Terminal connectors and electric drive assemblies

Abstract

We provide terminal connectors and electric drive assemblies. [Solution] The first connection terminal 11 and the second connection terminal 12 are provided at both ends of the extension body, respectively, to conduct current. Therefore, the extension body is provided with a plurality of first segments, and the plurality of first segments are arranged at intervals to form an intermediate assembly 14 provided within the magnetic ring 31. As a result, the conductive member can pass through the magnetic ring multiple times using the intermediate assembly, and as a result the coupling strength between the terminal block and the magnetic ring is increased, improving the common-mode noise rejection effect of the magnetic ring. On the other hand, there is no need to provide a capacitor in the terminal connector. This simplifies the structure of the terminal connector and allows for miniaturization of the terminal connector.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and particularly to terminal connectors and electric drive assemblies.

Background Art

[0002] A connector provided between a power battery and a motor controller transmits electrical energy from the power battery to the motor controller and further drives a motor via the motor controller. By providing a filter capacitor in the connector, noise caused by external interference and potential difference fluctuations between signal lines can be removed. However, this complicates the structure of the connector and increases its volume. How to simplify the structure of the connector while ensuring the filtering function has become an issue to be solved.

Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a terminal connector and an electric drive assembly. By arranging a plurality of first segments of a conductive member at intervals, an intermediate assembly provided on a magnetic ring is formed. As a result, there is no need to arrange a capacitor in the terminal connector, and miniaturization of the terminal connector can be achieved.

[0004] According to a first aspect of an embodiment of the present invention, a terminal connector is provided, and the terminal connector includes a housing, a filter portion provided on the housing and including a magnetic ring, a terminal block provided on the housing and including a plurality of conductive members arranged at intervals, the conductive member including a first connection end, a second connection end, and an extension body, and at least a part of the first connection end and at least a part of the second connection end being exposed outside the housing, the terminal block, The extension extends from the first connection end to the second connection end and includes a plurality of first segments in the extension direction, the plurality of first segments being spaced apart to form an intermediate assembly, the plurality of intermediate assemblies penetrating the magnetic ring along the axial direction of the magnetic ring and being coupled to the magnetic ring.

[0005] Furthermore, the magnetic ring includes a first side wall in the circumferential direction, the inner surface of the magnetic ring forms a central hole, and the intermediate assembly is located in the central hole. The extension is curved and extends, winding around the first side wall multiple times, with the first and second connecting ends protruding from both ends of the central hole.

[0006] Furthermore, the extension body, in the direction of extension, Connection segment and An extended section that curves to form a accommodating gap, the accommodating gap having a first opening, the first openings of each of the conductive members facing the same direction, the extended section including the first segment, and a portion of the first side wall provided at intervals within the accommodating gap, further including the extended section, The connecting segment is located on the side of the extension section where the first opening is provided, and the extension section is electrically connected to the first or second connecting end via the connecting segment.

[0007] Furthermore, the extension body includes a plurality of extension sections arranged at intervals in the extension direction, and in the arrangement direction of the plurality of extension sections, the plurality of accommodation gaps of the same conductive member overlap at least in part and correspond to the first side wall.

[0008] Furthermore, the aforementioned extended section is The second segment and A third segment provided on the outside of the magnetic ring, wherein the third segment and the first segment extend parallel to each other along the axial direction of the magnetic ring and are connected by the second segment, a portion of the first segment having a first opposing connection end, the third segment having a second opposing connection end, the first and second opposing connection ends located on the side of the extension section away from the second segment, each first opposing connection end located on the same side of the conductive member, and a plurality of the first segments include side segments, each side segment located on the same side of each extension section, one end of which is connected to a first connection end and the other end of which forms a first opposing connection end, further comprising the third segment, The extension is configured such that the connecting segment is connected between two adjacent extension sections, or between an adjacent side segment and an extension section, and both ends of the connecting segment are connected to the first opposing connecting end and the second opposing connecting end, respectively.

[0009] Furthermore, the conductive member includes two extension sections, two connection segments, and a side segment, wherein the first segment of the extension section away from the side segment is connected to the second connection end, and the extension section close to the side segment is connected to one end of the side segment by the connection segment, and the other end of the side segment is connected to the first connection end.

[0010] Furthermore, the connecting segment includes a first connecting block, a second connecting block, and a bent portion connected between the first connecting block and the second connecting block. The first connecting block is connected to the first opposing connecting end and is coplane with the first opposing connecting end, the second connecting block is connected to the second opposing connecting end and is coplane with the second opposing connecting end, and the bent portion is bent from one plane toward the other adjacent plane.

[0011] Furthermore, the housing is an injection-molded part and has an annular housing groove surrounding the intermediate assembly, A portion of the terminal block is provided in the housing as an insert, and the first opposing connection end and the second opposing connection end protrude from the housing.

[0012] Furthermore, a connection window is formed between the first opposing connection end and the second opposing connection end corresponding to the same connection segment. The magnetic ring is provided in the annular housing groove, passing through the connection window, and the connection segment is provided in the connection window.

[0013] Furthermore, the terminal connector further includes a cover portion, the cover portion includes a cover body, and the cover body has an avoidance window. The cover portion is installed over the annular housing groove via the connection window, and the first opposing connection end and the second connection end protrude from the avoidance window.

[0014] Furthermore, the magnetic ring further includes a second side wall connected to the first side wall in the circumferential direction, The connecting window has a first window edge provided at the first opposing connecting end and a second window edge provided at the second opposing connecting end, the first window edge facing the second window edge and parallel to the axial direction of the magnetic ring, and the first window edge and the second window edge are welded to both ends of the connecting segment, In the arrangement direction of the third segment and the first segment, the first and second window edges of the connecting window that are away from the second side wall are located between the first and second window edges of the connecting window that are close to the second side wall.

[0015] Furthermore, the connecting window has a third window edge provided at the first opposing connecting end and a fourth window edge provided at the second opposing connecting end. The third and fourth window edges extend along the alignment direction of the first and third segments, and the opposite sides of the third and fourth window edges form the first opening, and the side edges of the connecting segment are joined to the third and fourth window edges and face the end face of the magnetic ring through the first opening.

[0016] Furthermore, the plurality of conductive members include a first conductive member and a second conductive member, The magnetic ring further includes a second side wall and a third side wall in the circumferential direction, the third side wall being positioned opposite the first side wall with a gap between them, and the second side wall being connected between the third side wall and the first side wall. The extension of the first conductive member winds around the first side wall, the extension of the second conductive member winds around the second side wall, and the extension of the first conductive member extends in the opposite direction to the extension of the second conductive member, with the same number of turns.

[0017] Furthermore, the filter section is The present invention further includes an intermediate magnet that is positioned at a distance between the first conductive member and the second conductive member and is coupled to the first conductive member, the second conductive member, and the magnetic ring.

