Copper bar arrangement structure

Abstract

The utility model provides a copper bar arrangement structure, which comprises a direct current copper bar, the direct current copper bar comprises a direct current positive electrode copper bar and a direct current negative electrode copper bar, and the direct current copper bar is provided with a battery direct current wire harness connecting piece, a DCDC connecting piece, a filter plate connecting piece and a thin film capacitor connecting piece along the length direction; the direct-current anode copper bar, the direct-current cathode copper bar and the alternating-current copper bars are arranged side by side at intervals, and a motor alternating-current output wire harness connecting piece, a current sensor connecting piece and an IGBT connecting piece are arranged on each alternating-current copper bar in the length direction. According to the copper bar arrangement structure, the direct-current positive and negative copper bars can be connected with a DCDC, a filter plate and a thin-film capacitor, so that direct-current voltage conversion, harmonic component filtering and high-frequency noise absorption are realized, the quality and stability of output voltage are improved, the influence on a system or equipment is reduced, the temperature rise of the copper bar is prevented from being too high, and one copper bar can be universally used at multiple positions; and different current sensors are installed.

Description

Technical Field

[0001] The utility model relates to the technical field of controller copper bars, in particular to a copper bar arrangement structure. Background Art

[0002] Copper busbars are also called copper busbars. They are an indispensable conductive material for manufacturing controllers. They have good mechanical properties and good conductivity. They also have good electroplating properties, corrosion resistance, and good processing properties. Copper busbars are widely used in the electrical and power transmission and transformation fields. In recent years, with the rapid development of domestic new energy sources, the domestic demand for copper busbars is also increasing, and the quality requirements for copper busbars are also increasing, especially in the field of controllers. The controller must meet the requirements of small size, light weight, and low cost while ensuring the service life of the controller. The traditional copper busbar structure is complex and occupies a large space. A good, simple, and high-quality copper busbar structure is particularly critical.

[0003] The existing copper busbar avoids the problem of unbalanced three-phase current of the motor by setting a current sensor on the output end to collect and compensate the current on the output end through the current sensor. However, the copper busbar can only adapt to one current sensor and cannot be compatible with multiple current sensors according to usage needs, which leads to poor versatility of the copper busbar and is not conducive to processing and manufacturing.

[0004] In summary, there is an urgent need for a copper busbar arrangement structure that is compatible with multiple types of current sensors and has good versatility. Utility Model Content

[0005] In order to solve the problem that the above-mentioned prior art cannot be used for current sensors of different models and has poor versatility, the utility model provides a copper busbar arrangement structure.

[0006] According to one purpose of the utility model, the utility model provides a copper busbar arrangement structure, comprising:

[0007] A DC copper busbar, wherein the DC copper busbar comprises a DC positive copper busbar and a DC negative copper busbar, and a battery DC wiring harness connector, a DCDC connector, a filter board connector, and a film capacitor connector are arranged along the length direction of the DC copper busbar;

[0008] A plurality of AC copper bars, wherein the DC positive copper bar, the DC negative copper bar and the AC copper bar are arranged side by side and spaced apart, and each of the AC copper bars is provided with a motor AC output harness connector, a current sensor connector and an IGBT connector along the length direction;

[0009] The current sensor connector is configured to be compatible with the installation of one type of current sensor, and the outer wall of the AC copper busbar is configured to be compatible with the installation of another type of current sensor.

[0010] Preferably, the DC copper busbar includes a DC wiring portion, a connecting portion and a capacitor portion which are connected in sequence along the length direction, the battery DC wiring harness connector is located on the DC wiring portion, the DCDC connector and the filter board connector are located on the connecting portion, the thin film capacitor connector is located on the capacitor portion, the connecting portion and the capacitor portion are flush with each other, and there is a bend between the DC wiring portion and the connecting portion, and the bending angle between the DC wiring portion and the connecting portion is 90°.

