and the signal bus bar (20) are at least partially accommodated in the accommodating cavity (31). The present disclosure also relates to an electric drive (200) comprising such a bus assembly (100) and a vehicle comprising such an electric drive (200).

Description

Technical Field

[0001] The present disclosure relates to a busbar assembly. In particular, the busbar assembly includes a signal busbar for transmitting signals. The present disclosure also relates to an electric drive device including such a busbar assembly and a vehicle including the electric drive device. Background Art

[0002] The electric drive device of a vehicle is used to convert electrical energy into mechanical energy for the vehicle to travel. It may include an electric motor, a gearbox, a power electronics device, etc. The power electronics device may include an electrical energy conversion device such as an inverter, and the power provided by an energy supply device such as a power battery or a fuel cell is transmitted to the electric motor after being converted by the power electronics device to drive the electric motor to rotate. Therefore, a busbar assembly is arranged between the power electronics device and the electric motor to transmit power from the power electronics device to the electric motor. In addition, a plurality of sensors are arranged inside the electric motor to monitor the operating state of the electric motor. The signals measured by these sensors also need to be transmitted to the vehicle control system through the power electronics device. Therefore, a signal transmission device also needs to be arranged between the power electronics device and the electric motor. Conventionally, the signal transmission device includes a signal transmission line led out from the motor housing, and then this signal transmission line is introduced into the housing interior of the power electronics device. Such a signal transmission device has a long signal transmission path and complex wiring, which is not convenient for installation. In addition, the housing of the electric drive device also needs to specifically provide interfaces for the signal transmission line to enter and exit the housing twice, making the design of the housing more complex.

[0003] Therefore, there is an urgent need to realize signal transmission between the power electronics device and the electric motor in a more convenient way. Summary of the Invention

[0004] Therefore, the present disclosure aims to solve the above problems, and its purpose is to provide a novel busbar assembly, an electric drive device and a vehicle. The busbar assembly according to the present disclosure can both transmit power and transmit signals, so as to realize signal transmission between the power electronics device and the electric motor in a simple way.

[0005] The above object is achieved by a busbar assembly according to an embodiment of the present disclosure, which includes one or more power busbars for transmitting power; one or more signal busbars for transmitting signals; and a support member having a receiving cavity, and both the power busbar and the signal busbar are at least partially received in the receiving cavity.

[0006] The object of the present disclosure is to provide a busbar assembly that can both transmit power and signals, thereby achieving signal transmission between a power electronic device and an electric machine in a simple manner. The busbar assembly according to the present disclosure includes a power busbar for transmitting power and a signal busbar for transmitting signals, with part of them being received in a receiving cavity. Therefore, the busbar assembly according to the present disclosure can simultaneously transmit power and signals between a power electronic device and an electric machine and / or a gearbox, eliminating the need for a dedicated signal transmission device. The busbar assembly has a small and compact structure, saving the installation space required in the housing of the electric drive device and also reducing the volume of the housing of the electric drive device as a whole.

[0007] The busbar assembly according to the present disclosure may also individually or combinatorially have one or more of the following features.

[0008] According to an embodiment of the present disclosure, the support member is an integral overmolded part formed on the power busbar and the signal busbar. Preferably, between each busbar of the busbar assembly, including the power busbar and the signal busbar, they are insulated from each other in pairs by the support member.

[0009] According to an embodiment of the present disclosure, the busbar assembly includes a first section, a second section, and a partition separating the first section and the second section. The power busbar includes a first connection end and a second connection end, and the signal busbar includes a third connection end and a fourth connection end. The first connection end of the power busbar and the third connection end of the signal busbar are located in the first section, the second connection end of the power busbar and the fourth connection end of the signal busbar are located in the second section, and the support member hermetically encapsulates the power busbar and the signal busbar at least at the partition. According to the above features, the first section and the second section of the busbar assembly are hermetically separated by the partition, so that they can be respectively arranged on both sides of a sealing device such as a sealed housing. Thus, the busbar assembly can lead power and signals out of the sealed housing or introduce power and signals into the sealed housing.

