Three-phase connector and vehicle

Abstract

The utility model discloses a three-phase connector and a vehicle. The three-phase connector comprises a shielding ring; the three-phase conducting bar is arranged on the shielding ring in a penetrating manner, and the three-phase conducting bar comprises three conducting bars which are distributed at intervals; the installation support is formed outside the shielding ring and the three-phase conducting bars in an injection molding mode, and the installation support comprises a separation layer located between every two adjacent conducting bars. According to the three-phase connector provided by the embodiment of the utility model, the three-phase connector is integrally designed and arranged, the shielding ring is arranged in the three-phase connector, high-frequency electromagnetic interference caused by a power module can be effectively reduced, and meanwhile, the U, V and W three-phase conducting bars connected with a motor are separated by the plastic separation layers, so that the creepage risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a three-phase connector and a vehicle. Background Art

[0002] New energy vehicles are developing rapidly, and electric drive systems are also developing towards high integration, high voltage and high power density. The highly integrated development of electric drive systems has achieved high integration of electric drive functions, and at the same time, the requirements for integrated structural design are becoming increasingly higher.

[0003] With the development of high-voltage platforms and the continuous improvement of electric drive power density, the application of SiC power modules has gradually increased. High-voltage SiC power modules will emit high-frequency electromagnetic interference, which will be transmitted to the motor through the three-phase copper busbar. This may cause the motor to generate shaft voltage and shaft current, affecting the service life of the motor bearings.

[0004] Currently, electromagnetic interference isolation for controllers is mainly concentrated on filtering and isolation on the DC bus input side. There is less filtering added to the three-phase AC copper bus output end, and it cannot be highly integrated and coupled inside the three-phase connector. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a three-phase connector, which meets the highly integrated design layout of the controller, and the space reserved in the connector is used to place the shielding ring, which can effectively reduce the high-frequency electromagnetic interference caused by the power module. At the same time, the three-phase conductive rows U, V, and W connected to the motor are separated by a plastic partition layer to reduce the risk of creepage.

[0006] According to the three-phase connector of the embodiment of the utility model, it includes: a shielding ring; a three-phase conductive bar, the three-phase conductive bar is passed through the shielding ring, and the three-phase conductive bar includes three conductive bars distributed at intervals; a mounting bracket, the mounting bracket is injection molded outside the shielding ring and the three-phase conductive bar, and the mounting bracket includes a partition layer located between two adjacent conductive bars.

[0007] According to the three-phase connector of the embodiment of the utility model, the three-phase conductive bus, mounting bracket, shielding ring, etc. are integrated into one through an injection molding one-piece design, thereby ensuring a stable and reliable connection between the components. The shielding ring can effectively reduce the high-frequency electromagnetic interference caused by the power module, and the one-piece design has high production efficiency. At the same time, the three-phase conductive bus U, V, and W connected to the motor are separated by a plastic partition layer to reduce the risk of creepage.

[0008] According to the three-phase connector of the embodiment of the utility model, the three conductive rows are respectively the first conductive row, the second conductive row and the third conductive row, the first conductive row includes the first transverse plate, the first main body plate and the first longitudinal plate connected in sequence, the second conductive row includes the second transverse plate, the second main body plate and the second longitudinal plate connected in sequence, and the third conductive row includes the third transverse plate, the third main body plate and the third longitudinal plate connected in sequence; wherein, the first main body plate, the second main body plate and the third main body plate all extend in the first direction and are spaced apart in the second direction, the first transverse plate, the second transverse plate and the third transverse plate all extend in the second direction and are spaced apart in the first direction, and the first longitudinal plate, the second longitudinal plate and the third longitudinal plate all extend in the third direction and are spaced apart.

[0009] According to the three-phase connector of the embodiment of the utility model, the first longitudinal plate, the second longitudinal plate and the third longitudinal plate are respectively provided with a first connection part, a second connection part and a third connection part, and in the projection of the first connection part, the second connection part and the third connection part along the first direction, the second connection part is located between the first connection part and the third connection part.

[0010] According to the three-phase connector of the embodiment of the utility model, the first longitudinal plate is bent along the second direction of the first main body plate, the second longitudinal plate includes a first bending section and a second bending section, the first bending section is bent along the second direction of the second main body plate and overlaps with the first longitudinal plate, the second bending section is bent along the side of the first bending section away from the second direction, the second connecting portion is located in the second bending section, and the first connecting portion is located at the bottom of the first longitudinal plate.

