Flat coaxial cable assembly

Abstract

The utility model discloses a kind of flat coaxial cable line components in the technical field of flat coaxial cable line, including three cable conductors, the cable conductor outside is wrapped with protective pad cover, protective cap is sleeved with protective pad cover one end, three the cable conductor is connected by coaxial lead-out, two groups of mounting components are installed between protective pad cover and protective cap, the mounting component is used to dismount protective cap, the cable conductor outside is wrapped with protective sleeve, three cable conductors are through coaxial and penetrate protective cap, protective cap is sleeved buckle in protective pad cover one end, can be wrapped protection to cable conductor extension end, the protective sleeve of cable conductor outside can be wrapped and protected to cable conductor, influence cable conductor bending-resistant and shielding protection effect.

Description

Technical Field

[0001] This utility model relates to the field of flat coaxial cables, specifically a flat coaxial cable assembly. Background Technology

[0002] Flat coaxial cable assemblies are widely used in consumer electronics (such as laptops and smartphones), automotive electronics (such as vehicle radar and central control systems), and industrial control (such as precision sensor connections) due to their thinness and high space utilization. Their core function is to achieve stable transmission of high-frequency signals within a limited space. However, existing flat coaxial cable assembly protective structures have significant shortcomings, making it difficult to balance mechanical protection with connection stability. Specific problems include: The outer protective sheath of existing flat coaxial cables is mostly made of single-layer extruded polyvinyl chloride (PVC) or ordinary polyolefin materials, which are not optimized for the stress concentration characteristics of the flat structure. The edges and corners are prone to wear and cracking. When the two sides of the flat cable and the corners where it transitions to the connector are frequently bent (such as when a laptop screen is opened and closed) or vibrated (such as when a car is bumpy), the local stress is 2-3 times that of the round cable. The protective sheath is prone to fatigue cracks, which leads to the exposure of the internal coaxial core wire (inner conductor, insulation layer, shielding layer), which is then corroded by dust and moisture, resulting in increased signal transmission attenuation. Ordinary PVC protective sheaths will harden and become brittle in low-temperature environments, and the tear strength will decrease. Even slight pulling will cause the protective sheath to break. In high-temperature environments, the protective sheath is prone to softening and deformation, losing its support for the internal structure. The shielding layer (such as aluminum foil) is prone to failure due to compression and wrinkling.

[0003] To protect the connectors (such as connectors and terminals) at the ends of cables, existing assemblies often have protective caps fitted to one end of the protective sleeve. However, the connection method has design flaws: simple plug-in connection is prone to loosening: most protective caps only achieve plug-in fixation through the friction between the inner wall and the outer wall of the protective sleeve, without a locking structure. During vibration or plugging / unplugging operations, the protective cap is easy to fall off the protective sleeve, resulting in exposed connectors, which may become contaminated with dust or be damaged by accidental impacts (such as bent pins), increasing the risk of equipment connection failure. Simple locking clips are prone to failure, and the clips are prone to fatigue and breakage after long-term stress. Moreover, the one-sided locking results in a gap between the protective cap and the protective sleeve, allowing moisture and small impurities to still seep in and affect the conductivity of the connector. Therefore, a flat coaxial cable assembly needs to be designed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a flat coaxial cable assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flat coaxial cable assembly, comprising three cable conductors, the outer side of which is wrapped with a protective sleeve, and a protective cap is fitted onto one end of the protective sleeve. The three cable conductors are connected via coaxial connection. Two sets of mounting components are installed between the protective sleeve and the protective cap. The mounting components are used to install and remove the protective cap. The outer side of the cable conductors is wrapped with a protective sleeve.

[0006] Preferably, the mounting component includes two movable cavities respectively opened on both sides of the protective cap, a sliding plate is slidably connected to the inner side of the movable cavity, two locking blocks are fixedly connected to the bottom of the sliding plate, a pull rod is slidably connected through the top of the movable cavity, the bottom of the pull rod is embedded into the inner side of the sliding plate through a fixing part, two springs are fixedly connected between the movable cavity and the sliding plate, and two locking grooves are opened on both sides of the protective pad.

[0007] Preferably, the protective sleeve includes an insulation layer fitted onto the outside of the cable conductor, a reinforcing layer wrapped around the outside of the insulation layer, and a protective layer wrapped around the outside of the reinforcing layer.

[0008] Preferably, a guide rod is fixedly installed inside the movable cavity and inside the spring, and the guide rod passes through the sliding plate and is slidably connected to it.

[0009] Preferably, a connecting strip is fixedly connected to the top of the two pull rods, and a star-shaped screw is threaded through the top of the connecting strip near the center, and the star-shaped screw is threaded to the protective cap.

