CN1196558A

CN1196558A - Seal tape

Info

Publication number: CN1196558A
Application number: CN 97110902
Authority: CN
Inventors: 蔡栋楠; 汪向红
Original assignee: ANPU CONNECTOR Co Ltd SHANGHAI
Current assignee: ANPU CONNECTOR Co Ltd SHANGHAI
Priority date: 1997-04-17
Filing date: 1997-04-17
Publication date: 1998-10-21

Abstract

A sealing tape suitable for outdoor environment is composed of elastic insulating layer (rubber layer) with rough surface, a viscose sealing gel layer on the surface of elastic insulating layer, and a protecting film on the surface of gel layer, and features low cost and convenient use.

Description

Band

The present invention relates to the band of hermetically-sealed cable or wire connecting part.

In many Electrical and Electronic equipment and machine, cable or wire (being referred to as cable here) is widely used in and transmits electric power, launches or receive the signal of telecommunication etc.The example has telecommunication system, automobile, electronic computer etc.In these are used, often need directly or by interconnection device to come interconnecting cable or make cable branch as electrical cnnector.Be preferably the coupling part of these cables of protection, particularly those are used in the cable under the extreme or adverse circumstances that are subjected to effect such as dust, moisture, water, corrosion gas.These coupling parts of cable are exposed to dust, moisture etc. can cause this coupling part corrosion, finally causes this equipment or malfunctioning machine thus.

Do many effort and protected the coupling part of these cables.A typical conventional example is to use the plastic tape that adhesive phase is arranged, i.e. viscose glue plastic tape on its one side.This conventional process only makes the coupling part dustproof when indoor application.This viscose glue plastic tape to sealing moisture, water etc. normally not enough or inoperative.In other words, if immerse in the water or in other liquid being stained with this coupling part with adhesive tape, liquid can enter this conductor of corrosion in the conductor of connecting portion office, make through one period conduction of current can not normally carry out.

Now, United States Patent (USP) 4,229,616,4,550,220,4,749,369 and 5,397,859 disclose electrical cnnector provides better sealing property.For example, United States Patent (USP) 4,229,616 disclose a kind of cable connector lid, and this connector cover has a U-shaped device, around the connector that is interconnected in the conductor in a pair of cable and the cable passage.United States Patent (USP) 4,550,220 disclose a kind of splice insulation body assembly, are used to cover the joint connector that connects a plurality of bare exposed conductor.This insulator has inner foam core and outer plastic jacket, and this inner core and outer cover have formed the long sleeve pipe that is enclosed within on this joint together.

On the other hand, United States Patent (USP) 4,749,369 disclose a kind of connector that cover surrounded that comprises upper shell, lower house and slip clamp.United States Patent (USP) 5,397,859 disclose a kind of box that seals gel that has of the coaxial cable that is used to engage, and with a pair of hinged coating member that is filled with encapsulant, wrap up the coaxial cable that connects or engage hermetically.

These conventional sealing technologies can make conductor or cable joint blocks moisture or waterproof to a certain extent.Yet these technologies are not enough to outdoor utility or severe environmental conditions.In addition, these conventional methods are normally heavy, that cost is big and be difficult to assembling, and are like this when using especially in the open air.

Need at present strongly simple, cost is lower, very effectively and still be easy to the technology that seals, protects the cable joint that will be used for outdoor (as CATV (cable TV) cable) and use for high moisture chamber.

Band of the present invention comprises an elastic insulating layer and an adhesive seal layer of gel material that is attached directly to this elastic insulating layer inner surface with rough external surface.

When storing, available diaphragm or band are built the exposure of sealing gel layer, make dustproof or anti-other foreign matters in this surface.Before around cable joint or coupling part are used or be wrapped in to reality, peel off this diaphragm or band.

Shown in Figure 1 is a preferred embodiment of band of the present invention, the perspective view of Fig. 1 (A) band 10 of the present invention wherein, and Fig. 1 (B) is the profile of the band 10 cut open along the B-B line of Fig. 1 (A).

Fig. 2 is an application examples of Fig. 1 band, and wherein Fig. 2 (A) is a pair of cable that comprises the coupling part, and Fig. 2 (B) is the cable with Fig. 2 (A) of Fig. 1 band sealing.

The figure number explanation:

The 10-band

The 20-elastic insulating layer

30-seals gel layer

The 40-diaphragm

50a, the 50b-cable

60a, the 60b-connector

The 70-coupling part

Introduce the embodiment of band of the present invention in detail referring now to accompanying drawing.

