High voltage connection device and vehicle

Abstract

The present disclosure provides a high-voltage connection device and a vehicle, relating to the field of vehicle technology. The high-voltage connection device includes: a first high-voltage connector, a second high-voltage connector, and a motor terminal block; the motor terminal block includes a terminal body, a first conductive row group, and a second conductive row group; the terminal body is provided with a first power connection terminal, a second power connection terminal, a third power connection terminal, and a fourth power connection terminal; the first conductive row group and the second conductive row group are detachably located on the surface of the terminal body; the first output terminal is connected to the first conductive row group at the second power connection terminal; the second output terminal is connected to the second conductive row group at the fourth power connection terminal. The high-voltage connection device disclosed in the present disclosure solves the problems of difficult motor wiring and poor connection reliability in the integrated design of dual motors and transmissions.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a high-voltage connecting device and a vehicle. Background Art

[0002] High-voltage connectors are a broad category of connectors that have gradually evolved in recent years, evolving with the development of new energy vehicles in China, separating them from traditional high-voltage, high-current, and low-voltage automotive connectors. Compared to traditional high-voltage, high-current connectors, high-voltage connectors operate in more complex and variable conditions, placing higher demands on connector reliability. Compared to traditional low-voltage automotive connectors, the increased voltage level increases the risk of electric shock, placing even higher demands on connector safety.

[0003] Therefore, high-voltage connectors are required to have better insulation and protection performance to meet the reliability requirements of the high-voltage electrical systems of new energy vehicles. Summary of the Invention

[0004] The present disclosure provides a high-voltage connection device and a vehicle, which can provide better insulation and protection performance and meet the reliability requirements of the high-voltage electrical system of new energy vehicles.

[0005] The technical solution is as follows:

[0006] In one aspect, a high-voltage connection device is provided, which is suitable for connecting two three-phase motors in a transmission housing to a high-voltage electrical system;

[0007] The high-voltage connection device includes: a first high-voltage connector, a second high-voltage connector and a motor terminal block;

[0008] The motor terminal block includes a terminal body, a first conductive row group and a second conductive row group;

[0009] The wiring body is provided with a first power connection end, a second power connection end, a third power connection end, and a fourth power connection end;

[0010] The first power connection terminal and the second power connection terminal are connected via the first conductive row group, and the first conductive row group is detachably located on the surface of the wiring body;

[0011] The third power terminal and the fourth power terminal are connected via the second conductive row group, and the second conductive row group is detachably located on the surface of the wiring body;

[0012] The first high-voltage connector includes a first input end and a first output end, the first input end is connected to the high-voltage electrical system, and the first output end is connected to the first conductive bar group at the second power connection end;

[0013] The second high-voltage connector includes a second input end and a second output end, the second input end is connected to the high-voltage electrical system, and the second output end is connected to the second conductive bar group at the fourth power connection end.

[0014] In some embodiments, the first high-voltage connector and the second high-voltage connector are located on the transmission housing, the first input end and the second input end are located outside the transmission housing, and the first output end and the second output end are located inside the transmission housing;

[0015] The wiring body is provided with at least three fixing holes, and the at least three fixing holes are matched with the fixing platforms protruding from the inner wall of the transmission housing.

[0016] In some embodiments, the wiring body includes a first structural portion, a second structural portion, and a third structural portion that are integrally injected;

[0017] The second structure portion and the third structure portion are respectively connected to the first structure portion; the first structure portion and the second structure portion are respectively close to the three-phase terminals of the two three-phase motors;

[0018] The first power connection end is located on a first end surface of the first structural portion facing one of the three-phase motors, the second power connection end is located on a second end surface of the third structural portion facing the first high-voltage connector, and the first conductive row group is detachably disposed on a surface of the third structural portion;

[0019] The third power connection end is located on the third end surface of the second structural part facing the other three-phase motor, the fourth power connection end is located on the fourth end surface of the second structural part facing the second high-voltage connector, and the second conductive row group is detachably arranged on the surface of the second structural part.

[0020] In some embodiments, the first conductive row group includes three first conductive plates, each of which is provided with at least one positioning hole; the surface of the third structural portion is further provided with three first fixing grooves arranged in parallel and spaced apart;

[0021] The shape of the first fixing groove corresponds to the shape of the first conductive plate, and the three first conductive plates can be detachably arranged in the three first fixing grooves respectively;

[0022] Each of the first fixing slots is provided with at least one pair of first buckles and at least one positioning column;

[0023] The at least one pair of first clips can clamp and fix the first conductive plate in the corresponding first fixing groove, and the at least one positioning column can cooperate with the positioning hole of the first conductive plate.

