CN117711684A - Waterproof cable assembly and manufacturing method thereof - Google Patents

Waterproof cable assembly and manufacturing method thereof Download PDF

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Publication number
CN117711684A
CN117711684A CN202311839858.2A CN202311839858A CN117711684A CN 117711684 A CN117711684 A CN 117711684A CN 202311839858 A CN202311839858 A CN 202311839858A CN 117711684 A CN117711684 A CN 117711684A
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China
Prior art keywords
cable
layer
fiber
terminal
curing
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CN202311839858.2A
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Chinese (zh)
Inventor
邹志成
于海滨
王一
王许
陈媛
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Nuctech Co Ltd
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Nuctech Co Ltd
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Priority to CN202311839858.2A priority Critical patent/CN117711684A/en
Publication of CN117711684A publication Critical patent/CN117711684A/en
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Abstract

The application provides a cable waterproof assembly and a manufacturing method of the cable waterproof assembly. The waterproof assembly of cable includes: the cable body comprises a conductive core wire, an insulating layer sleeved on the periphery of the conductive core wire and an outer cable protective layer sleeved on the periphery of the insulating layer, wherein the outer cable protective layer comprises a fiber woven structure section and a fiber infiltration curing section which are connected along the axial direction of the cable body, the fiber woven structure section is formed by a fiber woven layer, and the fiber infiltration curing section is formed by curing protective liquid after the protective liquid infiltrates the fiber woven layer; and the cable protection heat shrinkage layer is arranged corresponding to the fiber infiltration curing section, is wrapped on the periphery of the corresponding fiber infiltration curing section and is formed by heat shrinkage of a heat shrinkage material covered on the periphery of the fiber infiltration curing section.

Description

Waterproof cable assembly and manufacturing method thereof
Technical Field
The present disclosure relates to power transmission devices, and more particularly, to a waterproof cable assembly and a method for manufacturing the waterproof cable assembly.
Background
When the fiber-woven outer shield cable is connected to the terminal or the fiber-woven outer shield cable passes through the structure, the fiber-woven outer shield cable is generally subjected to a waterproof treatment, and the manner of performing the waterproof treatment on the fiber-woven outer shield cable in the related art known to the inventor may be: the area of the cable, which needs to be waterproof, is held tightly by the structural component so as to achieve the aim of waterproof while fixing the cable. After such treatment, a large amount of water cannot flow into the area of the cable to be held, which needs to be waterproof, and moisture can be prevented from entering the inside of the terminal to some extent, or from one side of the structure to the other side of the structure. However, due to the capillary action of the fiber structure in the fiber woven outer protective layer, moisture slowly permeates through the fiber woven outer protective layer, and complete water resistance cannot be achieved.
The above statements are merely to provide background information related to the present application and may not necessarily constitute prior art.
Disclosure of Invention
The purpose of the present application is to provide a waterproof cable assembly and a method for manufacturing the waterproof cable assembly, which aim to improve waterproof performance.
A first aspect of the present application provides a cable waterproofing assembly comprising:
the cable comprises a cable body, a conductive core wire, an insulating layer sleeved on the periphery of the conductive core wire and an outer cable protective layer sleeved on the outer periphery of the insulating layer, wherein the outer cable protective layer comprises a fiber woven structure section and a fiber infiltration curing section which are connected along the axial direction of the cable body, the fiber woven structure section is formed by a fiber woven layer, and the fiber infiltration curing section is formed by curing protective liquid after infiltrating the fiber woven layer with the protective liquid; and
the cable protection heat shrinkage layer is correspondingly arranged with the fiber infiltration curing section, and is wrapped on the periphery of the corresponding fiber infiltration curing section and formed by heat shrinkage of a heat shrinkage material covered on the periphery of the fiber infiltration curing section.
In some embodiments of the cable waterproofing assembly, the cable waterproofing assembly comprises two or more cable bodies, two or more cable outer protective layers of the two or more cable bodies comprise two or more fiber-impregnated cured sections which at least partially overlap along the axial direction of the cable bodies, and the same cable protective heat shrink layer is correspondingly wrapped around the two or more fiber-impregnated cured sections.
In some embodiments of the cable waterproofing assembly, the cable waterproofing assembly further comprises a curing filler positioned between the two or more fiber-impregnated curing sections and the corresponding same cable protective heat shrink layer, the curing filler being formed by curing a protective liquid filled between the two or more fiber-impregnated curing sections and the cable protective heat shrink layer.
In some embodiments of the cable flashing assembly, the cable flashing assembly further comprises:
a terminal connected with the conductive core wire of the first end of the cable body; and
the terminal protection heat shrinkage layer is formed by heat shrinkage of a heat shrinkage material covering the periphery of at least one part of the terminal.
In some embodiments of the cable waterproofing assembly, the first end of the cable body includes the fiber impregnated cured section and the cable protective heat shrink layer; wherein the method comprises the steps of
The terminal protection heat shrinkage layer and the cable protection heat shrinkage layer are integrally formed; or (b)
One end of the terminal protection heat shrinkage layer is positioned on the periphery of the cable protection heat shrinkage layer.
In some embodiments of the cable waterproofing assembly, the conductive core and the insulation layer of the first end of the cable body are located outside the fiber impregnated cured section along an axial direction of the cable body;
The cable waterproof assembly further comprises a protective liquid curing section, wherein the protective liquid curing section is formed by curing protective liquid covering the periphery of at least one part of the terminal and the periphery of the insulating layer, close to one end of the terminal, of the cable body;
one end, close to the terminal, of the cable protection heat shrinkage layer is wrapped on the periphery of the protection liquid curing section;
the terminal protection heat shrinkage layer is formed by heat shrinkage of a heat shrinkage material covered on the protection liquid curing section or heat shrinkage of a heat shrinkage material covered on one end, close to the terminal, of the protection liquid curing section and the cable protection heat shrinkage layer.
In some embodiments of the cable waterproofing assembly, at least one end of the fiber impregnated cured section is located outside the corresponding cable protective heat shrink layer along the axial direction of the cable body.
In some embodiments, the cable waterproofing assembly, the heat shrink material comprises a heat shrink tube or a glue-containing heat shrink tube.
In some embodiments of the cable waterproofing assembly, the protective liquid comprises a modified alkyd resin tri-proof paint.
A second aspect of the present application provides a method for manufacturing a waterproof assembly for a cable according to the first aspect of the present application, comprising:
A step of forming the cable body, wherein the cable to be treated is processed into the cable body, the cable to be treated comprises a conductive core wire, an insulating layer sleeved on the periphery of the conductive core wire and a fiber woven layer sleeved on the periphery of the insulating layer, the fiber woven layer is soaked in a protective liquid at a position where the cable needs to be waterproof, the protective liquid is cured to form a fiber soaking and curing section, and the other fiber woven layers form fiber woven structure sections connected with the fiber soaking and curing section along the axial direction of the cable so as to form the outer protective layer; and
and forming a cable protection heat-shrinkable layer, wherein the cable protection heat-shrinkable layer is formed by heat-shrinking a heat-shrinkable material covered on the periphery of the fiber infiltration curing section.
In some embodiments of the method of manufacturing a cable waterproofing assembly, the step of forming the cable body includes uniformly brushing or dip-coating the protective liquid onto the fiber braid at a location where the cable to be treated needs to be waterproof, and waiting for the protective liquid to infiltrate the fiber braid and then curing the fiber-infiltrated cured section and the fiber-woven structure section forming the outer protective layer.
In some embodiments of the method of manufacturing a cable waterproofing assembly, the step of forming the cable body includes: processing the two or more cables to be processed into two or more cable bodies, wherein the two or more outer protective layers of the two or more cable bodies comprise two or more fiber infiltration curing sections which are at least partially overlapped along the axial direction of the cable bodies;
The step of forming the cable protective heat shrink layer comprises the following steps: and enabling the heat-shrinkable material covering the more than two fiber infiltration curing sections to be subjected to heat shrinkage so as to enable the same cable protection heat-shrinkable layer to be arranged on the peripheries of the more than two fiber infiltration curing sections.