Band 10 is Thin Elastic members, and it contains rubber layer 20, one and places the sealing layer of gel material 30 on rubber layer 20 one sides (as upper surface) and adhere to peelable boundary belt 40 on sealing gel layer 30 exposed surfaces (upper surface).Yet, please note that this rubber layer 20 also can be any elastic insulating material except that rubber.

Preferred process rubber layer 20 makes it have one or two rough surface, and particularly outer surface has rough surface.Preparing a desirable typical method with rubber layer 20 of necessary rough surface is to allow the rubber that heats by a pair of roller with rough surface.In this method, the cloth that this rubber layer 20 looks like weaving from two surfaces.

Preferred boundary belt 40 is to be made by one deck is coated with plastic film on a surface a piece of paper, this surface attachment to or adhere to and seal gel layer 30.Boundary belt 40 prevents that effectively dust or any foreign matter from adhering on its exposed surface.Plastic film is coated on the face of boundary belt 40, makes its sealing band when reality is used or used be easy to peel off from sealing gel layer 30.In this method, the band 10 that has boundary belt 40 is easy to handle and deposit with any desirable form, as if the same shape in the shape of a spiral of conventional adhesive tape self is wound on together.

The sealing gel of sealing gel layer 30 is based on the viscogel material of rubber.As a result, sealing gel layer 30 can be fixed on the surface of rubber layer 20 and enough bonding forces are arranged.Preferred sealing gel has at least about 50 (10 ^-1Mm) cone penetration, maximum flexibility and this elasticity holder had good adhesiveness at least about 200%.In addition, rubber layer 20 is to have maximum flexibility to be at least 50% elastomeric material.

Then, introduce the application of band shown in Figure 1 10 with reference to Fig. 2.Fig. 2 (A) is that with the perspective view that

coaxial cable

50a, 50b engage one another, this

coaxial cable

50a, 50b are preferred for transmitting cable TV (CATA) signal by coaxial connector 60a, the 60b that can cooperate with the end of each

coaxial cable

50a, 50b.

Fig. 2 (B) is with the coaxial cable 50a with Fig. 2 (A) coupling part 70 of Fig. 1 band 10 windings, the perspective view of 50b.Can clearly observe from Fig. 2 (B), as conventional viscose glue plastic tape, be wrapped in a spiral manner around 70 places, coupling part with the band 10 of a segment length.

When noting around being wrapped in coupling part 70, rubber layer 20 has stretching to a certain degree.The sealing gel layer 30 of the rubber layer 20 of this stretching in rubber layer 20 applied a desired pressure, thereby the sealing gel that is diffused on the sealing gel layer 30 is filled gap or space.Should be specifically noted that common interaction of permeability of the elasticity of rubber layer 20 and sealing gel stops that moisture, water or exotic enter the inside of

coaxial cable

50a, 50b coupling part.Because the sealing gel adheres on the rough surface of rubber layer well when twining, so between cable 50 and band 10, do not need the jointing material that provides other.The end 11 of band 10 oneself is being fixed under the situation that does not have other fixture well.This point is used particular importance in the open air.

The water-immersed water test of the cable that has the coupling part has been obtained surpassing continuous 30 days satisfactory seal effect, and the longest only 3-7 of commercial band days effective.

Though above introduction and showed a preferred embodiment of the present invention should be noted the embodiment of the present invention shown in should only not being confined to.Clearly do not depart from the scope of the present invention and spirit for the various changes that those of ordinary skills made.

For example, the sealing band can have a certain width that is cut into necessary width in actual applications.In addition, the sealing band be used in phone or other use in sealing one end be the matching connector of cable conductor.This cable is any cable except coaxial cable.

Can find out obviously that from above-mentioned introduction band of the present invention is simple especially, cost is lower and be easy to application or use.In addition, it also seals the adapter lead that comprises or do not comprise connector effectively.Therefore, the sealing band is effective especially to the field or the outdoor application that are exposed under the mal-condition.

Claims

1. one kind is wrapped in cable segment connector band all around, comprising:

Elastic insulating layer with rough external surface; With

A sealing gel that adheres on the said elastic insulating layer inner surface.

2. the band of claim 1, wherein said elastic insulating layer is made by rubber.

3. the band of claim 1, wherein the maximum flexibility of said elastic insulating layer is at least 50%.

4. the band of claim 1, wherein said sealing gel has good cementability to the said rough surface of said elastic insulating layer.

5. the band of claim 1, wherein said sealing gel has at least about 50 (10 ^-1Mm) cone penetration and at least about 200% maximum elongation.