[0024] In some embodiments, the at least one pair of first buckles are symmetrically arranged on both sides of the first fixing slot;

[0025] Each of the at least one pair of first buckles comprises a connecting portion and a clamping portion, wherein the bottom of the connecting portion is connected to the third structural portion, and the top is connected to the clamping portion; at least a portion of the clamping portion protrudes into the first fixing groove;

[0026] When the first conductive plate is installed in the first fixing slot, the clamping portion is pressed and opens toward the outside of the first fixing slot; after the first conductive plate is installed in the first fixing slot, the clamping portion rebounds under the action of the connecting portion, and the clamping portion clamps and fixes the first conductive plate in the first fixing slot by pressing the outer side surface of the first conductive plate.

[0027] In some embodiments, the first fixing groove includes a first side wall and a second side wall; the first side wall and the second side wall are arranged in parallel and spaced apart, and together with the surface of the third structural part, form the first fixing groove;

[0028] At least one pair of notches are symmetrically formed on the first side wall and the second side wall, and the at least one pair of first buckles are correspondingly located in the at least one pair of notches;

[0029] The connecting portion is aligned with the first side wall or the second side wall, and two sides of the connecting portion along the direction of the first fixing groove are spaced apart from the first side wall or the second side wall respectively.

[0030] In some embodiments, the first conductive plate includes a first bent and crimped section, a first straight extension section, and a second bent and crimped section connected in sequence;

[0031] The first bent and crimped section is located at the first power connection end and can be electrically connected to the three-phase terminal through screws; the first straight extension section is fixed in the first fixing groove through the first clip; the second bent and crimped section is located at the second power connection end and can be electrically connected to the first output end of the first high-voltage connector through screws.

[0032] In some embodiments, the second conductive row group includes three second conductive plates, and the surface of the second structural portion has three second fixing grooves arranged in parallel and spaced apart;

[0033] The shape of the second fixing groove corresponds to the shape of the second conductive plate, and the three second conductive plates can be detachably arranged in the three second fixing grooves respectively;

[0034] The three second fixing grooves are separated in parallel by four third side walls, and the four third side walls and the surface of the second structural portion enclose the three second fixing grooves;

[0035] A clamping edge portion protruding into the second fixing groove is provided on the top of at least one of the two third side walls on both sides of the second fixing groove, and the clamping edge portion can clamp and fix the second conductive plate in the second fixing groove by buckling the outer side surface of the second conductive plate.

[0036] In some embodiments, the second conductive plate includes a third bent and crimped section, a second straight extension section, and a fourth bent and crimped section connected in sequence;

[0037] The third bent crimping section is located at the third power connection end and can be electrically connected to the three-phase terminal through screws; the second straight extension section is fixed in the second fixing groove by the clamping edge; the fourth bent crimping section is located at the fourth power connection end and can be electrically connected to the second output end of the second high-voltage connector through screws.

[0038] In another aspect, a vehicle is provided, wherein the vehicle adopts the high-voltage connection device of the present disclosure.

[0039] The beneficial effects of the technical solution provided by the present disclosure include at least:

[0040] The high-voltage connection device disclosed herein includes a first high-voltage connector, a second high-voltage connector, and a motor terminal block. The motor terminal block includes a terminal body, a first conductive row group, and a second conductive row group, wherein the terminal body is provided with four power terminals. The first conductive row group is connected between two of the power terminals to realize the power supply connection between the first high-voltage connector and a three-phase motor. The second conductive row group is connected between the other two power terminals to realize the power supply connection between the second high-voltage connector and another three-phase motor, thereby solving the problems of difficult motor wiring and poor connection reliability in the integrated design of dual motors and transmissions. The two conductive row groups are respectively detachably connected to the terminal body. The terminal body is pre-assembled with the conductive row group after injection molding, which facilitates the transportation and use of the motor terminal block, as well as the disassembly and maintenance of the conductive row group. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0042] Figure 1 Schematic diagram of the matching state between the high-voltage connection device and the transmission housing provided by an embodiment of the present disclosure;

[0043] Figure 2is a schematic diagram showing the high-voltage connection device and the transmission housing in cooperation with each other from another perspective according to an embodiment of the present disclosure;

[0044] Figure 3 is a structural schematic diagram of a high-voltage connection device provided by an embodiment of the present disclosure;

[0045] Figure 4 This is a schematic structural diagram of a motor terminal block provided by an embodiment of the present disclosure;

