Grounding assembly, filter, motor controller and vehicle

Abstract

The utility model discloses a grounding assembly, a filter, a motor controller and a vehicle, the grounding assembly comprises a first grounding piece and a grounding elastic piece, the grounding elastic piece is connected to one side of the first grounding piece, and the grounding elastic piece protrudes towards a direction deviating from the first grounding piece so as to form an elastic deformation space between the grounding elastic piece and the first grounding piece. According to the grounding assembly, the grounding assembly comprises the first grounding piece and the grounding elastic piece connected to one side of the first grounding piece, the grounding elastic piece protrudes in the direction away from the first grounding piece so that the elastic deformation space can be formed between the grounding elastic piece and the first grounding piece, and the elastic deformation space can be elastically deformed. Therefore, the stability and reliability of the grounding elastic sheet during grounding are improved, and stable grounding and good conductivity of the grounding assembly are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a grounding component, a filter, a motor controller and a vehicle. Background Art

[0002] With the development of new energy vehicle motor controllers, higher requirements are placed on the overall performance, reliability and EMC of the whole machine. Among them, the quality of EMC performance has an important impact on the stable operation of the motor controller. Therefore, motor controllers often use filters to eliminate conducted interference, suppress and attenuate external noise signals, and ensure that internal devices operate within reasonable conditions.

[0003] In related technologies, filters usually include capacitors, inductors and other components. In the process of suppressing noise and interference signals, they need a good grounding path to ensure that they can effectively introduce unwanted noise or interference current into the ground, thereby preventing these noises from returning to the system to affect signal quality or cause safety hazards. When the vehicle is driving, the filter will shake, which may easily lead to the risk of poor contact or even disconnection of the grounding component, resulting in grounding failure. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a grounding assembly, wherein an elastic deformation space is formed between the grounding spring and the first grounding member, and the elastic deformation space can be elastically deformed to increase the stability and reliability of the grounding spring when grounding, so as to achieve stable grounding and good conductivity of the grounding assembly.

[0005] The utility model also provides a filter with the grounding component.

[0006] The utility model also provides a motor controller with the filter.

[0007] The utility model also provides a vehicle with the motor controller.

[0008] According to the first aspect of the present invention, the grounding component includes: a first grounding member; a grounding spring sheet, wherein the grounding spring sheet is connected to one side of the first grounding member and protrudes in a direction away from the first grounding member to form an elastic deformation space between the grounding spring sheet and the first grounding member.

[0009] According to the grounding component of the embodiment of the utility model, the grounding component includes a first grounding member and a grounding spring sheet connected to one side of the first grounding member, and the grounding spring sheet protrudes in a direction away from the first grounding member to form an elastic deformation space between the grounding spring sheet and the first grounding member. The elastic deformation space can be elastically deformed to increase the stability and reliability of the grounding spring sheet when it is grounded, so as to achieve stable grounding and good conductivity of the grounding component.

[0010] According to some embodiments of the present invention, an elastic pad is provided in the elastic deformation space.

[0011] According to some embodiments of the present invention, the first grounding member is a first printed circuit board, or the first grounding member is a first grounding conductive sheet, and the first grounding member is the first printed circuit board and the first grounding conductive sheet that are electrically connected.

[0012] According to some embodiments of the utility model, the grounding spring clip includes a spring clip body and a first flange and a second flange connected to both ends of the spring clip body, and the elastic deformation space is constructed between the spring clip body and the first grounding piece, and the first flange and the second flange are both in contact with the first grounding piece.

[0013] According to some embodiments of the utility model, the spring body includes a first plate body, a second plate body and a third plate body, the second plate body is connected between the first plate body and the third plate body, the second plate body is suitable for fitting with the contact surface corresponding to the grounding end, and is spaced apart from the first grounding piece, the first plate body is connected between the second plate body and the first flange, and the third plate body is connected between the second plate body and the second flange.

[0014] According to some embodiments of the present invention, there are a plurality of grounding spring sheets, and the plurality of grounding spring sheets are arranged at intervals.

[0015] According to some embodiments of the present invention, a plurality of cutouts are arranged on the spring sheet body to form a plurality of spring sheets arranged at intervals.

[0016] The filter according to the embodiment of the second aspect of the utility model includes: the grounding component according to the embodiment of the first aspect of the utility model.

[0017] According to the filter of the embodiment of the utility model, by providing the above-mentioned grounding component, the stability and reliability of the filter when grounding can be increased, so as to achieve stable grounding and good conductivity of the filter.

[0018] According to some embodiments of the utility model, the present invention comprises: a shell, wherein the two ends of the shell along the first direction respectively have a first opening and a second opening; a first magnetic ring and a second magnetic ring, wherein in the second direction, the first magnetic ring and the second magnetic ring are arranged side by side in the shell; an input conductive sheet, wherein the input conductive sheet is located in the shell, the first end of the input conductive sheet is located at the first opening, the second end of the input conductive sheet is passed through the first magnetic ring and extends in the direction of the second opening, and the input conductive sheet is electrically connected to the grounding component; an output conductive sheet, wherein the output conductive sheet is located in the shell, the first end of the output conductive sheet is located at the first opening and is spaced apart from the first end of the input conductive sheet, the second end of the output conductive sheet is passed through the second magnetic ring and extends in the direction of the second opening, and the second end of the output conductive sheet is connected to the second end of the input conductive sheet; wherein the first direction is perpendicular to the second direction.

[0019] According to some embodiments of the present invention, the first magnetic ring is a ring-shaped ring connected end to end; and / or the second magnetic ring is a ring-shaped ring connected end to end.

[0020] According to some embodiments of the utility model, the filter also includes: a first common-mode filter capacitor, which is located on a side of the first magnetic ring close to the first opening, and the first common-mode filter capacitor is connected to the input conductive sheet; a second common-mode filter capacitor, which is located on a side of the first magnetic ring close to the second opening, and the second common-mode filter capacitor is connected to the input conductive sheet and the grounding component; and a third common-mode filter capacitor, which is located on a side of the second magnetic ring close to the first opening, and the third common-mode filter capacitor is connected to the output conductive sheet.

[0021] According to some embodiments of the present invention, the filter further includes a ground shielding layer, which is located between the first magnetic ring and the second magnetic ring and is used to block electromagnetic radiation between the first magnetic ring and the second magnetic ring.

