Terminal connector and electric drive assembly

Abstract

The embodiment of the utility model discloses a terminal connector and an electric drive assembly, a plurality of conductive pieces and a filtering part of a terminal strip are arranged in a shell, and a first connecting end and a second connecting end are respectively arranged at two ends of an extension body so as to conduct current. Therefore, the plurality of first sections are arranged on the extension body, and the plurality of first sections are arranged at intervals to form the middle assembly arranged in the magnetic ring. Therefore, the conductive member can pass through the magnetic ring for multiple times by using the intermediate assembly, so that the coupling strength of the terminal strip and the magnetic ring is increased, and the filtering effect of the magnetic ring on common-mode noise is improved. On the other hand, a capacitor is prevented from being arranged on the terminal connector. Therefore, the structure of the terminal connector is simplified, and the size of the terminal connector is smaller.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric automobile technical field especially relates to a terminal connector and electric drive assembly. BACKGROUND

[0002] The connector arranged between the power battery and the motor controller can transmit the electric energy of the power battery to the motor controller, and then drive the motor to rotate by the motor controller. The filter capacitor arranged on the connector can filter the noise caused by external interference or potential difference change between signal lines. However, this also makes the structure of the connector complex and the volume large. How to simplify the structure of the connector while ensuring the filtering function becomes a problem to be solved. SUMMARY

[0003] Therefore, the utility model discloses an embodiment provides a terminal connector and electric drive assembly, a plurality of first section of the electrically conductive part is arranged at intervals to form the middle assembly arranged in the magnetic ring. Thus, avoid setting capacitor on the terminal connector, and make the volume of terminal connector more small and exquisite.

[0004] According to the first aspect of the utility model embodiment, a terminal connector is provided, the terminal connector comprises:

[0005] A shell;

[0006] A filter part arranged in the shell and comprising a magnetic ring; and

[0007] A terminal row arranged in the shell and comprising a plurality of electrically conductive parts arranged at intervals, the electrically conductive part comprising a first connecting end, a second connecting end and an extension body, at least part of the first connecting end and at least part of the second connecting end are exposed outside the shell;

[0008] The extension body extends from the first connecting end to the second connecting end and comprises a plurality of first sections in the extension direction, a plurality of the first sections are arranged at intervals to form a middle assembly, and a plurality of the middle assemblies are arranged along the axial direction of the magnetic ring and coupled with the magnetic ring.

[0009] Further, the magnetic ring comprises a first side wall in the circumferential direction, the inner side surface of the magnetic ring forms a center hole, and the middle assembly is located in the center hole.

[0010] The extension body is bent and extends around the first side wall for multiple turns, and the first connecting end and the second connecting end extend from both ends of the center hole.

[0011] Further, the extension body further comprises in the extension direction:

[0012] A connecting section; and

[0013] The extension interval is bent to form a receiving gap, the receiving gap has a first opening, the first openings of the conductive pieces are oriented in the same direction, the extension interval includes the first segments, and part of the first side walls are arranged in the receiving gap;

[0014] The connection segment is located on one side of the extension interval where the first openings are arranged, and the extension interval is electrically connected to the first connection end or the second connection end through the connection segment.

[0015] Further, the extension body includes a plurality of extension intervals arranged at intervals in the extension direction, and the plurality of receiving gaps of the same conductive piece at least partially overlap and correspond to the first side wall in the arrangement direction of the plurality of extension intervals.

[0016] Further, the extension interval further includes:

[0017] a second segment; and

[0018] a third segment arranged outside the magnetic ring, the third segment extends in parallel with the first segment along the axial direction of the magnetic ring and is connected through the second segment, part of the first segment has a first butt joint, the third segment has a second butt joint, the first butt joint and the second butt joint are located on the side of the extension interval away from the second segment, each first butt joint is located on the same side of the conductive piece, and a plurality of first segments include a side edge segment, the side edge segment is located on the same side of each extension interval and is connected at one end to the first connection end and forms the first butt joint at the other end.

[0019] The extension body is configured such that the connection segment is connected between two adjacent extension intervals or between an adjacent side edge segment and an extension interval, and the two ends of the connection segment are connected to the first butt joint and the second butt joint, respectively.

[0020] Further, the conductive piece includes two extension intervals, two connection segments, and the side edge segment, the first segment of the extension interval away from the side edge segment is connected to the second connection end, the extension interval close to the side edge segment is connected to one end of the side edge segment through the connection segment, and the other end of the side edge segment is connected to the first connection end.

[0021] Further, the connection segment includes a first connection block, a second connection block, and a bending region connected between the first connection block and the second connection block.

[0022] The first connecting block is connected with the first connector and is in the same plane as the first connector, the second connecting block is connected with the second connector and is in the same plane as the second connector, and the bending area is bent from one plane to another adjacent plane.

[0023] Further, the shell is an injection molding part and has a receiving groove, and the receiving groove surrounds the middle assembly.

[0024] Part of the terminal row is arranged as an insert in the shell, and the first connector and the second connector extend from the shell.

[0025] Further, the first connector and the second connector corresponding to the same connecting section form a connecting window therebetween.

[0026] The magnetic ring is arranged in the receiving groove through the connecting window, and the connecting section is arranged in the connecting window.

[0027] Further, the terminal connector further comprises a cover part, the cover part comprises a cover body, and the cover body is provided with an avoiding window.

[0028] The cover part is arranged in the receiving groove through the connecting window, and the first connector and the second connector extend from the avoiding window.

[0029] Further, the magnetic ring further comprises a second side wall connected with the first side wall in the circumferential direction.

[0030] The connecting window has a first window edge arranged at the first connector and a second window edge arranged at the second connector, the first window edge is opposite to 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 respectively welded to two ends of the connecting section.

[0031] In the arrangement direction of the third section and the first section, the first window edge and the second window edge of the connecting window away from the second side wall are located between the first window edge and the second window edge of the connecting window close to the second side wall.

[0032] Further, the connecting window has a third window edge arranged at the first connector and a fourth window edge arranged at the second connector.

[0033] The third window edge and the fourth window edge extend along the arrangement direction of the first section and the third section, and opposite sides of the third window edge and the fourth window edge form the first opening, the side edge of the connecting section is spliced with the third window edge and the fourth window edge and is opposite to the end surface of the magnetic ring through the first opening.

[0034] Further, the plurality of conductive members comprises a first conductive member and a second conductive member.

[0035] The magnetic ring further comprises a second sidewall and a third sidewall in the circumferential direction, the third sidewall is spaced apart from and opposite to the first sidewall, and the second sidewall is connected between the third sidewall and the first sidewall.

[0036] The extension of the first conductive member surrounds the first sidewall, and the extension of the second conductive member surrounds the second sidewall, and the extension of the first conductive member is opposite to the extension of the second conductive member and has the same number of turns.

