data line

Abstract

The utility model relates to a kind of data line, belong to the technical field of electronic product accessories, including first data line head, second data line head and wire rod, the connecting place of first data line head and wire rod and / or the connecting place of second data line head and wire rod is set with elastic buffer structure, and elastic buffer structure is composed of several alternately arranged annular protrusions and annular grooves.The utility model discloses a kind of data line, can solve the current data line head and the connecting place of wire rod and is prone to breakage due to internal wire after long-term use.

Description

Technical Field

[0001] This utility model relates to the field of electronic product accessories technology, and in particular to a data cable. Background Technology

[0002] Data cables are indispensable connection accessories in modern electronic devices, typically used to achieve both power and data transmission. Their basic structure generally includes an interface (such as USB, Type-C, Lightning, etc.), internal wires, and an outer protective layer. To meet the needs of different devices and application scenarios, a wide variety of data cables are available on the market, differing not only in interface type, transmission rate, and current carrying capacity, but also in durability, flexibility, and appearance design.

[0003] However, in actual use, users commonly encounter a common problem: the connection between the data cable interface and the cable itself is prone to damage. Since this area is where the cable bends and experiences the most frequent stress, stress concentration at the connection point causes repeated bending of the internal metal wires when the user plugs and unplugs the device, stores it, or uses it improperly. Over time, this can easily lead to fatigue breakage. Once the internal wires break, unstable charging, inability to transmit data, or complete failure can occur, affecting the user experience and increasing replacement costs. Therefore, improving the bending resistance of the connection between the data cable and the cable itself has become a critical issue that urgently needs to be addressed in data cable design. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model proposes a data cable that can solve the problem that the internal wires are prone to breakage at the connection between the data cable head and the cable after long-term use.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The present invention provides a data cable including a first data cable head, a second data cable head, and a cable. An elastic buffer structure is provided at the connection between the first data cable head and the cable and / or at the connection between the second data cable head and the cable. The elastic buffer structure is composed of a plurality of alternating annular protrusions and annular grooves.

[0007] The preferred technical solution of this utility model is that the thickness of the annular protrusion is 0.1-0.3mm, the width of the annular groove is 0.1-0.3mm, and the depth of the annular groove is 0.05-0.2mm.

[0008] The preferred technical solution of this utility model is that the elastic buffer structure is composed of 8-25 alternating annular protrusions and annular grooves.

[0009] The preferred technical solution of this utility model is that the elastic buffer structure is made of a flexible material with a Shore hardness of A40–A60.

[0010] The preferred technical solution of this utility model is that the elastic buffer structure is coated with a wear-resistant coating.

[0011] A preferred embodiment of this invention is that a light-emitting component is provided inside the first data cable head, and the light-emitting component is electrically connected to the circuit components inside the first data cable head.

[0012] The preferred technical solution of this utility model is that the outer shell of the first data cable head is provided with a light guide, which guides the light from the light-emitting component to the outside of the outer shell.

[0013] The preferred technical solution of this utility model is that the light guide component passes through the circuit component, and the light-emitting component is disposed on the circuit component to guide the light emitted by the light-emitting component to the outer sides of the outer shell.

[0014] The preferred technical solution of this utility model is that the light-emitting component is a surface-mount LED.

[0015] The preferred technical solution of this utility model is that the light guide is a one-piece molded polycarbonate part with a frosted texture on its outer surface.

[0016] The beneficial effects of this utility model are:

[0017] This invention proposes a data cable that incorporates an elastic buffer structure at the connection point between the first data cable head and the main cable, and / or at the connection point between the second data cable head and the main cable. The elastic buffer structure consists of several alternating annular protrusions and annular grooves. The annular protrusions provide local support and limit the bending, preventing excessive concentrated deformation when the cable bends at this point. The annular grooves provide local deformation space, allowing bending stress to be distributed longitudinally across multiple groove areas, thus achieving stress dispersion and buffering. This effectively solves the problem of easy breakage of internal conductors at the connection point between the cable head and the main cable in existing data cables during long-term use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of a data cable according to Embodiment 1 of this utility model;

[0020] Figure 2This is a partial three-dimensional representation of a data cable according to Embodiment 1 of the present invention. Figure 1 ;

[0021] Figure 3 This is a left view of a data cable according to Embodiment 1 of this utility model;

[0022] Figure 4 for Figure 3 A partial sectional view along the AA direction.

