KR101806320B1 - Apparatus for waterproofing of electric cable - Google Patents

Apparatus for waterproofing of electric cable Download PDF

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Publication number
KR101806320B1
KR101806320B1 KR1020160006057A KR20160006057A KR101806320B1 KR 101806320 B1 KR101806320 B1 KR 101806320B1 KR 1020160006057 A KR1020160006057 A KR 1020160006057A KR 20160006057 A KR20160006057 A KR 20160006057A KR 101806320 B1 KR101806320 B1 KR 101806320B1
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KR
South Korea
Prior art keywords
core wires
cable
waterproofing
wire
wire cable
Prior art date
Application number
KR1020160006057A
Other languages
Korean (ko)
Other versions
KR20170086340A (en
Inventor
서성종
Original Assignee
주식회사 일진콤텍
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Priority to KR1020160006057A priority Critical patent/KR101806320B1/en
Publication of KR20170086340A publication Critical patent/KR20170086340A/en
Application granted granted Critical
Publication of KR101806320B1 publication Critical patent/KR101806320B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/0045—Cable-harnesses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable

Abstract

The present invention relates to a waterproofing device for a wire cable.
The present invention is characterized in that when a waterproofing means is inserted into an electric wire cable to which a connector for connecting an electronic device and an electronic device is coupled so as to prevent moisture from penetrating into the electric wire, And the wire cable are melted by inserting the wire and the plurality of core wires are fused so as to be watertightly sealed together with the plurality of core wires so as to be reinforced between the core wire of the wire cable and the plurality of core wires, It is possible to prevent an occurrence of disconnection between the outer shells of the cable.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a waterproof device for a cable,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a waterproofing device for a wire cable, and more particularly, to a waterproofing device for a wire cable, in which, when a hot melt is sealed to prevent short- And more particularly, to a waterproofing device for a wire cable, which can prevent disconnection due to a gap generated between a plurality of core wires protected by a hot melt and an outer shell of the wire cable.

Generally, when connecting various electronic devices or electronic devices, the cable is connected to one side and the other side by a wire cable having a connector. Here, the wire cable is coated with a plurality of core wires each covered with an insulator on the inside thereof, , The connector is detached from the outer surface of the wire cable and is coupled to the ends of a plurality of stripped core wires.

The plurality of core wires of the wire cable to which the connector is coupled are left in a state in which the portion not connected to the connector is long exposed, so that there is a large difference in strength between the connector and the wire cable not exposed. The wire is wrapped around the exposed plurality of cores with a separate tape or the tube is inserted to reinforce the strength to protect it from external force.

However, when the cable is used to connect to an electronic device or an electronic device installed in a room, it is not necessary to use it. However, it is connected to a security camera or signal lamp installed outside the vehicle, , Water caused by snow, rain, or moisture due to climate change flows along a plurality of exposed core wires to cause a short circuit into the interior of the cable or connector due to exposure to the external environment .

In order to solve the above problems, according to the Korean Patent Registration No. 10-1526179 (name, a waterproofing device for wires using a wire holder) (prior art), a plurality of electric wires Inserting a wire holder made of a thermoplastic hot-melt adhesive and inserted into a heat-shrinkable tube which is thermally welded to the outside of the wire holder and the plurality of wires outside the wire holder to melt the wire holder and the heat-shrinkable tube, The holder allows the enclosure to permeate between the plurality of electric wires from which the enclosure has been molten so that no space is formed between the plurality of electric wires, thereby preventing water from penetrating and preventing a shot due to moisture.

However, when the wire holder and the heat-shrinkable tube that enclose the plurality of wires are thermally welded to each other, the wire holder is inserted into only a part of a plurality of wires from which the sheath is detached, The molten wire holder is only partially solidified by being penetrated by the heat-shrinkable tube to only a part of the plurality of electric wires and the exterior part.

Thus, in the prior art, only a part of the wires is solidified between the wires and the jacket, so that a plurality of electric wires in which the jacket is peeled are maintained in a large number of non-solidified wires and the jacket, The molten wire holder is rubbed by pressing the heat-shrinkable tube so that the molten wire holder is uniformly spread between the plurality of wires and the outer portion, so that the molten wire holder is uniformly spread over a plurality of wires It has been flattened to float and solidify the whole, and has been waterproofed.

However, even though the above-mentioned conventional technique works to spread evenly while rubbing the wire holder to be melted, the melted wire holder does not penetrate to the end portion where the outer portion of the plurality of wires is not melted, The unsealed end portion has a strength that is weaker than other portions where the wire holder seeps into the solidified portion, so that even if a small external force acts, disconnection occurs relatively easily.

In order to solve the above-described problems, it is an object of the present invention to provide a waterproofing device, in which waterproofing means is inserted into a plurality of core wires from which a sheath has been stripped, Thereby preventing water from being cut between the plurality of core wires from which the sheath is removed and the outer surface of the end portion of the cable cable.

