TW200537530A - Multilayer insulated wire - Google Patents

Abstract

Disclosed herein is a highly heat-resistant and insulting multilayer insulated wire which is small in thickness so as to be suitable for use in internal wirings of heat-resistant and small-sized electronic products, thereby reducing the heat generation per unit area.

Description

200537530

[Technical field to which the invention belongs] The present invention relates to a multilayer insulated wire having a small thickness so that it is suitable for internal wiring of thermal and small electronic products, thereby reducing the heat generated per unit of product. At the same time, it is A conductor is extruded and coated with a copolymer resin having excellent heat resistance, abrasion resistance, and electrical insulation properties. [Previous Technology] In recent years, 'microelectronic products and high-frequency electrical / electronic equipment have become smaller or lighter, and household appliances such as computers, mobile phones, monitors, listing machines, and Cameras, etc., have become lightweight and versatile. ° With the recent development of small electronic products, insulated wires used for internal wiring of electronic products should be small in thickness and reduce the heat generated per unit area. That is, such insulated wires must have excellent heat resistance and insulation properties. SUMMARY OF THE INVENTION Accordingly, the present invention is designed to solve the foregoing problems, and an object thereof is to provide a multilayer insulated wire having excellent heat resistance and insulation properties required for internal wiring of small plastic electronic products. This multilayer insulated wire has a small thickness and can reduce the heat generated per unit area. To achieve the foregoing object, a multilayer insulated wire provided by the present invention includes: a conductor; a first insulating sheath covering the conductor; a second insulating sheath covering the first insulating sheath; and a layer of sheath A surface protective layer covered with a second insulating protective layer, wherein the conductor system is made of copper or an alloy, the first and

200537530 V. Description of the invention (2) The second insulation protective layer is made of polyethylene terephthalate / polybutylene terephthalate copolymer resin, and the surface protective layer is made of a polymer Amines, polyethylenetetrafluoroethylene, and polyamido-imines are the resins of choice. [Brief Description of the Drawings] The foregoing and other objects, features, and other advantages of the present invention will be described in detail with reference to the embodiments and the drawings, in which: FIG. 1 is a perspective view showing the multilayer insulated wire of the present invention And FIG. 2 is a cross-sectional view of the multilayer insulated wire shown in FIG. 1. [Embodiment] The present invention will be described in detail below with reference to the drawings. Figures 1 and 2 show the overall structure of the multilayer insulated wire of the present invention. Reference numeral 50 indicates a multilayer insulated wire of the present invention. The first layer of insulated electric wire 50 is composed of a conductor 10, a first insulating sheath 20, two insulating sheaths 30, and a surface sheath 40. The conductor 10 is formed of copper or some alloy. The first and second insulation layers 20 and 30 are sequentially covered with polyethylene terephthalate ‘formed for a long time. The dibutyl acetate copolymer resin is used for extrusion coating of the conductor 10, and 1% to 40% of polybutylene terephthalate is intended to copolymerize ethylene diformate (aU〇ying) based on weight. In order to prepare a copolymerized tree stupid = weight μ '1% to 40% of polybutylene terephthalate and polyethylene terephthalate were blended to prepare a copolymer resin and a polyethylene terephthalate.

200537530

Based on weight, the copolymer resin can be modified with 0.01% ~ 5% extrusion molding. 5. Description of the invention (3) In order to improve heat resistance and processability, it also contains heat resistance of 0.01% to 2% Modifier 0 The surface protective layer 40 is formed by cold-thinning the second protective layer 30 with a resin selected from polyamine, polyethylene tetrafluoroethylene, and imine. π j fish is coated with amine to form polyamine. It is selected from nylon 6, nylon 6, 6 and nylon 6, 1 υ. Resin is used based on weight. It can contain 〇. 〇1% ~ 20% heat resistance. Modifier, agent 'with 0. 001% ~ 5% extrusion modifier. As the heat-resistant modifier, a mixture of an organic filler and an I filler can be used. Examples of organic fillers include / (3 called, \ ^ ,,

