New energy power supply connector assembly

Abstract

The invention relates to the technical field of electric connection, in particular to a new energy power supply connector assembly, which comprises a socket connector and a plug connector, and the socket connector and the plug connector are in mutual plug-in connection. The socket connector comprises a socket shell, a socket power supply assembly and a socket signal assembly, the socket shell comprises a socket panel, a butt joint plug and a fixed connection part, and the plug connector comprises a plug shell, a plug end cover, a plug shielding shell, a power connection fixing assembly and a plug power connection assembly. The plug shell is provided with a plug part and a wiring part, the plug part is provided with a plug-in cavity, the wiring part is provided with a wiring cavity, and one end of the wiring cavity is communicated with the plug-in cavity. According to the invention, strict requirements of a high-voltage battery system of a new energy automobile on a power supply and a signal connector are met.

Description

Technical Field

[0001] This invention relates to the field of electrical connection technology, and in particular to a new energy power connector assembly. Background Technology

[0002] In the field of new energy vehicles and energy storage systems, the highly reliable integrated transmission of high-voltage power supplies and signals is one of the key technological challenges. Currently, vehicle battery management systems typically require separate power and signal connectors between themselves and high-voltage loads, resulting in dispersed layouts, large space requirements, complex wiring harnesses, and low assembly efficiency. This discrete structure not only increases system weight and cost but also introduces risks such as increased contact resistance, heightened electromagnetic interference, and terminal loosening under vibration due to repeated mating and lengthy wiring. Existing integrated connectors often employ simple stacking designs, lacking effective isolation and shielding between power and signal channels, which can easily lead to high-frequency signal crosstalk and affect control accuracy. Furthermore, the terminal fixing methods are generally weak, making it difficult to withstand continuous vehicle vibration and mechanical shock, posing a risk of connection failure. In addition, the sealing performance and modularity of traditional connectors are insufficient, hindering rapid assembly and maintenance.

[0003] Therefore, there is an urgent need to develop a highly integrated, compact, multi-layered, fully enclosed electromagnetic shielding, and highly environmentally adaptable hybrid connector assembly for new energy power signals to improve the safety and reliability of the vehicle's electrical system. Summary of the Invention

[0004] To address the aforementioned issues, this invention provides a new energy power connector assembly that features high integration, high reliability, excellent EMC performance, good environmental adaptability, ease of assembly, and safe operation. It fully meets the stringent requirements of high-voltage battery systems in new energy vehicles for power and signal connectors, and possesses significant practical value and market potential.

[0005] The technical solution adopted in this invention is as follows: a new energy power connector assembly, including a socket connector and a plug connector, wherein the socket connector and the plug connector are mutually plugged and connected; the socket connector includes a socket housing, a socket power component, and a socket signal component; the socket housing includes a socket panel, a mating plug, and a fixed connection part; the mating plug and the fixed connection part are respectively disposed on both sides of the socket panel; the mating plug is provided with a socket connection cavity; a power plug and a signal plug are disposed in the socket connection cavity; the power plug is provided with a power slot; the signal plug is provided with a first signal slot; the socket power component is disposed on the power slot; the socket signal component is disposed on the first signal slot; one end of the power slot and the first signal slot are both connected to the fixed connection part; the plug connector includes a plug housing, a plug end cap, a plug shielding housing, a power connection fixing component, and a plug power connection component; the plug housing is provided with a plug part and a wiring part; the plug part is provided with a mating cavity; the wiring part is provided with a wiring cavity. One end of the wiring cavity is connected to the mating cavity; the plug end cap is disposed at the port of the mating cavity; the plug shielding shell covers the outside of the power connection fixing assembly to fix the power connection fixing assembly in the mating cavity; the power connection fixing assembly includes a front fixing seat, a rear fixing seat, and a tail fixing assembly; the front fixing seat and the rear fixing seat are assembled together to form a fixing bracket; the tail fixing assembly is disposed in the wiring cavity; the plug power connection assembly includes a plug conductive piece and a conductive connecting wire; the plug conductive piece is disposed in the fixing bracket; one end of the conductive connecting wire is connected to the plug conductive piece, and the other end is fixed by the tail fixing assembly and extends to the outside of the wiring cavity; the front fixing seat is provided with an I-shaped bracket, which is used to fix the plug conductive piece to form mating slots on both sides of the fixing bracket; the plug end cap is provided with a second signal slot, and a second signal terminal is disposed in the second signal slot; the mating plug is used to be inserted into the mating cavity so that the power plug is connected to the plug conductive piece and the signal plug is connected to the second signal terminal.

[0006] A further improvement to the above solution is that the socket power assembly includes a power fixing base, a power receiving element, a power receiving clamping element, and a shielding cover. The shielding cover is disposed outside the power plug, the power receiving clamping element is disposed at the end of the power receiving element, the power fixing base is used to fix the power receiving element to the power socket, the end of the power plug is provided with a mating slot, the mating slot is provided with abutment baffles on both sides, one end of the power receiving clamping element abuts against the abutment baffles, and the power receiving clamping element is provided with a contact clamping groove facing the mating slot.

[0007] A further improvement to the above solution is that the power plug has an external cover groove, one side of which has a fastening groove and the other side has an elastic positioning groove. One end of the shield has a fixing buckle and the other end has a first contact spring. The fixing buckle is used to fasten onto the fastening groove. One end of the first contact spring extends into the elastic positioning groove and has a contact protrusion, one end of which is exposed outside the elastic positioning groove. The end of the fastening groove has a fastening slot, and the fixing buckle has a fastening hook for fastening onto the fastening slot. Second contact springs are provided on both sides of the shield, and these second contact springs are used for conductive connection when the connector is plugged in. Multiple fastening grooves and elastic positioning grooves are provided.