[0010] According to an embodiment of the present disclosure, a press rivet nut is installed on the first connection end and / or the second connection end of the power busbar, which is suitable for connecting to a power transmission terminal and / or a power transmission cable. Thus, the busbar assembly can be conveniently connected to external power components such as an electric machine and a power electronic device.

[0011] According to an embodiment of the present disclosure, the third connection end of the signal busbar is a plug-in piece suitable for connecting to an integrated circuit board, and the fourth connection end is suitable for connecting to a signal transmission wire harness. Thus, the busbar assembly can conveniently transmit signals through the signal busbar to the integrated circuit board for subsequent further transmission or processing.

[0012] According to an embodiment of the present disclosure, one or more guiding portions for guiding the signal transmission wire harness are provided in the second section of the support member.

[0013] According to an embodiment of the present disclosure, the busbar assembly includes three power busbars, corresponding to one phase of the three-phase alternating current respectively. Based on the above features, the busbar assembly is adapted to transmit the three-phase alternating current generated by the inverter in the power electronic device to the motor to drive the motor to rotate.

[0014] According to an embodiment of the present disclosure, the busbar assembly includes two signal busbars, which are respectively connected to the two signal outputs of the sensor. It is conceivable that the number of signal busbars included in the busbar assembly may be different from two, such as one, three or more.

[0015] According to an embodiment of the present disclosure, one or more mounting bushings for mounting the busbar assembly are provided on the support member, and the mounting bushings are located on one or more of the partition portion, the first section and the second section.

[0016] According to an embodiment of the present disclosure, the busbar assembly has a substantially L-shaped configuration, the first section and the second section respectively form two branches of the L-shape, and the partition portion is located at the intersection of the two branches of the L-shape.

[0017] The present disclosure also provides an electric drive device, which includes one or more busbar assemblies as described above.

[0018] The present disclosure also provides an electric drive device, which includes a housing defining a first space, a second space and a first communication hole communicating the first space and the second space; a power electronic device accommodated in the first space; a motor and a gearbox accommodated in the second space; and a busbar assembly as described above. The busbar assembly passes through the first communication hole such that the first section is located in the first space and the second section is located in the second space, and the partition portion seals against the periphery of the first communication hole to separate the first space and the second space. Based on the above features, the first section of the busbar assembly can be electrically connected to the power electronic device accommodated in the first space, and the second section of the busbar assembly can be electrically connected to the motor accommodated in the second space, so as to transmit electric power and signals between the power electronic device and the motor and / or the gearbox.

[0019] According to an embodiment of the present disclosure, the electric drive device includes a signal transmission wire harness arranged in the second space, one end of the signal transmission wire harness is connected to a sensor arranged on the motor and / or the gearbox, and the other end is connected to the fourth connection end of the signal busbar.

[0020] According to an embodiment of the present disclosure, the partition is located within the second space.

[0021] According to an embodiment of the present disclosure, the housing includes a partition wall disposed within the second space. The partition wall divides the second space into a first sub - space and a second sub - space that communicate with each other through a second communication hole disposed on the partition wall. The motor is disposed within the first sub - space, the gearbox is located within the second sub - space, and the first communication hole communicates the first space and the second sub - space. According to the above features, the partition portion and the second section of the busbar assembly disposed adjacent to the first communication hole are also located within the second sub - space.

[0022] According to an embodiment of the present disclosure, the sensor is a temperature sensor disposed on the motor. The signal transmission wire harness extends from the first sub - space to the second sub - space and is connected to the fourth connection end of the signal busbar. Thus, the electric drive device can measure the temperature of the motor to monitor the operating state of the motor.

[0023] According to an embodiment of the present disclosure, the electric drive device includes a sealing member disposed within the second space and surrounding the communication hole. The sealing member is disposed between the partition portion and the communication hole to establish a seal between the partition portion and the communication hole.

[0024] The present disclosure also provides an electric drive device, which includes a housing defining a first space and a second space; a power electronics device accommodated within the first space; a motor and a gearbox accommodated within the second space; and a busbar assembly as described above. The housing is provided with a first connection portion leading to the first space and a second connection portion leading to the second space. One end of the busbar assembly is electrically connected to the power electronics device through the first connection portion, and the other end of the busbar assembly is electrically connected to the motor (e.g., through a power busbar) and a sensor disposed within the second space (e.g., through a signal busbar). Thus, the busbar assembly can transmit power and signals between the power electronics device and the motor and / or the gearbox.

