Filter device, motor controller, electric assembly and vehicle

Abstract

The utility model discloses a filter device, a motor controller, an electric assembly and a vehicle. The filter device comprises a conducting bar; the first filtering assembly is arranged on the conducting bar and is adjacent to the input end of the conducting bar; the second filtering assembly is arranged on the conducting bar and is adjacent to the output end of the conducting bar; and at least part of the shielding partition plate is arranged between the first filtering assembly and the second filtering assembly, so that the first filtering assembly and the second filtering assembly can be separated. Therefore, due to the arrangement of the shielding partition plate in the filter device, mutual inductive coupling and mutual capacitive coupling of signals between the conducting bar at the first filtering assembly and the conducting bar at the second filtering assembly can be reduced, and the filtering effect of the filter device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a filter device, a motor controller, an electric powertrain, and a vehicle. Background Technology

[0002] In the prior art, filter devices contain multiple filter components, which can achieve multi-stage filtering. However, there are electromagnetic radiation effects between adjacent filter components. For example, magnetic field coupling can easily occur between adjacent filter components, which reduces the filtering effect of the filter device. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a filter device in which the shielding partition reduces the mutual inductive and capacitive coupling of signals between the conductive busbars at the first and second filter components, thereby improving the filtering effect of the filter device.

[0004] This utility model further proposes a motor controller.

[0005] This utility model further proposes an electric powertrain.

[0006] This utility model also proposes a vehicle.

[0007] A filter device according to a first aspect of the present invention includes: a busbar; a first filter component disposed on the busbar and adjacent to the input end of the busbar; a second filter component disposed on the busbar and adjacent to the output end of the busbar; and a shielding partition, at least a portion of which is disposed between the first filter component and the second filter component to separate the first filter component and the second filter component.

[0008] Therefore, the shielding partition in the filter device can reduce the mutual inductive and mutual capacitance coupling of signals between the conductive busbars at the first filter component and the conductive busbars at the second filter component, thereby improving the filtering effect of the filter device.

[0009] According to some embodiments of the present invention, the shielding partition includes: a main body disposed between the first filter component and the second filter component; a first bending portion connected to one side of the main body and bent toward the side closer to the second filter component; and a second bending portion connected to the other side of the main body and bent toward the side closer to the second filter component; wherein at least a portion of the second filter component is located between the first bending portion and the second bending portion.

[0010] According to some embodiments of the present invention, the first filtering component includes a first filtering circuit board and a first magnetic ring, the first filtering circuit board being electrically connected to the conductive bus and adjacent to the input end, and the first magnetic ring being sleeved on the conductive bus; and the second filtering component includes a second filtering circuit board and a second magnetic ring, the second filtering circuit board being electrically connected to the conductive bus and adjacent to the output end, and the second magnetic ring being sleeved on the conductive bus.

[0011] According to some embodiments of the present invention, the main body includes: a first main body, the first main body being located at least between the first filter circuit board and the second filter circuit board; a second main body, the second main body being located at least between the first magnetic ring and the second magnetic ring; and a transition section, the first main body and the second main body being staggered along the thickness direction of the first main body, and the transition section being connected to the first main body and the second main body respectively.

[0012] According to some embodiments of the present invention, the first bent portion and the second bent portion are connected to opposite sides in the width direction of the first body, and the second filter circuit board is located between the first bent portion and the second bent portion.

[0013] According to some embodiments of this utility model, the conductive busbar is U-shaped and includes: a first conductive segment, one end of which forms the input terminal, and the first filter component is disposed on the first conductive segment; a second conductive segment, which is parallel to the first conductive segment, one end of which forms the output terminal, and the second filter component is disposed on the second conductive segment; and a third conductive segment, which is bent relative to the first conductive segment and the second conductive segment respectively, and both ends of the third conductive segment are connected to the other ends of the first conductive segment and the other ends of the second conductive segment respectively.

[0014] According to some embodiments of the present invention, the filter device further includes: a third filter circuit board, which is electrically connected to the third conductive segment, and the shielding partition is connected to the third filter circuit board.