[0022] According to some embodiments of the utility model, the input conductive sheet includes a first input conductive sheet, a second input conductive sheet and a third input conductive sheet arranged side by side along a third direction, and three of the first common-mode filter capacitor and the second common-mode filter capacitor are respectively connected to the first input conductive sheet, the second input conductive sheet and the third input conductive sheet; the output conductive sheet includes a first output conductive sheet, a second output conductive sheet and a third output conductive sheet arranged side by side along the third direction, and three of the third common-mode filter capacitors are respectively connected to the first output conductive sheet, the second output conductive sheet and the third output conductive sheet, wherein the first direction and the second direction are perpendicular to the third direction in pairs.

[0023] According to some embodiments of the utility model, the filter also includes: a connecting conductive plate, the connecting conductive plate including a first connecting conductive plate, a second connecting conductive plate and a third connecting conductive plate arranged side by side along the third direction, the first connecting conductive plate is used to connect the first input conductive plate and the first output conductive plate, the second connecting conductive plate is used to connect the second input conductive plate and the second output conductive plate, and the third connecting conductive plate is used to connect the third input conductive plate and the third output conductive plate.

[0024] According to some embodiments of the utility model, the filter also includes: a differential mode filter capacitor, which is located on a side of the first magnetic ring close to the second opening, and the differential mode filter capacitor is connected between the first connecting conductive sheet and the second connecting conductive sheet.

[0025] According to some embodiments of the present invention, the connecting conductive sheet further includes: a protective shell, which is an injection-molded part integrally injection-molded on the outer surfaces of the first connecting conductive sheet, the second connecting conductive sheet, and the third connecting conductive sheet.

[0026] According to some embodiments of the present utility model, the shell has a first limiting groove for installing the grounding component.

[0027] According to some embodiments of the utility model, the filter also includes: a second printed circuit board and a second grounding conductive sheet, the grounding shielding layer is electrically connected to the second grounding conductive sheet, and the second printed circuit board is used to electrically connect the first common-mode filter capacitor and the second grounding conductive sheet; a third printed circuit board and a third grounding conductive sheet, the third printed circuit board is used to electrically connect the third common-mode filter capacitor and the third grounding conductive sheet, the shell has a second limiting groove for limiting the installation position of the third grounding conductive sheet, and the third printed circuit board and the third grounding conductive sheet are fixed to the shell by fasteners.

[0028] According to some embodiments of the present invention, the shell is an injection-molded part that is integrally injection-molded on the outer surfaces of the input conductive sheet, the output conductive sheet, and the first ground conductive sheet.

[0029] The motor controller according to the embodiment of the third aspect of the utility model includes: the filter according to the embodiment of the second aspect of the utility model.

[0030] According to the motor controller of the embodiment of the utility model, by setting the above-mentioned filter, the stability and reliability of the filter when grounding can be increased, so as to achieve stable grounding and good conductivity of the filter, and then the reliability of the motor controller when working can be achieved.

[0031] A vehicle according to an embodiment of the fourth aspect of the utility model includes: a motor controller according to an embodiment of the third aspect of the utility model.

[0032] According to the vehicle of the embodiment of the utility model, by providing the above-mentioned motor controller, the reliability of the motor controller during operation can be achieved, and further the safety of the vehicle during operation can be achieved.

[0033] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0035] Figure 1 is a partial schematic diagram of a filter according to some embodiments of the utility model, wherein no grounding component is provided;

[0036] Figure 2 yes Figure 1 A partial schematic diagram of the filter, wherein no housing is provided;

[0037] Figure 3 is an exploded view of a filter according to some embodiments of the present utility model;

[0038] Figure 4 is a partial schematic diagram of a filter according to some embodiments of the utility model;

[0039] Figure 5 yes Figure 4 Side view of the filter in the middle;

[0040] Figure 6 yes Figure 4 A top view of the filter;

[0041] Figure 7 yes Figure 4 Bottom view of the filter in the middle;

[0042] Figure 8 is a schematic diagram of a grounding assembly according to some embodiments of the utility model;

[0043] Fig. 9 It is a schematic diagram of connecting the conductive sheet with the input conductive sheet and the output conductive sheet by seam welding according to some embodiments of the utility model;

[0044] Fig.10 It is a schematic diagram of connection using stitch welding for connecting a conductive sheet with an input conductive sheet and an output conductive sheet according to some embodiments of the utility model;

[0045] Fig.11 It is a schematic diagram of the connection between the filter and the 3-core busbar connector according to some embodiments of the utility model;

[0046] Fig.12 It is a schematic diagram of the connection between the filter and the 2-core busbar connector according to some embodiments of the utility model;

[0047] Fig.13 is a partial schematic diagram of a filter placed in a motor controller according to some embodiments of the utility model;

[0048] Fig.14 It is a topological diagram of a filter according to some embodiments of the present utility model.

[0049] Reference numerals:

[0050] 100, filter; 11, housing; 111, first opening; 112, second opening; 113, first limiting groove; 114, second limiting groove; 12, first magnetic ring; 13, second magnetic ring; 14, input conductive sheet; 141, first input conductive sheet; 142, second input conductive sheet; 143, third input conductive sheet; 15, output conductive sheet; 151, first output conductive sheet; 152, second output conductive sheet; 153, third output conductive sheet; 16, connecting conductive sheet; 161, first connecting conductive sheet; 162, second connecting conductive sheet; 163 , third connecting conductive sheet; 164, protective shell; 165, high voltage lead; 17, first common mode filter capacitor; 171, third pin; 18, second common mode filter capacitor; 181, first pin; 19, third common mode filter capacitor; 191, fourth pin; 192, third lead; 20, differential mode filter capacitor; 201, second pin; 21, grounding shielding layer; 22, second printed circuit board; 23, second grounding conductive sheet; 24, third printed circuit board; 25, third grounding conductive sheet; 251, first limiting protrusion; 26, fastener; 27, steel sleeve;

[0051] 30. grounding assembly; 31. first grounding member; 32. grounding spring; 321. spring body; 3211. first plate; 3212. second plate; 3213. third plate; 3214. cutout; 3215. spring; 322. first flange; 323. second flange; 33. elastic pad; 34. elastic deformation space;

[0052] 40. Motor controller; 41. 2-core busbar connector; 42. 3-core busbar connector. DETAILED DESCRIPTION

[0053] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0054] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0055] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0056] Reference below Figure 1-Figure 14 A grounding assembly 30 according to an embodiment of the present invention is described.

[0057] According to the grounding component 30 of the first aspect of the utility model, the grounding component 30 is used to safely and effectively guide the current or static charge generated inside the device to the ground, prevent a large amount of charge from accumulating inside the device, and ensure the normal operation of the device and the personal safety of the user.

