Grounding conductive cable structure

A grounding conductive cable structure includes a cable main body, two conductive terminals and a woven mesh layer. The cable main body includes copper wires, silver plated wires, silver wires and oxygen-free copper wires. The total number of these copper wires and the silver plated copper wires is 5,000 to 20,000, and the number of the copper wires is greater than the number of the silver plated copper wires. The conductive terminals are electrically connected to the two opposite ends of the cable main body and electrically connected to those wires. The cable main body is wrapped by the woven mesh layer.

BACKGROUND

1. Field of Disclosure

The present invention relates to a conductive cable structure, and more particularly to a grounding conductive cable structure.

2. Description of Related Art

An electric circuit loop of a traditional vehicle electrical system includes a vehicle battery and some electrical load components (e.g., automobile illumination, ignition system, electronic control unit, sensor, idle speed motor, etc.) therein, and the vehicle battery supplies electrical power to the electrical load components.

However, if electrical conductive efficiency of the electric circuit loop of the traditional vehicle electrical system is not good, the electrical load components cannot be effectively operated so as to reduce overall vehicle performance.

Therefore, how to provide a solution to effectively solve the aforementioned inconvenience and shortages and to increase the competitiveness of industries shall be seriously concerned.

SUMMARY

In one aspect of the present invention is to provide a grounding conductive cable structure to overcome the defects and inconvenience of the prior art.

A grounding conductive cable structure includes a cable main body, two conductive terminals and a woven mesh layer. The cable main body includes a plurality of main-wire bundles, a plurality of subsidiary-wire bundles and an outer layer. Each of the main-wire bundles includes copper wires and silver-plated wires which are twisted in bundles together. The total number of the copper wires and the silver-plated wires is 5,000 to 20,000, and the number of the copper wires is greater than the number of the silver-plated wires. The subsidiary-wire bundles include silver wires, at least one first oxygen-free copper wire and at least one second oxygen-free copper wire. The outer layer wraps the main-wire bundles and the subsidiary-wire bundles together as one. The conductive terminals are respectively coupled to two opposite ends of the cable main body with soldering, and electrically connected to the main-wire bundles and the subsidiary-wire bundles. The woven mesh layer covers the outer layer.

According to one or more embodiments of the present disclosure, a diameter of each of the copper wires is in a range from 0.04 mm to 0.08 mm.

According to one or more embodiments of the present disclosure, a diameter of each of the silver-plated wires is in a range from 0.04 mm to 0.08 mm.

According to one or more embodiments of the present disclosure, each of the silver wires is provided with a shielding layer having Teflon material.

According to one or more embodiments of the present disclosure, a diameter of each of the silver wires is in a range from 1 mm to 2 mm.

According to one or more embodiments of the present disclosure, the grounding conductive cable structure further comprising two tin-silver solder layers, each of the tin-silver solder layers is connected each of the two conductive terminals and one of the two opposite ends of the cable main body.

According to one or more embodiments of the present disclosure, each of the silver wires is a silver wire having 4N purities, each of the first oxygen-free copper wire is an oxygen-free copper wire having 4N purities, and each of the second oxygen-free copper wire is an oxygen-free copper wire having 6N or 7N purities.

According to one or more embodiments of the present disclosure, a diameter of each of the second oxygen-free copper wire is in a range from 0.1 mm to 0.2 mm.

According to one or more embodiments of the present disclosure, the main-wire bundles are arranged between a plurality of the at least one first oxygen-free copper wires and a plurality of the at least one second oxygen-free copper wires, wherein the first oxygen-free copper wires and the second oxygen-free copper wires are respectively twisted in bundles together.

According to one or more embodiments of the present disclosure, each of the conductive terminals is a conductive terminal having gold-plated material.

To sum up, the grounding conductive cable structure is not limited to use for grounding electric devices or vehicle. For example, when the grounding cable structure is grounded to a ground of a vehicle, by the characteristics of high electrical conductivity and low impedance of the grounding cable structure, the grounding cable structure can enhance the power usage efficiency of the overall electrical load, stabilize ground potential of a battery power of the vehicle, and reduce noise of electrical current, so that performance of the engine running and fuel efficiency can be increased.

DESCRIPTION OF THE EMBODIMENTS

Reference will now be made in detail to the present embodiments of the disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts. According to the embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present disclosure without departing from the scope or spirit of the disclosure.