According to a preferred embodiment of the present invention, a plurality of core wires are covered with an outer sheath, a plurality of core wires formed in a cylindrical shape and having a plurality of core wires from which outer sheaths of the wire cables are stripped, A plurality of core wires, a plurality of core wires, a plurality of core wires, a plurality of core wires, and a plurality of core wires, Wherein the waterproofing means comprises a recessed surface in which the outer surface of the wire cable is recessed with a plurality of core wires from which the outer skin is detached to the inner peripheral wall of the insertion groove, A plurality of through holes penetrating through the other side of the core wire are formed in the outer surface of the outer casing, And a plurality of core wires inserted into the center of the cable cable end portion protruding from the center of the bottom surface in a direction opposite to the penetration direction of the through- And a contact protrusion for adhering the outer skin to each other.

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The effect of the present invention according to the above-described solution is that when a waterproof means is inserted into an end of a wire cable to which a connector for connecting an electronic device and an electronic device is coupled so that moisture does not penetrate outside, The plurality of core wires and the wire cables are fused so as to be waterproof together by inserting and melting a plurality of core wires of the coupled wire cable and the inner and outer wires of the wire cable, Since the thickness between the outer shells is reinforced, it is possible to prevent the occurrence of disconnection between the plurality of core wires and the outer surface of the end portion of the cable cable.

1 is a perspective view of a waterproofing device of an electric wire cable according to the present invention;
Fig. 2 is an exploded perspective view of the waterproofing device of the wire cable of the present invention
3 is a cross-sectional view of the waterproofing device of the present invention cable
4A is an exploded perspective view of another embodiment of the waterproofing means of the waterproofing device of the wire cable of the present invention.
4B is a cross-
5A is a perspective view of another embodiment of the waterproofing means of the waterproofing device of the wire cable according to the present invention.
Figure 5B is a cross-

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a waterproofing device of an electric wire cable according to the present invention.

As shown in Fig. 1, the present invention is characterized in that a plurality of core wires 1 coated with an insulating material are covered with a single sheath 2, and the sheath 2 is peeled off so that the sheath 2 is released A cable (10) to which a first connector (3) and a second connector (4) for connecting electronic devices or electronic devices to each other are connected to a plurality of core wires (1), a plurality of core wires (30) inserted into the outer shell (2) of the heat shrinkable tube (10) and compressed and contracted by heat.

The wire cable 10 having such a structure is provided with a plurality of core wires 1 to which the first connector 3 and the second connector 4 are coupled and a heat shrinkable tube 30 to which the wire cable 10 is thermally contracted And the outer shell 2 of the wire cable 10 is covered by the heat shrinkable tube 30 outwardly so that the external moisture is supplied to the connector 3 or 4 or It is possible to block or prevent penetration of the sheath 2 into the wire cable 10 by taking a plurality of stripped core wires 1.

FIG. 2 is an exploded perspective view of a waterproofing device of the present invention cable, and FIG. 3 is an assembled cross-sectional view of a waterproofing device of the present invention cable.

2, the waterproofing apparatus for an electric wire cable according to the present invention includes a plurality of core wires (a plurality of core wires) A waterproofing means 20 for filling the space between the plurality of core wires 1 while the plurality of core wires 1 are inserted and melted by heat; And a heat shrinkable tube (30) covering the outer surface (2) of the waterproofing means (20) and the wire cable (10) with contraction.

Here, the waterproofing means 20 is formed of a thermoplastic hot melt adhesive which has a cylindrical shape and is polyamide-based and is easily melted in heat and hardened in a short time, and is excellent in heat resistance.

The waterproofing device of the electric wire cable is characterized in that a plurality of core wires 1 from which the sheath 2 has been detached and the sheath 2 of the electric wire 10 are inserted together in the waterproofing means 20, 20, the heat shrinkable tube 30 is inserted into the outer side of the outer shell 2 of the plurality of core wires 1 and the wire cable 10.

Therefore, when the waterproofing means 20 inserted into the heat-shrinkable tube 30 applies heat to the heat-shrinkable tube 30, the heat-shrinkable tube 30 is contracted by heat and the heat is transmitted to the waterproofing means 20 And the waterproofing means 20 melts the waterproofing means 20. The waterproofing means 20 melts the waterproofing means 20 such that a plurality of core wires 1 from which the outer shell 2 is removed together with the heat shrinkable tube 30 and the wire cables 10 A space is not formed between the wire cable 10 and the plurality of core wires 1 so as to prevent moisture from penetrating through the plurality of core wires 1 as well as the wire cable 10 ) And the plurality of core wires (1).

3, the waterproofing means 20 is provided with an insertion groove 21, a through hole 22, and a contact protrusion 23.

