Data line with tensile structure

Abstract

The utility model discloses a data line with a tensile structure, which belongs to the technical field of electronic accessories and comprises a metal terminal used for being connected with the outside to transmit data and supply power, and a connector shell used for protecting an internal conductive part is mounted at the end part of the metal terminal. The end, away from the metal terminal, of the connector shell is connected with a connector tail transition sleeve used for dispersing stress during plugging and bending, and insulated wires used for data transmission and power supply are installed in the connector shell and the connector tail transition sleeve. The data line can effectively bear main axial tension of a line body, prevents the insulated wires from being fractured due to tensile force, greatly prolongs the service life, is particularly suitable for use scenes which are frequently moved and are easy to pull, and can be widely applied to the field of data transmission. And the tensile property of the wire body is obviously improved.

Description

Technical Field

[0001] This utility model belongs to the field of electronic component technology, and in particular to a data cable with a tensile strength structure. Background Technology

[0002] In daily use, existing data cables often break due to accidental pulling (such as accidentally pulling while charging or tangling while carrying), causing the connector to crack at the connection point with the cable body. This can lead to problems such as charging interruption and data transmission failure. When the tensile strength is weak, it is easy to break due to stretching, which greatly shortens the service life of the data cable. It is not suitable for use scenarios with frequent movement and easy stretching, and the tensile performance of the cable body is reduced.

[0003] A search revealed a Chinese patent document (authorization announcement number CN221687259U). This utility model provides a data cable with a tensile-resistant structure. This design uses a carbon fiber mesh connected to the data cable body to transfer the tensile force to the outside of the carbon fiber mesh when the data cable body is stretched. Since carbon fiber can withstand strong tensile forces, the outside of the data cable body and the power cord will not break. This device can meet basic usage requirements, but its tensile strength is weak, making it prone to breakage due to stretching, which significantly shortens the service life of the data cable. It is not suitable for usage scenarios involving frequent movement and easy stretching, and the tensile performance of the cable body is reduced. Utility Model Content

[0004] The purpose of this invention is to provide a data cable with a tensile-resistant structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a data cable with a tensile-resistant structure, including metal terminals for connecting to the outside for data transmission and power supply, wherein the end of the metal terminals is fitted with a connector shell for protecting the internal conductive components;

[0006] The end of the connector housing away from the metal terminal is connected to a connector tail transition sleeve for dispersing stress during insertion, removal, and bending. Insulated wires for data and power transmission are installed inside the connector housing and the connector tail transition sleeve. A shielding layer for reducing external electromagnetic interference and ensuring stable data transmission is installed on the outer periphery of the insulated wires. Multiple annular tensile rings for limiting the insulated wires are installed on the outer periphery of the shielding layer. Multiple central tensile cores for increasing the structural integrity of the annular tensile rings are connected between the multiple annular tensile rings.

[0007] Preferably, the outer periphery of the annular tensile ring is equipped with a fixing bracket for compressing the annular tensile ring, and the fixing bracket is equipped with a plurality of ultrafine aramid fiber tensile ribs to assist the central tensile core in bearing the tensile force.

[0008] Preferably, the interior of the transition sleeve at the end of the connector and the outer periphery of the insulated wire are filled with closed-cell EVA foam for protection.

[0009] Preferably, a honeycomb skeleton for achieving a rigid support structure is installed on the side of the transition sleeve at the tail of the connector away from the outer shell, and multiple impact rings for resisting tensile forces are connected to the outer periphery of the honeycomb skeleton.

[0010] Preferably, a tapered dustproof tensile sleeve is installed on the side of the honeycomb skeleton away from the transition sleeve at the end of the connector to enhance tensile strength during insertion and removal, and an annular reinforcing rib is installed on the end of the tapered dustproof tensile sleeve away from the honeycomb skeleton to prevent the insulated wire from bending and breaking.