[0046] Figure 5 This is a schematic diagram of the motor terminal block structure provided by an embodiment of the present disclosure from another perspective;

[0047] Figure 6 This is a working principle diagram of the motor terminal block provided by an embodiment of the present disclosure;

[0048] Figure 7 is a structural diagram of a wiring body provided by an embodiment of the present disclosure;

[0049] Figure 8 is a structural schematic diagram of the wiring body provided by an embodiment of the present disclosure from another perspective;

[0050] Figure 9 yes Figure 7 A partial enlarged view of the middle part;

[0051] Figure 10 yes Figure 7 A partial enlarged view of point B in the middle;

[0052] Figure 11 is a structural schematic diagram of a first conductive plate provided in an embodiment of the present disclosure;

[0053] Figure 12 It is a structural schematic diagram of the second conductive plate provided in an embodiment of the present disclosure.

[0054] The reference numerals in the figures represent respectively:

[0055] 01. Motor terminal block; 02. Three-phase motor; 021. First three-phase motor; 022. Second three-phase motor; 023. Three-phase terminal; 03. First high-voltage connector; 031. First input terminal; 032. First output terminal; 04. Second high-voltage connector; 041. Second input terminal; 042. Second output terminal; 05. High-voltage electrical system; 06. Transmission housing; 061. Fixing platform;

[0056] 1. Wiring body; 10. Fixing hole; 11. First electrical terminal; 12. Second electrical terminal; 13. Third electrical terminal; 14. Fourth electrical terminal; 15. First fixing slot; 151. First buckle; 1511. Connecting portion; 1512. Clamping portion; 152. Positioning post; 153. First side wall; 154. Second side wall; 155. Notch; 16. Second fixing slot; 161. Third side wall; 162. Clamping edge; 17. First structural portion; 171. First end surface; 18. Second structural portion; 181. Third end surface; 182. Fourth end surface; 19. Third structural portion; 191. Second end surface; 192. Reticulated reinforcement rib

[0057] 2. First conductive row group; 21. First conductive plate; 210. Positioning hole; 211. First bending and crimping section; 212. First straight extension section; 213. Second bending and crimping section;

[0058] 3. Second conductive row group; 31. Second conductive plate; 311. Third bending and crimping section; 312. Second straight extension section; 313. Fourth bending and crimping section. DETAILED DESCRIPTION

[0059] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0060] In the description of the present disclosure, 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 disclosure.

[0061] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0062] Figure 1 This is a schematic diagram of the high-voltage connection device provided by an embodiment of the present disclosure and the transmission housing 06 in cooperation; Figure 2This is a schematic diagram showing the high-voltage connection device provided by an embodiment of the present disclosure and the transmission housing 06 in cooperation with each other from another perspective; Figure 3 is a structural schematic diagram of a high-voltage connection device provided by an embodiment of the present disclosure; Figure 4 It is a structural diagram of the motor terminal block 01 provided in an embodiment of the present disclosure.

[0063] On the one hand, combined with Figure 1-4 As shown, this embodiment provides a high-voltage connection device, which is suitable for connecting two three-phase motors 02 in a transmission housing 06 and a high-voltage electrical system 05.

[0064] The high-voltage connection device includes: a first high-voltage connector 03 , a second high-voltage connector 04 and a motor terminal block 01 .

[0065] The motor terminal block 01 includes a terminal body 1, a first conductive bar group 2, and a second conductive bar group 3; the terminal body 1 is provided with a first power terminal 11, a second power terminal 12, a third power terminal 13, and a fourth power terminal 14; the first power terminal 11 and the second power terminal 12 are connected by the first conductive bar group 2, and the first conductive bar group 2 is detachably located on the surface of the terminal body 1; the third power terminal 13 and the fourth power terminal 14 are connected by the second conductive bar group 3, and the second conductive bar group 3 is detachably located on the surface of the terminal body 1.

[0066] The first high-voltage connector 03 includes a first input terminal 031 and a first output terminal 032. The first input terminal 031 is connected to the high-voltage electrical system 05, and the first output terminal 032 is connected to the first conductive bar group 2 at the second power connection terminal 12; the second high-voltage connector 04 includes a second input terminal 041 and a second output terminal 042. The second input terminal 041 is connected to the high-voltage electrical system 05, and the second output terminal 042 is connected to the second conductive bar group 3 at the fourth power connection terminal 14.

