High-voltage automobile connector assembly

Abstract

The utility model provides a high-voltage automobile connector assembly, which comprises a male end connector and a female end connector, the male end connector and the female end connector are electrically connected through plugging coupling, the female end connector comprises a shell sleeve, a female terminal, a female rubber core and a rear cover, the rear end of the female terminal is connected with a wire rod, the female terminal is plugged in the female rubber core, and the rear cover is connected with the shell sleeve. The wire rod extends to the outer side of the female rubber core, the female rubber core is inserted into the shell sleeve through the front end of the shell sleeve, the rear cover is clamped at the rear end of the shell sleeve and is in sleeve connection fit with the wire rod, and a first sealing ring which is in interference sleeve connection with the wire rod is further arranged between the rear cover and the shell sleeve. Aiming at the defects in the prior art, the utility model provides the high-voltage connector assembly which is more convenient to install and has a good sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a high-voltage automotive connector assembly. Background Technology

[0002] A connector is an electromechanical component that uses a mechanical structure to connect or disconnect circuits. Widely used in automotive, communications, and industrial automation, its core function is to establish a stable current or signal transmission path between different devices, components, or cables. It also provides electrical conductivity, mechanical fixation, and environmental protection. Specifically, in new energy vehicles, high-voltage connectors are core components of the vehicle's high-voltage system. They are primarily used for power transmission between high-voltage components such as battery packs, motor controllers, on-board chargers, and high-voltage power distribution units. Their performance directly determines the safety, reliability, and electromagnetic compatibility of the high-voltage system, and is a key differentiator for new energy vehicles. As a key component of traditional fuel vehicles, high-voltage automotive connector assemblies in existing technologies typically include a male connector and a female connector that form an electrical connection through plug-in coupling. The female connector's core and housing are mostly assembled using interference fit or threaded tightening. Interference fit requires specialized tooling equipment and has strict requirements for controlling the assembly force, while threaded tightening is cumbersome, requiring tightening one turn at a time, which significantly increases assembly time on the production line and is difficult to adapt to the needs of rapid assembly of high-voltage components in the vehicle. Furthermore, the sealing ring only makes simple contact with the inner wall of the rear cover or the surface of the wire, resulting in poor sealing performance. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a high-voltage connector assembly that is easier to install and has a better sealing effect.

[0004] To achieve the above objectives, this utility model provides a high-voltage automotive connector assembly, including a male connector and a female connector that are electrically connected by plug-in coupling. The female connector includes a housing, a female terminal, a female core, and a rear cover. A wire is connected to the rear end of the female terminal, which is inserted into the female core, and the wire extends to the outside of the female core. The female core is inserted into the housing through the front end of the housing. The rear cover is snapped onto the rear end of the housing and forms a sleeve fit with the wire. A first sealing ring is also provided between the rear cover and the housing to allow interference fit of the wire.

[0005] The advantages of the above technical solution are as follows: By adopting an assembly structure in which the female core is inserted from the front end of the housing, compared with the traditional interference fit or threaded tightening method, no special tooling or complicated operation is required, which greatly improves the ease of assembly of the female core and the housing, reduces assembly errors and labor costs. At the same time, the rear cover adopts a snap-fit ​​connection with the rear end of the housing, and the first sealing ring set between the rear cover and the housing forms an interference fit with the wire. This not only realizes the quick installation of the rear cover, but also allows the sealing ring to fit tightly against the wire and the inner wall of the rear cover through interference fit, which effectively avoids the problem of sealing ring displacement or gap under vehicle vibration, high and low temperature cycle conditions, and ensures the sealing effect.

[0006] The present invention can be further configured as follows: a cylinder platform and a shielding sleeve are provided on the shell, a ring sleeve is provided on the wire, the cylinder platform is connected to the outside of the shell, the shielding sleeve is disposed between the shell and the mother core, and the two ends of the shielding sleeve are respectively connected to the cylinder platform and the ring sleeve.