[0023] Figure 5 This is a partial three-dimensional representation of a data cable according to Embodiment 1 of the present invention. Figure 2 .

[0024] Figure 6 This is a perspective view of the light guide component according to Embodiment 1 of this utility model.

[0025] In the picture:

[0026] 1-First data cable head; 11-Circuit component; 12-Housing shell; 2-Second data cable head; 3-Wire; 4-Elastic buffer structure; 41-Annular protrusion; 42-Annular groove; 5-Light-emitting component; 6-Light guide component. Detailed Implementation

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] This embodiment provides a data cable, such as Figure 1-6 As shown in the attached diagram, the metal wires are omitted from the representation. Figure 5This is a perspective view of the assembled circuit components and light guide components. The data cable in this embodiment includes a first data cable head 1, a second data cable head 2, and a wire 3. An elastic buffer structure 4 is provided at the connection between the first data cable head 1 and the wire 3, and / or at the connection between the second data cable head 2 and the wire 3. The elastic buffer structure 4 consists of several alternately arranged annular protrusions 41 and annular grooves 42. This technical solution effectively solves the problem of easy breakage of the internal conductors at the connection between the cable head and the wire during long-term use of existing data cables by providing an elastic buffer structure between the first data cable head and the wire, and / or between the second data cable head and the wire. Specifically, the data cable includes a first data cable head, a second data cable head, and a wire. The wire contains several metal conductors to achieve the transmission of electrical energy or data, while the cable head is used to establish an electrical connection with external devices. In actual use, when users plug, unplug, or bend the data cable, the connection between the cable head and the wire often bears the greatest bending stress and repeated stress concentration, leading to fatigue damage and breakage of the internal metal conductors. The elastic buffer structure in this design consists of several alternating annular protrusions and annular grooves. The annular protrusions provide local support and restraint, preventing excessive concentrated deformation when the cable bends at that point. The annular grooves provide local deformation space, allowing bending stress to be distributed longitudinally across multiple groove areas, thus achieving stress dispersion and buffering. In other words, when external force is applied to the connection between the data cable head and the cable, the annular protrusions first bear and transmit part of the bending moment, preventing the force from concentrating entirely at the conductor root. The annular grooves, through their recessed structure, provide elastic deformation capability at that location, essentially providing a "buffer zone" for bending. This allows stress to be alternately transmitted and gradually attenuated among the multiple protrusions and grooves. This wave-like elastic structure formed by the annular protrusions and grooves allows the connection to maintain greater flexibility and fatigue resistance during repeated bending, preventing fatigue fracture of the metal conductor due to stress concentration. Meanwhile, the material of the elastic buffer structure is usually a flexible polymer or elastomer, whose own recoverable deformation characteristics further enhance the buffering effect. It can quickly return to its initial state after the external force is removed, without causing permanent stretching or compression to the internal conductor. In summary, this solution utilizes the limiting support of the annular protrusion and the deformation buffer of the annular groove. Through the alternating arrangement of structural units, the bending stress at the connection is effectively dispersed and gradually weakened, thereby significantly improving the fatigue resistance of the connection between the data cable head and the cable, extending the overall service life of the data cable, and solving the prominent problem of easy wire breakage in the prior art. In this embodiment, an elastic buffer structure 4 is provided at the connection between the first data cable head 1 and the cable 3 and the second data cable head 2 and the cable 3.

