A fakra connector

Abstract

The utility model discloses a FAKRA connector relates to the technical field of connector, including outer conductor, sheath and cable assembly, and outer conductor is "L" structure and its transverse end outside is attached with sealing rubber ring no.

Description

Technical Field

[0001] This utility model relates to the technical field of connectors, specifically to a FAKRA connector. Background Technology

[0002] With the continuous development of communication technology, the demand for connectivity between electronic devices is increasing, especially in fields such as automotive electronics and communication base stations. FAKRA connectors, as a type of high-frequency coaxial RF connector, are widely used in scenarios involving the transmission of RF signals.

[0003] Traditional FAKRA connectors have several design and usage issues. Firstly, regarding sealing performance, traditional connectors typically use assembled sealing rings. This method requires multiple assembly steps, increasing manufacturing costs and assembly difficulty. Furthermore, leaks during assembly can easily occur, leading to lower product stability. Secondly, traditional connectors often employ soldering when assembling cable assemblies. This process is complex, requires skilled operators, and improper soldering can easily result in poor connections, affecting signal transmission quality. Summary of the Invention

[0004] The purpose of this invention is to provide a FAKRA connector to overcome the aforementioned defects in the prior art.

[0005] A FAKRA connector includes an outer conductor, a sheath, and a cable assembly. The outer conductor has an "L" structure and a sealing ring is attached to the outer side of its lateral end. The sheath is fitted over the sealing ring and connected to the outer conductor via a locking element. A crown spring is provided inside the outer conductor cavity, and a rubber core is inserted into the crown spring. A stop ring is provided on the crown spring to limit the upper section of the rubber core. A center pin is inserted into the rubber core. A second rubber core is provided inside the longitudinal end of the outer conductor. The cable assembly is inserted into the outer conductor and the second rubber core, and its upper terminal is inserted into the center pin. A sealing ring is attached between the cable assembly and the inner wall of the outer conductor.

[0006] Preferably, the locking member is made of an elastic material and is inserted into a slot at the bottom of the sheath, and the locking member is provided with a slot that engages with the annular groove on the outer conductor.

[0007] Preferably, an annular petal-shaped structure is provided along the circumference of the outer conductor, and the sheath is provided with a petal-shaped cavity that matches the annular petal-shaped structure.

[0008] Preferably, the cable assembly further includes a wire harness and a clamp, wherein the terminal is crimped onto the center conductor of the wire harness and the clamp is crimped onto the shielding layer of the wire harness.

[0009] Preferably, the second sealing ring is attached to the wire harness, and the second sealing ring is provided with a lug that mates with the groove on the lower end of the outer conductor.

[0010] Preferably, a number of protrusions are evenly distributed along the circumference of the crown spring.

[0011] Preferably, the crown spring has a locking block on its circumference that engages with a positioning groove on the outer conductor.

[0012] The beneficial effects achieved by this utility model are as follows:

[0013] 1. The sealing rings 1 and 2 at both ends of the outer conductor of this application are attached by liquid silicone injection molding, and achieve a sealing effect by interference fit with the male connector and cable assembly. Compared with the traditional assembled sealing rings, this sealing method does not require the separate production of sealing parts and has no subsequent installation process, which saves manufacturing costs and enhances product stability. It can effectively prevent moisture, dust and other substances from entering the connector and extend the service life of the connector.

[0014] 2. The cable assembly is connected to the outer conductor and the core via a plug-in connection. The upper terminal is inserted into the center pin for contact. The outer conductor does not require soldering space or back cover parts, and is integrally formed. This plug-in connection method greatly improves the convenience of assembly operations, reduces the skill requirements of operators, and improves production efficiency. At the same time, it avoids the complex structure of the outer conductor requiring a back cover for soldering operations, simplifies the product structure, and reduces production costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the entire utility model.

[0017] Figure 3 This is an exploded view of the entire utility model.

[0018] Figure 4 This is an exploded view of the outer conductor, crown spring, and rubber core of this utility model.

[0019] Figure 5 This is an exploded view and a finished product view of the outer conductor, sealing ring one, and sealing ring two of this utility model.

[0020] Figure 6 This is an exploded view of the outer conductor and sheath of this utility model.

[0021] Figure 7 This is a schematic diagram of the structure of the sheath of this utility model.

[0022] Figure 8This is a simulation diagram of the rotation of the sheath of this utility model.

[0023] Figure 9 This is an exploded view and a finished product view of the cable assembly of this utility model.

[0024] Figure 10 This is a cross-sectional view of the present invention when connected to a male connector.

[0025] In the diagram, 1. Outer conductor; 11. Sealing ring one; 12. Sealing ring two; 121. Support ear; 13. Annular groove; 14. Positioning groove; 2. Sheath; 21. Slot; 22. Petal-shaped cavity; 3. Locking element; 31. Slot; 4. Crown spring; 41. Stop ring; 42. Boss; 43. Block; 5. Core one; 51. Cross-section; 6. Center pin; 7. Core two; 8. Cable assembly; 81. Terminal; 82. Wire harness; 83. Wire clamp; 9. Male connector. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0028] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] like Figure 1-5As shown, this utility model provides a FAKRA connector, including an outer conductor 1, a sheath 2 and a cable assembly 8. The outer conductor 1 has an "L" structure and a sealing ring 11 is attached to the outer side of its lateral end. The sealing ring 11 and the male connector 9 are interference-fitted to achieve a sealing effect. The sheath 2 is sleeved on the outside of the sealing ring 11 and connected to the outer conductor 1 through a locking member 3.