[0018] Furthermore, the intermediate magnet has a plate-like structure, and the plate-like structure has a first plate surface and a second plate surface. The first plate surface faces the first side wall, and a first bonding space is formed between the first plate surface and the first side wall; the second plate surface faces the third side wall, and a second bonding space is formed between the second plate surface and the third side wall; The intermediate assembly of the first conductive member and the intermediate assembly of the second conductive member are arranged in the first bonding space and the second bonding space, respectively.

[0019] Furthermore, the housing has a mounting groove, the mounting groove includes an annular housing groove and an intermediate groove that communicate with each other, the intermediate groove is located in the center of the annular housing groove and between the two intermediate assemblies, The magnetic ring is provided in the annular accommodation groove, the intermediate magnet is provided in the intermediate groove, and a partial filling gap is formed between the filter portion and the inner wall of the mounting groove. The terminal connector further includes an adhesive for filling the filling gap.

[0020] Furthermore, a part of the first segment has a first opposing connection end. The terminal connector further includes a cover portion, the cover portion includes a cover body and a partition plate, an avoidance window is opened in the cover body. The cover body is covered and installed in the annular accommodation groove, the first opposing connection end and the second connection end protrude from the avoidance window, the partition plate is simultaneously located between the two intermediate assemblies and between the two second connection ends, and the edge of the partition plate extends into the intermediate groove, and the filling gap is formed between the magnetic ring (31), the mounting groove and the cover body.

[0021] Furthermore, the cross-section in the extension direction of the central hole is a rounded rectangle, the first side wall and the third side wall respectively form two short sides of the rounded rectangle. The two intermediate assemblies are arranged along the long side of the rounded rectangle, and a plurality of the first segments belonging to the same intermediate assembly are arranged along the short side of the rounded rectangle.

[0022] According to a second aspect, an embodiment of the present invention further provides an electric drive assembly, the electric drive assembly includes a power module, a motor controller, and the terminal connector described in the above first aspect, the first connection end is connected to the power module, and the second connection end is connected to the motor controller.

Effect of the Invention

[0023] In the terminal connector and electric drive assembly according to the embodiment of the present invention, the first and second connection ends are provided at both ends of the extension body, respectively, to conduct current. Therefore, the extension body is provided with a plurality of first segments, and the plurality of first segments are arranged at intervals to form an intermediate assembly provided within the magnetic ring. As a result, the conductive member can pass through the magnetic ring multiple times using the intermediate assembly, thereby increasing the coupling strength between the terminal block and the magnetic ring and improving the common-mode noise rejection effect of the magnetic ring. On the other hand, there is no need to provide a capacitor in the terminal connector. This simplifies the structure of the terminal connector and allows for miniaturization of the terminal connector. [Brief explanation of the drawing]

[0024] The above-mentioned and other objectives, features, and advantages of the present invention will become more apparent from the following description relating to embodiments of the present invention with reference to the accompanying drawings. [Figure 1] This is a schematic diagram showing the structure of one side of a terminal connector according to an embodiment of the present invention. [Figure 2] This is a schematic diagram showing the structure of the other side of the terminal connector according to an embodiment of the present invention. [Figure 3] This is an exploded schematic diagram of one side of a terminal connector according to an embodiment of the present invention. [Figure 4] This is a schematic diagram of the other side of the terminal connector according to an embodiment of the present invention. [Figure 5] This is a schematic cross-sectional view along line AA in Figure 1. [Figure 6] This is a schematic diagram showing the structure of one side of a conductive member according to an embodiment of the present invention. [Figure 7] This is a schematic diagram showing the structure of the other side of the conductive member according to an embodiment of the present invention. [Figure 8] This is a schematic exploded view of a terminal block according to an embodiment of the present invention. [Figure 9] This is a schematic diagram showing the structure of the filter section according to an embodiment of the present invention. [Figure 10] This is a schematic diagram showing the structure of the extended section according to an embodiment of the present invention. [Figure 11] This is a schematic diagram showing the structure of the extended section and side segment according to an embodiment of the present invention. [Figure 12] This is a schematic diagram showing the circuit of an electric drive assembly according to an embodiment of the present invention. [Modes for carrying out the invention]

[0025] The present invention will be described below based on embodiments, but the present invention is not limited to these embodiments. In the detailed description of the present invention below, several specific details will be explained in detail. The present invention can be fully understood by those skilled in the art even without these details. To avoid confusion regarding the essence of the present invention, well-known methods, processes, flows, components and circuits will not be described in detail.

[0026] Furthermore, it should be understood by those skilled in the art that the attached drawings are provided herein for illustrative purposes only and are not necessarily to scale.

[0027] Unless explicitly required by context, similar terms such as “includes” and “equipment” throughout this application should be interpreted as inclusive, not exclusive, and meaning “includes, but not limited to.”

[0028] In this description of the invention, terms such as "first," "second," etc., are used solely for explanatory purposes and should not be understood as expressing or suggesting relative importance. Furthermore, in this description of the invention, unless otherwise specified, "multiple" means two or more.

[0029] Unless otherwise specified, terms such as “attachment,” “interconnection,” “connection,” and “fixing” should be understood in a broad sense. For example, they may be fixedly connected, detachably connected or integrally formed, directly connected, indirectly connected via an intermediate medium, or even internal communication or interaction between two elements. Those skilled in the art will understand the specific meaning of these terms in this application depending on the actual situation.

[0030] For the sake of clarity, spatially related terms such as “inside,” “outside,” “down,” “below,” “underside,” “up,” and “top” are used in this specification to describe the relationship between one element or feature and another as illustrated in the drawings. As to be understood, spatially related terms may be intended to encompass different orientations of the equipment in use or operation other than those illustrated. For example, if the illustrated equipment is turned over, an element described as being “below” or “below” another element or feature would be located “above” the other element or feature. Thus, the illustrative term “down” may include both upward and downward orientations. The equipment can also be oriented in other directions (90-degree rotation or other directions), and the spatially related expressions used herein should be interpreted accordingly.

[0031] Figures 1 and 2 are schematic diagrams showing the structure of the terminal connector according to this embodiment. Figures 3 and 4 are schematic exploded views of the terminal connector according to this embodiment.

[0032] In some embodiments, as shown in Figures 1 and 2, the terminal connector in this embodiment includes a housing 2, a terminal block 1 provided on the housing 2, a filter section 3, and a cover section 5. Referring further to Figures 3 and 4, the terminal block 1 includes a plurality of conductive members 4 arranged at intervals. Each conductive member 4 is used to form an electrical passage. The conductive member 4 includes, in the direction of extension, a first connecting end 11, an extension body 13, and a second connecting end 12 in that order. At least some of the first connecting ends 11 and at least some of the second connecting ends 12 are exposed to the outside of the housing 2.

