CN110718775A - Waterproof connection structure for electric wire and waterproof connection method for electric wire - Google Patents
Waterproof connection structure for electric wire and waterproof connection method for electric wire Download PDFInfo
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- CN110718775A CN110718775A CN201910624428.6A CN201910624428A CN110718775A CN 110718775 A CN110718775 A CN 110718775A CN 201910624428 A CN201910624428 A CN 201910624428A CN 110718775 A CN110718775 A CN 110718775A
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- heat
- splice
- shrinkable tube
- conductor
- wires
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
- H01R4/72—Insulation of connections using a heat shrinking insulating sleeve
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/005—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Cable Accessories (AREA)
Abstract
The invention provides a waterproof connecting structure of an electric wire and a waterproof connecting method of the electric wire, which can prevent the conductor part from being exposed due to the deviation of a heat shrinkable tube covering the exposed part of the conductor including a splicing part even under the condition of being placed in a high-temperature environment for a long time so as to prevent the damage of the protection and insulation functions of the conductor part. Comprising: a splice (10) formed in a position spaced inward from the tip (42a) of a conductor exposed portion (42) of a plurality of wires (40) in which the terminal portions of the insulation coatings have been removed, the conductor exposed portion being formed by surrounding the conductor portion (41) bundled by a plurality of individual wires (41a) with an insulation coating (43); a single-wire untwisted-enlarged portion formed by untwisting a plurality of single wires from the splice portion to the front end in a manner of expanding more outward than the cross section in the cross-sectional direction of the splice portion; and a heat-shrinkable tube attached to the plurality of electric wires so as to cover the exposed portion of the conductor including the single-strand untwisted enlarged portion, and having a heat-fusible layer provided on an inner surface thereof.
Description
Technical Field
The present invention relates to a waterproof connecting structure of an electric wire and a waterproof connecting method of an electric wire, which waterproof a conductor exposed portion where a plurality of electric wires are connected to each other.
Background
Conventionally, when a plurality of wires wired in a wire harness of an automobile are electrically connected to each other as branch connection portions of an electric circuit, exposed conductor portions of the plurality of wires are connected to each other after removing insulating coatings at terminal portions of the plurality of wires to expose conductor portions.
When such a wire harness is mounted on a vehicle, a heat-shrinkable tube is attached so as to cover a conductor exposed portion including a connection portion of a plurality of electric wires, thereby protecting and insulating the conductor portion.
For example, patent document 1 describes a waterproof connection structure of an electric wire in which a heat shrinkable tube having a heat-fusible layer provided on an inner surface thereof is attached so as to cover a conductor exposed portion including a core concentrated splice (splice) to a plurality of electric wires connected to each other by forming a core concentrated splice (splice) at a conductor exposed portion of a terminal portion from which an insulating coating is removed.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 11-233175
Disclosure of Invention
Technical problem to be solved by the invention
However, in the waterproof connection structure for an electric wire described in patent document 1, if the electric wire is left for a long time in a high-temperature environment such as a high-temperature environment in which the heat-fusible layer melts, the heat-fusible layer on the inner surface of the heat-shrinkable tube melts, and the heat-shrinkable tube shrinks and is displaced from a predetermined mounting position, and the conductor portion is exposed, and as a result, the function of protecting and insulating the conductor portion may be impaired.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a waterproof connecting structure of an electric wire and a waterproof connecting method of an electric wire, which can prevent a situation in which a conductor exposed portion including a splice portion is exposed due to displacement of a heat shrinkable tube covering the conductor exposed portion and the conductor exposed portion is damaged to protect and insulate the conductor portion, even when the electric wire is left in a high-temperature environment for a long time.
Means for solving the problems
In order to solve the above problems and achieve the object, a waterproof connection structure for an electric wire according to the present invention includes: a splice part formed at a position spaced from the tip of the conductor exposed part to the inside so that the plurality of wires are connected to each other, the conductor exposed part being a conductor part formed by surrounding a conductor part bundled by a plurality of individual wires with an insulating coating and from which the tip part of the insulating coating has been removed; a single-wire untwisted and enlarged portion that untwists the plurality of single wires from the splice to the tip so as to expand outward in a cross-sectional direction of the splice than in the cross-sectional direction; and a heat-shrinkable tube mounted on the plurality of electric wires connected to each other by the splices in such a manner as to cover the exposed portion of the conductor including the splices and the single-wire enlarged portion, and having a heat-fusible layer provided on an inner surface thereof.