[0008] A further improvement to the above solution is that the socket connection cavity is provided with a recessed groove on the outer periphery of the power plug, and a positioning step is provided on the recessed groove. One end of the elastic positioning groove is connected to the recessed groove, and the positioning step is used for positioning the end face of the shielding cover.

[0009] A further improvement to the above solution is that a fixed mating groove is provided inside the fixed connection part, and a positioning keyway and a positioning slot are provided on the groove wall surface of the fixed mating groove. Positioning strips and positioning buckles are provided on both sides of the power supply fixing seat. The positioning buckles are used to cooperate with the positioning slots, and the positioning strips are used to cooperate with the positioning keyway, so as to fix one end of the power connection element to the fixed connection part.

[0010] A further improvement to the above solution is that the power supply mounting base consists of two mating fixing structural members, with clamping and fixing grooves arranged opposite each other on the two fixing structural members. The clamping and fixing grooves are used to clamp and fix one end of the power receiving element. The fixing structural members are provided with locking pins, and the power receiving element is provided with locking slots. The locking pins are used to insert into the locking slots to fix the power receiving element. One end of the power receiving element is connected to the power receiving clamping element, and the other end is provided with a wiring part, which is provided with a wiring ring.

[0011] A further improvement to the above solution is that the power-connecting clamping element is composed of multiple mutually mirror-shaped S-shaped terminals, which are arranged vertically in a continuous manner; the socket signal assembly includes a signal mounting base and a first signal terminal, the signal mounting base is provided with mounting buckles on both sides, the first signal slot is provided with mounting slots on both sides, the mounting slots are used to cooperate with the mounting buckles to fix it in the first signal slot, and the first signal terminal is disposed in the signal mounting base.

[0012] A further improvement to the above scheme is that the plug housing has a mating slot located on the outside of the plug portion, a connecting step is provided between the mating slot and the plug portion, the plug end cap is provided on the connecting step, and a plug sealing ring is provided on the outer periphery of the connecting step, with the sealing lip of the plug sealing ring facing the groove wall of the mating slot; the plug housing has two sets of mating cavities and wiring cavities arranged side by side to correspond to positive and negative power supply connections; a partition plate is provided between the two sets of mating cavities and wiring cavities for separation; a signal fixing groove is provided on the partition plate, and the second signal terminal is provided at one end of the second signal terminal extending to the signal fixing groove for wiring of the second signal terminal.

[0013] A further improvement to the above solution is that multiple assembly positioning slots are provided in both the insertion cavity and the wiring cavity, the plug shielding shell is provided with an external assembly protrusion and a covering fastener, the external assembly protrusion is used to cooperate with the assembly positioning slot, the port of the front fixing seat is provided with a covering fastener slot, and the covering fastener is fastened to the covering fastener slot so that the plug shielding shell covers the outside of the fixing bracket.

[0014] A further improvement to the above solution is that the front fixing seat has connecting buckles on both sides, and the rear fixing seat has connecting slots on both sides. The connecting slots are used to engage with the connecting buckles, so that the front fixing seat and the rear fixing seat are engaged. The front fixing seat has a front fixing slot, and the rear fixing seat has a rear fixing slot. The front fixing slot and the rear fixing slot are opposite to each other. One end of the front fixing slot extends to the I-shaped bracket. One end of the plug conductive piece is inserted into the front fixing slot, and the rear fixing slot is used to fix the rear side of the plug conductive piece.

[0015] A further improvement to the above solution is that a first protrusion is provided on the front fixing slot, a second protrusion is provided on the rear fixing slot, and a first groove and a second groove are respectively provided on the front and rear sides of the plug conductive piece. The first groove is used to cooperate with the first protrusion, and the second groove is used to cooperate with the second protrusion to fix the plug conductive piece. The plug conductive piece includes a conductive contact part, a bent part, and a conductive connecting part connected in sequence. The conductive contact part is provided on the front fixing slot, the bent part is S-shaped, and the conductive connecting part extends toward the rear fixing assembly and is used to connect the conductive connecting wire.

[0016] A further improvement to the above solution is that the tail fixing assembly includes a shielding tail shell, a fixing ring, a sealing element, and a fixing tail cover connected sequentially from top to bottom. The shielding tail shell is disposed at the bottom of the fixing bracket and connected to the plug shielding shell. The fixing ring is used to fix the conductive connecting wire to the shielding tail shell. The sealing element is used to fix the conductive connecting wire in the wiring cavity. The fixing tail cover is used to fix the sealing element in the wiring cavity. The sealing element includes a sealing top cover, a sealing element, and a sealing bracket connected sequentially from top to bottom. One end of the sealing bracket is provided with a clamping sleeve. The fixing tail cover is used to fix the clamping sleeve so that the clamping sleeve clamps and seals the conductive connecting wire.