[0011] Preferably, the side of the annular reinforcing rib is connected with a plurality of transverse tensile ribs for bearing the main axial tensile force of the line.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0013] This data cable features a tensile-resistant structure, thanks to its design including a fixed bracket, ultra-fine aramid fiber tensile ribs, annular tensile rings, and a central tensile core. The outer fixed bracket compresses the annular tensile rings, ensuring a tight fit between the rings and the shielding layer, preventing displacement of the insulated wires during stretching. The annular tensile rings also provide radial restraint to the insulated wires, reducing localized stress concentration. The internal central tensile core connects multiple annular tensile rings, forming an axial tensile main frame, while the ultra-fine aramid fiber tensile ribs further assist in load-bearing and disperse tensile force. This structure effectively withstands the main axial tensile force on the cable, preventing the insulated wires from breaking due to tension, significantly extending the data cable's lifespan. It is particularly suitable for applications involving frequent movement and tensile stress, achieving a significant improvement in the cable's tensile resistance.

[0014] This data cable features a tensile-resistant structure. Thanks to its honeycomb skeleton and impact ring design, the tapered transition sleeve at the connector end disperses the stress generated by insertion, removal, and bending from the connector shell to the cable body, preventing stress concentration. The internal closed-cell EVA foam cushions impacts and reduces hard friction between the insulated wires and the transition sleeve. The honeycomb skeleton provides rigid support to prevent deformation of the transition sleeve, while the outer impact ring further resists tensile forces. This structure effectively reduces the probability of damage at the connector-to-cable connection, ensuring the stability of data transmission and power supply, while also improving the data cable's resistance to bending and tensile forces. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] In the diagram: 1. Metal terminal; 101. Connector housing; 102. Connector tail transition sleeve; 103. Insulated wire; 2. Shielding layer; 201. Fixing bracket; 202. Ultra-fine aramid fiber tensile rib; 203. Annular tensile ring; 204. Central tensile core; 3. Honeycomb skeleton; 301. Impact ring; 302. Conical dustproof tensile sleeve; 303. Annular reinforcing rib; 304. Transverse tensile rib. Detailed Implementation

[0023] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0024] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0025] like Figures 1 to 5 The data cable shown has a tensile-resistant structure, including a metal terminal 1 for connecting to the outside for transmitting data and power supply, and a connector housing 101 for protecting the internal conductive parts is installed at the end of the metal terminal 1.

[0026] The end of the connector housing 101 away from the metal terminal 1 is connected to a connector tail transition sleeve 102 for dispersing stress during insertion, removal, and bending. Insulated wires 103 for data and power transmission are installed inside the connector housing 101 and the connector tail transition sleeve 102. The metal terminal 1, as a direct connection component to external devices (such as chargers or mobile phone interfaces), conducts external power or data signals into the data line through its own conductivity. The insulated wire 103, as the core transmission carrier, transmits the power / data signals received by the metal terminal 1 along the line, completing power supply or data interaction. A shielding layer 2 wraps around the insulated wire 103, isolating it from external electromagnetic interference to ensure stable signal transmission and prevent data transmission errors or power fluctuations. A shielding layer 2 is installed around the insulated wire 103 to reduce external electromagnetic interference and ensure stable data transmission. Multiple annular tensile rings 203 for limiting the insulated wire 103 are installed around the shielding layer 2. Multiple central tensile cores 204 are connected between the multiple annular tensile rings 203 to increase their structural integrity.

[0027] A fixing bracket 201 for compressing the annular tensile ring 203 is installed on the outer periphery of the annular tensile ring 203. Multiple ultrafine aramid fiber tensile ribs 202 are installed inside the fixing bracket 201 to assist the central tensile core in bearing tensile force. Closed-cell EVA foam for protection is filled between the interior of the transition sleeve 102 at the end of the connector and the outer periphery of the insulated wire 103. The annular tensile ring 203 is fitted around the outer periphery of the shielding layer 2, forming a radial limit on the internal insulated wire 103 and shielding layer 2, preventing localized stress concentration due to wire displacement during tension. The central tensile core 204 connects multiple annular tensile rings 203, dispersing the annular knots... The components are connected in series to form a whole, which enhances the axial tensile strength of the wire. When the wire is under tension, the central tensile core 204 directly bears the main tensile force, preventing the insulated wire 103 from being excessively stretched. The fixing bracket 201 squeezes the annular tensile ring 203 from the outer periphery, so that the annular tensile ring 203 is tightly attached to the central tensile core 204 and the shielding layer 2, forming a rigid structure of "peripheral fixing - central series connection", which reduces the relative displacement of components during tension. The ultra-fine aramid fiber tensile rib 202 is installed inside the fixing bracket 201 and works in synergy with the central tensile core 204. Through multiple bundles of fibers, the axial tensile force is dispersed, further improving the overall tensile strength of the wire.

