A connector plug

Abstract

This utility model discloses a connector plug, relating to the field of connector technology, comprising an integrated housing, a male terminal, an outer sealing ring, an end sealing ring, and a sealing cap. The integrated housing has an end sealing groove at one end and a terminal hole communicating with the groove at the other end. The outer wall has a connecting portion and an annular groove. The male terminal is installed in the terminal hole. The outer sealing ring is fitted into the annular groove and has a first protruding ring. The end sealing ring is installed in the sealing groove and has a second protruding ring. The sealing cap covers the sealing groove. The integrated housing eliminates the splicing process, simplifies the manufacturing process, reduces assembly difficulty, and improves structural stability. The outer sealing ring, end sealing ring, and sealing cap form a double seal, preventing moisture and dust intrusion and improving sealing reliability. It is suitable for applications requiring high sealing, such as electric vehicle controllers, ensuring equipment stability and lifespan.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and specifically to a connector plug. Background Technology

[0002] As a key component for circuit connection (such as the connector of an electric vehicle controller), the sealing performance of connectors directly affects the working stability and service life of electronic equipment. Especially in harsh environments such as humidity and dust, sealing failure can easily lead to faults such as short circuits and poor contact.

[0003] Currently, most connector plugs on the market use a split structure design for their shells, which requires assembly to join multiple shell components. This not only increases the production process by adding mold development and component processing, leading to increased process complexity, but also reduces the overall structural stability of the shell due to the assembly gaps at the joints, increasing assembly difficulty and production costs.

[0004] Meanwhile, the sealing design of existing split-shell connector plugs often has shortcomings. They typically only provide sealing for a single area, making it difficult to achieve complete sealing at both the front and rear ends. For example, some products fail to effectively seal the mating parts of the plug and socket or the cable inlet at the end of the shell. External moisture, dust, and other impurities can easily penetrate through weak points in the seal, leading to corrosion or poor contact of core components such as the male terminals. This severely affects the connector's sealing reliability and operational safety, failing to meet the requirements of applications with high sealing demands. Utility Model Content

[0005] To address the shortcomings of the prior art, this utility model provides a connector plug.

[0006] The technical solution adopted by this utility model is: a connector plug, including an integrated shell, a male terminal, an outer sealing ring, an end sealing ring, and a sealing cap; One end of the integrated housing is provided with an end sealing groove, and the other end is provided with a plurality of terminal holes communicating with the end sealing groove. The outer wall of the integrated housing is provided with a connecting part and a ring groove. The male terminal is installed inside the terminal hole; The outer sealing ring is fitted onto the annular groove, and the surface of the outer sealing ring is provided with at least one first protruding ring that protrudes from the surface of the integral housing. The end sealing ring is installed in the end sealing groove and has through holes that correspond one-to-one with the terminal holes. A second protruding ring is provided around the end sealing ring, and the second protruding ring is sealed to the inner wall of the end sealing groove. The sealing cap covers the end sealing groove, and the sealing cap is provided with through grooves that correspond one-to-one with the terminal holes.

[0007] Furthermore, a foolproof groove is provided on one end of the outer wall of the integrated housing.

[0008] Furthermore, the connecting part includes a U-shaped frame integrally formed with the one-piece shell and elastic hanging plates connected to the two side plates of the U-shaped frame via connecting plates. The elastic hanging plates are provided with connecting ports and stepped pressing heads.

[0009] Furthermore, the sealing cap has hanging openings on both sides of its sidewalls, and the integrated housing has connecting steps on both sides of its sidewalls that connect and cooperate with the hanging openings. The ends of the connecting steps are provided with guide slopes.

[0010] Furthermore, the first convex ring consists of two rings.

[0011] The beneficial effects of this utility model are: 1. Simplified production process and reduced assembly difficulty: This application adopts a one-piece shell structure, eliminating the need for multiple parts to be assembled in the existing split shell design. This design reduces the number of mold developments and component processing steps, simplifying the production process from the source; at the same time, it avoids the assembly gap problem caused by splicing in the split structure, eliminating the need for precise alignment and assembly of multiple shell components, effectively reducing assembly difficulty, improving production efficiency, and thus reducing overall production costs.