[0067] The high-voltage connection device of this embodiment includes a first high-voltage connector 03, a second high-voltage connector 04, and a motor terminal block 01. The motor terminal block 01 includes a terminal block 1, a first conductive bar group 2, and a second conductive bar group 3. The terminal block 1 is provided with four power terminals. The first conductive bar group 2 is connected between two of the power terminals to achieve a power connection between the first high-voltage connector 03 and one three-phase motor 02. The second conductive bar group 3 is connected between the other two power terminals to achieve a power connection between the second high-voltage connector 04 and another three-phase motor 02. This solves the problems of difficult motor wiring and poor connection reliability in the integrated design of dual motors and transmissions.

[0068] The two conductive bar groups are detachably connected to the wiring body 1 , and the wiring body 1 is pre-assembled with the conductive bar groups after injection molding, which facilitates the transportation and use of the motor terminal block 01 and the disassembly and maintenance of the conductive bar groups.

[0069] Combine Figure 1 、 2 As shown, in some embodiments, the first high-voltage connector 03 and the second high-voltage connector 04 are located on the transmission housing 06, the first input end 031 and the second input end 041 are located outside the transmission housing 06, and the first output end 032 and the second output end 042 are located inside the transmission housing 06.

[0070] The wiring body 1 is provided with at least three fixing holes 10 , which are matched with the fixing platforms 061 protruding from the inner wall of the transmission housing 06 .

[0071] In the high-voltage connection device of this embodiment, the first high-voltage connector 03 and the second high-voltage connector 04 are fixedly connected to the transmission housing 06, and the motor terminal block 01 is fixed in the transmission housing 06, and cooperates with the fixing platform 061 through the fixing hole 10. The fixing platform 061 is integrally formed with the transmission housing 06, and the terminal block has high fixing reliability. The height of the fixing platform 061 can be reasonably set according to the positions of the two three-phase motors 02, so that the terminal block is more convenient to connect with the three-phase terminal 023 of the three-phase motor 02.

[0072] Combine Figure 4-8 As shown, in some embodiments, the wiring body 1 includes a first structural portion 17, a second structural portion 18 and a third structural portion 19 that are integrally injected; the second structural portion 18 and the third structural portion 19 are respectively connected to the first structural portion 17; the first structural portion 17 and the second structural portion 18 are respectively close to the three-phase terminals 023 of the two three-phase motors 02.

[0073] The first power connection terminal 11 is located on the first end surface 171 of the first structure portion 17 facing one of the three-phase motors 02 , and the second power connection terminal 12 is located on the second end surface 191 of the third structure portion 19 facing the first high-voltage connector 03 . The first conductive bar group 2 is detachably disposed on the surface of the third structure portion 19 .

[0074] The third power terminal 13 is located on a third end surface 181 of the second structure portion 18 facing another three-phase motor 02 . The fourth power terminal 14 is located on a fourth end surface 182 of the second structure portion 18 facing the second high-voltage connector 04 . The second conductive bar group 3 is detachably disposed on the surface of the second structure portion 18 .

[0075] The wiring body 1 of this embodiment comprises a first structural portion 17, a second structural portion 18, and a third structural portion 19, all integrally injection-molded, resulting in high overall strength. The first structural portion 17 and the second structural portion 18 are positioned adjacent to the three-phase terminals 023 of the two three-phase motors 02, reducing the distance between the terminals 023 and improving the system's compactness and reliability.

[0076] The first conductive bar group 2 is detachably mounted on the surface of the third structural portion 19. The third structural portion 19 provides fixation and support for the first conductive bar group 2, thereby improving the reliability and stability of the first conductive bar group 2. The second conductive bar group 3 is detachably mounted on the surface of the second structural portion 18. The second structural portion 18 provides fixation and support for the second conductive bar group 3, thereby improving the reliability and stability of the second conductive bar group 3.

[0077] The first structural portion 17, the second structural portion 18, and the third structural portion 19 are integrally injection-molded, resulting in high overall strength. The first structural portion 17 and the second structural portion 18 are located adjacent to the three-phase terminals 023 of the two three-phase motors 02, reducing the distance between the terminals and improving the system's compactness and reliability.

[0078] The first conductive bar group 2 is detachably mounted on the surface of the third structural portion 19. The third structural portion 19 provides fixation and support for the first conductive bar group 2, thereby improving the reliability and stability of the first conductive bar group 2. The second conductive bar group 3 is detachably mounted on the surface of the second structural portion 18. The second structural portion 18 provides fixation and support for the second conductive bar group 3, thereby improving the reliability and stability of the second conductive bar group 3.