[0028] A honeycomb skeleton 3 for achieving a rigid support structure is installed on the side of the connector tail transition sleeve 102 away from the connector housing 101. Multiple impact rings 301 for resisting tensile forces are connected to the outer periphery of the honeycomb skeleton 3. A tapered dustproof tensile sleeve 302 for enhancing tensile strength during insertion and removal is installed on the side of the honeycomb skeleton 3 away from the connector tail transition sleeve 102. The connector tail transition sleeve 102 connects the connector housing 101 and the cable body. Its special shape (usually a tapered transition) disperses the stress during insertion, removal, or bending from the connector housing 101 to the cable body, preventing stress concentration at the connection between the connector and the cable body. The connector tail transition sleeve 102 is filled with closed-cell E... VA foam forms a buffer layer between the insulated wire 103 and the inner wall of the transition sleeve. When the wire is stretched or vibrated, the foam absorbs the impact energy through its own elasticity, reducing the hard friction between the insulated wire 103 and the transition sleeve and protecting the wire insulation layer. The honeycomb skeleton 3 is installed on the side of the transition sleeve 102 at the end of the connector away from the connector shell 101. Its honeycomb structure disperses stress through multiple cells, providing rigid support for the connection part and preventing the transition sleeve from deforming due to stretching. The impact ring 301 is connected to the outer periphery of the honeycomb skeleton 3. When the wire is subjected to lateral or oblique tension, the impact ring 301 resists the tensile force through its own toughness, further dispersing the stress to the entire wire.

[0029] The tapered dustproof tensile sleeve 302, located away from the honeycomb skeleton 3, has an annular reinforcing rib 303 installed at one end to prevent the insulated wire 103 from bending and breaking. Multiple transverse tensile ribs 304 are connected to the side of the annular reinforcing rib 303 to withstand the main axial tensile force of the wire. The tapered dustproof tensile sleeve 302 is installed on the side of the honeycomb skeleton 3 away from the transition sleeve. Its tapered structure guides the distribution of external force during insertion and removal, enhancing the tensile strength during insertion and removal and preventing loosening of components at the end due to frequent insertion and removal. The annular reinforcing rib 303 is positioned... At the end of the tapered dustproof tensile sleeve 302, an annular protrusion structure enhances the bending resistance of the wire end, preventing the insulated wire 103 from breaking when frequently bent at the end. The transverse tensile rib 304 is connected to the side of the annular reinforcing rib 303 and is distributed radially, forming an "axial + radial" three-dimensional tensile network with the central tensile core 204 and the ultra-fine aramid fiber tensile rib 202. When the wire is subjected to multi-angle tension, the transverse tensile rib 304 bears part of the transverse tension, preventing the wire from being excessively deformed due to unidirectional force.

[0030] To ensure the long-term stable operation of this data cable with a tensile-resistant structure, targeted measures need to be developed in four aspects: usage, maintenance, material selection, and component compatibility, to mitigate the impact of various factors on the function of the core components, as detailed below:

[0031] In terms of usage, external force should be avoided to prevent damage to the core tensile and transmission structures. When plugging or unplugging, hold the connector housing 101 or the metal terminal 1, rather than pulling the wire directly. Pulling the wire will cause the central tensile core 204 and the ultra-fine aramid fiber tensile rib 202 to be subjected to tensile forces exceeding the design range (the structure is designed to withstand tensile forces of 80-100N), which may lead to the breakage of the tensile rib. It will also disrupt the fit between the annular tensile ring 203 and the fixing bracket 201, causing it to lose its limiting function on the insulated wire 103 and resulting in wire displacement and short circuit. When bending the data cable, ensure that the bending radius is ≥8mm. In particular, avoid "right-angle bends" at the annular reinforcing rib 303 and the transition sleeve 102 at the end of the connector. The former will cause the transverse tensile rib 304 to be damaged due to fatigue, and the latter will cause cracks in the transition sleeve, resulting in the internal closed-cell EVA foam falling off and losing its cushioning protection. When inserting or removing the metal terminal 1, it must be aligned vertically with the interface. Applying force at an angle will cause the metal terminal 1 to deviate from the connection with the internal support, and at the same time, it will generate torque at the connection end of the tapered dustproof tensile sleeve 302 and the honeycomb skeleton 3, causing the impact ring 301 to fall off and weakening the tensile strength of the connector.