[0025] The present disclosure also provides a vehicle, which includes the electric drive device as described above. Description of the Drawings

[0026] To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. The following drawings are not deliberately drawn to scale in actual size, and the focus is on showing the gist of the present disclosure.

[0027] Figure 1 is a schematic diagram of an electric drive device according to an embodiment of the present disclosure;

[0028] Figure 2 shows the busbar assembly installed in the electric drive device;

[0029] Figure 3 is an enlarged view of the part of the housing of the electric drive device for installing the busbar assembly;

[0030] Figure 4 shows the busbar assembly during the installation process;

[0031] Figure 5 is a schematic diagram of the busbar assembly;

[0032] Figure 6 is an enlarged view of a part of the busbar assembly;

[0033] Figure 7 shows a cross-sectional view of the first section of the busbar assembly;

[0034] Figure 8 The support members of the busbar assembly are omitted to more clearly show the power busbar and the signal busbar;

[0035] Figures 9A - 9B shows an electric drive device in which the busbar assembly is partially arranged outside the housing, where Figure 9A the electric drive device adopts a busbar assembly including both a power busbar and a signal busbar according to the present application, Figure 9B the electric drive device adopts a conventional busbar assembly that does not include a signal busbar.

[0036] In all the drawings, the same or similar components are denoted by the same reference numerals. Detailed Embodiments

[0037] In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present disclosure in conjunction with the drawings of the embodiments of the present disclosure.

[0038] Unless otherwise defined, technical terms or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the art to which this disclosure pertains. The words such as "a", "an", or "the" used in the description and claims of this patent application of the disclosure do not denote a limitation of quantity, but rather mean that there is at least one. Words such as "comprising" or "including" mean that the elements or items appearing before this word cover the elements or items listed after this word and their equivalents, without excluding other elements or items. Although expressions such as "first" and "second" are used to describe the various elements of the disclosure, they are only used to distinguish one component from another, and do not limit the order or importance of the corresponding elements. Without departing from the scope of the disclosure, "the first element" may be written as "the second element", and similarly, "the second element" may be written as "the first element". Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0039] For ease of description, the accompanying drawings of the disclosure correspondingly simplify or omit components commonly used in the art, such as external connection lines and other components irrelevant to the description of the disclosure. These omitted or simplified components do not affect those skilled in the art's understanding of the content of the disclosure.

[0040] Figure 1 There is shown an electric drive device 200 for a vehicle according to an exemplary embodiment of the disclosure. As Figure 1 shown, the electric drive device 200 includes a power electronics device 220, an electric machine 230, and a gearbox 240. The power electronics device 220 supplies electric power to the electric machine 230, causing the electric machine 230 to rotate and generate a driving torque. This driving torque is transmitted through the gearbox 240 to the wheels of the vehicle to drive the vehicle to travel. In Figure 1 the illustrated embodiment, the power electronics device 220, the electric machine 230, and the gearbox 240 of the electric drive device 200 are arranged adjacent to each other, such that the electric drive device 200 has a compact structure, facilitating the installation of the electric drive device 200.

[0041] As Figures 2 - 4As shown, the housings of the power electronics device 220, the electric motor 230, and the gearbox 240 of the electric drive device 200 are integrated together to form a common housing 210 for the three components. The housing 210 defines a first space 211 and a second space 212. The power electronics device 220 is accommodated within the first space 211. The second space 212 is further divided by a partition wall 214 disposed therein into a first sub-space 212A and a second sub-space 212B. The electric motor 230 is disposed within the first sub-space 212A, and the gearbox 240 is disposed within the second sub-space 212B. The first space 211 and the second space 212 of the housing 210 communicate with each other through a first communication hole 213, and the first sub-space 212A and the second sub-space 212B of the second space 212 communicate with each other through a second communication hole 215 disposed on the partition wall 214. In addition, a transmission hole 217 is also provided on the partition wall 214 of the second space 212. A transmission shaft (not shown in the drawings) of the electric motor 230 and / or an input shaft (not shown in the drawings) of the gearbox 240 can pass through the transmission hole 217, and the transmission shaft and the input shaft are rotationally connected so that torque can be transmitted from the electric motor 230 to the gearbox 240.

