Terminal connector and electric drive assembly

Abstract

The embodiment of the invention discloses a terminal connector and an electric driving 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 present invention relates to the technical field of electric vehicles, and in particular to a terminal connector and an electric drive assembly. Background Art

[0002] The connector set between the power battery and the motor controller can transmit the power of the power battery to the motor controller, and then use the motor controller to drive the motor to rotate. Setting a filter capacitor on the connector can filter the noise caused by external interference or changes in the potential difference between signal lines. However, this also makes the structure of the connector complicated and the volume increases. How to simplify the structure of the connector while ensuring the filtering function has become a problem that needs to be solved. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides a terminal connector and an electric drive assembly, wherein a plurality of first sections of the conductive member are arranged at intervals to form an intermediate component disposed on the magnetic ring, thereby avoiding the need to dispose a capacitor on the terminal connector and making the terminal connector more compact.

[0004] According to a first aspect of an embodiment of the present invention, there is provided a terminal connector, the terminal connector comprising:

[0005] case;

[0006] A filter unit, disposed in the housing and comprising a magnetic ring; and

[0007] A terminal block, disposed in the housing and comprising a plurality of conductive members arranged at intervals, wherein the conductive member comprises a first connection end, a second connection end and an extension body, and at least a portion of the first connection end and at least a portion of the second connection end are exposed outside the housing;

[0008] The extension body extends from the first connection end to the second connection end and includes a plurality of first sections in the extension direction. The plurality of first sections are arranged at intervals to form an intermediate component. The plurality of intermediate components are penetrated through the magnetic ring along the axial direction of the magnetic ring and coupled with the magnetic ring.

[0009] Further, the magnetic ring includes a first side wall in the circumferential direction, the inner side surface of the magnetic ring forms a central hole, and the intermediate component is located in the central hole;

[0010] The extension body is bent and extended to surround the first side wall for multiple turns, and the first connecting end and the second connecting end extend from two ends of the central hole.

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

[0012] Connecting segments; and

[0013] An extension section is bent to form an accommodation gap, the accommodation gap has a first opening, the first openings of the conductive members are oriented in the same direction, the extension section includes the first section, and a portion of the first side wall is spaced apart and disposed in the accommodation gap;

[0014] The connecting section is located at a side of the extending section where the first opening is provided, and the extending section is electrically connected to the first connecting end or the second connecting end through the connecting section.

[0015] 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, a plurality of accommodation gaps of the same conductive member at least partially overlap and correspond to the first side wall.

[0016] Furthermore, the extension interval also includes:

[0017] The second paragraph; and

[0018] a third section, arranged on the outer side of the magnetic ring, the third section and the first section extend in parallel along the axial direction of the magnetic ring and are connected through the second section, part of the first sections have a first pair of joints, the third section has a second pair of joints, the first pair of joints and the second pair of joints are located on a side of the extension section away from the second section, each of the first pair of joints is located on the same side of the conductive member, and a plurality of the first sections include a side section, the side section is located on the same side of each of the extension sections, one end of the side section is connected to the first connecting end, and the other end forms the first pair of joints;

[0019] The extension body is configured such that the connection section is connected between two adjacent extension sections or between adjacent side sections and the extension section, and both ends of the connection section are respectively connected to the first pair of joints and the second pair of joints.

[0020] Furthermore, the conductive member includes two extension sections, two connecting sections and the side section, the first section of the extension section away from the side section is connected to the second connecting end, the extension section close to the side section is connected to one end of the side section through the connecting section, and the other end of the side section is connected to the first connecting end.

[0021] Further, the connecting section includes a first connecting block, a second connecting block and a bending area connected between the first connecting block and the second connecting block;

[0022] The first connection block is connected to the first pair of joints and is in the same plane as the first pair of joints, the second connection block is connected to the second pair of joints and is in the same plane as the second pair of joints, and the bending area is bent from one plane to another adjacent plane.

[0023] Furthermore, the housing is an injection molded part and has a receiving ring groove, and the receiving ring groove surrounds the intermediate component;

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

[0025] Furthermore, a connection window is formed between the first pair of joints and the second pair of joints corresponding to the same connection segment;

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

[0027] Furthermore, the terminal connector further comprises a cover portion, the cover portion comprises a cover body, and the cover body is provided with an avoidance window;

[0028] The cover portion passes through the connection window and is disposed in the accommodating ring groove, and the first pair of joints and the second connection end extend out from the avoidance window.

[0029] Furthermore, the magnetic ring further includes a second side wall connected to the first side wall in the circumferential direction;

[0030] The connecting window has a first window edge arranged at the first pair of joints and a second window edge arranged at the second pair of joints, the first window edge is opposite to the second window edge and is 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 far 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 pair of joints and a fourth window edge arranged at the second pair of joints;

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

[0034] Further, the plurality of conductive members include a first conductive member and a second conductive member;

[0035] The magnetic ring further includes a second side wall and a third side wall in the circumferential direction, the third side wall is spaced apart from and arranged opposite to the first side wall, and the second side wall is connected between the third side wall and the first side wall;

[0036] The extension body of the first conductive member surrounds the first side wall, and the extension body of the second conductive member surrounds the second side wall. The extension directions of the extension body of the first conductive member and the extension body of the second conductive member are opposite and the number of turns are the same.

