CN206225094U

CN206225094U - Heat-shrink tube

Info

Publication number: CN206225094U
Application number: CN201620933126.9U
Authority: CN
Inventors: 黄忠喜; 高婷; 周建坤
Original assignee: Tyco Electronics Shanghai Co Ltd; Tyco Electronics Corp
Current assignee: Tyco Electronics Shanghai Co Ltd; TE Connectivity Corp
Priority date: 2016-08-24
Filing date: 2016-08-24
Publication date: 2017-06-06
Anticipated expiration: 2026-08-24

Abstract

A kind of heat-shrink tube is disclosed, including：Cylinder, the cylinder is made up of the conducing composite material with telescopicing performance, and including inner surface and outer surface.At least one of the inner surface of cylinder and outer surface are provided with the insulating protective layer formed using electrophoresis process.Due to forming insulating protective layer on the surface of the conductive cylinder of heat-shrink tube using electrophoresis process, it is possible to use reliably be electrically connected cable by the elasticity of heat-shrink tube, and cable wire connecting portion with insulation and electrical shielding performance.

Description

Heat-shrink tube

Technical field

The utility model is related to a kind of thermal shrinkage type terminal, more particularly to a kind of pyrocondensation on the cable of termination Pipe.

Background technology

Usually, when needing to electrically connect on two cables, simpler method is by two insulating protective layers of cable Partly removed with the screen layer being distributed in insulating protective layer, expose a section lead；Then by wire by welding or phase Mutually the mode such as stranded links together；It is last exposing the insulating materials of position coated insulation adhesive plaster, the insulation tube of wire etc, With the wire of insulated enclosure connecting portion.

In the above-mentioned methods, although the insulating materials of cladding can play sealing to the wire of connecting portion and electric insulation is made With, but electric screening action can not be played.

Utility model content

The purpose of this utility model aims to solve the problem that at least one aspect of the above-mentioned problems in the prior art and defect.

According to the embodiment of one side of the present utility model, there is provided a kind of heat-shrink tube on the cable of termination, Insulating protective layer is formed on the surface of the conductive cylinder of heat-shrink tube using electrophoresis process, cable can be reliably connected electrically in Together, cable wire connecting portion with insulation and electrical shielding performance.

According to the embodiment of one side of the present utility model, there is provided a kind of heat-shrink tube, including：Cylinder, the cylinder by Conducing composite material with telescopicing performance is made, and including inner surface and the inner surface of cylinder and outer surface described in the of outer surface At least one of be provided with using electrophoresis process formed insulating protective layer.

According to a kind of heat-shrink tube of embodiment of the present utility model, the cylinder is by the composite doped with conductive particle It is made.

According to a kind of heat-shrink tube of embodiment of the present utility model, the thickness range of the insulating protective layer is arrived for several microns Tens microns.

According to a kind of heat-shrink tube of embodiment of the present utility model, the insulating protective layer is completely covered on the cylinder It is outside.

According to the heat-shrink tube of embodiment of the present utility model, using electrophoresis process on the surface of the conductive cylinder of heat-shrink tube Form insulating protective layer, it is possible to use reliably be electrically connected cable by the elasticity of heat-shrink tube, and in the wire of cable Connecting portion with insulation and electrical shielding performance.

By below with reference to accompanying drawing to the utility model description, other objects and advantages of the present utility model will It is clear that can simultaneously help be fully understood by the utility model.

Brief description of the drawings

Fig. 1 is shown according to a kind of axial sectional diagrammatical view illustration of the heat-shrink tube of exemplary embodiment of the present utility model；

Fig. 2 is two floor map of cable to be connected；

Fig. 3 is the floor map for being electrically connected two cables shown in Fig. 2 using the heat-shrink tube shown in Fig. 1；And

Fig. 4 is the principle schematic of the heat-shrink tube that the utility model embodiment is made using electrophoresis process.

Specific embodiment

Below by embodiment, and with reference to accompanying drawing, the technical solution of the utility model is described in further detail. In specification, same or analogous drawing reference numeral indicates same or analogous part.It is following referring to the drawings to the utility model reality The explanation for applying mode is intended to explain overall utility model design of the present utility model, and is not construed as to this practicality A kind of new limitation.

In addition, in the following detailed description, for ease of explaining, elaborating many concrete details to provide to present disclosure The comprehensive understanding of embodiment.It should be apparent, however, that one or more embodiments can also in the case of without these details It is carried out.In other cases, known construction and device diagrammatically embodies to simplify accompanying drawing.

According to design generally of the present utility model, there is provided a kind of heat-shrink tube, including：Cylinder, the cylinder is by having The conducing composite material of telescopicing performance is made, and including inner surface and outer surface.In the inner surface and outer surface of the cylinder At least one is provided with the insulating protective layer formed using electrophoresis process.