(3K > sC \, bucket, / ηu--10 · ', and examples of the inorganic filler include silica, oxan, alumina, and molybdenum oxide. As the inorganic filler, an aspect ratio milk is preferably used. ~ 1 · 2 spherical particles. · The purpose of adding an extrusion modifier is to make the resin fluid and lubricating, and it is usually selected from olefin-based, aromatic polyenamine-based, and US-theta. The following examples explain the multilayer insulated wire of the present invention in detail. + ^ The multilayer insulated wires manufactured in the following examples are evaluated for their insulation breakdown properties, thermal conductivity and flame retardancy tests. .

Page 6 200537530 Table 1 V. Description of the invention (4) Composition example Level Insulating compound 1 2 3 4 5 1 2 Insulating protective layer polymer resin polyethylene terephthalate / polybutylene terephthalate copolymer 0 0 〇0 Polyethylene terephthalate----0 0 0 33 First insulation sheath, 1 thickness (μηι) 33 33 33 33 33 33 Second insulation sheath polymer resin polyethylene terephthalate Diester / polybutylene terephthalate copolymer 0 0 0 0 Polyethylene terephthalate purpose--0-0 0 33 Poor insulation insulation thickness (μιη) 33 33 33 33 33 33 Surface Sheath polymer resin nylon 6,6 0--0 0 — 0 〇Polyamine imine 0-Ethylene tetrafluoroethylene--0-Reciprocity (μηη) 33 33 33 33 33 33 33 V -2 X Flame retardant V-2 V-2 V-2 V-2 V-2! Welding loyalty 0 0 X 0 0 0 itl (KV) 15.2 15.7 14.5 14.7 13.5 14.9 14.7 (rated 130QC) i i Yong Guo Yong scroll pass pass pass not rated not over i5〇 ° c) pass pass pass pass through chanting had not had not listed in table 1 to each of the multilayer insulated electric wire In the split extrusion coating, the temperature of the cylinder (cy 丨 inder) used is adjusted to 2000 ~ 300

200537530 V. Description of the invention (5) Rotating speed outline of the screw (screw) 敕 ^ ^ $ ιΜπη ολλ 整 adjust the hand and shoulder to 2 ~ 30rpm, and adjust the linear rate to 100 ~ 30rpm, so as not to Insulation breakdown voltage is based on twisted pair Sakizaki private θ θ1 wide: The measurement method of the breakdown voltage of the edge of the towel is to test. Specifically, absolutely = 'and remove the tensile strength f at about 12 cm under the appropriate tensile strength ;: drop: ί = twist number to twist, then i Α μ π k + cut off the fold and 邛Then, an approximate 60Hz tester is applied to estimate 1 4kV '20 / voltage. When the insulation breakdown voltage of the test piece is lower than the test, that is, the highest voltage used by the transformer, it is judged that the test has failed. The flame retardancy is determined by a flame retardancy tester with ul 94 points v—ο, ν- 卜 [2 and so on. When the test piece belongs, it is judged that it failed the test. The solderability is evaluated according to the standard method of B c 3006 (1 6). It is evaluated by 582, 226, and the solderability is evaluated by obtaining approximately 22 U pieces from the same spool at the specified temperature. The test piece was immersed in 50Sn as defined in the standard method of the 6704-meter door. The test piece was taken out after '1.' After removing the test piece, wipe it with a cloth, and then observe the immersion part from the end about ι〇f f U Whether welding is uniform. Examples 1 to 5 and Comparative Examples 丨 and 2 Each multilayer insulated wire was manufactured according to the following procedure. ㈣Γ ί Copolymer of diethylene terephthalate / polybutylene diacetate copolymer tree A conductor 10 made of copper or 5 gold is extruded and coated to form the first, ′, and yttrium. Spread layer 2 0. In addition, it is extruded and coated with the same material as the first insulating protective layer ’to form the H edge protective layer 3QU ^