[0042] The electrical connection between the power electronics device 220 and the electric motor 230 of the electric drive device 200 can be achieved by passing through the first communication hole 213 and / or the second communication hole 215 inside the housing 210, without the need to additionally arrange cables outside the housing 210. In particular, as Figure 3 and Figure 4 shown, the first communication hole 213 connects the second sub-space 212B of the second space 212 with the first space 211. Therefore, the connection between the electric motor 230 located in the first sub-space 212A of the second space 212 and the power electronics device 220 needs to pass through the second communication hole 215, the second sub-space 212B, and the first communication hole 213.

[0043] Specifically, the electric drive device 200 further includes a busbar assembly 100 for realizing the electrical connection between the power electronics device 220 and the electric motor 230. Referring to Figure 5 the busbar assembly 100 is generally L-shaped as a whole, and it includes a first section 100A, a second section 100B that respectively form two branches of the L-shape, and a partition portion 100C located at the intersection of the two branches of the L-shape and separating the first section 100A and the second section 100B. It should be understood that the shape of the busbar assembly 100 is not limited to L-shaped, but can have any other shape suitable for electrically connecting the power electronics device 220 and the electric motor 230.

[0044] In the assembled structure of the electric drive device 200, the busbar assembly 100 passes through the first communication hole 213, with its first section 100A located in the first space 211 and the second section 100B located in the second space 212. The partition portion 100C is also located in the second space 212 and sealingly abuts against the periphery of the first communication hole 213, separating the first space 211 and the second space 212. Refer to Figure 3 And Figure 4 , in the second space 212, a sealing member 216 such as a sealing ring or sealant is arranged around the periphery of the first communication hole 213. The partition portion 100C of the busbar assembly 100 abuts against the sealing member 216, thereby establishing a seal between the partition portion 100C and the first communication hole 213. In the illustrated embodiment, the first communication hole 213 and the sealing member 216 have a polygonal shape. It is conceivable that the first communication hole 213 and the sealing member 216 may also have other shapes, such as square, circular, etc. Thus, the first space 211 and the second space 212 of the housing 210 are completely isolated by the busbar assembly 100. The first space 211 and the second space 212 may have different internal environments. For example, the motor 230 and the gearbox 240 located in the second space 212 can be cooled and lubricated by oil. The busbar assembly 100 can prevent the cooling oil / lubricating oil from entering the first space 211 that houses the power electronics device 220.

[0045] The power of the motor 230 is supplied by the power electronics device 220. Exemplarily, the power electronics device 220 includes an inverter, which can convert the direct current provided by an energy supply device such as a power battery or a fuel cell into alternating current and transmit it to the motor 230 to drive the motor 230 to rotate. At the same time, the operating state of the motor 230 and / or the gearbox 240 can also be detected by the power electronics device 220. For example, temperature sensors can be arranged on the motor 230 and / or the gearbox 240, and the measured temperature signals are transmitted to the integrated circuit board of the power electronics device 220 for subsequent processing and regulation of the power supplied to the motor 230. It should be noted that the present disclosure does not limit the type of sensors. In the present disclosure, the busbar assembly 100 for the electrical connection between the power electronics device 220 and the motor 230 can both transmit power and transmit signals.

[0046] Refer to Figures 5 - 8, the busbar assembly 100 includes three power busbars 10 for transmitting electric power. The power busbars 10 include a first connection end 11 located at the first section 100A and a second connection end 12 located at the second section 100B. A press rivet nut 13 is mounted on the first connection end 11 and is adapted to be connected to the power transmission terminal of the power electronic device 220. The second connection end 12 is adapted to mount the power transmission cable of the motor 230. Exemplarily, the first connection ends 11 of the three power busbars 10 of the busbar assembly 100 are respectively connected to one phase terminal of the three-phase alternating current output by the inverter of the power electronic device 220, and the corresponding second connection ends 12 are connected to the power transmission cables of the stator windings of the motor 230. Thus, the power electronic device 220 supplies electric power to the motor 230 through the busbar assembly 100. It can be understood that the first connection end 11 can also be connected to the power electronic device 220 through a power transmission cable, and the second connection end 12 can also be connected to the stator winding of the motor 230 through a press rivet nut 13.