Fig. 1 is shown according to a kind of axial sectional diagrammatical view illustration of the heat-shrink tube of exemplary embodiment of the present utility model；Fig. 2 It is two floor map of cable to be connected；Fig. 3 is by two cable electricity shown in Fig. 2 using the heat-shrink tube shown in Fig. 1 The floor map of connection.

Referring to shown in 1-3, the heat-shrink tube 10 of the utility model embodiment includes：Cylinder 1, the cylinder 1 is by with flexible The conducing composite material of performance is made, and including inner surface and outer surface.Set on the inner surface of the cylinder 1 and/or outer surface The favourable insulating protective layer 2 formed with electrophoresis process.

Heat-shrink tube according to the utility model embodiment has telescopicing performance, can securely be coated on the wire of cable 30 On 31 position (referring to Fig. 4) being terminated so that two wires of cable 30 31 are reliably connected together；Further, Conducing composite material can have electric screening action to the wire 31 being connected, so as to avoid external electromagnetic field to being passed by wire 31 The electromagnetic interference of defeated electric signal；Further, insulating protective layer can be protected to cylinder, heat-shrink tube is had insulation Performance, can so expand the application of the heat-shrink tube that is made up of conducing composite material in some special dimensions.Further, due to Insulating protective layer 2 is formed on the surface of heat-shrink tube by electrophoresis process, even if the inner surface of heat-shrink tube and/or outer surface have Irregular shape, it is also possible to ensure that insulating protective layer has uniform thickness, and be easily controlled the thickness of insulating protective layer.

In one embodiment, the cylinder 1 is made up of the conductive plastics of molten condition of expressing technique, so can be with Ensure that cylinder 1 has elasticity and electric conductivity.For example, the cylinder is by composite (such as PE (the poly- second doped with conductive particle Alkene), PVDF (Kynoar)) be made.

In one embodiment, the thickness range of insulating protective layer 2 is several microns to tens microns, such as 15 microns.Can To understand, if the thickness of insulating protective layer is too thick, the telescopicing performance of cylinder can be influenceed and be easily broken, if insulation protection The thickness of layer is too thin, then will deteriorate insulating properties and even result in heat-shrink tube electric leakage.

In one embodiment of the present utility model, cable can include the high-tension electricity for transmitting conventional High Level AC Voltage Cable, it is also possible to including the low-voltage cable for transmitting low voltage communication signal.

Referring to Fig. 1-3 descriptions two operating process of cable are connected using the heat-shrink tube of the utility model embodiment.

First, the heat-shrink tube 10 of the utility model embodiment is pre-installed on wherein one cable 30 to be connected； Two insulating protective layers of cable to be connected and the screen layer being distributed in insulating protective layer are partly removed, exposes one section Wire 31, as shown in Figure 2；Then wire 31 is linked together by welding or mutually stranded etc. mode；Heat-shrink tube is moved Move the connecting portion of the wire for exposing；Heat-shrink tube is heated so that heat-shrink tube is closely adhered to the connecting portion of wire On position and neighbouring part external protection, so as to realize the sealing to wire interconnecting piece position.

According to the embodiment of the utility model another aspect, as shown in Figure 4, there is provided a kind of pyrocondensation for making the embodiment The method of pipe 10, comprises the following steps：Electrophoretic coating 21 is provided in electrophoresis tank 20；Using the cylinder 1 of heat-shrink tube an as electricity Swimming electrode, and match somebody with somebody composite electrode 22 to insertion in electrophoretic coating；And by power supply 23 to the iontophoretic electrode and with composite electrode 22 Applied voltage so that be used as the cylinder 1 of iontophoretic electrode, electrophoretic coating 21 and constitute galvanic circle with composite electrode 22, so as in institute The surface contacted with the electrophoretic coating 22 for stating cylinder 1 carries out insulating protective layer 2 by electrophoresis process.

The method of the making heat-shrink tube 10 according to the utility model embodiment, because insulating protective layer 2 passes through electrophoresis process It is formed on the surface of heat-shrink tube 10, even if the inner surface of heat-shrink tube 10 and/or outer surface have irregular shape, it is also possible to Ensure that insulating protective layer has uniform thickness, also, by controlling the voltage of power supply 23 and performing the time of electrophoresis process, hold The thickness of insulating protective layer easy to control.