[0037] Further, the filter part further comprises:

[0038] An intermediate magnetic body is spaced apart between the first conductive member and the second conductive member, and the intermediate magnetic body is coupled with the first conductive member, the second conductive member, and the magnetic ring.

[0039] Further, the intermediate magnetic body is a plate structure, and the plate structure has a first plate surface and a second plate surface.

[0040] The first plate surface faces the first sidewall, and the first plate surface and the first sidewall form a first coupling space therebetween, and the second plate surface faces the third sidewall, and the second plate surface and the third sidewall form a second coupling space therebetween.

[0041] The intermediate assembly of the first conductive member and the intermediate assembly of the second conductive member are located in the first coupling space and the second coupling space, respectively.

[0042] Further, the housing has a mounting groove, and the mounting groove comprises a receiving ring groove and an intermediate groove in communication with each other, the intermediate groove is located at the center of the receiving ring groove and between the two intermediate assemblies.

[0043] The magnetic ring is arranged in the receiving ring groove, the intermediate magnetic body is arranged in the intermediate groove, and a partial filling gap is formed between the filter part and the inner wall of the mounting groove.

[0044] The terminal connector further comprises a filling glue, and the filling glue fills the filling gap.

[0045] Further, part of the first section has a first butt joint.

[0046] The terminal connector further comprises a cover part, and the cover part comprises a cover body and a partition plate, and the cover body is provided with an avoiding window.

[0047] The cover is arranged in the accommodating ring groove, the first connecting end and the second connecting end extend from the avoiding window, the partition plate is located between two intermediate assemblies and two second connecting ends, and the plate edge of the partition plate extends into the intermediate groove, and the magnetic ring (31) and the mounting groove and the cover form the filling gap.

[0048] Further, a section in an extension direction of the center hole is a rounded rectangle, the first side wall and the third side wall form two short sides of the rounded rectangle respectively;

[0049] The two intermediate assemblies are arranged along long sides of the rounded rectangle, and the plurality of first segments of the same intermediate assembly are arranged along short sides of the rounded rectangle.

[0050] In a second aspect, the utility model embodiment further provides an electric drive assembly, the electric drive assembly includes:

[0051] A power module;

[0052] A motor controller; and

[0053] According to the terminal connector in the first aspect, the first connecting end is connected with the power module, and the second connecting end is connected with the motor controller.

[0054] The terminal connector and the electric drive assembly of the utility model embodiment set the plurality of conductive pieces and the filter part of the terminal row in the shell, and set the first connecting end and the second connecting end at two ends of the extension body to conduct current. Therefore, a plurality of first segments are set on the extension body, and the plurality of first segments are arranged at intervals to form the intermediate assembly arranged in the magnetic ring. The conductive piece can pass through the magnetic ring multiple times by using the intermediate assembly, thereby increasing the coupling strength of the terminal row and the magnetic ring and improving the filtering effect of the magnetic ring on common mode noise. On the other hand, the capacitor is avoided to be set on the terminal connector. Therefore, the structure of the terminal connector is simplified, and the volume of the terminal connector is more compact. BRIEF DESCRIPTION OF DRAWINGS

[0055] The above and other objects, features and advantages of the utility model will become more apparent from the following description of the utility model embodiments with reference to the accompanying drawings, in which:

[0056] Figure 1 It is a structure schematic view of one side of the terminal connector of the utility model embodiment;

[0057] Figure 2 It is a structure schematic view of the other side of the terminal connector of the utility model embodiment;

[0058] Figure 3It is the explosion schematic view of one side of the terminal connector of the embodiment of the utility model;

[0059] Figure 4 It is the explosion schematic view of the other side of the terminal connector of the embodiment of the utility model;

[0060] Figure 5 It is Figure 1 The cross section schematic view of A-A in it;

[0061] Figure 6 It is the structure schematic view of one side of the conductive piece of the embodiment of the utility model;

[0062] Figure 7 It is the structure schematic view of the other side of the conductive piece of the embodiment of the utility model;

[0063] Figure 8 It is the explosion schematic view of the terminal row of the embodiment of the utility model;

[0064] Figure 9 It is the structure schematic view of the filter part of the embodiment of the utility model;

[0065] Figure 10 It is the structure schematic view of the extension interval of the embodiment of the utility model;

[0066] Figure 11 It is the structure schematic view of the extension interval and the side edge section of the embodiment of the utility model;

[0067] Figure 12 It is the circuit schematic view of the electric drive assembly of the embodiment of the utility model.

[0068] Explanation of reference signs:

[0069] 1-terminal row;

[0070] 11-first connecting end;12-second connecting end;13-extension body;14-intermediate assembly;15-extension interval;151-accommodation gap;152-first opening;153-first butt joint;154-second butt joint;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;

[0071] 2-housing;

[0072] 21-accommodation ring groove;22-intermediate groove;

[0073] 23-mounting groove;231-filling gap;

[0074] 24-intermediate plate;25-intermediate block;

[0075] 3-filter section;

[0076] 31-magnetic ring; 311-first side wall; 312-second side wall; 313-third side wall; 314-fourth side wall; 315-central hole;

[0077] 32-intermediate magnet; 321-first plate surface; 322-second plate surface;

[0078] 331-first coupling space; 332-second coupling space;

[0079] 4-conductive member;

[0080] 41-first section; 411-side section; 42-second section; 43-third section; 44-connecting section;

[0081] 441-first connecting block; 442-second connecting block; 443-bending area; 44a-first connecting section; 44b-second connecting section;

[0082] 4a-first conductive member; 4b-second conductive member;

[0083] 5-cover section;

[0084] 51-cover body; 511-avoidance window; 512-side plate; 513-flange;

[0085] 52-separation plate;

[0086] 53-baffle plate;

[0087] 6-filling glue;

[0088] 7-power module;

[0089] 8-motor controller. DETAILED DESCRIPTION

[0090] The utility model is described below based on examples, but the utility model is not limited to these examples only. In the following detailed description of the utility model, some specific details are described in detail. The utility model can also be fully understood without the description of these details for those skilled in the art. In order to avoid confusion of the essence of the utility model, well-known methods, processes, flows, elements and circuits are not described in detail.

[0091] In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only and the drawings are not necessarily drawn to scale.

[0092] "comprise," "include," and the like, when used in the entire application, are taken to specify the inclusion of something in an open, non- limiting sense and are not meant to be construed as exclusive or exhaustive.

[0093] In the description of the present application, it is to be understood that the terms "first", "second", and the like, are used to describe various components but do not imply or connote relative importance. In addition, in the description of the present application, the meaning of "a plurality of" is two or more unless otherwise specified or limited.

