Waterproof FAKRA female coaxial connector
By setting an observation window and optimizing the structural design on the waterproof FAKRA female coaxial connector, the problem of difficulty in observing waterproof performance of traditional connectors has been solved, achieving the effect of quickly judging and improving waterproof performance, signal stability and corrosion resistance.
Patent Information
- Application Number
- CN202422624754.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The waterproof structure of traditional waterproof FAKRA female coaxial connectors is hidden inside the connector and is difficult to observe directly. This makes it difficult for users to quickly and accurately determine whether it has waterproof function, increasing the risk of misuse.
An observation window is provided on the connector housing to expose the waterproof ring, and the design of the snap-fit groove and snap-fit ensures the structural stability. The combination of rubber convex ring and waterproof grease enhances the waterproof performance, and the gold-plated layer at the end of the center pin improves signal stability.
This allows users to intuitively judge the accuracy of the connector's waterproof function, reducing the risk of misuse, improving the connector's waterproof performance, signal transmission stability, and corrosion resistance, and ensuring stable operation in harsh environments.
Smart Images

Figure CN223552745U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, and more specifically, to a waterproof FAKRA female coaxial connector. Background Technology
[0002] With the rapid development of automotive electronics technology, especially in areas such as in-vehicle cameras, navigation systems, and autonomous driving assistance systems, the performance requirements for connectors are increasing. Waterproofing is a key factor in ensuring the stable operation of connectors in harsh environments (such as rain and car washes). However, traditional waterproof FAKRA female coaxial connectors have some design and usage issues, particularly in the lack of intuitive identification of their waterproofing performance.
[0003] Currently, the waterproof structure of FAKRA connectors on the market is often hidden inside the connector, making it difficult to observe directly. This makes it difficult for users to quickly and accurately determine whether a connector is waterproof during installation or use, increasing the risk of misuse. Using a non-waterproof connector in an application requiring waterproofing could lead to signal transmission interruption, equipment damage, or even more serious safety issues. Utility Model Content
[0004] The purpose of this invention is to provide a waterproof FAKRA female coaxial connector to address the problem mentioned in the background section that the waterproof structure of currently available waterproof FAKRA connectors is often hidden inside the connector and difficult to observe directly. This makes it difficult for users to quickly and accurately determine whether the connector has waterproof functionality when installing or using it, thus increasing the risk of misuse.
[0005] To achieve the above objectives, this utility model provides a waterproof FAKRA female coaxial connector, including a housing, an outer conductor installed inside the housing, a center pin installed inside the outer conductor, an observation window on one side of the housing, a waterproof ring installed on the outer conductor near the observation window, a snap-fit groove on the other side of the housing, a snap-fit groove with a snap-fit fastened to the outside of the outer conductor.
[0006] Preferably, a pressure tube is provided between the outer side of the center pin and the inner wall of the outer conductor.
[0007] Preferably, the buckle has a U-shaped structure, and the inner wall of the buckle is provided with an arc-shaped groove, which engages with the outer conductor.
[0008] Preferably, the outer wall of the waterproof ring is fitted with two raised rings, which are made of rubber.
[0009] Preferably, the outer surface of the outer conductor is provided with at least one anti-slip texture.
[0010] Preferably, the end of the center pin is provided with a gold-plated layer to improve the stability and corrosion resistance of signal transmission.
[0011] Preferably, the edges of the latching slot are chamfered to facilitate the smooth installation and removal of the latch, while reducing potential damage to the housing during operation.
[0012] Preferably, an annular groove is formed between the convex rings of the waterproof ring, and the annular groove is filled with waterproof grease to enhance waterproof performance and smooth installation.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] In this waterproof FAKRA female coaxial connector, an observation window on the outer shell allows users to directly observe the internal waterproof structure, particularly the presence or absence of the waterproof ring, enabling them to quickly and accurately determine whether the connector is waterproof. This design significantly reduces the risk of misusing connectors that lack waterproof capabilities, improving the safety and reliability of connector use.
[0015] Meanwhile, while maintaining the excellent performance of traditional FAKRA female coaxial connectors, this utility model further improves the signal transmission stability, corrosion resistance, and installation smoothness of the connector by optimizing the structural design, such as setting a wire clamp, adopting a U-shaped snap-fit structure, and setting a convex ring on the waterproof ring and filling it with waterproof grease. This allows the connector to maintain stable working performance even in harsh environments. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the waterproof ring in this utility model;
[0019] Figure 4 This is a schematic diagram of the buckle structure in this utility model.
[0020] The meanings of the labels in the diagram are as follows:
[0021] 1. Outer casing; 11. Observation window; 12. Clip groove; 2. Outer conductor; 21. Waterproof ring; 211. Raised ring; 3. Clip; 31. Clip groove; 4. Center pin; 5. Crimping tube. Detailed Implementation
[0022] 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.
[0023] This utility model provides a waterproof FAKRA female coaxial connector, such as... Figures 1-4 As shown, the connector includes a housing 1, an outer conductor 2 installed inside the housing 1, and a center pin 4 installed inside the outer conductor 2. An observation window 11 is provided on one side of the housing 1, and a waterproof ring 21 is installed on the outer conductor 2 near the observation window 11. A snap-fit groove 12 is provided on the other side of the housing 1, and a snap-fit 3 is installed in the snap-fit groove 12, snapping onto the outside of the outer conductor 2. The observation window 11 on the connector housing 1 allows users to directly observe the waterproof structure inside the connector, especially the presence or absence of the waterproof ring 21, thus quickly and accurately determining whether the connector has waterproof functionality, greatly improving ease of use and safety. The waterproof ring 21 installed near the observation window 11 on the outer conductor 2 effectively enhances the connector's waterproof performance, ensuring stable operation in harsh environments (such as rain, car washes, etc.) and preventing moisture infiltration that could cause signal transmission interruption or equipment damage. Through the design of the snap-fit groove 12 and the snap-fit 3, the snap-fit 3 can be firmly snapped onto the outside of the outer conductor 2, enhancing the structural stability of the connector and preventing the connector from loosening or falling off due to vibration or external force during use.