[0011] Preferably, the battery DC wiring harness connector includes a first battery DC wiring harness connector and a second battery DC wiring harness connector, the first battery DC wiring harness connector and the second battery DC wiring harness connector are arranged along the length direction of the DC copper busbar, the number of the film capacitor connectors is two, and the two film capacitor connectors are arranged along the width direction of the DC copper busbar;

[0012] The DCDC connector includes a DCDC positive connector and a DCDC negative connector, the filter board connector includes a filter board positive connector and a filter board negative connector, the DC positive copper busbar is provided with a battery DC harness connector, a DCDC positive connector, a filter board positive connector and a thin film capacitor connector in sequence along the length direction, and the DC negative copper busbar is provided with a battery DC harness connector, a DCDC negative connector, a filter board negative connector and a thin film capacitor connector in sequence along the length direction, wherein the DCDC positive connector and the DCDC negative connector, the filter board positive connector and the filter board negative connector are staggered in the length direction of the DC copper busbar.

[0013] Preferably, the battery DC wiring harness connector and the film capacitor connector are both hole-shaped structures, the DCDC connector and the filter board connector are both M4 nuts riveted on the DC copper busbar, the diameter of the film capacitor connector is 5.5 mm, the diameter of the first battery DC wiring harness connector is 5.5 mm, the diameter of the second battery DC wiring harness connector is 9 mm, the minimum spacing between the DC positive copper busbar and the DC negative copper busbar is 7 mm, and the cross-sectional area of ​​the DC positive copper busbar and the DC negative copper busbar is 80 mm 2 .

[0014] Preferably, the copper busbar arrangement structure further includes:

[0015] A DCDC positive copper bar and a DCDC negative copper bar, wherein the DCDC positive copper bar is connected to the DCDC positive connector, and the DCDC negative copper bar is connected to the DCDC negative connector;

[0016] A filter board positive copper bar and a filter board negative copper bar, wherein the filter board positive copper bar is connected to the filter board positive electrode connector, and the filter board negative copper bar is connected to the filter board negative electrode connector;

[0017] The DCDC positive copper bar, the DCDC negative copper bar, the filter board positive copper bar and the filter board negative copper bar are all bent twice, and the cross-sectional area of ​​the DCDC positive copper bar, the DCDC negative copper bar, the filter board positive copper bar and the filter board negative copper bar is 10mm 2 .

[0018] Preferably, a connecting hole is respectively provided at both ends of the length direction of the DCDC positive copper bar, the DCDC negative copper bar, the filter board positive copper bar and the filter board negative copper bar, one of the connecting holes in the length direction of the DCDC positive copper bar corresponds to the DCDC positive connector, one of the connecting holes in the length direction of the DCDC negative copper bar corresponds to the DCDC negative connector, one of the connecting holes in the length direction of the filter board positive copper bar corresponds to the filter board positive connector, one of the connecting holes in the length direction of the filter board negative copper bar corresponds to the filter board negative connector, the connecting holes are stamped connecting holes, and the diameter of the connecting holes is 4.5 mm.

[0019] Preferably, the AC copper busbar includes an AC wiring part, a first middle part, a second middle part and an IGBT connecting part which are arranged in sequence along the length direction; the motor AC output harness connector, the current sensor connector and the terminal block positioning part are arranged on the AC wiring part; the IGBT connector is arranged on the IGBT connecting part; the AC wiring part and the first middle part are bent; the first middle part and the second middle part are bent; and the second middle part and the IGBT connecting part are bent.

[0020] Preferably, the number of the AC copper bars is six, and the cross-sectional area of ​​each AC copper bar is 80 mm 2 The IGBT connector is a hole-shaped structure, the cross-sectional shape of the IGBT connector is oval-shaped, and the long axis direction of the IGBT connector is the same as the length direction of the IGBT connecting portion.