[0017] The beneficial effects of this invention are: Compared to existing new energy power connectors, this invention integrates the power plug and signal plug into the same socket connection cavity, achieving unified wiring through a fixed connection part. The plug connector houses both power and signal terminals within the socket cavity, resulting in a highly compact structure. This reduces the number of connectors and installation space, meeting the high-efficiency utilization requirements of limited layout space in new energy vehicle battery systems and simplifying the complexity of vehicle wiring harnesses. The plug connector uses a front-end and rear-end fixing base to form a fixing bracket, combined with an I-shaped bracket to create multi-point rigid fixation for the plug conductive pieces, ensuring the positional stability of the power terminals during insertion / removal, mechanical vibration, and thermal stress, preventing poor contact or loosening. The precise mating slot between the power socket power assembly and the plug conductive pieces provides a large-area, low-impedance contact interface, ensuring high current transmission efficiency and long-term electrical reliability. The plug shielding shell covers the power connection fixing assembly and connects to the shielding tail shell in the rear fixing assembly, forming a continuous and complete electromagnetic shielding cavity. This effectively suppresses the impact of external electromagnetic interference on high-voltage power supply and signal transmission, while also reducing the connector's own electromagnetic radiation. The signal transmission path is isolated from the power path through the socket signal component and the second signal terminal of the plug, further reducing the risk of crosstalk and ensuring low bit error rate transmission of the battery management system signal. Radial sealing is achieved between the plug end cap and the plug housing through structures such as plug-in sealing rings. The tail fixing component uses multi-layer sealing elements to apply axial compression and radial clamping sealing to the conductive connecting wires, providing a high level of dust and water resistance. The panel structure of the socket connector also helps to isolate the external environment, improving the long-term reliability of the entire connection system under harsh conditions such as humidity, dust, and vibration. The power and signal components of the socket connector can be separately installed in the slot; the power connection fixing component of the plug connector adopts a snap-fit ​​assembly, and both the tail fixing component and the shielding housing have positioning structures, simplifying the production assembly process, improving product consistency and production efficiency, and facilitating fault diagnosis and on-site replacement. This invention features high integration, high reliability, excellent EMC performance, good environmental adaptability, ease of assembly, and safe operation, fully meeting the stringent requirements of high-voltage battery systems in new energy vehicles for power and signal connectors, and has high practical value and market prospects. Attached Figure Description

[0018] Figure 1 This is a perspective view of the new energy power connector assembly of the present invention; Figure 2 for Figure 1 A three-dimensional view of the power connector assembly from another perspective; Figure 3 for Figure 1 A 3D view of the socket connector of the power connector assembly of China New Energy; Figure 4 for Figure 1 A three-dimensional view of the socket connector of the power connector assembly of China New Energy; Figure 5 for Figure 1 Exploded view of the socket connector of the power connector assembly of China New Energy; Figure 6 for Figure 1 A structural diagram of the socket connector of the Zhongxin Energy power connector assembly; Figure 7 for Figure 1 A structural diagram of the socket connector of the Zhongxin Energy power connector assembly from another direction; Figure 8 for Figure 1 A partial structural diagram of the socket connector of the Zhongxin Energy power connector assembly; Figure 9 for Figure 1 A three-dimensional schematic diagram of the plug connector of the Zhongxin Energy power connector assembly; Figure 10 for Figure 1 An exploded view of the plug connector of the power connector assembly of China New Energy. Figure 11 for Figure 1 An exploded view of the plug connector of the power connector assembly of China New Energy. Figure 12 for Figure 1 A front view schematic diagram of the plug connector of the Zhongxin Energy power connector assembly; Figure 13 for Figure 12 Sectional view of AA; Figure 14 for Figure 1 Internal structure diagram of the plug connector of the Zhongxin Energy power connector assembly.

[0019] Explanation of reference numerals in the attached diagram: Socket connector 10, Plug connector 20; Socket housing 1, socket panel 11, mating plug 12, fixed connection part 13, fixed mating groove 131, positioning keyway 132, positioning slot 133, socket connection cavity 14, recessed groove 141, positioning step 142, power plug 15, power slot 151, mating slot 151, abutment baffle 152, covering slot 153, snap-fit ​​groove 1531, elastic positioning groove 1532, snap-fit ​​slot 1533, signal plug 16, first signal slot 161; Socket power assembly 2, power fixing base 21, positioning strip 211, positioning buckle 212, fixing structure 213, locking pin 2131, power connection element 22, power connection clamping element 23, contact clamping groove 231, shielding cover 24, fixing buckle 241, fastening hook 2411, first contact spring 242, contact protrusion 2421, second contact spring 243; Socket signal assembly 3, signal mounting base 31, mounting buckle 311, first signal terminal 32; Plug housing 4, plug part 41, wiring part 42, mating cavity 43, partition plate 431, signal fixing groove 432, assembly positioning groove 433, wiring cavity 44, mating slot 45, connecting step 451, mating sealing ring 452; Plug end cap 5, second signal slot 51, second signal terminal 52; 6. Plug shielding shell; 61. External mounting buckle; 62. Covering fastener; Power connection fixing assembly 7, front fixing seat 71, connecting buckle 711, front fixing slot 712, first protrusion 713, rear fixing seat 72, connecting slot 721, rear fixing slot 722, second protrusion 723, tail fixing assembly 73, shielding tail shell 731, fixing ring 732, sealing element 733, sealing top cover 7331, sealing element 7332, sealing bracket 7333, clamping sleeve 7334, fixing tail cover 734, I-shaped bracket 74; The plug connection assembly 8, the plug conductive plate 81, the first groove 811, the second groove 812, the conductive contact part 813, the bending part 814, the conductive connection part 815, and the conductive connection wire 82. Detailed Implementation