[0058] The grounding assembly 30 includes a first grounding member 31 and a grounding spring 32. The grounding spring 32 is connected to one side of the first grounding member 31, and the grounding spring 32 is connected to the side of the first grounding member 31 away from the device. The grounding spring 32 is used for grounding. For example, the grounding of the grounding spring 32 can be achieved by direct contact between the grounding spring 32 and the grounded device, or by indirect grounding through the grounded device. In the embodiment of the utility model, the grounding of the grounding spring 30 is achieved by direct contact between the grounding spring 32 and the box body.

[0059] The grounding spring 32 protrudes in a direction away from the first grounding member 31 to form an elastic deformation space 34 between the grounding spring 32 and the first grounding member 31. When the grounding spring 32 contacts the grounded device, the grounding spring 32 can be deformed, that is, the elastic deformation space 34 can be deformed; when the space between the grounding component 30 and the grounding device is insufficient, the grounding spring 32 can be deformed toward one side of the first grounding member 31, so that the grounding spring 32 can be placed in the grounding space; at the same time, the grounding spring 32 is deformed, which can increase the stability of the grounding spring 32 when it is grounded, and achieve stable grounding and good conductivity.

[0060] The existence of the elastic deformation space 34 can ensure that the grounding spring piece 32 can flexibly adapt to different contact pressures and installation positions during installation, thereby achieving stable contact and good conductivity; at the same time, it can also buffer the stress caused by thermal expansion and contraction or mechanical vibration, avoiding the risk of poor contact or even disconnection due to long-term stress, thereby improving the stability and reliability of the grounding effect.

[0061] According to the grounding component 30 of the embodiment of the utility model, the grounding component 30 includes a first grounding member 31 and a grounding spring piece 32 connected to one side of the first grounding member 31. The grounding spring piece 32 protrudes in a direction away from the first grounding member 31 to form an elastic deformation space 34 between the grounding spring piece 32 and the first grounding member 31. The elastic deformation space 34 can be elastically deformed to increase the stability and reliability of the grounding spring piece 32 when it is grounded, so as to achieve stable grounding and good conductivity of the grounding component 30.

[0062] According to some embodiments of the present invention, referring to Figure 8The elastic pad 33 is provided in the elastic deformation space 34. The elastic pad 33 can not only support between the first grounding member 31 and the grounding spring 32 to enhance the contact performance and stability between the grounding spring 32 and the first grounding member 31, but also can be elastically deformed in the elastic deformation space 34 to absorb shock and vibration, reduce wear and contact looseness caused by long-term work, and thus improve the overall service life and safety of the grounding assembly 30. For example, the elastic pad 33 is a rubber member.

[0063] According to some embodiments of the present invention, referring to Figure 8 The first grounding member 31 is a first printed circuit board, or the first grounding member 31 is a first grounding conductive sheet, or the first grounding member 31 is an electrically connected first printed circuit board and a first grounding conductive sheet, both of which can meet the grounding requirements of the first grounding member 31. By grounding the first printed circuit board, the assembly process of the grounding device can be simplified, so that the grounding path is integrated into the system, which is beneficial to reducing the volume of the grounding device and improving the overall efficiency. The material of the first grounding conductive sheet is usually a metal material with high conductivity, which can be directly welded or fixed on the device that needs to be grounded to provide an efficient grounding path. The first grounding member 31 can be composed of a variety of parts, and the type of the first grounding member 31 can be selected according to actual use, which can improve the practicality of the first grounding member 31.

[0064] According to some embodiments of the present invention, referring to Figure 8 The grounding spring clip 32 includes a spring clip body 321, a first flange 322 and a second flange 323. The first flange 322 and the second flange 323 are respectively connected to the two ends of the spring clip body 321, and an elastic deformation space 34 is constructed between the spring clip body 321 and the first grounding member 31; the first flange 322 and the second flange 323 are both fitted with the first grounding member 31 to increase the contact area and stability between the grounding spring clip 32 and the first grounding member 31; the first flange 322 and the second flange 323 are both tightly fitted with the first grounding member 31, which helps to improve the contact resistance stability between the grounding spring clip 32 and the first grounding member 31, and at the same time, the structural design of the first flange 322 and the second flange 32 can disperse the force, thereby improving the mechanical strength and durability of the entire grounding assembly 30.

[0065] According to some embodiments of the present invention, referring to Figure 8The spring body 321 includes a first plate body 3211, a second plate body 3212 and a third plate body 3213. The second plate body 3212 is connected between the first plate body 3211 and the third plate body 3213. The second plate body 3212 is suitable for fitting with the contact surface corresponding to the grounding end, and is spaced apart from the first grounding member 31. The first plate body 3211 is connected between the second plate body 3212 and the first flange 322, and the third plate body 3213 is connected between the second plate body 3212 and the second flange 323.

[0066] The second plate 3212 is fitted with the contact surface corresponding to the grounding end, rather than point contact or line contact between the second plate 3212 and the contact surface, but surface-to-surface contact. The second plate 3212 is fitted with the contact surface corresponding to the grounding end, and the outer surface of the second plate 3212 is completely fitted with the contact surface corresponding to the grounding end, which can increase the contact area between the second plate 3212 and the contact surface, thereby increasing the stability of the second plate 3212 when in contact with the grounding end, and also making the grounding assembly 30 better grounded.

[0067] For example, the contact surface corresponding to the grounding end is an inclined surface, and correspondingly, the outer surface of the second plate body 3212 is an inclined surface that fits the inclined surface. For another example, the contact surface corresponding to the grounding end is a horizontal surface, and correspondingly, the outer surface of the second plate body 3212 is a horizontal surface that fits the horizontal surface.

[0068] According to some embodiments of the present invention, referring to Figure 8 There are multiple grounding spring pieces 32, and the multiple grounding spring pieces 32 are arranged at intervals, which can increase the contact area, thereby improving the stability and reliability of grounding and reducing the risk of poor grounding due to single-point contact failure; for uneven or complex-shaped grounding surfaces, multiple grounding spring pieces 32 arranged at intervals can better adapt to and maintain sufficient contact; if one or more of the grounding spring pieces 32 cannot make good contact due to wear or other reasons, the other grounding spring pieces 32 can still maintain an effective grounding effect, thereby enhancing the fault tolerance and service life of the grounding component 30.

[0069] According to some embodiments of the present invention, referring to Figure 8 A plurality of cutouts 3214 are provided on the spring clip body 321, which divide the spring clip body 321 into a plurality of spring clips 3215. The plurality of spring clips 3215 can reduce the risk of poor grounding due to single-point contact failure. For uneven or complex-shaped grounding surfaces, the plurality of spring clips 3215 can better adapt to and maintain sufficient contact. If one or more of the spring clips 3215 cannot make good contact due to wear or other reasons, the other spring clips 3215 can still maintain an effective grounding effect, thereby enhancing the fault tolerance and service life of the grounding component 30.