[0011] According to the three-phase connector of the embodiment of the utility model, the third longitudinal plate is bent along a side of the third body plate away from the second direction, and the third longitudinal plate and the second longitudinal plate are located in different planes.

[0012] According to the three-phase connector of the embodiment of the utility model, the mounting bracket includes a transverse sub-frame and a longitudinal sub-frame distributed in an L shape, the first transverse plate, the second transverse plate and the third transverse plate are located on the upper surface of the transverse sub-frame, and the first longitudinal plate, the second longitudinal plate and the third longitudinal plate are located on the side of the longitudinal sub-frame away from the transverse sub-frame.

[0013] According to the three-phase connector of the embodiment of the utility model, the extension lengths of the first main body plate, the second main body plate and the third main body plate along the first direction increase successively, and the extension lengths of the first longitudinal plate, the second longitudinal plate and the third longitudinal plate along the third direction decrease successively.

[0014] According to the three-phase connector of the embodiment of the utility model, the shielding ring is sleeved on the three-phase conductive bar and is closely attached to one side of the first longitudinal plate, the second longitudinal plate and the third longitudinal plate.

[0015] According to the three-phase connector of the embodiment of the utility model, the mounting bracket is equipped with a nut, and the nut avoids the position of the three-phase conductive bar.

[0016] The utility model embodiment discloses a vehicle, comprising a power module, a motor stator and the above-mentioned three-phase connector, wherein the motor stator is provided with a stator three-phase terminal, and the power module is connected to the stator three-phase terminal of the motor stator through the three-phase connector.

[0017] The advantages of the vehicle described above over the prior art and the advantages of the three-phase connector described above over the prior art are the same and will not be elaborated herein.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is an integrated diagram of a three-phase connector of an embodiment of the utility model;

[0021] Figure 2 is an exploded view of a three-phase connector according to an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of a three-phase conductive bar according to an embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the position of the three-phase conductive bar connected to the three-phase terminals of the stator in an embodiment of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the connection between the three-phase connector of the embodiment of the utility model and the power module and the motor stator.

[0025] Reference numerals:

[0026] Three-phase connector 100, three-phase conductive bar 1, first conductive bar 11, first transverse plate 111, first longitudinal plate 112, first body plate 113, first connecting portion 1121, second conductive bar 12, second transverse plate 121, second longitudinal plate 122, second body plate 123, first bending section 1221, second bending section 1222, second connecting portion 1223, third conductive bar 13, third transverse plate 131, third longitudinal plate 132, third body plate 133, third connecting portion 1321,

[0027] Mounting bracket 2, horizontal sub-frame 21, longitudinal sub-frame 22, first area 221, second area 222, third area 223, housing 23, nut 24,

[0028] Partition 3, first partition 31, second partition 32,

[0029] Shielding ring 4 , power module 5 , motor stator 6 , stator three-phase terminal 7 , stator first terminal 701 , stator second terminal 702 , stator third terminal 703 . DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] Unless otherwise specified, the front-to-back direction in this application is the longitudinal direction of the vehicle, that is, the X direction; the left-right direction is the lateral direction of the vehicle, that is, the Y direction; and the up-down direction is the vertical direction of the vehicle, that is, the Z direction.

[0032] Reference below Figure 1-Figure 5 A three-phase connector 100 according to an embodiment of the utility model is described. The three-phase connector 100 meets the requirements of a highly integrated design layout of a controller. A shielding ring 4 is placed in a reserved space in the three-phase connector 100, which can effectively reduce the high-frequency electromagnetic interference caused by the power module 5. At the same time, a plastic partition layer is used to separate the three-phase conductive bars 1 U, V, and W connected to the motor to reduce the risk of creepage.

[0033] like Figure 1-Figure 5 As shown, the three-phase connector 100 according to the embodiment of the utility model comprises: a shielding ring 4 , a three-phase conductive bar 1 and a mounting bracket 2 .

[0034] Among them, the three-phase conductive bar 1 is inserted into the shielding ring 4, and the three-phase conductive bar 1 includes three conductive bars distributed at intervals; the mounting bracket 2 is injection molded outside the shielding ring 4 and the three-phase conductive bar 1, and the mounting bracket 2 includes a partition layer located between two adjacent conductive bars.