[0020] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-14As shown, in one embodiment of the present invention, a new energy power connector assembly is provided, including a socket connector 10 and a plug connector 20, wherein the socket connector 10 and the plug connector 20 are mutually plugged and connected; the socket connector 10 includes a socket housing 1, a socket power component 2, and a socket signal component 3. The socket housing 1 includes a socket panel 11, a mating plug 12, and a fixing connection part 13. The mating plug 12 and the fixing connection part 13 are respectively disposed on both sides of the socket panel 11. The mating plug 12 is provided with a socket connection cavity 14, and a power plug 15 and a signal plug are disposed in the socket connection cavity 14. 16. The power plug 15 is provided with a power slot 151, the signal plug 16 is provided with a first signal slot 161, the socket power assembly 2 is provided on the power slot 151, and the socket signal assembly 3 is provided on the first signal slot 161; one end of both the power slot 151 and the first signal slot 161 is connected to the fixed connection part 13; the plug connector 20 includes a plug housing 4, a plug end cover 5, a plug shield housing 6, a power connection fixing assembly 7, and a plug power connection assembly 8. The plug housing 4 is provided with a plug portion 41 and a wiring portion 42. The plug portion 41 is provided with a mating cavity 43, and the wiring portion 42... A wiring cavity 44 is provided, one end of which communicates with a mating cavity 43. A plug end cap 5 is provided at the port of the mating cavity 43. A plug shielding shell 6 covers the outside of the power connection fixing assembly 7 to fix the power connection fixing assembly 7 in the mating cavity 43. The power connection fixing assembly 7 includes a front fixing seat 71, a rear fixing seat 72, and a tail fixing assembly 73. The front fixing seat 71 and the rear fixing seat 72 are assembled to form a fixing bracket. The tail fixing assembly 73 is provided in the wiring cavity 44. The plug power connection assembly 8 includes a plug conductive piece 81 and a conductive connecting wire 82. The plug conductive piece 81 is provided with... Within the fixed bracket, one end of the conductive connecting wire 82 is connected to the plug conductive piece 81, and the other end is fixed by the tail fixing component 73, extending to the outside of the wiring cavity 44. The front fixing seat 71 is provided with an I-shaped bracket 74, which is used to fix the plug conductive piece 81 to form mating slots on both sides of the fixed bracket. The plug end cover 5 is provided with a second signal slot 51, and a second signal terminal 52 is provided in the second signal slot 51. The mating plug 12 is used to be inserted into the mating cavity 43 so that the power plug 15 is connected to the plug conductive piece 81, and the signal plug 16 is connected to the second signal terminal 52. In this embodiment, the socket connector 10 integrates the power plug 15 and the signal plug 16 in the same socket connection cavity 14, and achieves unified wiring through the fixed connection part 13. The plug connector 20 houses the power and signal terminals in the mating cavity 43, resulting in a highly compact structure. This reduces the number of connectors and installation space, adapts to the high-efficiency utilization requirements of the limited layout space of the new energy vehicle battery system, and simplifies the complexity of the vehicle wiring harness.In the plug connector 20, a front-end fixing base 71 and a rear-end fixing base 72 are mated to form a fixing bracket, which, together with an I-shaped bracket 74, forms a multi-point rigid fixation for the plug conductive piece 81. This ensures the positional stability of the power terminals during insertion and removal, mechanical vibration, and thermal stress, preventing poor contact or loosening. The power slot 151 of the socket power assembly 2 precisely matches the mating slot formed by the plug conductive piece 81, providing a large-area, low-impedance contact interface, ensuring high current transmission efficiency and long-term electrical reliability. The plug shielding shell 6 covers the power connection fixing assembly 7 and connects to the shielding tail shell in the tail fixing assembly 73, forming a continuous and complete electromagnetic shielding cavity. This effectively suppresses the impact of external electromagnetic interference on high-voltage power supply and signal transmission, while also reducing the connector's own electromagnetic radiation. The signal transmission path is isolated from the power path through the socket signal assembly 3 and the plug's second signal terminal 52, further reducing crosstalk risk and ensuring low bit error rate transmission of the battery management system signal. The plug end cap 5 and the plug housing 4 achieve radial sealing through a structure such as a plug-in sealing ring. The tail fixing component 73 uses multi-layer sealing elements to apply axial compression and radial clamping sealing to the conductive connecting wire 82, providing a high level of dustproof and waterproof protection. The panel structure of the socket connector 10 also helps to isolate the external environment, improving the long-term reliability of the entire connection system under harsh conditions such as humidity, dust, and vibration. The power and signal components of the socket connector 10 can be separately installed in the slot; the power connection fixing component 7 of the plug connector 20 adopts a snap-fit ​​assembly, and both the tail fixing component 73 and the shielding housing have positioning structures, simplifying the production and assembly process, improving product consistency and production efficiency, and facilitating fault diagnosis and on-site replacement. This invention features high integration, high reliability, excellent EMC performance, good environmental adaptability, ease of assembly, and safe operation, fully meeting the stringent requirements of high-voltage battery systems for power and signal connectors in new energy vehicles, and has high practical value and market prospects.

[0023] See Figures 3-8As shown, the socket power assembly 2 includes a power mounting base 21, a connecting element 22, a connecting clamping element 23, and a shielding cover 24. The shielding cover 24 is disposed outside the power plug 15. The connecting clamping element 23 is disposed at the end of the connecting element 22. The power mounting base 21 is used to fix the connecting element 22 onto the power slot 151. The end of the power plug 15 is provided with a mating slot 151. Abutment baffles 152 are provided on both sides of the mating slot 151. One end of the connecting clamping element 23 abuts against the abutment baffles 152. The connecting clamping element 23 is provided with a contact clamping groove 231 facing the mating slot 151. In this embodiment, the socket power assembly 2 adopts a modular integrated design. The connecting element 22 is securely installed in the power slot 151 by the power mounting base 21, ensuring the mechanical strength and positional accuracy of the high-voltage conductive interface. The shielding cover 24 covers the outside of the power plug 15, effectively isolating electromagnetic interference and ensuring signal integrity under high current transmission. A power-connecting clamping element 23 is located at the end of the power-connecting element 22. One end of the clamping element is axially limited by abutting a baffle 152 to prevent backlash or loosening during insertion and removal. Its contact clamping groove 231, facing the mating slot 151, forms an elastic clamping contact with the plug conductive piece 81 during insertion, reducing contact resistance and providing continuous contact pressure to withstand vibration and thermal expansion and contraction. This improves the reliability and durability of the power connection, meeting the stringent safety and stability requirements of high-voltage, high-current connections in new energy vehicles.