[0012] 2. Enhanced Overall Structural Stability: Compared to split-type housings, the integrated housing eliminates structural weaknesses at the joints of multiple components, significantly improving the overall structural strength and stability of the connector plug. When subjected to external forces such as vibration and impact, the integrated structure effectively prevents component displacement or separation caused by loose joints in split-type structures, providing more reliable structural support for core components such as the internal male terminals and ensuring connection stability.

[0013] 3. Enhanced Sealing Performance: This application overcomes the shortcomings of incomplete sealing in existing single-seal structures through a collaborative design of multiple sealing structures, forming a comprehensive sealing system with dual front and rear sealing. Specifically, the outer sealing ring is fitted onto the annular groove of the integrated housing, and its first convex ring can tightly fit against the outer wall of the corresponding socket of the connector socket, achieving effective sealing at the front end of the plug-socket mating part; the end sealing ring is installed in the end sealing groove of the integrated housing, and its second convex ring fits tightly against the inner wall of the end sealing groove. At the same time, the sealing cap covers the end sealing groove, forming a rear-end seal at the end of the housing, which can effectively prevent external moisture, dust, and other impurities from entering through the end inlet hole or gaps. The dual sealing structures work together to significantly improve the sealing reliability of the connector plug, enabling it to adapt to harsh environments such as humidity and dust, reducing the risk of corrosion and poor contact of core components, ensuring the working stability and service life of electronic equipment (such as electric vehicle controllers), and meeting the needs of application scenarios with high sealing requirements.

[0014] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

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

[0017] Figure 2 This is an exploded view of the present invention.

[0018] Figure 3 This is a structural diagram of a one-piece shell.

[0019] Figure 4 This is a schematic diagram of the structure of a sealing cap.

[0020] Figure 1-4 In the middle: 1. Integrated housing; 2. Male terminal; 3. Outer sealing ring; 4. End sealing ring; 5. Sealing cap; 6. End sealing groove; 7. Terminal hole; 8. Annular groove; 9. First convex ring; 10. Through hole; 11. Second convex ring; 12. Through groove; 13. Foolproof long groove; 14. "U" shaped frame; 15. Flexible hanging plate; 16. Connection port; 17. Stepped pressing head; 18. Hanging port; 19. Connecting step; 20. Guide slope. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] This utility model provides a connector plug.

[0024] In this embodiment, refer to Figure 1-4 The connector plug includes an integral housing 1, a male terminal 2, a peripheral sealing ring 3, an end sealing ring 4, and a sealing cap 5; One end of the integrated housing is provided with an end sealing groove 6, and the other end is provided with a plurality of terminal holes 7 communicating with the end sealing groove 6. The outer wall of the integrated housing is provided with a connecting part and a ring groove 8. The male terminal is installed inside the terminal hole; The outer sealing ring 3 is fitted onto the annular groove 8, and the surface of the outer sealing ring is provided with at least one first protruding ring 9 that protrudes from the surface of the integrated outer shell. The end sealing ring is installed in the end sealing groove, and has through holes 10 that correspond one-to-one with the terminal holes. A second protruding ring 11 is provided around the end sealing ring, and the second protruding ring is sealed to the inner wall of the end sealing groove. The sealing cap covers the end sealing groove, and the sealing cap is provided with through grooves 12 that correspond one-to-one with the terminal holes.

[0025] In the above technical solution, the male terminal, outer sealing ring, end sealing ring, and sealing cap are integrated and assembled on a one-piece housing. One end of the one-piece housing has an end sealing groove, and the other end has a terminal hole communicating with the groove. The outer wall has a connecting part and an annular groove. The connecting part is used to connect with the female housing of the connector. The male terminal is fixed in the terminal hole to ensure conductive connection. The outer sealing ring is fitted onto the annular groove, forming a surface contact seal with the outer wall of the socket hole through a first convex ring. The end sealing ring is embedded in the end sealing groove, with a second convex ring sealingly engaging with the inner wall of the groove. The wire passes through the through hole of the end sealing ring to form a seal, and the sealing cap is used to achieve end sealing, forming a dual sealing structure of "front end + rear end".