[0094] Unless otherwise defined, the terms "mounting", "connected", "connecting", "fixed", and the like, are to be construed broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements or interaction relationship of two elements, unless otherwise explicitly defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0095] For ease of description, spatially relative terms such as "inner", "outer", "beneath", "below", "lower", "above", "upper", and the like, can be used herein for describing an element's or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein should be interpreted accordingly.

[0096] Figure 1 and Figure 2 is a structural schematic view of the terminal connector of the present embodiment. Figure 3 and Figure 4 is an exploded schematic view of the terminal connector of the present embodiment.

[0097] In some embodiments, as shown in Figures 1-2 the terminal connector in the present embodiment includes a housing 2 and a terminal row 1, a filter portion 3, and a cover portion 5 provided to the housing 2. Further referring to Figures 3-4As shown, the terminal row 1 comprises a plurality of spaced conductive pieces 4. Each of the conductive pieces 4 is used to form an electrical path. The conductive piece 4 comprises a first connecting end 11, an extension body 13 and a second connecting end 12 in sequence in the extension direction. At least part of the first connecting end 11 and at least part of the second connecting end 12 are exposed outside the housing 2.

[0098] Specifically, the filter part 3 in the embodiment is used to filter the noise on the terminal row 1. The noise includes but is not limited to common mode noise and differential mode noise. Thus, the noise on the terminal row 1 is avoided to interfere with the electrical equipment connected with the second connecting end 12. The common mode noise refers to the same noise appearing on the positive and negative poles of the signal line at the same time. That is, the disturbance in the same direction of the potential of the two signal lines relative to the ground (or a reference point). The differential mode noise refers to the noise appearing between the positive and negative poles of the signal line, that is, the noise caused by the change of the potential difference between the two signal lines.

[0099] Specifically, as shown, Figure 1 the first connecting end 11 extends along a straight line and has a first contact surface. The second connecting end 12 extends along a straight line and has a second contact surface. The first contact surface is exposed outside the housing 2, and the first contact surface and the second contact surface are both flat and face upward of the terminal connector. The current can be conducted from the first connecting end 11 to the second connecting end 12, or from the second connecting end 12 to the first connecting end 11. So that the first connecting end 11 and the second connecting end 12 can be electrically connected with other devices.

[0100] Optionally, the conductive piece 4 in the embodiment can be a conductive material such as copper (for example, T2 copper) or alloy. The housing 2 can be a non-conductive material such as rubber, plastic or plastic. Thus, the creepage distance between the plurality of conductive pieces 4 spaced in the housing 2 is ensured.

[0101] Figure 5 and are Figure 1 the cross-sectional view of A-A in FIG. 1. The filter part 3 in the figure comprises a magnetic ring 31 and an intermediate magnet 32 inside the magnetic ring 31. The housing 2 is buckled with the cover part 5, so as to fix the filter part 3 inside the terminal connector. The material of the magnetic ring 31 can be nanocrystalline material. The magnetic ring 31 can filter the common mode noise.

[0102] Figure 6 and Figure 7 are the structural schematic diagram of the conductive piece 4 of FIG. 1, Figure 6 the conductive piece 4 in FIG. 1 is a first conductive piece 4a, Figure 7 the conductive piece 4 in FIG. 2 is a second conductive piece 4b. The arrows of the conductive pieces 4 in the two figures show a specific current flow direction, that is, according to the different connection modes of the terminal connector, the flow direction of the current will also change. In addition, the winding directions of the first conductive piece 4a and the second conductive piece 4b are opposite.

[0103] Figure 8 is an exploded schematic view of the terminal array 1 of the present embodiment.

[0104] In some embodiments, as shown in Figures 5-8 , the extension body 13 extends from the first connecting end 11 to the second connecting end 12 and comprises a plurality of first segments 41 in the extension direction. The plurality of first segments 41 are arranged in an intermediate assembly 14 which is disposed in the magnetic ring 31 and coupled to the magnetic ring 31 along the axial direction of the magnetic ring 31. The extension body 13 can be configured as a strip structure, and the plurality of first segments 41 are arranged in the extension direction of the strip structure and distributed in the thickness direction of the strip structure.

[0105] The number of first segments 41 in the present embodiment can be two, three or more. When the number of first segments 41 is multiple, the coupling strength between the conductive member 4 and the magnetic ring 31 can be increased compared to when only one first segment 41 is provided, and the filtering effect of the filter part 3 on the specific frequency band noise on the terminal array 1 can be improved. The magnetic ring 31 can filter the common mode noise on the terminal array 1 and reduce the interference of the common mode noise on the electrical equipment connected to the second connecting end 12.

[0106] In summary, in the terminal connector of the present embodiment, the plurality of conductive members 4 and the filter part 3 of the terminal array 1 are disposed in the housing 2, and the first connecting end 11 and the second connecting end 12 are respectively disposed at the two ends of the extension body 13 to conduct current. Thus, the plurality of first segments 41 are disposed on the extension body 13, and the plurality of first segments 41 are arranged in the intermediate assembly 14 disposed in the magnetic ring 31. The conductive member 4 can pass through the magnetic ring 31 multiple times by using the intermediate assembly 14, thereby increasing the coupling strength between the terminal array 1 and the magnetic ring 31 and improving the filtering effect of the magnetic ring 31 on the common mode noise of the specific frequency band. On the other hand, the capacitor is avoided to be disposed on the terminal connector. Thus, the structure of the terminal connector is simplified, and the volume of the terminal connector is more compact.

[0107] Figure 9 is a structural schematic view of the filter part 3 of the present embodiment.

[0108] In some embodiments, as shown in Figure 6 and Figure 9 , the magnetic ring 31 comprises a first side wall 311 in the circumferential direction. The inner side of the magnetic ring 31 forms a central hole 315, and the intermediate assembly 14 is located in the central hole 315. The extension body 13 is bent and extends around the first side wall 311 for multiple turns, and the first connecting end 11 and the second connecting end 12 extend from the two ends of the central hole 315.

[0109] Thus, the conductive member 4 in the embodiment is arranged around the first side wall 311, which can increase the coupling strength between the conductive member 4 and the magnetic ring 31, so that the current can pass through the central hole 315 along the extension body 13 for multiple times, further improving the filtering effect of the magnetic ring 31. In addition, the occupied volume of the terminal row 1 can be reduced.

[0110] Optionally, the extension body 13 can surround the first side wall 311 for two, three or more turns. Figure 6 For example, the extension body 13 in the figure surrounds the first side wall 311 for two turns and then surrounds it for half a turn, so that the first connecting end 11 and the second connecting end 12 are respectively located on the two sides of the magnetic ring 31, facilitating the installation operation of the terminal connector.