[0024] The power plug 15 has an external cover groove 153. One side of the cover groove 153 has a fastening groove 1531, and the other side has an elastic positioning groove 1532. One end of the shielding cover 24 has a fixing buckle 241, and the other end has a first contact spring 242. The fixing buckle 241 is used to fasten onto the fastening groove 1531. One end of the first contact spring 242 extends into the elastic positioning groove 1532, and the first contact spring 242 has a contact protrusion 2421. One end of the contact protrusion 2421 is exposed outside the elastic positioning groove 1532; the end of the fastening groove 1531 is provided with a fastening slot 1533, and the fixing buckle 241 is provided with a fastening hook 2411, which is used to fasten onto the fastening slot 1533; the shielding cover 24 is provided with second contact springs 243 on both sides, which are used for conductive connection when the contact object connector is plugged in; multiple fastening grooves 1531 and elastic positioning grooves 1532 are provided. In this embodiment, the shielding cover 24 is hook-locked by the fixing buckle 241 and the fastening slot 1533 of the fastening groove 1531, and combined with the first contact spring 242 embedded in the elastic positioning groove 1532, a multi-point mechanical fixation is formed, which effectively prevents the shielding cover 24 from loosening under vibration and impact, and ensures the continuity of electromagnetic shielding. The contact protrusions 2421 on the first contact spring 242 are exposed in the elastic positioning groove 1532, enabling them to form elastic contact with adjacent conductive structures during assembly, further enhancing shielding effectiveness and reducing grounding impedance. The second contact spring 243 is located on both sides of the shielding cover 24, achieving reliable contact with the mating connector during mating, establishing a low-impedance shielding path, and suppressing electromagnetic interference. The distributed design of multiple sets of snap-fit ​​grooves 1531 and elastic positioning grooves 1532 improves assembly redundancy and adaptability, ensuring stable enclosure and electrical performance of the shielding cover 24 under various operating conditions, meeting the high EMC protection requirements of high-voltage connectors for new energy vehicles.

[0025] A recessed groove 141 is provided on the outer periphery of the power plug 15 in the socket connection cavity 14. A positioning step 142 is provided on the recessed groove 141. One end of the elastic positioning groove 1532 is connected to the recessed groove 141. The positioning step 142 is used for positioning the end face of the shield 24. In this embodiment, by providing a recessed groove 141 with a positioning step 142 on the outer periphery of the power plug 15 in the socket connection cavity 14 and connecting it with the elastic positioning groove 1532 of the shield 24, the shield 24 is accurately positioned in the axial and radial directions. The positioning step 142 provides a reliable mechanical stop for the end face of the shield 24, restricting its assembly position and ensuring that it will not move when subjected to insertion or extraction forces or vibrations, thus improving structural stability. The recessed groove 141 structure provides a space for the installation of the shield 24, making the overall layout more compact and avoiding interference with surrounding components. This further ensures that the contact springs on the shielding cover 24 maintain stable contact pressure with the mating connector, maintains long-term effective electromagnetic shielding and grounding continuity, thereby enhancing the connector's anti-interference capability and durability in harsh automotive environments.

[0026] The fixed connection part 13 is provided with a fixed mating groove 131. The groove wall of the fixed mating groove 131 is provided with a positioning keyway 132 and a positioning slot 133. The power supply fixing base 21 is provided with positioning strips 211 and positioning buckles 212 on both sides. The positioning buckles 212 are used to engage with the positioning slots 133, and the positioning strips 211 are used to engage with the positioning keyway 132, so as to fix one end of the power receiving element 22 to the fixed connection part 13. In this embodiment, the fixed connection part 13, by providing positioning keyways 132 and positioning slots 133 on its groove wall, forms a multi-directional constrained plug-in mating structure with the positioning strips 211 and positioning buckles 212 on the power supply fixing base 21. This design achieves precise positioning and reliable locking of the power connector 22 within the fixed connection portion 13: the cooperation between the positioning strip 211 and the positioning keyway 132 effectively restricts horizontal displacement and torsion, ensuring the alignment of the power connector 22; while the elastic engagement between the positioning buckle 212 and the positioning slot 133 provides vertical clamping force, preventing the power connector 22 from loosening under vibration or impact. This improves the stability and repeatability of the power connector 22 installation, reduces contact resistance fluctuations, and facilitates automated assembly, meeting the stringent requirements of new energy vehicle power connectors for high current-carrying reliability and long-term mechanical stability.

[0027] The power supply mounting base 21 consists of two mating fixing structural members 213. The two fixing structural members 213 are provided with clamping and fixing grooves to clamp and fix one end of the power receiving element 22. Each fixing structural member 213 is provided with a locking pin 2131, and the power receiving element 22 is provided with a locking slot. The locking pin 2131 is inserted into the locking slot to fix the power receiving element 22. One end of the power receiving element 22 is connected to the power receiving clamping element 23, and the other end is provided with a wiring portion 42, which is provided with a wiring ring. In this embodiment, the power supply mounting base 21 adopts a split design, consisting of two mating fixing structural members 213. The clamping and fixing grooves inside together form a surrounding clamping of the power receiving element 22, providing uniform clamping force and stable mechanical fixation, effectively preventing poor contact caused by vibration. The engagement of the locking pin 2131 with the locking slot further enhances axial locking, preventing longitudinal movement of the electrical connection element 22 and improving connection reliability. One end of the electrical connection element 22 achieves electrical connection via the electrical clamping element 23, while the other end's wiring portion 42 features a wiring ring for secure ring-shaped crimping with external cables, reducing contact resistance and ensuring the stability and efficiency of high-current transmission. The overall design is compact and easy to assemble, meeting the dual requirements of electrical performance and mechanical strength for high-voltage, high-current connectors in new energy vehicles.