In some embodiments of the method of manufacturing a cable waterproofing assembly, the step of forming a cable protective heat shrink layer comprises: covering the peripheries of the two or more fiber infiltration curing sections with the heat shrinkage material for forming the cable protection heat shrinkage layer, wherein the peripheries of the cable protection heat shrinkage layer and the two or more fiber infiltration curing sections formed by heat shrinkage of the heat shrinkage material are provided with accommodating spaces, and the end parts of the cable protection heat shrinkage layer are provided with injection ports communicated with the accommodating spaces; and
the manufacturing method further comprises the step of forming a curing filling part, wherein the step of injecting the protective liquid into the injection opening, and waiting for curing of the protective liquid to form the curing filling part after the protective liquid fills the accommodating space.
In some embodiments of the method of manufacturing a cable waterproofing assembly, the step of forming a cable body includes positioning the conductive core and the insulating layer of the first end of the cable body axially of the cable body outside the fiber impregnated cured section;
The step of forming the cable protective heat shrink layer comprises the following steps: the injection opening is positioned between the cable protection heat shrinkage layer and the insulating layer of the cable body, so that the injection opening and one end, close to the injection opening, of the fiber infiltration curing section are spaced along the axial direction of the cable body.
In some embodiments of the method of manufacturing a cable waterproofing assembly, the spacing is between 5mm and 10mm.
In some embodiments of the method of manufacturing a cable waterproofing assembly, the method of manufacturing further comprises:
a step of connecting a terminal, comprising connecting a terminal with the conductive core wire of the first end of the cable body; and
a step of forming a terminal protection heat shrink layer comprising heat shrinking a heat shrink material covering an outer periphery of at least a portion of the terminal to form the terminal protection heat shrink layer.
In some embodiments of the method of manufacturing a cable waterproofing assembly, the step of forming a cable body includes providing a first end of the cable body including the fiber impregnated cured section and the cable protective heat shrink layer;
the step of forming a terminal protective heat shrink layer includes integrally forming the terminal protective heat shrink layer with the cable protective heat shrink layer; or one end of the terminal protection heat shrinkage layer is positioned on the periphery of the cable protection heat shrinkage layer.
In some embodiments of the method of manufacturing a cable waterproofing assembly, the step of forming a cable body includes positioning the conductive core and the insulating layer of the first end of the cable body axially of the cable body outside the fiber impregnated cured section;
the manufacturing method further comprises a step of forming a shielding liquid curing section, wherein the step of forming the shielding liquid curing section comprises the steps of forming the shielding liquid curing section by curing shielding liquid covering the periphery of at least one part of the terminal and the periphery of the insulating layer of the cable body close to one end of the terminal, and wrapping one end of the cable shielding heat shrinkage layer close to the terminal on the periphery of the shielding liquid curing section;
the step of forming the terminal protection heat shrink layer includes: and (3) performing thermal shrinkage on the thermal shrinkage material covered on the protection liquid curing section to form the terminal protection thermal shrinkage layer, or performing thermal shrinkage on the thermal shrinkage material covered on one end, close to the terminal, of the protection liquid curing section and the cable protection thermal shrinkage layer to form the terminal protection thermal shrinkage layer.
Based on the cable waterproof assembly and the manufacturing method of the cable waterproof assembly, the waterproof part of the fiber woven outer protective layer cable which is to be subjected to waterproof treatment and is provided with the fiber woven layer serving as the outer protective layer is fully soaked and filled with the protective liquid which is liquid before solidification, so that moisture is prevented from entering the cable from the fiber woven layer, capillary action of the inside of the fiber woven layer to the moisture is blocked, and after the protective liquid is solidified, the waterproof part is subjected to heat shrinkage wrapping by using a heat shrinkage material such as a heat shrinkage pipe or a glue-containing heat shrinkage pipe, so that second protection is provided. Under the double protection of the protective liquid and the heat shrinking pipe containing the glue, the waterproof part of the fiber woven outer protective layer cable can be well waterproof.
Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the present application, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
fig. 1 is a schematic structural diagram of a cable waterproof assembly according to an embodiment of the present application.
Fig. 2 is a schematic cross-sectional view of the cable waterproofing assembly of the embodiment shown in fig. 1.
Fig. 3 is a schematic structural view of a cable waterproof assembly according to an embodiment of the present application.
Fig. 4 is a schematic view of the cable waterproofing assembly of the embodiment of fig. 3 with portions cut away.
Fig. 5 is a partially enlarged schematic structural view of fig. 4.
Fig. 6 is a schematic cross-sectional view of a cable waterproofing assembly according to an embodiment of the present application at one step in the manufacturing process.
Fig. 7 is a schematic cross-sectional view of a step in the manufacturing process of the cable waterproofing assembly of the embodiment shown in fig. 6.
Fig. 8 is a schematic cross-sectional view of a step in the manufacturing process of the cable waterproofing assembly of the embodiment shown in fig. 6.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that, the terms "first," "second," etc. are used for defining the components, and are merely for convenience in distinguishing the corresponding components, and if not otherwise stated, the terms are not to be construed as limiting the scope of the present application.
In the description of the present application, it should be understood that the azimuth or positional relationship indicated by the azimuth word is generally based on the azimuth or positional relationship shown in the drawings, and is merely for convenience of description and simplification of the present application, and these azimuth words do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1-8, embodiments of the present application provide a cable waterproofing assembly. The cable waterproof assembly comprises a cable body 1 and a cable protection heat shrinkage layer 2.
The cable body 1 comprises a conductive core wire 13, an insulating layer 12 sleeved on the periphery of the conductive core wire 13 and a cable outer protective layer 11 sleeved on the periphery of the insulating layer 12. The cable outer shield 11 comprises a fiber woven structure section and a fiber impregnated cured section 5 connected in the axial direction of the cable body 1. The fiber braid structural segments are formed from fiber braids. The fiber infiltration curing section 5 is formed by curing after the protective liquid infiltrates the fiber woven layer.
The cable protection heat shrinkage layer 2 is arranged corresponding to the fiber infiltration curing section 5. The cable protection heat shrinkage layer 2 is wrapped on the periphery of the corresponding fiber infiltration curing section 5 and is formed by heat shrinkage of a heat shrinkage material covered on the periphery of the fiber infiltration curing section 5.
The utility model provides a cable waterproofing assembly adopts before the solidification liquid protection liquid, fully infiltrates the waterproof position of the outer inoxidizing coating cable of fiber woven layer as outer inoxidizing coating that has the fiber woven layer that will carry out waterproof treatment to prevent that moisture from getting into the cable from the fiber woven layer, and block the capillary action of fiber woven layer inside to moisture, wait that protection liquid solidification back, reuse pyrocondensation material, like pyrocondensation pipe or contain the pyrocondensation pipe and carry out pyrocondensation parcel to waterproof position, in order to provide the second and overlap the protection. Under the double protection of the protective liquid and the heat shrinking pipe containing the glue, the waterproof part of the fiber woven outer protective layer cable can be well waterproof.
As shown in fig. 6 to 8, in the cable waterproof assembly of some embodiments, the cable waterproof assembly includes two or more cable bodies 1, two or more cable outer protective layers 11 of the two or more cable bodies 1 include two or more fiber-impregnated cured sections 5 that at least partially overlap along the axial direction of the cable body 1, and the same cable protective heat shrinkage layer 2 is correspondingly wrapped around the peripheries of the two or more fiber-impregnated cured sections 5.
The cable waterproof assembly comprises more than two cable bodies 1 and the same cable protection heat shrinkage layer 2, and is favorable for performing waterproof treatment on waterproof parts of more than two cable bodies 1.
