CN102592728A - Film-coated metal cable and manufacturing method thereof - Google Patents
Film-coated metal cable and manufacturing method thereof Download PDFInfo
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- CN102592728A CN102592728A CN2012100683146A CN201210068314A CN102592728A CN 102592728 A CN102592728 A CN 102592728A CN 2012100683146 A CN2012100683146 A CN 2012100683146A CN 201210068314 A CN201210068314 A CN 201210068314A CN 102592728 A CN102592728 A CN 102592728A
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Abstract
The invention belongs to the field of wires and cables, also belongs to the field of processing of electronic components, and particularly relates to a film-coated metal cable and a manufacturing method thereof. The film-coated metal cable comprises a lead and an insulating layer wrapped outside the lead; the lead comprises a metal core wire and a protective film wrapped outside the metal core wire; and the protective film is filled in a gap between the metal core wire and the insulating layer. The manufacturing method comprises the following steps: (a) performing post-processing to the metal core wire through a power wire feeding device; (b) cleaning the surface of the metal core wire; (c) putting the metal core wire in a container stored with chemical solvents, and keeping the temperature of the container constant; (d) adopting a baking device for solidification treatment; (e) allowing the leads on the traction wheel to move in one direction through a power traction device; and (f) putting the leads in a plastic shaft through a power take-up device. The metal core wire is protected from being dispersed under an external force; and the surface area of the original metal core wire is enlarged, the cross section of the lead tends to a proper circle, and the high frequency characteristic is further enhanced.
Description
Technical field
The present invention relates to electric wire field, electronics spare part manufacture field and electrical type association area, relate in particular to a kind of precoated metal cable and manufacturing approach thereof.
Background technology
In the electric wire application; The mounting means of electric wire mainly contains modes such as welding, riveting terminal and cold welding crimping, and which kind of mode no matter all need be with the insulation displacement of electric wire; The metal core wire of inside is exposed out; Carry out the installation of back segment then and (in the wire harness processing technology,, will cut out line and peeling as the front end processing procedure according to processing sequence; To glue that soldering connects, spigot, riveting terminal and moulded, be called back-end process).Because most electric wires adopt single core or the stranded metal core wire of multicore, so when peeling off insulating barrier,, be unfavorable for the installation of back segment like this because the effect of external force can make original complete stranded metal core wire the situation of scattering occur.
In addition, along with the update of consumption electronic product, very high requirement has been proposed the electric wire of bearing transmitting effect.In transmission frequency that improves constantly and bandwidth, require to keep stricter high frequency characteristics, wherein high frequency characteristics and following relating to parameters, for example: poor, differential pair delay diference of delay and cross-talk etc. in decay, delay, the differential pair.And such high frequency characteristics all with electric wire in the surface area of metal core wire direct relation is arranged.Because exist the skin effect situation (promptly to refer to alternating current (Alternating electric Current; During AC) through lead; Because induction effect causes that CURRENT DISTRIBUTION is inhomogeneous on the conductor cross-section; The nearly conductive line surfaces current density that heals is big more), so skin effect can make the effective resistance of metal core wire increase.When frequency was high more, skin effect was remarkable more, and loss power also increases thereupon.When the very high electric current of frequency during, can think that electric current only flows through in very thin one deck on conductive line surfaces through lead.In order to guarantee the characteristic requirements under high frequency condition, best solution is to increase metal wire surface area (referring generally to cross section), and promptly surface area is big more, and high frequency characteristics is good more.Like this, make and have to use more by some electric wires the metal core wire of high surface area reaches high-frequency effect, so that can't make the product miniaturization.
Summary of the invention
The objective of the invention is to solve the above problems, a kind of precoated metal cable and manufacturing approach thereof are provided.It has been avoided when electric wire is peeled off insulating barrier, because the external force effect, the situation that forces the metal core wire of inner multicore to occur scattering has realized electric wire simultaneously under the prerequisite that improves high frequency characteristics, and product can be tending towards miniaturization.In addition, the manufacturing approach of said precoated metal cable not only energy-saving effect is obvious, and has the strong characteristics of the feature of environmental protection.