200537530 V. Description of the invention (6) Thereafter, the #IL and B # 1 women were selected to form the surface, and it has now been confirmed to be such a standard. On the other hand, the multi-layered insulation produced by extruding diethyl formate from the above-mentioned manufacturing method is coated with a polyester copolymer resin on the first and second insulating sheaths of polyethylene tetrafluoroethylene to form a table. The thickness is small, so it is suitable and applicable to the scope of implementing the present invention, such as small computers and the like. In another aspect, the invention belongs to the present invention, which is extrusion-coated from polyamine, polyamido-imine, and polyethylene tetra resin to the second insulating protective layer 30 and the protective layer 40. The manufactured multilayer insulated wires comply with Class B heat resistance. Those of Comparative Examples 1 and 2 were individually coated with polyterephthalate for the first and second insulation sheaths, but the wires did not reach Class B heat resistance. standard. ^: It is known that the multilayer insulated wire provided by the present invention is extruded and coated with diethyl diacetate / polydibutyl dibenzate, thereby forming a second kind of polycondensate on a conductor. Amine, polyimide_imine and selected resin are used to extrude the second insulating protective layer. Because the multi-layer insulated wire of the present invention is used to withstand 敎 and small thunder, Γκ ot,… Han has a lot to produce. The internal wiring of the port is only for the purpose of explaining the present invention, and is not intended to limit the scope of the various modifications or patents covered by the spirit of the present invention.

Page 9 200537530 Brief description of the drawings [Simplified description of the drawings] Fig. 1 is a perspective view showing the overall structure of the multilayer insulated wire of the present invention. FIG. 2 is a cross-sectional view of the multilayer insulated wire shown in FIG. 1. FIG. [Illustration of reference numerals of drawing elements] Conductor 10 First insulation sheath 2 0 Second insulation sheath 3 0 Surface sheath 40 Multi-layer insulated wire 5 0

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Claims (1)

200537530 VI. Scope of patent application1. A multilayer insulated wire, comprising: a conductor (10); a first insulating sheath (20) covering the conductor (1 0); a layer covering the first insulating sheath ( 20) a second insulating sheath (30); and a surface sheath (40) covering the second insulating sheath (30), wherein the conductor (10) is made of copper or an alloy, and The first and second insulating sheaths (20) and (30) are formed of polyethylene terephthalate / polybutylene terephthalate copolymer resin, and the surface sheath is a kind of polymer Resins selected from amines, polyamines-imines and polytetrafluoroethylene. 2 · The multi-layer insulated wire as described in item 1 of the scope of patent application, in which a pair of ethylene terephthalate / polybutylene terephthalate copolymer resin is based on heavy ink, so that 1% to 40% of Polybutylene terephthalate is prepared by blending polyethylene terephthalate. ^ 3 The multilayer insulated wire as described in item 1 of the scope of the patent application, in which the polyethylene terephthalate / polybutylene terephthalate copolymer resin is based on the star, so that 1% to 4 0 % Polybutylene terephthalate is prepared by copolymerizing polyethylene terephthalate with polyethylene terephthalate. 4. The multilayer insulated wire as described in item 1 of the scope of the patent application, wherein the weight of the quasi-'polyethylene terephthalate / polybutylene terephthalate copolymer resin further contains 0.001% ~ 20% of heat-resistant modifier and 〇 丨 丨 ~ 5% of extrusion modifier. ^ 5 The multilayer insulated wire as described in item 1 of the scope of the patent application, in which the amine is a kind of tree selected from nylon 6, nylon 6,6 and nylon 6,10, and the weight is subject to change. Contains 0.01% ~ 20% heat-resistant modifier and Page 11 200537530 VI. Application for patent range 0.01% ~ 5% extrusion modifier. 6. The multilayer insulated wire according to item 4 or 5 of the scope of patent application, wherein the heat-resistant modifier is composed of a mixture of an organic filler and an inorganic filler, and the inorganic filler is an aspect ratio 0〜1.2 The resin composed of spherical particles. Page 12