The insertion groove 21 is formed with a plurality of core wires 1 formed on one side of the waterproofing means 20 and on the other side of the inner concentric circle from which the sheath 2 of the wire cable 10 is stripped So that the sheath 2 of the wire cable 10 is inserted.
The insertion groove 21 has an incidence surface 211 into which an outer shell 2 of the electric cable 10 is inserted and an inner surface of the outer surface of the electric cable 10 And a bottom surface 212 for blocking the insertion of the main body 2.

In the thus formed insertion groove 21, the outer sheath 2 of the wire cable 10 to be inserted is inserted into the recessed surface 211 while being blocked by the bottom surface 212.
Therefore, when the waterproofing means 20 is melted, the waterproofing means 20 applies the outer sheath 2 of the end portion of the electric cable 10 so that the sheath 2 of the end portion of the electric cable 10, A space is not formed between the plurality of core wires 1 and the outer shell 2 of the end portion of the wire cable 10 because the envelope 2 is filled between the plurality of core wires 1 from which the outer shell 2 has been removed, .

The through hole 22 is formed on the bottom surface 212 of the insertion groove 21 so as to be adjacent to the concave surface 211 and radially concentrically radially penetrates the other side surface, A plurality of core wires 1 are inserted from one side to the other side.

Therefore, the through-hole 22 entirely surrounds the outside of the plurality of core wires 1 to be inserted, so that the waterproofing means 20, which melts when the waterproofing means 20 is melted, The spaces between the plurality of core wires 12 do not occur and water is sealed between the core wires 1 and the outer surface 2 of the end portion of the wire cable 10.

The contact protrusions 23 protrude from the center of the bottom surface 212 of the insertion groove 21 in a direction opposite to the through direction of the through hole 22, Is inserted into the center of the plurality of cores 1 of the wire cable 10 from which the sheath 2 has not been unmachined.

The contact protrusions 23 inserted into the centers of the plurality of core wires 1 of the wire cable 10 without the outer shell 2 from being peeled off form a plurality of core wires 1 on the outer side, And the outer sheath 2 of the wire cable 10 is gripped so as not to be pushed outwardly by the recessed surface 211 of the insertion groove 21 of the waterproofing means 20, The outer shell 2 of the outer shell 2 is tightly adhered by the forces acting on the inner side and the outer side.

Therefore, the waterproofing means 20 melted during the melting of the waterproofing means 20 is provided with a plurality of core wires 1 from which the sheath 2 has been stripped and a plurality of core wires 1 from which the sheathing 2 is not removed The center of the plurality of core wires 1 and the outer shell 2 are tightly fused together so that the gap between the core wires 1 and the wire cable 10 is blocked to prevent moisture infiltration, It is possible to prevent disconnection due to a step difference because no step is generated between a plurality of core wires 1 from which the outer sheath 2 has been stripped and an end of the wire cable 10 from which the outer sheath 2 has not been stripped.

FIG. 4A is an exploded perspective view according to another embodiment of the waterproofing means of the waterproofing device of the wire cable of the present invention, and FIG. 4B is an assembled cross-sectional view of FIG. 4A.

4A and 4B, the waterproofing means 40 includes a waterproof body 41 through which a plurality of core wires 1 from which the sheath 2 has been removed are inserted and melted by heat, And a jacket portion 42 inserted from the plurality of core wires 1 into which the jacket 2 is detached from the other side to the jacket 2 of the electric cable 10.

The waterproofing body 41 has a cylindrical shape in which a part of the waterproofing body 41 is tapered so that only a part of the outer surface of the waterproofing body 41 is inserted and the inner surface of the waterproofing body 41 is covered with a wire cable 10, And a plurality of through holes 411 through which the plurality of core wires 1 are inserted and are led to the other side.

The jacket portion 42 is provided at one side thereof with a coupling hole 421 which is inwardly tapered so that only a part of the waterproofing body 41 is inserted and coupled and the jacket portion 42 is connected to the coupling hole 421 at the other side, And has an insertion port 422 to be inserted from a plurality of stripped core wires 1 to the outer shell 2 of the wire cable 10.

As shown in FIG. 4B, the waterproofing means 40 includes a plurality of concentric radial through holes (not shown) formed at one side of the jacket portion 42 and joined to the inwardly tapered engagement portion 421 411 are provided on the inner side and the waterproof body 41, which is partially tapered to one side of the outer side, is inserted. The waterproof body 41 inserted into the coupling hole 421 of the jacket portion 42 is not inserted into the inside of the coupling hole 421 and the outer surface of the waterproof body 41 by the tapered surface, So that only a part of the waterproof body 41 is coupled to the coupling hole 421 of the jacket 42 so as to cover the plurality of core wires 1 in a long length.