Reference is now made toFIG. 1andFIG. 2in whichFIG. 1is a perspective view showing a grounding conductive cable structure10according to one embodiment of the present invention.FIG. 2is a cross-sectional view taken along line2-2ofFIG. 1. As shown inFIG. 1andFIG. 2, the grounding conductive cable structure10includes a cable main body100, two conductive terminals130and a woven mesh layer140. The cable main body100includes a plurality of main-wire bundles110(e.g., two bundles thereof,FIG. 2), a plurality of subsidiary-wire bundles120(e.g., three kinds thereof,FIG. 2) and an outer layer124(e.g., isolation layer). Each of the main-wire bundles110includes copper (Cu) wires111and silver-plated wires112which are twisted in bundles together. The subsidiary-wire bundles120includes silver (Ag) wires122(e.g., 2 cores thereof,FIG. 2), at least one first oxygen-free copper wire121and at least one second oxygen-free copper wire123. The outer layer124wraps the main-wire bundles110and the subsidiary-wire bundles120together as one. The conductive terminals130are respectively coupled to two opposite ends of the cable main body100with soldering processes. The conductive terminals130are electrically connected to the main-wire bundles110and the subsidiary-wire bundles120. The woven mesh layer140covers the outer layer124, the main-wire bundles110and the subsidiary-wire bundles120.

Specifically, the total number of the copper wires111and the silver-plated′ wires112can be in a range from 5,000 to 20,000, and the number of the copper wires can be greater than the number of the silver-plated wires. Exemplarily, the total number of the copper wires111and the silver-plated wires112can be 5,000 cores, 7,500 cores, 15,000 cores, 17,500 cores or 20,000 cores. A diameter of each of the copper wires111can be in a range from 0.04 mm to 0.08 mm. Exemplarily, the diameter of each of the copper wires111is about 0.06 mm. A diameter of each of the silver-plated wires112can be in a range from 0.04 mm to 0.08 mm. Exemplarily, the diameter of each of the silver-plated wires112is about 0.06 mm. However the invention is not limited thereto.

Therefore, in the embodiment, since each of the main-wire bundles110includes a great amount of the copper wires111and the silver-plated wires112, and the diameter of each of the copper wires111and the diameter of the silver-plated wires112are quite thin, the main-wire bundles110enhances the power usage efficiency of the overall electrical load, stabilize ground potential of the battery power, so that large quantity of electrical current can be transmitted and inductance and capacitance of the electrical current can be decreased to approximately zero.

Furthermore, each of the silver wires122, for example, can be a pure silver wire having 4N (99.99%) purities of silver (Ag). The diameter of each of the silver wires122can be in a range from 1.0 mm to 2.0 mm, for example, the diameter of each of the silver wires122is about 1.0 mm. The first oxygen-free copper wire121is a PCOCC (Pure Copper by Ohno Continuous Casting Process) wire having 4N (99.99%) purities of copper (Au). The diameter of the first oxygen-free copper wire121can be in a range from 1.0 mm to 2.0 mm, for example, the diameter of each of the first oxygen-free copper wire121is about 2.0 mm. The second oxygen-free copper wire123is a PCUHD (Pure Copper Ultra High Drawability) wire having 6N or 7N (99.9999% or 99.99999%) purities of copper (Au). The diameter of the second oxygen-free copper wire123can be in a range from 0.1 mm to 0.2 mm, for example, the diameter of each of the second oxygen-free copper wire123is about 0.17 mm. The number of the second oxygen-free copper wire123can be in a range from 10 cores to 150 cores and exemplarily, the number of the second oxygen-free copper wire123can be about 52 cores. Thus, since the first oxygen-free copper wire and the second oxygen-free copper wire have characteristics of non-directional, high purity, anti-corrosion, and low electrical impedance, loss on voltage and signal of the electrical power can be reduced, so as to provide high speed and good quality of signal transmissions.

However, in other embodiment, each of the silver wires is not limited to have 4N (99.99%) purities of silver (Ag); the first oxygen-free copper wire121is not limited to have 4N (99.99%) purities of copper (Au); and the second oxygen-free copper wire123is not limited to have 6N or 7N (99.9999% or 99.99999%) purities of copper (Au).

Furthermore, each of the silver wires122is provided with a shielding layer122E completely wrapping thereof, and the shielding layer122C is provided with Teflon® material. Thus, when transmitting electrical current, interference signals of the electrical current can be effectively filtered so as to improve power purification.

As shown inFIG. 2, in the cross-section of the grounding conductive cable structure10, both of the silver wires122and the first oxygen-free copper wire121are arranged on one side of the main-wire bundles110, and the second oxygen-free copper wires123are arranged on another side of the main-wire bundles110, so that the main wire bunches110are arranged between the first oxygen-free copper wires122which are twisted in bundles together and the second oxygen-free copper wires123which are twisted in bundles together.