[0015] According to some embodiments of the present invention, the main body is provided with at least one fixing foot, and the third filter circuit board is provided with at least one fixing hole. The fixing foot extends into the fixing hole to position and connect the shielding partition with the third filter circuit board.

[0016] According to some embodiments of the present invention, the filter device further includes: a housing, wherein the conductive bar, the first filter component, the second filter component, the third filter circuit board and the shielding partition are all disposed within the housing.

[0017] According to some embodiments of the present invention, the conductive busbars are multiple and include a positive conductive busbar, a negative conductive busbar, and a multiplexed boost conductive busbar. The first filter component, the second filter component, and the third filter circuit board are all connected to the multiple conductive busbars.

[0018] According to some embodiments of the present invention, a motor controller includes the above-described filter device.

[0019] An electric power assembly according to a second aspect of the present invention includes: a motor; and the aforementioned motor controller, wherein the motor controller is connected to the motor.

[0020] The vehicle according to a third aspect of this utility model includes the electric powertrain described above.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the filter device according to an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of a structure containing a shielding partition between the first magnetic ring and the second magnetic ring according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the filter device according to an embodiment of the present invention, including a shielding partition.

[0026] Figure 4 This is a schematic diagram of the structure of the conductive busbar with the first magnetic ring inserted according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the second magnetic ring located below the second filter circuit board according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the filter device according to an embodiment of the present invention, including a third filter circuit board;

[0029] Figure 7 This is a schematic diagram of the filter device containing a conductive busbar according to an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the shell structure according to an embodiment of the present utility model;

[0031] Figure 9 This is a circuit diagram of the filtering device according to an embodiment of the present invention.

[0032] Figure label:

[0033] 100. Filter device;

[0034] 10. Conductive bus; 101. First conductive section; 102. Second conductive section; 103. Third conductive section; 104. Positive electrode conductive bus; 105. Negative electrode conductive bus; 106. Multiplexed boost conductive bus;

[0035] 20. First filter assembly; 21. First filter circuit board; 22. First magnetic ring;

[0036] 30. Second filter assembly; 31. Second filter circuit board; 32. Second magnetic ring;

[0037] 40. Shielding partition;

[0038] 41. Main body; 411. First main body; 412. Second main body; 413. Transition section; 414. Fixed foot;

[0039] 42. First bend; 43. Second bend;

[0040] 50. Third filter circuit board; 51. Mounting ear;

[0041] 60. Housing; 61. Grounding copper busbar; 62. Output terminal of positive conductor busbar; 63. Output terminal of negative conductor busbar; 64. Input terminal of positive conductor busbar; 65. Input terminal of negative conductor busbar. Detailed Implementation

[0042] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0043] The following is for reference. Figures 1-9 A filter device 100 according to an embodiment of the present invention is described.

[0044] Reference Figure 4As shown, the filter device 100 of the first aspect embodiment of the present invention includes: a conductive bus 10, a first filter component 20, a second filter component 30, and a shielding partition 40. The first filter component 20 is disposed on the conductive bus 10 and is adjacent to the input end of the conductive bus 10. The second filter component 30 is disposed on the conductive bus 10 and is adjacent to the output end of the conductive bus 10. At least a portion of the shielding partition 40 is disposed between the first filter component 20 and the second filter component 30, thereby separating the first filter component 20 and the second filter component 30.

[0045] Specifically, the first filter component 20 is disposed on the busbar 10. The first filter component 20 is adjacent to the input end of the busbar 10, which facilitates signal input and thus enables filtering through the first filter component 20.

[0046] Furthermore, the second filter component 30 is located adjacent to the output end of the busbar 10. This not only increases the distance between the first filter component 20 and the second filter component 30, but also reduces the mutual interference between them. Moreover, the second filter component 30 can further filter the output end, thereby further improving the filtering effect.

