CN205984367U - Oil -proof cable - Google Patents

Abstract

The utility model provides an oil -proof cable relates to cable technical field, for solving the relatively poor problem of cable oil resistivity among the prior art. The cable includes: the cable core, the cable core is formed by the transposition of a plurality of conductors, each the conductor all overlaps outward and is equipped with the insulating layer, the insulating layer is the butyronitrile insulating layer, the cable core overcoat is equipped with the weaving layer, the weaving layer overcoat is equipped with the sheath, the sheath is the butyronitrile sheath. The oil resistance of cable is better, and life is longer, and the security performance is higher.

Description

A kind of oil resistant cable

Technical field

This utility model is related to field of cable technology, especially relates to a kind of oil resistant cable.

Background technology

Cable, is made up of the conductor and outsourcing insulating protective layer of one or more mutually insulated, by electric power or information from It is transferred to the wire at another place at one；Or, being the similar rope stranded by several or several groups of wires (every group at least two) Cable, mutually insulated between every group of wire, and being often twisted into round a center, whole outside is surrounded by the covering of high-insulation Layer.Cable has interior energising, the feature of external insulation.

Because cable is frequently utilized under severe working condition, it is therefore desirable to cable has good oil resistance, preventing oil For the corrosion of cable, oil compression cable will lead to cable surface to ftracture, and the performance of impact cable leads to the service life of cable Shorten, the interruption of cable transmission can be caused simultaneously, cause the short circuit of electrical equipment, lead to electrical equipment to damage.

Utility model content

The purpose of this utility model is to provide a kind of oil resistant cable, to solve the oil resistant of cable present in prior art The poor technical problem of property.

The oil resistant cable that this utility model provides, including：

Cable core, described cable core is formed by some conductor strand, is all arranged with insulating barrier, described insulating barrier outside each described conductor For butyronitrile insulating barrier；

It is arranged with braiding layer outside described cable core；

It is arranged with sheath, described sheath is butyronitrile sheath outside described braiding layer.

Alternatively, be provided with armor outside described braiding layer, described armor be located at described braiding layer and described sheath it Between.

Further, be provided with internal shield in described insulating barrier, described internal shield be located at described conductor and described absolutely Between edge layer.

Preferably, it is provided with heat-sensitive variable colour layer outside described sheath.

Preferably, it is provided with protective clear layer outside described heat-sensitive variable colour layer.

Further, described conductor is formed by some wire strandings.

Alternatively, described conductor is made up of tin-coated copper.

It is preferred that described conductor is by high purity oxygen free copper.

Preferably, described braiding layer carries enhancement layer for zinc-coated wire.

Alternatively, described braiding layer is metallic copper braiding layer.

With respect to prior art, oil resistant cable described in the utility model has the advantage that：

Oil resistant cable described in the utility model

Insulating barrier and sheath are made by butyronitrile material, provide duplicate protection for cable core, can protect oil resistant cable Cable core use in the environment of oil immersion, and prevent oil resistant cable sheath ftracture, cause the short circuit of oil resistant cable, cause electrical equipment Damage, increase the resistance to tension of oil resistant cable, can allow oil resistant cable adapt to oil more than environment, expand making of oil resistant cable With scope, substantially increase the service life of oil resistant cable.

Brief description

In order to be illustrated more clearly that this utility model specific embodiment or technical scheme of the prior art, below will be right In specific embodiment or description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, below describe In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

The schematic cross-section one of the oil resistant cable that Fig. 1 provides for this utility model embodiment；

The schematic cross-section two of the oil resistant cable that Fig. 2 provides for this utility model embodiment.

Reference：

1- conductor；2- insulating barrier；

3- braiding layer；4- sheath；

5- internal shield；6- armor.

Specific embodiment

Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described it is clear that described Embodiment is a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, this The every other embodiment that field those of ordinary skill is obtained under the premise of not making creative work, broadly falls into this practicality Novel protected scope.

In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term Directly ", the orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, are only For the ease of description this utility model with simplify description, rather than instruction or the hint device of indication or element must have specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or hint relative importance.

In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning in this utility model for the language.

The schematic cross-section one of the oil resistant cable that Fig. 1 provides for this utility model embodiment；Fig. 2 is that this utility model is real The schematic cross-section two of the oil resistant cable of example offer is provided.