[0021] Preferably, the copper busbar arrangement structure also includes a terminal block positioning piece, which is arranged on the AC wiring part, and the terminal block positioning piece, the IGBT connector, the motor AC output harness connector and the current sensor connector are all hole-shaped structures, the size of the IGBT connector is 6.4mmx3mm, the diameter of the motor AC output harness connector is 9mm, the diameter of the current sensor connector is 4.3mm, and the diameter of the terminal block positioning piece is 4.5mm.

[0022] Preferably, the copper busbar is made of T2 copper plate, which is formed by laser cutting, burr removal, punching, and bending, and the surface of the copper busbar is tinned.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] 1. The copper busbar can be compatible with the installation of different types of current sensors, so that one copper busbar can be used in multiple places;

[0025] 2. As the wiring harness is difficult to route and bind, copper bars are used to solve the problem of replacing the DCDC input wiring harness, which is convenient for processing and manufacturing, saves costs, and limits the cross-sectional area of ​​the DC positive and negative copper bars, AC copper bars, DCDC positive and negative copper bars, and filter board positive and negative copper bars. A smaller number of bends are set on the DC positive and negative copper bars, AC copper bars, DCDC positive and negative copper bars, and filter board positive and negative copper bars to ensure that the copper bars will not be damaged by overheating due to the temperature exceeding 70°C during the operation of the controller;

[0026] 3. The DC positive and negative copper bars can be connected to DCDC, filter board and film capacitor to realize DC voltage conversion, filter harmonic components, absorb high-frequency noise, improve the quality and stability of output voltage, and reduce the impact on the system or equipment;

[0027] 4. A current sensor connector that can be connected to a current sensor is provided on each AC copper busbar. The current on each AC copper busbar is collected separately by the current sensor, and then compensation is made, which can solve the problem of unbalanced three-phase current of the motor.

[0028] The present invention is further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of one viewing angle of the copper busbar arrangement structure of the utility model;

[0030] Figure 2 This is a schematic diagram of another viewing angle of the copper busbar arrangement structure of the utility model.

[0031] In the figure: 100, DC copper busbar; 101, DC positive copper busbar; 102, DC negative copper busbar; 103, battery DC wiring harness connector; 104, DCDC connector; 1041, DCDC positive connector; 1042, DCDC negative connector; 105, filter board connector; 1051, filter board positive connector; 1052, filter board negative connector; 106, film capacitor connector; 107, DC wiring part; 108, connector; 1 09, capacitor part; 200, AC copper busbar; 201, motor AC output harness connector; 202, current sensor connector; 203, IGBT connector; 204, terminal block positioning member; 205, AC wiring part; 206, first middle part; 207, second middle part; 208, IGBT connection part; 300, DCDC positive copper busbar; 400, DCDC negative copper busbar; 500, filter board positive copper busbar; 600, filter board negative copper busbar. DETAILED DESCRIPTION

[0032] The following description is used to fully explain the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0033] See also Figure 1-2 , a copper busbar arrangement structure, comprising:

[0034] A DC copper busbar 100, wherein the DC copper busbar 100 comprises a DC positive copper busbar 101 and a DC negative copper busbar 102, and a battery DC wiring harness connector 103, a DCDC connector 104, a filter board connector 105 and a film capacitor connector 106 are arranged along the length direction of the DC copper busbar 100;

[0035] A plurality of AC copper bars 200, the DC positive copper bar 101, the DC negative copper bar 102 and the AC copper bar 200 are arranged side by side and spaced apart, and each of the AC copper bars 200 is provided with a motor AC output harness connector 201, a current sensor connector 202 and an IGBT connector 203 along the length direction.

[0036] The copper busbar arrangement structure realizes the common use of the DC copper busbar 100 in multiple places by arranging a DCDC connector 104, a filter board connector 105 and a film capacitor connector 106 on the DC copper busbar 100, and by arranging a current sensor connector 202 on each AC copper busbar 200 for installing a current sensor, each AC copper busbar 200 can collect current separately through the current sensor to make compensation, thereby avoiding the problem of unbalanced three-phase current of the motor.