[0079] In some possible implementations, metal nuts are embedded in the wiring body 1 at positions corresponding to the first power terminal 11, the second power terminal 12, the third power terminal 13, and the fourth power terminal 14. The metal nuts are integrally injection-molded into the wiring body 1, so that when the first conductive plate 21, the second conductive plate 31, or the three-phase terminal 023 is crimped using a screw, the metal screw and the nut engage to achieve crimping of the first conductive plate 21, the second conductive plate 31, or the three-phase terminal 023.

[0080] In some other possible implementations, the first fixing groove 15 is located on one side of the third structural portion 19, and a mesh reinforcement rib 192 is provided on the other side of the third structural portion 19. The mesh reinforcement rib 192 can increase the strength of the third structural portion 19 and improve the structural strength of the wiring body 1. Figure 7 、 8 In the embodiment, the three first fixing grooves 15 are located on the upper side of the third structural portion 19 , and the mesh reinforcement ribs 192 are located on the lower side of the third structural portion 19 .

[0081] Combine Figure 4 、 7 As shown in Figures 9 and 11, in some embodiments, the first conductive row group 2 includes three first conductive plates 21, each of which is provided with at least one positioning hole 210; the surface of the third structural part 19 is also provided with three first fixing grooves 15 arranged in parallel and spaced apart.

[0082] The shape of the first fixing slots 15 corresponds to the shape of the first conductive plates 21 , and the three first conductive plates 21 can be detachably arranged in the three first fixing slots 15 , respectively. Each first fixing slot 15 is provided with at least one pair of first clips 151 and at least one positioning column 152 .

[0083] At least one pair of first buckles 151 can snap and fix the first conductive plate 21 in the corresponding first fixing slots 15 , and at least one positioning post 152 can cooperate with the positioning hole 210 of the first conductive plate 21 .

[0084] In this embodiment of the high-voltage connection device, the first conductive bar group 2 includes three first conductive plates 21, achieving three-phase electrical conduction. The first conductive plates 21 are accommodated within the first fixing slots 15. The three first fixing slots 15 secure the three first conductive plates 21 at intervals, ensuring stable positioning between the three first conductive plates 21 and preventing them from shifting due to vehicle vibration and causing accidental short circuits.

[0085] Furthermore, the first fixing slot 15 is provided with a first clip 151 and a positioning post 152. The first clip 151 is disposed on both sides of the first fixing slot 15 and can engage and secure the first conductive plate 21 within the first fixing slot 15. The positioning holes 210 of the first conductive plate 21 cooperate with the positioning posts 152 within the first fixing slot 15 to prevent the first conductive plate 21 from moving along the extension direction of the first fixing slot 15, thereby accurately positioning the first conductive plate 21 within the first fixing slot 15.

[0086] For example, the number of the first buckles 151 can be one pair, two pairs, three pairs, etc. The number of each pair of first buckles 151 is two, and the two first buckles 151 appear in pairs according to the position relationship.

[0087] However, it should be understood that the first buckles 151 may also appear individually or in groups of three.

[0088] When the first clips 151 are arranged in pairs, and the number is two or more pairs, the two or more pairs of first clips 151 are spaced apart along the extension direction of the first fixing slot 15 to provide uniform snapping force to the first conductive plate 21 .

[0089] When the first clips 151 are arranged in non-pairs and there are two or more of them, the first clips 151 are alternately arranged on both sides of the first fixing slot 15 along the extension direction of the first fixing slot 15, thereby providing uniform snapping force to the first conductive plate 21.

[0090] Combine Figure 9As shown, in some embodiments, at least one pair of first clips 151 are symmetrically arranged on both sides of the first fixing groove 15; each first clip 151 in the at least one pair of first clips 151 includes a connecting portion 1511 and a clamping portion 1512, the bottom of the connecting portion 1511 is connected to the third structural portion 19, and the top is connected to the clamping portion 1512; at least part of the structure of the clamping portion 1512 protrudes into the first fixing groove 15.

[0091] When the first conductive plate 21 is installed in the first fixing slot 15, the clamping portion 1512 is pressed and opens toward the outside of the first fixing slot 15; after the first conductive plate 21 is installed in the first fixing slot 15, the clamping portion 1512 rebounds under the action of the connecting portion 1511, and the clamping portion 1512 clamps and fixes the first conductive plate 21 in the first fixing slot 15 by buckling the outer side surface of the first conductive plate 21.

[0092] After the connection body is injection molded, the first conductive plate 21 can be pre-assembled with the connection body to form the motor terminal block 01, and can be transported and assembled as a whole, which can improve transportation and assembly efficiency. In addition, it is also convenient to disassemble and replace the first conductive plate 21 during later maintenance.

