A high-sealing new energy vehicle high-voltage connector

Abstract

The utility model relates to new energy automobile high pressure connector technical field especially relates to a kind of high sealing new energy automobile high pressure connector, including shell, electric contact pair and sealing element;Shell is provided with electrically conductive connection end and electrically conductive connection cavity, electric contact pair is set between electrically conductive connection end and electrically conductive connection cavity;Shell is provided with sealing groove corresponding to the outer periphery of electrically conductive connection cavity, and sealing element is set in sealing groove;Sealing element is provided with limit connector, and limit connector is used to limit sealing element to keep in sealing groove.The utility model forms limit structure by limit connector, sealing element and sealing groove, generates axial and radial constraint force, completely solves the problem that traditional sealing element is easy to fall off, limit structure offsets friction and inertia when plugging, keeps sealing element position stable, realizes high-frequency plugging resistance.Prevent interface failure caused by sealing element displacement, avoid electrically conductive connection cavity water seepage and electric leakage;Sealing element life is extended, replacement frequency is reduced, and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage connector technology for new energy vehicles, and in particular to a high-sealing high-voltage connector for new energy vehicles. Background Technology

[0002] As a core electrical interface, the high-voltage connector of new energy vehicles directly affects vehicle safety due to its sealing performance.

[0003] Traditional solutions often employ a silicone seal pressed into a sealing groove structure. However, this approach reveals significant drawbacks in practical use: the lack of an effective locking mechanism between the silicone material and the groove wall allows the seal to easily shift or even detach under high-frequency insertion and removal conditions due to friction and inertia. This problem not only poses a risk of seal failure and potential water leakage in high-pressure systems, but also significantly increases maintenance costs due to frequent seal replacements. Therefore, improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a high-sealing high-voltage connector for new energy vehicles. Through a limiting structure formed by a limiting connector, a seal, and a sealing groove, axial and radial constraint forces are generated, completely solving the problem of easy seal detachment in traditional designs. The limiting structure counteracts friction and inertia during insertion and removal, maintaining the seal's stable position and achieving resistance to high-frequency insertion and removal. It prevents interface failure caused by seal displacement, avoids water leakage and electrical current in the conductive connection cavity, extends seal life, reduces replacement frequency, and lowers maintenance costs.

[0005] To achieve the above objectives, this utility model provides a high-sealing high-voltage connector for new energy vehicles, comprising a housing, conductive contact pairs, and a sealing element. The housing is provided with a conductive connection end and a conductive connection cavity, and the conductive contact pair is disposed between the conductive connection end and the conductive connection cavity; The housing is provided with a sealing groove on the outer periphery corresponding to the conductive connection cavity, and the sealing element is disposed in the sealing groove and abuts against the inner wall of the sealing groove; The sealing element is provided with a limiting connector, which is used to restrict the sealing element to remain within the sealing groove.

[0006] Preferably, the conductive contact pair is provided with an anti-contact cap at one end of the conductive connection cavity, the anti-contact cap being used to prevent the conductive contact pair from being broken down by high voltage.

[0007] Preferably, the conductive contact pair includes a front conductive portion and a rear conductive portion, the front conductive portion is provided with a connecting portion, and the anti-contact cap is connected to the connecting portion; The connecting part is dovetail-shaped, and the anti-collision cap has a connecting groove inside, and the connecting part is engaged in the connecting groove; The front conductive part is provided with a connecting slot at one end near the connecting part, and both ends of the anti-touch cap are provided with snap-fit ​​parts, which are connected to the connecting slot.

[0008] Preferably, the connecting part is provided with a receiving hole, and a connecting post is provided in the connecting groove, the connecting post being connected to the receiving hole.

[0009] Preferably, a through groove is provided between the conductive connection end and the conductive connection cavity, and the front conductive part extends into the conductive connection cavity from the conductive connection end through the through groove; The rear conductive part is provided with a fixing hole, and a fixing post is provided in the through groove. The fixing post is connected to the fixing hole.

[0010] Preferably, the conductive connection end is provided with a fixing groove, and the rear conductive part is fixed in the fixing groove.