[0010] Preferably, the protective cap has a limiting strip fixedly connected to both sides inside, and the protective pad has notches on both sides, with the limiting strips slidably connected to the notches.

[0011] Preferably, the inner side of the reinforcing layer is embedded with a plurality of reinforcing ribs arranged in a circular pattern.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The three-strand cable conductors pass through the protective cap via a coaxial cable. The protective cap is snapped onto one end of the protective pad, which can wrap and protect the protruding end of the cable conductor. The protective sleeve on the outside of the cable conductor can wrap and protect the cable conductor, affecting the bending resistance and shielding protection effect of the cable conductor.

[0013] 2. The two springs inside the active cavity can push the sliding plate downwards, causing the locking block at the bottom of the sliding plate to embed into the locking groove to lock and fix the protective pad and protective cap, thereby improving the installation and fixing cap to wrap and protect the protruding end of the cable conductor. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a front sectional perspective view of the overall structure of this utility model; Figure 4 The overall structure of this utility model Figure 3 Enlarged view of point A in the middle; Figure 5 The overall structure of this utility model Figure 3 Enlarged view of section B in the middle.

[0015] In the diagram: 1. Cable conductor; 2. Protective pad; 3. Protective cap; 4. Movable cavity; 5. Sliding plate; 6. Locking block; 7. Pull rod; 8. Fixing part; 9. Spring; 10. Locking groove; 11. Guide rod; 12. Connecting strip; 13. Star screw; 14. Limiting strip; 15. Notch; 16. Reinforcing rib; 101. Insulation layer; 102. Reinforcing layer; 103. Protective layer. Detailed Implementation

[0016] 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.

[0017] Example 1 Please refer to Figure 1-5 As shown, this utility model provides a flat coaxial cable assembly, including three cable conductors 1, a protective sleeve 2 wrapped around the outside of the cable conductors 1, a protective cap 3 fitted onto one end of the protective sleeve 2, the three cable conductors 1 being connected via coaxial connection, two sets of mounting parts installed between the protective sleeve 2 and the protective cap 3, the mounting parts being used for removing and installing the protective cap 3, the cable conductors 1 being wrapped around the outside of the protective sleeve, limit strips 14 being fixedly connected to both sides inside the protective cap 3, and notches 15 being opened on both sides of the protective sleeve 2, the limit strips 14 being slidably connected to the notches 15.

[0018] It should be added that the three-strand cable conductor 1 passes through the protective cap 3 coaxially, and the protective cap 3 is fitted and snapped onto one end of the protective pad 2, which can wrap and protect the protruding end of the cable conductor 1. The protective sleeve on the outside of the cable conductor 1 can wrap and protect the cable conductor 1, but it affects the bending resistance and shielding protection effect of the cable conductor 1.

[0019] Further, both the limiting strip 14 and the notch 15 have a "convex" cross-section, the protective cap is plugged onto one end of the protective pad sleeve 2, and the limiting strips 14 on both inner sides of the protective cap 3 are embedded into the notches 15 to limit and fix the protective cap 3.

[0020] Specifically, the mounting member comprises two movable cavities 4 respectively opened on both sides of the protective cap 3, a sliding plate 5 is slidably connected to the inner side of the movable cavity 4, two locking blocks 6 are fixedly connected to the bottom of the sliding plate 5, a pull rod 7 is penetratingly and slidably connected to the top of the movable cavity 4, the bottom of the pull rod 7 is embedded into the inner side of the sliding plate 5 through a fixing portion 8, two springs 9 are fixedly connected between the movable cavity 4 and the sliding plate 5, two locking grooves 10 are respectively opened on both sides of the protective pad sleeve 2, a guide rod 11 is fixedly installed inside the movable cavity 4 and positioned inside the spring 9, the guide rod 11 penetrates the sliding plate 5 and is slidably connected therewith, a connecting bar 12 is fixedly connected to the tops of the two pull rods 7, a star-shaped screw 13 is penetratingly and threadedly installed at the top of the connecting bar 12 and close to the center, and the star-shaped screw 13 is threadedly installed with the protective cap 3.

[0021] Wherein, the two springs 9 in the movable cavity 4 can squeeze and push the sliding plate 5 downward, so that the locking blocks 6 at the bottom of the sliding plate 5 are embedded into the locking grooves 10 to lock, install and fix the protective pad sleeve 2 and the protective cap 3, which improves the wrapping and protection of the extending end of the cable conductor 1 by the installed protective cap, the connecting bar 12 can drive the sliding plates 5 at the bottoms of the two pull rods 7 to move up and down, the star-shaped screw 13 is threadedly installed with the connecting bar 12 and the protective cap 3, so that the star-shaped screw 13 can lock the locking block 6 again, and improves the stability of installing the protective cap 3.