[0024] In this embodiment, a wire clamping tube 5 is provided between the outer side of the center pin 4 and the inner wall of the outer conductor 2 to facilitate clamping and fixing the connector.
[0025] Specifically, the buckle 3 has a U-shaped structure, and the inner wall of the buckle 3 is provided with an arc-shaped groove 31. The groove 31 engages with the outer conductor 2 to facilitate clamping and fixing the outer conductor 2.
[0026] Furthermore, the outer wall of the waterproof ring 21 is fitted with two raised rings 211, which are made of rubber to improve the waterproof effect.
[0027] Furthermore, the outer surface of the outer conductor is provided with at least one anti-slip texture to improve the anti-slip effect.
[0028] Furthermore, the end of the center pin 4 is plated with gold to improve the stability and corrosion resistance of signal transmission.
[0029] Furthermore, the edges of the latching groove 12 are chamfered to facilitate the smooth installation and removal of the latch 3, while reducing potential damage to the housing 1 during operation.
[0030] Furthermore, an annular groove is formed between the protrusions 211 of the waterproof ring 21, and the annular groove is filled with waterproof grease to enhance waterproof performance and smooth installation.
[0031] In use, the waterproof FAKRA female coaxial connector of this invention features a specially designed observation window 11 on the connector housing 1. This design allows users to directly observe the condition of the internal waterproof ring 21 through the window without disassembling the connector. The waterproof ring 21, made of rubber and featuring two raised rings 211, is installed on the outer conductor 2 near the observation window 11. These raised rings further enhance the waterproof effect. The annular groove formed between the raised rings is filled with waterproof grease, which not only enhances the waterproof performance but also improves the smoothness of installation.
[0032] On the other side of the outer casing 1, there is a snap-fit groove 12. The snap-fit 3 has a U-shaped structure with an arc-shaped groove 31 on its inner wall. During installation, the snap-fit 3 is tightly engaged with the outer conductor 2 through the groove 31, ensuring the connector structure is stable and preventing loosening or detachment due to vibration or external force during use. The edge of the snap-fit groove 12 is chamfered to facilitate the smooth installation and removal of the snap-fit 3, while reducing potential damage to the outer casing 1.
[0033] The center pin 4 is installed inside the outer conductor 2 for signal transmission. A crimping tube 5 is provided between the outer side of the center pin 4 and the inner wall of the outer conductor 2 to facilitate clamping and fixing the connector, ensuring the stability of signal transmission. The end of the center pin 4 is gold-plated, which not only improves the stability of signal transmission but also enhances corrosion resistance and extends the service life of the connector.
[0034] During installation, first ensure that the center pin 4 is correctly connected to the inner part of the outer conductor 2 via the crimp tube 5. Then, install the waterproof ring 21 onto the outer conductor 2 near the observation window 11, ensuring that the waterproof grease in the protrusion 211 and the annular groove is correctly filled. Next, place the entire outer conductor 2 into the housing 1, and securely fix the outer conductor 2 to the housing 1 using the engagement of the snap-fit slot 12 and snap-fit 3. Finally, check through the observation window 11 to ensure that the waterproof ring 21 is properly installed. Once the connector is confirmed to have waterproof functionality, it is ready for use.
[0035] This invention, through the aforementioned design, achieves a comprehensive improvement in the connector's waterproof performance, structural stability, signal transmission stability, and corrosion resistance. Whether in harsh environments such as rain or car washes, or under vibration conditions during vehicle operation, it ensures stable connector operation, prevents moisture ingress and signal interruption, and guarantees the normal operation of the automotive electronic system.
[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A waterproof FAKRA female coaxial connector, comprising a housing (1), characterized in that: An outer conductor (2) is installed inside the outer casing (1), and a center pin (4) is installed inside the outer conductor (2). An observation window (11) is provided on one side of the outer casing (1), and a waterproof ring (21) is installed on the outer conductor (2) near the observation window (11). A buckle groove (12) is provided on the other side of the outer casing (1), and a buckle (3) is installed in the buckle groove (12). The buckle (3) is fastened to the outside of the outer conductor (2).
2. The waterproof FAKRA female coaxial connector according to claim 1, characterized in that: A pressure tube (5) is provided between the outside of the center needle (4) and the inner wall of the outer conductor (2).
3. The waterproof FAKRA female coaxial connector according to claim 1, characterized in that: The buckle (3) has a U-shaped structure and an arc-shaped groove (31) is provided on the inner wall of the buckle (3). The groove (31) is engaged with the outer conductor (2).
4. The waterproof FAKRA female coaxial connector according to claim 1, characterized in that: The outer wall of the waterproof ring (21) is fitted with two raised rings (211), which are made of rubber.
5. The waterproof FAKRA female coaxial connector according to claim 1, characterized in that: The outer surface of the outer conductor is provided with at least one anti-slip texture.
6. The waterproof FAKRA female coaxial connector according to claim 1, characterized in that: The end of the central needle (4) is plated with gold.
7. The waterproof FAKRA female coaxial connector according to claim 1, characterized in that: The edge of the buckle groove (12) is chamfered.
8. The waterproof FAKRA female coaxial connector according to claim 1, characterized in that: An annular groove is formed between the convex rings (211) of the waterproof ring (21), and the annular groove is filled with waterproof grease.