[0047] Furthermore, at least a portion of the shielding partition 40 is disposed between the first filter component 20 and the second filter component 30. The shielding partition 40 can separate the first filter component 20 and the second filter component 30. The shielding partition 40 has the characteristic of isolating signals, which can prevent the magnetic field of the first filter component 20 from reaching the second filter component 30, and can also prevent the mutual inductance transmission of signals between the input and output ends of the conductive busbar 10. This can reduce the mutual inductance and mutual capacitance coupling of signals between the conductive busbar 10 at the first filter component 20 and the conductive busbar 10 at the second filter component 30, thereby improving the filtering effect of the filter device 100.

[0048] Therefore, the shielding partition 40 in the filter device 100 can reduce the mutual inductive coupling and mutual capacitance coupling of signals between the conductive busbar 10 at the first filter component 20 and the conductive busbar 10 at the second filter component 30, thereby improving the filtering effect of the filter device 100.

[0049] According to specific embodiments of this utility model, such as Figure 4As shown, the shielding partition 40 includes: a main body 41, a first bent portion 42, and a second bent portion 43. The main body 41 is disposed between the first filter assembly 20 and the second filter assembly 30. The first bent portion 42 is connected to one side of the main body 41 and bends towards the side closer to the second filter assembly 30. The second bent portion 43 is connected to the other side of the main body 41 and bends towards the side closer to the second filter assembly 30. At least a portion of the second filter assembly 30 is located between the first bent portion 42 and the second bent portion 43.

[0050] Specifically, the main body 41 is disposed between the first filter component 20 and the second filter component 30. The main body 41 can separate the first filter component 20 and the second filter component 30, thereby avoiding the influence of electromagnetic radiation between the first filter component 20 and the second filter component 30.

[0051] Furthermore, the first bending portion 42 bends towards the side closer to the second filter component 30, and the second bending portion 43 bends towards the side closer to the second filter component 30. In this way, the first bending portion 42 and the second bending portion 43 can block both sides of the second filter component 30, thereby preventing the magnetic field of the first filter component 20 from reaching the second filter component 30 from both sides.

[0052] Furthermore, at least a portion of the second filter component 30 is located between the first bend 42 and the second bend 43. Thus, the first bend 42, the second bend 43, and the main body 41 can block the upper part of the second filter component 30, thereby avoiding mutual inductive coupling and mutual capacitance coupling of signals between the conductive busbar 10 at the first filter component 20 and the conductive busbar 10 above the second filter component 30.

[0053] According to some embodiments of this utility model, such as Figure 4 As shown, the first filter assembly 20 includes a first filter circuit board 21 and a first magnetic ring 22. The first filter circuit board 21 is electrically connected to the conductive bus 10 and is adjacent to the input end. The first magnetic ring 22 is sleeved on the conductive bus 10. The second filter assembly 30 includes a second filter circuit board 31 and a second magnetic ring 32. The second filter circuit board 31 is electrically connected to the conductive bus 10 and is adjacent to the output end. The second magnetic ring 32 is sleeved on the conductive bus 10.

[0054] The first filter component 20 mainly consists of a first filter circuit board 21 and a first magnetic ring 22. The first filter circuit board 21 is located above the first magnetic ring 22, thus utilizing the vertical space of the filter device 100 (vertical direction). The first filter circuit board 21 includes capacitors C1 and C2, and resistors R1 and R2. Since the first filter circuit board 21 is adjacent to the input terminal of the busbar 10, the first filter circuit board 21 and the first magnetic ring 22 can achieve first-stage filtering (passive filtering).

[0055] Furthermore, the second filter assembly 30 includes a second filter circuit board 31 and a second magnetic ring 32. The second filter circuit board 31 is located above the second magnetic ring 32, which utilizes the vertical space of the filter device 100, making its structure more compact. The second filter circuit board 31 consists of capacitors C3, C4, C5, and C6, and resistors R3 and R4. Since the second filter circuit board 31 is adjacent to the output terminal of the busbar 10, the second filter circuit board 31 and the second magnetic ring 32 can achieve a third-stage filtering, which is also a passive filtering.