[0026] The one-piece shell eliminates the splicing process of the split shell, reduces mold development and processing steps, lowers process complexity and assembly difficulty, and eliminates splicing gaps to improve structural stability; the dual sealing system solves the defects of the existing single sealing. The first convex ring at the front end strengthens the sealing performance of the plug and socket, while the second convex ring at the rear end works with the sealing cap to prevent impurities from entering through end gaps, greatly improving the sealing reliability in humid and dusty environments.

[0027] Specifically, a foolproof groove 13 is provided on the outer wall of one end of the integrated housing.

[0028] In this embodiment, a foolproof groove is added to the outer wall of one end of the integrated housing. This groove and the foolproof protrusion corresponding to the connector socket form a unique matching relationship. Only when the plug and the socket's foolproof structure are aligned can they be inserted, thus avoiding damage to the components caused by incorrect insertion direction.

[0029] Specifically, the connecting part includes a U-shaped frame 14 integrally formed with the integrated shell and an elastic hanging plate 15 connected to the two side plates of the U-shaped frame 14 via a connecting plate. The elastic hanging plate is provided with a connecting port 16 and a stepped pressing head 17.

[0030] In this embodiment, the connecting part is designed as a U-shaped frame integrally formed with the one-piece outer shell. The two side plates are connected to the elastic hanging plate through connecting plates. The elastic hanging plate has a connecting port and a stepped pressing head. When inserted, the connecting port of the elastic hanging plate is locked in place by the snap-fit ​​structure of the socket. When disassembled, pressing the stepped pressing head deforms the elastic hanging plate, releasing the snap-fit ​​engagement. The U-shaped frame integrally formed with the outer shell enhances the structural strength of the connecting part and also protects the elastic hanging plate.

[0031] Specifically, the sealing cap has hanging openings 18 on both sides of its sidewalls, and the integrated housing has connecting steps 19 on both sides of its sidewalls that connect and cooperate with the hanging openings 18. The end of the connecting steps 19 has an inlet ramp 20.

[0032] In this embodiment, hanging openings are provided on both sides of the sealing cap, and matching connecting steps are provided on both sides of the integrated housing. The ends of the connecting steps are provided with guide slopes. During assembly, the sealing cap slides in along the guide slopes, so that the hanging openings and connecting steps are engaged and fixed, thereby realizing the rapid assembly of the sealing cap and the housing.

[0033] Specifically, the first convex ring consists of two rings.

[0034] In this embodiment, two first convex rings are provided on the surface of the outer sealing ring. The two convex rings are distributed at intervals along the axial direction of the sealing ring. When inserted, they both form interference contact with the outer wall of the connector socket hole, thus constructing a double radial sealing structure.

[0035] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A connector plug, characterized in that: Includes an integrated housing, male terminals, an outer sealing ring, an end sealing ring, and a sealing cap; One end of the integrated housing is provided with an end sealing groove, and the other end is provided with a plurality of terminal holes communicating with the end sealing groove. The outer wall of the integrated housing is provided with a connecting part and a ring groove. The male terminal is installed inside the terminal hole; The outer sealing ring is fitted onto the annular groove, and the surface of the outer sealing ring is provided with at least one first protruding ring that protrudes from the surface of the integral housing. The end sealing ring is installed in the end sealing groove and has through holes that correspond one-to-one with the terminal holes. A second protruding ring is provided around the end sealing ring, and the second protruding ring is sealed to the inner wall of the end sealing groove. The sealing cap covers the end sealing groove, and the sealing cap is provided with through grooves that correspond one-to-one with the terminal holes.

2. The connector plug according to claim 1, characterized in that: A foolproof groove is provided on one end of the outer wall of the integrated housing.

3. The connector plug according to claim 1, characterized in that: The connecting part includes a U-shaped frame integrally formed with the one-piece shell and elastic hanging plates connected to the two side plates of the U-shaped frame via connecting plates. The elastic hanging plates are provided with connecting ports and stepped pressing heads.

4. The connector plug according to claim 1, characterized in that: The sealing cap has hanging openings on both sides of its sidewalls, and the integrated housing has connecting steps on both sides of its sidewalls that connect and cooperate with the hanging openings. The ends of the connecting steps are provided with guide slopes.

5. The connector plug according to claim 1, characterized in that: The first convex ring consists of two rings.

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