Connector with reinforced waterproof and moisture-proof structure
By using a combination of waterproof rubber rings, snap-fit structures, and limiting posts in the connector, multiple sealing layers are formed, which solves the problem of water seepage in the shell gaps and connector penetration in high humidity environments, achieving higher waterproof and moisture-proof performance and pressure resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN YANXUN ELECTRONIC TECH CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-06-16
AI Technical Summary
Existing connectors are not waterproof or moisture-proof in high humidity or outdoor environments, especially with problems of water seepage in the gaps between the housing and the contact surface between the internal connector and the housing.
Waterproof rubber rings are used to fill the assembly gaps between the PIN connector and the outer shell assembly, and they are tightly spliced together by a snap-fit structure and limiting posts. The edges of the upper and lower shells are provided with positioning protrusions and grooves filled with waterproof rubber to form multiple sealing layers. Combined with elastic rubber sealing rings, airtightness is improved.
It effectively blocks moisture from penetrating through both the external seams and the internal joint contact surfaces, improving the sealing performance of the connector under vibration and external impact, and preventing sealing failure caused by water seepage and shrinkage.
Smart Images
Figure CN224367210U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connector technology, and in particular to a connector with an enhanced waterproof and moisture-proof structure. Background Technology
[0002] In the field of electronic connectors, waterproof and moisture-proof design is a key technology to ensure reliable operation of equipment in high humidity, outdoor, or industrial environments. Current technologies typically employ methods such as single-ring compression sealing, integral shell injection molding, or ultrasonic welding for waterproof connector structures. However, these methods still have the following drawbacks: 1. Water seepage through shell joints: For split connectors (such as upper and lower shell structures), traditional designs rely on tight fits or rubber gaskets between shells for sealing. However, after long-term use, vibration and thermal expansion and contraction can easily lead to water seepage at the joints, especially when moisture penetrates through tiny gaps in the shell joints, making complete prevention difficult; 2. Insufficient structural redundancy: Some connectors only have a waterproof layer on the outside of the shell, without multiple layers of protection for the contact surface between the internal connector and the shell. Moisture may seep in along the assembly gaps between the shell and the connector, affecting the performance of the internal circuitry. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a connector with a reinforced waterproof and moisture-proof structure, improve the sealing performance of the splice of the PIN connector, upper shell and lower shell, and enhance the waterproof and moisture-proof performance of the connector in high humidity, outdoor or industrial environments.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a connector with an enhanced waterproof and moisture-proof structure, including a housing assembly and a PIN connector. The front side of the housing assembly is provided with a connector assembly port, the PIN connector is installed in the connector assembly port, and a waterproof rubber ring is sandwiched between the PIN connector and the connector assembly port. The waterproof rubber ring is elastically set to fill the assembly gap between the PIN connector and the housing assembly, thereby improving waterproofness.
[0005] In a further technical solution, the outer shell assembly includes an upper shell and a lower shell, and a snap-fit structure is connected between the upper shell and the lower shell. The snap-fit structure includes multiple fastening pins and fastening holes. The fastening pins and fastening holes are respectively formed on the assembly surface between the upper shell and the lower shell. When the upper shell and the lower shell are assembled, each fastening pin is inserted into the corresponding fastening hole.
[0006] In a further technical solution, a limiting post is provided between the assembly surfaces of the upper shell and the lower shell. When the upper shell and the lower shell are assembled, the two corresponding limiting posts contact each other to improve the compressive strength of the outer shell assembly.
[0007] In a further technical solution, the edges of the upper shell and the lower shell are also provided with a waterproof structure, including a positioning protrusion and a positioning groove. The positioning protrusion and the positioning groove are respectively formed at the splicing point of the upper shell and the lower shell. When the upper shell and the lower shell are spliced, the positioning protrusion is embedded in the positioning groove. Waterproof adhesive is also provided between the positioning protrusion and the positioning groove. The waterproof adhesive is cured and filled between the two.
[0008] In a further technical solution, the outer wall of the positioning protrusion is formed with a filling groove to increase the filling amount of the waterproof adhesive and prevent shrinkage from damaging its waterproof performance.