[0111] In some embodiments, as shown in Figure 6 and Figure 8 , the extension body 13 further includes a connecting section 44 and an extension interval 15 in the extension direction. The extension interval 15 is bent to form a receiving gap 151.

[0112] Further referring to Figure 4 , the receiving gap 151 has a first opening 152, the first openings 152 of the conductive members 4 have the same orientation, the extension interval 15 includes the first section 41 mentioned above, part of the first side wall 311 is arranged in the receiving gap 151, and the first side wall 311 is not in contact with the receiving gap 151. The connecting section 44 is located on the side of the extension interval 15 where the first opening 152 is arranged, and the extension interval 15 is electrically connected to the first connecting end 11 or the second connecting end 12 through the connecting section 44.

[0113] In the assembly process of the terminal connector, the magnetic ring 31 can be arranged in the receiving gap 151 through the first opening 152 in this form. In this form, each region of the extension body 13 is in a discontinuous state. Then, the connecting section 44 is arranged at the position of the first opening 152, so that each region of the extension body 13 is electrically overlapped together through the connecting section 44, thereby forming an electrical path. Thus, the installation mode of the terminal row 1 is simplified, the conductive member 4 can be wound around the first side wall 311 in a substantially spiral form, the coupling strength between the conductive member 4 and the magnetic ring 31 is improved, and the structure of the terminal row 1 is more compact.

[0114] Figure 10 is a structural schematic view of the extension interval 15 of the embodiment. The outline of the extension interval 15 in the lower layer is shown by a thick solid line, and only one extension interval 15 is shown on the left side.

[0115] In some embodiments, as shown in Figure 8 , the extension body 13 includes a plurality of extension intervals 15 arranged at intervals in the extension direction. Further referring to Figure 10As shown, in the arrangement direction of the plurality of extension sections 15, the plurality of accommodation gaps 151 of the same conductive member 4 at least partially overlap and correspond to the first side wall 311. In this way, the magnetic ring 31 can be sleeved outside the middle assembly 14 through the accommodation gap 151, avoiding the first side wall 311 interfering with the extension section 15.

[0116] Preferably, the plurality of extension sections 15 respectively extend in different planes, the edges of the plurality of accommodation gaps 151 completely overlap, so that the distance from the first side wall 311 to each accommodation gap 151 remains the same, thereby ensuring that the extension body 13 can be stably coupled with the magnetic ring 31 each time it passes through the center hole 315.

[0117] In some embodiments, as shown in Figure 6 and Figure 8 As shown, the extension section 15 further includes a second section 42 and a third section 43. The third section 43 is arranged outside the magnetic ring 31, the third section 43 extends in parallel with the first section 41 along the axial direction of the magnetic ring 31 and is connected through the second section 42, part of the first section 41 has a first butt joint 153, the third section 43 has a second butt joint 154, and the first butt joint 153 and the second butt joint 154 are located on the side of the extension section 15 away from the second section 42. Each first butt joint 153 is located on the same side of the conductive member 4, and the plurality of first sections 41 includes a side edge section 411. The side edge section 411 is located on the same side of each extension section 15, and one end of the side edge section 411 is connected to the first connecting end 11 and the other end forms the first butt joint 153. The connecting section 44 is connected between adjacent two extension sections 15 or between adjacent side edge sections 411 and extension sections 15, and the two ends of the connecting section 44 are respectively connected to the first butt joint 153 and the second butt joint 154.

[0118] Specifically, one first section 41 is arranged as a side edge section 411 at the top of the terminal row 1, and the current fed into the terminal row 1 can first pass through the magnetic ring 31 through the side edge section 411 to filter out common mode noise. The extension section 15 can be configured in a U-shaped structure, and the notch of the U-shaped structure faces the same side of the housing 2. The metal plate can be cut by laser cutting to form the extension section 15, or the extension section 15 can be made by stamping process, so as to reduce the processing cost of the terminal row 1.

[0119] In some embodiments, as shown in Figure 8 The connecting section 44 includes a first connecting block 441, a second connecting block 442, and a bending region 443 connected between the first connecting block 441 and the second connecting block 442. Further referring to Figure 6As shown, the first connecting block 441 is connected with the first contact head 153 and in the same plane with the first contact head 153. The second connecting block 442 is connected with the second contact head 154 and in the same plane with the second contact head 154, and the bending area 443 is bent from one plane to another adjacent plane.

[0120] The first connecting block 441 and the second connecting block 442 in the embodiment are respectively in the same plane with the first contact head 153 and the second contact head 154, so that the operator can easily weld (for example, laser welding) the first contact head 153 and the second contact head 154 with the first connecting block 441 and the second connecting block 442, thereby reducing the welding difficulty and ensuring the mechanical strength of the conductive part 4 after welding.

[0121] In some embodiments, as shown in Figure 2 and Figure 4 As shown, the shell 2 is an injection molding part and has a ring accommodating groove 21 which surrounds the middle assembly 14. The terminal row 1 is arranged as an insert in the shell 2, and the first contact head 153 and the second contact head 154 extend out of the shell 2.

[0122] Specifically, the shell 2 and part of the conductive part 4 in the embodiment can be made by an insert molding process, so as to fix the middle assembly 14 on the inner side of the shell 2 and expose the first contact head 153 and the second contact head 154 on the outer side of the shell 2 to form an injection molding assembly. In this way, the operator can first arrange the magnetic ring 31 in the ring accommodating groove 21, and then connect the connecting section 44 between the first contact head 153 and the second contact head 154. Thus, the extension body 13 can surround the side wall of the magnetic ring 31.

[0123] In some embodiments, as shown in Figure 4 The first contact head 153 and the second contact head 154 corresponding to the same connecting section 44 form a connecting window 155 therebetween. In Figure 4 The approximate outline of the lower connecting window 155 is shown by a dashed line. The magnetic ring 31 is arranged in the ring accommodating groove 21 through the connecting window 155, and further reference is made to Figure 8 As shown, the connecting section 44 is arranged in the connecting window 155.

[0124] The connecting section 44 in the embodiment is fixedly connected with the extension interval 15 through the connecting window 155. Before the connecting section 44 is connected with the extension interval 15, the ring accommodating groove 21 is in an open state through the connecting window 155 to one side of the terminal connector, so that the magnetic ring 31 can pass through the connecting window 155 into the ring accommodating groove 21.

[0125] In some embodiments, as shown in Figure 3 As shown, the terminal connector further includes a cover 5. Further reference is made toFigure 4 As shown, the cover part 5 comprises a cover body 51, the cover body 51 is provided with an avoiding window 511. The cover part 5 is arranged in the accommodating ring groove 21 through the connecting window 155, and the first connecting end 153 and the second connecting end 12 extend from the avoiding window 511.