[0033] Specifically, the filter unit 3 in this embodiment is used to filter noise on the terminal block 1. This noise includes, but is not limited to, common-mode noise and differential-mode noise. This prevents noise on the terminal block 1 from interfering with the electrical equipment connected to the second connection terminal 12. Common-mode noise refers to the same noise occurring simultaneously at the positive and negative terminals of a signal line. That is, the two signal lines produce potential fluctuations in the same direction with respect to ground (or some reference point). Differential-mode noise refers to noise occurring between the positive and negative terminals of a signal line, that is, noise generated by fluctuations in the potential difference between the two signal lines.

[0034] Specifically, as shown in Figure 1, the first connection end 11 extends linearly and has a first contact surface. The second connection end 12 extends linearly and has a second contact surface. The first contact surface is exposed to the outside of the housing 2, and both the first and second contact surfaces are planar and face upwards towards the terminal connector, allowing current to be conducted from the first connection end 11 to the second connection end 12, or from the second connection end 12 to the first connection end 11. This allows the first connection end 11 and the second connection end 12 to be electrically connected to other equipment.

[0035] Optionally, the conductive member 4 in this embodiment may be made of a conductive material such as copper (e.g., T2 copper) or an alloy. The housing 2 may be made of a non-conductive material such as rubber, plastic, or synthetic resin. This ensures a creepage distance between the multiple conductive members 4 that are spaced apart in the housing 2.

[0036] Figure 5 is a cross-sectional view along line AA in Figure 1. The illustrated filter section 3 includes a magnetic ring 31 and an intermediate magnet 32 ​​positioned inside the magnetic ring 31. The filter section 3 is fixed inside the terminal connector when the housing 2 is fitted into the cover section 5. The magnetic ring 31 may be made of a nanocrystalline material. The magnetic ring 31 may filter common-mode noise.

[0037] Figures 6 and 7 are schematic diagrams showing the structure of the conductive member 4, where the conductive member 4 in Figure 6 is the first conductive member 4a, and the conductive member 4 in Figure 7 is the second conductive member 4b. The arrows on the conductive member 4 in the two figures indicate a specific current flow, i.e., the current flow differs depending on the connection method of the terminal connector. Furthermore, the winding directions of the first conductive member 4a and the second conductive member 4b are opposite to each other.

[0038] Figure 8 is an exploded schematic diagram of the terminal block 1 in this embodiment.

[0039] In some embodiments, as shown in Figures 5 to 8, the extension 13 extends from a first connecting end 11 to a second connecting end 12 and includes a plurality of first segments 41 in the extension direction. The plurality of first segments 41 are spaced apart to form an intermediate assembly 14, which penetrates the magnetic ring 31 along the axial direction of the magnetic ring 31 and is coupled to the magnetic ring 31. The extension 13 can be configured as a strip structure, in which the plurality of first segments 41 are spaced apart in the extension direction of the strip structure and distributed at intervals in the thickness direction of the strip structure.

[0040] In this embodiment, the number of first segments 41 may be two, three, or more. When multiple first segments 41 are provided, the coupling strength between the conductive member 4 and the magnetic ring 31 can be increased compared to when only a single first segment 41 is provided, and the filtering effect of the filter section 3 against noise of a specific frequency on the terminal block 1 can be improved. The magnetic ring 31 can filter common-mode noise on the terminal block 1 and reduce interference of common-mode noise with electrical equipment connected to the second connection terminal 12.

[0041] As described above, in the terminal connector of this embodiment, the multiple conductive members 4 and filter section 3 of the terminal block 1 are provided in the housing 2, and the first connection end 11 and the second connection end 12 are provided at both ends of the extension body 13, respectively, thereby conducting current. Therefore, the extension body 13 is provided with multiple first segments 41, and the multiple first segments 41 are arranged at intervals to form an intermediate assembly 14 provided in the magnetic ring 31. As a result, the conductive members 4 can pass through the magnetic ring 31 multiple times using the intermediate assembly 14, and as a result, the coupling strength between the terminal block 1 and the magnetic ring 31 is increased, and the filtering effect of the magnetic ring 31 against common-mode noise of a specific frequency is improved. On the other hand, there is no need to provide a capacitor in the terminal connector. As a result, the structure of the terminal connector is simplified and the terminal connector can be made smaller.

[0042] Figure 9 is a schematic diagram showing the structure of the filter unit 3 according to this embodiment.

[0043] In some embodiments, as shown in Figures 6 and 9, the magnetic ring 31 includes a first side wall 311 in the circumferential direction. The inner surface of the magnetic ring 31 forms a central hole 315, and the intermediate assembly 14 is provided in the central hole 315. The extension 13 extends in a curved manner and wraps around the first side wall 311 multiple times, with a first connecting end 11 and a second connecting end 12 protruding from both ends of the central hole 315.

[0044] As a result, since the conductive member 4 in this embodiment is provided around the first side wall 311, the coupling strength between the conductive member 4 and the magnetic ring 31 can be increased, and the current passes through the central hole 315 multiple times along the extension 13, further improving the filtering effect of the magnetic ring 31. Furthermore, the volume occupied by the terminal block 1 can be reduced.

[0045] The extension 13 may optionally wrap around the first side wall 311 two, three, or more times. Taking Figure 6 as an example, the extension 13 in the figure wraps around the first side wall 311 twice and then wraps around it for another half turn. As a result, the first connection end 11 and the second connection end 12 are located on opposite sides of the magnetic ring 31, respectively. This makes the installation of the terminal connector easier.

[0046] In some embodiments, as shown in Figures 6 and 8, the extension 13 further includes a connecting segment 44 and an extension section 15 in the extension direction. The extension section 15 is curved to form a accommodating gap 151.

[0047] Referring further to Figure 4, the accommodating gap 151 has a first opening 152, the first openings 152 of each conductive member 4 face the same direction, the extension section 15 includes the first segment 41, a portion of the first side wall 311 is provided within the accommodating gap 151, and the first side wall 311 is not in contact with the accommodating gap 151. The connecting segment 44 is located on the side of the extension section 15 where the first opening 152 is provided, and the extension section 15 is electrically connected to the first connecting end 11 or the second connecting end 12 via the connecting segment 44.

[0048] In this embodiment, the magnetic ring 31 may be provided in the accommodating gap 151 through the first opening 152 during the assembly of the terminal connector. In this configuration, each region of the extension 13 is in an intermittent state. Subsequently, when the connecting segment 44 is provided in the first opening 152, each region of the extension 13 is electrically superimposed via the connecting segment 44, thereby forming an electrical path. This simplifies the installation of the terminal block 1, allows the conductive member 4 to be wound around the first side wall 311 in a substantially helical manner, improves the coupling strength between the conductive member 4 and the magnetic ring 31, and makes the structure of the terminal block 1 more compact.