[0032] Maintenance should minimize environmental and operational wear and tear on components. Regularly wipe the surface of metal terminal 1 with a dry, soft cloth to remove dust and oxide layers, preventing dust accumulation on the gold / nickel plating layer, which can lead to poor conductive contact and affect data transmission and power supply. Inspect the inner wall of the conical dustproof tensile sleeve 302 monthly. If the dustproof cloth is dusty, gently wipe it with anhydrous alcohol to prevent dust from entering and contaminating the solder joints of the insulated wire 103. Avoid contact between the data cable and liquids or high-temperature environments. Liquid seepage into the connector tail transition sleeve 102 will cause the closed-cell EVA foam to become damp and deteriorate, while high temperatures will soften the fixing bracket 201 (PA66 + glass fiber material) and damage the aluminum foil of the shielding layer 2. The former will cause the annular tensile ring 203 to loosen, and the latter will reduce anti-interference ability. When storing, it should be naturally coiled (diameter ≥ 5cm). Avoid violent winding or stacking heavy objects. Violent winding will cause the ultra-fine aramid fiber tensile ribs 202 to break, and stacking heavy objects will deform the honeycomb structure of the honeycomb skeleton 3, making it unable to support the connector tail transition sleeve 102 and causing the transition sleeve to crack.

[0033] Material selection must strictly adhere to design standards to ensure the basic performance of components meets requirements. Core tensile components are irreplaceable; the central tensile core 204 must use 1000D aramid fiber bundles (ordinary nylon thread has only 1 / 3 the tensile strength and is easily broken); the ultra-fine aramid fiber tensile rib 202 must be a compliant product with a 0.2mm diameter, as inferior fibers are prone to detachment and cannot assist in load-bearing; structural support components must guarantee strength; the fixing bracket 201 uses PA66 + 30% glass fiber material (ordinary ABS plastic is easily brittle at low temperatures); the honeycomb skeleton 3 uses 0.8mm thick PP honeycomb board (thin boards lack rigidity and cannot support the transition sleeve); buffer and protective materials must meet specific characteristics, with the closed-cell EVA foam density inside the transition sleeve 102 at the joint tail ≥30kg / m³. 3(Low-density foam is easily compressed and deformed), the conical dustproof tensile sleeve 302 is made of TPU material with a Shore hardness of 75A (too high hardness results in loss of elasticity, too low hardness leads to easy wear).

[0034] The fit between components must be precise to avoid assembly gaps affecting functionality. The assembly gap between the fixed bracket 201 and the annular tensile ring 203 must be ≤0.1mm. If the gap is too large, the annular tensile ring 203 will shift radially when stretched, and will not be able to limit the insulated wire 103. The fit can be enhanced by filling the small gap with hot melt adhesive. The central tensile core 204 and the annular tensile ring 203 need to be double fixed by "braiding + bonding" (braiding length ≥5mm and epoxy resin coating). Simple wrapping will cause the connection to loosen, and the annular tensile ring 203 will not be able to be connected in series when stretched, resulting in localized stress concentration on the wire body and cracking of the shielding layer 2. The closed-cell EVA foam must fill the gap between the connector tail transition sleeve 102 and the insulated wire 103. Incomplete filling will create a cavity, causing the wire to rub hard against the transition sleeve and wear down the insulation layer. The honeycomb skeleton 3, the connector tail transition sleeve 102, and the impact ring 301 must be tightly connected with hot melt adhesive. Loose connection will prevent the honeycomb skeleton 3 from providing rigid support, and the impact ring 301 will not be able to effectively resist lateral tension, resulting in deformation and cracking of the transition sleeve. By taking the above measures, the impact of various factors on the operation of the data cable can be completely avoided, ensuring its long-term stable operation.