[0037] Specifically, the DC copper bus 100 includes a DC wiring portion 107, a connecting portion 108 and a capacitor portion 109 which are connected in sequence along the length direction, the battery DC wiring harness connector 103 is located on the DC wiring portion 107, the DCDC connector 104 and the filter board connector 105 are located on the connecting portion 108, and the thin film capacitor connector 106 is located on the capacitor portion 109.

[0038] Furthermore, the connecting portion 108 is flush with the capacitor portion 109, and a bend is provided between the DC wiring portion 107 and the connecting portion 108. Preferably, the DC wiring portion 107 is bent toward one side in the thickness direction of the connecting portion 108, and the bending angle between the DC wiring portion 107 and the connecting portion 108 is 90°. The processing of the DC positive copper busbar 101 and the DC negative copper busbar 102 is relatively simple, and the entire copper busbar is bent only once.

[0039] In order to avoid the DC copper bar 100 being too stable, further, the cross-sectional area of ​​the DC positive copper bar 101 and the DC negative copper bar 102 are both 80mm 2 , where the cross-sectional area of ​​the DC copper busbar 100 is 80mm 2 It is designed based on the rated power and peak power current carrying capacity of the controller to ensure that the temperature of the entire copper busbar does not exceed 70°C during the operation of the controller.

[0040] Furthermore, the minimum spacing between the DC positive copper busbar 101 and the DC negative copper busbar 102 is 7 mm, which satisfies the creepage distance between the copper buses of the low-voltage controller and ensures that creepage short circuit does not occur.

[0041] Preferably, the battery DC harness connector 103 and the film capacitor connector 106 are both hole-shaped structures, and the DCDC connector 104 and the filter board connector 105 are both nuts riveted onto the DC copper bus 100 .

[0042] Specifically, the DCDC connector 104 and the filter board connector 105 are M4 nuts, and the diameter of the film capacitor connector 106 is 5.5 mm.

[0043] Regarding the specific structure of the DC copper busbar 100, the two sides of the DC copper busbar 100 in the width direction are respectively the first side and the second side, the second side of the DC positive copper busbar 101 and the first side of the DC negative copper busbar 102 are arranged opposite to each other, the connecting portion 108 of the DC positive copper busbar 101 to the capacitor portion 109 is gradually inclined toward the second side, the connecting portion 108 of the DC positive copper busbar 101 to the capacitor portion 109 is gradually inclined toward the second side, and the capacitor portion 109 extends outward toward the second side.

[0044] More specifically, the DCDC connector 104 includes a DCDC positive connector 1041 and a DCDC negative connector 1042, the filter board connector 105 includes a filter board positive connector 1051 and a filter board negative connector 1052, the DC positive copper bus 101 is sequentially provided with a battery DC harness connector 103, a DCDC positive connector 1041, a filter board positive connector 1051 and a film capacitor connector 106 along the length direction, and the DC negative copper bus 102 is sequentially provided with a battery DC harness connector 103, a DCDC negative connector 1042, a filter board negative connector 1052 and a film capacitor connector 106 along the length direction;

[0045] The battery DC wiring harness connector 103 includes a first battery DC wiring harness connector 103 and a second battery DC wiring harness connector 103, the first battery DC wiring harness connector 103 and the second battery DC wiring harness connector 103 are arranged along the length direction of the DC copper bus 100, the number of the thin film capacitor connectors 106 is two, and the two thin film capacitor connectors 106 are arranged along the width direction of the DC copper bus 100.

[0046] Preferably, the diameter of the first battery DC harness connector 103 is 5.5 mm, and the diameter of the second battery DC harness connector 103 is 9 mm, which are used for installation and fixation of an external battery DC harness.