[0093] Combine Figure 9 As shown, in some embodiments, the first fixing groove 15 includes a first side wall 153 and a second side wall 154; the first side wall 153 and the second side wall 154 are arranged in parallel and spaced apart, and form the first fixing groove 15 with the surface of the third structural portion 19; at least a pair of notches 155 are symmetrically provided on the first side wall 153 and the second side wall 154, and at least a pair of first clips 151 are correspondingly located in at least one pair of notches 155; the connecting portion 1511 is aligned with the first side wall 153 or the second side wall 154, and the connecting portion 1511 is spaced apart from the first side wall 153 or the second side wall 154 on both sides along the direction of the first fixing groove 15.

[0094] In the high-voltage connection device of this embodiment, the first fixing groove 15 includes a first side wall 153 and a second side wall 154. The two side walls can limit the first conductive plate 21 in the first fixing groove 15 to prevent the first conductive plate 21 from moving left and right, ensuring that adjacent first conductive plates 21 maintain a safe distance.

[0095] In order to enable the first buckle 151 to elastically deform when squeezed, the connecting portion 1511 of the first buckle 151 is disconnected from the first side wall 153 or the second side wall 154 , thereby improving the elastic deformation capability of the connecting portion 1511 of the first buckle 151 .

[0096] In some possible implementations, reference Figure 9 As shown, the clamping portion 1512 has a guide inclined surface and a retreat-stopping step surface.

[0097] The guiding slope is located on the inner side of the top of the clamping portion 1512 and can guide when the first conductive plate 21 is pressed down, so that the clamping portion 1512 moves outward and then undergoes elastic deformation, so that the first conductive plate 21 can be smoothly clamped into the first fixing groove 15.

[0098] The stop step surface is located on the inner side of the bottom of the clamping part 1512. After the first conductive plate 21 is clamped in, it can move to the outer side surface of the first conductive plate 21 as the connecting part 1511 recovers. The stop step surface fits with the outer side surface of the first conductive plate 21 to prevent the first conductive plate 21 from falling out of the first fixing groove 15.

[0099] When the first conductive plate 21 needs to be removed from the first fixing slot 15 , the clamping portion 1512 of the first clip 151 is moved outward until the stop step surface moves outside the first conductive plate 21 , thereby allowing the first conductive plate 21 to be removed from the first fixing slot 15 .

[0100] Combine Figure 11 As shown, in some embodiments, the first conductive plate 21 includes a first bent crimping section 211, a first straight extension section 212 and a second bent crimping section 213 connected in sequence; the first bent crimping section 211 is located at the first power connection end 11, and can be electrically connected to the three-phase terminal 023 through screws; the first straight extension section 212 is fixed in the first fixing groove 15 by the first buckle 151; the second bent crimping section 213 is located at the second power connection end 12, and can be electrically connected to the first output end 032 of the first high-voltage connector 03 through screws.

[0101] Thus, the first conductive plate 21 of this embodiment can realize the power supply connection between the first high-voltage connector 03 and the three-phase terminal 023 of the first three-phase motor 021 through the first bending crimping section 211, the first straight extension section 212 and the second bending crimping section 213, thereby meeting the power supply connection at different positions of the first high-voltage connector 03 and the first three-phase motor 021.

[0102] Exemplarily, through holes for screws to pass through are respectively provided at both ends of the first conductive plate 21 .

[0103] Combine Figure 4 、 7 As shown in Figures 10 and 12 , in some embodiments, the second conductive row group 3 includes three second conductive plates 31 , and the surface of the second structural portion 18 has three second fixing grooves 16 arranged in parallel and spaced apart.

[0104] The shape of the second fixing groove 16 corresponds one-to-one to the shape of the second conductive plate 31, and the three second conductive plates 31 can be detachably arranged in the three second fixing grooves 16 respectively; the three second fixing grooves 16 are separated in parallel by four third side walls 161, and the four third side walls 161 and the surface of the second structural part 18 form three second fixing grooves 16.

[0105] A clamping edge 162 is provided at the top of at least one of the two third side walls 161 on both sides of the second fixing groove 16 and protrudes into the second fixing groove 16 . The clamping edge 162 can clamp and fix the second conductive plate 31 in the second fixing groove 16 by pressing the outer side surface of the second conductive plate 31 .

[0106] In this embodiment of the high-voltage connection device, the second conductive bar group 3 includes three second conductive plates 31, achieving three-phase electrical conduction. The second conductive plates 31 are accommodated within the second fixing slots 16. The three second fixing slots 16 secure the three second conductive plates 31 at intervals, ensuring stable positioning between the three second conductive plates 31 and preventing them from shifting due to vehicle vibration and causing accidental short circuits.

