Automobile connector waterproof and dustproof sealing assembly

CN224889983UActive Publication Date: 2026-10-23DONGGUAN PUXIN ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521893609.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-03
Publication Date
2026-10-23
Estimated Expiration
2035-09-03

AI Technical Summary

Technical Problem

在汽车行驶过程中,连接器常处于潮湿、多尘、振动及温度剧烈变化的复杂环境中,若防水防尘效果不佳,水分和灰尘易侵入连接器内部,导致电路短路、接触不良等故障,严重时可能引发车辆失控等安全隐患;

Benefits of technology

[0010]1.当连接器与连接端头进行装配时,两者通过限位件-限位槽与限位架构成的双重定位系统实现初步对接,连接端头上的限位架作为导向结构,首先引导连接器的插入方向,避免对接过程中出现大范围偏斜;随后,连接器外的限位件与连接端头内侧的限位槽形成咬合配合,为后续防水组件的密封动作奠定同轴度基础。

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Abstract

The utility model relates to the technical field of automobile connector, especially to a waterproof and dustproof sealing assembly of automobile connector. Its technical scheme includes: connector, connecting end, limit frame, limiting piece, installation aperture and waterproof assembly, the connector is detachable in connecting end head, and the limit frame is set up on connecting end head, and the limiting piece is set up on the connector, and the limit groove is set up on the side of connecting end head close to limit frame, and the limit groove and the limiting piece are mutually matched, and the waterproof assembly is set up in the connector, and the installation aperture is set up in one end of the connector, through limit frame, limiting piece and limit groove constitute double positioning system, realize the accurate butt joint of connector and connecting end head, ensure the coaxial degree to guarantee the subsequent sealing effect, the waterproof assembly reset spring lifts the sealing plate, and the fixed block pushes the sealing plate to move along the guide rod during butt joint, makes the rubber gasket on the sealing plate and connecting line adhere and elastically deform, fills the gap and forms the sealing barrier, prevents the moisture and dust from invading.
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Description

Technical Field

[0001] This utility model relates to the field of automotive connector technology, specifically to a waterproof and dustproof sealing component for automotive connectors. Background Technology

[0002] As a key component in automotive electrical systems for transmitting current and signals, automotive connectors' waterproof and dustproof performance directly affects the operational stability and lifespan of automotive electronic equipment. During vehicle operation, connectors are often exposed to complex environments characterized by humidity, dust, vibration, and drastic temperature changes. If the waterproof and dustproof performance is inadequate, moisture and dust can easily penetrate the connector, leading to faults such as short circuits and poor contact. In severe cases, this may even cause safety hazards such as loss of vehicle control.

[0003] Existing automotive connector sealing assemblies mostly use a single sealing ring or static sealing structure, which has the following shortcomings: First, the mating positioning accuracy is insufficient, and misalignment is prone to occur when the connector and the connection end are assembled, resulting in loose sealing surfaces and gaps; Second, the sealing structure has poor adaptability and is difficult to cope with small deviations in the diameter of the connecting wire and slight tilting during installation, which can easily lead to sealing failure. In view of this, we propose a waterproof and dustproof sealing assembly for automotive connectors to solve the existing problems. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof and dustproof sealing component for automotive connectors to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and dustproof sealing assembly for an automotive connector, comprising a connector, a connecting end, a limiting frame, a limiting component, a mounting hole, and a waterproof component. The connecting end contains a detachable connector, a limiting frame is provided on the connecting end, and a limiting component is provided on the connector. A limiting groove is provided on the side of the connecting end near the limiting frame, and the limiting groove and the limiting component cooperate with each other. A waterproof component is provided inside the connector, and a mounting hole is provided at one end of the connector.

[0006] Preferably, the waterproof component includes a fixing block, a mounting plate, a guide rod, a connecting wire, a sealing plate, a protrusion, a groove, and a return spring. The connector is provided with a mounting plate, and the connector is detachably connected to the connecting wire through the mounting hole. The sealing plate is movably connected inside the connector. The sealing plate has a concave structure, and a protrusion is fixedly connected below the sealing plate. The surface of the mounting plate is provided with a groove.

[0007] Preferably, a fixing block is symmetrically arranged inside the connecting end, the fixing block penetrates the groove and the protrusion to cooperate with each other, and a guide rod is fixedly connected inside the connector, the sealing plate is located on the guide rod, and a return spring is sleeved on the guide rod between the connector and the sealing plate.