[0037] Furthermore, the filtering unit further includes:

[0038] The middle magnet is arranged between the first conductive member and the second conductive member, and the middle magnet is coupled with the first conductive member, the second conductive member and the magnetic ring.

[0039] Further, the intermediate magnet is a plate-like structure, and the plate-like structure has a first plate surface and a second plate surface;

[0040] The first plate surface faces the first side wall, a first coupling space is formed between the first plate surface and the first side wall, and the second plate surface faces the third side wall, a second coupling space is formed between the second plate surface and the third side wall;

[0041] The intermediate component of the first conductive member and the intermediate component 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, the mounting groove includes a receiving ring groove and an intermediate groove which are interconnected, the intermediate groove is located at the center of the receiving ring groove and between the two intermediate components;

[0043] The magnetic ring is arranged in the accommodating ring groove, the middle magnet is arranged in the middle 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 pair of joints;

[0046] The terminal connector further comprises a cover portion, the cover portion comprises a cover body and a partition, and the cover body is provided with an escape window;

[0047] The cover body is arranged on the accommodating ring groove, the first pair of joints and the second connecting end extend from the avoidance window, the partition is located between the two intermediate components and between the two second connecting ends, and the plate edge of the partition extends into the intermediate groove, and the filling gap is formed between the magnetic ring (31), the installation groove and the cover body.

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

[0049] The two intermediate components are arranged along the long sides of the rounded rectangle, and the plurality of first sections of the same intermediate component are arranged along the short sides of the rounded rectangle.

[0050] In a second aspect, an embodiment of the present invention further provides an electric drive assembly, the electric drive assembly comprising:

[0051] Power module;

[0052] Motor controller; and

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

[0054] The terminal connector and electric drive assembly of the embodiment of the present invention arrange multiple conductive parts and filter parts of the terminal row on the housing, and arrange the first connection end and the second connection end at the two ends of the extension body respectively to conduct the current. Thus, multiple first sections are arranged on the extension body, and the multiple first sections are arranged at intervals to form an intermediate component arranged in the magnetic ring. The conductive parts can pass through the magnetic ring multiple times by using the intermediate component, thereby increasing the coupling strength between the terminal row and the magnetic ring, and improving the filtering effect of the magnetic ring on common mode noise. On the other hand, it is avoided to set a capacitor on the terminal connector. Thereby, the structure of the terminal connector is simplified, making the volume of the terminal connector more compact. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0056] Figure 1 is a schematic structural diagram of one side of a terminal connector according to an embodiment of the present invention;

[0057] Figure 2 is a schematic structural diagram of the other side of the terminal connector according to an embodiment of the present invention;

[0058] Figure 3 is an exploded schematic diagram of one side of a terminal connector according to an embodiment of the present invention;

[0059] Figure 4 is an exploded schematic diagram of the other side of the terminal connector according to an embodiment of the present invention;

[0060] Figure 5 yes Figure 1 Schematic cross-sectional view at AA in the middle;

[0061] Figure 6 is a schematic structural diagram of one side of a conductive member according to an embodiment of the present invention;

[0062] Figure 7 is a schematic structural diagram of the other side of the conductive member of an embodiment of the present invention;

[0063] Figure 8 is an exploded schematic diagram of a terminal block according to an embodiment of the present invention;

[0064] Fig. 9 is a schematic structural diagram of a filter unit according to an embodiment of the present invention;

[0065] Fig.10 is a schematic structural diagram of an extension interval of an embodiment of the present invention;

[0066] Fig.11 is a schematic structural diagram of an extension section and a side section of an embodiment of the present invention;

[0067] Fig.12 Schematic diagram of a circuit of an electric drive assembly according to an embodiment of the present invention.

[0068] Description of reference numerals:

[0069] 1-Terminal block;

[0070] 11-first connection end; 12-second connection end; 13-extension body; 14-middle component; 15-extension interval; 151-accommodation gap; 152-first opening; 153-first pair of joints; 154-second pair of joints; 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- Shell;

[0072] 21-accommodating ring groove; 22-middle groove;

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

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

[0075] 3- Filtering unit;

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

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

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

[0079] 4- Conductive parts;

[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;

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

[0085] 52-partition;

[0086] 53- baffle;

[0087] 6-Filling glue;

[0088] 7- Power module;

[0089] 8- Motor controller. DETAILED DESCRIPTION

[0090] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. It is possible for a person skilled in the art to fully understand the present invention without the description of these details. In order to avoid confusing the essence of the present invention, known methods, processes, flows, components and circuits are not described in detail.

[0091] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0092] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0093] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0094] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] For ease of explanation, spatially relative terms such as "inside", "outside", "below", "below", "lower", "above", "upper", etc. are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figure is turned over, an element described as being "below" or "below" other elements or features will then be positioned as being "above" the other elements or features. Thus, the example term "below" can include both the orientations of above and below. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0096] Figure 1 and Figure 2 Schematic diagram of the structure of the terminal connector of this embodiment. Figure 3 and Figure 4 Schematic diagram of an exploded view of the terminal connector of this embodiment.