[0056] Furthermore, the shielding partition 40 separates the first magnetic ring 22 and the second magnetic ring 32, which can avoid the influence of electromagnetic radiation between the first magnetic ring 22 and the second magnetic ring 32, and can also reduce the mutual inductance coupling and mutual capacitance coupling of signals between the conductive busbars 10, thereby improving the filtering effect of the filter device 100.

[0057] Moreover, the first magnetic ring 22 and the second magnetic ring 32 are both integral magnetic rings, which can avoid the decrease in magnetic ring inductance caused by separate magnetic rings.

[0058] According to some embodiments of this utility model, such as Figure 3 As shown, the main body 41 includes a first main body 411, a second main body 412, and a transition section 413. The first main body 411 is located at least between the first filter circuit board 21 and the second filter circuit board 31, and the second main body 412 is located at least between the first magnetic ring 22 and the second magnetic ring 32. The first main body 411 and the second main body 412 are staggered along the thickness direction of the first main body 411, and the transition section 413 is connected to the first main body 411 and the second main body 412 respectively.

[0059] The main body 41 is mainly composed of a first main body 411, a second main body 412 and a transition section 413. The first main body 411 is located at least between the first filter circuit board 21 and the second filter circuit board 31. In this way, the first main body 411 can shield and isolate the first filter circuit board 21 and the second filter circuit board 31, thereby reducing the influence of signals between the first filter circuit board 21 and the second filter circuit board 31.

[0060] Alternatively, the first main body 411 can be located between the first magnetic ring 22 and the second filter circuit board 31. In this way, the first magnetic ring 22 and the second filter circuit board 31 can be shielded and isolated, thereby avoiding the influence of signals between the first magnetic ring 22 and the second filter circuit board 31.

[0061] Furthermore, the second body 412 is located at least between the first magnetic ring 22 and the second magnetic ring 32, so that the second body 412 can shield and isolate the first magnetic ring 22 and the second magnetic ring 32, thereby reducing the impact on signal transmission between the first magnetic ring 22 and the second magnetic ring 32.

[0062] Furthermore, the first body 411 and the second body 412 are staggered along the thickness direction of the first body 411. In this way, the space in the thickness direction of the first body 411 can be reasonably utilized, the second magnetic ring 32 and the second filter circuit board 31 can be staggered along the thickness direction of the first body 411, and interference between the second body 412 and the second magnetic ring 32 can be avoided.

[0063] Moreover, the transition section 413 is connected to the first body 411 and the second body 412 respectively. The setting of the transition section 413 can avoid stress concentration at the connection between the first body 411 and the second body 412, avoid fatigue damage or fracture, and increase the arrangement space of the second magnetic ring 32.

[0064] According to some embodiments of this utility model, such as Figure 4 As shown, the first bend 42 and the second bend 43 are connected to opposite sides of the first body 411 in the width direction, and the second filter circuit board 31 is located between the first bend 42 and the second bend 43.

[0065] The first bend 42 and the second bend 43 are arranged in parallel relative to each other, and the second filter circuit board 31 is located between the first bend 42 and the second bend 43. In this way, the first bend 42, the second bend 43 and the main body 41 can jointly surround and shield the second filter circuit board 31, thereby improving the filtering effect.

[0066] According to some embodiments of this utility model, such as Figure 4As shown, the conductive bus 10 is U-shaped and includes a first conductive segment 101, a second conductive segment 102, and a third conductive segment 103. One end of the first conductive segment 101 forms an input terminal, and a first filter component 20 is disposed on the first conductive segment 101. The second conductive segment 102 is parallel to the first conductive segment 101, and one end of the second conductive segment 102 forms an output terminal. A second filter component 30 is disposed on the second conductive segment 102. The third conductive segment 103 is bent relative to the first conductive segment 101 and the second conductive segment 102, and both ends of the third conductive segment 103 are connected to the other end of the first conductive segment 101 and the other end of the second conductive segment 102, respectively.