For realizing above-mentioned purpose, the present invention adopts following technical proposals:
A kind of precoated metal cable comprises the insulating barrier that lead is outer with being coated on lead, and said lead comprises the diaphragm that metal core wire is outside with being coated on metal core wire; Said diaphragm is filled in the gap between said metal core wire and the said insulating barrier.
Further, said metal core wire is more than two, also is filled with diaphragm in the gap between all said metal core wire.
Further, the material of said metal core wire be in copper, gun-metal, copper-iron alloy and the aluminium any one.
Further, the material of said diaphragm be in tin, gold and the silver any one.
A kind of manufacturing approach that adopts said precoated metal cable is characterized in that, comprises the steps:
(a) tractive effort of metal core wire through the power thread supply device that is wrapped in the draw drum drives, and is transferred in the ultrasonic cleaning equipment;
(b) through ultrasonic cleaning equipment the metal core wire surface before applying is done and clean processing, reject impurity;
(c) metal core wire is placed the container that fills chemical solvent, and keep vessel temp constant;
The metal core wire that (d) will apply chemical solvent is carried out heat baking cured, makes the surperficial free from admixture and the steam that apply the diaphragm that forms behind the chemical solvent residual;
(e) draw the drive force of getting device through power and draw and get wheel and rotate, make and draw the lead of getting on the wheel and at the uniform velocity advance towards a direction.
Further, in step (c), mould and tool are set in said container, are used to control shape and the thickness that applies the diaphragm that forms behind the chemical solvent.
Further, in step (c), the temperature range of container is 30 ℃ to 200 ℃.
Further, in step (c), the temperature range of container further is 80 ℃ to 100 ℃.
Further, in step (e), draw the speed switch of getting device, be used to control the thickness and the quality of diaphragm through regulating said power.
Further, in step (e) afterwards, further comprise step:, the lead that applied chemical solvent and formed is inserted in the plastic cement axle through the power take-up.
The invention has the advantages that:
(1) precoated metal cable according to the invention still can keep the conduction of metal core wire itself under the protection metal core wire does not receive prerequisite that external force scatters;
(2) diaphragm that forms through coated with tin ion chemistry solvent; Increased the surface area (cross section) of original metal core wire; Make conductive wire cross-section more be tending towards proper circle, improved high frequency characteristics, solve problems such as postponing poor, differential pair delay diference and cross-talk in decay, delay, the differential pair;
(3) compared with prior art, in the manufacturing approach process of precoated metal cable according to the invention, reduced the temperature range of heating, reduced the required electric power of heating, energy-saving effect is obvious; The employed tin of prior art is harmful in when volatilization to human body, and in the manufacturing approach of precoated metal cable according to the invention, said tin ion solvent heating back does not have volatilization basically, is water vapour even volatilize yet, and the present invention has the strong characteristics of the feature of environmental protection.
Description of drawings
Fig. 1 is the structural representation of precoated metal cable according to the invention (single core);
Fig. 2 is the structural representation of precoated metal cable according to the invention (multicore);
Fig. 3 is the sketch map of the manufacturing approach of precoated metal cable according to the invention;
Fig. 4 is the step sketch map of practical implementation step of the manufacturing approach of precoated metal cable according to the invention;
Wherein, the mark among the figure is respectively:
1, lead; 11, metal core wire; 12, diaphragm; 2, insulating barrier;
M10, power thread supply device; M20, ultrasonic cleaning equipment; M30, container;
M40, heat baking device; M50, power draw gets device; M60, power take-up.
Embodiment
Elaborate below in conjunction with the embodiment of accompanying drawing to precoated metal cable of the present invention and manufacturing approach thereof.