[0126] Specifically, the cover body 51 comprises a side plate 512, the side plate 512 extends around to form the avoiding window 511. When the cover body 51 covers the accommodating ring groove 21, the side plate 512 can protect the magnetic ring 31. In this form, part of the side plate 512 can just pass through the connecting window 155. Thus, the cover part 5 is matched with the structure of the injection molding assembly.

[0127] In some embodiments, as shown in Figure 9 As shown, the magnetic ring 31 further comprises a second side wall 312 connected with the first side wall 311 in the circumferential direction. Further referring to Figure 4 As shown, the connecting window 155 has a first window edge 1551 arranged at the first connecting end 153 and a second window edge 1552 arranged at the second connecting end 154, the first window edge 1551 and the second window edge 1552 are opposite to each other and parallel to the axial direction of the magnetic ring 31, and the first window edge 1551 and the second window edge 1552 are respectively welded with two ends of the connecting section 44. In the arrangement direction of the third section 43 and the first section 41, the first window edge 1551 and the second window edge 1552 of the connecting window 155 away from the second side wall 312 are located between the first window edge 1551 and the second window edge 1552 of the connecting window 155 close to the second side wall 312.

[0128] Figure 11 is a structural schematic view of the extension interval 15 and the side edge section 411 of the present embodiment. The outline of the side edge section 411 on the upper side is shown by a dashed line, and the outline of the extension interval 15 on the lower side is shown by a thick solid line.

[0129] Specifically, as shown in Figure 11 As shown, in the arrangement direction of the two extension intervals 15, the distance between the first window edge 1551 and the second window edge 1552 of the lower connecting window 155 is distance L1, and the distance between the first window edge 1551 and the second window edge 1552 of the upper connecting window 155 is distance L2. The distance L1 is less than the distance L2. That is, the first window edge 1551 and the second window edge 1552 of the lower side are inside the connecting window 155 on the upper side.

[0130] Specifically, the connecting segment 44 includes a first connecting segment 44a and a second connecting segment 44b, the first connecting segment 44a extends in parallel with the second connecting segment 44b, and the length of the first connecting segment 44a is less than that of the second connecting segment 44b. When the operator sets the first connecting segment 44a in the lower connecting window 155, the welding position of the first connecting segment 44a and the first window rim 1551 and the second window rim 1552 passes through the upper connecting window 155, and is directed to the upper side of the injection molding assembly. Thus, the operator can weld the second connecting segment 44b by using the light beam or the welding head of the laser welding, and the upper connecting window 155 can serve as a shelter for the light beam or the welding head. After the welding of the second connecting segment 44b is completed, the first connecting segment 44a can be welded again.

[0131] Specifically, the conductive member 4 includes two extension intervals 15, the first connecting segment 44a and the second connecting segment 44b, and a side segment 411. The first segment 41 of the extension interval 15 away from the side segment 411 is connected with the second connecting end 12, and the extension interval 15 close to the side segment 411 is connected with the side segment 411 through the second connecting segment 44b, and the side segment 411 is connected with the first connecting end 11.

[0132] In some embodiments, as shown in Figure 4 The connecting window 155 has a third window rim 1553 arranged at the first butt joint 153 and a fourth window rim 1554 arranged at the second butt joint 154. The third window rim 1553 and the fourth window rim 1554 extend along the arrangement direction of the first segment 41 and the third segment 43, and the opposite sides of the third window rim 1553 and the fourth window rim 1554 form the first opening 152. Further referring to Figure 6 The side of the connecting segment 44 is spliced with the third window rim 1553 and the fourth window rim 1554, and is opposite to the end surface of the magnetic ring 31 through the first opening 152.

[0133] The third window rim 1553 and the fourth window rim 1554 in the present embodiment can serve as a limiting position for the connecting segment 44, and ensure the position accuracy between the connecting segment 44 and the extension interval 15 after welding. Meanwhile, the third window rim 1553 and the fourth window rim 1554 can also increase the contact area between the connecting segment 44 and the extension interval 15, which is helpful to improve the conduction effect of the current.

[0134] Specifically, as shown in Figure 10 The side of the connecting window 155 away from the first opening 152 is provided with a second opening 1555, and the accommodation gap 151 is open to one side of the extension interval 15 through the second opening 1555. The magnetic ring 31 can enter the accommodation gap 151 through the second opening 1555 and the first opening 152 in sequence.

[0135] In some embodiments, as shown in Figures 6-7As shown, the plurality of conductive members 4 includes a first conductive member 4a and a second conductive member 4b. Further referring to Figure 9 As shown, the magnetic ring 31 further includes a third side wall 313 in the circumferential direction, which is spaced apart from and opposite to the first side wall 311. The extension body 13 of the first conductive member 4a surrounds the first side wall 311, and the extension body 13 of the second conductive member 4b surrounds the second side wall 312. The extension direction of the extension body 13 of the first conductive member 4a is opposite to that of the extension body 13 of the second conductive member 4b, and the number of turns is the same.

[0136] The first conductive member 4a and the second conductive member 4b in the embodiment can be used as positive transmission lines and negative transmission lines respectively, thereby providing direct current power supply for electrical equipment. At the same time, the winding directions of the two extension bodies 13 are opposite and the number of turns is the same. This can make the inductance values of the positive transmission lines and the negative transmission lines consistent, which is helpful for stable conduction of current. Moreover, different regions of the magnetic ring 31 are fully utilized.

[0137] In some embodiments, as shown in Figure 3 As shown, the filter part 3 further includes an intermediate magnet 32. The intermediate magnet 32 is spaced apart from the first conductive member 4a and the second conductive member 4b, and is coupled with the first conductive member 4a, the second conductive member 4b and the magnetic ring 31. The intermediate magnet 32 in the embodiment can cooperate with the magnetic ring 31 to filter differential mode noise on the terminal row 1. In this way, the capacitor is avoided to be installed on the terminal connector, and the structure of the terminal connector is further simplified.

[0138] In some embodiments, as shown in Figure 3 and Figure 9 As shown, the intermediate magnet 32 is in a plate structure, which has a first plate surface 321 and a second plate surface 322. The first plate surface 321 faces the first side wall 311, and the first plate surface 321 and the first side wall 311 form a first coupling space 331. The second plate surface 322 faces the third side wall 313, and the second plate surface 322 and the third side wall 313 form a second coupling space 332. The intermediate assembly 14 of the first conductive member 4a and the intermediate assembly 14 of the second conductive member 4b are respectively located in the first coupling space 331 and the second coupling space 332.

[0139] The intermediate magnet 32 in the embodiment and the first side wall 311 can be equivalent to two plates of a first capacitor, and the intermediate magnet 32 and the third side wall 313 can be equivalent to two plates of a second capacitor. The magnetic force lines of the first capacitor pass through the two intermediate assemblies 14 respectively in cooperation with the second capacitor, thereby filtering differential mode noise of the two intermediate assemblies 14.