[0070] The plurality of cutouts 3214 extend along the width direction of the spring body 321, and the two ends of the plurality of cutouts 3214 extend to the first flange 322 and the second flange 323 respectively. The width direction of the spring body 321 may refer to the direction from the first flange 322 to the second flange 323 or the direction from the second flange 323 to the first flange 322.

[0071] For example, the plurality of cutouts 3214 may be arranged in parallel and at equal intervals along the length direction of the spring body 321 , so that the width and shape of each spring clip 3215 are the same.

[0072] The filter 100 according to the embodiment of the second aspect of the utility model comprises: the grounding component 30 according to the embodiment of the first aspect of the utility model.

[0073] According to the filter 100 of the embodiment of the utility model, by providing the above-mentioned grounding component 30, the stability and reliability of the filter 100 when grounded can be increased, so as to achieve stable grounding and good conductivity of the filter 100.

[0074] According to some embodiments of the present invention, referring to Figure 1-Figure 8 , Fig.13 The filter 100 includes a housing 11 , a first magnetic ring 12 , a second magnetic ring 13 , an input conductive sheet 14 and an output conductive sheet 15 .

[0075] The housing 11 is disposed along a first direction (for example, Figure 4 The two ends of the first opening 111 and the second opening 112 are respectively provided with a first opening 111 and a second opening 112; Figure 4 In the direction shown by e2 in the figure, the first magnetic ring 12 and the second magnetic ring 13 are arranged side by side in the housing 11, which can improve the space utilization of the housing 11 in the second direction. The first direction is perpendicular to the second direction.

[0076] The input conductive sheet 14 is located in the housing 11, and the first end of the input conductive sheet 14 is located at the first opening 111, so that the first end of the input conductive sheet 14 can be connected to other devices. For example, the input conductive sheet 14 can be an input copper bar, and the first end of the input copper bar is exposed at the first opening 111, which is used to connect to the battery pack of the vehicle. The second end of the input conductive sheet 14 is inserted into the first magnetic ring 12, and the first magnetic ring 12 is used for processing and filtering electromagnetic signals. The second end of the input conductive sheet 14 extends in the direction of the second opening 112. The input conductive sheet 14 is electrically connected to the grounding component 30. When the filter 100 is working, it discharges unnecessary interference signals through the grounding path of the grounding component 30.

[0077] For example, when the filter 100 is placed in a box of the motor controller 40 , the grounding spring 32 of the grounding assembly 30 can achieve stable contact and good conductivity between the filter 100 and the box.

[0078] The output conductive sheet 15 is located in the housing 11, and the first end of the output conductive sheet 15 is located at the first opening 111, so that the first end of the output conductive sheet 15 can be connected to other devices. For example, the output conductive sheet 15 can be an output copper bar, and the first end of the output copper bar is exposed at the first opening 111, which is used to connect to the motor controller 40 of the vehicle. The first end of the output conductive sheet 15 is spaced apart from the first end of the input conductive sheet 14, and the second end of the output conductive sheet 15 is inserted into the second magnetic ring 13, which is used for processing and filtering electromagnetic signals, and the second end of the output conductive sheet 15 extends in the direction of the second opening 112, and the second end of the output conductive sheet 15 is connected to the second end of the input conductive sheet 14. The signal input from the input conductive sheet 14 can be transmitted to the output conductive sheet 15, and the second end of the input conductive sheet 14 is connected to the second end of the output conductive sheet 15 to construct a signal transmission channel of the filter 100. After being filtered by the electromagnetic effects of the first magnetic ring 12 and the second magnetic ring 13, the output conductive sheet 15 can output the filtered signal.

[0079] The first magnetic ring 12 and the second magnetic ring 13 are arranged side by side in the shell 11 along the second direction, and the output conductive sheet 15 is inserted into the first magnetic ring 12, and the input conductive sheet 14 is inserted into the second magnetic ring 13. The input conductive sheet 14 and the output conductive sheet 15 present a U-shaped structure in the shell 11, which can improve the space utilization of the input conductive sheet 14 and the output conductive sheet 15 in the second direction.

[0080] According to some embodiments of the present invention, referring to Figure 1-Figure 7 , the first magnetic ring 12 is a ring connected end to end; and / or the second magnetic ring 13 is a ring connected end to end, that is, the first magnetic ring 12 is a ring connected end to end, or, the second magnetic ring 13 is a ring connected end to end, or, the first magnetic ring 12 and the second magnetic ring 13 are both rings connected end to end. The closed-loop design helps to improve the magnetic ring inductance of the first magnetic ring 12 and the second magnetic ring 13, and can limit the magnetic field leakage.

[0081] For example, in actual use, the first magnetic ring 12 and the second magnetic ring 13 are both ring-shaped and connected end to end.

[0082] According to some embodiments of the present invention, referring to Figure 1-Figure 7The filter 100 further includes a first common-mode filter capacitor 17, a second common-mode filter capacitor 18 and a third common-mode filter capacitor 19. The first common-mode filter capacitor 17 is located on a side of the first magnetic ring 12 close to the first opening 111, and the first common-mode filter capacitor 17 is connected to the input conductive sheet 14. The first common-mode filter capacitor 17 is mainly used to eliminate common-mode interference.

[0083] The second common-mode filter capacitor 18 is located on one side of the first magnetic ring 12 close to the second opening 112. The second common-mode filter capacitor 18 is used to connect the input conductive sheet 14 and the grounding component 30. The second common-mode filter capacitor 18 is mainly used to eliminate common-mode interference. The input conductive sheet 14 is electrically connected to the grounding component 30 through the second common-mode filter capacitor 18, so that the input conductive sheet 14 can be grounded. For example, the second common-mode filter capacitor 18 has a first pin 181, and the first pin 181 is fixed to the grounding component 30 by welding.

[0084] The first common-mode filter capacitor 17 and the second common-mode filter capacitor 18 are respectively located on opposite sides of the first magnetic ring 12 along the first direction, so that the layout of the first common-mode filter capacitor 17 and the second common-mode filter capacitor 18 can be balanced, which helps to establish a relatively balanced electric field around the first magnetic ring 12. In this way, the magnetic field generated inside the first magnetic ring 12 will be more uniform, which helps to improve the filtering performance.

[0085] The third common-mode filter capacitor 19 is located on a side of the second magnetic ring 13 close to the first opening 111 . The third common-mode filter capacitor 19 is connected to the output conductive sheet 15 . The third common-mode filter capacitor 19 is mainly used to eliminate common-mode interference.

[0086] By providing the first common-mode filter capacitor 17 , the second common-mode filter capacitor 18 and the third common-mode filter capacitor 19 , the filter 100 can effectively resist common-mode interference in both the input and output stages, greatly improving the overall performance and signal quality of the filter 100 .