Referring to Fig. 1 and Fig. 2, be respectively the structural representation of precoated metal cable according to the invention (single core) and the structural representation of precoated metal cable according to the invention (multicore).A kind of precoated metal cable comprises the insulating barrier 2 that lead 1 is outer with being coated on lead, and said lead 1 comprises metal core wire 11 and the diaphragm 12 that is coated on metal core wire 11 outsides.Diaphragm 12 is filled in the gap between metal core wire 11 and the insulating barrier 2.Wherein, the material of said metal core wire 11 be in copper, gun-metal, copper-iron alloy and the aluminium any one.If metal core wire 11 is single core, see shown in Figure 1.If metal core wire 11 is a multicore, see shown in Figure 2.If metal core wire 11 is (multicore) more than two, also be filled with diaphragm 12 in the gap between all said metal core wire 11.The material of diaphragm 12 be in tin, gold and the silver any one.The material of diaphragm 12 is a tin described in the specific embodiment of the invention (embodiment one and embodiment two).In other embodiment of the present invention, the material of said diaphragm 12 is except can also selecting other materials for use for the tin, like gold or silver-colored.The preferred materials of diaphragm 12 is a tin, because the cost of tin is low, and using value is arranged more.The thickness range of diaphragm 12 is 0.001mm to 0.1mm, and preferred values is 0.01mm.Like this, under protection metal core wire 11 does not receive prerequisite that external force scatters, still can keep the conduction of metal core wire 11 itself.Be that described diaphragm 12 does not influence metal core wire 11 electrical characteristics own.The lead 1 of said precoated metal cable makes the cross section of lead 1 be tending towards proper circle through the coating chemical solvent operation in the manufacturing approach and other operations (for example, mould and tool, heat baking curing are set and at the uniform velocity draw and get etc.).
Two embodiment (embodiment one and embodiment two) are below described; Be used for explaining that precoated metal cable according to the invention (for example is used to solve the existing problem of prior art; After peeling off insulating barrier, because the effect of external force can make original complete stranded metal core wire the situation of scattering occur; In order to keep better high frequency characteristics but can't make the product miniaturization).
Embodiment one; Present main flow notebook computer or LED (Light Emitting Diode; Light-emitting diode) LCD TV is an example; Its inside all can be built-in a kind of image coffret technology LVDS (Low Voltage Differential Signaling, the transmission of low-voltage differential signal), and the wire harness completion that the task between the link interface is made up of superfine lead.(here, the requirement that wire harness refers to according to function bundles some cables, and cable is made up of lead).With trend in the market, above-mentioned two kinds of electronic products need more be tending towards lightening, so, the design of wire harness itself has been proposed the more requirement of miniaturization.In order to reach this type of designing requirement, wire harness itself must adopt thinner lead to assemble, but superfine lead is adding man-hour, and difficulty is a lot, and loose with the metal core wire in the lead is the processing difficulties point of maximum, because wire harness itself needs small designization.If it is loose to work as metal core wire, and the welding at the terminal place, serious problems such as short circuit burning machine then can appear.This product has overcome this type of defective just, and the diaphragm that forms at the metal core wire outer surface can prevent the problem that metal core wire is loose effectively, plays the effect of constraint.Like this, adopt precoated metal cable of the present invention can improve the quality of wire harness.