[0140] Optionally, the outer side of the magnetic ring 31 in the embodiment is provided with epoxy resin, so that the outer side of the magnetic ring 31 is more regular in shape. The intermediate magnet 32 can be made of ferrite material.

[0141] In some embodiments, as shown in FIG4 , the housing 2 has a mounting groove 23, the mounting groove 23 includes an accommodating ring groove 21 and an intermediate groove 22 that are interconnected, and the intermediate groove 22 is located at the center of the accommodating ring groove 21 and between the two intermediate components 14. Figure 5 As shown, the magnetic ring 31 is disposed in the receiving ring groove 21, the intermediate magnet 32 ​​is disposed in the intermediate groove 22, and a partially filled gap 231 is formed between the filter unit 3 and the inner wall of the mounting groove 23. The terminal connector also includes a filler 6 that fills the gap 231. The filler 6 in this embodiment simplifies the fixing method of the filter unit 3 to the housing 2.

[0142] Specifically, the filler 6 in this embodiment can be a silicone rubber-based adhesive, such as two-component silicone rubber, RTV silicone rubber adhesive, or heat-vulcanized silicone rubber adhesive (HTV). Once cured, the filler 6 secures the filter unit 3 within the housing 2. Furthermore, the filter unit 3 provides impact resistance and thermal conductivity.

[0143] In some embodiments, as Figure 8 As shown, the first section 41 has a first pair of joints 153. Figure 4 and Figure 5 As shown, the terminal connector further includes a cover 5, which includes a cover body 51 and a partition 52. The cover body 51 is provided with an escape window 511. The cover body 51 is covered on the accommodating ring groove 21, and the first pair of joints 153 and the second connection end 12 extend from the escape window 511. Figure 1 As shown, the partition 52 is located between the two intermediate components 14 and the two second connection ends 12, and the edge of the partition 52 extends into the intermediate groove 22, forming a filling gap 231 between the magnetic ring 31, the mounting groove 23, and the cover 51. As a result, the filling glue 6 can fix the cover 5 and the housing 2 together.

[0144] Specifically, if Figure 3 As shown, the partition 52 in this embodiment is used to separate the first connection end 11 and the second connection end 12 to prevent the two conductive parts 4 exposed on the outside of the shell 2 from contacting each other and causing a short circuit. At the same time, it can also provide sufficient creepage distance between the first conductive part 4a and the second conductive part 4b. The shell 2 also includes two intermediate blocks 25 and two intermediate plates 24. The outer side surfaces of the two intermediate blocks 25 are used to form the inner wall of the accommodating ring groove 21. The two intermediate blocks 25 are arranged on opposite sides of the two intermediate blocks 25. The opposite sides of the two intermediate blocks 25 form the intermediate groove 22. The two intermediate blocks 25 extend to the outside of the accommodating ring groove 21. The edges of the two intermediate blocks 25 pass through the avoidance window 511 and extend to both sides of the edge of the partition 52, thereby limiting the cover 5.

[0145] Preferably, the cover body 51 further comprises a flange 513, which is arranged at the edge of the cover body 51 and is bent towards the shell 2. When the cover 5 is fixed to the shell 2, the top of the accommodating ring groove 21 can be inserted into the flange 513, thereby protecting the filter part 3 and reducing the flow of the filling glue 6 to the outside.

[0146] In some embodiments, as shown in FIG. 5, the cover 5 further comprises a baffle 53, which is arranged on the side of the cover body 51 away from the accommodating ring groove 21 and is located on the side of the first connecting end 11 and the second connecting end 12 away from the first contact surface and the second contact surface. The baffle 53 is connected with the partition plate 52 to reinforce the partition plate 52. When the electrical equipment is connected with the first contact surface and the second contact surface, the baffle 53 can limit the bending range of the first connecting end 11 and the second connecting end 12 to avoid excessive bending. The cover 5 can be an injection molding part, for example, made of polyurethane, to ensure that the cover 5 has sufficient strength. Figure 2 Figure 4 In some embodiments, as shown in FIG. 5, the cover 5 further comprises a baffle 53, which is arranged on the side of the cover body 51 away from the accommodating ring groove 21 and is located on the side of the first connecting end 11 and the second connecting end 12 away from the first contact surface and the second contact surface. The baffle 53 is connected with the partition plate 52 to reinforce the partition plate 52. When the electrical equipment is connected with the first contact surface and the second contact surface, the baffle 53 can limit the bending range of the first connecting end 11 and the second connecting end 12 to avoid excessive bending. The cover 5 can be an injection molding part, for example, made of polyurethane, to ensure that the cover 5 has sufficient strength.

[0147] In some embodiments, as shown in FIG. 5, the cover 5 further comprises a baffle 53, which is arranged on the side of the cover body 51 away from the accommodating ring groove 21 and is located on the side of the first connecting end 11 and the second connecting end 12 away from the first contact surface and the second contact surface. The baffle 53 is connected with the partition plate 52 to reinforce the partition plate 52. When the electrical equipment is connected with the first contact surface and the second contact surface, the baffle 53 can limit the bending range of the first connecting end 11 and the second connecting end 12 to avoid excessive bending. The cover 5 can be an injection molding part, for example, made of polyurethane, to ensure that the cover 5 has sufficient strength. Figure 9 In some embodiments, as shown in FIG. 5, the cover 5 further comprises a baffle 53, which is arranged on the side of the cover body 51 away from the accommodating ring groove 21 and is located on the side of the first connecting end 11 and the second connecting end 12 away from the first contact surface and the second contact surface. The baffle 53 is connected with the partition plate 52 to reinforce the partition plate 52. When the electrical equipment is connected with the first contact surface and the second contact surface, the baffle 53 can limit the bending range of the first connecting end 11 and the second connecting end 12 to avoid excessive bending. The cover 5 can be an injection molding part, for example, made of polyurethane, to ensure that the cover 5 has sufficient strength.

[0148] It is easy to understand that the coupling strength between the conductive part 4 and the filter part 3 is positively correlated with the inductance value of the conductive part 4. The inductance value of the conductive part 4 can be estimated according to the formula L = N 2 × AL. Wherein, N is the number of turns of the conductive part 4 on the magnetic ring 31, and AL is the inductance value of one turn of the conductive part 4. As can be seen, when the conductive part 4 comprises three first segments 41, that is, the conductive part 4 passes through the magnetic ring 31 three times, the inductance value of the conductive part 4 is about 9 times higher than that of a single turn.