[0030] Preferably, the thickness a of the annular protrusion 41 is 0.1-0.3 mm, the width b of the annular groove 42 is 0.1-0.3 mm, and the depth c of the annular groove 42 is 0.05-0.2 mm. The "annular protrusion" is a circumferential reinforcing unit located on the elastic element covering the connection between the data cable head and the wire. The "annular groove" is a recessed area formed between the annular protrusions, and the two alternately constitute an elastic buffer structure with gradually changing axial hardness. Limiting the thickness of the annular protrusion to 0.1–0.3 mm allows for stable molding under injection molding or secondary overmolding processes. When the thickness is <0.1 mm, the annular part is prone to collapse, leading to support failure; when it is >0.3 mm, the overall bending radius decreases, and stress is transmitted back to the conductor root. Combined with a groove width of 0.1–0.3 mm and a groove depth of 0.05–0.2 mm, a controllable "deformation cavity" can be formed, providing sufficient elastic stroke for the material, allowing the curvature to be released mainly in the groove area during bending, achieving a mechanical division of labor of "annular part limiting and groove part yielding". Through the above-mentioned size matching, the structure exhibits multi-level slow release under repeated bending at small radii, suppressing the initiation of low-cycle fatigue cracks in the conductor metal and significantly improving the service life of the connection between the two.

[0031] Preferably, the elastic buffer structure 4 consists of 8-25 alternating annular protrusions 41 and annular grooves 42. The elastic buffer structure comprises 8–25 annular protrusion / groove units (referred to as "ring / groove units") arranged axially, the number of which determines the total length of the buffer zone and the stress distribution dispersion. When the number of units is too small (<8), bending mainly concentrates in the 1–2 grooves closest to the wire end, still resulting in high peak stress; when the number is too large (>25), the increased structure affects normal thickness design. The range of 8–25 allows for uniform segmentation with a pitch of approximately 0.4–1.2 mm within common wire end lengths (approximately 10–25 mm).

[0032] Preferably, the elastic buffer structure 4 is made of a flexible material with a Shore A hardness of A40–A60. Shore A hardness reflects the elastomer's resistance to indentation under small deformation and is related to the material's elastic modulus E, resilience, and damping performance. Selecting a flexible TPE / TPU with a Shore A hardness of A40–A60 as the elastic buffer structure can achieve a good balance between the material's flexibility and strength, extending its bending life.

[0033] Preferably, the elastic buffer structure 4 is coated with a wear-resistant coating. Applying a wear-resistant coating (such as polyurethane (PU), UV-cured acrylic, or a transparent coating containing silicon microparticles) to the outer surface of the elastic buffer structure is further preferred, aiming to improve surface wear resistance and cutting resistance, reduce the surface friction coefficient, and form an environmental barrier. This can be achieved through low-temperature spraying or dip coating followed by UV / thermal curing, with a typical dry film thickness of 5–30 μm, maintaining minimal change in elasticity.

[0034] Preferably, a light-emitting component 5 is provided inside the first data cable head 1, and the light-emitting component 5 is electrically connected to the circuit component 11 inside the first data cable head 1. The light-emitting component is preferably a miniaturized light source element, capable of stable light emission and possessing low power consumption characteristics, suitable for embedding in the limited space of the data cable head. Through electrical connection with the circuit component, when the data cable is powered on, the light-emitting component can instantly emit soft light, enabling the data cable head to have a clear visual recognition effect in low-light environments. Compared with traditional cable heads without a light source design, this structure has a stronger decorative and technological feel in appearance. After the data cable is powered on, the light-emitting component converts electrical energy into visible light, which is scattered to the outside through the light-transmitting area or gap of the cable head shell, forming a visual light effect. Since light effect is a highly sensitive feature in visual perception, the human eye pays significantly more attention to light spots or bright bands than to ordinary material cables. Therefore, this design can achieve a significant visual aesthetic effect through simple light source implantation.

[0035] Preferably, the outer shell 12 of the first data cable connector 1 is provided with a light guide 6, which guides the light from the light-emitting component 5 to the outside of the outer shell 12. Placing the light guide in the outer shell of the first data cable connector effectively guides the light from the light-emitting component, which is preferable for improving the reliability and sealing of the light emission indication. The light guide can be made of transparent PC / PMMA through secondary injection molding or snap-fit ​​installation, forming a continuous sealed interface with the outer shell, avoiding weakening the strength of the outer shell by creating an opening.