[0035] In practice, the three-phase conductive bar 1 can be a copper bar. Of course, other optional metal materials can also be used according to actual conditions, as long as the dynamic thermal stability can be met. The middle part of the three-phase conductive bar 1 can be connected as a whole, and the three-phase conductive bar 1 is respectively connected to the stator three-phase terminals 7 of the power module 5 and the motor stator 6 at both ends, so that the three-phase connector 100 connects the power module 5 with the motor stator 6.

[0036] In addition, the stator three-phase terminals 7 of the motor stator 6 are respectively the stator first terminal 701, the stator second terminal 702 and the stator third terminal 703, which correspond to the U phase, V phase and W phase of the stator three-phase terminal 7 respectively. That is to say, there are three wires on the stator of the permanent magnet variable frequency motor, namely the U phase, V phase and W phase, which represent the three output phases of the motor respectively. When the motor is running, the speed and torque of the motor can be controlled by adjusting their voltage and frequency, wherein the voltage difference between the U phase, V phase and W phase is called the phase voltage, and the voltage sum of the U phase, V phase and W phase is called the line voltage; by connecting the U phase, V phase and W phase of the motor stator 6 to the power module 5 through the corresponding three-phase connector 100, and the three ends of the three-phase conductive bar 1 connected to the power module 5 are also the U phase, V phase and W phase, so that the three connection ends of the power module 5 and each different phase of the three-phase conductive bar 1 are connected correspondingly, each phase can be connected, thereby completing the conduction of alternating current.

[0037] In addition, the electromagnetic interference isolation of the controller is mainly concentrated on the filtering isolation on the DC bus input side. The high-voltage DC is input into the motor controller and enters the power module 5 after cosmetic filtering. Since the output terminals of the power module 5 are arranged along the X direction of the whole vehicle, the U phase, V phase, and W phase of the three-phase line terminals 7 of the motor stator 6 are arranged in the Z direction of the whole vehicle, and the position of the three-phase output terminals of the power module 5 is far away from the stator three-phase terminals 7, the three-phase AC power converted by the power module 5 is converted and transmitted to the motor stator 6 while reasonably considering the internal space layout of the controller.

[0038] In addition, the three-phase conductive bar 1 is passed through the shielding ring 4, and the shielding ring 4 is a common-mode magnetic ring. Specifically, the three conductive bars can be passed through the common-mode magnetic ring together, which can effectively reduce the high-frequency electromagnetic interference caused by the power module 5. The three-phase conductive bar 1 and the mounting bracket 2 are integrally formed, leaving a three-phase end interface connecting the power module 5 and the motor stator 6, ensuring the sealing of the entire three-phase connector 100, and the mounting bracket 2 and the three-phase conductive bar 1 are effectively and reliably fixed together through the integral molding process. The mounting bracket 2 uses a plastic part to ensure that the vibration offset of the three-phase conductive bar 1 is within an acceptable range, and the efficiency, quality and reliability are high; and at present, the U, V, and W three-phase copper bar terminals of most three-phase connectors 100 are on the same horizontal plane. Under mechanical vibration and impact conditions, there may be a risk of three-phase short circuit due to the close creepage distance and electrical distance. The mounting bracket 2 of the embodiment of the utility model is provided with a partition layer between two adjacent conductive bars. Combined with the plastic material of the mounting bracket 2, the risk of creepage short circuit between the U, V, and W three-phase ends connected to the motor can be reduced.

[0039] Therefore, the embodiment of the utility model can not only reduce the high-frequency interference caused by the power module 5, but also ensure the reliability and fixation of the connection between the mounting bracket 2 and the three-phase conductive bar 1, and reduce the risk of creepage short circuit between the U, V, and W three-phase terminals connected to the motor.