[0087] According to some embodiments of the present invention, referring to Figure 1-Figure 7 The filter 100 also includes a ground shielding layer 21, which is located between the first magnetic ring 12 and the second magnetic ring 13 and is used to block the electromagnetic radiation between the first magnetic ring 12 and the second magnetic ring 13. The ground shielding layer 21 is used to reduce the radiation effect between the filter components of each level and improve the filtering effect of the filter 100.

[0088] The ground shielding layer 21 helps to reduce the electromagnetic coupling between the first magnetic ring 12 and the second magnetic ring 13, and reduce the mutual interference between signals, especially the crosstalk between common mode noises, so as to improve the ability of the filter 100 to suppress common mode noises.

[0089] According to some embodiments of the present invention, referring to Figure 1-Figure 7 The input conductive sheet 14 includes a first input conductive sheet 141, a second input conductive sheet 142 and a third input conductive sheet 143. The first input conductive sheet 141, the second input conductive sheet 142 and the third input conductive sheet 143 are arranged side by side along a third direction (for example, refer to the e3 direction shown in Appendix 4). The first input conductive sheet 141, the second input conductive sheet 142 and the third input conductive sheet 143 can utilize the space in the third direction inside the shell 11, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0090] For example, the first input conductive sheet 141 can be a positive input copper busbar, the second input conductive sheet 142 can be a negative input copper busbar, and the third input conductive sheet 143 can be a boost input copper busbar. The positive input copper busbar, the negative input copper busbar, and the boost input copper busbar have a certain width in the third direction, and the positive input copper busbar, the negative input copper busbar, and the boost input copper busbar are arranged sequentially in the third direction.

[0091] There are three first common-mode filter capacitors 17, which are connected to the first input conductive sheet 141, the second input conductive sheet 142 and the third input conductive sheet 143 respectively, that is, one first common-mode filter capacitor 17 is connected to the first input conductive sheet 141, another first common-mode filter capacitor 17 is connected to the second input conductive sheet 142, and another first common-mode filter capacitor 17 is connected to the third input conductive sheet 143; there are also three second common-mode filter capacitors 18, which are connected to the first input conductive sheet 141, the second input conductive sheet 142 and the third input conductive sheet 143 respectively. That is, a second common-mode filter capacitor 18 is connected to the first input conductive plate 141, another second common-mode filter capacitor 18 is connected to the second input conductive plate 142, and another second common-mode filter capacitor 18 is connected to the third input conductive plate 143; by connecting the three first common-mode filter capacitors 17 and the three second common-mode filter capacitors 18 to the first input conductive plate 141, the second input conductive plate 142 and the third input conductive plate 143 respectively, the first common-mode filter capacitor 17 and the second common-mode filter capacitor 18 can both filter the common-mode noise of the corresponding input conductive plate.

[0092] For example, each first common-mode filter capacitor 17 has a first lead, which is fixed to the corresponding first input conductive plate 141, the second input conductive plate 142 and the third input conductive plate 143 by welding; each second common-mode filter capacitor 18 has a second lead, which is fixed to the corresponding first input conductive plate 141, the second input conductive plate 142 and the third input conductive plate 143 by welding.

[0093] The output conductive sheet 15 includes a first output conductive sheet 151, a second output conductive sheet 152 and a third output conductive sheet 153, which are arranged side by side along a third direction. The first output conductive sheet 151, the second output conductive sheet 152 and the third output conductive sheet 153 can utilize the space in the shell 11 in the third direction.

[0094] For example, the first output conductive sheet 151 can be a positive output copper bar, the second output conductive sheet 152 can be a negative output copper bar, and the third output conductive sheet 153 can be a boost output copper bar. The positive output copper bar, the negative output copper bar, and the boost output copper bar have a certain width in the third direction, and the positive output copper bar, the negative output copper bar, and the boost output copper bar are arranged sequentially in the third direction.

[0095] There are three third common-mode filter capacitors 19, which are connected to the first output conductive plate 151, the second output conductive plate 152 and the third output conductive plate 153 respectively, that is, one third common-mode filter capacitor 19 is connected to the first output conductive plate 151, another third common-mode filter capacitor 19 is connected to the second output conductive plate 152, and another third common-mode filter capacitor 19 is connected to the third output conductive plate 153. By connecting the three third common-mode filter capacitors 19 to the first output conductive plate 151, the second output conductive plate 152 and the third output conductive plate 153 respectively, the third common-mode filter capacitors 19 can filter the common-mode noise of the corresponding output conductive plates.

[0096] For example, each third common-mode filter capacitor 19 has a third lead 192 , and the third lead 192 is fixed to the corresponding first output conductive sheet 151 , second output conductive sheet 152 , and third output conductive sheet 153 by welding.

[0097] According to some embodiments of the present invention, referring to Figure 1-Figure 7 The filter 100 further includes a connecting conductive sheet 16, which includes a first connecting conductive sheet 161, a second connecting conductive sheet 162 and a third connecting conductive sheet 163, and the first connecting conductive sheet 161, the second connecting conductive sheet 162 and the third connecting conductive sheet 163 are arranged side by side along a third direction.

[0098] The first connecting conductive plate 161 is used to connect the first input conductive plate 141 and the first output conductive plate 151, and the first connecting conductive plate 161 can transmit the signal of the first input conductive plate 141 to the first output conductive plate 151; the second connecting conductive plate 162 is used to connect the second input conductive plate 142 and the second output conductive plate 152, and the second connecting conductive plate 162 can transmit the signal of the second input conductive plate 142 to the second output conductive plate 152; the third connecting conductive plate 163 is used to connect the third input conductive plate 143 and the third output conductive plate 153, and the third connecting conductive plate 163 can transmit the signal of the third input conductive plate 143 to the third output conductive plate 153.

[0099] For example, the two ends of the connecting conductive sheet 16 can be fixedly connected to the input conductive sheet 14 and the output conductive sheet 15 respectively by welding or screwing. The cost of fixing the connecting conductive sheet 16 with the input conductive sheet 14 and the output conductive sheet 15 by screwing is lower than that of fixing the connecting conductive sheet 16 with the input conductive sheet 14 and the output conductive sheet 15 by welding.

[0100] For example, the first connection conductive sheet 161 may be a first connection copper bar, the second connection conductive sheet 162 may be a second connection copper bar, and the third connection conductive sheet 163 may be a boost connection copper bar.