As shown in fig. 6 to 8, in the cable waterproof assembly of some embodiments, the cable waterproof assembly further includes a curing filling portion 7, the curing filling portion 7 is located between two or more fiber-impregnated curing sections 5 and the corresponding same cable protection heat shrink layer 2, and the curing filling portion 7 is formed by curing a protection liquid filled into a gap between the two or more fiber-impregnated curing sections 5 and the cable protection heat shrink layer 2. The gap serves as a holding space for the shielding liquid.
The setting of the curing filling part 7 is beneficial to preventing the cable protection heat shrinkage layer 2 from being tightly wrapped at the gap between the two or more fiber infiltration curing sections 5 during heat shrinkage, so that the waterproof performance of the waterproof part of the two or more cable bodies 1 after waterproof treatment is better.
As shown in fig. 3-5, in some embodiments of the cable waterproofing assembly, the cable waterproofing assembly further includes a terminal 4 and a terminal protective heat shrink layer 3. The terminal 4 is connected to the conductive core wire 13 at the first end of the cable body 1. The terminal protection heat shrinkage layer 3 is formed by heat shrinkage of a heat shrinkage material covering the outer periphery of at least a part of the terminal 4.
The cable waterproof assembly performs waterproof treatment on the joint of the terminal 4 and the cable, and is beneficial to improving the waterproof performance of the joint.
As shown in fig. 3-5, in some embodiments of the cable waterproofing assembly, the first end of the cable body 1 includes a fiber impregnated cured section 5 and a cable protective heat shrink layer 2. Wherein, the terminal protection heat shrinkage layer 3 and the cable protection heat shrinkage layer 2 are integrally formed; or one end of the terminal protection heat shrink layer 3 is located at the outer circumference of the cable protection heat shrink layer 2.
The terminal protection heat shrinkage layer 3 and the cable protection heat shrinkage layer 2 are integrally formed, or one end of the terminal protection heat shrinkage layer 3 is positioned at the periphery of the cable protection heat shrinkage layer 2, so that the waterproof performance of the joint of the terminal 4 and the cable is improved.
As shown in fig. 3 to 5, in the cable waterproof assembly of some embodiments, the conductive core wire 13 and the insulating layer 12 of the first end of the cable body 1 are located outside the fiber-wetting cured section 5 in the axial direction of the cable body 1. The cable waterproofing assembly further comprises a shielding fluid curing section 6. The shielding liquid curing section 6 is formed by curing a shielding liquid covering the outer periphery of at least a part of the terminal 4 and the outer periphery of the insulating layer 12 of the cable body 1 near the end of the terminal 4. One end of the cable protection heat shrinkage layer 2, which is close to the terminal 4, is wrapped on the periphery of the protection liquid curing section 6. The terminal protection heat shrinkage layer 3 is formed by heat shrinkage of a heat shrinkage material covered on the protection liquid curing section 6 or heat shrinkage of a heat shrinkage material covered on one end, close to the terminal 4, of the protection liquid curing section 6 and the cable protection heat shrinkage layer 2.
The arrangement of the protective liquid curing section 6 is beneficial to further improving the waterproof performance of the joint of the terminal 4 and the cable.
As shown in fig. 2, 5 and 6, in the cable waterproof assembly of some embodiments, at least one end of the fiber infiltration curing section 5 is located outside the corresponding cable protective heat shrinkage layer 2 along the axial direction of the cable body 1.
At least one end of the fiber infiltration curing section 5 is positioned at the outer side of the corresponding cable protection heat shrinkage layer 2, so that the cable protection heat shrinkage layer 2 can form better second-layer protection on the fiber infiltration curing section 5 of the cable body 1, and the waterproof performance of a waterproof part is further improved.
In some embodiments of the cable waterproofing assembly, the heat shrink material comprises a heat shrink tube or a glue-containing heat shrink tube.
The heat shrinkage pipe or the heat shrinkage pipe containing the glue has good wrapping property after heat shrinkage, is not easy to damage, and is favorable for maintaining the waterproof performance of the waterproof part
In some embodiments of the cable waterproofing assembly, the protective liquid comprises a modified alkyd resin tri-proof paint.
The modified alkyd resin three-proofing paint has excellent insulating and corrosion resistance, strong adhesive force, good insulativity, ultraviolet resistance, weather aging resistance, impact resistance, moisture, dust resistance, corrosion resistance and excellent high and low temperature resistance. Therefore, the waterproof performance of the waterproof part is favorably maintained.
The embodiment provides a manufacturing method of a cable waterproof assembly according to the embodiment of the application, which comprises the steps of forming a cable body 1 and forming a cable protection heat shrinkage layer 2.
In the step of forming the cable body 1, the cable to be treated is treated as the cable body 1. The cable to be treated comprises a conductive core wire 13, an insulating layer 12 sleeved on the periphery of the conductive core wire 13 and a fiber woven layer sleeved on the periphery of the insulating layer 12. The step of forming the cable body 1 comprises the steps of impregnating the fiber woven layer of the position, where the cable needs to be waterproof, with a protective liquid, then curing the fiber woven layer to form a fiber impregnated cured section 5, and forming fiber woven structural sections connected with the fiber impregnated cured section 5 along the axial direction of the cable by the rest of the fiber woven layer to form the cable outer protective layer 11.
In the step of forming the cable protection heat-shrinkable layer 2, the cable protection heat-shrinkable layer is formed by heat-shrinking a heat-shrinkable material covered on the periphery of the fiber infiltration curing section 5.
The manufacturing method of the cable waterproof assembly has the advantages of the cable waterproof assembly.
In the method of manufacturing the cable waterproof assembly of some embodiments, the step of forming the cable body 1 includes: and after the protective liquid is uniformly coated or dip-coated on the fiber woven layer of the position, which needs to be waterproof, of the cable to be treated, the fiber woven layer is soaked by the protective liquid, and then the fiber soaked curing section 5 and the fiber woven structure section of the outer protective layer are formed by curing.
The fiber woven layer of the waterproof part can be well covered and fully soaked by the protective liquid in a brushing or dip-coating mode, so that the waterproof performance of the fiber soaked curing section 5 is good.
In the method of manufacturing the cable waterproof assembly of some embodiments, the step of forming the cable body 1 includes: processing more than two cables to be processed into more than two cable bodies 1, and enabling more than two outer protective layers of the more than two cable bodies 1 to comprise more than two fiber infiltration curing sections 5 which are at least partially overlapped along the axial direction of the cable bodies 1; the step of forming the cable protective heat shrink layer 2 comprises: the heat-shrinkable material covering more than two fiber-impregnated cured sections 5 is heat-shrunk so that the same cable protective heat-shrinkable layer 2 is arranged on the peripheries of more than two fiber-impregnated cured sections 5. Optionally, the cable protective heat shrink layer 2 is disposed at least at the outer periphery of the overlapping portion of the two or more fiber-wetting cured sections 5.
The manufacturing method ensures that the cable waterproof assembly comprises more than two cable bodies 1 and the same cable protection heat shrinkage layer 2, and is beneficial to simultaneously performing waterproof treatment on the waterproof parts of the more than two cable bodies 1.
In some embodiments of the method of manufacturing a cable waterproofing assembly, the step of forming the cable protective heat shrink layer 2 comprises: covering the peripheries of more than two fiber infiltration curing sections 5 with a heat shrinkage material for forming the cable protection heat shrinkage layer 2, enabling the peripheries of the cable protection heat shrinkage layer 2 formed by heat shrinkage of the heat shrinkage material and the more than two fiber infiltration curing sections 5 to be provided with an accommodating space C and enabling the end part of the cable protection heat shrinkage layer 2 to be provided with an injection opening J communicated with the accommodating space C; and
The manufacturing method further includes a step of forming the cured filling portion 7, including injecting a shielding liquid into the injection port J, and waiting for the shielding liquid to cure after the shielding liquid fills the accommodating space C to form the cured filling portion 7.
The manufacturing method forms the curing filling part 7, which is beneficial to preventing the cable protection heat shrinkage layer 2 from being tightly wrapped at the gap between the two or more fiber infiltration curing sections 5 during heat shrinkage, thereby having better waterproof performance after the waterproof treatment of the waterproof parts of the two or more cable bodies 1.