[0011] Preferably, the conductive connection end is provided with a conductive nut, which is fixed to the conductive connection end and connected to the rear conductive part.

[0012] Preferably, the conductive connection end is provided with a stop groove, one end of the conductive nut abuts against the inner wall of the stop groove, and the other end of the conductive nut abuts against the rear conductive part; The rear conductive part is provided with a conductive hole corresponding to the conductive nut.

[0013] Preferably, the sealing groove is provided with a sealing hole through it; The limiting connector includes a limiting member disposed within the sealing member and a limiting block disposed at the end of the limiting member; The limiting member is connected to the sealing hole, and the limiting block abuts against the side of the sealing hole opposite to the sealing member.

[0014] Preferably, a threaded sleeve is provided in the sealing groove, and the sealing element is provided with a clearance hole corresponding to the threaded sleeve.

[0015] The beneficial effects of this utility model are as follows: By forming a limiting structure through the limiting connector, the seal, and the sealing groove, axial and radial constraint forces are generated, completely solving the problem of easy detachment of traditional seals. The limiting structure counteracts the friction and inertia during insertion and removal, keeping the seal position stable and achieving resistance to high-frequency insertion and removal. It prevents interface failure caused by seal displacement, avoids water leakage and electric current in the conductive connection cavity, extends the life of the seal, reduces the frequency of replacement, and lowers maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the exploded structure of this utility model.

[0017] Figure 2This is a cross-sectional structural diagram of the present invention.

[0018] The reference numerals in the figures include: 1. Housing; 11. Conductive connection end; 111. Fixing groove; 112. Conductive nut; 113. Slot; 12. Conductive connection cavity; 13. Sealing groove; 131. Sealing hole; 132. Screw sleeve; 14. Through groove; 141. Fixing post; 2. Conductive contact pair; 21. Front conductive part; 211. Connecting part; 2111. Receiving hole; 212. Connecting slot; 22. Rear conductive part; 221. Fixing hole; 222. Conductive hole; 3. Sealing element; 31. Clearance hole; 4. Limiting connector; 41. Limiting component; 42. Limiting block; 5. Anti-contact cap; 51. Connecting groove; 511. Connecting post; 52. Snap-fit ​​part. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown, this utility model discloses a high-sealing high-voltage connector for new energy vehicles, comprising a housing 1, conductive contact pairs 2, and a sealing element 3.

[0021] The housing 1 is provided with a conductive connection end 11 and a conductive connection cavity 12. The conductive connection end 11 is used for the fixed connection of external cables, and the conductive connection cavity 12 provides internal space to accommodate the insertion of mating terminals, forming a split circuit channel structure. This achieves physical isolation and directional conduction of high-voltage circuits, avoids the risk of short circuits, and provides an installation foundation for the sealed structure.

[0022] The conductive contact pair 2 is disposed between the conductive connection end 11 and the conductive connection cavity 12; the conductive contact pair 2 serves as a bridge for the conductive path, enabling continuous conduction of the circuits at both ends between the conductive connection end 11 and the conductive connection cavity 12.

[0023] The housing 1 has a sealing groove 13 on its outer periphery corresponding to the conductive connection cavity 12. The sealing element 3 is disposed within the sealing groove 13 and abuts against the inner wall of the sealing groove 13. The sealing groove 13 is circumferentially formed around the outer periphery of the connection cavity, providing a geometrically closed-loop groove to accommodate the sealing element 3. A standardized sealing interface is constructed, with the sealing element 3 abutting against the inner wall of the sealing groove 13. The groove wall of the sealing groove 13 applies uniform radial pressure to the sealing element 3. When the connector is connected to an external connector, the sealing element 3 prevents moisture / dust from entering the conductive connection cavity 12.

[0024] The sealing element 3 is provided with a limiting connector 4, which is used to restrict the sealing element 3 to remain within the sealing groove 13. The limiting connector 4, the sealing element 3, and the sealing groove 13 form a limiting structure, generating axial and radial constraint forces, completely solving the problem of easy detachment of traditional sealing elements 3. The limiting structure counteracts the friction and inertia during insertion and removal, maintaining the stable position of the sealing element 3 and achieving resistance to high-frequency insertion and removal. This prevents interface failure caused by displacement of the sealing element 3, avoids water leakage and electrical leakage in the conductive connection cavity 12, extends the lifespan of the sealing element 3, reduces replacement frequency, and lowers maintenance costs.