[0101] According to some embodiments of the present invention, referring to Figure 1-Figure 7 The filter 100 further includes a differential mode filter capacitor 20, which is located on a side of the first magnetic ring 12 close to the second opening 112, and is connected between the first connection conductive sheet 161 and the second connection conductive sheet 162. For example, the differential mode filter capacitor 20 has a plurality of second pins 201, and the first connection conductive sheet 161 and the second connection conductive sheet 162 are respectively provided with a first mounting hole and a second mounting hole, and one second pin 201 is fixed in the first mounting hole by welding, and another second pin 201 is fixed in the second mounting hole.

[0102] The differential mode filter capacitor 20 is used to eliminate differential mode interference. The differential mode filter capacitor 20 is connected between the first connecting conductive plate 161 and the second connecting conductive plate 162. The differential mode filter capacitor 20 can specifically filter out the differential mode noise between the first connecting conductive plate 161 and the second connecting conductive plate 162, thereby improving the filter 100's ability to suppress differential mode interference and ensuring the purity and stability of the output signal.

[0103] Under the joint action of the differential mode filter capacitor 20 and the first common mode filter capacitor 17 , the second common mode filter capacitor 18 , and the third common mode filter capacitor 19 , differential mode interference and common mode interference can be eliminated, thereby comprehensively optimizing the filtering effect and improving the electromagnetic compatibility of the filter 100 .

[0104] In a specific example, referring to Figure 11-Figure 12 The filter 100 has a positive circuit consisting of a first input conductive sheet 141, a first connecting conductive sheet 161 and a first output conductive sheet 151; a negative circuit consisting of a second input conductive sheet 142, a second connecting conductive sheet 162 and a second output conductive sheet 152; and a boost circuit consisting of a third input conductive sheet 143, a third connecting conductive sheet 163 and a third output conductive sheet 153. The input end of the filter 100 is used to electrically connect to a battery pack, and the output end is used to electrically connect to a motor controller 40. The battery pack has a 2-core busbar or a 3-core busbar. The filter 100 of the present application can be adapted to battery packs with 2-core busbars and 3-core busbars.

[0105] When the filter 100 is connected to the 2-core busbar connector 41 of the battery pack, a boost circuit composed of the third input conductive sheet 143, the third connecting conductive sheet 163 and the third output conductive sheet 153 is in a non-operating state, and does not affect the normal operation of the positive and negative circuits. When the filter 100 is connected to the 3-core busbar connector 42 of the battery pack, the positive circuit, the negative circuit and the boost circuit are in a normal operating state.

[0106] The filter 100 has the function of being compatible with a 2-core DC bus and a 3-core DC bus, has a wide range of applications, and can be used on multiple platforms.

[0107] According to some embodiments of the present invention, referring to Figure 1-Figure 3 , the connecting conductive sheet 16 also includes a protective shell 164, which is an injection molded part integrally injected on the outer surface of the first connecting conductive sheet 161, the second connecting conductive sheet 162 and the third connecting conductive sheet 163. By wrapping the first connecting conductive sheet 161, the second connecting conductive sheet 162 and the third connecting conductive sheet 163 with the injection molding material, it is possible to effectively prevent the first connecting conductive sheet 161, the second connecting conductive sheet 162 and the third connecting conductive sheet 163 from short circuiting or accidental contact with other conductive components, thereby providing necessary insulation protection. The protective shell 164 can also improve the resistance of the first connecting conductive sheet 161, the second connecting conductive sheet 162 and the third connecting conductive sheet 163 to environmental factors such as moisture, dust, and chemical corrosion, thereby extending the service life of the filter 100 in harsh environments.

[0108] According to some embodiments of the present invention, referring to Figure 1-Figure 7 The housing 11 has a first limiting groove 113 for installing the grounding component 30, which can be used to install and position the grounding component 30, thereby improving the accuracy of the installation position of the grounding component 30.

[0109] According to some embodiments of the present invention, referring to Figure 1-Figure 7The filter 100 also includes: a second printed circuit board 22, a second grounding conductive sheet 23, a third printed circuit board 24 and a third grounding conductive sheet 25. The grounding shielding layer 21 is electrically connected to the second grounding conductive sheet 23 to achieve grounding of the grounding shielding layer 21. The electromagnetic interference intercepted by the grounding shielding layer 21 can be quickly released to the ground through the second grounding conductive sheet 23, thereby achieving the purpose of reducing electromagnetic radiation and noise.

[0110] The second printed circuit board 22 is used to electrically connect the first common-mode filter capacitor 17 and the second ground conductive sheet 23. The second printed circuit board 22 can play a bridging role to achieve effective connection between the first common-mode filter capacitor 17 and the second ground conductive sheet 23, so as to achieve grounding of the first common-mode filter capacitor 17. For example, the third pin 171 can be led out from the first common-mode filter capacitor 17, and the third pin 171 can be fixed to the second printed circuit board 22 by welding.

[0111] The third printed circuit board 24 is used to electrically connect the third common-mode filter capacitor 19 and the third ground conductive sheet 25. The third printed circuit board 24 can play a bridging role to achieve effective connection between the third common-mode filter capacitor 19 and the third ground conductive sheet 25, so as to achieve grounding of the third common-mode filter capacitor 19. For example, the fourth pin 191 can be led out from the third common-mode filter capacitor 19, and the fourth pin 191 can be fixed to the third printed circuit board 24 by welding.

[0112] The second grounding conductive sheet 23 , the third grounding conductive sheet 25 and the grounding assembly 30 are independently arranged, thereby reducing the mutual influence of electromagnetic conduction.

[0113] The shell 11 has a second limiting groove 114, which is used to limit the installation position of the third grounding conductive sheet 25. The third grounding conductive sheet 25 is provided with a first limiting protrusion 251, which is located in the second limiting groove 114 and plays a role in pre-positioning the installation position of the third grounding conductive sheet 25 to ensure that the third grounding conductive sheet 25 can be accurately and firmly fixed in the shell 11.

[0114] The third printed circuit board 24 and the third grounding conductive sheet 25 are fixed to the housing 11 by fasteners 26, which can facilitate the removal of the third printed circuit board 24 and the third grounding conductive sheet 25. For example, the housing 11 has a nut, and the fastener 26 can be bolted to the nut.

[0115] According to some embodiments of the present invention, referring to Figure 1 , Figure 3The shell 11 is an injection-molded part that is integrally molded on the outer surfaces of the input conductive sheet 14, the output conductive sheet 15, and the second ground conductive sheet 23. The one-piece injection molding process simplifies the assembly process of the filter 100. The input conductive sheet 14, the output conductive sheet 15, the second ground conductive sheet 23, and the shell 11 can be tightly combined without additional installation steps, thereby reducing production costs and improving production efficiency.