In the method of manufacturing the cable waterproof assembly of some embodiments, the step of forming the cable body 1 includes: the conductive core wire 13 and the insulating layer 12 at the first end of the cable body 1 are positioned outside the fiber infiltration curing section 5 along the axial direction of the cable body 1; the step of forming the cable protective heat shrink layer 2 comprises: the injection port J is located between the cable protection heat shrinkage layer 2 and the insulating layer 12 of the cable body 1, so that the injection port J and one end of the fiber infiltration curing section 5, which is close to the injection port J, have a gap G along the axial direction of the cable body 1.
The gap G is arranged between the injection opening J and one end, close to the injection opening J, of the fiber infiltration curing section 5 along the axial direction of the cable body 1, so that the containing space C is filled with protective liquid, and the end, on one side of the injection opening J, of the fiber infiltration curing section 5 is further protected, so that the waterproof performance of the waterproof part after waterproof treatment is better.
In some embodiments of the method of manufacturing a cable waterproofing assembly, the spacing G is 5mm to 10mm.
The size of the interval G is reasonably selected, so that the use amount of the protective liquid and the heat shrinkage material is saved on the basis that the protective liquid is beneficial to filling the accommodating space C and the end part of one side of the injection opening J of the fiber infiltration curing section 5 is further protected.
In the method of manufacturing the waterproof cable assembly of some embodiments, the method of manufacturing further includes a step of connecting the terminals 4 and a step of forming the terminal-protecting heat-shrinkable layer 3. The step of connecting the terminal 4 includes: the terminal 4 is connected to the conductive core wire 13 at the first end of the cable body 1. The step of forming the terminal protection heat shrink layer 3 includes: the terminal protection heat shrinkable layer 3 is heat-shrinkable by a heat shrinkable material covering the outer periphery of at least a part of the terminal 4.
The manufacturing method further comprises the step of connecting the terminal 4 and the step of forming the terminal protection heat shrinkage layer 3, so that the joint of the terminal 4 and the cable can be subjected to waterproof treatment, and the waterproof performance of the joint can be improved.
In the method of manufacturing the cable waterproof assembly of some embodiments, the step of forming the cable body 1 includes: the first end of the cable body 1 is made to include a fiber impregnated cured section 5 and a cable protective heat shrink layer 2. The step of forming the terminal protection heat shrink layer 3 includes: the terminal protection heat shrinkage layer 3 and the cable protection heat shrinkage layer 2 are integrally formed; or one end of the terminal-protecting heat-shrinkable layer 3 is located at the outer periphery of the cable-protecting heat-shrinkable layer 2.
The terminal protection heat shrinkage layer 3 and the cable protection heat shrinkage layer 2 are integrally formed, or one end of the terminal protection heat shrinkage layer 3 is positioned at the periphery of the cable protection heat shrinkage layer 2, so that the waterproof performance of the joint of the terminal 4 and the cable is improved.
In the method of manufacturing the cable waterproof assembly of some embodiments, the step of forming the cable body 1 includes: the conductive core wire 13 and the insulating layer 12 at the first end of the cable body 1 are positioned outside the fiber infiltration curing section 5 along the axial direction of the cable body 1; the method of manufacture further comprises the step of forming a shielding liquid solidifying section 6. The step of forming the shielding liquid solidifying section 6 includes: the shielding liquid is solidified to form a shielding liquid solidified section 6 by covering at least a part of the periphery of the terminal 4 and the periphery of the insulating layer 12 of the cable body 1 near one end of the terminal 4, and one end of the cable shielding heat shrinkage layer 2 near the terminal 4 is wrapped on the periphery of the shielding liquid solidified section 6. The step of forming the terminal protection shrink layer 3 includes: the terminal protection heat-shrinkable layer 3 is formed by heat shrinkage of a heat-shrinkable material covered on the protection liquid curing section 6, or the terminal protection heat-shrinkable layer 3 is formed by heat shrinkage of a heat-shrinkable material covered on one end, close to the terminal 4, of the protection liquid curing section 6 and the cable protection heat-shrinkable layer 2.
The arrangement of the protective liquid curing section 6 is beneficial to further improving the waterproof performance of the joint of the terminal 4 and the cable.
Embodiments of the present application are further described below in conjunction with fig. 1-8.
Fig. 1 to 2 show a schematic structural view of a cable waterproof assembly according to an embodiment of the present application. In this embodiment, the cable waterproof assembly includes a cable body 1 and a cable protection heat shrinkage layer 2.
The cable body 1 comprises a conductive core wire 13, an insulating layer 12 sleeved on the periphery of the conductive core wire 13 and a cable outer protective layer 11 sleeved on the periphery of the insulating layer 12.
The cable outer shield 11 comprises a fiber woven structure section and a fiber impregnated cured section 5 connected in the axial direction of the cable body 1. The fiber braid structural segments are formed from fiber braids. The fiber infiltration curing section 5 is formed by curing after the protective liquid infiltrates the fiber woven layer.
The heat-shrinkable material comprises a heat-shrinkable tube or a heat-shrinkable tube containing glue. The protective liquid comprises modified alkyd resin three-proofing paint. In this example, SINEE 146 three-proofing paint is used.
The cable waterproof assembly of the embodiment is suitable for the situation that the part of the single fiber woven outer protective layer cable penetrating through the structural body needs to be waterproof.
The implementation steps of the manufacturing method of the cable waterproof assembly of the embodiment are described as follows:
A step of forming the cable body 1. The step of forming the cable body 1 comprises:
the cable to be treated is prepared. The cable to be treated comprises a conductive core wire 13, an insulating layer 12 sleeved on the periphery of the conductive core wire 13 and a fiber woven layer sleeved on the periphery of the insulating layer 12.
And uniformly smearing SINEE 146 three-proofing paint serving as protective liquid on the part of the cable to be treated, which is matched with the structural body, in a brushing manner. So that the protective liquid is uniformly soaked on the fiber woven layer of the smeared part. Or dipping the part of the cable to be treated, which is matched with the structural body, into the protective liquid by adopting a dip-coating method, so that after the fiber braid layer of the part, which is matched with the structural body, is soaked in the protective liquid, the cable to be treated, which is dipped with the protective liquid, is lifted, and the redundant protective liquid on the surface of the cable to be treated naturally flows away.
Waiting for the protective liquid to solidify. For example, using SINEE 146 three-proofing lacquer as a protective liquid requires about 24 hours of curing time. After the protective liquid is solidified, the protective section of the fiber woven layer coated or dip-coated with the protective liquid forms a fiber infiltration solidifying section 5, and the protective section of the fiber woven layer which is not coated or dip-coated with the protective liquid forms a fiber woven structure section. The fiber braid of the cable to be treated thus forms the cable outer shielding 11 of the cable body 1, and the cable to be treated forms the cable body 1.
And forming the cable protection heat shrinkage layer 2. Comprising the following steps:
and sleeving a heat-shrinkable tube containing glue, which is used as a heat-shrinkable material, on the cable body 1, so that the heat-shrinkable tube containing glue covers the periphery of the fiber infiltration curing section 5.
The glue-containing heat-shrinkable tube is shrunk in a hot air heating mode, so that the cable body 1 is firmly wrapped, and the cable protection heat-shrinkable layer 2 is formed.
Fig. 3 to 5 show schematic structural views of a cable waterproof assembly according to an embodiment of the present application. In this embodiment, the cable waterproof assembly includes a single cable body 1, a cable protection heat shrink layer 2, a terminal 4, a protection liquid curing section 6, and a terminal protection heat shrink layer 3.
The cable body 1 comprises a conductive core wire 13, an insulating layer 12 sleeved on the periphery of the conductive core wire 13 and a cable outer protective layer 11 sleeved on the periphery of the insulating layer 12.