[0009] In a further technical solution, the front side of the upper shell is formed with an upper connector clamp and the front side of the lower shell is formed with a lower connector clamp. The upper connector clamp and the lower connector clamp are respectively semi-enclosed and are assembled to form the connector assembly port. The inner side of the lower connector clamp is formed with a positioning protrusion on each side. The waterproof rubber ring is provided with corresponding positioning through holes at intervals. The upper connector clamp and the lower connector clamp cooperate to clamp the waterproof rubber ring, and the positioning protrusion is inserted into the corresponding positioning through hole.
[0010] In a further technical solution, the PIN connector is externally covered by a shielding shell, and the shielding shell and the PIN connector are fused together. The waterproof rubber ring is fitted onto the outer side of the shielding shell.
[0011] In a further technical solution, two positioning holes are provided at the bottom of the shielding shell, and the positioning protrusions of the lower connector clamp are respectively inserted into the corresponding positioning holes.
[0012] In a further technical solution, the upper shell has an upper lead clamp formed on its rear side, and the lower shell has a lower lead clamp formed on its rear side. The upper lead clamp and the lower lead clamp are respectively semi-enclosed. When the upper shell and the lower shell are assembled, the upper lead clamp and the lower lead clamp are assembled to form a lead wire connection. The outer side of the lead wire connection is formed with a lead wire hole. The lead wire connection is centered, left-aligned, or right-aligned.
[0013] In a further technical solution, the lead hole is provided with a lead sleeve, which includes a sealing ring made of elastic rubber to improve the airtightness between the lead hole and the lead.
[0014] The advantages of this invention compared to the prior art after adopting the above structure are:
[0015] 1. A waterproof rubber ring is sandwiched between the PIN connector and the outer shell assembly, elastically filling the assembly gap and preventing moisture from entering from the contact surface between the connector and the shell. Simultaneously, the upper and lower shells of the outer shell assembly are tightly joined together by a snap-fit structure and limiting posts. The waterproof adhesive at the edges cures and fills the gaps between the positioning protrusions and grooves, forming a physical sealing layer at the shell joint. These two elements work together to block moisture from penetrating through both the external splicing seam and the internal connector contact surface.
[0016] 2. The filling groove on the outer wall of the positioning convex edge can increase the amount of waterproof adhesive filling. Even if the adhesive shrinks slightly due to thermal expansion and contraction, it can still maintain the integrity of the seal and avoid the risk of water leakage caused by adhesive shrinkage.
[0017] 3. The upper and lower shells are precisely aligned through multiple sets of fastening pins and insertion holes, combined with the contact limiting of the limiting post, which significantly improves the pressure resistance of the shell components under insertion, vibration or external impact, and prevents sealing failure caused by structural deformation.
[0018] 4. The positioning protrusion of the lower connector clamp matches the positioning perforation of the waterproof rubber ring to ensure that the rubber ring does not shift during assembly, maintains a uniform compression state, and avoids local stress concentration that could damage the seal. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 This is a schematic diagram of the structure of this utility model.
[0021] Figure 2 This is a structural schematic diagram from another perspective of this utility model.
[0022] Figure 3 This is an exploded view of the present invention. Detailed Implementation
[0023] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.
[0024] like Figures 1 to 3 As shown, a connector with enhanced waterproof and moisture-proof structure is characterized by: including a housing assembly (1) and a PIN connector (2), the front side of the housing assembly (1) is provided with a connector assembly port, the PIN connector (2) is installed in the connector assembly port, and a waterproof rubber ring (4) is sandwiched between the PIN connector (2) and the connector assembly port. The waterproof rubber ring (4) is elastically set to fill the assembly gap between the PIN connector (2) and the housing assembly (1) to improve waterproofness.
[0025] Specifically, the outer shell assembly (1) includes an upper shell (11) and a lower shell (12). A snap-fit structure is connected between the upper shell (11) and the lower shell (12). The snap-fit structure includes multiple fastening pins (123) and fastening holes. The fastening pins (123) and fastening holes are respectively formed on the assembly surface between the upper shell (11) and the lower shell (12). When the upper shell (11) and the lower shell (12) are assembled, each fastening pin (123) is inserted into the corresponding fastening hole.