[0047] The DCDC positive connector 1041 and the DCDC negative connector 1042, the filter board positive connector 1051 and the filter board negative connector 1052 are staggered in the length direction of the DC copper bus 100. The design is mainly to enhance the electromagnetic compatibility of the circuit. Electromagnetic compatibility refers to the ability of a device to work normally in an electromagnetic environment. When the device is subject to external electromagnetic interference, its performance should not be reduced, nor should it become a source of external electromagnetic interference. In the controller, the voltage fluctuations and current changes generated by the DCDC converter may generate electromagnetic radiation and interfere with surrounding electronic equipment. By staggering the connection positions of the DCDC positive and negative electrodes on the DC positive copper bus 101 and the DC negative copper bus 102, the distance between the two can be increased, thereby reducing the electromagnetic coupling between them. That is, this design can reduce the impact of the electromagnetic interference generated by the DCDC converter on surrounding equipment and improve the electromagnetic compatibility of the entire control system.

[0048] The copper busbar arrangement structure also includes:

[0049] A DCDC positive copper bar 300 and a DCDC negative copper bar 400, wherein the DCDC positive copper bar 300 is connected to the DCDC positive connector 1041, and the DCDC negative copper bar 400 is connected to the DCDC negative connector 1042;

[0050] The filter board positive copper bar 500 and the filter board negative copper bar 600 are connected to the filter board positive connector 1051 , and the filter board negative copper bar 600 is connected to the filter board negative connector 1052 .

[0051] Specifically, the DCDC positive copper bar 300, the DCDC negative copper bar 400, the filter board positive copper bar 500 and the filter board negative copper bar 600 are respectively provided with a connection hole at both ends in the length direction, one of the connection holes in the length direction of the DCDC positive copper bar 300 corresponds to the DCDC positive connector 1041, one of the connection holes in the length direction of the DCDC negative copper bar 400 corresponds to the DCDC negative connector 1042, and the filter board positive copper bar 500 is provided with a connection hole in the length direction. One of the connection holes on the filter plate corresponds to the positive electrode connector 1051 of the filter plate, and one of the connection holes in the length direction of the negative electrode copper bar 600 of the filter plate corresponds to the negative electrode connector 1052 of the filter plate. Preferably, the diameter of the connection hole is 4.5 mm, and the connection hole is stamped. The entire processing and manufacturing process is simple, and the copper bar can meet the maximum current carrying capacity. Preferably, the cross-sectional area of ​​the DCDC positive copper bar 300, the DCDC negative copper bar 400, the filter plate positive copper bar 500 and the filter plate negative copper bar 600 is 10 mm 2The DCDC positive copper bar 300, the DCDC negative copper bar 400, the filter board positive copper bar 500 and the filter board negative copper bar 600 are all relatively thin and light, easy to install, and compared with the traditional wiring harness, the DCDC positive copper bar 300, the DCDC negative copper bar 400, the filter board positive copper bar 500 and the filter board negative copper bar 600 have beautiful routing, do not need to be tied, and the cost is lower than the traditional wiring harness.

[0052] The DCDC positive copper bar 300, the DCDC negative copper bar 400, the filter plate positive copper bar 500 and the filter plate negative copper bar 600 are formed by continuous bending, and preferably, the number of bending times is twice.

[0053] Specifically, the DCDC positive copper bar 300 and the filter board positive copper bar 500 are respectively arranged on both sides of the DC positive copper bar 101 in the width direction, and the DCDC negative copper bar 400 and the filter board negative copper bar 600 are respectively arranged on both sides of the DC negative copper bar 102 in the width direction.

[0054] Regarding the structure of the AC copper busbar, preferably, the number of the AC copper busbars 200 is six, wherein the six AC copper busbars 200 are manufactured in a universal manner, and their outer dimensions are the same, and the AC copper busbar 200 is arranged in a rectangular shape, and no special-shaped cutting is required during copper busbar processing, waste is reduced, material utilization is increased, and manufacturing costs can be saved. At the same time, no distinction is required for installation, and installation is convenient;

[0055] Furthermore, the cross-sectional area of ​​each of the AC copper busbars 200 is 80 mm 2 .