[0040] In some embodiments, reference Figure 3 As shown, the three conductive rows are respectively a first conductive row 11, a second conductive row 12 and a third conductive row 13, the first conductive row 11 includes a first transverse plate 111, a first main body plate 113 and a first longitudinal plate 112 connected in sequence, the second conductive row 12 includes a second transverse plate 121, a second main body plate 123 and a second longitudinal plate 122 connected in sequence, and the third conductive row 13 includes a third transverse plate 131, a third main body plate 133 and a third longitudinal plate 132 connected in sequence; wherein, the first main body plate 113, the second main body plate 123 and the third main body plate 133 all extend in the first direction and are spaced apart in the second direction, the first transverse plate 111, the second transverse plate 121 and the third transverse plate 131 all extend in the second direction and are spaced apart in the first direction, and the first longitudinal plate 112, the second longitudinal plate 122 and the third longitudinal plate 132 all extend in the third direction and are spaced apart.

[0041] In practice, the first body plate 113, the second body plate 123 and the third body plate 133 of the three conductive rows are stacked, and the first transverse plate 111 of the first conductive row 11, the second transverse plate 121 of the second conductive row 12 and the third transverse plate 131 of the third conductive row 13 are staggered along the first direction. The first transverse plate 111, the second transverse plate 121 and the third transverse plate 131 are equivalent to the three connection ends of the corresponding conductive row, so that the three terminals of the power module 5 can be respectively connected to the three connection ends of the three-phase conductive row 1. The first transverse plate 111, the second transverse plate 121 and the third transverse plate 131 can be located in the same plane and separated by the plastic material of the mounting bracket 2, or they can be located in different planes in the same direction of the mounting bracket 2 and distributed separately.

[0042] Specifically, the first transverse plate 111, the first main body plate 113 and the first longitudinal plate 112 of the first conductive row 11 can be integrally formed, and the first transverse plate 111 and the first longitudinal plate 112 can be bent relative to each other. Of course, the first transverse plate 111 and the first longitudinal plate 112 can be respectively connected to the two ends of the first main body plate 113. In either case, as long as the first conductive row 11 can be connected to the U-phase terminal of the power module 5 and the U-phase terminal of the motor stator 6, the second conductive row 12 and the third conductive row 13 can also be integrally formed respectively. Of course, the second transverse plate 121 and the second longitudinal plate 122 of the second conductive row 12 can be respectively connected to the two ends of the second main body plate 123, and the second conductive row 12 can be connected to the V-phase terminal of the power module 5 and the V-phase terminal of the motor stator 6. The third transverse plate 131 and the third longitudinal plate 132 of the third conductive row 13 are connected to the two ends of the third main body plate 133, and the third conductive row 13 can be connected to the W-phase terminal of the power module 5 and the W-phase terminal of the motor stator 6.

[0043] In addition, similarly, the three connecting ends of the first longitudinal plate 112, the second longitudinal plate 122 and the third longitudinal plate 132 are also spaced apart, which can facilitate the connection between the U, V, and W three-phase ends of the motor stator 6. While being spaced apart, the U, V, and W three-phase ends of the motor stator 6 are separated by the mounting bracket 2, which also reduces the risk of creepage when the U, V, and W three-phase ends are subjected to vibration.

[0044] In some embodiments, the first longitudinal plate 112, the second longitudinal plate 122 and the third longitudinal plate 132 are respectively provided with a first connection part 1121, a second connection part 1223 and a third connection part 1321, and in the projection of the first connection part 1121, the second connection part 1223 and the third connection part 1321 along the first direction, the second connection part 1223 is located between the first connection part 1121 and the third connection part 1321.

[0045] In practice, the first connection part 1121, the second connection part 1223 and the third connection part 1321 are all constructed as connection holes, and the stator three-phase terminal 7 of the motor stator 6 is respectively connected to the connection holes of the first longitudinal plate 112, the second longitudinal plate 122 and the third longitudinal plate 132 of the three-phase conductive bar 1, and in the projection of the first connection part 1121, the second connection part 1223 and the third connection part 1321 along the first direction, the second connection part 1223 is located between the first connection part 1121 and the third connection part 1321, that is, the positions of the connection holes are staggered, which facilitates the connection of the stator three-phase terminal 7 of the motor stator 6 with the three-phase conductive bar 1 respectively, and also prevents the first connection part 1121, the second connection part 1223 and the third connection part 1321 from affecting each other, and can better cooperate with the one-to-one corresponding connection between the stator three-phase terminal 7 of the motor stator 6 and the first longitudinal plate 112, the second longitudinal plate 122 and the third longitudinal plate 132 of the three-phase conductive bar 1.