[0025] In use, when the male connector is inserted into the conductive connection cavity 12, the seal 3 is squeezed by the cavity wall and undergoes elastic deformation, generating a radial sealing force, which initially blocks the path of moisture intrusion. The seal 3 abuts against the inner wall of the sealing groove 13, and the sealing groove 13 generates a radial constraint force on the seal 3, while the limiting connector 4 generates an axial constraint force on the seal 3. When the male connector is pulled out, the limiting connector 4 and the sealing groove 13 cooperate to ensure that the seal 3 is not pulled out.

[0026] like Figure 1 As shown, in this embodiment, the conductive contact pair 2 is provided with an anti-touch cap 5 at one end of the conductive connection cavity 12. The anti-touch cap 5 is used to prevent the conductive contact pair 2 from being broken down by high voltage.

[0027] The protective cap 5 is made of high dielectric strength insulating material, such as PEEK or ceramic-filled nylon, and is injection molded to completely cover the exposed ends of the conductive contact pair 2, shortening the creepage distance to <0.1mm. It completely blocks the risk of high-voltage breakdown, eliminating air discharge paths during insertion / removal or incomplete insertion, and increasing the withstand voltage rating to >3kV; it also prevents arc discharge caused by metal burrs or moisture condensation, protecting high-voltage system electronic components and preventing high-voltage breakdown of the conductive contact pair 2.

[0028] like Figure 1 As shown, the conductive contact pair 2 in this embodiment includes a front conductive part 21 and a rear conductive part 22. The front conductive part 21 is provided with a connecting part 211, and the anti-contact cap 5 is connected to the connecting part 211, so that the anti-contact cap 5 is connected to the conductive contact pair 2.

[0029] The connecting part 211 is dovetail-shaped, and the anti-touch cap 5 has a connecting groove 51 inside. The connecting part 211 is locked in the connecting groove 51. The connecting part 211 and the connecting groove 51 form a sloping self-locking structure, so as to realize the interference lock between the connecting part 211 and the connecting groove 51 of the anti-touch cap 5.

[0030] The front conductive part 21 has a connecting slot 212 at one end near the connecting part 211, and both ends of the anti-contact cap 5 have snap-fit ​​parts 52, which are connected to the connecting slot 212. This ensures that both ends of the anti-contact cap 5 are accommodated within the connecting slot 212, making it less likely for the anti-contact cap 5 to separate from the connecting part 211 when the conductive contact pair 2 is inserted or removed.

[0031] like Figure 1 As shown, in this embodiment, the connecting portion 211 is provided with a receiving hole 2111, and a connecting post 511 is provided in the connecting groove 51. The connecting post 511 is connected to the receiving hole 2111. The connecting post 511 and the receiving hole 2111 are press-fitted to prevent the anti-contact cap 5 from easily separating from the connecting portion 211.

[0032] like Figure 2 As shown, in this embodiment, a through groove 14 is provided between the conductive connection end 11 and the conductive connection cavity 12. The front conductive part 21 extends from the conductive connection end 11 into the conductive connection cavity 12 through the through groove 14. Specifically, the through groove 14 is a rectangular through groove 14 that connects the conductive connection end 11 and the conductive connection cavity 12, so that the front conductive part 21 crosses the partition of the housing 1 through the through groove 14 to achieve axial rigid extension.

[0033] The rear conductive part 22 is provided with a fixing hole 221, and a fixing post 141 is provided in the through groove 14. The fixing post 141 is connected to the fixing hole 221. Specifically, the fixing post 141 is inserted into the fixing hole 221, so that the rear conductive part 22 is fixed to the housing 1.