[0056] The IGBT connector 203, the motor AC output harness connector 201 and the current sensor connector 202 are all hole-shaped structures. Preferably, the cross-sectional shape of the IGBT connector 203 is waist-shaped, and its size is 6.4mmx3mm. The long axis direction of the IGBT connector 203 is the same as the length direction of the IGBT connecting part 208. The IGBT connector 203 is used for the installation and fixation of the IGBT output end, wherein the waist-shaped IGBT connector 203 can adjust the dimensional error in the long axis direction. The diameter of the motor AC output harness connector 201 is 9mm, which is used for the installation and fixation of the motor AC output harness. The diameter of the current sensor connector 202 is 4.3mm, which is used for the fixation of the current sensor. Each AC copper bus 200 can be equipped with a current sensor in conjunction with the current sensor connector 202. The current sensor can solve the problem of inconsistent three-phase output current caused by three-phase imbalance of the motor. The current of each phase is collected separately, making the motor control more stable.

[0057] When in use, a current sensor can be placed on the AC copper busbar 200. The current sensor connector 202 with a hole structure on the AC copper busbar 200 can also be compatible with another current sensor in conjunction with the copper column. Different current sensors can be placed according to different needs.

[0058] In order to increase the stability between the AC copper busbar 200 and the wiring seat and facilitate the assembly of the AC copper busbar 200 and the wiring seat, further comprising:

[0059] The terminal block positioning member 204 is arranged on the AC wiring portion 205. The terminal block positioning member 204 is a hole-shaped structure. Preferably, the diameter of the terminal block positioning member 204 is 4.5 mm, and is used for pre-fixing the AC copper bus 200 and the terminal block.

[0060] The AC copper busbar 200 is designed to be continuously bent along its length direction. Preferably, the AC copper busbar 200 is bent three times.

[0061] Specifically, the AC copper bus 200 includes an AC wiring portion 205, a first middle portion 206, a second middle portion 207 and an IGBT connection portion 208 which are sequentially arranged along the length direction; the motor AC output harness connector 201, the current sensor connector 202 and the terminal block positioning member 204 are arranged on the AC wiring portion 205; the IGBT connector 203 is arranged on the IGBT connection portion 208; the AC wiring portion 205 and the first middle portion 206 are bent; the first middle portion 206 and the second middle portion 207 are bent; the second middle portion 207 and the IGBT connection portion 208 are bent; wherein the AC wiring portion 205 and the second middle portion 207 are parallel; the first middle portion 206 and the IGBT connection portion 208 are parallel; and the outer wall of the AC wiring portion 205 is arranged to be suitable for the installation of a current sensor sleeve.

[0062] Furthermore, the copper busbar is made of T2 copper plate, which is cut by laser, burrs are removed, holes are punched, and bending is performed in sequence. The surface of the copper busbar is tinned, which can resist corrosion, improve conductivity, and make it look more beautiful.

[0063] In summary, the copper bar arrangement structure limits the cross-sectional area of ​​the DC positive and negative copper bars, the AC copper bar 200, the DCDC positive and negative copper bars, and the filter board positive and negative copper bars, and sets a smaller number of bends on the DC positive and negative copper bars, the AC copper bar 200, the DCDC positive and negative copper bars, and the filter board positive and negative copper bars to ensure that the copper bars will not be damaged by overheating due to the temperature exceeding 70°C during the operation of the controller;

[0064] The DC positive and negative copper bars can be connected to DCDC, filter boards and film capacitors to achieve DC voltage conversion, filter harmonic components, absorb high-frequency noise, improve the quality and stability of the output voltage, reduce the impact on the system or equipment, and achieve a copper bar that can be used in multiple places, which is convenient for processing and manufacturing and saves costs;

[0065] A current sensor connector that can be connected to a current sensor is provided on each AC copper busbar 200. The current on each AC copper busbar 200 is individually collected by the current sensor, and then compensation is made, which can solve the problem of unbalanced three-phase current of the motor.