[0046] In some embodiments, the first longitudinal plate 112 is bent along the second direction of the first main body plate 113, and the second longitudinal plate 122 includes a first bending section 1221 and a second bending section 1222. The first bending section 1221 is bent along the second direction of the second main body plate 123 and overlaps with the first longitudinal plate 112, and the second bending section 1222 is bent along the side of the first bending section 1221 away from the second direction. The second connecting portion 1223 is located at the second bending section 1222, and the first connecting portion 1121 is located at the bottom of the first longitudinal plate 112.

[0047] The second direction is Figure 3 The first conductive row 11, the second conductive row 12 and the third conductive row 13 are on the left side, that is, the first transverse plate 111 is bent along the first body plate 113, wherein the first transverse plate 111 and the first body plate 113 can be perpendicular to each other. Figure 2 and Figure 3 The first longitudinal plate 112 is perpendicular to the first main body plate 113 and extends in the transverse direction. The first longitudinal plate 112 is bent along the second direction of the first main body plate 113 and is perpendicular to the first longitudinal plate 112. Figure 2 and Figure 3 It is perpendicular to the first body plate 113 and extends in the longitudinal direction, so that the entire three-phase conductive bar 1 and its horizontal and vertical plates are arranged more regularly, which is convenient for connection and can also save space. Of course, the angles between the first horizontal plate 111 and the first body plate 113, and between the first body plate 113 and the first vertical plate 112 are not limited to vertical, and can be adaptively adjusted according to actual conditions.

[0048] Specifically, the first bending section 1221 of the second longitudinal plate 122 is bent along the second direction of the second body plate 123, and the first bending section 1221 can overlap with a portion of the first longitudinal plate 112. At the same time, the second bending section 1222 is also bent along the first bending section 1221 in a direction away from the second direction, and the angle between the first bending section 1221 and the second bending section 1222 can be a right angle. At the same time, the second bending section 1222 is provided with a second connecting portion 1223, and the lower portion of the first longitudinal plate 112 is provided with a first connecting portion 1121, so that the first longitudinal plate 112 The connection part 1121 and the second connection part 1223 of the second longitudinal plate 122 are staggered to prevent the first connection part 1121 and the second connection part 1223 from influencing each other when connected to the corresponding stator three-phase terminal 7 of the motor stator 6. At the same time, when the first longitudinal plate 112 and the second longitudinal plate 122 are designed to be stacked, there is a surface difference between the first connection part 1121 of the first longitudinal plate 112 and the second connection part 1223 of the second longitudinal plate 122, which can also reduce the creepage distance between the first connection part 1121 of the first longitudinal plate 112 and the second connection part 1223 of the second longitudinal plate 122.

[0049] In some embodiments, the third longitudinal plate 132 is bent along a side of the third body plate 133 away from the second direction, and the third longitudinal plate 132 and the second longitudinal plate 122 are located in different planes.

[0050] In practice, when the third longitudinal plate 132 is bent along the side of the third main body plate 133 away from the second direction, the third longitudinal plate 132 can be staggered with the first longitudinal plate 112, and the third longitudinal plate 132 and the first longitudinal plate 112 can be located in different planes or on the same plane, but the distance between the first longitudinal plate 112 and the third longitudinal plate 132 is farther, thereby, the safety is higher, and when the third longitudinal plate 132 and the first longitudinal plate 112 are located in the same plane, the third longitudinal plate 132 is also located in a different plane from the second longitudinal plate 122, at this time, the third connecting portion 1321 of the third longitudinal plate 132 and the second connecting portion 1223 of the second longitudinal plate 122 are also located in different planes, and at the same time, the second connecting portion 1223 of the second longitudinal plate 122 and the first connecting portion 1121 of the first longitudinal plate 112 are also located on different planes, which maximizes the guarantee that when the drive motor works under harsh working conditions, the electrical clearance between the three-phase terminals can always meet the electrical safety distance, and can reduce the risk of creepage short circuit between the three ends when the three-phase conductive bar 1 is vibrated.

[0051] In some embodiments, the mounting bracket 2 includes a transverse sub-frame 21 and a longitudinal sub-frame 22 distributed in an L-shape, the first transverse plate 111, the second transverse plate 121 and the third transverse plate 131 are located on the upper surface of the transverse sub-frame 21, and the first longitudinal plate 112, the second longitudinal plate 122 and the third longitudinal plate 132 are located on the side of the longitudinal sub-frame 22 away from the transverse sub-frame 21.

