JP2002279845A - Heat resistant resin-coated glass fiber sleeve and sleeve- covered flexible electric wire covered with the sleeve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat resistant resin-coated glass fiber sleeve that is superior in break-up resistance and a flexible electric wire that is covered with the above sleeve and prevented from wear and damage. SOLUTION: This is a heat resistant resin-coated glass fiber sleeve 1 in which heat resistant resin is coated on a sleeve woven with glass fiber. This is a sleeve-covered flexible wire 6 in which the above heat resistant resin-coated glass fiber sleeve 1 is covered on the portion of the flexible conductor 3 of the flexible cable 5 of which the flexible conductor 3 is installed with a terminal 4. As the glass fiber sleeve 1 is coated with heat resistant resin, it is superior in break-up resistance. Hence, when it is used for covering the flexible cable 5 that is wired in the place such as automobile muffler installation place which is easy to receive vibration, leakage of electricity by exposure of the internal flexible conductor or corrosion due to wear and damage is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-resistant resin coating suitable for insulating and / or protecting components such as flexible electric wires and piping used in places where vibration is likely to occur, such as a place where a muffler is placed in an automobile. And a flexible electric wire covered with the sleeve.

[0002]

2. Description of the Related Art A flexible electric wire used in a place where vibration is likely to occur, such as a place where a muffler is arranged in an automobile, includes a flexible conductor 3 made of a braided conductive metal wire 2 as shown in FIG. A flexible electric wire 5 to which a terminal 4 is attached is used.
In addition, a flexible electric wire 9 in which terminals 4 are attached to both ends of a flexible conductor 8 in which a number of conductive thin plates 7 are laminated as shown in FIG. 4 is also used. In the flexible electric wires 5 and 9, thermal distortion and vibration are absorbed by bending of the flexible conductors 3 and 8, so that the connection state of the terminal 4 and the like can be kept good. On the other hand, when many parts (flexible electric wires, piping, etc.) are placed in a narrow space such as the place where the car muffler is placed or in the engine room, the parts are made of glass fiber woven sleeves to avoid interference between parts. May be coated and insulated or protected.

[0003]

However, since the place where the muffler is arranged in the automobile is likely to vibrate, the glass fiber sleeve is separated and the insulating or protecting effect cannot be obtained, and the glass fiber sleeve is covered. Exposed Sn-plated copper fine wires (conductive metal fine wires)
There were problems such as electric leakage, wear due to friction with other parts, etc., the Sn plating layer was partially peeled, and copper was corroded at the peeled portion. In addition, there is a problem that if there is a heating element nearby, the radiant heat is directly received and the wear becomes severe. From such a fact, the present inventors have studied the prevention of the disintegration of the glass fiber sleeve, and found that by coating the glass fiber sleeve with a heat-resistant resin, the disintegration can be suppressed. Again, the present invention has been completed. SUMMARY OF THE INVENTION It is an object of the present invention to provide a glass fiber sleeve which is coated with a heat-resistant resin to improve the scatter resistance and a flexible electric wire which covers the sleeve to prevent electric leakage and corrosion due to wear.

[0004]

According to the first aspect of the present invention,
A heat-resistant resin-coated glass fiber sleeve, wherein a heat-resistant resin is coated on a glass fiber woven sleeve.

According to a second aspect of the present invention, the flexible conductor portion of the flexible electric wire in which the terminal is attached to the flexible conductor is the first aspect.
A sleeve-coated flexible electric wire, wherein the heat-resistant resin-coated glass fiber sleeve is coated.

According to a third aspect of the present invention, there is provided the sleeve-coated flexible electric wire according to the second aspect, wherein the flexible conductor comprises a braided body of a heat-resistant conductive thin metal wire.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is a glass fiber sleeve 1 in which a heat-resistant resin is coated on a glass fiber knitted sleeve (hereinafter referred to as a glass fiber sleeve) as shown in FIG. In addition, since the heat-resistant resin bonds the glass fibers to each other, the sleeve 1 is hard to be separated. Further, since the coating resin has heat resistance, it can be used stably even in a place where the temperature becomes high such as a muffler part of an automobile.