[0107] In addition, a clamping edge 162 is provided at the top of the third side wall 161 of the second fixing groove 16 . The clamping edge 162 can clamp and fix the second conductive plate 31 in the second fixing groove 16 .

[0108] Combine Figure 12 As shown, in some embodiments, the second conductive plate 31 includes a third bending and crimping section 311 , a second straight extension section 312 , and a fourth bending and crimping section 313 that are sequentially connected.

[0109] The third bent crimping section 311 is located at the third power connection end 13 and can be electrically connected to the three-phase terminal 023 via screws; the second straight extension section 312 is fixed in the second fixing groove 16 by the clamping edge 162; the fourth bent crimping section 313 is located at the fourth power connection end 14 and can be electrically connected to the second output end 042 of the second high-voltage connector 04 via screws.

[0110] Thus, the second conductive plate 31 of this embodiment can realize the power supply connection between the second high-voltage connector 04 and the three-phase terminal 023 of the second three-phase motor 022 through the third bending crimping section 311, the second straight extension section 312 and the fourth bending crimping section, thereby meeting the power supply connection at different positions of the second high-voltage connector 04 and the second three-phase motor 022.

[0111] Exemplarily, through holes for screws to pass through are respectively provided at both ends of the second conductive plate 31 .

[0112] On the other hand, this embodiment provides a vehicle, which adopts the high-voltage connecting device of the present disclosure.

[0113] The vehicle of this embodiment adopts the high-voltage connection device disclosed in the present invention, which can achieve stable and reliable connection between the two three-phase motors 02 and the high-voltage electrical system 05.

[0114] It should be noted that the terms "several" and "at least one" in this document refer to one or more, while "multiple" and "at least two" refer to two or more. "And / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0115] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0116] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0117] In the description of this specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," 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 present disclosure.

[0118] The above descriptions are merely embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. A high voltage connection device, characterized in that: The high-voltage connection device is suitable for connecting two three-phase motors (02) in a transmission housing (06) with a high-voltage electrical system (05); The high-voltage connection device comprises: a first high-voltage connector (03), a second high-voltage connector (04) and a motor terminal block (01); The motor terminal block (01) comprises a terminal body (1), a first conductive row group (2) and a second conductive row group (3); The wiring body (1) is provided with a first power connection end (11), a second power connection end (12), a third power connection end (13), and a fourth power connection end (14); The first power connection terminal (11) and the second power connection terminal (12) are connected via the first conductive row group (2), and the first conductive row group (2) is detachably located on the surface of the wiring body (1); The third power connection terminal (13) and the fourth power connection terminal (14) are connected via the second conductive row group (3), and the second conductive row group (3) is detachably located on the surface of the wiring body (1); The first high-voltage connector (03) comprises a first input end (031) and a first output end (032), wherein the first input end (031) is connected to the high-voltage electrical system (05), and the first output end (032) is connected to the first conductive bar group (2) at the second power connection end (12); The second high-voltage connector (04) comprises a second input end (041) and a second output end (042), wherein the second input end (041) is connected to the high-voltage electrical system (05), and the second output end (042) is connected to the second conductive bar group (3) at the fourth power connection end (14); The wiring body (1) comprises a first structural part (17), a second structural part (18) and a third structural part (19) which are integrally injected; The second structural part (18) and the third structural part (19) are respectively connected to the first structural part (17); the first structural part (17) and the second structural part (18) are respectively close to the three-phase terminals (023) of the two three-phase motors (02); The first power connection end (11) is located on a first end surface (171) of the first structural portion (17) facing one of the three-phase motors (02), the second power connection end (12) is located on a second end surface (191) of the third structural portion (19) facing the first high-voltage connector (03), and the first conductive row group (2) is detachably arranged on a surface of the third structural portion (19); The third power connection terminal (13) is located on a third end surface (181) of the second structural portion (18) facing the other three-phase motor (02), the fourth power connection terminal (14) is located on a fourth end surface (182) of the second structural portion (18) facing the second high-voltage connector (04), and the second conductive row group (3) is detachably arranged on the surface of the second structural portion (18).

2. The high-voltage connection device according to claim 1, characterized in that: The first high-voltage connector (03) and the second high-voltage connector (04) are located on the transmission housing (06), the first input end (031) and the second input end (041) are located outside the transmission housing (06), and the first output end (032) and the second output end (042) are located inside the transmission housing (06); The wiring body (1) is provided with at least three fixing holes (10), and the at least three fixing holes (10) cooperate with the fixing platform (061) protruding from the inner wall of the transmission housing (06).