[0030] like Figure 7 As shown, the locking member 3 is made of elastic material and is inserted into the slot 21 at the bottom of the sheath 2. The locking member 3 is provided with a slot 31 that engages with the annular groove 13 on the outer conductor 1. The sheath 2 and the outer conductor 1 are connected by the locking member 3.

[0031] like Figure 6 As shown, an annular petal-shaped structure is provided along the circumference of the outer conductor 1, and a petal-shaped cavity 22 is provided on the sheath 2 to match the annular petal-shaped structure. It can be rotated at the required angle and can be flexibly rotated by the number of petals n. The rotation angle = 360° / n.

[0032] like Figure 8 In the structure shown, n=8, so the rotation angle = 360° / 8 = 45°. It can be rotated flexibly according to the actual use scenario, and has a clear stopping angle, which has richer and more feasible practical lines to cope with narrow and cramped wiring space.

[0033] The outer conductor 1 cavity is provided with a crown spring 4, and a number of protrusions 42 are evenly distributed along the circumference of the crown spring 4. The protrusions 42 have the function of strengthening the crown spring 4. The circumference of the crown spring 4 is provided with a locking block 43 that is engaged in the positioning groove 14 on the outer conductor 1, so that the entire internal structure is confined within the cavity of the outer conductor 1.

[0034] The crown spring 4 is inserted with a rubber core 5. The crown spring 4 is provided with a stop ring 41 for limiting the upper section 51 of the rubber core 5, thereby preventing the rubber core 5 from falling off. At the same time, it is interconnected with the outer conductor 1 of the male connector 9 to ensure the consistency of the shielding effect.

[0035] A center pin 6 is inserted into the core 5. The center pin 6 is interconnected with the center conductor of the male connector 9 to ensure the consistency of the transmitted signal.

[0036] The longitudinal end of the outer conductor 1 is provided with a second rubber core 7. The cable assembly 8 is inserted into the outer conductor 1 and the second rubber core 7, and its upper terminal 81 is inserted into the center pin 6. This connection method is different from the traditional welding process, which greatly improves the ease of operation and avoids the complex structure that the outer conductor 1 must have a back cover for welding operation.

[0037] Both core 5 and core 7 are used as transmission media and filled in the outer conductor 1;

[0038] A sealing ring 12 is attached between the cable assembly 8 and the inner wall of the outer conductor 1. The sealing ring 12 and the cable assembly 8 are interference-fitted to achieve a sealing effect. Both the sealing ring 11 and the sealing ring 12 are formed by liquid silicone injection molding. Compared with the traditional assembled sealing ring, the assembly process is reduced, the manufacturing cost is saved, and the product stability is enhanced.

[0039] like Figure 9-10 As shown, the cable assembly 8 also includes a wire harness 82 and a wire clamp 83. The terminal 81 is crimped onto the center conductor of the wire harness 82, the wire clamp 83 is crimped onto the shielding layer of the wire harness 82, the sealing ring 12 is sleeved on the wire harness 82, and the sealing ring 12 is provided with a lug 121 that mates with the groove at the lower end of the outer conductor 1. The complete cable assembly 8 is inserted into the cavity of the outer conductor 1.

[0040] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A FAKRA connector, characterized in that: The cable assembly includes an outer conductor (1), a sheath (2), and a cable assembly (8). The outer conductor (1) has an "L" structure and a sealing ring (11) is attached to the outer side of its lateral end. The sheath (2) is fitted on the outer side of the sealing ring (11) and connected to the outer conductor (1) through a locking member (3). A crown spring (4) is provided in the cavity of the outer conductor (1). A rubber core (5) is inserted into the crown spring (4). A stop ring (41) is provided on the crown spring (4) to limit the cross section (51) of the rubber core (5). A center pin (6) is inserted into the rubber core (5). A rubber core (7) is provided inside the longitudinal end of the outer conductor (1). The cable assembly (8) is inserted into the outer conductor (1) and the rubber core (7), and its upper terminal (81) is inserted into the center pin (6). A sealing ring (12) is attached between the cable assembly (8) and the inner wall of the outer conductor (1).

2. A FAKRA connector according to claim 1, characterized in that: The locking member (3) is made of elastic material and is inserted into the slot (21) at the bottom of the sheath (2). The locking member (3) is provided with a slot (31) that engages with the annular groove (13) on the outer conductor (1).

3. A FAKRA connector according to claim 1, characterized in that: An annular petal-shaped structure is provided along the circumference of the outer conductor (1), and a petal-shaped cavity (22) matching the annular petal-shaped structure is provided on the sheath (2).

4. A FAKRA connector according to claim 1, characterized in that: The cable assembly (8) further includes a wire harness (82) and a wire clamp (83), wherein the terminal (81) is crimped onto the center conductor of the wire harness (82) and the wire clamp (83) is crimped onto the shielding layer of the wire harness (82).

5. A FAKRA connector according to claim 4, characterized in that: The sealing ring 2 (12) is attached to the wire harness (82), and the sealing ring 2 (12) is provided with a lug (121) that matches the groove on the lower end of the outer conductor (1).

6. A FAKRA connector according to claim 1, characterized in that: Several protrusions (42) are evenly distributed along the circumference of the crown spring (4).

7. A FAKRA connector according to claim 1, characterized in that: The crown spring (4) is provided with a locking block (43) on its circumference that is engaged in the positioning groove (14) on the outer conductor (1).

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