As depicted in figs. 1 and 2, the oil resistant cable that this utility model embodiment provides, including：Cable core, insulating barrier 2, braiding Layer 3 and sheath 4；Wherein, cable core is formed by some conductors 1 are stranded, and each conductor 1 is outer to be all arranged with insulating barrier 2, and insulating barrier 2 is fourth Nitrile insulator layer；It is arranged with braiding layer 3 outside cable core；It is arranged with sheath 4, sheath 4 is butyronitrile sheath outside braiding layer 3.

Insulating barrier 2 and sheath 4 are made by butyronitrile material, provide duplicate protection for cable core, can protect oil resistant electricity The cable core of cable uses in the environment of oil immersion, and prevents oil resistant cable sheath 4 from ftractureing, and causes the short circuit of oil resistant cable, causes electricity The damage of device, increases the resistance to tension of oil resistant cable, can allow oil resistant cable adapt to oil more than environment, expand oil resistant cable Range, substantially increase the service life of oil resistant cable.

It is noted that insulating barrier 2 and sheath 4 all can be made up of nitrile rubber or butyronitrile polrvinyl chloride.

Because oil resistant cable is when laying, may be acted on by various mechanical external forces, such as bend, stretch, reverse, just Pressure, impact and vibrations etc..Mechanical external force be applied on oil resistant cable and all can cause certain damage to oil resistant cable, in order to protect Oil resistant cable structural integrity and electric property, improve the service life of cable, are provided with armor 6 outside the braiding layer 3 of cable, Armor 6 is located between braiding layer 3 and sheath 4.Armor 6 is specifically as follows steel-tape armouring layer 6 or steel wire armor layer 6.

Specifically, steel-tape armouring layer 6 adopts double steel band, gap around-packing technology, by steel band around being wrapped in braiding layer 3, then Extrude sheath 4, so that oil resistant cable can bear bigger radial pressure；How steel wire armor layer 6 is using with mild steel wire Around-packing technology, after stranding steel wire press certain pitch wrapped in braiding layer 3, then extrude sheath 4, so that oil resistant is electric Cable can bear bigger axial tension.

In addition to above-mentioned armor 6, armor 6 also can adopt aluminium strip, aluminum pipe etc..

Due to being likely to form air gap between conductor 1 and insulating barrier 2, if conductor 1 is rough, electric field collection can be caused In, in order to avoid there is shelf depreciation between conductor 1 and insulating barrier 2, in a preferred embodiment, setting in insulating barrier 2 There is internal shield 5, internal shield 5 is located between insulating barrier 2 and conductor 1.Internal shield 5 is made up of quasiconductor 1 material, and is shielded Conductor 1 isoelectric level covered, and with insulating barrier 2 good contact, thus avoid between conductor 1 and insulating barrier 2 occur shelf depreciation. Because the electric current that oil resistant cable passes through is larger, electromagnetic field around electric current, can be produced, internal shield 5 can will be this electromagnetic-field-shielded In oil resistant cable, thus avoiding this electromagnetic field effects other elements.Internal shield 5 can be foil shielding layer, copper mesh shielding Layer or tin-coated copper net screen layer, shield effectiveness can increase with the increase of count and the number of plies.

In a kind of specific embodiment that this utility model provides, outside sheath 4, it is provided with heat-sensitive variable colour layer, heat-sensitive variable colour Layer is made up of thermosensitive chromotropic material, can assume different colours at different temperatures.During normal use, user can basis The color of heat-sensitive variable colour layer easily learns the probable ranges of the surface temperature of ceramic fire resisting cable, work as short circuit etc. Fault and lead to can cut off the electricity supply rapidly when cable surface temperature is too high, ensure use safety.

In order to avoid the abrasion of heat-sensitive variable colour layer, can sheathed protective clear layer outside heat-sensitive variable colour layer.Protective clear layer is permissible Protection heat-sensitive variable colour layer, prevents heat-sensitive variable colour layer from wearing and tearing, and meanwhile, permeable protective clear layer understands the face of observation heat-sensitive variable colour layer Color.

As depicted in figs. 1 and 2, conductor 1 can only include a wire, or, conductor 1 can include multiple wires simultaneously, leads Body 1 is formed by multiple wire strandings.

There is the metal of conducting function：In aluminum, ferrum, copper and this different materials silver-colored, the metallic conductivity of silver and heat conductivity Highest, has good corrosion resistance and oxidative resistance it is easy to weld, but the leading as the electric wire in daily life using silver Body 1, will improve the living cost of user；The electric conductivity of aluminum is only second to silver, copper and gold, and heat conductivity is good, good corrosion resistance, plasticity Good, proportion is little, but the mechanical strength of aluminum is poor, and tensile strength is low, is difficult to weld；The electric conductivity of copper is only second to silver, leads Hot be only second to Jin Heyin, anticorrosive, nonmagnetic, plasticity good and be easy to weld, price be less than Jin Heyin, therefore, in this enforcement In example, conductor 1 is made of copper.