3. The high voltage connection device according to claim 1, characterized in that: The first conductive row group (2) comprises three first conductive plates (21), each of the first conductive plates (21) being provided with at least one positioning hole (210); the surface of the third structural portion (19) is further provided with three first fixing grooves (15) arranged in parallel and spaced apart; The shape of the first fixing slot (15) corresponds to the shape of the first conductive plate (21) one by one, and the three first conductive plates (21) can be detachably arranged in the three first fixing slots (15) respectively; Each of the first fixing slots (15) is provided with at least one pair of first buckles (151) and at least one positioning column (152); The at least one pair of first clips (151) can snap-fit ​​and fix the first conductive plate (21) in the corresponding first fixing slot (15), and the at least one positioning column (152) can cooperate with the positioning hole (210) of the first conductive plate (21).

4. The high voltage connection device according to claim 3, characterized in that: The at least one pair of first buckles (151) are symmetrically arranged on both sides of the first fixing slot (15); Each of the at least one pair of first buckles (151) comprises a connecting portion (1511) and a clamping portion (1512), wherein the bottom of the connecting portion (1511) is connected to the third structural portion (19), and the top is connected to the clamping portion (1512); at least a portion of the clamping portion (1512) protrudes into the first fixing groove (15); When the first conductive plate (21) is installed in the first fixing groove (15), the clamping portion (1512) is pressed and opens toward the outside of the first fixing groove (15); after the first conductive plate (21) is installed in the first fixing groove (15), the clamping portion (1512) rebounds under the action of the connecting portion (1511), and the clamping portion (1512) clamps and fixes the first conductive plate (21) in the first fixing groove (15) by pressing the outer side surface of the first conductive plate (21).

5. The high voltage connection device according to claim 4, characterized in that: The first fixing groove (15) includes a first side wall (153) and a second side wall (154); the first side wall (153) and the second side wall (154) are arranged in parallel and spaced apart, and together with the surface of the third structural portion (19) form the first fixing groove (15); At least one pair of notches (155) are symmetrically formed on the first side wall (153) and the second side wall (154), and the at least one pair of first buckles (151) are correspondingly located in the at least one pair of notches (155); The connecting portion (1511) is aligned with the first side wall (153) or the second side wall (154), and the connecting portion (1511) is spaced from the first side wall (153) or the second side wall (154) on both sides along the direction of the first fixing groove (15).

6. The high voltage connection device according to claim 5, characterized in that: The first conductive plate (21) comprises a first bending and crimping section (211), a first straight extension section (212), and a second bending and crimping section (213) which are connected in sequence; The first bent and crimped section is located at the first power connection end (11) and can be electrically connected to the three-phase terminal (023) via screws; the first straight extension section (212) is fixed in the first fixing groove (15) via the first buckle (151); the second bent and crimped section (213) is located at the second power connection end (12) and can be electrically connected to the first output end (032) of the first high-voltage connector (03) via screws.

7. The high voltage connection device according to claim 2, characterized in that: The second conductive row group (3) includes three second conductive plates (31), and the surface of the second structural portion (18) has three second fixing grooves (16) arranged in parallel and spaced apart. The shape of the second fixing groove (16) corresponds to the shape of the second conductive plate (31) one by one, and the three second conductive plates (31) can be detachably arranged in the three second fixing grooves (16) respectively; The three second fixing grooves (16) are separated in parallel by four third side walls (161), and the four third side walls (161) and the surface of the second structural portion (18) enclose the three second fixing grooves (16); A clamping edge portion (162) protruding into the second fixing groove (16) is provided at the top of at least one of the two third side walls (161) on both sides of the second fixing groove (16), and the clamping edge portion (162) can clamp and fix the second conductive plate (31) in the second fixing groove (16) by pressing the outer side surface of the second conductive plate (31).

8. The high voltage connection device according to claim 7, characterized in that: The second conductive plate (31) comprises a third bent and crimped section (311), a second straight extension section (312), and a fourth bent and crimped section (313) which are connected in sequence; The third bent crimping section (311) is located at the third power connection end (13) and can be electrically connected to the three-phase terminal (023) via screws; the second straight extension section (312) is fixed in the second fixing groove (16) via the clamping edge (162); the fourth bent crimping section (313) is located at the fourth power connection end (14) and can be electrically connected to the second output end (042) of the second high-voltage connector (04) via screws.

9. A vehicle, characterized in that: The vehicle adopts the high-voltage connecting device according to any one of claims 1 to 8.

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