The cable outer shield 11 comprises a fiber woven structure section and a fiber impregnated cured section 5 connected in the axial direction of the cable body 1. The fiber braid structural segments are formed from fiber braids. The fiber infiltration curing section 5 is formed by curing after the protective liquid infiltrates the fiber woven layer. As shown in fig. 3 to 5, the first end of the cable body 1 (the left end of the cable body 1 in fig. 3 to 5) includes a fiber-wetting cured section 5 and a cable protective heat shrink layer 2. The conductive core wire 13 and the insulating layer 12 at the first end of the cable body 1 are located outside the fiber-impregnated cured section 5 in the axial direction of the cable body 1.
The heat-shrinkable material comprises a heat-shrinkable tube or a heat-shrinkable tube containing glue. The protective liquid comprises modified alkyd resin three-proofing paint. In this example, SINEE 146 three-proofing paint is used.
The terminal 4 is connected to the conductive core wire 13 at the first end of the cable body 1.
The shielding liquid curing section 6 is formed by curing a shielding liquid covering the outer periphery of at least a part of the terminal 4 (the outer periphery of the right end of the terminal 4 in the drawing) and the outer periphery of the insulating layer 12 of the cable body 1 near the end of the terminal 4. In this embodiment, the diameter of the terminal 4 is different from that of the insulating layer 12, and the diameter of the terminal 4 is larger than that of the insulating layer 12. Suitably, the shielding liquid solidifying section 6 includes two portions having different diameters, and further includes a step portion connecting the two portions having different diameters.
The terminal protection heat shrinkage layer 3 is formed by heat shrinkage of a heat shrinkage material covering the protection liquid curing section 6 and one end, close to the terminal 4, of the cable protection heat shrinkage layer 2. One end of the terminal protection heat shrink layer 3 (the right end of the terminal protection heat shrink layer 3 in fig. 3 to 5) is located at the outer periphery of the cable protection heat shrink layer 2.
The cable waterproof assembly of the embodiment is suitable for the situation that the newly connected part needs to be waterproof when the single fiber braided outer protective layer cable is connected with the terminal 4.
The implementation steps of the manufacturing method of the cable waterproof assembly of the embodiment are described as follows:
And connecting the terminals 4. The step of connecting the terminal 4 comprises connecting the terminal 4 with the conductive core wire 13 of the first end of the cable body 1. The connection terminal 4 and the conductive core wire 13 may be a connection between the terminal 4 and the cable to be processed, or a connection between the terminal 4 and the cable body 1 formed by processing the cable to be processed.
A step of forming the cable body 1, and a step of forming the shielding liquid curing section 6 simultaneously. The method comprises the following steps:
the cable to be treated is prepared. The cable to be treated comprises a conductive core wire 13, an insulating layer 12 sleeved on the periphery of the conductive core wire 13 and a fiber woven layer sleeved on the periphery of the insulating layer 12. The conductive core wire 13 and the insulating layer 12 at the first end of the cable body 1 are located outside the fiber-impregnated cured section 5 in the axial direction of the cable body 1.
The SINEE 146 three-proofing paint serving as protective liquid is uniformly coated on the periphery of the fiber braid of the cable to be treated, which is close to the first end, the periphery of the insulating layer 12 between the fiber braid and the terminal 4 and the periphery of one end of the terminal 4, which is close to the cable body 1, in a brushing manner. The protective liquid is uniformly impregnated into the fiber braid of the coated part and the outer periphery of the insulating layer 12 covering between the fiber braid and the terminal 4 and the outer periphery of the terminal 4 at the end near the cable body 1. Or dipping the outer periphery of the fiber braid of the cable to be treated, which is close to the first end, the outer periphery of the insulating layer 12 between the fiber braid and the terminal 4, and the outer periphery of the terminal 4, which is close to the end of the cable body 1, are immersed in the protective liquid, and after the fiber braid immersed in the protective liquid is immersed in the protective liquid, the cable to be treated and the terminal 4 which are immersed in the protective liquid are lifted up, so that redundant protective liquid on the surface of the cable to be treated and the surface of the terminal 4 naturally flows away.
Waiting for the protective liquid to solidify. For example, using SINEE 146 three-proofing lacquer as a protective liquid requires about 24 hours of curing time. After the protective liquid is solidified, the protective section of the fiber woven layer coated or dip-coated with the protective liquid forms a fiber infiltration solidifying section 5, and the protective section of the fiber woven layer which is not coated or dip-coated with the protective liquid forms a fiber woven structure section. The fiber braid of the cable to be treated thus forms the cable outer shielding 11 of the cable body 1, and the cable to be treated forms the cable body 1. At the same time, the shielding liquid covering the outer periphery of the insulating layer 12 between the fiber braid and the terminal 4 and the outer periphery of the end of the terminal 4 near the cable body 1 is cured to form the shielding liquid curing section 6.
And forming the cable protection heat shrinkage layer 2. Comprising the following steps:
the cable body 1 is sleeved with a heat shrinkage pipe containing glue, and the heat shrinkage pipe containing glue is covered on the periphery of the fiber infiltration curing section 5 and the part of the shielding liquid curing section 6, which is positioned on the periphery of the insulating layer 12.
The glue-containing heat-shrinkable tube is shrunk in a hot air heating mode, so that the cable body 1 is firmly wrapped, and the cable protection heat-shrinkable layer 2 is formed.
And forming a terminal protection heat shrinkage layer 3. Comprising the following steps:
and a heat shrinkage pipe containing glue is sleeved outside the protection liquid curing section 6 and used as a heat shrinkage material, so that the part of the protection liquid curing section 6 of the terminal 4 and the part of the cable protection heat shrinkage layer 2 close to the terminal 4 are covered with the heat shrinkage pipe containing glue.
The glue-containing heat-shrinkable tube is shrunk by adopting a hot air heating mode, so that the periphery of the part of the protection liquid curing section 6 of the terminal 4 and the periphery of the part of the cable protection heat-shrinkable layer 2, which is close to the terminal 4, are firmly wrapped, and the terminal protection heat-shrinkable layer 3 is formed.
In an alternative embodiment of the present embodiment, the shielding liquid curing section 6 is not necessary, and the terminal shielding heat shrink layer 3 may be directly formed on the outer periphery of the portion of the terminal 4 close to the cable body 1 and the outer periphery of the portion of the cable shielding heat shrink layer 2 close to the terminal 4.
Fig. 6 to 8 show schematic structural views of a cable waterproof assembly according to an embodiment of the present application. In this embodiment, the cable waterproof assembly includes two cable bodies 1 and the same cable protection heat shrinkage layer 2 disposed on the outer peripheries of the two cable bodies 1, and includes a curing filler 7 disposed between the outer peripheries of the two cable bodies 1 and the cable protection heat shrinkage layer 2.
Of the two cable bodies 1, each cable body 1 includes a conductive core wire 13, an insulating layer 12 sleeved on the outer periphery of the conductive core wire 13, and a cable outer shield layer 11 sleeved on the outer periphery of the insulating layer 12.
The cable outer shield 11 of each cable body 1 comprises a fiber woven structure section and a fiber impregnated cured section 5 connected in the axial direction of the cable body 1. The fiber braid structural segments are formed from fiber braids. The fiber infiltration curing section 5 is formed by curing after the protective liquid infiltrates the fiber woven layer.
The heat-shrinkable material comprises a heat-shrinkable tube or a heat-shrinkable tube containing glue. The protective liquid comprises modified alkyd resin three-proofing paint. In this example, SINEE 146 three-proofing paint is used.
The two cable outer protection layers 11 of the two cable bodies 1 comprise two fiber-impregnated cured sections 5 which are at least partially overlapped along the axial direction of the cable body 1, and the same cable protection heat shrinkage layer 2 is correspondingly wrapped on the peripheries of the two fiber-impregnated cured sections 5. In this embodiment, the axial positions of the two fiber infiltration curing sections 5 are substantially the same.
The curing filling part 7 is positioned between the two fiber infiltration curing sections 5 and the corresponding same cable protection heat shrinkage layer 2 and is formed by curing protective liquid filled between the two fiber infiltration curing sections 5 and the cable protection heat shrinkage layer 2.