[0097] In some embodiments, Figure 1-Figure 2 As shown, the terminal connector in this embodiment includes a housing 2 and a terminal row 1, a filter part 3 and a cover part 5 arranged in the housing 2. Figure 3-Figure 4 As shown, the terminal row 1 includes a plurality of conductive members 4 arranged at intervals. Each conductive member 4 is used to form an electrical path. The conductive member 4 includes a first connection end 11, an extension body 13 and a second connection end 12 in the extension direction. At least part of the first connection end 11 and at least part of the second connection end 12 are exposed outside the housing 2.

[0098] Specifically, the filter unit 3 in this 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. Thereby, the noise on the terminal row 1 is prevented from interfering with the electrical equipment connected to the second connection terminal 12. Common mode noise refers to the same noise that appears on the positive and negative poles of the signal line at the same time. That is, the disturbance of the two signal lines in the same direction relative to the ground (or a reference point) potential. Differential mode noise refers to the noise that appears between the positive and negative poles of the signal line, that is, the noise caused by the change in the potential difference between the two signal lines.

[0099] Specifically, Figure 1 As shown, the first connection end 11 extends in a straight line and has a first contact surface. The second connection end 12 extends in 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 planes and face upwards of the terminal connector, and current can 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 devices.

[0100] Optionally, the conductive member 4 in this embodiment can be made of conductive materials such as copper (e.g., T2 copper) or alloy. The housing 2 can be made of non-conductive materials such as rubber, plastic or plastic. Thus, the creepage distance between the multiple conductive members 4 spaced apart in the housing 2 is ensured.

[0101] Figure 5 and yes Figure 1 The filter unit 3 in the figure includes a magnetic ring 31 and an intermediate magnet 32 ​​located inside the magnetic ring 31. The housing 2 is buckled with the cover 5, thereby fixing the filter unit 3 on the inside of the terminal connector. The material of the magnetic ring 31 can be nanocrystalline material. The magnetic ring 31 can filter common mode noise.

[0102] Figure 6 and Figure 7 This is a schematic diagram of the structure of the conductive member 4. Figure 6 The conductive member 4 in the embodiment is a first conductive member 4a, Figure 7 The conductive member 4 in the figure is the second conductive member 4b. The arrows of the conductive member 4 in the two figures show a specific current flow direction, that is, the current flow direction will also change according to the different connection methods of the terminal connector. In addition, the winding directions of the first conductive member 4a and the second conductive member 4b are opposite.

[0103] Figure 8 Schematic diagram of the explosion of the terminal block 1 of this embodiment.

[0104] In some embodiments, Figure 5-Figure 8As shown, the extension body 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 are arranged at intervals to form an intermediate component 14, and the plurality of intermediate components 14 are arranged in the axial direction of the magnetic ring 31 and coupled with the magnetic ring 31. The extension body 13 can be configured as a belt-like structure, and the plurality of first segments 41 are arranged at intervals in the extension direction of the belt-like structure, and the plurality of first segments 41 are distributed at intervals in the thickness direction of the belt-like structure.

[0105] In this embodiment, the number of the first sections 41 may be two, three or more. When the number of the first sections 41 is multiple, compared with only one first section 41, the coupling strength between the conductive member 4 and the magnetic ring 31 can be increased, and the filtering effect of the filter unit 3 on the noise in a specific frequency band on the terminal block 1 can be improved. The magnetic ring 31 can filter out the common mode noise on the terminal block 1, and reduce the interference of the common mode noise on the electrical equipment connected to the second connection terminal 12.

[0106] In summary, the terminal connector in this embodiment sets the multiple conductive parts 4 and the filter part 3 of the terminal row 1 on the housing 2, and sets the first connection end 11 and the second connection end 12 at the two ends of the extension body 13 respectively to conduct the current. Therefore, a plurality of first sections 41 are set on the extension body 13, and the plurality of first sections 41 are arranged at intervals to form an intermediate component 14 set in the magnetic ring 31. The conductive part 4 can pass through the magnetic ring 31 multiple times by using the intermediate component 14, thereby increasing the coupling strength between the terminal row 1 and the magnetic ring 31, and improving the filtering effect of the magnetic ring 31 on the common mode noise of a specific frequency band. On the other hand, it is avoided to set a capacitor on the terminal connector. Thereby, the structure of the terminal connector is simplified, and the volume of the terminal connector is made more compact.

[0107] Fig. 9 Schematic diagram of the structure of the filter unit 3 of this embodiment.

[0108] In some embodiments, Figure 6 and Fig. 9 As shown, the magnetic ring 31 includes 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 component 14 is located in the central hole 315. The extension body 13 is bent and extended and surrounds the first side wall 311 for multiple turns, and the first connection end 11 and the second connection end 12 extend from both ends of the central hole 315.

[0109] Therefore, the conductive member 4 in this 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 multiple times along the extension body 13, further improving the filtering effect of the magnetic ring 31. In addition, the occupied volume of the terminal block 1 can also be reduced.

[0110] Optionally, the extension body 13 may surround the first side wall 311 two, three or more times. Figure 6 For example, the extension body 13 in the figure surrounds the first side wall 311 twice and then surrounds it half a circle, so that the first connection end 11 and the second connection end 12 are respectively located on both sides of the magnetic ring 31, so as to facilitate the installation operation of the terminal connector.