[0022] More specifically, the protective sleeve comprises an insulating layer 101 sleeved outside the cable conductor 1, a reinforcing layer 102 wraps the outside of the insulating layer 101, a protective layer 103 wraps the outside of the reinforcing layer 102, and a plurality of reinforcing ribs 16 arranged circumferentially are embedded inside the reinforcing layer 102.

[0023] Further, the insulating layer 101 is made of modified polyimide (PI) film, the insulating layer 101 blocks current conduction between the inner conductor (signal transmission layer) and the outer shielding layer / reinforcing layer 102, avoids signal short circuit or electric leakage, and ensures interference-free transmission of high-frequency signals (such as 1-10GHz signals commonly transmitted by flat coaxial cables); the reinforcing layer 102 can make up for the mechanical shortcomings of the insulating layer 101 and the protective layer 103, prevents the cable from being broken by pulling during installation or use (such as dragging during automobile wiring harness assembly), addresses the problem of "edge stress concentration" of flat cables, reduces structural deformation during bending, prolongs the service life, prevents internal conductors and shielding layer from shifting caused by external extrusion of the cable (such as pressing during equipment assembly), and ensures the stability of signal transmission.

[0024] The protective layer 103 blocks external friction, scratches, and impacts, prevents damage to the internal insulation layer 101 and reinforcing layer 102, isolates dust, moisture, and oil, and prevents oxidation and corrosion of the internal metal conductors (inner conductor, shielding layer).

[0025] Working principle: First, the protective cap 3 is placed on the outside of the protective pad 2, and the protective cap 3 protects the end of the cable conductor 1. At the same time, the limiting strips 14 on both sides inside the protective sleeve are embedded in the notch 15. Then, the connecting strip 12 is slowly released. At this time, the two springs 9 in the movable cavity 4 push the sliding plate 5 downward. At the same time, the sliding plate 5 slides on the outside of the guide rod 11. Meanwhile, the locking block 6 at the bottom of the sliding plate 5 is embedded in the locking groove 10 to lock the protective pad 2 and the protective cap 3. Then, the star screw 13 is screwed and fixed to the connecting strip 12 and the protective cap 3.

[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flat coaxial cable assembly, comprising three cable conductors (1), characterized in that: The cable conductor (1) is wrapped with a protective pad (2) on the outside. A protective cap (3) is fitted on one end of the protective pad (2). The three strands of the cable conductor (1) are connected by coaxial connection. Two sets of mounting parts are installed between the protective pad (2) and the protective cap (3). The mounting parts are used to install and remove the protective cap (3). The cable conductor (1) is wrapped with a protective sleeve on the outside.

2. A flat coaxial cable assembly according to claim 1, characterized in that: The mounting component includes two movable cavities (4) respectively opened on both sides of the protective cap (3). A sliding plate (5) is slidably connected to the inside of the movable cavity (4). Two locking blocks (6) are fixedly connected to the bottom of the sliding plate (5). A pull rod (7) is slidably connected through the top of the movable cavity (4). The bottom of the pull rod (7) is embedded in the inside of the sliding plate (5) through a fixing part (8). Two springs (9) are fixedly connected between the movable cavity (4) and the sliding plate (5). Two locking grooves (10) are opened on both sides of the protective pad (2).

3. A flat coaxial cable assembly according to claim 2, characterized in that: The protective sleeve includes an insulation layer (101) fitted on the outside of the cable conductor (1), a reinforcing layer (102) wrapped around the outside of the insulation layer (101), and a protective layer (103) wrapped around the outside of the reinforcing layer (102).

4. A flat coaxial cable assembly according to claim 3, characterized in that: A guide rod (11) is fixedly installed inside the active cavity (4) and inside the spring (9). The guide rod (11) passes through the sliding plate (5) and is slidably connected to it.

5. A flat coaxial cable assembly according to claim 2, characterized in that: The tops of the two pull rods (7) are fixedly connected to a connecting strip (12), and a star-shaped screw (13) is threaded through the top of the connecting strip (12) and near the center. The star-shaped screw (13) is threaded to the protective cap (3).

6. A flat coaxial cable assembly according to claim 2, characterized in that: The protective cap (3) has a limiting strip (14) fixedly connected to both sides inside. The protective pad (2) has notches (15) on both sides. The limiting strip (14) and the notches (15) are slidably connected.

7. A flat coaxial cable assembly according to claim 4, characterized in that: The inner side of the reinforcing layer (102) is provided with a plurality of reinforcing ribs (16) arranged in a circular pattern.

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