[0026] Specifically, a limiting post (124) is provided between the assembly surfaces of the upper shell (11) and the lower shell (12). When the upper shell (11) and the lower shell (12) are assembled, the two corresponding limiting posts (124) contact each other to improve the compressive strength of the outer shell assembly (1).
[0027] The upper shell 11 and the lower shell 12 are precisely aligned with the insertion holes through multiple sets of fastening pins 123. Combined with the contact limiting of the limiting post 124, the pressure resistance of the outer shell assembly 1 under insertion, vibration or external impact is significantly improved, and the sealing failure caused by structural deformation is prevented.
[0028] Specifically, the edges of the upper shell (11) and the lower shell (12) are also provided with waterproof structures, including positioning protrusions (125) and positioning grooves. The positioning protrusions (125) and positioning grooves are respectively formed at the splicing points of the upper shell (11) and the lower shell (12). When the upper shell (11) and the lower shell (12) are spliced together, the positioning protrusions (125) are embedded in the positioning grooves. Waterproof adhesive is also provided between the positioning protrusions (125) and the positioning grooves. The waterproof adhesive is cured and filled between the two.
[0029] A waterproof rubber ring 4 is sandwiched between the PIN connector 2 and the outer shell assembly 1, elastically filling the assembly gap and preventing moisture from entering from the contact surface between the connector and the shell. Simultaneously, the upper shell 11 and lower shell 12 of the outer shell assembly 1 are tightly joined together by a snap-fit structure and a limiting post 124. The edge waterproof adhesive is cured and fills the gap between the positioning protrusion 125 and the groove, forming a physical sealing layer at the shell joint. Both work together to block moisture from penetrating through both the external splicing seam and the internal connector contact surface.
[0030] Specifically, the outer wall of the positioning protrusion (125) is formed with a filling groove (1250) to increase the filling amount of the waterproof adhesive and prevent the waterproof performance from being damaged after shrinkage.
[0031] The filling groove 1250 on the outer wall of the positioning protrusion 125 can increase the amount of waterproof adhesive filling. Even if the adhesive shrinks slightly due to thermal expansion and contraction, it can still maintain the integrity of the seal and avoid the risk of water leakage caused by adhesive shrinkage.
[0032] Specifically, the front side of the upper shell (11) is formed with an upper connector clamp (111), and the front side of the lower shell (12) is formed with a lower connector clamp (121). The upper connector clamp (111) and the lower connector clamp (121) are respectively semi-enclosed and are assembled to form the connector assembly port. The inner side of the lower connector clamp (121) is formed with a positioning protrusion (1211) on both sides. The waterproof rubber ring (4) is provided with corresponding positioning holes (41) spaced apart. The upper connector clamp (111) and the lower connector clamp (121) cooperate to clamp the waterproof rubber ring (4), and the positioning protrusion (1211) is inserted into the corresponding positioning hole (41).
[0033] The positioning protrusion 1211 of the lower connector clamp 121 cooperates with the positioning through hole 41 of the waterproof rubber ring 4 to ensure that the rubber ring does not shift during assembly, maintains a uniform compression state, and avoids local stress concentration that could damage the seal.
[0034] Specifically, the PIN connector (2) is covered with a shielding shell (3), and the shielding shell (3) and the PIN connector (2) are fused together. The waterproof rubber ring (4) is fitted on the outer side of the shielding shell (3).
[0035] Specifically, the bottom of the shielding shell (3) has two positioning holes, and the positioning protrusions (1211) of the lower connector clamp (121) are respectively inserted into the corresponding positioning holes.
[0036] Specifically, the upper shell (11) has an upper lead clamp (112) formed on its rear side, and the lower shell (12) has a lower lead clamp (122) formed on its rear side. The upper lead clamp (112) and the lower lead clamp (122) are respectively semi-enclosed. When the upper shell (11) and the lower shell (12) are assembled, the upper lead clamp (112) and the lower lead clamp (122) are assembled to form a lead connector (10). The outer side of the lead connector (10) is formed with a lead hole (101). The lead connector (10) is positioned on the left.
