A waterproof connector interface

By designing a waterproof connector interface, employing a shell, hole-type connector, top cover, and tail cover structure, combined with a sealing ring and snap-fit ​​design, the problem of insufficient waterproofing of conventional connectors in water-related environments is solved, achieving convenience and safety in charging automotive batteries.

CN224458755UActive Publication Date: 2026-07-03WENZHOU FENGDI CONNECTOR

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU FENGDI CONNECTOR
Filing Date
2025-08-14
Publication Date
2026-07-03

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    Figure CN224458755U_ABST
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Abstract

The utility model belongs to the technical field of automobile parts, especially relates to a waterproof connector interface, it includes shell, hole type joint, upper cover and tail cover, hole type joint is installed in the inside of shell, upper cover is installed on the upper end opening of shell, shell lower extreme is provided with wire harness pipe, tail cover is installed at wire harness pipe department, the shell of the utility model only has two open mouths with the outside, one is the opening of shell upper end, is used for charging, the waterproof function is played after upper cover is closed, and the upper cover that is easy to open and close can not influence charging action, the other is the wire harness pipe of shell lower end, is used for wire harness to pass through, tail cover not only can assist wire harness to be fixed in wire harness pipe, also can play certain waterproof function at wire harness department, thereby realizes the waterproof demand of equipment whole.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and in particular relates to a waterproof connector interface. Background Technology

[0002] To meet the charging needs of car batteries in case of malfunction or other reasons, a dedicated charging connector is usually installed on the battery. This can improve the convenience and safety of car battery management, and is especially suitable for scenarios that frequently require external power. However, some vehicles have certain water immersion requirements due to usage needs, and conventional connectors cannot meet this protection requirement.

[0003] This utility model designs a waterproof connector interface to solve the above problems. Utility Model Content

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A waterproof connector interface includes a housing, a hole-type connector, a top cover, and a tail cover. The hole-type connector is installed inside the housing, the top cover is installed above the opening at the upper end of the housing, a wire harness tube is provided at the lower end of the housing, and the tail cover is installed at the wire harness tube.

[0006] As a preferred embodiment, the upper end of the outer shell is provided with an annular groove located outside the opening, and a first sealing ring is installed in the annular groove, the first sealing ring being in contact with the lower end face of the upper cover.

[0007] As a preferred embodiment, a second sealing ring is installed inside the wire harness tube. The lower end of the second sealing ring extends to the lower side of the wire harness tube and is provided with an outwardly expanding sealing ring. The outwardly expanding sealing ring abuts between the lower end of the outer wall of the wire harness tube and the inner wall of the wire harness tube.

[0008] As a preferred embodiment, the outer wall of the wire harness tube is provided with a buckle, and the end cap is provided with a slot that matches the buckle.

[0009] As a preferred embodiment, one end of the top cover is rotatably connected to the outer shell, and a fixed cover that contacts the other end of the top cover is installed on the outer shell.

[0010] As a preferred embodiment, the upper end of the outer shell is provided with a first positioning groove with the opening facing downward, the lower end of the fixing cover is provided with a first fastener extending into the first positioning groove, and the upper end of the fixing cover extends above the upper cover.

[0011] As a preferred embodiment, the other end of the top cover is provided with a second positioning groove with the opening facing upward, and the upper end of the fixed cover is provided with a second fastener extending into the second positioning groove.

[0012] As a preferred embodiment, the inner wall of the outer casing is provided with a fixing groove, and the side of the hole-type connector is fixed in the fixing groove.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] 1. The outer shell of this utility model has only two open openings that communicate with the outside. One of them is the opening at the top of the shell, which is used for charging. When the top cover is closed, it provides a waterproof function, and the easy-to-open and close top cover will not affect the charging operation. The other is the wire harness tube at the bottom of the shell, which is used for the wire harness to pass through. The tail cover can not only help fix the wire harness in the wire harness tube, but also provide a certain degree of waterproof function at the wire harness, thereby meeting the overall waterproof requirements of the device.

[0015] 2. The first sealing ring of this utility model seals the gap between the top cover and the upper end face of the outer shell, further improving the waterproof function at the upper opening of the outer shell. The second sealing ring seals the gap between the wire harness tube and the wire harness, which can also further improve the waterproof function of the wire harness tube at the lower end of the outer shell. In addition, the second sealing ring can also improve the fixing effect of the wire harness in the wire harness tube, making the connection between the whole device and the wire harness more firm and reliable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention.

[0017] Figure 2 This is a bottom view of the present invention.

[0018] Figure 3 This is a schematic diagram of the connection between this utility model and the battery harness.

[0019] Figure 4 This is a cross-sectional schematic diagram of the present invention.

[0020] Figure 5 This is a schematic diagram of the top cover of this utility model.

[0021] The labels in the diagram are as follows: 1. Outer shell; 2. Hole connector; 3. Top cover; 4. Tail cover; 5. Wiring harness tube; 6. Annular groove; 7. First sealing ring; 8. Second sealing ring; 9. Outwardly expanding sealing ring; 10. Buckle; 11. Slot; 12. Fixing cover; 13. First positioning groove; 14. First fastener; 15. Second positioning groove; 16. Second fastener; 17. Fixing groove. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following embodiments or drawings are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0023] A waterproof connector interface, such as Figures 1 to 5As shown, it includes a housing 1, a hole connector 2, a top cover 3, and a tail cover 4. The hole connector 2 is installed inside the housing 1, the top cover 3 is installed above the opening at the top of the housing 1, a wire harness tube 5 is provided at the bottom of the housing 1, and the tail cover 4 is installed at the wire harness tube 5.