[0049] Figure 10 is a schematic diagram showing the structure of the extension section 15 according to this embodiment. In the figure, the outline of the extension section 15 located at the bottom is shown by a thick solid line, and only one extension section 15 is shown on the left side.

[0050] In some embodiments, as shown in Figure 8, the extension 13 includes a plurality of spaced extension sections 15 in the extension direction. Referring further to Figure 10, in the direction of arrangement of the plurality of extension sections 15, the plurality of accommodating gaps 151 of the same conductive member 4 overlap at least partially and correspond to the first side wall 311. This allows the magnetic ring 31 to be fitted to the outside of the intermediate assembly 14 through the accommodating gaps 151, and mutual interference between the first side wall 311 and the extension sections 15 is avoided.

[0051] Preferably, the multiple extension sections 15 extend in different planes, and the edges of the multiple accommodating gaps 151 completely overlap, so that the distance from the first side wall 311 to each accommodating gap 151 is maintained uniformly, thereby allowing the extension 13 to always be securely coupled to the magnetic ring 31 as it passes through the central hole 315.

[0052] In some embodiments, as shown in Figures 6 and 8, the extension section 15 further includes a second segment 42 and a third segment 43. The third segment 43 is located on the outside of the magnetic ring 31, and the third segment 43 and the first segment 41 extend parallel to each other along the axial direction of the magnetic ring 31 and are connected by the second segment 42, a portion of which the first segment 41 has a first opposing connection end 153, and the third segment 43 has a second opposing connection end 154, with the first opposing connection end 153 and the second opposing connection end 154 located on the side of the extension section 15 away from the second segment 42. Each first opposing connection end 153 is located on the same side of the conductive member 4, and the plurality of first segments 41 include one side segment 411. The side segment 411 is located on the same side of each extension section 15, with one end connected to the first connection end 11 and the other end forming the first opposing connection end 153. The connecting segment 44 is connected between two adjacent extension sections 15, or between an adjacent side segment 411 and an extension section 15, and both ends of the connecting segment 44 are connected to the first opposing connection end 153 and the second opposing connection end 154, respectively.

[0053] Specifically, the first segment 41 is provided as a side segment 411 on the upper part of the terminal block 1, and the current supplied to the terminal block 1 first passes through the side segment 411 and then through the magnetic ring 31, thereby filtering out common-mode noise. The extension section 15 can be configured as a U-shaped structure with the notch facing the same side of the housing 2. The extension section 15 can be formed by laser cutting or press forming of a metal sheet, thereby reducing the processing cost of the terminal block 1.

[0054] In some embodiments, as shown in Figure 8, the connecting segment 44 includes a first connecting block 441, a second connecting block 442, and a bent portion 443 connected between the first connecting block 441 and the second connecting block 442. Referring further to Figure 6, the first connecting block 441 is connected to a first opposing connecting end 153 and is coplane with the first opposing connecting end 153. The second connecting block 442 is connected to a second opposing connecting end 154 and is coplane with the second opposing connecting end 154, and the bent portion 443 bends from one plane toward the other adjacent plane.

[0055] In this embodiment, the first connecting block 441 and the second connecting block 442 are in the same plane as the first opposing connecting end 153 and the second opposing connecting end 154, respectively. Therefore, it is easy for the worker to weld (for example, laser weld) the first opposing connecting end 153 and the second opposing connecting end 154 to the first connecting block 441 and the second connecting block 442, reducing the difficulty of welding and ensuring the mechanical strength of the conductive member 4 after welding.

[0056] In some embodiments, as shown in Figures 2 and 4, the housing 2 is an injection-molded part and has an annular housing groove 21 surrounding the intermediate assembly 14. The terminal block 1 is provided in the housing 2 as an insert, with the first opposing connection end 153 and the second opposing connection end 154 protruding from the housing 2.

[0057] Specifically, the housing 2 and some of the conductive members 4 in this embodiment can be manufactured by insert molding, so that the intermediate assembly 14 is fixed inside the housing 2 and the first opposing connection end 153 and the second opposing connection end 154 are exposed outside the housing 2 to form an injection-molded assembly. In this way, the operator can first place the magnetic ring 31 in the annular housing groove 21 and then connect the connection segment 44 between the first opposing connection end 153 and the second opposing connection end 154. This allows the extension 13 to surround the side walls of the magnetic ring 31.

[0058] In some embodiments, as shown in Figure 4, a connection window 155 is formed between a first opposing connection end 153 and a second opposing connection end 154 corresponding to the same connection segment 44. In Figure 4, the approximate outline of the lower connection window 155 is shown by a dashed line. The magnetic ring 31 is provided in the annular housing groove 21, passing through the connection window 155, and further, referring to Figure 8, the connection segment 44 is provided in the connection window 155.

[0059] In this embodiment, the connecting segment 44 is fixedly connected to the extension section 15 via the connecting window 155. Before the connecting segment 44 is connected to the extension section 15, the annular housing groove 21 is open towards the terminal connector via the connecting window 155, allowing the magnetic ring 31 to pass through the connecting window 155 and be inserted into the annular housing groove 21.

[0060] In some embodiments, as shown in Figure 3, the terminal connector further includes a cover portion 5. Referring further to Figure 4, the cover portion 5 includes a cover body 51, the cover body 51 having an avoidance window 511. The cover portion 5 is installed over the annular housing groove 21 via a connection window 155, and the first opposing connection end 153 and the second connection end 12 protrude from the avoidance window 511.

[0061] Specifically, the cover body 51 includes a side plate 512, which extends around the periphery to form a bypass window 511. When the cover body 51 covers the annular housing groove 21, the side plate 512 can protect the magnetic ring 31. In this configuration, a portion of the side plate 512 can just pass through the connection window 155. Thus, the cover portion 5 is compatible with the structure of the injection-molded assembly.

[0062] In some embodiments, as shown in Figure 9, the magnetic ring 31 further includes a second side wall 312 connected to a first side wall 311 in the circumferential direction. Referring further to Figure 4, the connection window 155 has a first window edge 1551 provided at a first opposing connection end 153 and a second window edge 1552 provided at a second opposing connection end 154, the first window edge 1551 facing the second window edge 1552 and parallel to the axial direction of the magnetic ring 31, and the first window edge 1551 and the second window edge 1552 are welded to both ends of the connection segment 44, respectively. In the alignment direction of the third segment 43 and the first segment 41, the first window edges 1551 and the second window edges 1552 of the connection window 155 that is away from the second side wall 312 are located between the first window edges 1551 and the second window edges 1552 of the connection window 155 that is close to the second side wall 312.