In the waterproof connection structure for an electric wire according to the present invention, the heat-shrinkable tube has a strength such that the single wire of the single wire unraveled enlarged portion is not broken by the contraction.
In order to solve the above problems and achieve the object, a waterproof connecting method for an electric wire according to the present invention includes: a splice forming step of forming a plurality of wires, which are bundled by a plurality of wires, at a conductor exposed portion of the plurality of wires, from which a terminal portion of the insulation sheath has been removed, so that the plurality of wires are connected to each other, at a position apart from a tip of the conductor exposed portion; a single-wire unwinding and expanding step of forming a single-wire unwinding and expanding portion in which the plurality of single wires extending from a splice to the tip of the exposed conductor portion are unwound so as to expand outward in a cross-sectional direction of the splice than the cross-sectional direction; a heat-shrinkable tube mounting step of mounting a heat-shrinkable tube having a heat-fusible layer provided on an inner surface thereof on the plurality of electric wires connected to each other at the splice portions so as to cover the exposed conductor portions including the splice portions and the single-wire enlarged portions; and a heat-shrinkable tube heating step of applying heat for shrinking the heat-shrinkable tube to the heat-shrinkable tube mounted in the heat-shrinkable tube mounting step.
Effects of the invention
In the waterproof connection structure for electric wires according to the present invention, the heat-shrinkable tube attached so as to cover the exposed conductor portion including the splice and the single-wire enlarged untwisted portion is caught by each of the single wires of the single-wire enlarged untwisted portion unwound so that the plurality of single wires from the splice to the tip end are expanded outward in the cross-sectional direction of the splice than the cross-sectional direction.
Therefore, even if the heat-shrinkable tube is shrunk to be displaced from the predetermined mounting position due to the melting of the heat-fusible layer caused by being left for a long time in a high-temperature environment in which the heat-fusible layer is melted, the one-wire unwinding enlarged portion is caught on the inner surface of the heat-shrinkable tube, and thus the heat-shrinkable tube can be prevented from being displaced from the predetermined mounting position.
Therefore, even when the waterproof connecting structure for an electric wire according to the present invention is left in a high-temperature environment for a long time, the function of protecting and insulating the conductor part can be prevented from being damaged due to the conductor part being exposed by the displacement of the heat-shrinkable tube covering the conductor exposed part including the splice part.
In the waterproof connecting method for an electric wire according to the present invention, the splice is formed at a position away from the distal end of the conductor exposed portion toward the inside in the splice forming step, so that the plurality of element wires are easily separated in a section from the splice to the distal end of the conductor exposed portion.
In the waterproof connecting method for an electric wire according to the present invention, in the single wire untwisting and expanding step, the plurality of single wires which are in an easily untwisted state in a section from the splice to the tip of the exposed conductor portion in the splice forming step are untwisted with the splice as a base end so that the tip expands outward in the cross-sectional direction of the splice than the cross-sectional direction, and the single wire untwisting and expanding portion can be easily formed.
In the waterproof connecting method for electric wires according to the present invention, the heat-shrinkable tube is attached to the plurality of electric wires connected to each other by the splice so as to cover the exposed conductor portion including the single-thread unraveled and enlarged portion in the heat-shrinkable tube attaching step, and then the heat-shrinkable tube is made to follow the portion covered with the heat-shrinkable tube in the heat-shrinkable tube heating step, so that the single-thread unraveled and enlarged portion is further caught by the heat-shrinkable tube than in the state of the heat-shrinkable tube attaching step.
Therefore, the waterproof connecting method for electric wires according to the present invention can prevent the conductor part from being exposed due to displacement of the heat shrinkable tube covering the conductor exposed part including the splice part even when the electric wires are left in a high-temperature environment for a long time, and the function of protecting and insulating the conductor part from being damaged.
Drawings
Fig. 1 is a cross-sectional view of a waterproof structure of an electric wire according to an embodiment of the present invention, as viewed from above a splice portion of a heat shrinkable tube.
Fig. 2 is a view of the exposed conductor portion including the splice and the insulating coating around the exposed conductor portion, as viewed from above the splice.
Fig. 3 is a sectional view of a heat shrinkable tube.
Fig. 4A is a diagram for explaining a splice forming step, fig. 4B is a diagram for explaining a single-thread unwinding and expanding step, fig. 4C is a diagram for explaining a heat-shrinkable tube mounting step, and fig. 4D is a diagram for explaining a heat-shrinkable tube heating step.