[0149] Table 1

[0150]

[0151]

[0152] ​​

[0153] Table 1 is a comparison of the inductance and impedance of the terminal connector when wound one turn (one first segment 41) and three turns (three first segments 41) at 10 kHz, 100 kHz, and 30 MHz. The unit of inductance is micro-henry (uH). The unit of impedance is ohm (Ω). For example, at 10 kHz, the inductance of three turns is approximately 9 times the inductance of one turn. Thus, the filter portion 3 can effectively filter the noise of the conductive member 4.

[0154] Table 2

[0155] Frequency Single turn (dB) Three turns (dB) 10 kHz 0.01 -0.36 100 kHz -1.09 -9.64 1 MHz -5.36 -19.35 10 MHz -9.05 -25.93 30 MHz -2.74 -19.55 50 MHz -1.15 -13.43 100 MHz 0.5 -6.29

[0156] Table 2 is a comparison of the insertion loss of the terminal connector when wound one turn (one first segment 41) and three turns (three first segments 41) at different frequencies. For example, at 10 kHz, the insertion loss of three turns is less than the insertion loss of one turn. Thus, the filter portion 3 can effectively couple with the terminal row 1 and filter the noise of the conductive member 4.

[0157] The terminal connector in the above embodiments can be installed in the following manner. In some implementations, first, the extension interval 15 is manufactured using a laser cutting process or a stamping process. As shown in FIG. 6, the first nut 16 is fixed with the first connecting end 11, and the through hole of the first nut 16 corresponds to the through hole of the first connecting end 11. Second, the extension interval 15 and the first nut 16 are injection molded with the housing 2 using an insert molding process. Third, the filling glue 6 is applied in the installation groove 23, and the magnetic ring 31 and the intermediate magnet 32 are respectively arranged in the accommodating ring groove 21 and the intermediate groove 22. The outer side end face of the magnetic ring 31 is coated with the filling glue 6. Fourth, the cover portion 5 is covered on the accommodating ring groove 21. Fifth, the first connecting segment 44a and the second connecting segment 44b are sequentially welded on the corresponding connecting window 155. Finally, the second nut 17 is fixed on the second connecting end 12, and the through hole of the second nut 17 corresponds to the through hole of the second connecting end 12. Figure 3

[0158] Figure 12 FIG. 7 is a circuit schematic diagram of an electric drive assembly of the present embodiments.

[0159] In an alternative implementation, as shown in FIG. 8, the terminal connector in the above embodiments can be applied to an electric drive assembly. The electric drive assembly further includes a power module 7 and a motor controller 8. Figure 12

[0160] ​​Specifically, the power module 7 includes a power battery. The motor control unit 8 is used for controlling 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 control unit 8 as the positive and negative transmission lines of the power module 7 and the motor control unit 8, respectively.

[0161] In summary, in the electric drive assembly in the embodiment, the plurality of conductive members 4 of the terminal row 1 of the terminal connector and the filter part 3 are arranged in the shell 2, the first connecting end 11 and the second connecting end 12 are arranged at the two ends of the extension body 13, and the current is conducted. Therefore, the plurality of first sections 41 are arranged on the extension body 13, and the plurality of first sections 41 are arranged at intervals to form the intermediate assembly 14 arranged in the magnetic ring 31. The conductive member 4 can pass through the magnetic ring 31 multiple times by using the intermediate assembly 14, and the coupling strength of the terminal row 1 and the magnetic ring 31 is increased, and the filtering effect of the magnetic ring 31 on the common-mode noise is improved. On the other hand, the capacitor is avoided to be arranged on the terminal connector. Therefore, the structure of the terminal connector is simplified, and the volume of the terminal connector is more compact.

[0162] In an optional implementation, the electric drive assembly in the above embodiment can be applied to a vehicle. The vehicle can be a pure electric vehicle or a hybrid electric vehicle.

[0163] In summary, in the vehicle in the embodiment, the plurality of conductive members 4 of the terminal row 1 of the terminal connector and the filter part 3 are arranged in the shell 2, the first connecting end 11 and the second connecting end 12 are arranged at the two ends of the extension body 13, and the current is conducted. Therefore, the plurality of first sections 41 are arranged on the extension body 13, and the plurality of first sections 41 are arranged at intervals to form the intermediate assembly 14 arranged in the magnetic ring 31. The conductive member 4 can pass through the magnetic ring 31 multiple times by using the intermediate assembly 14, and the coupling strength of the terminal row 1 and the magnetic ring 31 is increased, and the filtering effect of the magnetic ring 31 on the common-mode noise is improved. On the other hand, the capacitor is avoided to be arranged on the terminal connector. Therefore, the structure of the terminal connector is simplified, and the volume of the terminal connector is more compact.

[0164] The preferred embodiments of the utility model are described above, and the utility model is not limited to the above. For those skilled in the art, the utility model can be changed and varied in various ways. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A terminal connector characterized by comprising: The terminal connector comprises: a housing (2); a filter (3) disposed in the housing (2) and comprising a magnetic ring (31); and a terminal row (1) disposed in the housing (2) and comprising a plurality of conductive pieces (4) arranged at intervals, the conductive pieces (4) comprising a first connecting end (11), a second connecting end (12), and an extension body (13), at least part of the first connecting end (11) and at least part of the second connecting end (12) being exposed outside the housing (2); the extension body (13) extending from the first connecting end (11) to the second connecting end (12) and comprising a plurality of first segments (41) in the extension direction, the plurality of first segments (41) being arranged at intervals to form intermediate components (14), and the plurality of intermediate components (14) being disposed in the magnetic ring (31) along the axial direction of the magnetic ring (31) and coupled with the magnetic ring (31).

2. The terminal connector according to claim 1, characterized by The magnetic ring (31) comprises a first side wall (311) in the circumferential direction, an inner side surface of the magnetic ring (31) forms a central hole (315), and the intermediate components (14) are located in the central hole (315). The extension body (13) is bent and extends around the first side wall (311) for multiple turns, and the first connecting end (11) and the second connecting end (12) protrude from both ends of the central hole (315).

3. The terminal connector according to claim 2, characterized by The extension body (13) further comprises, in the extension direction: a connecting segment (44); and an extension interval (15) bent to form a receiving gap (151), the receiving gap (151) having a first opening (152), the first openings (152) of the conductive pieces (4) being oriented in the same direction, the extension interval (15) comprising the first segments (41), and part of the first side wall (311) being arranged in the receiving gap (151) at intervals; the connecting segment (44) is located on one side of the extension interval (15) where the first opening (152) is arranged, and the extension interval (15) is electrically connected to the first connecting end (11) or the second connecting end (12) through the connecting segment (44).

4. The terminal connector according to claim 3, characterized by The extension body (13) comprises a plurality of extension intervals (15) arranged at intervals in the extension direction, and in the arrangement direction of the plurality of extension intervals (15), a plurality of receiving gaps (151) of the same conductive piece (4) at least partially overlap and correspond to the first side wall (311).