[0063] Figure 11 is a schematic diagram showing the structure of the extension section 15 and the side segment 411 according to this embodiment. The contour of the side segment 411 located at the top of the figure is shown by a dashed line, and the contour of the extension section 15 located at the bottom is shown by a thick solid line.

[0064] Specifically, as shown in Figure 11, in the direction of arrangement of the two extension sections 15, the distance between the first window edge 1551 and the second window edge 1552 in the lower connecting window 155 is distance L1, and the distance between the first window edge 1551 and the second window edge 1552 in the upper connecting window 155 is distance L2. Distance L1 is smaller than distance L2. That is, the first window edge 1551 and the second window edge 1552 of the lower section are inside the upper connecting window 155.

[0065] Specifically, the connecting segment 44 includes a first connecting segment 44a and a second connecting segment 44b, the first connecting segment 44a and the second connecting segment 44b extending parallel to each other, and the length of the first connecting segment 44a is shorter than that of the second connecting segment 44b. When the operator places the first connecting segment 44a in the lower connecting window 155, the welding positions of the first connecting segment 44a and the first window edge 1551 and the second window edge 1552 are directed upwards toward the injection-molded assembly through the upper connecting window 155. In this way, the operator can weld the second connecting segment 44b using a laser welding beam or welding head, and the upper connecting window 155 can serve as a deflection for the beam or welding head. After the welding of the second connecting segment 44b is complete, the first connecting segment 44a can be welded further.

[0066] Specifically, the conductive member 4 includes two extension sections 15, a first connection segment 44a, a second connection segment 44b, and a side segment 411. The first segment 41 of the extension section 15 that is away from the side segment 411 is connected to the second connection end 12, and the extension section 15 that is close to the side segment 411 is connected to the side segment 411 via the second connection segment 44b, and the side segment 411 is connected to the first connection end 11.

[0067] In some embodiments, as shown in Figure 4, the connection window 155 has a third window edge 1553 provided on the first opposing connection end 153 and a fourth window edge 1554 provided on the second opposing connection end 154. The third window edge 1553 and the fourth window edge 1554 extend along the alignment direction of the first segment 41 and the third segment 43, and the opposite sides of the third window edge 1553 and the fourth window edge 1554 form a first opening 152. Referring further to Figure 6, the side of the connection segment 44 is joined to the third window edge 1553 and the fourth window edge 1554 and faces the end face of the magnetic ring 31 through the first opening 152.

[0068] In this embodiment, the third window edge 1553 and the fourth window edge 1554 have a positional limiting function for the connecting segment 44, ensuring positional accuracy between the connecting segment 44 and the extension section 15 after welding. At the same time, the third window edge 1553 and the fourth window edge 1554 can also increase the contact area between the connecting segment 44 and the extension section 15, which helps to improve the current conduction effect.

[0069] Specifically, as shown in Figure 10, a second opening 1555 is provided on the side of the connecting window 155 away from the first opening 152, and the accommodating gap 151 is open toward the extension section 15 through the second opening 1555. The magnetic ring 31 can enter the accommodating gap 151 by passing through the second opening 1555 and the first opening 152 in sequence.

[0070] In some embodiments, as shown in Figures 6-7, the multiple conductive members 4 include a first conductive member 4a and a second conductive member 4b. Referring further to Figure 9, the magnetic ring 31 further includes a third side wall 313 in the circumferential direction, the third side wall 313 being spaced apart from and opposite to the first side wall 311. The extension 13 of the first conductive member 4a winds around the first side wall 311, the extension 13 of the second conductive member 4b winds around the second side wall 312, and the extension 13 of the first conductive member 4a extends in the opposite direction to the extension 13 of the second conductive member 4b, with the same number of turns.

[0071] In this embodiment, the first conductive member 4a and the second conductive member 4b can be used as a positive electrode transmission line and a negative electrode transmission line, respectively, thereby supplying DC power to electrical equipment. At the same time, the two extensions 13 are wound in opposite directions and have the same number of turns. In this way, the inductance values ​​of the positive electrode transmission line and the negative electrode transmission line can be matched, contributing to stable current conduction. Furthermore, different regions of the magnetic ring 31 are also made fully utilized.

[0072] In some embodiments, as shown in Figure 3, the filter unit 3 further includes an intermediate magnet 32. The intermediate magnet 32 ​​is provided with a gap between the first conductive member 4a and the second conductive member 4b, and is coupled to the first conductive member 4a, the second conductive member 4b, and the magnetic ring 31. In this embodiment, the intermediate magnet 32 ​​works in cooperation with the magnetic ring 31 to filter differential mode noise on the filter terminal block 1. This avoids the need to provide a capacitor in the terminal connector, further simplifying the structure of the terminal connector.

[0073] In some embodiments, as shown in Figures 3 and 9, the intermediate magnet 32 ​​is a plate-like structure having a first plate surface 321 and a second plate surface 322. The first plate surface 321 faces the first side wall 311, forming a first coupling space 331 between the first plate surface 321 and the first side wall 311, and the second plate surface 322 faces the third side wall 313, forming a second coupling space 332 between the second plate surface 322 and the third side wall 313. The intermediate assembly 14 of the first conductive member 4a and the intermediate assembly 14 of the second conductive member 4b are placed in the first coupling space 331 and the second coupling space 332, respectively.

[0074] In this embodiment, the intermediate magnet 32 ​​and the first side wall 311 correspond to the two plates of the first capacitor, and the intermediate magnet 32 ​​and the third side wall 313 can correspond to the two plates of the second capacitor. The magnetic field lines of the first capacitor, which are linked to the second capacitor, pass through the two intermediate assemblies 14, thereby filtering the differential mode noise of the two intermediate assemblies 14.

[0075] Optionally, epoxy resin may be provided on the outer surface of the magnetic ring 31 in this embodiment, thereby allowing for greater standardization of the outer shape of the magnetic ring 31. The intermediate magnet 32 ​​may also be made of ferrite.

[0076] In some embodiments, as shown in Figure 4, the housing 2 has a mounting groove 23, which includes an annular housing groove 21 and an intermediate groove 22 that communicate with each other, with the intermediate groove 22 located in the center of the annular housing groove 21 and between two intermediate assemblies 14. Referring further to Figure 5, the magnetic ring 31 is provided in the annular housing groove 21, the intermediate magnet 32 ​​is provided in the intermediate groove 22, and a partial filling gap 231 is formed between the filter portion 3 and the inner wall of the mounting groove 23. The terminal connector further includes a filling adhesive 6 for filling the filling gap 231. The filling adhesive 6 in this embodiment can simplify the method of fixing the filter portion 3 to the housing 2.