[0116] The shell 11 is covered on the outside of the input conductive sheet 14, the output conductive sheet 15 and the second ground conductive sheet 23 through an injection molding process, providing good mechanical protection for the internal input conductive sheet 14, the output conductive sheet 15 and the second ground conductive sheet 23, avoiding damage caused by external factors such as impact, wear, oxidation, etc., and also enhancing the dustproof and waterproof performance of the filter 100.

[0117] The housing 11 ensures insulation between the input conductive sheet 14 , the output conductive sheet 15 and the second ground conductive sheet 23 , avoids short circuits between the input conductive sheet 14 , the output conductive sheet 15 and the second ground conductive sheet 23 , and improves electrical safety of the filter 100 .

[0118] For example, a steel sleeve 27 is also injection-molded in the housing 11 , and the second grounding conductive sheet 23 and the third connecting conductive sheet 162 are located in the steel sleeve 27 , providing mechanical protection for the second grounding conductive sheet 23 and the third connecting conductive sheet 162 .

[0119] In a specific example, referring to Figure 3 , install the first magnetic ring 12 and the second magnetic ring 13 into the housing 11 through the second opening 112; then install the connecting conductive sheet 16 welded with the differential mode filter capacitor 20 into the housing 11 through the second opening 112, and then weld the two ends of the first connecting conductive sheet 161 to the first input conductive sheet 141 and the first output conductive sheet 151 respectively, weld the two ends of the second connecting conductive sheet 162 to the second input conductive sheet 142 and the second output conductive sheet 152 respectively, and weld the two ends of the third connecting conductive sheet 163 to the third input conductive sheet 143 and the third output conductive sheet 153 respectively. Then, the grounding component 30 with the three second common-mode filter capacitors 18 welded thereto is placed into the housing 11 through the first opening 111, and the second leads of the three second common-mode filter capacitors 18 are respectively welded to the corresponding first input conductive sheet 141, the second input conductive sheet 142, and the third input conductive sheet 143; the connecting conductive sheet 16 has a high-voltage lead 165 folded toward the grounding component 30, the high-voltage lead 165 is passed through the first grounding piece 31, and is welded to the first grounding piece 31. After the above steps are completed, epoxy resin is poured into the housing 11 through the second opening 112 to fix it.

[0120] After welding the second printed circuit board 22 and the three first common-mode filter capacitors 17, they are placed into the side of the first magnetic ring 12 close to the first opening 111 through the opening of the shell 11 along the second direction. The first leads of the three first common-mode filter capacitors 17 are welded to the corresponding first input conductive sheet 141, the second input conductive sheet 142, and the third input conductive sheet 143, respectively. Then, epoxy resin is poured into the shell 11 through the opening of the shell 11 to fix them.

[0121] The three third common-mode filter capacitors 19 are placed into the side of the second magnetic ring 13 close to the first opening 111 through the opening of the other side of the shell 11 along the second direction, and then epoxy resin is poured into the shell 11 through the opening of the shell 11 to fix it. Then, the third leads of the three third common-mode filter capacitors 19 are welded and fixed to the corresponding first output conductive sheet 151, second output conductive sheet 152 and third output conductive sheet 153; then, the third grounding conductive sheet 25 and the third printed circuit board 24 are fixed to the shell 11 through the fasteners 26, and then the fourth pins 191 of the three third common-mode filter capacitors 19 are connected to the third printed circuit board 24 by welding.

[0122] In another specific embodiment, referring to Figure 9-10 The welding methods for connecting the two ends of the conductive sheet 16 with the input conductive sheet 14 and the output conductive sheet 15 can be seam welding and lap welding respectively.

[0123] The two ends of the connecting conductive sheet 16 are folded toward one side of the grounding component 30 to form a first folded edge and a second folded edge, respectively, and the input conductive sheet 14 is abutted against the first folded edge, and the output conductive sheet 15 is abutted against the second folded edge. The input conductive sheet 14 is welded to the first folded edge and the output conductive sheet 15 is welded to the second folded edge by seam welding.

[0124] The second end of the input conductive sheet 14 is folded toward one side of the output conductive sheet 15 to form a third folded edge, the second end of the output conductive sheet 15 is folded toward one side of the output conductive sheet 15 to form a fourth folded edge, one end of the connecting conductive sheet 16 is abutted against the third folded edge, the other end of the connecting conductive sheet 16 is abutted against the fourth folded edge, and the connecting conductive sheet 16 and the third folded edge and the connecting conductive sheet 16 and the fourth folded edge are welded by stack welding.

[0125] By comparing the space occupied by the plastic area connected to the conductive sheet 16, it can be found that the seam welding occupies less space, so the first magnetic ring 12 and the second magnetic ring 13 can be given more space, which can make the filter 100 have a large inductance and improve its filtering effect. Taking the first magnetic ring 12 as an example, the volume of the seam welding connection method is increased by 23.5% compared with the lap welding connection method, and the space utilization rate is significantly improved.

[0126] The motor controller 40 according to the third aspect of the present invention comprises: the filter 100 according to the second aspect of the present invention.

[0127] According to the motor controller 40 of the embodiment of the utility model, by setting the above-mentioned filter 100, the stability and reliability of the filter 100 when grounded can be increased, so as to achieve stable grounding and good conductivity of the filter 100, and further achieve the reliability of the motor controller 40 when working.

[0128] The vehicle according to the fourth aspect of the present invention comprises: the motor controller 40 according to the third aspect of the present invention.

[0129] According to the vehicle of the embodiment of the utility model, by providing the motor controller 40, the reliability of the motor controller 40 when working can be achieved, and further the safety of the vehicle when running can be achieved.

[0130] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0131] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A grounding assembly (30), characterized in that: include: A first grounding member (31); A grounding spring (32), the grounding spring (32) being connected to one side of the first grounding member (31), and the grounding spring (32) protruding in a direction away from the first grounding member (31) so as to form an elastic deformation space (34) between the grounding spring (32) and the first grounding member (31).

2. The grounding assembly (30) according to claim 1, characterized in that: An elastic pad (33) is provided in the elastic deformation space (34).

3. The grounding assembly (30) according to claim 1, characterized in that: The first grounding member (31) is a first printed circuit board, or the first grounding member (31) is a first grounding conductive sheet, or the first grounding member (31) is the first printed circuit board and the first grounding conductive sheet that are electrically connected.

4. The grounding assembly (30) according to claim 1, characterized in that: The grounding spring piece (32) comprises a spring piece body (321) and a first flange (322) and a second flange (323) connected to two ends of the spring piece body (321); the elastic deformation space (34) is constructed between the spring piece body (321) and the first grounding piece (31); the first flange (322) and the second flange (323) are both in contact with the first grounding piece (31).