[0034] like Figure 1 and Figure 2 As shown, in this embodiment, the conductive connection end 11 is provided with a fixing groove 111, and the rear conductive part 22 is fixed in the fixing groove 111. The rear conductive part 22 is positioned and fixed in the groove, forming a stable physical connection, restricting the displacement of the rear conductive part 22, and avoiding loosening of the contact due to vibration or external force.

[0035] like Figure 2 As shown, in this embodiment, the conductive connection end 11 is provided with a conductive nut 112, which is fixed to the conductive connection end 11 and connected to the rear conductive part 22. By integrating the conductive nut 112 into the conductive connection end 11, the mechanical engagement of the thread structure and the electrical conductivity of the conductive material are combined to integrate the mechanical fixing and electrical connection functions. The conductive nut 112 is typically made of highly conductive metals such as copper or aluminum and is fixed to the conductive connection end 11 by pressing, welding, or integral molding processes.

[0036] The conductive nut 112 and the rear conductive part 22 use surface contact instead of point contact, reducing contact resistance by 30%-50% and minimizing energy loss. The standardized nut interface supports quick assembly and disassembly, allowing connection to be completed without special tools, reducing single-piece operation time to within 5 seconds.

[0037] like Figure 2 As shown, the conductive connection end 11 in this embodiment is provided with a stop groove 113, one end of the conductive nut 112 abuts against the inner wall of the stop groove 113, and the other end of the conductive nut 112 abuts against the rear conductive part 22; The mechanical limiting structure of the stop groove 113 fixes one end of the conductive nut 112 inside the conductive connection end 11. The rigid support of the inner wall of the stop groove 113 constrains the axial displacement of the nut, while the friction of the side wall of the stop groove 113 prevents the nut from rotating and loosening. The stop groove 113 structure reduces the displacement of the nut under vibration, significantly reducing the risk of contact loosening. The embedded design of the stop groove 113 reduces the exposed part of the nut, shrinking the overall size and making it suitable for high-density wiring scenarios.

[0038] The rear conductive part 22 is provided with a conductive hole 222 corresponding to the conductive nut 112. The conductive nut 112 forms a surface contact with the conductive hole 222 of the rear conductive part 22 through a thread or interference fit. The rigid structure of the nut disperses the contact pressure, and at the same time, the hole wall of the conductive hole 222 increases the contact area and reduces the local resistance.

[0039] like Figure 1 As shown, the sealing groove 13 in this embodiment is provided with a sealing hole 131 through it.

[0040] The limiting connector 4 includes a limiting member 41 disposed within the sealing member 3 and a limiting block 42 disposed at the end of the limiting member 41.

[0041] The limiting member 41 is connected to the sealing hole 131, and the limiting block 42 abuts against the side of the sealing hole 131 away from the sealing member 3.

[0042] By providing a through-hole sealing hole 131 in the sealing groove 13, an integrated channel for mechanical connection and sealing functions is formed. The diameter of the sealing hole 131 matches the outer diameter of the limiting member 41, and the rigid constraint of the hole wall restricts the radial displacement of the limiting member 41, while providing an installation reference for the seal 3.

[0043] The limiting member 41 serves as the connection medium between the sealing member 3 and the sealing hole 131, and forms an axial mechanical stop through the limiting block 42 at its end. The limiting block 42 is larger than the diameter of the sealing hole 131, and uses the elastic deformation of the material to generate a pre-tightening force to ensure a stable connection between the limiting member 41 and the sealing hole 131.

[0044] The mechanical engagement of the limiting member 41 with the sealing hole 131 and the axial contact between the limiting block 42 and the end face of the sealing hole 131 form a dual locking structure of radial constraint and axial stop, while maintaining the elastic sealing function of the sealing member 3.

[0045] like Figure 1 As shown, in this embodiment, a threaded sleeve 132 is provided in the sealing groove 13, and the sealing element 3 is provided with an avoidance hole 31 corresponding to the threaded sleeve 132.

[0046] By pre-embedding a metal threaded sleeve 132, such as copper or stainless steel, in the sealing groove 13, the high strength and wear-resistant properties of the threaded sleeve 132 provide a stable mechanical connection base for the housing 1.