A wire cable 10 is inserted into the insertion port 422 of the jacket 42 to which the waterproofing body 41 is coupled from a plurality of core wires 1 from which the outer shell 2 is detached, The wire 1 is inserted through the plurality of through holes 411 of the waterproof body 41 and inserted into the insertion hole 422 to the outer shell 2 of the wire cable 10.

The plurality of core wires 1 and the wire cable 10 inserted into the waterproofing means 40 are inserted into the plurality of waterproofing bodies 41 which are melted when the waterproofing body 41 and the self- And the jacket portion 42 is also melted to fill the jacket 2 of the electric cable 10 so that the number of the plurality A space is not formed between the core wires 1 of the wire cable 10 and the jacket 2 of the wire cable 10 so that the penetration of water and the penetration of water between the core wire 1 and the jacket 2 of the wire cable 10 It is possible to prevent disconnection.

5A is a perspective view of another embodiment of the waterproofing means of the waterproofing device of the wire cable according to the present invention, and FIG. 5B is an assembled cross-sectional view of FIG. 5A.

As shown in Figs. 5A and 5B, the waterproofing means 50 has a cylindrical shape and a plurality of through-holes through which a plurality of core wires 1, into which radially outer concentric circles radially concentrate, And an insertion port 52 communicating with the plurality of through holes 51 and having an outer surface 2 of the end portion of the electric cable 10 inserted into the other side surface.

As shown in FIG. 5B, the waterproofing means 50 includes a plurality of through holes 51 provided at one side of the insertion port 52, and a plurality of core wires (1) is inserted to the inside of the insertion port (52) through the insertion hole (52) to the outer shell (2) of the end of the cable cable (10).

The plurality of core wires 1 inserted into the waterproofing means 50 and the outer shell 2 of the wire cable 10 are arranged such that the waterproofing means 50 melted when the waterproofing means 50 is melted, The plurality of core wires 1 inserted into the through hole 51 and the entirety of the wire cable 10 inserted into the insertion hole 52 are filled with the plurality of core wires 1 and the wire cable 10 A space is not generated between the outer shells 2 and no difference in thickness occurs, so that penetration of moisture and disconnection can be prevented.

One; A plurality of core wires 2; coat
3; A first connector 4; The second connector
10; Wire cables 20, 40, 50; Waterproofing
21; An insertion groove 211; Abdominal face
212; Bottom surface 22,411,51; Through-hole
23; A contact projection 30; Heat-shrinkable tube
41; Waterproof body 42; Jacket portion
421; Coupling portions 422, 52; parenthesis

Claims (6)

A plurality of core wires covered with a sheath,
A plurality of core wires formed in a cylindrical shape and radially extending in a radial direction concentric with the inner side of the insertion groove and inserted into the insertion groove into which a plurality of core wires from which the outer shell of the wire cable is stripped are inserted, And a heat-shrinkable tube which is inserted into the outer side of the plurality of core wires and the waterproof means and is contracted and sealed by heat, the waterproof device comprising:
Wherein the waterproofing means comprises a plurality of core wires having an outer shell removed from the inner peripheral wall of the insertion groove,
A bottom surface formed with a through hole through which a plurality of core wires are inserted into the other side of the concave surface,
A plurality of core wires protruding from the center of the bottom surface in a direction opposite to the penetration direction of the through-holes and inserted into the center of the cable cable end where the concave shell is not peeled off, And a protruding protrusion formed on the protrusion. delete delete delete delete delete
KR1020160006057A 2016-01-18 2016-01-18 Apparatus for waterproofing of electric cable KR101806320B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160006057A KR101806320B1 (en) 2016-01-18 2016-01-18 Apparatus for waterproofing of electric cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160006057A KR101806320B1 (en) 2016-01-18 2016-01-18 Apparatus for waterproofing of electric cable

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KR20170086340A KR20170086340A (en) 2017-07-26
KR101806320B1 true KR101806320B1 (en) 2017-12-07

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107680746B (en) * 2017-09-15 2024-04-16 宁波宏晟智能科技有限公司 Full-automatic single-pressure single-penetrating plastic shell sleeving machine
JP7003871B2 (en) * 2018-08-07 2022-01-21 株式会社オートネットワーク技術研究所 Manufacturing method of hot melt block and cable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012182924A (en) * 2011-03-02 2012-09-20 Sumitomo Wiring Syst Ltd Hot melt block for inter-wire water cut-off and terminal water cut-off method for multicore cable using hot melt block, and terminal water cut-off structure
JP2015090818A (en) * 2013-11-06 2015-05-11 住友電装株式会社 Wire harness

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012182924A (en) * 2011-03-02 2012-09-20 Sumitomo Wiring Syst Ltd Hot melt block for inter-wire water cut-off and terminal water cut-off method for multicore cable using hot melt block, and terminal water cut-off structure
JP2015090818A (en) * 2013-11-06 2015-05-11 住友電装株式会社 Wire harness

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