[0047] Correspondingly, as Figures 2 - 4 shown, three second communication holes 215 for communicating the first sub-space 212A and the second sub-space 212B of the second space 212 are provided on the partition wall 214. The main body of the second section 100B of the busbar assembly 100 is located in the second sub-space 212B, and the second connection ends 12 of the three power busbars 10 respectively pass through the three second communication holes 215 to connect to the motor 230 located in the first sub-space 212A.

[0048] The busbar assembly 100 further includes a signal busbar 20 for transmitting signals. The signal busbar 20 includes a third connection end 21 located at the first section 100A and a fourth connection end 22 located at the second section 100B. As Figure 5 and Figure 8 shown, the third connection end 21 of the signal busbar 20 is in the form of a plug-in piece and is adapted to be connected (e.g., plugged in) to the integrated circuit board of the power electronic device 220. The fourth connection end 22 of the signal busbar 20 is connected to the signal transmission wire harness 201 of the electric drive device 200. The signal transmission wire harness 201 is arranged in the second space 212, and one end of it is connected to (e.g., refer to Figure 6, a sensor (such as a temperature sensor or other suitable sensor) arranged on the motor 230 and / or the gearbox 240 through a connection terminal plug is connected to the fourth connection end 22 of the signal bus bar 20 at the other end (such as by welding). In particular, for the case where the sensor is arranged on the motor 230, the signal transmission wire harness 201 extends from the first subspace 212A through the second communication hole 215 to the second subspace 212B, and then is connected to the fourth connection end 22 of the signal bus bar 20, so that the signal of the sensor located in the first subspace 212A can be transmitted to the fourth connection end 22 located in the second subspace 212B.

[0049] In addition, as Figure 6 shown, the signal bus bar 20 does not extend at a long extension distance at the second section 100B, but extends across the partition 100C to the second section 100B and then terminates. That is, the fourth connection end 22 of the signal bus bar 20 is arranged adjacent to the partition 100C. Correspondingly, the signal transmission wire harness 201 extends along the second section 100B of the bus bar assembly 100 to be connected to the fourth connection end 22. One or more guiding portions 32 are provided on the second section 100B to guide and fix the signal transmission wire harness 201.

[0050] The power bus bar 10 and the signal bus bar 20 of the bus bar assembly 100 are supported by the support 30. Specifically, the support 30 has a receiving cavity 31, and both the power bus bar 10 and the signal bus bar 20 are at least partially received in the receiving cavity 31. In a preferred embodiment, the support 30 of the bus bar assembly 100 is an integral support, which is formed on the power bus bar 10 and the signal bus bar 20 in a way of overmolding. In particular, at least at the partition 100C, the power bus bar 10 and the signal bus bar 20 are hermetically encapsulated by the support 30. Therefore, the power bus bar 10 and the signal bus bar 20 can electrically connect the power electronic device 220 located in the first space 211 and the motor 230 located in the second space 212 without destroying the isolation between the first space 211 and the second space 212.

[0051] The support 30 also functions to fixedly mount the bus bar assembly 100. Specifically, a plurality of mounting bushings 33 are provided on the support 30, and a fastener such as a screw can pass through the mounting bushings 33 to mount the bus bar assembly 100 on the housing 210. In Figure 5In the illustrated embodiment, mounting bushings 33 are arranged on the partition portion 100C of the busbar assembly 100, the first section 100A and the second section 100B. In particular, the mounting bushings 33 on the partition portion 100C can press the partition portion 100C tightly against the sealing member 216 to ensure the seal between the partition portion 100C and the first communication hole 213. Since the busbar assembly 100 includes both the power busbars 10 and the signal busbars 20, only one installation is required to achieve the power output and signal input of the power electronic device 220, without the need to install or provide a dedicated signal input component on the housing 210.

[0052] Exemplarily, the busbar assembly 100 has a busbar assembly 100 with three power busbars 10 and two signal busbars 20. The three power busbars 10 respectively correspond to one phase in the three-phase alternating current, and the two signal busbars 20 are respectively connected to the two signal outputs of the sensor. It should be understood that the number of power busbars 10 and signal busbars 20 included in the busbar assembly 100 can be different.