[0067] The conductive busbar 10 is U-shaped, which provides high structural rigidity and bending resistance, thus extending its service life. Furthermore, the U-shaped design reduces the distance between the first conductive segment 101 and the second conductive segment 102. Since the first conductive segment 101 is pierced by the first magnetic ring 22 and the second conductive segment 102 is pierced by the second magnetic ring 32, the distance between the first magnetic ring 22 and the second magnetic ring 32 is also reduced. This increases the horizontal space inside the filter device 100 and reduces the horizontal space occupied by the conductive busbar 10, the first magnetic ring 22, and the second magnetic ring 32.

[0068] Furthermore, the busbar 10 is mainly composed of a first conductive segment 101, a second conductive segment 102 and a third conductive segment 103. One end of the first conductive segment 101 is configured as an input terminal, which facilitates signal input.

[0069] Furthermore, one end of the second conductive segment 102 is configured as an output terminal, which facilitates signal output. The two ends of the third conductive segment 103 are respectively connected to the other end of the first conductive segment 101 and the other end of the second conductive segment 102. In this way, the input signal of the first conductive segment 101 can be output through the third conductive segment 103 and then through the second conductive segment 102.

[0070] Furthermore, along the extension direction of the third conductive segment 103, the orthographic projections of the first magnetic ring 22 and the second magnetic ring 32 at least partially overlap. This reduces the space between the first magnetic ring 22 and the second magnetic ring 32 in the extension direction of the first conductive segment 101, thereby further increasing the space inside the filter device 100 in the extension direction of the first conductive segment 101.

[0071] According to some embodiments of this utility model, such as Figure 4 and Figure 6 As shown, the filter device 100 further includes a third filter circuit board 50, which is electrically connected to the third conductive segment 103, and the shielding partition 40 is connected to the third filter circuit board 50.

[0072] The third filter circuit board 50 includes capacitors C7, C8, C9, C10, C11, C12, C13, C14, and C15, resistors R5, R6, R7, R8, and R9, a TVS diode (transient voltage suppressor), and chip IC1. The third filter circuit board 50 is electrically connected to the third conductive segment 103, thereby forming a second-stage filter (i.e., active filter).

[0073] The second-stage filter (active filter) samples the common-mode interference signals on the positive DC+ and negative DC- terminals of the battery, then filters, compensates, and injects them into the network, thereby reducing the common-mode interference on the positive DC+ and negative DC- terminals of the battery.

[0074] Furthermore, such as Figure 9 As shown, the first filter circuit board 21 and the first magnetic ring 22 can first perform the first stage of filtering (passive filtering), the third filter circuit board 50 can perform the second stage of filtering (active filtering), and then the second filter circuit board 31 and the second magnetic ring 32 can perform the third stage of filtering (passive filtering).

[0075] The multi-stage passive filter, consisting of the first-stage filter and the second-stage filter, can suppress common-mode interference and differential-mode interference on the battery's positive input DC+ (positive terminal) and negative input DC- (negative terminal).

[0076] Moreover, the multi-stage filtering, the integrated magnetic ring, and the addition of shielding partitions 40 between the magnetic rings can achieve better filtering effect, make the structure more compact, and allow for installation in small spaces. This can also improve space utilization when the filter device 100 has a high depth and a narrow width.

[0077] According to some embodiments of this utility model, such as Figure 3 As shown, the main body 41 is provided with at least one fixing foot 414, and the third filter circuit board 50 is provided with at least one fixing hole. The fixing foot 414 extends into the fixing hole, thereby positioning and connecting the shielding partition 40 and the third filter circuit board 50.

[0078] The main body 41 is provided with at least one fixing foot 414. For example, the main body 41 may be provided with two or four fixing feet 414. The fixing feet 414 extend into the fixing holes for fixed connection, thereby realizing the positioning connection between the shielding partition 40 and the third filter circuit board 50, and making the connection between the shielding partition 40 and the third filter circuit board 50 more stable and firm.

[0079] According to some embodiments of the present invention, the filter device 100 further includes: a housing 60, a conductive busbar 10, a first filter component 20, a second filter component 30, a third filter circuit board 50, and a shielding partition 40, all disposed within the housing 60.