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

[0112] Further reference Figure 4 As shown, the accommodation gap 151 has a first opening 152, and the first openings 152 of each conductive member 4 are oriented in the same direction. The extension section 15 includes the first section 41, and part of the first side wall 311 is disposed in the accommodation gap 151, and the first side wall 311 is not in contact with the accommodation gap 151. The connecting section 44 is located on one side of the extension section 15 where the first opening 152 is disposed, and the extension section 15 is electrically connected to the first connection end 11 or the second connection end 12 through the connecting section 44.

[0113] In the assembly process of the terminal connector of this embodiment, the magnetic ring 31 can be set in the accommodating gap 151 through the first opening 152. In this form, the various regions of the extension body 13 are in a discontinuous state. Then, the connecting section 44 is set at the position of the first opening 152, so that the various regions of the extension body 13 are electrically overlapped together through the connecting section 44, thereby forming an electrical path. As a result, the installation method of the terminal row 1 is simplified, so that the conductive member 4 can be roughly wound around the first side wall 311 in a spiral form, thereby improving the coupling strength between the conductive member 4 and the magnetic ring 31, and making the structure of the terminal row 1 more compact.

[0114] Fig.10 1 is a schematic diagram of the structure of the extension section 15 of this embodiment. In the figure, the outline of the extension section 15 located at the lower layer is shown with a thick solid line, and only one extension section 15 is shown on the left side.

[0115] In some embodiments, Figure 8 As shown, the extension body 13 includes a plurality of extension sections 15 arranged at intervals in the extension direction. Fig.10 As shown, in the arrangement direction of the multiple extension intervals 15, the multiple accommodation gaps 151 of the same conductive member 4 at least partially overlap and correspond to the first side wall 311. Therefore, the magnetic ring 31 can be sleeved on the outside of the intermediate component 14 through the accommodation gap 151 to avoid interference between the first side wall 311 and the extension interval 15.

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

[0117] In some embodiments, 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 on the outer side of the magnetic ring 31. The third section 43 extends parallel to 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 pair of joints 153, and 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 section 15 away from the second section 42. Each first pair of joints 153 is located on the same side of the conductive member 4, and the plurality of first sections 41 include a side section 411. The side section 411 is located on the same side of each extension section 15, and one end of the side section 411 is connected to the first connecting end 11, and the other end forms a first pair of joints 153. The connecting section 44 is connected between two adjacent extension sections 15 or between the adjacent side section 411 and the extension section 15, and the two ends of the connecting section 44 are respectively connected to the first pair of joints 153 and the second pair of joints 154.

[0118] Specifically, a first section 41 is provided as a side section 411 at the top of the terminal block 1, and the current fed into the terminal block 1 can first pass through the side section 411 and the magnetic ring 31 to filter out the common mode noise. The extension section 15 can be configured as a U-shaped structure, and the notch of the U-shaped structure faces the same side of the housing 2. The extension section 15 can be formed by cutting a metal sheet by laser cutting, or by stamping to reduce the processing cost of the terminal block 1.

[0119] In some embodiments, Figure 8 As shown, the connecting section 44 includes a first connecting block 441, a second connecting block 442, and a bending area 443 connected between the first connecting block 441 and the second connecting block 442. Figure 6 As shown, 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 another adjacent plane.

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

[0121] In some embodiments, Figure 2 and Figure 4 As shown, the housing 2 is an injection molded part and has an accommodating ring groove 21, which surrounds the intermediate component 14. The terminal block 1 is arranged in the housing 2 as an insert, and the first pair of connectors 153 and the second pair of connectors 154 extend from the housing 2.

[0122] Specifically, the housing 2 and part of the conductive member 4 in this embodiment can be made by insert molding, so that the intermediate component 14 is fixed to the inner side of the housing 2, and the first pair of joints 153 and the second pair of joints 154 are exposed to the outer side of the housing 2 to form an injection molded component. Thus, the operator can first place the magnetic ring 31 in the receiving ring groove 21, and then connect the connecting section 44 between the first pair of joints 153 and the second pair of joints 154. Thus, the extension body 13 can surround the side wall of the magnetic ring 31.

[0123] In some embodiments, Figure 4 As shown, a connection window 155 is formed between the first pair of joints 153 and the second pair of joints 154 corresponding to the same connection section 44. Figure 4 The dotted line in FIG. 1 shows the general outline of the connection window 155 located below. The magnetic ring 31 passes through the connection window 155 and is arranged in the accommodating ring groove 21. Figure 8 As shown, the connecting section 44 is disposed at the connecting window 155 .

[0124] In this embodiment, the connecting section 44 is fixedly connected to the extension section 15 through the connecting window 155. Before the connecting section 44 is connected to the extension section 15, the accommodating ring groove 21 is open toward one side of the terminal connector through the connecting window 155, so that the magnetic ring 31 can pass through the connecting window 155 and enter the accommodating ring groove 21.

[0125] In some embodiments, Figure 3 As shown, the terminal connector also includes a cover 5. Figure 4 As shown, the cover 5 includes a cover body 51 , and the cover body 51 is provided with an escape window 511 . The cover 5 passes through the connection window 155 and covers the accommodating ring groove 21 , and the first butt joint 153 and the second connection end 12 extend out of the escape window 511 .