Also, in order to maintain the conductive performance of the grounding conductive cable structure10, each of the conductive terminals130is a conductive terminal having gold-plated material, and a tin-silver solder layer150is used to electrically connect each of the two conductive terminals130and each end of the cable main body100. The tin-silver solder layer150includes pure silver material and pure tin material in which the pure silver material is accounted for 4.7% of the overall proportion, and the pure tin material is with 4N (99.99%) purities of tin.

FIG. 3is a schematic diagram showing a vehicle electric circuit loop200according to another embodiment of the present invention. Briefly, the vehicle electric circuit loop200includes a plurality of electrical load components210, a generator220, a vehicle battery230, and a ground240(e.g., vehicle steel body or the negative-electrode distributor). The electrical load components210of the vehicle battery230for example, can be automobile illuminations, ignition systems, electronic control units, sensors and idle speed motors etc. A positive electrode231of the vehicle battery230is electrically connected to the electrical load components210. The ground240is electrically connected to a negative electrode222of the generator220, the electrical load components210and a negative electrode232of the vehicle battery230. A positive electrode221of the generator220is electrically connected to a positive electrode231of the vehicle battery230and the electrical load components210. The grounding conductive cable structure10is electrically connected to the negative electrode232of the vehicle battery230and the ground240so as to stabilize ground potential of the negative electrode232of the vehicle battery230, and reduce noises of the electrical load components210. For example, the generator220, the vehicle battery230, and all of the electrical load components210(including automobile illumination, ignition system, electronic control unit, sensors, idle speed motors, etc.) are electrically connected to a steel sheet body of a vehicle as the ground240. The grounding conductive cable structure10is used to electrically connect the negative electrode232of the vehicle battery230and an area of the steel sheet body neighboring to the vehicle battery230so as to finish the vehicle electric circuit loop200.

Therefore, with high conductivity and low impedance of the grounding conductive cable structure, the grounding cable structure can enhance the power usage efficiency of the overall vehicle electric circuit loop, stabilize ground potential of the vehicle battery, and reduce noise of electrical current, so that performance of the engine running and fuel efficiency can be increased, thereby reducing exhaust and energy consumptions in order to achieve the purpose of save energy and reduce carbon emission.

In details, since the grounding conductive cable structure provides high conductive performance, the grounding conductive cable structure stabilizes electrical potential of the vehicle electric circuit loop so that the electrical load components can be effectively operated in the vehicle electric circuit loop. For example, in the effectively operated environment of the vehicle electric circuit loop, an electronic control unit (ECU) of the vehicle as one of the electrical load components is able to enhance the efficiency performance of the vehicle for precisely sending out actuation signals to precisely control other electrical load components such as launching units, air conditioning units, and gas engine control unit, fuel injection unit and the gearbox.

Furthermore, with the connection of the grounding conductive cable structure to the vehicle, the high-voltage electronic ignition can be enhanced for smoothly mobilizing the vehicle, and stabilized in idle without shaking. Also, with the connection of the grounding conductive cable structure to the vehicle, the high-voltage electronic ignition can provide rapid acceleration and pause feels of the gearbox thereof can be obviously decreased for saving fuel of the vehicle. For example, as the grounding conductive cable structure of the invention is not installed to the vehicle yet, the gas pedal of the vehicle needs to be pressed ⅓ of the total pressed distance if the vehicle is accelerated to 120 KM/H; in contrast, as the grounding conductive cable structure of the invention is installed to the vehicle, the gas pedal of the vehicle only needs to be pressed ¼ of the total pressed. Thus, it is clear to tell that fuel consumption of the vehicle is reduced, and the original automatic power of the vehicle is back to default factory settings.

Namely, an engine and a gearbox of any vehicle are respectively made and tested in their own upstream factories, after that, the engine and the gearbox of the vehicle are assembled together in a final factory. Since the engine and the gearbox of the vehicle are cooperated with each other, the total performance might be at least lost a certain degree (e.g., 10%). Thus, as the grounding conductive cable structure10of the invention is installed to the vehicle, the lost certain degree (e.g., 10%) of the total performance can be compensated back to the vehicle.

Back toFIG. 3, after the engine of the vehicle is started, the generator220generates and provides positive voltage (current)230directly to the vehicle battery230, and the negative electrode222of the generator220and the negative electrode232of the vehicle battery230are electrically connected to the vehicle steel body (i.e., ground240). Therefore, as the grounding conductive cable structure10of the invention is replaced with the connection of the negative electrode232of the vehicle battery230and the vehicle steel body (Le ground240), the positive electrode221of the generator220is electrically connected to the positive electrode231of the vehicle battery230, and the negative electrode232of the vehicle battery230is electrically connected to the vehicle steel body (i.e., ground240) so as to define a rapid loop leading the engine, the electronic control nit (ECU), the gearbox and other electrical load components of the vehicle to have greater performance and working stabilization so as to further improve the automotive power and fuel saving.