[0080] The housing 60 provides installation space for the conductive busbar 10, the first filter assembly 20, the second filter assembly 30, the third filter circuit board 50, and the shielding partition 40, and also serves a protective function.

[0081] Furthermore, the housing 60 is injection molded, and four cavities can be provided inside the housing 60, including: a DC bus terminal cavity, for example, the DC bus terminal cavity includes: a N-line terminal (the N-line is not normally working, but works during charging), a positive terminal, a negative terminal, a negative terminal for the filter output, a positive terminal for the filter output, and a terminal for the N-line for the filter output. A second cavity is provided inside the housing 60 corresponding to the position of the first filter circuit board 21 and the first magnetic ring 22, a third cavity is provided inside the housing 60 corresponding to the position of the third filter circuit board 50, and a fourth cavity is provided inside the housing 60 corresponding to the position of the second filter circuit board 31 and the second magnetic ring 32, thereby facilitating its fixed installation.

[0082] like Figure 3 As shown, the shielding partition 40 is provided with multiple mounting ears 51, which are fixedly connected to the housing 60, thereby making the connection between the shielding partition 40 and the housing 60 more stable and secure.

[0083] Furthermore, the housing 60 can be integrally formed with the shielding partition 40, which not only reduces the number of parts but also enables positioning and installation.

[0084] The filter device 100 is also provided with a grounding copper busbar 61. For example, the first grounding copper busbar corresponding to the first filter component 20, as well as the nut and steel sleeve used for connection, are all encased in the injection-molded housing 60. The third grounding copper busbar corresponding to the third filter circuit board 50 can be used for grounding.

[0085] Furthermore, during the assembly process, the first magnetic ring 22 and the second magnetic ring 32 can be inserted from the bottom of the housing 60, and then the welded first filter circuit board 21, the second filter circuit board 31, and the three-core conductive busbar 10 of the third filter circuit board 50 can be placed in the corresponding positions. Laser welding is then performed at both ends, and after the circuit is connected, epoxy resin is poured in to fix it.

[0086] The filter device 100 is compatible with both 2-core and 3-core DC bus terminals. The 2-core DC bus terminal includes a positive terminal and a negative terminal, while the 3-core DC bus terminal includes a positive terminal, a negative terminal, and a neutral (N) terminal. This compact layout also allows for the use of filter devices 100 with ample vertical space. Furthermore, the 3-core structure is compatible with 2-core DC buses, thus providing compatibility with both 2-core and 3-core DC buses and enabling multi-platform versatility.

[0087] According to some embodiments of this utility model, such as Figure 4 As shown, there are multiple conductive busbars 10, and each conductive busbar 10 includes a positive conductive busbar 104, a negative conductive busbar 105, and a multiplexed boost conductive busbar 106. The first filter component 20, the second filter component 30, and the third filter component are all connected to the multiple conductive busbars 10.

[0088] The positive electrode bus 104 has an input terminal 64 and an output terminal 62. The output terminal 62 can be configured as a positive copper bus output terminal. The negative electrode bus 105 has an input terminal 65 and an output terminal 63. The output terminal 63 can be configured as a negative copper bus output terminal. The filter device 100 also includes a positive power distribution output terminal and a negative power distribution output terminal. The multiplexed boost bus 106 has an input terminal and an output terminal. The bus 10 can be configured as a copper bus.

[0089] Furthermore, the first filter component 20, the second filter component 30, and the third filter circuit board 50 are all connected to multiple conductive busbars 10. In this way, passive filtering and active filtering can be combined, thereby making the filtering frequency range wider and the efficiency higher.

[0090] According to some embodiments of the present invention, a motor controller includes: the filter device 100 described in the above embodiments.

[0091] An electric power assembly according to a second aspect of the present invention includes: a motor and a motor controller as described in the above embodiment, wherein the motor controller is connected to the motor.

[0092] The vehicle according to a third aspect of this utility model includes: the electric powertrain described in the above embodiments.