[0126] Specifically, the cover 51 includes a side plate 512, and the side plate 512 extends around to form an avoidance window 511. When the cover 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. In this way, the cover 5 is matched with the structure of the injection molding component.

[0127] In some embodiments, Fig. 9 As shown, the magnetic ring 31 also includes a second side wall 312 connected to the first side wall 311 in the circumferential direction. Figure 4 As shown, the connection window 155 has a first window edge 1551 provided at the first butt joint 153 and a second window edge 1552 provided at the second butt joint 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 to the two ends of the connection 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 connection 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 connection window 155 close to the second side wall 312.

[0128] Fig.11 1 is a schematic diagram of the structure of the extension section 15 and the side section 411 of this embodiment. In the figure, the outline of the side section 411 located on the upper side is shown by a dotted line, and the outline of the extension section 15 located on the lower side is shown by a thick solid line.

[0129] Specifically, Fig.11 As shown, in the arrangement direction of the two extension sections 15, the distance between the first window edge 1551 and the second window edge 1552 of the lower connection window 155 is a distance L1, and the distance between the first window edge 1551 and the second window edge 1552 of the upper connection window 155 is a distance L2. The distance L1 is smaller than the distance L2. That is, the first window edge 1551 and the second window edge 1552 of the lower are on the inner side of the upper connection window 155.

[0130] Specifically, the connecting section 44 includes a first connecting section 44a and a second connecting section 44b, the first connecting section 44a and the second connecting section 44b extend in parallel, and the length of the first connecting section 44a is smaller than that of the second connecting section 44b. When the operator sets the first connecting section 44a at the lower connecting window 155, the welding position of the first connecting section 44a and the first window edge 1551 and the second window edge 1552 will pass through the upper connecting window 155 and face the upper part of the injection molding component. Thus, the operator can use the beam or welding head of the laser welding to weld the second connecting section 44b, and the upper connecting window 155 can play the role of avoiding the beam or welding head. After the second connecting section 44b is welded, the first connecting section 44a can be welded.

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

[0132] In some embodiments, Figure 4 As shown, the connecting window 155 has a third window edge 1553 disposed at the first butt joint 153 and a fourth window edge 1554 disposed at the second butt joint 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 first opening 152 is formed on the opposite side of the third window edge 1553 and the fourth window edge 1554. Figure 6 As shown, 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 .

[0133] The third window edge 1553 and the fourth window edge 1554 in this embodiment can limit the connection section 44, ensuring the position accuracy between the connection section 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 connection section 44 and the extension section 15, which helps to improve the conduction effect of the current.

[0134] Specifically, Fig.10 As shown, a second opening 1555 is provided on one side of the connection window 155 away from the first opening 152, and the accommodation gap 151 is opened toward one side of the extension section 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, Figure 6-Figure 7 As shown, the plurality of conductive members 4 include a first conductive member 4a and a second conductive member 4b. Fig. 9 As shown, the magnetic ring 31 further includes a third side wall 313 in the circumferential direction, and the third side wall 313 is spaced apart from and arranged 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 directions of the extension body 13 of the first conductive member 4a and the extension body 13 of the second conductive member 4b are opposite and the number of turns is the same.

[0136] The first conductive member 4a and the second conductive member 4b in this embodiment can be used as a positive transmission line and a negative transmission line, respectively, so as to provide DC power supply for the electrical equipment. At the same time, the winding directions of the two extension bodies 13 are opposite and the number of turns is configured to be the same. The inductance values ​​of the positive transmission line and the negative transmission line can be kept consistent, which is conducive to the stable conduction of current. In addition, different areas of the magnetic ring 31 are fully utilized.

[0137] In some embodiments, Figure 3 As shown, the filter unit 3 further includes an intermediate magnet 32. The intermediate magnet 32 ​​is spaced between the first conductive member 4a and the second conductive member 4b, and the intermediate magnet 32 ​​is coupled with the first conductive member 4a, the second conductive member 4b and the magnetic ring 31. The intermediate magnet 32 ​​in this embodiment can cooperate with the magnetic ring 31 to filter out the differential mode noise on the terminal row 1. Thus, it is avoided to install a capacitor on the terminal connector, and the structure of the terminal connector is further simplified.

[0138] In some embodiments, Figure 3 and Fig. 9 As shown, the middle magnet 32 ​​is 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 coupling 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 coupling space 332 is formed between the second plate surface 322 and the third side wall 313. The middle component 14 of the first conductive member 4a and the middle component 14 of the second conductive member 4b are respectively located in the first coupling space 331 and the second coupling space 332.

[0139] In this embodiment, the middle magnet 32 ​​and the first side wall 311 can be equivalent to the two plates of the first capacitor, and the middle magnet 32 ​​and the third side wall 313 can be equivalent to the two plates of the second capacitor. The magnetic lines of force of the first capacitor and the second capacitor pass through the two middle components 14 respectively, thereby filtering out the differential mode noise of the two middle components 14.

