Connector assembly

Abstract

The utility model provides a kind of connector assembly, including shell, needle seat and back cover, the needle seat is inserted in shell, the back cover one end is sleeved on needle seat and is formed with the clamping cooperation between shell, shell includes skirt and first sealing ring, the skirt is set at the place close to back cover, skirt includes a plurality of circumferentially distributed connecting holes and the first installation slot for the installation of first sealing ring, the connecting place of back cover and shell is also formed with second installation slot, second installation slot is provided with second sealing ring. In view of the deficiency of prior art, the utility model provides a kind of connector assembly with good sealing effect and strong stability.

Description

Technical Field

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

[0002] Connectors are basic components used to transmit current or signals and are applied in all aspects of our lives and work. They are also commonly used in the field of new energy vehicles. In particular, the high-voltage connectors of new energy vehicle compressors operate in a vehicle environment with severe vibration and high levels of moisture and dust, which places high demands on the connectors' vibration resistance and the sealing performance of multiple joints.

[0003] Existing connector assemblies have a simple sealing structure for the housing, making it easy for moisture and dust to enter the connector from the mating gaps and assembly positions of the housing, resulting in leakage. In addition, the existing structure is prone to axial loosening and circumferential deflection under continuous vibration, and the sealing ring is prone to displacement under vehicle driving vibration conditions, causing sealing failure and affecting the reliability of the internal electrical connection of the connector. This makes it difficult to adapt to the harsh operating conditions of high-pressure connections in new energy vehicle compressors. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a connector assembly with good sealing effect and strong stability.

[0005] To achieve the above objectives, this utility model provides a connector assembly, including a housing, a pin header, and a rear cover. The pin header is inserted into the housing, and one end of the rear cover is sleeved on the pin header, forming a snap-fit ​​engagement with the housing. The housing includes a skirt and a first sealing ring. The skirt is located near the rear cover and includes a plurality of circumferentially distributed connecting holes and a first mounting groove for mounting the first sealing ring. A second mounting groove is also formed at the connection between the rear cover and the housing, and a second sealing ring is disposed in the second mounting groove.

[0006] The advantages of the above technical solution are as follows: the assembly structure, in which the pin seat is inserted into the outer shell and the pin seat is sleeved on the rear cover and snapped into the outer shell, ensures a stable connection and reliable positioning, guaranteeing stability. Furthermore, a first sealing ring with a first mounting groove is provided near the skirt edge of the rear cover, working in conjunction with a second sealing ring in the second mounting groove at the connection between the rear cover and the outer shell to form a double sealing barrier at the interface between the panel mounting position and the outer shell. Combined with the evenly distributed connecting holes around the skirt edge, a stable assembly is achieved, ensuring that the first and second sealing rings adhere tightly to the corresponding automotive assembly parts after assembly. This effectively prevents moisture and dust from entering the connector from the assembly gaps, significantly improving the overall waterproof and dustproof rating and structural vibration resistance reliability, making it suitable for harsh automotive environments.

[0007] The present invention can be further configured such that: the needle holder is provided with a pin for forming an electrical connection, and a glue-filling groove is formed at the connection between the needle holder and the back cover at the position corresponding to the pin; the glue-filling groove is provided with sealant for forming a seal between the needle holder and the pin; and the second mounting groove is provided at the position corresponding to the glue-filling groove.

[0008] By further designing the design, a potting groove is set at the joint between the pin holder and the back cover, corresponding to the pin position, and filled with sealant. This allows for complete potting of the assembly gap between the pin and the pin holder, sealing the leakage path at the pin from the inside and preventing high-voltage leakage and short-circuit faults caused by moisture intrusion. At the same time, the second mounting groove is set at the position corresponding to the potting groove, so that the external sealing ring protection and the internal potting seal form a multi-layer seal, strengthening the protection capability of the pin electrical connection area and further ensuring the safety and long-term stability of the high-voltage connection.

[0009] The present invention can be further configured such that: the second mounting groove is provided with retaining teeth formed by the needle seat and the rear cover respectively, the retaining teeth being used to engage with the second sealing ring to form a circumferential limit.

[0010] By further designing the second mounting groove, retaining teeth formed by the needle seat and the rear cover are provided. The retaining teeth engage with the second sealing ring to achieve circumferential positioning of the sealing ring. Under continuous vibration and bumpy working conditions, this effectively prevents the second sealing ring from circumferentially shifting, deviating, or even falling off, ensuring that the sealing ring is always in the preset sealing position, maintaining a stable sealing compression, and ensuring the stability of the seal.

[0011] The present invention can be further configured such that: a shielding sleeve is fitted between the needle holder and the outer shell, and the end of the shielding sleeve extends to the space between the first sealing ring and the second sealing ring, and is bent to form an elastic part.

[0012] By further designing the shielding sleeve between the pin header and the housing, reliable electromagnetic shielding is achieved, suppressing electromagnetic interference and meeting the EMC performance requirements of high-voltage connectors. The end of the shielding sleeve extends between the first and second sealing rings and is bent to form an elastic part, which elastically abuts against the corresponding assembly parts of the vehicle to enhance the reliability of the shielding contact, buffer the impact of vibration, and ensure stability.

[0013] The present invention can be further configured such that: the pin holder is provided with a terminal slot for terminal installation, and the terminal slot is also provided with a sealing plug.