The cable waterproof assembly of the embodiment is suitable for the situation that the part of the two fiber woven outer protective layer cables penetrating through the structural body needs to be waterproof.
The implementation steps of the manufacturing method of the cable waterproof assembly of the embodiment are described as follows:
a step of forming the cable body 1. The step of forming the cable body 1 comprises:
two cables to be treated are prepared. The cable to be treated comprises a conductive core wire 13, an insulating layer 12 sleeved on the periphery of the conductive core wire 13 and a fiber woven layer sleeved on the periphery of the insulating layer 12.
And uniformly smearing SINEE 146 three-proofing paint serving as protective liquid on the part of the cable to be treated, which is matched with the structural body, in a brushing manner. So that the protective liquid is uniformly soaked on the fiber woven layer of the smeared part. Or dipping the part of the cable to be treated, which is matched with the structural body, into the protective liquid by adopting a dip-coating method, so that after the fiber braid layer of the part, which is matched with the structural body, is soaked in the protective liquid, the cable to be treated, which is dipped with the protective liquid, is lifted, and the redundant protective liquid on the surface of the cable to be treated naturally flows away.
Waiting for the protective liquid to solidify. For example, using SINEE 146 three-proofing lacquer as a protective liquid requires about 24 hours of curing time. After the protective liquid is solidified, the protective section of the fiber woven layer coated or dip-coated with the protective liquid forms a fiber infiltration solidifying section 5, and the protective section of the fiber woven layer which is not coated or dip-coated with the protective liquid forms a fiber woven structure section. The fiber braid of the cable to be treated thus forms the cable outer shielding 11 of the cable body 1, and the cable to be treated forms the cable body 1.
And forming the cable protection heat shrinkage layer 2. Comprising the following steps:
the two cables are gathered, and the two cable bodies 1 are sleeved with the heat shrinkage pipe containing the heat shrinkage material, so that the heat shrinkage pipe containing the heat shrinkage pipe covers the peripheries of the two fiber infiltration curing sections 5.
The glue-containing heat-shrinkable tube is shrunk in a hot air heating mode, so that the fiber infiltration curing sections 5 of the two cable bodies 1 are firmly wrapped, and the cable protection heat-shrinkable layer 2 is formed. Meanwhile, an accommodating space C is formed between the cable protection heat shrinkage layer 2 and the two fiber infiltration curing sections 5, and an injection port J communicated with the accommodating space C is formed at the end part of the cable protection heat shrinkage layer 2, as shown in fig. 6 and 7.
And forming a curing filling part 7. Comprising the following steps:
SINEE 146 three-proofing paint serving as protective liquid is injected into the accommodating space C through the injection opening J, so that the protective liquid fills the accommodating space C.
Waiting for the shielding liquid injected into the accommodation space C to solidify. For example, using SINEE 146 three-proofing lacquer as a protective liquid requires about 24 hours of curing time. After the protective liquid injected into the accommodating space C is cured, a curing filling part 7 is formed between the fiber infiltration curing sections 5 of the two cable bodies 1 and the cable protective heat shrinkage layer 2, as shown in fig. 8, so that the two cable bodies 1 form a tight waterproof structure at the cable protective heat shrinkage layer 2.
In some embodiments, not shown, it is also possible to connect more than two cable bodies 1 with the terminals 4 and form a tight waterproof structure at the connection. The cable waterproof assembly of the present embodiment will be described by taking the example in which two cable bodies 1 are connected by the same terminal 4.
In this embodiment, the cable waterproof assembly includes terminal 4, two cable bodies 1, set up at the same cable protection heat shrinkage layer 2 of two cable body 1 periphery, set up the solidification filling part 7 between two cable body 1 periphery and cable protection heat shrinkage layer 2, set up the protection liquid curing section 6 at terminal 4 and the insulating layer 12 periphery of cable body 1, and set up the terminal protection heat shrinkage layer 3 of the one end of protection liquid curing section 6 outside and cable protection heat shrinkage layer 2.
Of the two cable bodies 1, each cable body 1 includes a conductive core wire 13, an insulating layer 12 sleeved on the outer periphery of the conductive core wire 13, and a cable outer shield layer 11 sleeved on the outer periphery of the insulating layer 12.
The cable outer shield 11 of each cable body 1 comprises a fiber woven structure section and a fiber impregnated cured section 5 connected in the axial direction of the cable body 1. The fiber braid structural segments are formed from fiber braids. The fiber infiltration curing section 5 is formed by curing after the protective liquid infiltrates the fiber woven layer.
The heat-shrinkable material comprises a heat-shrinkable tube or a heat-shrinkable tube containing glue. The protective liquid comprises modified alkyd resin three-proofing paint. In this example, SINEE 146 three-proofing paint is used.
The two cable outer protection layers 11 of the two cable bodies 1 comprise two fiber-impregnated cured sections 5 which are at least partially overlapped along the axial direction of the cable body 1, and the same cable protection heat shrinkage layer 2 is correspondingly wrapped on the peripheries of the two fiber-impregnated cured sections 5. In this embodiment, the axial positions of the two fiber infiltration curing sections 5 are substantially the same and are both located at the first end of the cable body 1. The conductive core wire 13 and the insulating layer 12 at the first end of the cable body 1 are located outside the fiber-impregnated cured section 5 in the axial direction of the cable body 1. The terminals 4 are connected to first ends of two conductive cores 13 of the two cable bodies 1.
The curing filling part 7 is positioned between the two fiber infiltration curing sections 5 and the corresponding same cable protection heat shrinkage layer 2 and is formed by curing protective liquid filled between the two fiber infiltration curing sections 5 and the cable protection heat shrinkage layer 2.
The shielding liquid curing section 6 is formed by curing a shielding liquid covering the outer periphery of the right end of the terminal 4 in the outer periphery view of at least a part of the terminal 4 and the outer periphery of the insulating layer 12 of the cable body 1 near the end of the terminal 4. In this embodiment, the diameter of the terminal 4 is different from that of the insulating layer 12, and the diameter of the terminal 4 is larger than that of the insulating layer 12. Suitably, the shielding liquid solidifying section 6 includes two portions having different diameters, and further includes a step portion connecting the two portions having different diameters.
The terminal protection heat shrinkage layer 3 is formed by heat shrinkage of a heat shrinkage material covering the protection liquid curing section 6 and one end, close to the terminal 4, of the cable protection heat shrinkage layer 2. One end of the terminal protection heat shrink layer 3 (the right end of the terminal protection heat shrink layer 3 in fig. 3 to 5) is located at the outer periphery of the cable protection heat shrink layer 2.
The cable waterproof assembly of this embodiment is applicable to the condition that the junction needs waterproof when terminal 4 is woven outer inoxidizing coating cable with two fibres and is connected.
The implementation steps of the manufacturing method of the cable waterproof assembly of the embodiment are described as follows:
And connecting the terminals 4. The step of connecting the terminals 4 comprises connecting the terminals 4 with the conductive cores 13 of the first ends of the two cable bodies 1. The connection terminal 4 and the conductive core wire 13 may be a connection between the terminal 4 and the cable to be processed, or a connection between the terminal 4 and the cable body 1 formed by processing the cable to be processed.
A step of forming the cable body 1. The step of forming the cable body 1 comprises:
two cables to be treated are prepared. The cable to be treated comprises a conductive core wire 13, an insulating layer 12 sleeved on the periphery of the conductive core wire 13 and a fiber woven layer sleeved on the periphery of the insulating layer 12.
And uniformly smearing SINEE 146 three-proofing paint serving as protective liquid on the part of the cable to be treated, which is matched with the structural body, in a brushing manner. So that the protective liquid is uniformly soaked on the fiber woven layer of the smeared part. Or dipping the part of the cable to be treated, which is matched with the structural body, into the protective liquid by adopting a dip-coating method, so that after the fiber braid layer of the part, which is matched with the structural body, is soaked in the protective liquid, the cable to be treated, which is dipped with the protective liquid, is lifted, and the redundant protective liquid on the surface of the cable to be treated naturally flows away.