[0077] Specifically, the filling adhesive 6 in this embodiment may be a silicone rubber-based adhesive. For example, a two-component silicone rubber, RTV silicone rubber adhesive, or heat-vulcanizing silicone rubber adhesive (HTV). Once the filling adhesive 6 has cured, the filter portion 3 can be fixed inside the housing 2. Furthermore, the filter portion 3 can provide impact resistance and thermal conductivity.

[0078] In some embodiments, as shown in Figure 8, a portion of the first segment 41 has a first opposing connection end 153. Referring further to Figures 4 and 5, the terminal connector further includes a cover portion 5, which includes a cover body 51 and a partition plate 52, the cover body 51 having an opening for avoidance windows 511. The cover body 51 is installed covering the annular housing groove 21, and the first opposing connection end 153 and the second connection end 12 protrude from the avoidance windows 511. Referring further to Figure 1, the partition plate 52 is simultaneously positioned between two intermediate assemblies 14 and between two second connection ends 12, and the edge of the partition plate 52 extends into the intermediate groove 22, forming a filling gap 231 between the magnetic ring 31 and the mounting groove 23 and the cover body 51. In this way, the filling adhesive 6 can fix the cover portion 5 to the housing 2.

[0079] Specifically, as shown in Figure 3, the partition plate 52 in this embodiment is used to separate the first connection end 11 and the second connection end 12, preventing the two conductive members 4 exposed to the outside of the housing 2 from contacting each other and short-circuiting. At the same time, sufficient creepage distance can be ensured between the first conductive member 4a and the second conductive member 4b. The housing 2 further includes two intermediate blocks 25 and two intermediate plates 24, the outer surfaces of the two intermediate blocks 25 being used to form the inner walls of the annular housing groove 21, the two intermediate blocks 25 being located on opposite sides of the two intermediate blocks 25, the opposite sides of the two intermediate blocks 25 forming an intermediate groove 22, the two intermediate blocks 25 extending to the outside of the annular housing groove 21, and the edges of the two intermediate blocks 25 extending through the avoidance window 511 to both sides of the partition plate 52 edge, thereby restricting the position of the cover portion 5.

[0080] Preferably, the cover body 51 further includes a flap 513, which is provided on the edge of the cover body 51 and is bent toward the housing 2. When the cover portion 5 is fixed to the housing 2, the upper part of the annular housing groove 21 is inserted into the flap 513, thereby protecting the filter portion 3 and suppressing the outflow of the filling adhesive 6 to the outside.

[0081] In some embodiments, as shown in Figures 2 and 4, the cover portion 5 further includes a stopper 53, which is provided protruding from the side of the cover body 51 opposite to the annular housing groove 21, and is located on the side of the first connection end 11 and the second connection end 12 opposite to the first and second contact surfaces. At the same time, the stopper 53 is connected to the partition plate 52, thereby reinforcing the partition plate 52. When electrical equipment is joined to the first and second contact surfaces, the stopper 53 limits the bending displacement of the first connection end 11 and the second connection end 12, preventing excessive bending deformation. The cover portion 5 can be made of injection-molded parts such as polyurethane, which ensures sufficient strength of the cover portion 5.

[0082] In some embodiments, as shown in Figure 9, the cross-section in the extension direction of the central hole 315 is a rounded rectangle, and the first side wall 311 and the third side wall 313 each form two short sides of the rounded rectangle. The two intermediate assemblies 14 are arranged along the long sides of the rounded rectangle, and the multiple first segments 41 belonging to the same intermediate assembly 14 are arranged along the short sides of the rounded rectangle. In this way, the shape of the magnetic ring 31 is improved to match the first conductive member 4a and the second conductive member 4b.

[0083] Specifically, the magnetic ring 31 further includes a fourth side wall 314. The fourth side wall 314 is positioned parallel to and spaced apart from the second side wall 312. The intermediate magnet 32 ​​is located at the center of the magnetic ring 31 and is at the same distance from the first side wall 311 and the third side wall 313. The intermediate assembly 14 of the first conductive member 4a and the second conductive member 4b is positioned symmetrically on both sides of the intermediate magnet 32 ​​and does not come into contact with the filter portion 3.

[0084] It is easy to understand that the coupling strength between the conductive member 4 and the filter section 3 is positively correlated with the inductance value of the conductive member 4. The inductance value of the conductive member 4 is given by the equation L=N 2 It can be estimated according to ×AL, where N is the number of turns of the conductive member 4 in the magnetic ring 31, and AL is the inductance value per turn of the conductive member 4. As can be seen from the above, when the conductive member 4 contains three first segments 41, that is, when the conductive member 4 passes through the magnetic ring 31 three times, the inductance value of the conductive member 4 increases by approximately nine times compared to the case of a single turn.

[0085] Table 1 shows a numerical comparison of inductance and impedance when the terminal connector is wound with a single turn (one first segment 41) and with three turns (three first segments 41) at 10kHz, 100kHz, and 30MHz. The unit of inductance in the table is microhenries (uH). The unit of impedance is ohms (Ω). Taking 10kHz as an example, the inductance value when wound with three turns is approximately nine times the inductance value when wound with a single turn. This shows that the filter section 3 can effectively remove noise from the conductive member 4.

[0086] Table 2 shows the insertion loss when the terminal connector is wound with a single turn (one first segment 41) and a triple turn (three first segments 41) at different frequencies. Taking 10kHz as an example, the insertion loss with three turns is smaller than with a single turn. Therefore, the filter section 3 can be effectively coupled with the terminal block 1 to remove noise from the conductive member 4.

[0087] The method for attaching the terminal connector in the above-described embodiment is as follows. In some embodiments, first, the extension section 15 is manufactured by laser cutting or press working. As shown in Figure 3, the first nut 16 is fixed to the first connection end 11 and aligned with the through hole of the first connection end 11. Next, the extension section 15 and the first nut 16 are injection molded with the housing 2 by an insert molding process. Furthermore, after applying the filling adhesive 6 into the mounting groove 23, the magnetic ring 31 and intermediate magnet 32 ​​are placed in the annular housing groove 21 and intermediate groove 22, respectively. The filling adhesive 6 is applied to the outer end face of the magnetic ring 31. Next, the cover portion 5 is installed over the annular housing groove 21. Then, the first connection segment 44a and the second connection segment 44b are sequentially welded to the corresponding connection window 155. Finally, the second nut 17 is fixed to the second connection end 12 and aligned with the through hole of the second connection end 12.

[0088] Figure 12 is a schematic diagram showing the circuit of the electric drive assembly according to this embodiment.

[0089] In any embodiment, as shown in Figure 12, the terminal connector in the above embodiment can be applied to an electric drive assembly. The electric drive assembly further includes a power module 7 and a motor controller 8.