[0028] The power-connecting clamping element 23 consists of multiple mutually mirrored S-shaped terminals arranged vertically in a continuous sequence. The socket signal assembly 3 includes a signal mounting base 31 and a first signal terminal 32. Mounting latches 311 are provided on both sides of the signal mounting base 31, and mounting slots are provided on both sides of the first signal slot 161. The mounting slots are used to engage with the mounting latches 311 to fix the terminal within the first signal slot 161. The first signal terminal 32 is disposed within the signal mounting base 31. In this embodiment, the power-connecting clamping element 23 employs a structure of multiple mutually mirrored and vertically arranged S-shaped terminals, effectively increasing the contact area and number of contact points with the power-connecting element 22, providing multi-path parallel current transmission capability, significantly reducing contact resistance and temperature rise, and improving current-carrying performance and heat dissipation efficiency. The socket signal assembly 3 achieves precise locking and fixing through the tight engagement of the mounting latches 311 on both sides of the signal mounting base 31 with the mounting slots within the first signal slot 161, preventing misalignment or loosening of the signal terminal during insertion and removal, and ensuring the stability of signal transmission. The first signal terminal 32 is integrated into the signal mounting base 31, which has a compact structure and reliable insulation, effectively preventing electromagnetic interference between the power supply and signal lines, and meeting the high reliability requirements of new energy vehicle connectors for high power transmission and high-speed signal synchronous integration.

[0029] See Figures 9-14As shown, the plug housing 4 is provided with a mating slot 45 on the outside of the plug part 41. A connecting step 451 is provided between the mating slot 45 and the plug part 41. The plug end cap 5 is provided on the connecting step 451. A plug sealing ring 452 is provided on the outer periphery of the connecting step 451, and the sealing lip of the plug sealing ring 452 faces the groove wall of the mating slot 45. The plug housing 4 is provided with two sets of mating cavities 43 and wiring cavities 44 arranged side by side to connect the positive and negative power supplies. A partition plate 431 is provided between the two sets of mating cavities 43 and wiring cavities 44 for separation. A signal fixing groove 432 is provided on the partition plate 431. The second signal terminal 52 is provided at one end of the second signal terminal and extends to the signal fixing groove 432 for wiring of the second signal terminal 52. In this embodiment, the plug housing 4, by providing a mating slot 45 and a connecting step 451 on the outside of the plug portion 41, and configuring a mating sealing ring 452, ensures that the sealing outer lip tightly fits against the groove wall of the mating slot 45, forming multiple radial sealing barriers. This effectively prevents the intrusion of contaminants such as moisture and dust, significantly improving the protection level of the connector and meeting the sealing requirements under harsh operating conditions of new energy vehicles. The plug housing 4 is provided with two sets of independent mating cavities 43 and wiring cavities 44 arranged in parallel, and physically isolated by a partition plate 431, achieving complete isolation of the positive and negative power supplies, avoiding the risk of short circuits, and enhancing insulation strength and electrical safety. The partition plate 431 integrates a signal fixing slot 432, allowing the second signal terminal 52 to be stably fixed and extended into the slot for wiring. This achieves an integrated layout of power supply and signal lines, resulting in a compact structure, reducing external interference, and ensuring the synchronous reliability of high-voltage, high-current transmission and signal communication. The overall design balances high performance, high safety, and space efficiency.

[0030] Multiple assembly positioning slots 433 are provided in both the insertion cavity 43 and the wiring cavity 44. The plug shielding shell 6 is provided with an external assembly protrusion 61 and a covering fastener 62. The external assembly protrusion 61 is used to cooperate with the assembly positioning slots 433. A covering fastener groove is provided at the port of the front fixing seat 71. The covering fastener 62 is fastened to the covering fastener groove so that the plug shielding shell 6 covers the outside of the fixing bracket. In this embodiment, by providing multiple assembly positioning slots 433 in the insertion cavity 43 and the wiring cavity 44 of the plug shell 4, and precisely cooperating with the external assembly protrusion 61 of the plug shielding shell 6, the rapid and accurate positioning and mechanical locking of the shielding shell are achieved, effectively preventing assembly misalignment and loosening, and improving the overall structural stability. The plug shielding shell 6 is tightly fastened to the cover groove at the front fixing seat 71 port via the cover fastening member 62, forming a full-circumferential cover shielding structure. This significantly enhances electromagnetic compatibility, suppresses the radiation and intrusion of high-frequency electromagnetic interference, and ensures the stable operation of the high-voltage system of new energy vehicles in complex electromagnetic environments. The integrated shielding design simultaneously considers mechanical protection and electrical shielding effectiveness, avoiding signal transmission interference from power lines and improving the safety and reliability of the connector in high-voltage and high-current scenarios.

[0031] The front-end fixing seat 71 has connecting buckles 711 on both sides, and the rear-end fixing seat 72 has connecting slots 721 on both sides. The connecting slots 721 are used to engage with the connecting buckles 711, so that the front-end fixing seat 71 and the rear-end fixing seat 72 are engaged. The front-end fixing seat 71 has a front-end fixing slot 712, and the rear-end fixing seat 72 has a rear-end fixing slot 722. The front-end fixing slot 712 and the rear-end fixing slot 722 are opposite to each other. One end of the front-end fixing slot 712 extends to the I-shaped bracket 74. One end of the plug conductive piece 81 is inserted into the front-end fixing slot 712, and the rear-end fixing slot 722 is used to fix the rear side of the plug conductive piece 81. In this embodiment, the front-end fixing seat 71 and the rear-end fixing seat 72 achieve quick and precise engagement through the cooperation of the connecting buckles 711 and the connecting slots 721, which greatly simplifies the assembly process, improves production efficiency, and ensures a tight connection between the front and rear structures and overall mechanical strength. The relative arrangement of the front fixing slot 712 and the rear fixing slot 722, in conjunction with the extension of the I-shaped bracket 74, forms a multi-point clamping and fixing system for the conductive piece 81 of the plug. This effectively limits the displacement and loosening of the conductive piece under vibration conditions, enhancing the long-term stability of the electrical connection. It achieves reliable constraint of the conductive piece from front insertion to rear fixing, reducing contact resistance and avoiding the risk of overheating or arcing due to micro-movements. This meets the stringent requirements of new energy vehicle connectors for high-reliability power transmission in high-vibration environments.