[0052] Specifically, the horizontal subframe 21 is provided with three connecting grooves corresponding to the positions connecting the first horizontal plate 111, the second horizontal plate 121 and the third horizontal plate 131, and each connecting groove corresponds to the positions of the first horizontal plate 111, the second horizontal plate 121 and the third horizontal plate 131. The plastic material of the mounting bracket 2 can separate the first horizontal plate 111, the second horizontal plate 121 and the third horizontal plate 131, so that the first horizontal plate 111, the second horizontal plate 121 and the third horizontal plate 131 can be better insulated, and the first horizontal plate 111, the second horizontal plate 121 and the third horizontal plate 131 are each separately connected to the power module 5, and the first horizontal plate 111 transmits the electrical signal along with the first body plate 113 is transmitted to the first longitudinal plate 112, and is transmitted to the U-phase connection end of the motor stator 6. The second transverse plate 121 transmits the electrical signal to the second longitudinal plate 122 along with the second main plate 123, and is transmitted to the V-phase connection end of the motor stator 6. The third transverse plate 131 transmits the electrical signal to the third longitudinal plate 132 along with the third main plate 133, and is transmitted to the W-phase connection end of the motor stator 6. At the same time, the longitudinal sub-frame 22 includes a first area 221, a second area 222 and a third area 223. The first longitudinal plate 112 is correspondingly located in the first area 221, the second longitudinal plate 122 is located in the second area 222, and the third longitudinal plate 132 is located in the third area 223.

[0053] By setting the mounting bracket 2 as a horizontal sub-frame 21 and a longitudinal sub-frame 22, the power module 5 and the motor stator 6 can be conveniently connected in different directions. At the same time, space is saved, and the first longitudinal plate 112, the second longitudinal plate 122 and the third longitudinal plate 132 can be more conveniently and reasonably designed on different surfaces to reduce creepage problems.

[0054] Furthermore, the mounting bracket 2 is provided with a partition 3 at the longitudinal sub-frame 22, and the partition 3 is also a part of the partition layer mentioned above, referring to Figure 1 and Figure 2 As shown, the partition 3 includes a first partition 31 and a second partition 32, wherein the first partition 31 is along Figure 1The first partition 31 separates the first connection part 1121 from the second connection part 1223. At the same time, the second partition 32 includes a longitudinal section and a transverse section. The transverse section of the second partition 32 is in the same direction as the first transverse plate 111, the second transverse plate 121 and the third transverse plate 131. The longitudinal section of the second partition 32 separates the upper part of the second longitudinal plate 122 from the third longitudinal plate 132, and the transverse section of the second partition 32 separates the lower part of the second longitudinal plate 122 from the third longitudinal plate 132, that is, the second partition 32 separates the second connection part 1223 from the third connection part 1321. The setting of the first partition 31 and the second partition 32 makes the separation effect of the first connection part 1121, the second connection part 1223 and the third connection part 1321 better, the insulation effect is better, and the risk of creepage and short circuit is further reduced.

[0055] In some embodiments, the extension lengths of the first body plate 113 , the second body plate 123 , and the third body plate 133 along the first direction increase sequentially, and the extension lengths of the first longitudinal plate 112 , the second longitudinal plate 122 , and the third longitudinal plate 132 along the third direction decrease sequentially.

[0056] That is to say, the first body plate 113, the second body plate 123 and the third body plate 133 have different lengths, and the first body plate 113, the second body plate 123 and the third body plate 133 are all integrated in the shell 23 of the mounting bracket 2, so that the first transverse plate 111 connected to the first body plate 113, the second transverse plate 121 connected to the second body plate 123 and the third transverse plate 131 connected to the third body plate 133 can be staggered in the transverse direction of the mounting bracket 2, and at the same time, the first longitudinal plate 112 bent and extended along the first body plate 113, the second longitudinal plate 122 bent and extended from the second body plate 123 and the third longitudinal plate 132 bent and extended from the third body plate 133 are shortened in the longitudinal direction of the mounting bracket 2 successively, that is, the first longitudinal plate 112 is gradually shortened. The extension length along the longitudinal direction of the mounting bracket 2 is the longest, and the first connecting part 1121 is arranged at the lower part of the first longitudinal plate 112. The extension length of the second longitudinal plate 122 along the longitudinal direction of the mounting bracket 2 is shorter, so that the second connecting part 1223 of the second longitudinal plate 122 can be staggered with the first connecting part 1121 of the first longitudinal plate 112. At the same time, the length of the third longitudinal plate 132 along the longitudinal direction of the mounting bracket 2 is the shortest, and the first connecting part 1121, the second connecting part 1223 and the third connecting part 1321 can be staggered in the longitudinal direction, so that the first connecting part 1121, the second connecting part 1223 and the third connecting part 1321 are respectively connected one by one with the stator first terminal 701, the stator second terminal 702 and the stator third terminal 703 of the motor stator 6.