[0066] The above embodiments are only used to illustrate the technical ideas and features of the utility model, and their purpose is to enable technicians in this field to understand the content of the utility model and implement it accordingly. The patent application scope of the utility model cannot be limited only by this embodiment, that is, any equivalent changes or modifications made according to the spirit disclosed by the utility model still fall within the patent scope of the utility model.

Claims

1. A copper busbar arrangement structure, characterized in that: include: A DC copper busbar (100), the DC copper busbar (100) comprising a DC positive copper busbar (101) and a DC negative copper busbar (102), and the DC copper busbar (100) is provided with a battery DC wiring harness connector (103), a DCDC connector (104), a filter board connector (105), and a film capacitor connector (106) along a length direction; A plurality of AC copper bars (200), wherein the DC positive copper bar (101), the DC negative copper bar (102) and the AC copper bar (200) are arranged side by side and spaced apart, and each of the AC copper bars (200) is provided with a motor AC output harness connector (201), a current sensor connector (202) and an IGBT connector (203) along a length direction; The current sensor connector (202) is configured to be compatible with the installation of a current sensor, and the outer wall of the AC copper busbar (200) is configured to be compatible with the installation of another current sensor.

2. A copper busbar arrangement structure according to claim 1, characterized in that: The DC copper busbar (100) comprises a DC wiring portion (107), a connecting portion (108) and a capacitor portion (109) which are sequentially connected along a length direction; the battery DC wiring harness connector (103) is located on the DC wiring portion (107); the DCDC connector (104) and the filter board connector (105) are located on the connecting portion (108); the film capacitor connector (106) is located on the capacitor portion (109); the connecting portion (108) and the capacitor portion (109) are flush with each other; a bend is provided between the DC wiring portion (107) and the connecting portion (108); and the bend angle between the DC wiring portion (107) and the connecting portion (108) is 90°.

3. A copper busbar arrangement structure according to claim 1, characterized in that: The battery DC wiring harness connector (103) comprises a first battery DC wiring harness connector (103) and a second battery DC wiring harness connector (103), wherein the first battery DC wiring harness connector (103) and the second battery DC wiring harness connector (103) are arranged along the length direction of the DC copper busbar (100), and the number of the thin film capacitor connectors (106) is two, and the two thin film capacitor connectors (106) are arranged along the width direction of the DC copper busbar (100); The DCDC connector (104) comprises a DCDC positive connector (1041) and a DCDC negative connector (1042); the filter board connector (105) comprises a filter board positive connector (1051) and a filter board negative connector (1052); a battery DC harness connector (103), a DCDC positive connector (1041), a filter board positive connector (1051) and a film capacitor connector (106) are sequentially arranged on the DC positive copper busbar (101) along the length direction; The DC negative copper busbar (102) is provided with a battery DC harness connector (103), a DCDC negative connector (1042), a filter board negative connector (1052) and a film capacitor connector (106) in sequence along the length direction, wherein the DCDC positive connector (1041) and the DCDC negative connector (1042), the filter board positive connector (1051) and the filter board negative connector (1052) are staggered in the length direction of the DC copper busbar (100).

4. A copper busbar arrangement structure according to claim 3, characterized in that: The battery DC wiring harness connector (103) and the film capacitor connector (106) are both hole-shaped structures; the DCDC connector (104) and the filter board connector (105) are both M4 nuts riveted onto the DC copper busbar (100); the diameter of the film capacitor connector (106) is 5.5 mm; the diameter of the first battery DC wiring harness connector (103) is 5.5 mm; the diameter of the second battery DC wiring harness connector (103) is 9 mm; the minimum spacing between the DC positive copper busbar (101) and the DC negative copper busbar (102) is 7 mm; and the cross-sectional areas of the DC positive copper busbar (101) and the DC negative copper busbar (102) are both 80 mm. 2 .