[0090] Specifically, the power module 7 includes a power battery. The motor controller 8 (Motor Control Unit) is used to control the rotation of the motor. The first conductive member 4a and the second conductive member 4b are connected between the power module 7 and the motor controller 8 as the positive and negative transmission lines, respectively.

[0091] As described above, in the electrically driven assembly of this embodiment, the multiple conductive members 4 and filter section 3 of the terminal block 1 of the terminal connector are provided in the housing 2, and the first connection end 11 and the second connection end 12 are provided at both ends of the extension body 13, respectively, thereby conducting current. Therefore, the extension body 13 is provided with multiple first segments 41, and the multiple first segments 41 are arranged at intervals to form an intermediate assembly 14 provided in the magnetic ring 31. As a result, the conductive members 4 can pass through the magnetic ring 31 multiple times using the intermediate assembly 14, and as a result, the coupling strength between the terminal block 1 and the magnetic ring 31 is increased, and the common-mode noise rejection effect of the magnetic ring 31 is improved. On the other hand, there is no need to provide a capacitor in the terminal connector. As a result, the structure of the terminal connector is simplified and the terminal connector can be made smaller.

[0092] In any embodiment, the electric drive assembly in the above-described embodiment can be applied to a vehicle. The vehicle may be a pure electric vehicle or a hybrid electric vehicle.

[0093] As described above, in the vehicle of this embodiment, the multiple conductive members 4 and filter section 3 of the terminal block 1 of the terminal connector are provided in the housing 2, and the first connection end 11 and the second connection end 12 are provided at both ends of the extension body 13, respectively, thereby conducting current. Therefore, the extension body 13 is provided with multiple first segments 41, and the multiple first segments 41 are arranged at intervals to form an intermediate assembly 14 provided in the magnetic ring 31. As a result, the conductive members 4 can pass through the magnetic ring 31 multiple times using the intermediate assembly 14, and as a result, the coupling strength between the terminal block 1 and the magnetic ring 31 is increased, and the common-mode noise rejection effect of the magnetic ring 31 is improved. On the other hand, there is no need to provide a capacitor in the terminal connector. As a result, the structure of the terminal connector is simplified and the terminal connector can be made smaller.

[0094] The above describes only preferred embodiments of the present invention and does not limit it, and various modifications and variations are possible for those skilled in the art. Modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are covered by the scope of the present invention. [Explanation of symbols]

[0095] 1-Terminal block, 11-First connection end, 12-Second connection end, 13-Extension body, 14-Intermediate assembly, 15-Extension section, 151-Accommodation gap, 152-First opening, 153-First opposing connection end, 154-Second opposing connection end, 155-Connection window, 1551-First window edge, 1552-Second window edge, 1553-Third window edge, 1554-Fourth window edge, 1555-Second opening, 16-First nut, 17-Second nut, 2-Housing, 21-Annular accommodation groove, 22-Intermediate groove, 23-Mounting groove, 231-Filling gap, 24-Intermediate plate, 25-Intermediate block, 3-Filter section, 31-Magnetic ring, 311-First side wall, 312-Second side wall, 313-Third side wall, 314-Fourth side wall, 315-Center hole 32-Intermediate magnet, 321-First plate surface, 322-Second plate surface, 331-First bonding space, 332-Second bonding space, 4-Conductive member, 41-First segment, 411-Side segment, 42-Second segment, 43-Third segment, 44-Connecting segment, 441-First connecting block, 442-Second connecting block, 443-Bent section, 44a-First connecting segment, 44b-Second connecting segment, 4a-First conductive member, 4b-Second conductive member, 5-Cover section, 51-Cover body, 511-Avoidance window, 512-Side plate, 513-Flap, 52-Partition plate, 53-Stopper, 6-Filling adhesive, 7-Power module, 8-Motor controller

Claims

1. A filter section (3) including a magnetic ring (31), A terminal block (1) including a plurality of conductive members (4) arranged at intervals, wherein the conductive members (4) include a first connection end (11), a second connection end (12), and an extension (13), and the conductive members are made of copper, and the terminal block (1), Includes, The extension (13) extends from the first connection end (11) to the second connection end (12) and includes a plurality of first segments (41) in the extension direction, the plurality of first segments (41) being spaced apart to form an intermediate assembly (14), the plurality of intermediate assemblies (14) passing through the magnetic ring (31) along the axial direction of the magnetic ring (31) and being coupled to the magnetic ring (31). A terminal connector characterized by the following features.

2. The terminal connector includes a housing (2), and at least a portion of the first connection end (11) and at least a portion of the second connection end (12) are exposed to the outside of the housing (2), and both the first connection end (11) and the second connection end (12) extend in a linear manner. The magnetic ring (31) includes a first side wall (311) in the circumferential direction, the inner surface of the magnetic ring (31) forms a central hole (315), and the intermediate assembly (14) is located in the central hole (315). The extension (13) extends in a curved manner and wraps around the first side wall (311) multiple times, and the first connecting end (11) and the second connecting end (12) protrude from both ends of the central hole (315). The terminal connector according to claim 1, characterized in that

3. The extension (13) is, in the direction of extension, Connection segment (44), An extended section (15) that curves to form a accommodating gap (151), the accommodating gap (151) having a first opening (152), the first openings (152) of each conductive member (4) facing in the same direction, the extended section (15) including the first segment (41), and a portion of the first side wall (311) provided in the accommodating gap (151) at intervals, the extended section (15) and, It further includes, The connecting segment (44) is located on the side of the extension section (15) where the first opening (152) is provided, and the extension section (15) is electrically connected to the first connection end (11) or the second connection end (12) via the connecting segment (44). The terminal connector according to claim 2, characterized in that

4. The terminal connector according to claim 3, wherein the extension (13) includes a plurality of extension sections (15) arranged at intervals in the extension direction, and in the direction of arrangement of the plurality of extension sections (15), the plurality of accommodation gaps (151) of the same conductive member (4) overlap in at least a portion and correspond to the first side wall (311).

5. The aforementioned extended section (15) is The second segment (42), A third segment (43) is provided on the outside of the magnetic ring (31), wherein the third segment (43) and the first segment (41) extend parallel to each other along the axial direction of the magnetic ring (31) and are connected by the second segment (42), a portion of the first segment (41) having a first opposing connection end (153), and the third segment (43) having a second opposing connection end (154), and the first opposing connection end (153) and the second opposing connection end (154 The third segment (43) is located on the side of the extension section (15) away from the second segment (42), and each of the first opposing connection ends (153) is located on the same side of the conductive member (4), and the plurality of first segments (41) include side segments (411), each of which is located on the same side of the extension section (15), and one end is connected to the first connection end (11) and the other end forms the first opposing connection end (153), It further includes, The extension (13) is configured such that the connecting segment (44) is connected between two adjacent extension sections (15), or between an adjacent side segment (411) and an extension section (15), and both ends of the connecting segment (44) are connected to the first opposing connecting end (153) and the second opposing connecting end (154), respectively. The terminal connector according to claim 3, characterized in that

6. The terminal connector according to claim 5, wherein the conductive member includes two extension sections (15), two connection segments (44), and a side segment (411), the first segment (41) of the extension section (15) away from the side segment (411) is connected to the second connection end (12), the extension section (15) close to the side segment (411) is connected to one end of the side segment (411) by the connection segment (44), and the other end of the side segment (411) is connected to the first connection end (11).