[0014] By further configuring the connector with a sealing plug at the terminal slot of the pin socket, the unused terminal slots without installed terminals can be effectively sealed, filling the assembly gap at the terminal slots and preventing moisture and dust from entering the connector through the empty terminal slots, thus further enhancing the sealing capability.

[0015] This utility model can be further configured such that a bushing is provided in the connecting hole.

[0016] By further designing the connection holes, the structural strength and wear resistance of the connection holes can be effectively improved. When the connector is riveted to the panel through the connection holes, the hole walls are prevented from being squeezed, worn, or deformed, ensuring the long-term stability of the fastening force of the assembly. At the same time, the alternating load on the connection holes under vibration conditions can be dispersed, reducing the risk of fatigue damage to the connection holes and improving the vibration resistance reliability and structural service life of the connector panel assembly. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is a top view of an embodiment of the present utility model; Figure 3 This is an embodiment of the present utility model. Figure 2 Sectional view at point AA; Figure 4 This is an embodiment of the present utility model. Figure 2 Sectional view at point BB; Figure 5 This is a schematic diagram of the structure after installation in an embodiment of this utility model; The components include: outer shell 1; skirt 11; connecting hole 111; first mounting groove 112; bushing 113; pin seat 2; potting groove 21; sealant 22; terminal groove 23; sealing plug 24; rear cover 3; second mounting groove 31; first sealing ring 4; second sealing ring 5; pin 6; retaining tooth 7; shielding sleeve 8; elastic part 81; and terminal 9. Detailed Implementation

[0018] An embodiment of the connector assembly of this utility model is as follows: Figure 1-5 As shown: It includes a housing 1, a needle holder 2, and a rear cover 3. The needle holder 2 is inserted into the housing 1. One end of the rear cover 3 is sleeved on the needle holder 2 and forms a snap-fit ​​engagement with the housing 1. The housing 1 includes a skirt 11 and a first sealing ring 4. The skirt 11 is located near the rear cover 3 and includes several circumferentially distributed connecting holes 111 and a first mounting groove 112 for mounting the first sealing ring 4. A second mounting groove 31 is also formed at the connection between the rear cover 3 and the housing 1. The main body of the second mounting groove 31 is formed by the rear cover 3, and the end of the housing 1 serves as a side guard. A second sealing ring 5 is provided in the second mounting groove 31.

[0019] The needle holder 2 is provided with a pin 6 for forming an electrical connection. The pin 6 is used to insert and form an electrical connection. At the connection between the needle holder 2 and the rear cover 3, a glue-filling groove 21 is formed at the position corresponding to the pin 6. The glue-filling groove 21 is provided with sealant 22 for forming a seal between the needle holder 2 and the pin 6. The second mounting groove 31 is provided at the position corresponding to the glue-filling groove 21.

[0020] The second mounting groove 31 is provided with retaining teeth 7 formed by the needle seat 2 and the rear cover 3 respectively. The retaining teeth 7 are used to engage with the second sealing ring 5 to form a circumferential limit.

[0021] A shielding sleeve 8 is fitted between the needle holder 2 and the outer shell 1. The end of the shielding sleeve 8 extends between the first sealing ring 4 and the second sealing ring 5 and is bent to form an elastic part 81.

[0022] The pin holder 2 is provided with a terminal slot 23 for mounting the terminal 9, and the terminal slot 23 is also provided with a sealing plug 24.

[0023] A bushing 113 is provided in the connection hole 111. The bushing 113 is used to transmit locking torque, prevent the plastic shell from being crushed and creeped, and serve as a high-precision installation guide hole to compensate for the installation deviation of the sheet metal panel.

[0024] 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 connector assembly comprising a housing, a pin header, and a back cover, characterized in that: The needle hub is inserted into the housing, and one end of the rear cover is sleeved on the needle hub and forms a snap-fit ​​with the housing. The housing includes a skirt and a first sealing ring. The skirt is located near the rear cover and includes several circumferentially distributed connecting holes and a first mounting groove for installing the first sealing ring. A second mounting groove is also formed at the connection between the rear cover and the housing, and a second sealing ring is disposed in the second mounting groove.

2. The connector assembly according to claim 1, characterized in that: The needle holder is provided with a pin for forming an electrical connection. At the connection between the needle holder and the back cover, a glue-filling groove is formed at the position corresponding to the pin. The glue-filling groove is provided with sealant for forming a seal between the needle holder and the pin. The second mounting groove is provided at the position corresponding to the glue-filling groove.

3. The connector assembly according to claim 1, characterized in that: The second mounting groove is provided with retaining teeth formed by the needle seat and the rear cover, which are used to engage with the second sealing ring to form a circumferential limit.

4. The connector assembly according to claim 1, 2, or 3, characterized in that: A shielding sleeve is fitted between the needle hub and the outer shell. The end of the shielding sleeve extends between the first sealing ring and the second sealing ring and is bent to form an elastic part.

5. The connector assembly according to claim 1, 2, or 3, characterized in that: The pin holder is provided with a terminal slot for terminal installation, and the terminal slot is also provided with a sealing plug.

6. The connector assembly according to claim 1, 2, or 3, characterized in that: A bushing is provided in the connection hole.

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