[0007] By further configuring the connector, a cylinder platform is installed on the outside of the housing, a shielding sleeve is installed between the housing and the core, and the wire is equipped with a ring sleeve with both ends of the shielding sleeve connected to the cylinder platform and the ring sleeve respectively. The cylinder platform provides a stable mounting reference for the connector as a whole, which facilitates precise docking and fixing with the vehicle's high-voltage equipment. This improves the positioning accuracy and overall structural stability of the connector assembly. The shielding sleeve, the cylinder platform, and the wire ring sleeve form a complete shielded conduction link, which can achieve electromagnetic shielding and effectively reduce the impact of electromagnetic interference on the vehicle's electronic system during high-voltage transmission, ensuring signal transmission stability and the vehicle's electromagnetic compatibility.

[0008] The present invention can be further configured such that: the shell is provided with ears extending to both sides, the cylinder platform is fitted on the outside of the shell and abuts against the ears, and the ears are provided with mounting holes for bolts to pass through.

[0009] By further designing the housing with ears extending to both sides, and using a structure where the cylinder platform is fitted onto the outside of the housing and abuts against the ears, and bolt mounting holes are provided in the ears, the misalignment and wobbling of the cylinder platform during assembly are prevented, ensuring the coaxiality of the cylinder platform and the housing and improving the stability of the product. The bolt mounting holes on the ears can be directly connected and positioned to the cylinder platform, facilitating installation.

[0010] The present invention can be further configured such that: a groove is provided on the shell sleeve, the groove surrounds the shell sleeve near the ear, the cylinder platform is fitted on the shell sleeve to cover the groove, and a second sealing ring is provided in the groove.

[0011] By further designing the casing, a circumferential groove is provided near the ear, and a second sealing ring is built in. At the same time, the cylinder platform fitted on the outside of the casing covers the groove. The circumferential groove near the ear allows the second sealing ring to better cooperate with the first sealing ring. Furthermore, the cylinder platform covers the groove while pressing it tightly against the second sealing ring to ensure a sealing effect.

[0012] The present invention can be further configured such that: the shielding sleeve is provided with a plurality of elastically swinging spring pieces, and the inner wall of the shell and the outer wall of the mother core are respectively provided with a first groove and a second groove for the spring pieces to elastically return to their original positions.

[0013] By further designing the shielding sleeve with several elastically swinging spring pieces, and by creating a first groove and a second groove on the inner wall of the shell and the outer wall of the core respectively, the spring pieces can be elastically reset and embedded. The cooperation between the elastic spring pieces and the first and second grooves can achieve the limiting fit of the shielding sleeve between the shell and the core, preventing the shielding sleeve from shifting or loosening due to vehicle vibration. This ensures that the shielding sleeve maintains reliable contact and conduction with the shell and the core, guaranteeing the electromagnetic shielding effect. At the same time, during assembly, the shielding sleeve only needs to be inserted synchronously with the core to complete the positioning, making installation convenient.

[0014] The present invention can be further configured such that: the back cover is sleeved on the shell, the shell is provided with a plurality of locking blocks arranged along its circumference, and the back cover is provided with a plurality of elastic swinging buckles, and the buckles and locking blocks are engaged with each other.

[0015] By further designing the back cover to fit onto the housing, and using circumferential locking blocks on the housing and elastic buckles on the back cover to form a locking fit between the two, the installation of both is facilitated. The circumferentially arranged locking blocks and elastic buckles form a multi-point even locking fit, which also ensures the stability of the connection. Attached Figure Description

[0016] Figure 1 This is a perspective view of the female connector in an embodiment of the present utility model;

[0017] Figure 2 This is a front view of the female connector in an embodiment of this utility model;

[0018] Figure 3 This is an embodiment of the present utility model. Figure 2 Sectional view at point BB;

[0019] Figure 4 This is an embodiment of the present utility model. Figure 2 Sectional view at EE;

[0020] Figure 5 This is a schematic diagram of the shielding sleeve in an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the male connector in an embodiment of the present invention;

[0022] Among them: male connector 1; male terminal 11; male core 12; PCB board 13; female connector 2; shell 21; ear 211; mounting hole 212; slot 213; first groove 214; locking block 215; female terminal 22; female core 23; second groove 231; rear cover 24; buckle 241; wire 25; cylinder platform 26; shielding sleeve 27; spring 271; first sealing ring 3; second sealing ring 4. Detailed Implementation

[0023] An embodiment of the present invention, a high-voltage automotive connector assembly, is shown below. Figure 1-6 As shown: It includes a male connector 1 and a female connector 2 that are electrically connected by plug-in coupling. The female connector 2 includes a housing 21, a female terminal 22, a female core 23, and a rear cover 24. The rear end of the female terminal 22 is connected to a wire 25. The female terminal 22 is inserted into the female core 23, and its wire 25 extends to the outside of the female core 23. The female core 23 is inserted into the housing 21 through the front end of the housing 21. The rear cover 24 is snapped onto the rear end of the housing 21 and forms a sleeve fit with the wire 25. A first sealing ring 3 is also provided between the rear cover 24 and the housing 21 to allow interference fit of the wire 25.