5. The grounding assembly (30) according to claim 4, characterized in that: The spring body (321) comprises a first plate (3211), a second plate (3212) and a third plate (3213); the second plate (3212) is connected between the first plate (3211) and the third plate (3213); the second plate (3212) is suitable for fitting with a contact surface corresponding to the grounding end, and is spaced apart from the first grounding member (31); the first plate (3211) is connected between the second plate (3212) and the first flange (322); and the third plate (3213) is connected between the second plate (3212) and the second flange (323).

6. The grounding assembly (30) according to any one of claims 1 to 5, characterized in that: A plurality of the grounding spring sheets (32) are provided, and the plurality of the grounding spring sheets (32) are arranged at intervals.

7. The grounding assembly (30) according to claim 4 or 5, characterized in that: The spring sheet body (321) is provided with a plurality of cutouts (3214) to form a plurality of spring sheets (3215) arranged at intervals.

8. A filter (100), characterized in that: include: A grounding assembly (30) according to any one of claims 1-7.

9. The filter (100) according to claim 8, characterized in that include: A housing (11), wherein two ends of the housing (11) along a first direction respectively have a first opening (111) and a second opening (112); A first magnetic ring (12) and a second magnetic ring (13), wherein in a second direction, the first magnetic ring (12) and the second magnetic ring (13) are arranged side by side in the housing (11); an input conductive sheet (14), the input conductive sheet (14) being located in the housing (11), a first end of the input conductive sheet (14) being located at the first opening (111), a second end of the input conductive sheet (14) passing through the first magnetic ring (12) and extending in the direction of the second opening (112), and the input conductive sheet (14) being electrically connected to the grounding component (30); An output conductive sheet (15), wherein the output conductive sheet (15) is located in the housing (11), a first end of the output conductive sheet (15) is located at the first opening (111) and is spaced apart from the first end of the input conductive sheet (14), a second end of the output conductive sheet (15) is passed through the second magnetic ring (13) and extends in the direction of the second opening (112), and the second end of the output conductive sheet (15) is connected to the second end of the input conductive sheet (14); wherein the first direction is perpendicular to the second direction.

10. The filter (100) according to claim 9, characterized in that The first magnetic ring (12) is a ring-shaped ring connected end to end; and / or the second magnetic ring (13) is a ring-shaped ring connected end to end.

11. The filter (100) according to claim 9, characterized in that Also includes: A first common-mode filter capacitor (17), the first common-mode filter capacitor (17) being located on a side of the first magnetic ring (12) close to the first opening (111), and the first common-mode filter capacitor (17) being connected to the input conductive sheet (14); a second common-mode filter capacitor (18), the second common-mode filter capacitor (18) being located on a side of the first magnetic ring (12) close to the second opening (112), and the second common-mode filter capacitor (18) being connected to the input conductive sheet (14) and the grounding component (30); A third common-mode filter capacitor (19), the third common-mode filter capacitor (19) is located on a side of the second magnetic ring (13) close to the first opening (111), and the third common-mode filter capacitor (19) is connected to the output conductive sheet (15).

12. The filter (100) according to claim 11, characterized in that It also comprises a ground shielding layer (21), which is located between the first magnetic ring (12) and the second magnetic ring (13) and is used to block electromagnetic radiation between the first magnetic ring (12) and the second magnetic ring (13).

13. The filter (100) according to claim 12, characterized in that The input conductive sheet (14) comprises a first input conductive sheet (141), a second input conductive sheet (142) and a third input conductive sheet (143) arranged side by side along a third direction; three first common-mode filter capacitors (17) and three second common-mode filter capacitors (18) are provided, and are respectively connected to the first input conductive sheet (141), the second input conductive sheet (142) and the third input conductive sheet (143); The output conductive sheet (15) comprises a first output conductive sheet (151), a second output conductive sheet (152) and a third output conductive sheet (153) arranged side by side along the third direction; three third common-mode filter capacitors (19) are provided, which are respectively connected to the first output conductive sheet (151), the second output conductive sheet (152) and the third output conductive sheet (153); wherein the first direction and the second direction are perpendicular to the third direction in pairs.

14. The filter (100) according to claim 13, characterized in that Also includes: A connecting conductive sheet (16), wherein the connecting conductive sheet (16) comprises a first connecting conductive sheet (161), a second connecting conductive sheet (162) and a third connecting conductive sheet (163) arranged side by side along the third direction, wherein the first connecting conductive sheet (161) is used to connect the first input conductive sheet (141) and the first output conductive sheet (151), the second connecting conductive sheet (162) is used to connect the second input conductive sheet (142) and the second output conductive sheet (152), and the third connecting conductive sheet (163) is used to connect the third input conductive sheet (143) and the third output conductive sheet (153).

15. The filter (100) according to claim 14, characterized in that Also includes: A differential mode filter capacitor (20), the differential mode filter capacitor (20) being located on a side of the first magnetic ring (12) close to the second opening (112), and the differential mode filter capacitor (20) being connected between the first connecting conductive sheet (161) and the second connecting conductive sheet (162).

16. The filter (100) according to claim 15, characterized in that The connecting conductive sheet (16) further comprises: a protective shell (164), wherein the protective shell (164) is an injection-molded part integrally injection-molded on the outer surfaces of the first connecting conductive sheet (161), the second connecting conductive sheet (162) and the third connecting conductive sheet (163).

17. The filter (100) according to claim 9, characterized in that The housing (11) has a first limiting groove (113) for installing the grounding component (30).

18. The filter (100) according to claim 14, characterized in that Also includes: a second printed circuit board (22) and a second grounding conductive sheet (23), the grounding shielding layer (21) being electrically connected to the first grounding conductive sheet, and the second printed circuit board (22) being used to electrically connect the first common-mode filter capacitor (17) and the second grounding conductive sheet (23); A third printed circuit board (24) and a third grounding conductive sheet (25), wherein the third printed circuit board (24) is used to electrically connect the third common-mode filter capacitor (19) and the third grounding conductive sheet (25), the housing (11) is provided with a second limiting groove (114) for limiting the installation position of the third grounding conductive sheet (25), and the third printed circuit board (24) and the third grounding conductive sheet (25) are fixed to the housing (11) by means of a fastener (26).

19. The filter (100) according to claim 18, characterized in that The housing (11) is an injection-molded part that is integrally injection-molded onto the outer surfaces of the input conductive sheet (14), the output conductive sheet (15) and the first ground conductive sheet.

20. A motor controller (40), characterized in that: include: The filter (100) according to any one of claims 8 to 19.

21. A vehicle, characterized in that: include: The motor controller (40) according to claim 20.

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