[0032] A first protrusion 713 is provided on the front fixing slot 712, and a second protrusion 723 is provided on the rear fixing slot 722. A first groove 811 and a second groove 812 are respectively provided on the front and rear sides of the plug conductive piece 81. The first groove 811 is used to cooperate with the first protrusion 713, and the second groove 812 is used to cooperate with the second protrusion 723 to fix the plug conductive piece 81. The plug conductive piece 81 includes a conductive contact part 813, a bent part 814, and a conductive connection part 815 connected in sequence. The conductive contact part 813 is provided on the front fixing slot 712, the bent part 814 is S-shaped, and the conductive connection part 815 extends toward the rear fixing assembly 73 and is used to connect the conductive connection wire 82. In this embodiment, a first protrusion 713 and a second protrusion 723 are respectively provided on the front and rear fixing slots 722, and a first groove 811 and a second groove 812 are precisely stamped at the corresponding positions on the plug conductive piece 81. Utilizing the interlocking structure of the protrusions and grooves, precise mechanical interlocking and anti-retraction fixing of the conductive piece in the three-dimensional direction are achieved, completely avoiding axial movement and circumferential rotation of the conductive piece under vehicle vibration conditions, greatly improving the long-term stability and reliability of the electrical connection. The plug conductive piece 81 adopts a segmented design. Its conductive contact portion 813 ensures low-resistance contact with the mating terminals, and the S-shaped bend 814 effectively absorbs and buffers mechanical stress and vibration energy from the wire harness direction, preventing stress transmission to the conductive contact area and reducing the risk of terminal fatigue fracture. The conductive connection portion 815 extends directly to the tail connection area, shortening the current path and reducing energy consumption and heat generation.

[0033] The tail fixing assembly 73 includes a shielding tail shell 731, a fixing ring 732, a sealing element 733, and a fixing tail cover 734 connected sequentially from top to bottom. The shielding tail shell 731 is located at the bottom of the fixing bracket and is connected to the plug shielding shell 6. The fixing ring 732 is used to fix the conductive connecting wire 82 to the shielding tail shell 731. The sealing element 733 is used to fix the conductive connecting wire 82 in the wiring cavity 44. The fixing tail cover 734 is used to fix the sealing element 733 in the wiring cavity 44. The sealing element 733 includes a sealing top cover 7331, a sealing element 7332, and a sealing bracket 7333 connected sequentially from top to bottom. One end of the sealing bracket 7333 is provided with a clamping sleeve 7334. The fixing tail cover 734 is used to fix the clamping sleeve 7334 so that the clamping sleeve 7334 clamps and seals the conductive connecting wire 82. In this embodiment, the tail fixing assembly 73 adopts a multi-layer modular sealing and fixing structure. Through the sequential and coordinated assembly of the shielding tail shell 731, fixing ring 732, sealing element 733, and fixing tail cover 734, a reliable all-round fixing and efficient sealing of the conductive connection wire 82 is achieved. The shielding tail shell 731 is connected to the plug shielding shell 6 to ensure electromagnetic shielding, effectively suppressing electromagnetic interference leakage or intrusion from the cable interface and improving the EMC performance of the entire vehicle. The sealing element 733 adopts a segmented design. The sealing cover 7331, sealing element 7332, and sealing bracket 7333 together form a multi-level sealing barrier. Combined with the pressing action of the fixing tail cover 734 on the clamping sleeve 7334, the clamping sleeve 7334 undergoes radial contraction, thereby forming a uniform circumferential tight seal on the conductive connection wire 82. This significantly improves the protection level of the connector and can effectively prevent moisture, dust, and other contaminants from entering the wiring cavity 44, ensuring the long-term safe operation of the new energy high-voltage connector in harsh environments such as humidity and dust.

[0034] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A new energy power connector assembly, characterized in that: It includes a socket connector and a plug connector, wherein the socket connector and the plug connector are interlocked. The socket connector includes a socket housing, a socket power assembly, and a socket signal assembly. The socket housing includes a socket panel, a mating plug, and a fixed connection part. The mating plug and the fixed connection part are respectively disposed on both sides of the socket panel. The mating plug has a socket connection cavity, and a power plug and a signal plug are disposed within the socket connection cavity. The power plug has a power slot, and the signal plug has a first signal slot. The socket power assembly is disposed on the power slot, and the socket signal assembly is disposed on the first signal slot. One end of both the power slot and the first signal slot is connected to the fixed connection part. The plug connector includes a plug housing, a plug end cap, a plug shielding housing, a power connection fixing assembly, and a plug power connection assembly. The plug housing has a plug portion and a wiring portion. The plug portion has a mating cavity, and the wiring portion has a wiring cavity, one end of which communicates with the mating cavity. The plug end cap is located at the port of the mating cavity. The plug shielding housing covers the outside of the power connection fixing assembly to fix the power connection fixing assembly in the mating cavity. The power connection fixing assembly includes a front fixing seat, a rear fixing seat, and a tail fixing assembly. The front fixing seat and the rear fixing seat are mating... The components are assembled to form a fixed bracket. The tail fixing component is disposed in the wiring cavity. The plug connection component includes a plug conductive piece and a conductive connecting wire. The plug conductive piece is disposed in the fixed bracket. One end of the conductive connecting wire is connected to the plug conductive piece, and the other end is fixed by the tail fixing component and extends to the outside of the wiring cavity. The front fixing seat is provided with an I-shaped bracket, which is used to fix the plug conductive piece to form mating slots on both sides of the fixed bracket. The plug end cover is provided with a second signal slot, and a second signal terminal is disposed in the second signal slot. The mating plug is used to insert into the mating cavity so that the power plug is connected to the plug conductive plate and the signal plug is connected to the second signal terminal.