[0093] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0094] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0095] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A filter device, characterized in that, include: Conductor bus (10); The first filter component (20) is disposed on the busbar (10) and adjacent to the input end of the busbar (10); The second filter component (30) is disposed on the busbar (10) and adjacent to the output end of the busbar (10); A shielding partition (40) is provided at least partially between the first filter component (20) and the second filter component (30) to separate the first filter component (20) and the second filter component (30).

2. The filter device according to claim 1, characterized in that, The shielding partition (40) includes: The main body (41) is disposed between the first filter component (20) and the second filter component (30); The first bending portion (42) is connected to one side of the main body portion (41) and bends toward the side closer to the second filter component (30); The second bending portion (43) is connected to the other side of the main body portion (41) and bends toward the side closer to the second filter component (30); At least a portion of the second filter component (30) is located between the first bend (42) and the second bend (43).

3. The filter device according to claim 2, characterized in that, The first filter assembly (20) includes a first filter circuit board (21) and a first magnetic ring (22). The first filter circuit board (21) is electrically connected to the busbar (10) and is adjacent to the input terminal. The first magnetic ring (22) is sleeved on the busbar (10). The second filter component (30) includes a second filter circuit board (31) and a second magnetic ring (32). The second filter circuit board (31) is electrically connected to the busbar (10) and is adjacent to the output end. The second magnetic ring (32) is sleeved on the busbar (10).

4. The filter device according to claim 3, characterized in that, The main body (41) includes: The first body (411) is located at least between the first filter circuit board (21) and the second filter circuit board (31); The second body (412) is located at least between the first magnetic ring (22) and the second magnetic ring (32); The transition section (413) is provided whereby the first body (411) and the second body (412) are staggered along the thickness direction of the first body (411), and the transition section (413) is connected to the first body (411) and the second body (412) respectively.

5. The filter device according to claim 4, characterized in that, The first bend (42) and the second bend (43) are connected to opposite sides of the width direction of the first body (411), and the second filter circuit board (31) is located between the first bend (42) and the second bend (43).

6. The filter device according to claim 2, characterized in that, The conductive bus (10) is U-shaped, and the conductive bus (10) includes: The first conductive segment (101) has one end forming the input terminal, and the first filter component (20) is disposed on the first conductive segment (101). The second conductive segment (102) is parallel to the first conductive segment (101), one end of the second conductive segment (102) forms the output terminal, and the second filter component (30) is disposed on the second conductive segment (102). The third conductive segment (103) is bent relative to the first conductive segment (101) and the second conductive segment (102), and the two ends of the third conductive segment (103) are respectively connected to the other end of the first conductive segment (101) and the other end of the second conductive segment (102).

7. The filter device according to claim 6, characterized in that, Also includes: The third filter circuit board (50) is electrically connected to the third conductive segment (103), and the shielding partition (40) is connected to the third filter circuit board (50).

8. The filter device according to claim 7, characterized in that, The main body (41) is provided with at least one fixing foot (414), and the third filter circuit board (50) is provided with at least one fixing hole. The fixing foot (414) extends into the fixing hole to position and connect the shielding partition (40) and the third filter circuit board (50).

9. The filter device according to claim 7, characterized in that, Also includes: The housing (60), the conductive busbar (10), the first filter component (20), the second filter component (30), the third filter circuit board (50) and the shielding partition (40) are all disposed inside the housing (60).

10. The filter device according to claim 7, characterized in that, The conductive bus (10) is multiple and includes a positive conductive bus (104), a negative conductive bus (105) and a multiplexed boost conductive bus (106). The first filter component (20), the second filter component (30) and the third filter circuit board (50) are all connected to the multiple conductive bus (10).

11. A motor controller, characterized in that, include: The filter device according to any one of claims 1-10.

12. An electric powertrain, characterized in that, include: Electric motor; The motor controller according to claim 11 is connected to the motor.

13. A vehicle, characterized in that, include: The electric powertrain according to claim 12.

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