[0035] Working principle

[0036] This data cable with a tensile-resistant structure, during use, first connects to an external device via metal terminals 1, establishing the basic connection for data transmission and power supply. The connector housing 101 protects the metal terminals 1 and internal conductive components from external damage. Insulated wires 103 transmit power and data within the connector housing 101 and the connector tail transition sleeve 102. The outer shielding layer 2 reduces external electromagnetic interference, ensuring stable transmission. When the data cable is stretched or bent, the tensile-resistant structure works in concert. The connector tail transition sleeve 102 disperses stress generated by insertion, removal, and bending. The closed-cell EVA foam between the sleeve and the insulated wire 103 further buffers impact and protects the wire. Multiple annular tensile rings 203 on the outer periphery of the shielding layer 2 limit the insulated wire 103, preventing displacement. Multiple central tensile cores 204 connect to the annular tensile rings 203, enhancing the structure and bearing some of the tensile force. The fixing bracket 201 on the outer periphery of the annular tensile ring 203 compresses the annular tensile ring 203, making it fit snugly against the internal structure. The internal ultra-fine aramid fiber tensile ribs 202 assist the central tensile core 204 in bearing tensile force. The honeycomb skeleton 3 provides rigid support for the transition sleeve 102 at the end of the connector, away from the connector shell 101. The outer impact ring 301 resists tensile force. The tapered dustproof tensile sleeve 302 enhances the tensile strength during insertion and removal. The annular reinforcing rib 303 at its end prevents the insulated wire 103 from bending and breaking. The transverse tensile ribs 304 on the side of the annular reinforcing rib 303 bear the main axial tensile force of the wire body, comprehensively improving the tensile performance of the data cable and ensuring its stable operation.

[0037] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A data line having a tensile-resistant structure, comprising a metal terminal (1) for transmitting data and power supply in connection with the outside, characterized in that: The end of the metal terminal (1) is provided with a joint shell (101) for protecting the internal conductive part; The joint shell (101) is connected with a joint tail transition sleeve (102) for dispersing stress during plugging and bending away from one end of the metal terminal (1), the inside of the joint shell (101) and the joint tail transition sleeve (102) is provided with an insulated wire (103) for transmitting data and power supply, the outer periphery of the insulated wire (103) is provided with a shielding layer (2) for reducing external electromagnetic interference and ensuring stable data transmission, the outer periphery of the shielding layer (2) is provided with a plurality of annular tension rings (203) for limiting the insulated wire (103), a plurality of central tension cores (204) for increasing the structural of the annular tension ring (203) are connected between a plurality of the annular tension rings (203).

2. The data line with anti-stretch structure according to claim 1, characterized in that: The outer periphery of the annular tension ring (203) is provided with a fixed card frame (201) for extruding the annular tension ring (203), the inside of the fixed card frame (201) is provided with a plurality of ultra-fine aramid fiber tension bars (202) for assisting the central tension core to bear tension.

3. The data line with anti-stretch structure according to claim 1, characterized in that: The inside of the joint tail transition sleeve (102) and the outer periphery of the insulated wire (103) are filled with closed-cell EVA foam for protection.

4. The data line with anti-stretch structure according to claim 1, characterized in that: The side of the joint tail transition sleeve (102) away from the joint shell (101) is provided with a honeycomb framework (3) for realizing a rigid support structure, the outer periphery of the honeycomb framework (3) is connected with a plurality of impact rings (301) for resisting tensile force.

5. The data line with tensile-resistant structure according to claim 4, characterized in that: The side of the honeycomb framework (3) away from the joint tail transition sleeve (102) is provided with a conical dustproof tension sleeve (302) for enhancing the tensile force during plugging, the end of the conical dustproof tension sleeve (302) away from the honeycomb framework (3) is provided with an annular reinforcing rib (303) for preventing the insulated wire (103) from being bent and broken.

6. The data line with tensile-resistant structure according to claim 5, characterized in that: The side of the annular reinforcing rib (303) is connected with a plurality of transverse tension bars (304) for bearing the main axial tension of the wire body.

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