[0053] The present invention has been described above with respect to the embodiment where the busbar assembly 100 is arranged inside the housing 210 of the electric drive device 200. It can be understood that the busbar assembly can also be at least partially arranged outside the housing 210. Figure 9A Such an embodiment is shown. In this configuration, as Figure 9A shown, a first connection portion 218 leading to the first space for accommodating the power electronic device and a second connection portion 219 leading to the second space for accommodating the motor and the gearbox can be provided on the housing 210. The communication hole between the first space and the second space can then be omitted. The main body of the busbar assembly (not shown in the drawings) is arranged outside the housing 210, and its two ends are respectively electrically connected to the power electronic device and the motor and the sensor through these two connection portions to transmit power and signals between the power electronic device and the motor and / or the gearbox. The first connection portion 218 and the second connection portion 219 can be in the form of connectors or through holes. In Figure 9A the example, the housing 210 includes a motor cover 210a mounted on the non-driving end of the motor to enclose the second space, and the second connection portion 219 is particularly a through hole provided on the motor cover 210a of the housing 210 (shown in a closed state). Since the busbar assembly according to the present application includes both power busbars and signal busbars, there is no need to specifically provide a connector for transmitting signals on the motor cover 210a. Instead, Figure 9B shows an electric drive device that uses a conventional busbar component that does not include signal busbars. It can be seen that in this example, in addition to the second connection portion 219', a connector 219a' for transmitting signals is also specifically provided on the motor cover 210a' of the housing 210'.

[0054] According to another aspect of the present disclosure, a vehicle is provided, which includes the electric drive device as described above. The vehicle may be an electrified vehicle, such as a battery electric vehicle (BEV), a hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle (PHEV), a range extended electric vehicle, or a fuel cell electric vehicle (FCEV). The vehicle may also be a hydrogen energy vehicle.

[0055] Certain features, structures, or characteristics in one or more embodiments of the present disclosure may be appropriately combined.

[0056] The above is a description of the present disclosure and should not be regarded as a limitation thereof. Although several exemplary embodiments of the present disclosure have been described, those skilled in the art will readily understand that many modifications can be made to the exemplary embodiments without departing from the novel teachings and advantages of the present disclosure. Therefore, all such modifications are intended to be included within the scope of the present disclosure as defined by the claims. It should be understood that the above is a description of the present disclosure, and the present disclosure should not be considered limited to the specific embodiments disclosed, and modifications to the disclosed embodiments and other embodiments are intended to be included within the scope of the present disclosure.

Claims

1. A busbar assembly (100), characterized in that, The busbar assembly (100) includes: One or more power busbars (10) for transmitting power; One or more signal busbars (20) for transmitting signals; A support member (30) having a receiving cavity (31), and the power busbar (10) and the signal busbar (20) are at least partially received in the receiving cavity (31).

2. The busbar assembly (100) according to claim 1, characterized in that, The support member (30) is an integral coating formed on the power busbar (10) and the signal busbar (20) by overmolding.

3. The busbar assembly (100) according to claim 1 or 2, characterized in that, The busbar assembly (100) includes a first section (100A), a second section (100B), and a partition (100C) separating the first section (100A) and the second section (100B), The power busbar (10) includes a first connection end (11) and a second connection end (12), and the signal busbar (20) includes a third connection end (21) and a fourth connection end (22). Among them, the first connection end (11) of the power busbar (10) and the third connection end (21) of the signal busbar (20) are located in the first section (100A), and the second connection end (12) of the power busbar (10) and the fourth connection end (22) of the signal busbar (20) are located in the second section (100B), and The support member (30) hermetically encapsulates the power busbar (10) and the signal busbar (20) at least at the partition (100C).

4. The busbar assembly (100) according to claim 3, characterized in that, A press riveting nut (13) is installed on the first connection end (11) and / or the second connection end (12) of the power busbar (10), and is adapted to be connected to a power transmission terminal and / or a power transmission cable.