5. A copper busbar arrangement structure according to claim 3, characterized in that: Also includes: A DCDC positive copper bar (300) and a DCDC negative copper bar (400), wherein the DCDC positive copper bar (300) is connected to the DCDC positive connector (1041), and the DCDC negative copper bar (400) is connected to the DCDC negative connector (1042); A filter board positive copper bar (500) and a filter board negative copper bar (600), wherein the filter board positive copper bar (500) is connected to the filter board positive electrode connector (1051), and the filter board negative electrode copper bar (600) is connected to the filter board negative electrode connector (1052); The DCDC positive copper bar (300), the DCDC negative copper bar (400), the filter plate positive copper bar (500), and the filter plate negative copper bar (600) are all formed by bending twice, and the cross-sectional area of ​​the DCDC positive copper bar (300), the DCDC negative copper bar (400), the filter plate positive copper bar (500), and the filter plate negative copper bar (600) is 10 mm 2 .

6. A copper busbar arrangement structure according to claim 5, characterized in that: A connection hole is respectively provided at both ends of the DCDC positive copper bar (300), the DCDC negative copper bar (400), the filter board positive copper bar (500) and the filter board negative copper bar (600) in the length direction; one of the connection holes in the length direction of the DCDC positive copper bar (300) corresponds to the DCDC positive connector (1041); one of the connection holes in the length direction of the DCDC negative copper bar (400) corresponds to the DCDC negative connector (1042); one of the connection holes in the length direction of the filter board positive copper bar (500) corresponds to the filter board positive connector (1051); one of the connection holes in the length direction of the filter board negative copper bar (600) corresponds to the filter board negative connector (1052); the connection holes are stamped connection holes, and the diameter of the connection holes is 4.5 mm.

7. A copper busbar arrangement structure according to claim 1, characterized in that: The AC copper busbar (200) comprises an AC wiring portion (205), a first middle portion (206), a second middle portion (207) and an IGBT connection portion (208) which are sequentially arranged along the length direction; the motor AC output harness connector (201), the current sensor connector (202) and the wiring seat positioning member (204) are arranged on the AC wiring portion (205); the IGBT connector (203) is arranged on the IGBT connection portion (208); the AC wiring portion (205) and the first middle portion (206) are bent; the first middle portion (206) and the second middle portion (207) are bent; and the second middle portion (207) and the IGBT connection portion (208) are bent.

8. A copper busbar arrangement structure according to claim 7, characterized in that: The number of the AC copper busbars (200) is six, and the cross-sectional area of ​​each AC copper busbar (200) is 80 mm 2 The IGBT connector (203) is a hole-shaped structure, the cross-sectional shape of the IGBT connector (203) is oval-shaped, and the long axis direction of the IGBT connector (203) is the same as the length direction of the IGBT connecting portion (208).

9. A copper busbar arrangement structure according to claim 8, characterized in that: It also includes a terminal block positioning member (204), the terminal block positioning member (204) is arranged on the AC wiring part (205), the terminal block positioning member (204), the IGBT connector (203), the motor AC output harness connector (201) and the current sensor connector (202) are all hole-shaped structures, the size of the IGBT connector (203) is 6.4 mm x 3 mm, the diameter of the motor AC output harness connector (201) is 9 mm, the diameter of the current sensor connector (202) is 4.3 mm, and the diameter of the terminal block positioning member (204) is 4.5 mm.

10. The copper busbar arrangement structure according to claim 1, characterized in that: The copper busbar is made of T2 copper plate, which is cut by laser, burrs are removed, holes are punched, and bending is performed in sequence, and the surface of the copper busbar is tinned.

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