[0047] The sealing element 3, such as a rubber O-ring or a silicone gasket, is formed by stamping or molding to create a clearance hole 31 that matches the outer diameter of the threaded sleeve 132, so that the threaded sleeve 132 can penetrate the sealing element 3 without damaging the sealing structure of the sealing element 3.

[0048] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A high-sealing high-voltage connector for new energy vehicles, characterized in that, It includes a housing (1), conductive contact pairs (2), and a seal (3); The housing (1) is provided with a conductive connection end (11) and a conductive connection cavity (12), and the conductive contact pair (2) is disposed between the conductive connection end (11) and the conductive connection cavity (12); The housing (1) is provided with a sealing groove (13) on the outer periphery of the conductive connection cavity (12), and the sealing element (3) is disposed in the sealing groove (13) and abuts against the inner wall of the sealing groove (13). The sealing element (3) is provided with a limiting connector (4), which is used to limit the sealing element (3) to remain within the sealing groove (13).

2. The high-sealing high-voltage connector for new energy vehicles according to claim 1, characterized in that, The conductive contact pair (2) is provided with a protective cap (5) at one end of the conductive connection cavity (12). The protective cap (5) is used to prevent the conductive contact pair (2) from being broken down by high voltage.

3. The high-sealing high-voltage connector for new energy vehicles according to claim 2, characterized in that, The conductive contact pair (2) includes a front conductive part (21) and a rear conductive part (22). The front conductive part (21) is provided with a connecting part (211), and the anti-contact cap (5) is connected to the connecting part (211). The connecting part (211) is dovetail shaped, and the anti-touch cap (5) is provided with a connecting groove (51) inside, and the connecting part (211) is engaged in the connecting groove (51); The front conductive part (21) is provided with a connecting slot (212) at one end near the connecting part (211), and both ends of the anti-touch cap (5) are provided with snap-fit ​​parts (52), which are connected to the connecting slot (212).

4. The high-sealing high-voltage connector for new energy vehicles according to claim 3, characterized in that, The connecting part (211) is provided with a receiving hole (2111), and a connecting post (511) is provided in the connecting groove (51), and the connecting post (511) is connected to the receiving hole (2111).

5. A high-sealing high-voltage connector for new energy vehicles according to claim 3, characterized in that, A through groove (14) is provided between the conductive connection end (11) and the conductive connection cavity (12), and the front conductive part (21) extends from the conductive connection end (11) into the conductive connection cavity (12) through the through groove (14); The rear conductive part (22) is provided with a fixing hole (221), and a fixing post (141) is provided in the through groove (14), and the fixing post (141) is connected to the fixing hole (221).

6. A high-sealing high-voltage connector for new energy vehicles according to claim 3, characterized in that, The conductive connection end (11) is provided with a fixing groove (111), and the rear conductive part (22) is fixed in the fixing groove (111).

7. A high-sealing high-voltage connector for new energy vehicles according to claim 6, characterized in that, The conductive connection end (11) is provided with a conductive nut (112), which is fixed to the conductive connection end (11) and connected to the rear conductive part (22).

8. A high-sealing high-voltage connector for new energy vehicles according to claim 7, characterized in that, The conductive connection end (11) is provided with a stop groove (113), one end of the conductive nut (112) abuts against the inner wall of the stop groove (113), and the other end of the conductive nut (112) abuts against the rear conductive part (22); The rear conductive part (22) is provided with a conductive hole (222) corresponding to the conductive nut (112).

9. A high-sealing high-voltage connector for new energy vehicles according to claim 1, characterized in that, The sealing groove (13) is provided with a sealing hole (131) through it. The limiting connector (4) includes a limiting member (41) disposed in the sealing member (3) and a limiting block (42) disposed at the end of the limiting member (41). The limiting member (41) is connected to the sealing hole (131), and the limiting block (42) abuts against the side of the sealing hole (131) away from the sealing member (3).

10. A high-sealing high-voltage connector for new energy vehicles according to claim 1, characterized in that, A threaded sleeve (132) is provided in the sealing groove (13), and an clearance hole (31) is provided in the sealing element (3) corresponding to the threaded sleeve (132).

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