5. The busbar assembly (100) according to claim 3, characterized in that, The third connection end (21) of the signal busbar (20) is adapted to be connected to a plug-in piece on an integrated circuit board, and the fourth connection end (22) is adapted to be connected to a signal transmission wire harness (201).

6. The busbar assembly (100) according to claim 5, characterized in that, The support member (30) is provided with one or more guiding portions (32) for guiding the signal transmission wire harness (201) in the second section (100B).

7. The busbar assembly (100) according to any one of claims 3 to 6, characterized in that, The busbar assembly (100) includes three power busbars (10), respectively corresponding to one phase in three-phase alternating current.

8. The busbar assembly (100) according to any one of claims 3 to 6, characterized in that, The busbar assembly (100) includes two signal busbars (10), respectively connected to two signal outputs of a sensor.

9. The busbar assembly (100) according to any one of claims 3 to 6, characterized in that, One or more mounting bushings (33) for mounting the busbar assembly (100) are provided on the support member (30), and the mounting bushings (33) are located on one or more of the partition (100C), the first section (100A), and the second section (100B).

10. The busbar assembly (100) according to any one of claims 2 to 5, characterized in that, The busbar assembly (100) has a generally L-shaped configuration, the first section (100A) and the second section (100B) respectively form two branches of the L-shape, and the partition (100C) is located at the intersection of the two branches of the L-shape.

11. An electric drive device (200), characterized in that, The electric drive device includes the busbar assembly (100) according to claim 1 or 2.

12. An electric drive device (200), characterized in that, The electric drive device includes: A housing (210) defines a first space (211), a second space (212), and a first communication hole (213) that communicates the first space (211) and the second space (212); A power electronic device (220) is accommodated in the first space (211); A motor (230) and a gearbox (240) are accommodated in the second space (212); and A busbar assembly (100) according to any one of claims 3 to 10, wherein the busbar assembly (100) passes through the first communication hole (213) such that the first section (100A) is located in the first space and the second section (100B) is located in the second space, and the partition (100C) seals against the periphery of the first communication hole (213) to separate the first space (211) and the second space (212).

13. The electric drive device (200) according to claim 12, characterized in that, The electric drive device (200) includes a signal transmission wire harness (201) disposed in the second space (212). One end of the signal transmission wire harness (201) is connected to a sensor disposed on the motor (230) and / or the gearbox (240), and the other end is connected to the fourth connection end (22) of the signal busbar (20).

14. The electric drive device (200) according to claim 12, characterized in that, The partition (100C) is located in the second space (212).

15. The electric drive device (200) according to claim 12, characterized in that, The housing (210) includes a partition wall (214) disposed in the second space (212). The partition wall (214) divides the second space (212) into a first sub-space (212A) and a second sub-space (212B) that communicate with each other through a second communication hole (215) disposed on the partition wall (214). The motor (230) is disposed in the first sub-space (212A), the gearbox (240) is disposed in the second sub-space (212B), and the first communication hole (213) communicates the first space (211) and the second sub-space (212B).

16. The electric drive device (200) according to claim 15, characterized in that, The sensor is a temperature sensor disposed on the motor (230). The signal transmission wire harness (201) extends from the first sub-space (212A) to the second sub-space (212B) and is connected to the fourth connection end (22) of the signal busbar (20).

17. The electric drive device (200) according to claim 12, characterized in that, The electric drive device (200) includes a sealing member (216) disposed in the second space (212) around the first communication hole (213). The sealing member (216) is disposed between the partition (100C) and the first communication hole (213) to establish a seal between the partition (100C) and the first communication hole (213).

18. An electric drive device (200), characterized in that, The electric drive device further includes: A housing (210) defines a first space (211) and a second space (212); A power electronic device (220) is accommodated in the first space (211); A motor (230) and a gearbox (240) are accommodated in the second space (212); and The busbar assembly (100) according to claim 1 or 2, wherein a first connection portion (218) leading to the first space (211) and a second connection portion (219) leading to the second space (212) are provided on the housing (210), and wherein one end of the busbar assembly (100) is electrically connected to the power electronic device (220) through the first connection portion (218), and the other end of the busbar assembly (100) is electrically connected to the motor (230) and a sensor disposed in the second space (212).

19. A vehicle, comprising the electric drive device (200) according to any one of claims 11 to 18.

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