[0057] In some embodiments, the shielding ring 4 is sleeved on the three-phase conductive bar 1 and is closely attached to one side of the first longitudinal plate 112 , the second longitudinal plate 122 and the third longitudinal plate 132 .

[0058] In practice, when the first body plate 113, the second body plate 123 and the third body plate 133 of the three-phase conductive bar 1 extend in the transverse direction, and the first transverse plate 111, the second transverse plate 121 and the third transverse plate 131 are used to connect the power module 5, when the shielding ring 4 is sleeved on one end of the first body plate 113, the second body plate 123 and the third body plate 133 close to the first longitudinal plate 112, the second longitudinal plate 122 and the third longitudinal plate 132, at this time, the shielding ring 4 is actually located between the first transverse plate 111 and the first longitudinal plate 112, and according to the length of the second transverse plate 121 extending along the second body plate 123, it can be known that the shielding ring 4 is actually also located between the second transverse plate 121 and the second longitudinal plate 122, and also between the third transverse plate 131 and the third longitudinal plate 132, so that the power module 5 can reach the U phase, V phase and W phase of the motor stator 6 through the U phase, V phase and W phase of the three-phase conductive bar 1 to reduce high-frequency electromagnetic interference.

[0059] In some embodiments, the mounting bracket 2 is embedded with a nut 24 , and the nut 24 is away from the position of the three-phase conductive bar 1 .

[0060] In practice, the nut 24 can be set between the adjacent first transverse plates 111 on the mounting bracket 2, and can also be set at the position of the transverse frame 21 between the first transverse plate 111 and the longitudinal frame 22. The position of the transverse frame 21 between the first transverse plate 111 and the longitudinal frame 22 can be used to connect the current sensor, and the current sensor is connected to the mounting bracket 2 by bolts passing through the nut 24. At the same time, other positions of the power module 5 can also be connected to the mounting bracket 2 by bolts passing through the nut 24. The mounting bracket 2 is made of plastic material and it is impossible to directly punch holes to tighten the bolts. Therefore, the nut 24 is embedded in the mounting bracket 2, and the nut 24 can be fixedly connected to the mounting bracket 2, which is convenient for connecting the power module 5 and the current sensor to the mounting bracket 2 through bolts and nuts 24.

[0061] The utility model embodiment also discloses a vehicle, including a power module 5, a motor stator 6 and the above-mentioned three-phase connector 100, the motor stator 6 is provided with a stator three-phase terminal 7, and the power module 5 is connected to the stator three-phase terminal 7 of the motor stator 6 through the three-phase connector 100.

[0062] In practice, an injection molding integrated design is adopted, and the U-phase copper bar, the V-phase copper bar, and the W-phase copper bar are covered inside by the plastic mounting bracket 2, leaving a stator three-phase terminal 7 interface for connecting the power module 5 and the motor stator 6, and the three-phase end interface is the first horizontal plate 111, the second horizontal plate 121 and the third horizontal plate 131 and the first vertical plate 112, the second vertical plate 122 and the third vertical plate 132 mentioned above, which ensures the sealing of the entire three-phase connector 100, and the mounting bracket 2 and the three-phase copper bar are effectively and reliably fixed together through the integrated molding process, ensuring The vibration offset of the copper busbar is within an acceptable range, and the efficiency, quality and reliability are high. The shielding ring 4 is set on the three-phase copper busbar to better shield the high-frequency electromagnetic interference. The three-phase end interfaces of the three-phase copper busbar are designed on different horizontal planes. The one-piece injection molding solution is used to ensure that the creepage distance and electrical clearance distance between the copper busbars remain unchanged to the greatest extent, and effectively avoid the risk of short circuit of the three-phase copper busbar due to mechanical vibration impact. The one-piece injection molding design can not only improve production efficiency, but also ensure product quality and consistency, and increase the service life of motor bearings and the safety of the motor.