Waiting for the protective liquid to solidify. For example, using SINEE 146 three-proofing lacquer as a protective liquid requires about 24 hours of curing time. After the protective liquid is solidified, the protective section of the fiber woven layer coated or dip-coated with the protective liquid forms a fiber infiltration solidifying section 5, and the protective section of the fiber woven layer which is not coated or dip-coated with the protective liquid forms a fiber woven structure section. The fiber braid of the cable to be treated thus forms the cable outer shielding 11 of the cable body 1, and the cable to be treated forms the cable body 1.
And forming the cable protection heat shrinkage layer 2. Comprising the following steps:
two cables are gathered together, and the two cable bodies 1 are sleeved with the heat-shrinkable tube containing glue, which is used as a heat-shrinkable material, so that the periphery of the two fiber infiltration curing sections 5 is covered by the heat-shrinkable tube containing glue, and one end, close to the terminal 4, of the heat-shrinkable tube containing glue is closer to the terminal 4 than one end, close to the terminal 4, of the two fiber infiltration curing sections 5.
The glue-containing heat-shrinkable tube is shrunk in a hot air heating mode, so that the fiber infiltration curing sections 5 of the two cable bodies 1 are firmly wrapped, and the cable protection heat-shrinkable layer 2 is formed. Meanwhile, an accommodating space C is formed between the cable protection heat shrinkage layer 2 and the two fiber infiltration curing sections 5, and an injection port J communicated with the accommodating space C is formed at the end part of the cable protection heat shrinkage layer 2. The injection port J is located between the cable protection heat shrinkage layer 2 and the insulating layer 12 of the cable body 1, so that the injection port J and one end of the fiber infiltration curing section 5, which is close to the injection port J, have a gap G along the axial direction of the cable body 1. The interval G may be, for example, 5mm to 10mm.
A step of forming the curing filling portion 7 and a step of forming the shielding liquid curing section 6 simultaneously. Comprising the following steps:
SINEE 146 three-proofing paint serving as protective liquid is injected into the accommodating space C through the injection opening J, so that the protective liquid fills the accommodating space C. The outer circumference of the portion of the terminal 4 near the cable body 1 and the outer circumference of the insulating layer 12 between the terminal 4 of the cable body 1 and the cable protection heat shrinkage layer 2 are coated with a three-proofing lacquer of SINWE146 as a protection liquid.
Waiting for the shielding liquid injected into the accommodation space C to solidify. For example, using SINEE 146 three-proofing lacquer as a protective liquid requires about 24 hours of curing time. After the protective liquid injected into the accommodating space C is cured, a curing filling part 7 is formed between the fiber infiltration curing sections 5 of the two cable bodies 1 and the cable protective heat shrinkage layer 2, and after the protective liquid coated on the periphery of the part of the terminal 4, which is close to the cable body 1, and the periphery of the insulating layer 12 between the terminal 4 of the cable body 1 and the cable protective heat shrinkage layer 2 is cured, a protective liquid curing section 6 is formed.
And forming a terminal protection heat shrinkage layer 3. Comprising the following steps:
and a heat shrinkage pipe containing glue is sleeved outside the protection liquid curing section 6 and used as a heat shrinkage material, so that the part of the periphery of the protection liquid curing section 6 of the terminal 4 and the part of the cable protection heat shrinkage layer 2 close to the terminal 4 are covered with the heat shrinkage pipe containing glue, namely the injection opening J is covered.
The glue-containing heat-shrinkable tube is shrunk by adopting a hot air heating mode, so that the periphery of the part of the protection liquid curing section 6 of the terminal 4 and the periphery of the part of the cable protection heat-shrinkable layer 2, which is close to the terminal 4, are firmly wrapped, and the terminal protection heat-shrinkable layer 3 is formed.
In an alternative embodiment of the present embodiment, the shielding liquid curing section 6 is not necessary, and the terminal shielding heat shrink layer 3 may be directly formed on the outer periphery of the portion of the terminal 4 close to the cable body 1 and the outer periphery of the portion of the cable shielding heat shrink layer 2 close to the terminal 4.
As apparent from the above description, the present application relates to a waterproof assembly for a cable and a method of manufacturing the same for waterproof of a fiber woven outer shield cable having a fiber woven layer as an outer shield. The fiber woven outer protective layer cable is applied to an environment which has requirements on flexibility and abrasion resistance of the cable and also has requirements on being capable of bearing certain tensile force.
According to the cable waterproof assembly and the manufacturing method of the cable waterproof assembly, the waterproof part of the cable to be subjected to waterproof treatment is fully soaked and filled with the protective liquid which is liquid before solidification, so that moisture is prevented from entering the cable from the fiber woven layer, capillary action of the inside of the fiber woven layer to the moisture is blocked, after the protective liquid is solidified, the waterproof part is subjected to heat shrinkage wrapping by using a heat shrinkage material such as a heat shrinkage pipe or a heat shrinkage pipe containing glue, and second protection is provided. Under the double protection of the protective liquid and the heat shrinking pipe containing the glue, the waterproof part of the fiber woven outer protective layer cable can be well waterproof.
It will be appreciated by those skilled in the art that in the above-described method of the specific embodiment, the written order of steps is not meant to imply a strict order of execution but rather should be construed according to the function and possibly inherent logic of the steps.
The foregoing description of various embodiments is intended to highlight differences between the various embodiments, which are the same or similar and are referred to each other for brevity and are not repeated herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same; although the present application has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will appreciate that: modifications may be made to the specific embodiments of the present application or equivalents may be substituted for part of the technical features, which are all included in the scope of the technical solutions claimed herein.

Claims (18)

1. A cable waterproofing assembly, comprising:
the cable body (1) comprises a conductive core wire (13), an insulating layer (12) sleeved on the periphery of the conductive core wire (13) and a cable outer protective layer (11) sleeved on the periphery of the insulating layer (12), wherein the cable outer protective layer (11) comprises a fiber woven structure section and a fiber infiltration curing section (5) which are connected along the axial direction of the cable body (1), the fiber woven structure section is formed by a fiber woven layer, and the fiber infiltration curing section (5) is formed by curing after the protective liquid infiltrates the fiber woven layer; and
The cable protection heat shrinkage layer (2) is correspondingly arranged with the fiber infiltration curing section (5), and the cable protection heat shrinkage layer (2) is wrapped on the periphery of the corresponding fiber infiltration curing section (5) and is formed by heat shrinkage of a heat shrinkage material covered on the periphery of the fiber infiltration curing section (5).
2. The cable waterproof assembly according to claim 1, characterized by comprising two or more cable bodies (1), wherein two or more cable outer protective layers (11) of the two or more cable bodies (1) comprise two or more fiber-impregnated cured sections (5) which at least partially overlap along the axial direction of the cable body (1), and the same cable protective heat shrink layer (2) is correspondingly wrapped around the peripheries of the two or more fiber-impregnated cured sections (5).
3. The cable waterproofing assembly according to claim 2 further comprising a curing filler (7), the curing filler (7) being located between the two or more fiber impregnated curing sections (5) and the corresponding same cable protective heat shrink layer (2), the curing filler (7) being formed by curing a protective liquid filled between the two or more fiber impregnated curing sections (5) and the cable protective heat shrink layer (2).
4. The cable flashing assembly of any of claims 1-3, further comprising:
-a terminal (4), said terminal (4) being connected to said conductive core wire (13) of the first end of said cable body (1); and
and a terminal protection heat shrinkage layer (3) formed by heat shrinkage of a heat shrinkage material covering the outer periphery of at least a part of the terminal (4).