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

[0141] In some embodiments, as shown in FIG4 , the housing 2 has a mounting groove 23, and the mounting groove 23 includes a receiving ring groove 21 and a middle groove 22 that are connected to each other, and the middle groove 22 is located at the center of the receiving ring groove 21 and between the two middle components 14. Figure 5As shown, the magnetic ring 31 is arranged in the accommodating ring groove 21, the middle magnet 32 ​​is arranged in the middle groove 22, and a partial filling gap 231 is formed between the filter unit 3 and the inner wall of the mounting groove 23. The terminal connector also includes a filling glue 6, and the filling glue 6 fills the above-mentioned filling gap 231. The filling glue 6 in this embodiment can simplify the fixing method of the filter unit 3 and the housing 2.

[0142] Specifically, the filling glue 6 in this embodiment can be a silicone rubber glue. For example, two-component silicone rubber, RTV silicone rubber glue or heat vulcanized silicone rubber glue (HTV). When the filling glue 6 is cured, the filter unit 3 can be fixed in the housing 2. In addition, the filter unit 3 can also play a role in impact resistance and heat conduction.

[0143] In some embodiments, 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 out 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 plate edge of the partition 52 extends into the middle groove 22, and a filling gap 231 is formed between the magnetic ring 31, the installation groove 23 and the cover 51. Thus, the filling glue 6 can fix the cover 5 and the housing 2 together.

[0144] Specifically, 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 members 4 exposed outside the shell 2 from contacting each other and causing a short circuit. At the same time, it can also provide a sufficient creepage distance between the first conductive member 4a and the second conductive member 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 annular 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 an intermediate groove 22. The two intermediate blocks 25 extend to the outside of the accommodating annular 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 51 further includes a flange 513, which is disposed at the edge of the cover 51 and is bent toward the housing 2. When the cover 5 and the housing 2 are fixed together, 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, Figure 2 and Figure 4 As shown, the cover 5 also includes a baffle 53, which is convexly arranged on the side of the cover body 51 away from the accommodating ring groove 21, and the baffle 53 is located on the side of the first connection end 11 and the second connection end 12 away from the first contact surface and the second contact surface. At the same time, the baffle 53 is connected to the partition 52. To reinforce the partition 52. When the electrical equipment is connected to the first contact surface and the second contact surface, the baffle 53 can limit the bending amplitude of the first connection end 11 and the second connection end 12 to avoid excessive bending. The cover 5 can be an injection molded part, for example, made of polyurethane, to ensure that the cover 5 has sufficient strength.

[0147] In some embodiments, Fig. 9 As shown, the cross section in the extension direction of the center hole 315 is a rounded rectangle, and the first side wall 311 and the third side wall 313 respectively form two short sides of the rounded rectangle. The two intermediate components 14 are arranged along the long sides of the rounded rectangle, and the multiple first sections 41 of the same intermediate component 14 are arranged along the short sides of the rounded rectangle. As a result, the shape of the magnetic ring 31 is better adapted to the first conductive member 4a and the second conductive member 4b.

[0148] Specifically, the magnetic ring 31 further includes a fourth side wall 314. The fourth side wall 314 is spaced apart from and arranged in parallel with 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 symmetrically arranged on both sides of the intermediate magnet 32, and does not contact the filter unit 3.

[0149] It is easy to understand that the coupling strength between the conductive element 4 and the filter unit 3 is positively correlated with the inductance value of the conductive element 4. The inductance value of the conductive element 4 can be calculated according to the formula L=N 2 ×AL estimation. Where N is the number of turns of the conductive member 4 on the magnetic ring 31, and AL is the inductance value of one turn of the conductive member 4. It can be seen that when the conductive member 4 includes three first sections 41, that is, the conductive member 4 passes through the magnetic ring 31 three times, the inductance value of the conductive member 4 is increased by about 9 times compared with a single turn.

[0150] Table 1

[0151]

[0152]

[0153] Table 1 is a comparison of the inductance and impedance values ​​of the terminal connector when winding a single turn (the number of the first section 41 is one) and winding three turns (the number of the first section 41 is three) at 10kHz, 100kHz and 30MHz. The unit of inductance in the table is microhenry (uH). The unit of impedance is ohm (Ω). Taking 10kHz as an example, the inductance value of winding three turns is approximately 9 times the inductance value of winding a single turn. It can be seen that the filter unit 3 can better filter out the noise of the conductive member 4.

[0154] Table 2

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

[0156] Table 2 shows the insertion loss of the terminal connector at different frequencies when winding a single turn (the number of the first section 41 is one) and winding three turns (the number of the first section 41 is three). Taking 10kHz as an example, the insertion loss when winding three turns is less than the insertion loss when winding a single turn. Therefore, the filter unit 3 can be well coupled with the terminal row 1 and filter out the noise of the conductive member 4.

[0157] The terminal connector in the above embodiment can be installed in the following manner. In some embodiments, first, the extension section 15 is manufactured by laser cutting or stamping. Figure 3 As shown, the first nut 16 is fixed to the first connecting end 11, and the first nut 16 corresponds to the through hole of the first connecting end 11. Secondly, the extension section 15 and the first nut 16 are injection molded together with the shell 2 using an insert molding process. Again, a filling glue 6 is applied to the mounting groove 23, and the magnetic ring 31 and the middle magnet 32 ​​are respectively arranged in the accommodating ring groove 21 and the middle groove 22. The filling glue 6 is applied to the outer end surface of the magnetic ring 31. Again, the cover 5 is covered on the accommodating ring groove 21. Again, the first connecting section 44a and the second connecting section 44b are welded to the corresponding connecting windows 155 in sequence. Finally, the second nut 17 is fixed to the second connecting end 12, and the second nut 17 corresponds to the through hole of the second connecting end 12.