[0024] This device is used for charging batteries in heavy trucks and other vehicles. When the battery malfunctions or needs to be charged, it can be safely charged through this interface. The outer casing 1 is bolted to the vehicle body. The battery harness enters the inner casing 1 through the harness tube 5, and the head of the harness is connected to the hole connector 2.

[0025] The outer casing 1 has only two open openings that connect to the outside. One of them is the opening at the top of the outer casing 1, which is used for charging. When the top cover 3 is closed, it provides a waterproof function, and the easy-to-open and close top cover 3 will not affect the charging operation. The other is the wire harness tube 5 at the bottom of the outer casing 1, which is used for the wire harness to pass through. The tail cover 4 can not only help fix the wire harness in the wire harness tube 5, but also provide a certain degree of waterproof function at the wire harness, thereby meeting the overall waterproof requirements of the device.

[0026] like Figure 3 and Figure 4 As shown, the upper end of the outer shell 1 is provided with an annular groove 6 located outside the opening. A first sealing ring 7 is installed in the annular groove 6. The first sealing ring 7 is in contact with the lower end face of the upper cover 3. A second sealing ring 8 is installed inside the wire harness tube 5. The lower end of the second sealing ring 8 extends to the lower side of the wire harness tube 5 and is provided with an outwardly expanding sealing ring 9. The outwardly expanding sealing ring 9 abuts between the lower end of the outer wall of the wire harness tube 5 and the inner wall of the wire harness tube 5.

[0027] The first sealing ring 7 seals the gap between the top cover 3 and the upper surface of the outer casing 1, further improving the waterproof function at the upper opening of the outer casing 1. The second sealing ring 8 seals the gap between the wire harness tube 5 and the wire harness, which can also further improve the waterproof function of the wire harness tube 5 at the lower end of the outer casing 1. In addition, the second sealing ring 8 can also improve the fixing effect of the wire harness in the wire harness tube 5, making the connection between the overall equipment and the wire harness more secure and reliable.

[0028] like Figure 4 As shown, the outer wall of the wire harness tube 5 is provided with a buckle 10, and the tail cap 4 is provided with a slot 11 that matches the buckle 10.

[0029] The buckle 10 engages with the slot 11 to fix the tail cap 4 onto the wire harness tube 5, and the inner wall of the tail cap 4 presses against the second sealing ring 8, so that the second sealing ring 8 fits tightly against the inner wall of the tail cap 4 and the lower end of the outer wall of the wire harness tube 5, thereby improving the waterproof performance.

[0030] like Figure 4 and Figure 5As shown, the right end of the upper cover 3 is rotatably connected to the outer shell 1. A fixed cover 12 that contacts the left end of the upper cover 3 is installed on the outer shell 1. The upper end of the outer shell 1 is provided with a first positioning groove 13 with the opening facing downward. The lower end of the fixed cover 12 is provided with a first fastener 14 extending into the first positioning groove 13. The upper end of the fixed cover 12 extends above the upper cover 3. The left end of the upper cover 3 is provided with a second positioning groove 15 with the opening facing upward. The upper end of the fixed cover 12 is provided with a second fastener 16 extending into the second positioning groove 15.

[0031] The fixed cover 12 has a certain degree of elasticity. The first fastener 14 is inserted into the first positioning groove 13, and the second fastener 16 is inserted into the second positioning groove 15, thereby applying a downward force to the upper cover 3, making the fit between the upper cover 3 and the first sealing ring 7 tighter and improving the waterproof performance of the upper cover 3.

[0032] like Figure 4 As shown, the inner wall of the outer casing 1 is provided with a fixing groove 17, and the side of the hole connector 2 is fixed in the fixing groove 17.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A waterproof connector interface, characterized by: It includes a housing (1), a hole connector (2), a top cover (3) and a tail cover (4). The hole connector (2) is installed inside the housing (1), the top cover (3) is installed above the opening at the upper end of the housing (1), a wire harness tube (5) is provided at the lower end of the housing (1), and the tail cover (4) is installed at the wire harness tube (5).

2. The waterproof connector interface of claim 1, wherein: The upper end of the outer shell (1) is provided with an annular groove (6) located outside the opening, and a first sealing ring (7) is installed in the annular groove (6). The first sealing ring (7) is in contact with the lower end face of the upper cover (3).

3. A waterproof connector interface according to claim 2, wherein: The wire harness tube (5) is equipped with a second sealing ring (8). The lower end of the second sealing ring (8) extends to the lower side of the wire harness tube (5) and is provided with an outer sealing ring (9). The outer sealing ring (9) abuts between the lower end of the outer wall of the wire harness tube (5) and the inner wall of the wire harness tube (5).

4. The waterproof connector interface of claim 3, wherein: The outer wall of the wire harness tube (5) is provided with a buckle (10), and the tail cap (4) is provided with a slot (11) that matches the buckle (10).

5. The waterproof connector interface of claim 2, wherein: One end of the upper cover (3) is rotatably connected to the outer shell (1), and a fixed cover (12) that contacts the other end of the upper cover (3) is installed on the outer shell (1).

6. A waterproof connector interface according to claim 5, wherein: The upper end of the outer shell (1) is provided with a first positioning groove (13) with the opening facing downward, and the lower end of the fixed cover (12) is provided with a first fastener (14) extending into the first positioning groove (13), and the upper end of the fixed cover (12) extends above the upper cover (3).

7. A waterproof connector interface according to claim 6, wherein: The other end of the upper cover (3) is provided with a second positioning groove (15) with the opening facing upward, and the upper end of the fixed cover (12) is provided with a second fastener (16) extending into the second positioning groove (15).

8. A waterproof connector interface according to claim 1, characterized in that: The inner wall of the outer shell (1) is provided with a fixing groove (17), and the side of the hole connector (2) is fixed in the fixing groove (17).