5. The cable waterproofing assembly according to claim 4 wherein the first end of the cable body (1) comprises the fiber impregnated cured section (5) and the cable protective heat shrink layer (2); wherein the method comprises the steps of
The terminal protection heat shrinkage layer (3) and the cable protection heat shrinkage layer (2) are integrally formed; or (b)
One end of the terminal protection heat shrinkage layer (3) is positioned at the periphery of the cable protection heat shrinkage layer (2).
6. The cable flashing assembly of claim 5, wherein the cable flashing assembly comprises,
the conductive core wire (13) and the insulating layer (12) at the first end of the cable body (1) are positioned outside the fiber infiltration curing section (5) along the axial direction of the cable body (1);
the cable waterproof assembly further comprises a protective liquid curing section (6), wherein the protective liquid curing section (6) is formed by curing protective liquid covering the periphery of at least one part of the terminal (4) and the periphery of the insulating layer (12) of the cable body (1) close to one end of the terminal (4);
One end, close to the terminal (4), of the cable protection heat shrinkage layer (2) is wrapped on the periphery of the protection liquid curing section (6);
the terminal protection heat shrinkage layer (3) is formed by heat shrinkage of a heat shrinkage material covered on the protection liquid curing section (6) or heat shrinkage of a heat shrinkage material covered on one end, close to the terminal (4), of the protection liquid curing section (6) and the cable protection heat shrinkage layer (2).
7. The cable waterproofing assembly according to any one of claims 1 to 6 wherein at least one end of the fiber impregnated cured section (5) is located outside the corresponding cable protective heat shrink layer (2) along the axial direction of the cable body (1).
8. The electrical cable waterproofing assembly according to any one of claims 1 to 6 wherein the heat shrink material comprises a heat shrink tube or a glue-containing heat shrink tube.
9. The cable flashing assembly of any of claims 1-6, wherein the protective liquid comprises a modified alkyd three-way paint.
10. A method of manufacturing a cable waterproofing assembly according to any one of claims 1 to 9, comprising:
a step of forming the cable body (1), wherein a cable to be treated is processed into the cable body (1), the cable to be treated comprises a conductive core wire (13), an insulating layer (12) sleeved on the periphery of the conductive core wire (13) and a fiber woven layer sleeved on the periphery of the insulating layer (12), the cable comprises a fiber woven layer which is soaked in a position of the cable to be waterproof by protective liquid and then is solidified to form a fiber soaking and solidifying section (5), and the other fiber woven layers form fiber woven structure sections connected with the fiber soaking and solidifying section (5) along the axial direction of the cable so as to form the outer protective layer; and
And forming a cable protection heat shrinkage layer (2) by heat shrinkage of a heat shrinkage material covered on the periphery of the fiber infiltration curing section (5).
11. The method of manufacturing a cable waterproofing assembly according to claim 10, characterized in that the step of forming the cable body (1) comprises uniformly brushing or dip-coating the protective liquid onto the fiber braid of the cable to be treated at the location where waterproofing is required, and waiting for the protective liquid to infiltrate the fiber braid and then curing the fiber impregnated cured section (5) and the fiber braided structure section forming the outer protective layer.
12. The method of manufacturing a waterproof cable assembly according to claim 11, wherein,
the step of forming the cable body (1) comprises: -processing two or more of said cables to be processed into two or more of said cable bodies (1), and-providing two or more of said outer protective layers of said two or more of said cable bodies (1) comprising two or more of said fiber impregnation curing sections (5) at least partially overlapping in the axial direction of said cable bodies (1);
the step of forming the cable protective heat shrink layer (2) comprises: and (3) enabling the heat-shrinkable material covering the more than two fiber infiltration curing sections (5) to be subjected to heat shrinkage so as to enable the same cable protection heat-shrinkable layer (2) to be arranged on the peripheries of the more than two fiber infiltration curing sections (5).
13. The method of manufacturing a waterproof cable assembly according to claim 12, wherein,
the step of forming the cable protective heat shrink layer (2) comprises: covering the peripheries of the two or more fiber-impregnated cured sections (5) with the heat-shrinkable material for forming the cable protection heat-shrinkable layer (2), enabling the peripheries of the cable protection heat-shrinkable layer (2) formed by heat shrinkage of the heat-shrinkable material and the two or more fiber-impregnated cured sections (5) to be provided with accommodating spaces (C), and enabling the end parts of the cable protection heat-shrinkable layer (2) to be provided with injection openings (J) communicated with the accommodating spaces (C); and
the manufacturing method further comprises a step of forming a curing filling part (7), wherein the step of injecting the protective liquid into the injection opening (J) and waiting for curing of the protective liquid after the protective liquid fills the accommodating space (C) to form the curing filling part (7).
14. The method of manufacturing a waterproof cable assembly according to claim 13, wherein,
the step of forming the cable body (1) comprises positioning the conductive core wire (13) and the insulating layer (12) of the first end of the cable body (1) outside the fiber-impregnated cured section (5) along the axial direction of the cable body (1);
the step of forming the cable protective heat shrink layer (2) comprises: the injection opening (J) is positioned between the cable protection heat shrinkage layer (2) and the insulating layer (12) of the cable body (1), so that one end, close to the injection opening (J), of the injection opening (J) and the fiber infiltration curing section (5) is provided with a gap (G) along the axial direction of the cable body (1).
15. The method of manufacturing a cable waterproofing assembly according to claim 14, wherein the spacing (G) is 5mm to 10mm.
16. The method of manufacturing a cable waterproofing assembly according to any one of claims 10 to 15, further comprising:
-a step of connecting a terminal (4) comprising connecting the terminal (4) with the conductive core wire (13) of the first end of the cable body (1); and
a step of forming a terminal protection heat shrink layer (3) comprising heat shrinking a heat shrink material covering an outer periphery of at least a portion of the terminal (4) to form the terminal protection heat shrink layer (3).
17. The cable flashing assembly of claim 16, wherein the cable is waterproof,
the step of forming the cable body (1) comprises providing a first end of the cable body (1) comprising the fiber infiltration curing section (5) and the cable protective heat shrink layer (2);
the step of forming a terminal protection heat shrink layer (3) includes integrally forming the terminal protection heat shrink layer (3) with the cable protection heat shrink layer (2); or one end of the terminal protection heat shrinkage layer (3) is positioned at the periphery of the cable protection heat shrinkage layer (2).
18. The cable flashing assembly of claim 17, wherein the cable flashing assembly comprises,
The step of forming the cable body (1) comprises positioning the conductive core wire (13) and the insulating layer (12) of the first end of the cable body (1) outside the fiber-impregnated cured section (5) along the axial direction of the cable body (1);
the manufacturing method further comprises a step of forming a shielding liquid curing section (6), wherein the step of forming the shielding liquid curing section (6) comprises the steps of forming the shielding liquid curing section (6) by shielding liquid covering the periphery of at least one part of the terminal (4) and the periphery of the insulating layer (12) of the cable body (1) close to one end of the terminal (4), and wrapping one end of the cable shielding heat shrinkage layer (2) close to the terminal (4) on the periphery of the shielding liquid curing section (6);
the step of forming the terminal protection shrink layer (3) comprises: and enabling the thermal shrinkage material covered on the protection liquid curing section (6) to be subjected to thermal shrinkage to form the terminal protection thermal shrinkage layer (3), or enabling the thermal shrinkage material covered on one end, close to the terminal (4), of the protection liquid curing section (6) and the cable protection thermal shrinkage layer (2) to be subjected to thermal shrinkage to form the terminal protection thermal shrinkage layer (3).
CN202311839858.2A 2023-12-28 2023-12-28 Waterproof cable assembly and manufacturing method thereof Pending CN117711684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311839858.2A CN117711684A (en) 2023-12-28 2023-12-28 Waterproof cable assembly and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311839858.2A CN117711684A (en) 2023-12-28 2023-12-28 Waterproof cable assembly and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN117711684A true CN117711684A (en) 2024-03-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311839858.2A Pending CN117711684A (en) 2023-12-28 2023-12-28 Waterproof cable assembly and manufacturing method thereof

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Country Link
CN (1) CN117711684A (en)

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