[0158] Fig.12 Schematic diagram of the circuit of the electric drive assembly of this embodiment.

[0159] In an optional implementation, if Fig.12 As shown, the terminal connector in the above embodiment can be applied to an electric drive assembly. The electric drive assembly also includes a power module 7 and a motor controller 8.

[0160] 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 respectively connected between the power module 7 and the motor controller 8 as a positive transmission line and a negative transmission line.

[0161] In summary, the electric drive assembly in this embodiment arranges multiple conductive parts 4 and the filter part 3 of the terminal row 1 of the terminal connector on the housing 2, and arranges the first connection end 11 and the second connection end 12 at the two ends of the extension body 13 respectively to conduct the current. Therefore, multiple first sections 41 are arranged on the extension body 13, and the multiple first sections 41 are arranged at intervals to form an intermediate component 14 arranged in the magnetic ring 31. The conductive part 4 can pass through the magnetic ring 31 multiple times using the intermediate component 14, thereby increasing the coupling strength between the terminal row 1 and the magnetic ring 31, and improving the filtering effect of the magnetic ring 31 on common mode noise. On the other hand, it is avoided to set a capacitor on the terminal connector. Thereby, the structure of the terminal connector is simplified, making the volume of the terminal connector more compact.

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

[0163] In summary, in the vehicle of this embodiment, multiple conductive parts 4 and the filter part 3 of the terminal row 1 of the terminal connector are arranged on the housing 2, and the first connection end 11 and the second connection end 12 are respectively arranged at both ends of the extension body 13 to conduct the current. Therefore, multiple first sections 41 are arranged on the extension body 13, and the multiple first sections 41 are arranged at intervals to form an intermediate component 14 arranged in the magnetic ring 31. The conductive part 4 can pass through the magnetic ring 31 multiple times using the intermediate component 14, thereby increasing the coupling strength between the terminal row 1 and the magnetic ring 31, and improving the filtering effect of the magnetic ring 31 on common mode noise. On the other hand, it is avoided to set a capacitor on the terminal connector. Thereby, the structure of the terminal connector is simplified, making the volume of the terminal connector more compact.

[0164] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A terminal connector, characterized in that: The terminal connector comprises: Housing (2); A filter unit (3) is arranged on the housing (2) and comprises a magnetic ring (31); and A terminal block (1) is arranged on the housing (2) and comprises a plurality of conductive members (4) arranged at intervals, wherein the conductive members (4) comprise a first connection end (11), a second connection end (12) and an extension body (13), and at least a portion of the first connection end (11) and at least a portion of the second connection end (12) are exposed outside the housing (2); The extension body (13) extends from the first connection end (11) to the second connection end (12) and comprises a plurality of first sections (41) in the extension direction, the plurality of first sections (41) are arranged at intervals to form an intermediate component (14), and the plurality of intermediate components (14) are arranged in the axial direction of the magnetic ring (31) and are coupled to the magnetic ring (31).

2. The terminal connector according to claim 1, characterized in that: The magnetic ring (31) comprises a first side wall (311) in the circumferential direction, the inner side surface of the magnetic ring (31) forms a central hole (315), and the intermediate component (14) is located in the central hole (315); The extension body (13) bends and extends to surround the first side wall (311) multiple times, and the first connection end (11) and the second connection end (12) extend from both ends of the central hole (315).

3. The terminal connector according to claim 2, characterized in that: The extension body (13) further comprises, in the extension direction: a connecting section (44); and An extension section (15) is bent to form an accommodation gap (151), the accommodation gap (151) having a first opening (152), the first opening (152) of each of the conductive members (4) having the same orientation, the extension section (15) comprising the first section (41), and a portion of the first side wall (311) being spaced apart and arranged in the accommodation gap (151); The connecting section (44) is located on a 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) through the connecting section (44).

4. The terminal connector according to claim 3, characterized in that: The extension body (13) comprises a plurality of extension sections (15) arranged at intervals in the extension direction, and 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).

5. The terminal connector according to claim 3, characterized in that: The extension interval (15) also includes: Paragraph 2 (42); and a third section (43) arranged on the outer side of the magnetic ring (31); the third section (43) and the first section (41) extend in parallel along the axial direction of the magnetic ring (31) and are connected through 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 a side of the extension section (15) away from the second section (42); each of the first pair of joints (153) is located on the same side of the conductive member (4); a plurality of the first sections (41) include a side section (411); the side section (411) is located on the same side of each of the extension sections (15); one end of the side section (411) is connected to the first connecting end (11); and the other end forms the first pair of joints (153); The extension body (13) is configured such that the connecting section (44) is connected between two adjacent extension sections (15) or between adjacent side sections (411) and the extension section (15), and the two ends of the connecting section (44) are respectively connected to the first pair of joints (153) and the second pair of joints (154).