Embodiment two; With the consumer electronics high frequency image transmission of main flow in the market with line HDMI (High-Definition Multimedia Interface; HDMI) or DisplayPort (display interface) be example, these two kinds of cables use under high frequency environment all that (said high frequency or high frequency characteristics are meant in the signal transmission frequencies that surpasses more than the 100MHZ; Specifically comprise factors such as postponing poor, differential pair delay diference and cross-talk in the delay, decay, differential pair); After signal surpassed the 3.5GHz frequency, the transmission of signal was to accomplish on the surface of metal core wire, was not in the inner completion of metal core wire.That is to say that the area on metal core wire surface is big more, effectively the distance of transmission is just long more, and the integrality of signal is also strong more.HDMI cable with No. 36, the AWG on the market is an example, and its transmission range can only be 1.5M, can't accomplish the transmission of longer distance, on using, significant limitation is arranged.And be head it off, all be to adopt electronic amplifier that signal is amplified in the market, its transmission range can extend to 1.7M, and cost is very high.But the said precoated metal cable of the application of the invention can overcome this type of problem.Because after the surface of original metal core wire forms the diaphragm of layer of metal, make the surface area increase of metal core wire be about 42%.Like this, under No. 36, identical AWG, but precoated metal cable transmission range of the present invention is farther, and transmission range can reach more than the 2.0M.The advantage of precoated metal cable of the present invention is that not only diaphragm is a metal material, and its cost is far below the transmission line that uses electronic amplifier.For example in the specific embodiment of the invention; Using cheaply, the tin ion chemical solvent applies in the existing electronic product; Promptly form the diaphragm of metal at the outer surface of original metal core wire; So not only further improved the high frequency characteristics of electronic product itself, and, adopted the cost of precoated metal cable according to the invention obviously to possess great advantage with respect to the loss before improving.In addition, precoated metal cable of the present invention has better outward appearance, the advantage that is easy to process.
Next the step shown in Fig. 3 (sketch map of the manufacturing approach of precoated metal cable according to the invention) and Fig. 4 (the step sketch map of the practical implementation step of the manufacturing approach of precoated metal cable according to the invention) is elaborated.
Referring to Fig. 3 and Fig. 4, a kind of manufacturing approach of said precoated metal cable comprises the steps:
S401: the tractive effort of metal core wire through the power thread supply device that is wrapped in the draw drum drives, and is transferred in the ultrasonic cleaning equipment.
In the specific embodiment of the invention; With more than 20 groups; The metal core wire that is wrapped in the draw drum is carried out rear end manufacturing processing through power thread supply device M10, and is that ensuing operation (cleaning, coating chemical solvent, heat like metal core wire are dried by the fire curing etc.) is ready.In giving line process; (servo controller is a kind of device that is used to control motor, and here, said servo controller is to be arranged at power to draw and get among the device M50 through servo controller; Power is drawn get device M50 initiatively to go between the passive line of giving of power thread supply device M10.) control power thread supply device M10 and power draws and gets device M50, make power thread supply device M10 to draw the wire speed of getting device M50 to linear velocity and power consistent, making the tractive effort that is carried on the metal core wire is constant force.Like this; Not only avoid lax, the disconnected core or the stretcher strain of metal core wire to greatest extent; For high-quality cable manufacturing is laid a good foundation, also can improve ultrasonic cleaning equipment M20 simultaneously, fill the container M30 of chemical solvent and the service efficiency that heat is dried by the fire device M40.Employed metal core wire is 50 AWG.(AWG (American Wire Gauge, AWG) is a kind of standard of distinguishing diameter of wire; Brown & Sharpe wire gauge is otherwise known as; Numeral before the AWG is big more, and then core line diameter is more little, and AWG can consult the brown and sharpe wire gauge standard with the conversion of millimeter).The U.S. No. 50 wire gauges (50 AWG) is meant that sectional area is 0.000486～0.000497 square millimeter metal core wire.
S402: through ultrasonic cleaning equipment the metal core wire surface before applying is done to clean processing, reject impurity.
In step S402; Through ultrasonic cleaning equipment M20 the metal core wire surface is done and to clean processing; Reject impurity; Assurance does not exert an influence to the chemical solvent that will apply, and makes the diaphragm that forms on the metal core wire surface that better quality arranged, and has guaranteed the electrical characteristic of original metal core wire simultaneously yet.
S403: metal core wire is placed the container that fills chemical solvent, and keep vessel temp constant.