5. The terminal connector according to claim 3, characterized by The extension interval (15) further comprises: a second segment (42); and A third section (43) is arranged outside the magnetic ring (31), the third section (43) extends along the axial direction of the magnetic ring (31) in parallel with the first section (41) and is connected by the second section (42), part of the first section (41) has a first pair of joints (153), the third section (43) has a second pair of joints (154), the first pair of joints (153) and the second pair of joints (154) are located on the side of the extension interval (15) away from the second section (42), each of the first pair of joints (153) is located on the same side of the conductive part (4), a plurality of the first section (41) includes a side section (411), the side section (411) is located on the same side of each of the extension interval (15), and one end is connected to the first connection end (11), and the other end forms the first pair of joints (153); The extension body (13) is configured such that the connection section (44) is connected between two adjacent extension intervals (15) or between the adjacent side section (411) and the extension interval (15), and the two ends of the connection section (44) are connected to the first pair of joints (153) and the second pair of joints (154), respectively.

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

7. The terminal connector according to claim 5, wherein The connection section (44) includes a first connection block (441), a second connection block (442) and a bending area (443) connected between the first connection block (441) and the second connection block (442); The first connection block (441) is connected to the first pair of joints (153) and is in the same plane as the first pair of joints (153), the second connection block (442) is connected to the second pair of joints (154) and is in the same plane as the second pair of joints (154), and the bending area (443) is bent from one plane to an adjacent plane.

8. The terminal connector according to claim 5, characterized by The shell (2) is an injection molded part and has a receiving ring groove (21) surrounding the middle assembly (14); Part of the terminal row (1) is arranged in the shell (2) as an insert, and the first pair of joints (153) and the second pair of joints (154) extend from the shell (2).

9. The terminal connector according to claim 8, characterized by The first pair of joints (153) and the second pair of joints (154) corresponding to the same connection section (44) form a connection window (155); The magnetic ring (31) is arranged in the receiving ring groove (21) through the connection window (155), and the connection section (44) is arranged in the connection window (155).

10. The terminal connector according to claim 9, characterized by The terminal connector further comprises a cover part (5), the cover part (5) comprises a cover body (51), the cover body (51) is provided with an avoiding window (511); The cover part (5) is arranged on the accommodating ring groove (21) through the connecting window (155), and the first connecting head (153) and the second connecting end (12) extend from the avoiding window (511).

11. The terminal connector of claim 9, wherein The magnetic ring (31) further comprises a second side wall (312) connected with the first side wall (311) in the circumferential direction; The connecting window (155) is provided with a first window edge (1551) arranged at the first connecting head (153) and a second window edge (1552) arranged at the second connecting head (154), the first window edge (1551) is opposite to 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 respectively welded with two ends of the connecting section (44); In the arrangement direction of the third section (43) and the first section (41), the first window edge (1551) and the second window edge (1552) of the connecting window (155) away from the second side wall (312) are located between the first window edge (1551) and the second window edge (1552) close to the second side wall (312).

12. The terminal connector of claim 9, wherein The connecting window (155) is provided with a third window edge (1553) arranged at the first connecting head (153) and a fourth window edge (1554) arranged at the second connecting head (154); The third window edge (1553) and the fourth window edge (1554) extend along the arrangement direction of the first section (41) and the third section (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 edge of the connecting section (44) is spliced with the third window edge (1553) and the fourth window edge (1554) and is opposite to the end surface of the magnetic ring (31) through the first opening (152).

13. The terminal connector of claim 2, wherein A plurality of the conductive members (4) comprise a first conductive member (4a) and a second conductive member (4b); The magnetic ring (31) further comprises a second side wall (312) and a third side wall (313) in the circumferential direction, the third side wall (313) is spaced apart from and opposite to the first side wall (311), and the second side wall (312) is connected between the third side wall (313) and the first side wall (311); The extension body (13) of the first conductive member (4a) surrounds the first side wall (311), the extension body (13) of the second conductive member (4b) surrounds the second side wall (312), the extension direction of the extension body (13) of the first conductive member (4a) is opposite to that of the extension body (13) of the second conductive member (4b), and the number of turns is the same.

14. The terminal connector of claim 13, wherein The filter part (3) further comprises: An intermediate magnetic body (32) is arranged between the first conductive member (4a) and the second conductive member (4b) and coupled with the first conductive member (4a), the second conductive member (4b) and the magnetic ring (31).

15. The terminal connector of claim 14, wherein The intermediate magnetic body (32) is a plate structure having a first plate surface (321) and a second plate surface (322); The first plate surface (321) faces the first side wall (311) and forms a first coupling space (331) with the first side wall (311), and the second plate surface (322) faces the third side wall (313) and forms a second coupling space (332) with 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 respectively located in the first coupling space (331) and the second coupling space (332).

16. The terminal connector of claim 15, wherein The housing (2) has a mounting groove (23) including a receiving ring groove (21) and an intermediate groove (22) in communication with each other, the intermediate groove (22) is located at the center of the receiving ring groove (21) and between the two intermediate assemblies (14); The magnetic ring (31) is arranged in the receiving ring groove (21), the intermediate magnetic body (32) is arranged in the intermediate groove (22), and a partial filling gap (231) is formed between the filter part (3) and the inner wall of the mounting groove (23); The terminal connector further comprises a filling glue (6) for filling the filling gap (231).

17. The terminal connector of claim 16, wherein Part of the first section (41) has a first butt joint (153); The terminal connector further comprises a cover part (5) including a cover body (51) and a partition plate (52), the cover body (51) is provided with an avoiding window (511); The cover body (51) is arranged on the receiving ring groove (21), the first butt joint (153) and the second connecting end (12) extend from the avoiding window (511), the partition plate (52) is located between the two intermediate assemblies (14) and the two second connecting ends (12), and the edge of the partition plate (52) extends into the intermediate groove (22), and the magnetic ring (31) forms the filling gap (231) between the mounting groove (23) and the cover body (51).

18. The terminal connector of claim 13, wherein, The cross section of the central hole (315) in the extension direction is a rounded rectangle, and the first side wall (311) and the third side wall (313) form two short sides of the rounded rectangle respectively; The two intermediate assemblies (14) are arranged along the long side of the rounded rectangle, and the plurality of first sections (41) of the same intermediate assembly (14) are arranged along the short side of the rounded rectangle.

19. An electric drive assembly, characterized by The electric drive assembly comprises: A power module (7); A motor controller (8); and The terminal connector according to any one of claims 1 to 18, wherein the first connection terminal (11) is connected to the power supply module (7), and the second connection terminal (12) is connected to the motor controller (8).

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