The method of coating the glass fiber sleeve with the heat-resistant resin includes a method of spraying and applying the heat-resistant resin to the glass fiber sleeve, a method of applying with a brush, a method of dipping the glass fiber sleeve in the heat-resistant resin, and the like. Any method can be applied. As the heat-resistant resin, any resin having excellent heat resistance, such as an epoxy resin, a fluororesin (Teflon (registered trademark)), a polyimide resin, and a polyamideimide resin can be used.

The invention described in claim 2 is based on FIG.
As shown in (b), there is a sleeve-covered flexible electric wire 6 in which the flexible conductor 3 of the flexible electric wire 3 having the terminals 4 attached to both ends of the flexible conductor 3 is covered with the sleeve 1 of the present invention. The flexible conductor 3 of the flexible electric wire 5 includes a copper thin wire, a Sn-plated copper thin wire, Ni
Braided body such as coated copper fine wire, Ni fine wire, stainless fine wire,
Or copper sheet, Sn-plated copper sheet, Ni-coated copper sheet, N
Any flexible conductor made of a laminate such as an i thin plate or a stainless thin plate can be used.

The flexible wire 6 covered with the sleeve of the present invention is hardly disintegrated because the glass fiber sleeve to be coated is coated with a heat-resistant resin, so that the inner flexible conductor is exposed and makes contact with other parts. This prevents the occurrence of a short circuit, and prevents the Sn-plated copper fine wire or the like from rubbing against other parts or the like to be worn and corroded. Even if there is a heating element in the vicinity, it is hardly affected by the radiation heat. These effects are stably maintained because the sleeve 1 is excellent in resistance to scatter. Furthermore, since the sleeve 1 has flexibility, the flexibility of the flexible electric wire 6 is not impaired even after the sleeve 1 is covered.

A third aspect of the present invention is a sleeve-covered flexible electric wire in which a flexible conductor made of a braided heat-resistant conductive thin metal wire is covered with a sleeve of the present invention. Since this flexible conductor has heat resistance, it can be used in a more corrosive or higher temperature environment than a flexible conductor made of Sn-plated copper fine wire or the like. Examples of the heat-resistant conductive metal fine wire include a Ni fine wire, a Ni-coated copper fine wire, and a stainless fine wire.

[0012]

(Example 1) Glass fiber sleeve (length 28)
0 mm) was impregnated with an epoxy resin, and this was coated on the flexible conductor portion of the flexible electric wire to produce a sleeve-covered flexible electric wire (see FIG. 2). The flexible electric wire has an S of 0.2 mmφ.
Flexible conductor (thickness 2.
A SUS pipe having a thickness of 0.4 mm and a length of 20 mm is disposed at both ends of 0 mm, a width of 20 mm, and a length of 320 mm, and this is a flexible electric wire (total length of 320) which is compression-molded into a flat terminal.
mm, and the length of the flexible conductor portion is 280 mm).

Comparative Example 1 A sleeve-covered flexible electric wire was manufactured in the same manner as in Example 1 except that a glass fiber sleeve not impregnated with an epoxy resin was used.

Each of the sleeve-coated flexible electric wires manufactured in Example 1 and Comparative Example 1 was subjected to the same vibration as that generated at the muffler-arranged portion for a predetermined time, and the resistance of the sleeves to looseness was examined.

As a result, the glass fiber sleeve of Comparative Example 1 was broken, but the glass fiber sleeve coated with the epoxy resin of Example 1 (Example of the present invention) was not broken at all. This is because the sleeve of Example 1 is coated with epoxy resin and glass fibers are mutually bonded.