In one embodiment, the electrophoretic paint includes acrylic CED paint, epoxy cathode electrodip painting or poly- ammonia Ester electrophoretic paint, iontophoretic electrode (i.e. cylinder 1) is described to be used as anode with composite electrode 22 as negative electrode.These electrophoretic paints are complete in water CL or emulsification, the electrophoretic coating viscosity being configured to are very low, it is easy to be impregnated into as the cylinder of coated article inner surface and/ On outer surface, it is particularly suitable for being coated in on abnormally-structured surface.Further, electrophoretic coating has conduction higher Property, conductive ion can the quick swimming under electric field action.Between two electrodes connect direct current for a period of time after, cylinder with The surface (such as inner surface and/or outer surface) of electrophoretic coating contact deposit it is uniform it is fine and closely woven, be not dissolved in water it is membranaceous exhausted Edge protective layer.

In a kind of alternate embodiment, the electrophoretic paint includes acrylic anodic electrophoretic paint, and the iontophoretic electrode is used Make anode, it is described to be used as negative electrode with composite electrode.

The method of the making heat-shrink tube 10 according to a kind of embodiment of the present utility model, also comprises the following steps：To electrophoresis The insulating protective layer drying moisture for being formed afterwards；And being irradiated with ultraviolet solidifies insulating protective layer.For example, insulation will be coated with The cylinder of protective layer is placed on drying in oven, makes insulating protective layer primary solidification.Being irradiated using ultraviolet (UV) can enter one Step solidification insulating protective layer, so as to insulating protective layer is securely attached on the surface of cylinder.The temperature irradiated by ultraviolet It is room temperature to spend, irradiation time about 5 seconds to 30 seconds, preferably 10 seconds.The temperature being heating and curing is 100-160 degree, can be according to pyrocondensation The type selecting of pipe is suitable as PVDF bases heat-shrink tube selects 120 degree, and hardening time is about 15-30 minutes, preferably 20 minutes. This way it is possible to avoid the oxidation of conducing composite material, deformation etc..

In one embodiment, the direct current electrophoretic voltage that power supply 700 is applied be 20-60 volt, perform electrophoresis process when Between be 4-6 minutes.It is appreciated that the thickness of insulating protective layer can be controlled by setting electrophoretic voltage and electrophoresis time.For example, By the thickness control of insulating protective layer in the range of several microns to tens microns, preferably 15 microns.

In one embodiment, during electrophoresis process is performed, the color of electrophoretic coating is changed, and in the cylinder Different parts formed with different colours insulating protective layer.For example, can apply with different colours in electrophoretic coating Pigment so that insulating protective layer has different colors at different positions.Or, when the cylinder of different parts is coated, By cylinder move to needed for color electrophoretic coating in.

Display 231 is provided with power supply 23, to show electrophoretic voltage, electrophoresis time, the concentration of electrophoretic paint, electrophoretic coating The physical parameter such as temperature one or more, with according to these parameter determination electrophoretic effects.

The method of the making heat-shrink tube according to an embodiment of the present utility model, by being made up of conducing composite material Insulating protective layer is formed on cylinder, can keep heat-shrink tube it is elastic while so that heat-shrink tube have insulation and electrical shielding Performance；Insulating protective layer is formed using electrophoresis process, the thickness of insulating protective layer can be easily controlled；Can be in the shape of cylinder The irregular position of shape forms insulating protective layer in uniform thickness；Electrophoretic coating is water paint, using safety and environmental protection；Use electrophoresis Mode can form the insulating protective layer with different colours on conducing composite material.

It will be understood to those skilled in the art that embodiment described above is all exemplary, and this area Technical staff can make improvements, the rushing in terms of not recurring structure or principle of the structure described in various embodiments Independent assortment can be carried out in the case of prominent, so as on the basis of technical problem of the present utility model is solved, realize more kinds of The preparation method of heat-shrink tube and heat-shrink tube.

Although some embodiments of this overall utility model design have been shown and have illustrated, those of ordinary skill in the art will Understand, in the case of the principle and spirit conceived without departing substantially from this overall utility model, these embodiments can be made a change, this The scope of utility model is limited with claim and their equivalent.

It should be noted that word " including " other elements or step are not excluded for, word "a" or "an" is not excluded for multiple.Separately Outward, any element label of claim should not be construed as limiting scope of the present utility model.

Claims

1. a kind of heat-shrink tube, including：Cylinder, the cylinder is made up of the conducing composite material with telescopicing performance, and including interior Surface and outer surface,

Characterized in that, at least one of the inner surface of the cylinder and outer surface are provided with what is formed using electrophoresis process Insulating protective layer.

2. heat-shrink tube as claimed in claim 1, it is characterised in that the thickness range of the insulating protective layer is several microns to several Ten microns.

3. heat-shrink tube as claimed in claim 1 or 2, it is characterised in that the insulating protective layer is completely covered on the cylinder Outside.