2. The new energy power connector assembly according to claim 1, characterized in that: The socket power assembly includes a power mounting base, a power receiving element, a power receiving clamping element, and a shielding cover. The shielding cover is disposed outside the power plug. The power receiving clamping element is disposed at the end of the power receiving element. The power mounting base is used to fix the power receiving element to the power socket. The end of the power plug is provided with a mating slot. Abutment baffles are provided on both sides of the mating slot. One end of the power receiving clamping element abuts against the abutment baffles. The power receiving clamping element is provided with a contact clamping groove facing the mating slot.

3. The new energy power connector assembly according to claim 2, characterized in that: The power plug has an external cover groove, with a fastening groove on one side and an elastic positioning groove on the other side. One end of the shield has a fixing buckle, and the other end has a first contact spring. The fixing buckle is used to fasten into the fastening groove. One end of the first contact spring extends into the elastic positioning groove and has a contact protrusion, one end of which protrusion protrudes outside the elastic positioning groove. The end of the fastening groove has a fastening slot, and the fixing buckle has a fastening hook for fastening into the fastening slot. Second contact springs are provided on both sides of the shield, and these second contact springs are used for conductive connection when the connector is plugged in. Multiple fastening grooves and elastic positioning grooves are provided.

4. The new energy power connector assembly according to claim 3, characterized in that: The socket connection cavity is provided with a recessed groove on the outer periphery of the power plug. A positioning step is provided on the recessed groove. One end of the elastic positioning groove is connected to the recessed groove. The positioning step is used for positioning the end face of the shielding cover. The fixed connection part is provided with a fixed mating groove, and the groove wall is provided with a positioning keyway and a positioning slot. The power supply fixing base is provided with positioning strips and positioning buckles on both sides. The positioning buckles are used to cooperate with the positioning slots, and the positioning strips are used to cooperate with the positioning keyway to fix one end of the power connection component to the fixed connection part.

5. The new energy power connector assembly according to claim 2, characterized in that: The power supply mounting base consists of two mating fixing structural components, and the two fixing structural components are provided with clamping and fixing grooves, which are used to clamp and fix one end of the power-connecting component. The fixing structure is provided with a locking pin, and the power receiving element is provided with a locking slot. The locking pin is used to be inserted into the locking slot to fix the power receiving element. One end of the power receiving element is connected to the power receiving clamping element, and the other end is provided with a wiring part, and the wiring part is provided with a wiring ring.

6. The new energy power connector assembly according to claim 2, characterized in that: The power-connecting clamping element consists of multiple mutually mirrored S-shaped terminals, which are arranged vertically in a continuous manner. The socket signal assembly includes a signal mounting base and a first signal terminal. The signal mounting base has mounting buckles on both sides, and the first signal slot has mounting slots on both sides. The mounting slots are used to cooperate with the mounting buckles to fix the first signal slot. The first signal terminal is disposed in the signal mounting base.

7. The new energy power connector assembly according to claim 1, characterized in that: The plug housing is provided with a mating slot on the outside of the plug part. A connecting step is provided between the mating slot and the plug part. The plug end cap is provided on the connecting step. A plug sealing ring is provided on the outer periphery of the connecting step. The sealing lip of the plug sealing ring faces the groove wall of the mating slot. The plug housing has two sets of mating chambers and wiring chambers arranged side by side for corresponding positive and negative power supply connections; a partition plate is provided between the two sets of mating chambers and wiring chambers for separation; a signal fixing slot is provided on the partition plate, and the second signal terminal is provided at one end of the second signal extending to the signal fixing slot for wiring of the second signal terminal.

8. The new energy power connector assembly according to claim 1, characterized in that: Multiple assembly positioning slots are provided in both the plug cavity and the wiring cavity. The plug shielding shell is provided with an external assembly protrusion and a covering fastener. The external assembly protrusion is used to cooperate with the assembly positioning slot. A covering fastener slot is provided at the port of the front fixing seat. The covering fastener is fastened to the covering fastener slot so that the plug shielding shell covers the outside of the fixing bracket.

9. The new energy power connector assembly according to claim 1, characterized in that: The front mounting base has connecting buckles on both sides, and the rear mounting base has connecting slots on both sides. The connecting slots are used to engage with the connecting buckles, so that the front mounting base and the rear mounting base are engaged. The front mounting base has a front mounting slot, and the rear mounting base has a rear mounting slot. The front mounting slot and the rear mounting slot are opposite to each other. One end of the front mounting slot extends to the I-shaped bracket. One end of the plug conductive piece is inserted into the front mounting slot, and the rear mounting slot is used to fix the rear side of the plug conductive piece. A first protrusion is provided on the front fixing slot, and a second protrusion is provided on the rear fixing slot. A first groove and a second groove are respectively provided on the front and rear sides of the plug conductive piece. The first groove is used to cooperate with the first protrusion, and the second groove is used to cooperate with the second protrusion to fix the plug conductive piece. The plug conductive piece includes a conductive contact portion, a bent portion, and a conductive connecting portion connected in sequence. The conductive contact portion is disposed on the front fixing slot, the bent portion is S-shaped, and the conductive connecting portion extends toward the tail fixing assembly and is used to connect the conductive connecting wire.

10. The new energy power connector assembly according to claim 1, characterized in that: The tail fixing assembly includes a shielding tail shell, a fixing ring, a sealing element, and a fixing tail cover connected in sequence from top to bottom. The shielding tail shell is located at the bottom of the fixing bracket and is connected to the plug shielding shell. The fixing ring is used to fix the conductive connecting wire to the shielding tail shell. The sealing element is used to fix the conductive connecting wire to the wiring cavity. The fixing tail cover is used to fix the sealing element to the wiring cavity. The sealing element includes a sealing cover, a sealing element, and a sealing bracket connected sequentially from top to bottom. One end of the sealing bracket is provided with a clamping sleeve, and the fixed tail cover is used to fix the clamping sleeve so that the clamping sleeve clamps and seals the conductive connection wire.

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