[0036] Preferably, the light guide 6 passes through the circuit component 11, and the light-emitting component 5 is disposed on the circuit component 11 to guide the light emitted by the light-emitting component 5 to the outer sides of the housing 12. The light guide passing through the circuit component means that a light-passing hole or clearance groove is provided on the circuit component, allowing the light guide to span the thickness of the circuit board and guide the light from the LED on one side to the light-emitting ports on both sides of the housing; the LED is mounted on the circuit component and close to the light-incident surface of the light guide. The structure of the light guide 6 has groove-like structures on both sides of the housing, which facilitates the reflection and diffusion of the emitted light from the light-emitting component within the groove-like structures, forming a unique optical appearance effect. Combined with the flashing of different colored lights, it further enhances the sense of technology.

[0037] Preferably, the light-emitting component 5 is a surface-mount LED. Using surface-mount LEDs (SMD LEDs) as the light-emitting component is a preferred solution for miniaturization, low power consumption, and reliable assembly. SMD devices are typically small in height and can be tightly bonded to the light guide within a limited wire end cavity, shortening the light incident distance.

[0038] Preferably, the light guide 6 is a one-piece polycarbonate molded part with a frosted texture on its outer surface. Using polycarbonate (PC) for the light guide, with a frosted texture on the outer surface, is a preferred solution that balances mechanical strength, optical uniformity, and manufacturing consistency. PC has high impact resistance and good transparency, providing sufficient rigidity even with thin walls, preventing a reduction in overall impact resistance due to openings in the outer shell; the one-piece molding reduces assembly gaps and accumulated tolerances, improving waterproof and dustproof capabilities. The frosted texture, achieved through die-cutting or sandblasting, forms a microscale scattering structure, resulting in a near-Lambertian light distribution, suppressing bright spots and viewing angle sensitivity, while also "masking" minor scratches, maintaining a consistent appearance over the long term and improving the user experience.

[0039] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A data cable, comprising a first data cable head (1), a second data cable head (2), and a cable (3), characterized in that: An elastic buffer structure (4) is provided at the connection between the first data cable head (1) and the wire (3) and / or at the connection between the second data cable head (2) and the wire (3). The elastic buffer structure (4) is composed of several alternating annular protrusions (41) and annular grooves (42).

2. The data cable according to claim 1, characterized in that: The thickness of the annular protrusion (41) is 0.1-0.3 mm, the width of the annular groove (42) is 0.1-0.3 mm, and the depth of the annular groove (42) is 0.05-0.2 mm.

3. The data cable according to claim 1, characterized in that: The elastic buffer structure (4) consists of 8-25 alternating annular protrusions (41) and annular grooves (42).

4. The data cable according to claim 1 or 2, characterized in that: The elastic buffer structure (4) is made of a flexible material with a Shore hardness of A40–A60.

5. The data cable according to claim 1, characterized in that: The elastic buffer structure (4) is coated with a wear-resistant coating.

6. The data cable according to claim 1, characterized in that: The first data cable head (1) is provided with a light-emitting component (5), and the light-emitting component (5) is electrically connected to the circuit component (11) in the first data cable head (1).

7. The data cable according to claim 6, characterized in that: The outer shell (12) of the first data cable head (1) is provided with a light guide (6), which guides the light from the light-emitting component (5) to the outside of the outer shell (12).

8. The data cable according to claim 7, characterized in that: The light guide (6) passes through the circuit component (11), and the light-emitting component (5) is disposed on the circuit component (11) to guide the light emitted by the light-emitting component (5) to the outer sides of the outer shell (12).

9. The data cable according to claim 6, characterized in that: The light-emitting component (5) is a surface-mount LED.

10. The data cable according to claim 7, characterized in that: The light guide (6) is a polycarbonate integral molded part with a frosted texture on its outer surface.

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