In step S403, mould and tool are set in container M30, be used to control shape and the thickness that applies the diaphragm that forms behind the chemical solvent.Manufacturer can control the thickness of diaphragm according to client's demand.In the specific embodiment of the invention, the thickness range of diaphragm is 0.001mm to 0.1mm, and preferred values is 0.01mm.Through the use of mould and tool,, trend towards proper circle at the formed diaphragm of the outer surface of metal core wire when metal core wire and chemical solvent (for example, the tin ion chemical solvent) generation chemical reaction.Under the protection metal core wire does not receive prerequisite that external force scatters, still can keep the conduction of metal core wire itself like this.
In step S403, heating container M30 makes the temperature range of container M30 remain on 30 ℃ to 200 ℃, and further temperature range is controlled at 80 ℃ to 100 ℃.And present prior art, the temperature range of general hot tinning is 260 ℃ to 380 ℃, looks the composition of tin and decides.Therefore, adopt manufacturing approach of the present invention, not only reduced the temperature range of heating, and reduced the required electric power of heating, energy-saving effect is obvious.
S404: the metal core wire that will apply chemical solvent is carried out heat baking cured, makes the surperficial free from admixture and the steam that apply the diaphragm that forms behind the chemical solvent residual.
Wherein, described chemical solvent is the tin ion solvent, and the tin ion solvent is not for there being the nontoxic transparent chemicals of corrosion.Manufacturing approach of the present invention has the strong characteristics of the feature of environmental protection, because the employed tin of prior art can be harmful when volatilization, and tin ion solvent of the present invention heating back does not have volatilization basically, even volatilization also is a water vapour.In this step, also guaranteed the quality of the formed diaphragm of chemical reaction through the cured of heat baking device M40.
S405: draw the drive force of getting device through power and draw and get wheel and rotate, make and draw the lead of getting on the wheel and at the uniform velocity advance towards a direction.
Wherein, Power draws to be got device M50 and is meant that the servo controller that adopts adjustable speed and motor are as actuating force; Driving is drawn and is got wheel and rotate, and makes to draw can get into ultrasonic cleaning equipment M20 evenly before the lead of getting on the wheel, fill among the container M30 and heat baking device M40 of chemical solvent.Owing to adopt servo controller, make lead in the process of advancing, remain a constant speed with steady, guaranteed that like this lead can be by uniform treatment in ultrasonic cleaning equipment M20, the container M30 that fills chemical solvent and heat baking device M40.Draw the speed switch of getting device M50 through regulating power, with the thickness and the quality of control diaphragm.In the specific embodiment of the invention; Power draws the CD-ROM drive motor of getting among the device M50 changes 2000 commentaries on classics of scooter per minute; Add up to 200 meters of the about per minutes of linear velocity, like this, make lead (said lead comprises metal core wire and the diaphragm) cross section of processing more be tending towards proper circle through said method.
S406:, the lead that applied chemical solvent and formed is inserted in the plastic cement axle through the power take-up.
Through power take-up M60, insert in the plastic cement axle lead that applied chemical solvent and formed or in the packing of other client's appointments.Adopt plastic cement as packing in the specific embodiment of the invention, said plastic cement plays good insulation performance property as the insulating barrier of cable.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. a precoated metal cable comprises the insulating barrier that lead is outer with being coated on lead, it is characterized in that, said lead comprises the diaphragm that metal core wire is outside with being coated on metal core wire; Said diaphragm is filled in the gap between said metal core wire and the said insulating barrier.
2. precoated metal cable as claimed in claim 1 is characterized in that, said metal core wire is more than two, also is filled with diaphragm in the gap between all said metal core wire.
3. precoated metal cable as claimed in claim 1 is characterized in that, the material of said metal core wire be in copper, gun-metal, copper-iron alloy and the aluminium any one.
4. precoated metal cable as claimed in claim 1 is characterized in that, the material of said diaphragm be in tin, gold and the silver any one.