6. The terminal connector according to claim 5, characterized in that: The conductive member comprises two extension sections (15), two connecting sections (44) and the side section (411); the first section (41) of the extension section (15) away from the side section (411) is connected to the second connecting end (12); the extension section (15) close to the side section (411) is connected to one end of the side section (411) through the connecting section (44); and the other end of the side section (411) is connected to the first connecting end (11).

7. The terminal connector according to claim 5, characterized in that: The connecting section (44) comprises a first connecting block (441), a second connecting block (442), and a bending area (443) connected between the first connecting block (441) and the second connecting block (442); The first connecting block (441) is connected to the first pair of joints (153) and is located in the same plane as the first pair of joints (153); the second connecting block (442) is connected to the second pair of joints (154) and is located in the same plane as the second pair of joints (154); and the bending area (443) is bent from one plane to another adjacent plane.

8. The terminal connector according to claim 5, characterized in that: The housing (2) is an injection-molded part and has a receiving annular groove (21), and the receiving annular groove (21) surrounds the intermediate component (14); Part of the terminal row (1) is arranged in the housing (2) as an insert, and the first pair of connectors (153) and the second pair of connectors (154) extend from the housing (2).

9. The terminal connector according to claim 8, characterized in that: A connection window (155) is formed between the first pair of joints (153) and the second pair of joints (154) corresponding to the same connection section (44); The magnetic ring (31) passes through the connecting window (155) and is arranged in the accommodating ring groove (21), and the connecting section (44) is arranged in the connecting window (155).

10. The terminal connector according to claim 9, characterized in that: The terminal connector further comprises a cover portion (5), wherein the cover portion (5) comprises a cover body (51), and the cover body (51) is provided with an avoidance window (511); The cover portion (5) passes through the connection window (155) and covers the accommodating annular groove (21), and the first pair of joints (153) and the second connection end (12) extend out from the avoidance window (511).

11. The terminal connector according to claim 9, characterized in that: The magnetic ring (31) further comprises a second side wall (312) connected to the first side wall (311) in the circumferential direction; The connecting window (155) comprises a first window edge (1551) arranged at the first pair of joints (153) and a second window edge (1552) arranged at the second pair of joints (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); the first window edge (1551) and the second window edge (1552) are respectively welded to 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).

12. The terminal connector according to claim 9, characterized in that: The connecting window (155) has a third window edge (1553) arranged at the first pair of joints (153) and a fourth window edge (1554) arranged at the second pair of joints (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 first opening (152) is formed on the opposite sides of the third window edge (1553) and the fourth window edge (1554), and the side 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 face of the magnetic ring (31) through the first opening (152).

13. The terminal connector according to claim 2, characterized in that: The plurality of conductive members (4) include 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) being spaced apart from and arranged opposite to the first side wall (311), and the second side wall (312) being 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), and the extension body (13) of the second conductive member (4b) surrounds the second side wall (312); the extension directions of the extension body (13) of the first conductive member (4a) and the extension body (13) of the second conductive member (4b) are opposite and the number of turns are the same.

14. The terminal connector according to claim 13, characterized in that: The filtering unit (3) further comprises: The intermediate magnet (32) is arranged between the first conductive member (4a) and the second conductive member (4b) at intervals, and the intermediate magnet (32) is coupled with the first conductive member (4a), the second conductive member (4b) and the magnetic ring (31).

15. The terminal connector according to claim 14, characterized in that: The intermediate magnet (32) is a plate-shaped 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 a first coupling 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 coupling space (332) is formed between the second plate surface (322) and the third side wall (313); The intermediate component (14) of the first conductive member (4a) and the intermediate component (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 according to claim 15, characterized in that: The housing (2) has a mounting groove (23), the mounting groove (23) comprising a receiving ring groove (21) and an intermediate groove (22) which are connected to each other, the intermediate groove (22) being located at the center of the receiving ring groove (21) and between the two intermediate components (14); The magnetic ring (31) is arranged in the accommodating ring groove (21), the intermediate magnet (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 installation groove (23); The terminal connector also includes a filling glue (6), and the filling glue (6) fills the filling gap (231).

17. The terminal connector according to claim 16, characterized in that: Part of the first section (41) has a first pair of joints (153); The terminal connector further comprises a cover portion (5), wherein the cover portion (5) comprises a cover body (51) and a partition plate (52), and the cover body (51) is provided with an avoidance window (511); The cover body (51) is covered on the accommodating ring groove (21), the first pair of joints (153) and the second connecting end (12) extend from the avoidance window (511), the partition plate (52) is simultaneously located between the two intermediate components (14) and between the two second connecting ends (12), and the plate 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 installation groove (23) and the cover body (51).

18. The terminal connector according to claim 13, characterized in that: The cross section of the central hole (315) in the extending direction is a rounded rectangle, and the first side wall (311) and the third side wall (313) respectively form two short sides of the rounded rectangle; The two intermediate components (14) are arranged along the long sides of the rounded rectangle, and the plurality of first sections (41) of the same intermediate component (14) are arranged along the short sides of the rounded rectangle.

19. An electric drive assembly, characterized in that: The electric drive assembly comprises: Power module (7); a motor controller (8); and According to the terminal connector according to any one of claims 1 to 18, the first connection end (11) is connected to the power module (7), and the second connection end (12) is connected to the motor controller (8).

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