[0063] 1. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0064] 2. In the description of the present utility model, "first feature" and "second feature" may include one or more of these features.

[0065] 3. In the description of this utility model, "plurality" means two or more.

[0066] 4. In the description of the present invention, a first feature “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other through another feature therebetween.

[0067] 5. In the description of the present utility model, the first feature “above”, “above” and “on” the second feature includes the first feature being directly above and diagonally above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0069] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A three-phase connector, characterized in that: include: Shielding ring; A three-phase conductive bar, the three-phase conductive bar is passed through the shielding ring, and the three-phase conductive bar includes three conductive bars that are spaced apart and distributed; The mounting bracket is injection molded outside the shielding ring and the three-phase conductive bars, and the mounting bracket includes a partition layer located between two adjacent conductive bars.

2. The three-phase connector according to claim 1, characterized in that: The three conductive bars are respectively a first conductive bar, a second conductive bar and a third conductive bar, wherein the first conductive bar comprises a first transverse plate, a first body plate and a first longitudinal plate connected in sequence, the second conductive bar comprises a second transverse plate, a second body plate and a second longitudinal plate connected in sequence, and the third conductive bar comprises a third transverse plate, a third body plate and a third longitudinal plate connected in sequence; Among them, the first main body plate, the second main body plate and the third main body plate all extend along the first direction and are spaced apart in the second direction, the first transverse plate, the second transverse plate and the third transverse plate all extend along the second direction and are spaced apart in the first direction, and the first longitudinal plate, the second longitudinal plate and the third longitudinal plate all extend along the third direction and are spaced apart.

3. The three-phase connector according to claim 2, characterized in that: The first longitudinal plate, the second longitudinal plate and the third longitudinal plate are respectively provided with a first connecting portion, a second connecting portion and a third connecting portion. In the projection of the first connecting portion, the second connecting portion and the third connecting portion along the first direction, the second connecting portion is located between the first connecting portion and the third connecting portion.

4. The three-phase connector according to claim 3, characterized in that: The first longitudinal plate is bent along the second direction of the first main body plate, and the second longitudinal plate includes a first bending section and a second bending section. The first bending section is bent along the second direction of the second main body plate and overlaps with the first longitudinal plate, and the second bending section is bent along the side of the first bending section away from the second direction. The second connecting portion is located in the second bending section, and the first connecting portion is located at the bottom of the first longitudinal plate.

5. The three-phase connector according to claim 4, characterized in that: The third longitudinal plate is bent along a side of the third main body plate away from the second direction, and the third longitudinal plate and the second longitudinal plate are located in different planes.

6. The three-phase connector according to claim 2, characterized in that: The mounting bracket includes a transverse sub-frame and a longitudinal sub-frame distributed in an L shape, the first transverse plate, the second transverse plate and the third transverse plate are located on the upper surface of the transverse sub-frame, and the first longitudinal plate, the second longitudinal plate and the third longitudinal plate are located on a side of the longitudinal sub-frame away from the transverse sub-frame.

7. The three-phase connector according to claim 2, characterized in that: The extension lengths of the first body plate, the second body plate and the third body plate along the first direction are successively increased, and the extension lengths of the first longitudinal plate, the second longitudinal plate and the third longitudinal plate along the third direction are successively shortened.

8. The three-phase connector according to claim 2, characterized in that: The shielding ring is sleeved on the three-phase conductive bar and is closely attached to one side of the first longitudinal plate, the second longitudinal plate and the third longitudinal plate.

9. The three-phase connector according to claim 1, characterized in that: The mounting bracket is embedded with a nut, and the nut avoids the position of the three-phase conductive bar.

10. A vehicle, characterized in that: It comprises a power module, a motor stator and the three-phase connector according to any one of claims 1 to 9, wherein the motor stator is provided with stator three-phase terminals, and the power module is connected to the stator three-phase terminals of the motor stator through the three-phase connector.

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