[0008] Preferably, the sealing plate is provided with a gasket made of rubber material, and the sealing plate and the connecting wire cooperate with each other.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. When the connector and the connecting end are assembled, they achieve initial docking through a dual positioning system consisting of a limiting component, a limiting groove, and a limiting frame. The limiting frame on the connecting end acts as a guide structure, first guiding the insertion direction of the connector and avoiding large-scale misalignment during docking. Subsequently, the limiting component outside the connector and the limiting groove inside the connecting end form an interlocking fit, laying the coaxiality foundation for the subsequent sealing action of the waterproof components.

[0011] 2. When the connector and the connecting end are mated and gradually approach each other until they are fully mated, the symmetrically arranged fixing blocks inside the connecting end move deeper into the connector as the connecting end moves. The concave structure on the sealing plate matches the shape of the connecting wire. As the sealing plate moves, the sealing plate and the connecting wire gradually come into contact. The rubber gasket on the sealing plate undergoes elastic deformation due to the compression of the connecting wire and the sealing plate. Because the rubber material has good sealing and elasticity, the deformed gasket can tightly wrap the surface of the connecting wire, completely filling the gap between the connecting wire and the mounting hole, forming the first effective sealing barrier, preventing moisture and dust from entering the connector through the mounting hole. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the mating structure between the connector and the connecting end in this utility model;

[0014] Figure 3 This is a schematic diagram of the waterproof component in this utility model;

[0015] Figure 4 This is a schematic diagram showing the cooperation between the fixing block and the protrusion in the waterproof component of this utility model.

[0016] In the diagram: 1. Connector; 2. Connecting end; 3. Limiting bracket; 4. Limiting component; 5. Mounting hole diameter; 6. Waterproof component; 601. Fixing block; 602. Mounting plate; 603. Guide rod; 604. Connecting wire; 605. Sealing plate; 606. Protrusion; 607. Groove; 608. Return spring; 7. Limiting groove. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0018] like Figures 1-4 As shown, the present invention proposes a waterproof and dustproof sealing assembly for an automotive connector, comprising a connector 1, a connecting end 2, a limiting frame 3, a limiting member 4, a mounting hole 5, and a waterproof component 6. The connector 1 is detachably housed within the connecting end 2. The connecting end 2 has a limiting frame 3 and a limiting member 4. A limiting groove 7 is provided on the side of the connecting end 2 near the limiting frame 3. The limiting groove 7 and the limiting member 4 cooperate with each other. The waterproof component 6 is provided inside the connector 1, and a mounting hole 5 is provided at one end of the connector 1.

[0019] In an optional embodiment, the waterproof component 6 includes a fixing block 601, a mounting plate 602, a guide rod 603, a connecting wire 604, a sealing plate 605, a protrusion 606, a groove 607, and a return spring 608. The connector 1 is provided with a mounting plate 602. The connector 1 is detachably connected to the connecting wire 604 through the mounting hole 5. The sealing plate 605 is movably connected inside the connector 1. The sealing plate 605 has a concave structure. A protrusion 606 is fixedly connected below the sealing plate 605. The mounting plate 602 has a groove 607 on its surface.

[0020] In an optional embodiment, a fixing block 601 is symmetrically arranged inside the connecting end 2. The fixing block 601 passes through the groove 607 and the protrusion 606 and cooperates with each other. A guide rod 603 is fixedly connected inside the connector 1. A sealing plate 605 is located on the guide rod 603. A return spring 608 is sleeved on the guide rod 603 between the connector 1 and the sealing plate 605.

[0021] In an optional embodiment, a gasket is provided on the sealing plate 605. The gasket is made of rubber material, and the sealing plate 605 and the connecting wire 604 cooperate with each other.

[0022] When connector 1 and connector end 2 are mated and gradually approach each other until they are fully mated, the symmetrically arranged fixing blocks 601 inside connector end 2 move deeper into connector 1 as connector end 2 moves. The concave structure on sealing plate 605 matches the shape of connecting wire 604. As sealing plate 605 moves, sealing plate 605 and connecting wire 604 gradually come into contact. The rubber gasket on sealing plate 605 undergoes elastic deformation under the pressure of connecting wire 604 and sealing plate 605. Due to the good sealing and elasticity of rubber material, the deformed gasket can tightly wrap the surface of connecting wire 604, completely filling the gap between connecting wire 604 and mounting hole 5, forming the first effective sealing barrier, preventing moisture and dust from entering the interior of connector 1 through mounting hole 5.