In order that conductor 1 has higher conductivity, further, the conductor 1 in the present embodiment is by high purity oxygen free copper Make.In high purity oxygen free copper, the content of oxygen is not more than 0.00%, and content of impurities is not more than 0.05%, and the purity of copper is more than 99.95% it is ensured that the conductor 1 being made up of high purity oxygen free copper has higher conductivity.Make conductor 1 by high purity oxygen free copper Make, make conductor 1 have higher conductivity, improve the transmission current-carrying capacity of electric wire, make the loss of electric wire little, not only user Save electric cost, and be capable of the service life of preferably extending wire.

During using electric wire, the surface of the conductor 1 being made of copper it may happen that oxidative phenomena, when copper is oxidized Form Aerugo afterwards, the formation of Aerugo can increase the resistance of conductor 1, so that the electric conductivity of conductor 1 is reduced, in order to ensure that this conductor 1 has There are higher electric conductivity and longer service life, further, conductor 1 can be made up of tin-coated copper.Tin-coated copper refers to plated surface There is the copper of a thin layer metallic tin, when stannum is oxidized, form tin dioxide thin film, prevent the stannum of inside and the copper being wrapped up by stannum from entering one Step is oxidized, thus both having had good corrosion resistance, has certain intensity and hardness again, and good moldability is easily welded again, because This, in copper plated surface a thin layer metallic tin, be prevented from copper oxidized and corrosion.Make the electric wire that this utility model embodiment provides In conductor 1 be made up of tin-coated copper, both ensure that the electric conductivity of conductor 1, extended the service life of electric wire again.

Braiding layer 3 is can be metallic copper braiding layer 3, and metallic copper braiding layer 3 Main Function is：

1. the shielding action of anti-electromagnetic interference such as the indigo plant cable of tinned copper wire braiding, control cable of proof copper-wire braided etc.；

2. eliminating the shielding action of power cable surface potential. it plays constraint electric lines of force and eliminates faradism, such as high-tension electricity Total shielding of cable；

3. the shielding action of safeguard protection. braiding copper wire the contact good with ground core or make ground wire outside main core insulation With drain conditions can be reacted in time, such as shield type mine cable.

Or, in another kind of specific embodiment, braiding layer 3 carries enhancement layer for zinc-coated wire.

Zinc-coated wire carries enhancement layer：

1. mechanical protection effect；

2. bear longitudinal pull-off force；

3. magnetic field shielding.

Finally it should be noted that：Various embodiments above is only in order to illustrating the technical solution of the utility model, rather than it is limited System；Although being described in detail to this utility model with reference to foregoing embodiments, those of ordinary skill in the art should Understand：It still can be modified to the technical scheme described in foregoing embodiments, or to wherein some or all of Technical characteristic carries out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this practicality new The scope of type each embodiment technical scheme.

Claims (10)

1. a kind of oil resistant cable is it is characterised in that include：

Cable core, described cable core is formed by some conductor strand, is all arranged with insulating barrier outside each described conductor, and described insulating barrier is fourth Nitrile insulator layer；

It is arranged with braiding layer outside described cable core；

It is arranged with sheath, described sheath is butyronitrile sheath outside described braiding layer.

2. oil resistant cable according to claim 1 is it is characterised in that be provided with armor outside described braiding layer, described armour Dress layer is located between described braiding layer and described sheath.

3. oil resistant cable according to claim 2 is it is characterised in that being provided with internal shield in described insulating barrier, described Internal shield is located between described conductor and described insulating barrier.

4. oil resistant cable according to claim 1 is it is characterised in that be provided with heat-sensitive variable colour layer outside described sheath.

5. oil resistant cable according to claim 4 is it is characterised in that be provided with transparency protected outside described heat-sensitive variable colour layer Layer.

6. oil resistant cable according to claim 1 is it is characterised in that described conductor is formed by some wire strandings.

7. oil resistant cable according to claim 1 is it is characterised in that described conductor is made up of tin-coated copper.

8. oil resistant cable according to claim 1 is it is characterised in that described conductor is by high purity oxygen free copper.

9. oil resistant cable according to claim 1 is it is characterised in that described braiding layer carries enhancement layer for zinc-coated wire.

10. oil resistant cable according to claim 1 is it is characterised in that described braiding layer is metallic copper braiding layer.