(Embodiment 2) Ni-coated copper fine wire was used for a flexible conductor.
Other than using a braid of Ni fine wire or stainless fine wire,
A sleeve-covered flexible electric wire was manufactured in the same manner as in Example 1, and a salt spray test based on JIS K8150 was performed for a predetermined time. The same test was performed on the sleeve-covered flexible electric wire using the braided Sn-plated copper fine wire manufactured in Example 1 as a flexible conductor. The four types of sleeve-coated flexible electric wires are:
As shown in FIG. 2, in each case, the salt water came into contact with the flexible conductor in the salt spray test because there was a gap between the sleeve and the flexible conductor.

When the appearance of the flexible conductor after the test was examined,
The conductor performance of the flexible conductor braided with Sn-plated copper fine wire slightly deteriorated after the salt spray test. No change was observed in the conductor performance.

Each of the sleeve-coated flexible electric wires manufactured in Example 2 was bent at a predetermined curvature while holding both ends of the electric wires by hand, and compared with a case where a glass fiber sleeve not coated with an epoxy resin was coated. No difference in flexibility was observed.

As described above, the flexible electric wire made of a copper thin wire braid or a Ni fine wire braid in which the flexible conductor is coated with Sn or Ni, and the case where the glass fiber sleeve is coated with epoxy resin have been described. The sleeve-coated flexible electric wire of the present invention has the same effect in the case of a flexible electric wire composed of a laminate of a number of conductive thin plates, and also in the case where another heat-resistant resin such as a fluororesin is coated on a glass fiber sleeve. can get. The effect of the glass fiber sleeve and the flexible electric wire of the present invention is exerted not only at a place where a muffler is arranged in a car, but also when used in a place where vibration is likely to occur, such as in a car engine room or near a transformer. Further, the present invention is not limited to the case where the terminal is attached to the end of the conductor, and the same effect can be obtained when the branch terminal is attached to the center of the conductor.

[0020]

As described above, the glass fiber sleeve of the present invention has excellent resistance to scatter because the glass fiber sleeve is coated with a heat-resistant resin. Therefore, by using it for covering a flexible electric wire or the like which is laid at a place where an automobile muffler is likely to be vibrated, it is possible to prevent the internal flexible conductor from being exposed and leaking or being corroded due to wear. . The sleeve-coated flexible electric wire of the present invention using a heat-resistant conductive metal thin wire or a heat-resistant conductive metal thin plate as the flexible conductor can be used well even in a corrosive environment. Therefore,
It has a remarkable industrial effect.

[Brief description of the drawings]

FIG. 1 is a perspective view of a glass fiber sleeve of the present invention.

FIGS. 2A and 2B are side views of the sleeve-covered flexible conductor of the present invention, and FIG.

FIG. 3 is a perspective view of a flexible conductor having a braided conductive metal wire as a flexible conductor.

FIG. 4 is a perspective view of a flexible conductor using a laminate of conductive thin plates as a flexible conductor.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 Glass fiber sleeve coated with heat-resistant resin 2 Conductive metal thin wire 3 Flexible conductor made of braided conductive metal wire 4 Terminal 5 Flexible wire 6 made of braided conductive metal wire as flexible conductor The sleeve-coated flexible electric wire of the present invention 7 A conductive thin plate 8 A flexible conductor composed of a laminate of conductive thin plates 9 A flexible electric wire using a laminate of conductive thin plates as a flexible conductor

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5G309 PA01 5G333 AA10 AA13 AB18 AB22 BA05 CB19 DA03 DA23 EA02 5G357 DA01 DA10 DB03 DC12 DD01 DD05 5G363 AA05 AA07 BA02 DC02

Claims (3)

[Claims] 1. A heat-resistant resin-coated glass fiber sleeve, wherein a heat-resistant resin is coated on a sleeve woven of glass fibers. 2. The sleeve-covered flexible member according to claim 1, wherein the flexible conductor portion of the flexible electric wire having a terminal attached to the flexible conductor is covered with the heat-resistant resin-coated glass fiber sleeve according to claim 1. Electrical wire. 3. The sleeve-coated flexible electric wire according to claim 2, wherein said flexible conductor is formed of a braided body of a heat-resistant conductive thin metal wire.