[0023] The working principle of this utility model is as follows: When using this device, when the connector 1 and the connecting end 2 are assembled, the two achieve initial docking through the dual positioning system composed of the limiting member 4-limiting groove 7 and the limiting frame 3. The limiting frame 3 on the connecting end 2 serves as a guide structure, first guiding the insertion direction of the connector 1 and avoiding large-scale deviation during docking. Subsequently, the limiting member 4 outside the connector 1 and the limiting groove 7 inside the connecting end 2 form an interlocking fit, laying the coaxiality foundation for the subsequent sealing action of the waterproof component 6.

[0024] Before the connecting wire 604 is installed and the connector 1 is mated with the connecting end 2, the waterproof component 6 is in its initial state. At this time, the mounting plate 602 inside the connector 1 remains fixed, and the groove 607 on its surface is empty. The sealing plate 605 is movably connected to the connector 1 through the guide rod 603. Since the return spring 608 sleeved on the guide rod 603 is in a naturally extended state, the spring force pushes the sealing plate 605 up. At the same time, the fixing blocks 601 symmetrically arranged inside the connecting end 2 interact with the groove 607 and the protrusion 606. When a connection operation is required, the connecting wire 604 is inserted into the connector 1 through the mounting hole 5.

[0025] When connector 1 and connector end 2 are mated and gradually approach each other until they are fully mated, the symmetrically arranged fixing blocks 601 inside connector end 2 move deeper into connector 1 as connector end 2 moves. The concave structure on sealing plate 605 matches the shape of connecting wire 604. As sealing plate 605 moves, sealing plate 605 and connecting wire 604 gradually come into contact. The rubber gasket on sealing plate 605 undergoes elastic deformation under the pressure of connecting wire 604 and sealing plate 605. Due to the good sealing and elasticity of rubber material, the deformed gasket can tightly wrap the surface of connecting wire 604, completely filling the gap between connecting wire 604 and mounting hole 5, forming the first effective sealing barrier, preventing moisture and dust from entering the interior of connector 1 through mounting hole 5.

[0026] It should be understood that the specific embodiments described above are for illustrative purposes or to explain the principles of this utility model, and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A waterproof and dustproof sealing assembly for automotive connectors, characterized in that: The device includes a connector (1), a connecting end (2), a limiting frame (3), a limiting component (4), a mounting hole (5), and a waterproof component (6). The connector (1) is detachably housed inside the connecting end (2). The connecting end (2) has a limiting frame (3) and a limiting component (4) on it. A limiting groove (7) is provided on the side of the connecting end (2) near the limiting frame (3). The limiting groove (7) and the limiting component (4) cooperate with each other. The waterproof component (6) is provided inside the connector (1), and a mounting hole (5) is provided at one end of the connector (1).

2. The waterproof and dustproof sealing assembly for an automotive connector according to claim 1, characterized in that: The waterproof component (6) includes a fixing block (601), a mounting plate (602), a guide rod (603), a connecting wire (604), a sealing plate (605), a protrusion (606), a groove (607), and a return spring (608). The connector (1) is provided with a mounting plate (602). The connector (1) is detachably connected to the connecting wire (604) through the mounting hole (5). The sealing plate (605) is movably connected inside the connector (1). The sealing plate (605) has a concave structure. A protrusion (606) is fixedly connected below the sealing plate (605). The mounting plate (602) has a groove (607) on its surface.

3. The waterproof and dustproof sealing assembly for an automotive connector according to claim 2, characterized in that: A fixing block (601) is symmetrically arranged inside the connecting end (2). The fixing block (601) passes through the groove (607) and the protrusion (606) and cooperates with each other. A guide rod (603) is fixedly connected inside the connector (1). The sealing plate (605) is located on the guide rod (603). A return spring (608) is sleeved on the guide rod (603) between the connector (1) and the sealing plate (605).

4. The waterproof and dustproof sealing assembly for an automotive connector according to claim 3, characterized in that: A gasket is provided on the sealing plate (605), the gasket is made of rubber material, and the sealing plate (605) and the connecting line (604) cooperate with each other.