5. the manufacturing approach of the said precoated metal cable of claim 1 is characterized in that, comprises the steps:
(a) tractive effort of metal core wire through the power thread supply device that is wrapped in the draw drum drives, and is transferred in the ultrasonic cleaning equipment;
(b) through ultrasonic cleaning equipment the metal core wire surface before applying is done and clean processing, reject impurity;
(c) metal core wire is placed the container that fills chemical solvent, and keep vessel temp constant;
The metal core wire that (d) will apply chemical solvent is carried out heat baking cured, makes the surperficial free from admixture and the steam that apply the diaphragm that forms behind the chemical solvent residual;
(e) draw the drive force of getting device through power and draw and get wheel and rotate, make and draw the lead of getting on the wheel and at the uniform velocity advance towards a direction.
6. like the manufacturing approach of the said precoated metal cable of claim 5, it is characterized in that, in step (c), mould and tool are set in said container, be used to control shape and the thickness that applies the diaphragm that forms behind the chemical solvent.
7. like the manufacturing approach of the said precoated metal cable of claim 5, it is characterized in that in step (c), the temperature range of container is 30 ℃ to 200 ℃.
8. like the manufacturing approach of the said precoated metal cable of claim 7, it is characterized in that in step (c), the temperature range of container further is 80 ℃ to 100 ℃.
9. like the manufacturing approach of the said precoated metal cable of claim 5, it is characterized in that, in step (e), draw the speed switch of getting device, be used to control the thickness and the quality of diaphragm through regulating said power.
10. like the manufacturing approach of the said precoated metal cable of claim 5, it is characterized in that, in step (e) afterwards, further comprise step:
Through the power take-up, the lead that applied chemical solvent and formed is inserted in the plastic cement axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210068314 CN102592728B (en) | 2012-03-15 | 2012-03-15 | Film-coated metal cable and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210068314 CN102592728B (en) | 2012-03-15 | 2012-03-15 | Film-coated metal cable and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN102592728A true CN102592728A (en) | 2012-07-18 |
| CN102592728B CN102592728B (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210068314 Expired - Fee Related CN102592728B (en) | 2012-03-15 | 2012-03-15 | Film-coated metal cable and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103549976A (en) * | 2013-11-11 | 2014-02-05 | 深圳市开立科技有限公司 | Ultrasonic probe, medical endoscope and processing method for ultrasonic probe and medical endoscope |
| CN106057360A (en) * | 2016-07-27 | 2016-10-26 | 芜湖顺成电子有限公司 | Method for preparing low-smoke halogen-free flame-retardant electric wires |
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| US20020117325A1 (en) * | 2001-02-23 | 2002-08-29 | Mennone Michael P. | Flame resistant cable structure |
| CN200962351Y (en) * | 2006-04-01 | 2007-10-17 | 张良 | Signal cable |
| CN201167010Y (en) * | 2008-03-11 | 2008-12-17 | 卢沛女 | Novel enamel-insulated-aluminium coil |
| CN102280179A (en) * | 2011-05-25 | 2011-12-14 | 无锡市明珠电缆有限公司 | Flame-retardant cabtyre cable for mobile device in coal mine and preparation method thereof |
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2012
- 2012-03-15 CN CN 201210068314 patent/CN102592728B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020117325A1 (en) * | 2001-02-23 | 2002-08-29 | Mennone Michael P. | Flame resistant cable structure |
| CN200962351Y (en) * | 2006-04-01 | 2007-10-17 | 张良 | Signal cable |
| CN201167010Y (en) * | 2008-03-11 | 2008-12-17 | 卢沛女 | Novel enamel-insulated-aluminium coil |
| CN102280179A (en) * | 2011-05-25 | 2011-12-14 | 无锡市明珠电缆有限公司 | Flame-retardant cabtyre cable for mobile device in coal mine and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103549976A (en) * | 2013-11-11 | 2014-02-05 | 深圳市开立科技有限公司 | Ultrasonic probe, medical endoscope and processing method for ultrasonic probe and medical endoscope |
| CN106057360A (en) * | 2016-07-27 | 2016-10-26 | 芜湖顺成电子有限公司 | Method for preparing low-smoke halogen-free flame-retardant electric wires |
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| CN102592728B (en) | 2013-09-04 |
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