[0037] Specifically, the lead hole (101) is provided with a lead sleeve, which includes a sealing ring made of elastic rubber to improve the airtightness between the lead hole (101) and the lead.
[0038] 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 connector with an enhanced waterproof and moisture-proof structure, characterized in that: Includes a housing assembly (1) and a PIN connector (2). The front side of the housing assembly (1) is provided with a connector assembly port. The PIN connector (2) is installed in the connector assembly port. A waterproof rubber ring (4) is sandwiched between the PIN connector (2) and the connector assembly port. The waterproof rubber ring (4) is elastically set to fill the assembly gap between the PIN connector (2) and the housing assembly (1) to improve waterproofness. The outer shell assembly (1) includes an upper shell (11) and a lower shell (12). A snap-fit structure is connected between the upper shell (11) and the lower shell (12). The snap-fit structure includes multiple fastening pins (123) and fastening holes. The fastening pins (123) and fastening holes are respectively formed on the assembly surface between the upper shell (11) and the lower shell (12). When the upper shell (11) and the lower shell (12) are assembled, each fastening pin (123) is inserted into the corresponding fastening hole. A limiting post (124) is provided between the assembly surfaces of the upper shell (11) and the lower shell (12). When the upper shell (11) and the lower shell (12) are assembled, the two corresponding limiting posts (124) contact each other to improve the compressive strength of the outer shell assembly (1). The edges of the upper shell (11) and the lower shell (12) are also provided with waterproof structures, including positioning protrusions (125) and positioning grooves. The positioning protrusions (125) and positioning grooves are respectively formed at the splicing of the upper shell (11) and the lower shell (12). When the upper shell (11) and the lower shell (12) are spliced, the positioning protrusions (125) are embedded in the positioning grooves. Waterproof adhesive is also provided between the positioning protrusions (125) and the positioning grooves. The waterproof adhesive is cured and filled between the two. The outer wall of the positioning protrusion (125) is formed with a filling groove (1250) to increase the filling amount of the waterproof adhesive and prevent the waterproof performance from being damaged after shrinkage. The upper shell (11) has an upper connector clamp (111) formed on the front side, and the lower shell (12) has a lower connector clamp (121) formed on the front side. The upper connector clamp (111) and the lower connector clamp (121) are respectively semi-enclosed and are assembled to form the connector assembly port. The lower connector clamp (121) has a positioning protrusion (1211) formed on both sides of its inner side. The waterproof rubber ring (4) is provided with corresponding positioning holes (41) spaced apart. The upper connector clamp (111) and the lower connector clamp (121) cooperate to clamp the waterproof rubber ring (4), and the positioning protrusion (1211) is inserted into the corresponding positioning hole (41). The PIN connector (2) is covered with a shielding shell (3), and the shielding shell (3) and the PIN connector (2) are fused together. The waterproof rubber ring (4) is fitted on the outer side of the shielding shell (3).
2. The connector with a reinforced waterproof and moisture-proof structure according to claim 1, characterized in that: The bottom of the shield shell (3) has two positioning holes, and the positioning protrusions (1211) of the lower connector clamp (121) are respectively inserted into the corresponding positioning holes.
3. The connector with a reinforced waterproof and moisture-proof structure according to claim 2, characterized in that: The upper shell (11) has an upper lead clamp (112) formed on its rear side, and the lower shell (12) has a lower lead clamp (122) formed on its rear side. The upper lead clamp (112) and the lower lead clamp (122) are respectively semi-enclosed. When the upper shell (11) and the lower shell (12) are assembled, the upper lead clamp (112) and the lower lead clamp (122) are assembled to form a lead wire connector (10). The outer side of the lead wire connector (10) is formed with a lead wire hole (101). The lead wire connector (10) is centered, left-side or right-side.
4. The connector with a reinforced waterproof and moisture-proof structure according to claim 3, characterized in that: The lead hole (101) is provided with a lead sleeve, which includes a sealing ring made of elastic rubber to improve the airtightness between the lead hole (101) and the lead.