[0024] The housing 21 is provided with a cylinder platform 26 and a shielding sleeve 27, and the wire 25 is provided with a ring sleeve. The cylinder platform 26 is connected to the outside of the housing 21, and the shielding sleeve 27 is disposed between the housing 21 and the mother core 23, and the two ends of the shielding sleeve 27 are respectively connected to the cylinder platform 26 and the ring sleeve.

[0025] The housing 21 is provided with ears 211 extending to both sides. The cylinder platform 26 is fitted on the outside of the housing 21 and abuts against the ears 211. The ears 211 are provided with mounting holes 212 for bolts to pass through.

[0026] The housing 21 is provided with a groove 213, which surrounds the housing 21 near the ear 211. The cylinder platform 26 is fitted on the housing 21 and can cover the groove 213. A second sealing ring 4 is provided in the groove 213. The outer and inner sides of the second sealing ring 4 are respectively press-fitted with the inner wall of the groove 213 and the cylinder platform 26.

[0027] The shielding sleeve 27 is provided with a plurality of elastically swinging spring pieces 271. The inner wall of the shell 21 and the outer wall of the core 23 are respectively provided with a first groove 214 and a second groove 231 for the spring pieces to elastically return to their original positions.

[0028] The back cover 24 is sleeved on the shell 21. The shell 21 is provided with a plurality of locking blocks 215 arranged along its circumference. The back cover 24 is provided with a plurality of elastic swinging buckles 241. The buckles 241 and the locking blocks 215 are engaged and fitted together.

[0029] In this embodiment, the male connector 1 includes a male terminal 11, a male core 12, and a PCB board 13. The male terminal 11 and the male core 12 are integrally formed by in-mold injection molding. The PCB board 13 is snapped and positioned with the male core 12. The rear end of the male terminal 11 passes through the PCB board 13.

[0030] The above examples are merely one preferred embodiment of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution are all included within the protection scope of this utility model.

Claims

1. A high voltage automotive connector assembly comprising a male connector and a female connector electrically connected by a plug-in coupling therebetween, characterized in that: The female connector comprises a shell, a female terminal, a female rubber core and a rear cover, the rear end of the female terminal is connected with a wire, the female terminal is inserted into the female rubber core, and the wire extends outside the female rubber core, the female rubber core is inserted into the shell through the front end of the shell, the rear cover is clamped on the rear end of the shell and is in sleeved connection with the wire, and a first sealing ring is arranged between the rear cover and the shell.

2. The high voltage automotive connector assembly of claim 1, wherein: The shell is provided with a cylinder platform and a shielding sleeve, the wire is provided with a ring, the cylinder platform is connected outside the shell, and the shielding sleeve is arranged between the shell and the female rubber core, and the two ends of the shielding sleeve are connected with the cylinder platform and the ring respectively.

3. The high voltage automotive connector assembly of claim 2, wherein: The shell is provided with an ear extending towards two sides, the cylinder platform is sleeved outside the shell and abuts against the ear, and the ear is provided with a mounting hole through which a bolt can pass.

4. The high voltage automotive connector assembly of claim 2 or 3, wherein: The shell is provided with a groove, the groove surrounds the shell near the ear, the cylinder platform is sleeved on the shell and can cover the groove, and the groove is provided with a second sealing ring.

5. The high voltage automotive connector assembly of claim 2 or 3, wherein: The shielding sleeve is provided with a plurality of elastic swing spring sheets, the inner wall of the shell and the outer wall of the female rubber core are respectively provided with a first groove and a second groove for the elastic reset of the spring sheets.

6. The high voltage automotive connector assembly of claim 1, wherein: The rear cover is sleeved on the shell, the shell is provided with a plurality of clamping blocks arranged along the circumference thereof, the rear cover is provided with a plurality of elastic swing buckles, and the buckles and the clamping blocks are in clamping connection.

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