Double-floating welding-free radio frequency coaxial connector
By employing a floating, solderless structure for the inner conductor and probes, along with an elastic contact design for the outer conductor and grounding housing, the cumbersome soldering and assembly challenges of RF coaxial connectors are resolved, enabling reliable solderless grounding connections and simplifying the assembly and maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN HAODEXIN MICROWAVE TECH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-01
AI Technical Summary
Existing RF coaxial connectors have complicated soldering processes, are difficult to disassemble and maintain, are costly, and have high assembly difficulty. Furthermore, soldering and rigid crimping may damage the printed circuit board.
The system employs an inner conductor floating solderless structure consisting of an inner conductor and a probe, and an outer conductor floating grounding structure consisting of an outer conductor and a grounding shell. Combined with springs, it achieves elastic contact, avoiding welding and rigid pressing. The floating and elastic contact of the inner and outer conductors solves the problem of poor grounding.
It achieves reliable solderless connection, solves the problem of poor grounding caused by processing errors and printed circuit board deformation, simplifies the assembly process, and reduces maintenance difficulty and cost.
Smart Images

Figure CN224191390U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, and in particular to a dual floating solderless radio frequency coaxial connector. Background Technology
[0002] Radio frequency (RF) coaxial connectors are generally considered to be components that are attached to cables or installed on instruments. As components that electrically connect or disconnect transmission lines, they belong to the category of mechatronic products. Simply put, they mainly act as bridges. RF coaxial connectors are mechatronic products that are usually attached to cables or instruments. As components that electrically connect or disconnect transmission lines, they can effectively transmit electromagnetic wave signals and energy.
[0003] In existing technologies, the common methods for interconnecting connectors with printed circuit boards are soldering, rigid crimping, or using snap fasteners to achieve elastic contact. Soldering is a cumbersome process, and disassembly and maintenance after soldering are troublesome, which may damage the printed circuit board traces. After disassembly, the connector may also be unusable because the solder cannot be cleaned off. Rigid crimping can also cause some damage to the printed circuit board traces. Snap fasteners can achieve elastic solderless contact, but they are expensive, difficult to assemble, and easily damaged. Therefore, a double-floating solderless RF coaxial connector is needed to meet people's needs. Utility Model Content
[0004] The purpose of this invention is to provide a dual-floating, solderless RF coaxial connector to solve the problems mentioned in the background art, such as cumbersome welding process, troublesome disassembly and maintenance after welding, high cost, and difficult assembly process.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-floating solderless radio frequency coaxial connector, comprising an inner conductor, a probe movably mounted on one end of the inner conductor, an insulating medium arranged on the inner conductor and the probe, a shell arranged outside the insulating medium, a grounded shell arranged on one end of the shell, and one end of the probe penetrating the grounded shell.
[0006] Preferably, an outer spring is arranged between the outer casing and the grounded outer casing.
[0007] Preferably, an inner spring is arranged between the inner conductor and the probe.
[0008] The beneficial effects of this utility model are:
[0009] In this invention, the RF connector innovatively embeds a spring inside the inner conductor, which can float axially while engaging with the pinhole, achieving elastic contact. The outer circle of the outer conductor is machined to accommodate the spring and the grounding shell, and a step is machined at the front end of the outer conductor to limit the grounding shell, thus achieving reliable solderless contact of the inner conductor. At the same time, it effectively solves the problem of poor grounding caused by processing errors or printed circuit board deformation. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of a dual-floating solderless radio frequency coaxial connector proposed in this utility model.
[0011] In the diagram: 1. Inner conductor; 2. Probe; 3. Insulating medium; 4. Outer shell; 5. Grounded outer shell; 6. Outer spring; 7. Inner spring. Detailed Implementation
[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0013] Reference Figure 1 A dual-floating solderless RF coaxial connector includes an inner conductor 1, characterized in that: a probe 2 is movably mounted on one end of the inner conductor 1, an insulating medium 3 is arranged on the inner conductor 1 and the probe 2, a shell 4 is arranged on the outside of the insulating medium 3, a grounded shell 5 is arranged on one end of the shell 4, and one end of the probe 2 passes through the grounded shell 5.
[0014] Furthermore, an outer spring 6 is arranged between the outer casing 4 and the grounded outer casing 5.
[0015] Furthermore, an inner spring 7 is arranged between the inner conductor 1 and the probe 2.
[0016] Working principle of this utility model:
[0017] The floating, solderless inner conductor structure consists of one inner conductor, one probe, and one spring. A hole and slot are drilled at the right end of the inner conductor; after aging treatment, this provides excellent elasticity and allows for reliable contact with the probe. The spring is placed inside the hole, pressing against the probe end face to overcome the separation force between the inner conductor and the probe, thus achieving axial floating. A step is machined into the inner hole of the dielectric material to limit the probe and control its floating amount.
[0018] The external conductor floating grounding structure consists of two outer shells and one spring. The outer circumference of the outer shells is machined to accommodate the spring and the grounding shell. A limiting step is machined near the end face of the outer shell to limit the grounding shell's movement and control its floating amount. The grounding shell, after aging treatment, has good elasticity and can achieve reliable contact with the outer shell. The spring is positioned between the outer shell step and the end face of the grounding shell to overcome the friction between the two shells, enabling axial floating.
[0019] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A dual-floating solderless radio frequency coaxial connector, comprising an inner conductor (1), characterized in that: A probe (2) is movably mounted on one end of the inner conductor (1), an insulating medium (3) is arranged on the inner conductor (1) and the probe (2), a shell (4) is arranged on the outside of the insulating medium (3), a grounded shell (5) is arranged on one end of the shell (4), and one end of the probe (2) penetrates the grounded shell (5).
2. The dual-floating solderless RF coaxial connector according to claim 1, characterized in that: An outer spring (6) is arranged between the outer casing (4) and the grounded outer casing (5).
3. The dual-floating solderless RF coaxial connector according to claim 1, characterized in that: An inner spring (7) is arranged between the inner conductor (1) and the probe (2).