7. The connecting segment (44) includes a first connecting block (441), a second connecting block (442), and a bent portion (443) connected between the first connecting block (441) and the second connecting block (442). The terminal connector according to claim 5, characterized in that the first connection block (441) is connected to the first opposing connection end (153) and is in the same plane as the first opposing connection end (153), the second connection block (442) is connected to the second opposing connection end (154) and is in the same plane as the second opposing connection end (154), and the bent portion (443) is bent from one of the planes toward the other adjacent plane.

8. The housing (2) is an injection-molded part and has an annular housing groove (21) surrounding the intermediate assembly (14), The terminal connector according to claim 5, characterized in that a part of the terminal block (1) is provided in the housing (2) as an insert, and the first opposing connection end (153) and the second opposing connection end (154) protrude from the housing (2).

9. A connection window (155) is formed between the first opposing connection end (153) and the second opposing connection end (154) corresponding to the same connection segment (44). The terminal connector according to claim 8, characterized in that the magnetic ring (31) is provided in the annular housing groove (21) through the connection window (155), and the connection segment (44) is provided in the connection window (155).

10. The terminal connector further includes a cover portion (5), the cover portion (5) includes a cover body (51), and the cover body (51) has an avoidance window (511) provided therein. The terminal connector according to claim 9, characterized in that the cover portion (5) is installed covering the annular housing groove (21) via the connection window (155), and the first opposing connection end (153) and the second connection end (12) protrude from the avoidance window (511).

11. The magnetic ring (31) further includes a second side wall (312) connected to the first side wall (311) in the circumferential direction, The connecting window (155) has a first window edge (1551) provided on the first opposing connecting end (153) and a second window edge (1552) provided on the second opposing connecting end (154), the first window edge (1551) facing the second window edge (1552) and parallel to the axial direction of the magnetic ring (31), and the first window edge (1551) and the second window edge (1552) are each welded to both ends of the connecting segment (44). The terminal connector according to claim 9, characterized in that, in the arrangement direction of the third segment (43) and the first segment (41), the first window edge (1551) and the second window edge (1552) of the connection window (155) that is away from the second side wall (312) are located between the first window edge (1551) and the second window edge (1552) of the connection window (155) that is close to the second side wall (312).

12. The connecting window (155) has a third window edge (1553) provided on the first opposing connecting end (153) and a fourth window edge (1554) provided on the second opposing connecting end (154). The terminal connector according to claim 9, characterized in that the third window edge (1553) and the fourth window edge (1554) extend along the alignment direction of the first segment (41) and the third segment (43), and the opposite sides of the third window edge (1553) and the fourth window edge (1554) form the first opening (152), and the side of the connecting segment (44) is joined to the third window edge (1553) and the fourth window edge (1554) and faces the magnetic ring (31) through the first opening (152).

13. The plurality of conductive members (4) include a first conductive member (4a) and a second conductive member (4b), The magnetic ring (31) further includes a second side wall (312) and a third side wall (313) in the circumferential direction, the third side wall (313) being positioned opposite the first side wall (311) with a gap between them, and the second side wall (312) being connected between the third side wall (313) and the first side wall (311). The terminal connector according to claim 2, characterized in that the extension (13) of the first conductive member (4a) winds around the first side wall (311), the extension (13) of the second conductive member (4b) winds around the second side wall (312), and the extension (13) of the first conductive member (4a) extends in the opposite direction to the extension (13) of the second conductive member (4b) and with the same number of turns.

14. The filter unit (3) is The terminal connector according to claim 13, further comprising an intermediate magnet (32) that is spaced apart between the first conductive member (4a) and the second conductive member (4b) and coupled to the first conductive member (4a), the second conductive member (4b), and the magnetic ring (31).

15. The intermediate magnet (32) has a plate-like structure, and the plate-like structure has a first plate surface (321) and a second plate surface (322). The first plate surface (321) faces the first side wall (311), and a first bonding space (331) is formed between the first plate surface (321) and the first side wall (311). The second plate surface (322) faces the third side wall (313), and a second bonding space (332) is formed between the second plate surface (322) and the third side wall (313). The terminal connector according to claim 14, characterized in that the intermediate assembly (14) of the first conductive member (4a) and the intermediate assembly (14) of the second conductive member (4b) are arranged in the first coupling space (331) and the second coupling space (332), respectively.

16. The housing (2) has a mounting groove (23), the mounting groove (23) includes an annular housing groove (21) and an intermediate groove (22) that communicate with each other, the intermediate groove (22) is located in the center of the annular housing groove (21) and between the two intermediate assemblies (14), The magnetic ring (31) is provided in the annular housing groove (21), the intermediate magnet (32) is provided in the intermediate groove (22), and a partial filling gap (231) is formed between the filter portion (3) and the inner wall of the mounting groove (23). The terminal connector according to claim 15, further comprising a filling adhesive (6) for filling the filling gap (231).

17. A portion of the first segment (41) has a first opposing connection end (153), The terminal connector further includes a cover portion (5), the cover portion (5) includes a cover body (51) and a partition plate (52), and the cover body (51) has an avoidance window (511) provided therein. The terminal connector according to claim 16, characterized in that the cover body (51) is installed covering the annular housing groove (21), the first opposing connection end (153) and the second connection end (12) protrude from the avoidance window (511), the partition plate (52) is simultaneously positioned between the two intermediate assemblies (14) and between the two second connection ends (12), and the edge of the partition plate (52) extends into the intermediate groove (22), and the filling gap (231) is formed between the magnetic ring (31), the mounting groove (23), and the cover body (51).

18. The cross-section of the central hole (315) in the direction of extension is a rounded rectangle, and the first side wall (311) and the third side wall (313) each form the two short sides of the rounded rectangle. The terminal connector according to claim 13, characterized in that two intermediate assemblies (14) are arranged along the long sides of the rounded rectangle, and a plurality of first segments (41) belonging to the same intermediate assembly (14) are arranged along the short sides of the rounded rectangle.

19. Power module (7), Motor controller (8), An electric drive assembly comprising a terminal connector according to any one of claims 1 to 18, wherein the first connection terminal (11) is connected to the power module (7) and the second connection terminal (12) is connected to the motor controller (8).

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