Detailed Description
Hereinafter, preferred embodiments of a waterproof connecting structure of an electric wire and a waterproof connecting method of an electric wire according to the present invention will be described in detail with reference to the accompanying drawings.
[ examples ]
Fig. 1 is a cross-sectional view of a waterproof structure 1 of an electric wire according to an embodiment of the present invention, as viewed from above a splice 10 of a heat shrinkable tube. Fig. 2 is a view of the conductor exposed portion 42 including the splice 10 and the insulation coating 43 around the conductor exposed portion 42, as viewed from the upper side of the splice 10. Fig. 3 is a sectional view of the heat shrinkable tube 30.
The waterproof connection structure 1 for electric wires according to the embodiment of the present invention is configured to be disposed outdoors, for example, as branch connection portions of a plurality of electric wires 40 of a wire harness routed in a vehicle, and particularly, to be disposed in a place left in a high-temperature environment for a long time.
The waterproof connecting structure 1 for electric wires includes: a splice 10 formed by connecting a plurality of wires 40 to each other at conductor exposed portions 42 of the plurality of wires 40, from which end portions of the insulation covers 43 have been removed, in which the conductor portions 41 bundled by a plurality of individual wires 41a are surrounded by the insulation covers 43; a single-wire untwisted and enlarged portion 20 formed by untwisting a plurality of single wires 41a from the splice 10 to the tip 42a of the conductor exposed portion 42; and a heat-shrinkable tube 30 provided with a heat-fusible layer 31 on an inner surface 30a thereof.
First, the splice 10 will be explained.
The splice 10 is a portion in which the conductor portions 41 of the plurality of wires 40 are connected by, for example, thermocompression bonding (diffusion bonding), solder bonding, or ultrasonic bonding. In this embodiment, the splice 10 connects the conductor portions 41 of the plurality of wires 40 by thermocompression bonding.
In this embodiment, the conductor portion 41 of the electric wire 40 is a portion constituting a core wire bundled by a plurality of conductive element wires 41a of aluminum, copper, or the like.
In addition, in this embodiment, a structure in which 3 electric wires 40 are connected to each other is exemplified, but the number of the electric wires 40 connected to each other is not limited thereto, and may be 2 or 3 or more.
The splice 10 is a portion where the plurality of wires 40 are connected to each other by heating and crimping the conductor portions 41 of the plurality of wires 40 exposed at the distal end portions thereof in a state of being closely joined to each other using a press machine not shown.
In addition, in the conductor exposed portion 42 in which the end portion of the insulating sheath 43 is removed of the plurality of electric wires 40 in which the conductor portion 41 bundled by the plurality of element wires 41a is surrounded by the insulating sheath 43, the splice portion 10 is formed at a position spaced inward from the tip 42a of the conductor exposed portion 42 so that the plurality of electric wires 40 are connected to each other.
Therefore, the plurality of wires 41a can be easily untwisted in a section from the splice 10 formed in the conductor exposed portion 42 to the tip 42a of the conductor exposed portion 42.
Next, the single-thread unraveled enlarged portion 20 will be described.
The single-wire untwisted and enlarged portion 20 is a portion in which a plurality of wires 41a untwisted from the splice 10 to the tip 42a of the conductor exposed portion 42 are enlarged outward in the cross-sectional direction of the splice 10 from the cross-sectional side.
The conductor unwinding enlarged portion 20 is a portion that is caught by the heat shrinkable tube 30 in a state where the heat shrinkable tube 30 is attached.
In the case where the heat-shrinkable tube 30 is to be shifted from the predetermined mounting position by melting the heat-fusible layer 31 of the inner surface 30a of the heat-shrinkable tube 30 and shrinking the heat-shrinkable tube 30 due to long-term standing in a high-temperature environment in which the heat-shrinkable layer is melted, the single-wire unwinding enlarged portion 20 prevents the heat-shrinkable tube 30 from being shifted from the predetermined mounting position by being caught on the inner surface 30a of the heat-shrinkable tube 30.
Next, the heat shrinkable tube 30 will be described.
The heat shrinkable tube 30 is a bottomed cylindrical member including a heat shrinkable insulating material, and has a heat fusion layer 31 provided on an inner surface thereof.
The heat shrinkable tube 30 may be a bottomless tubular member.
The heat shrinkable tube 30 is attached to a plurality of electric wires 40 connected to each other by the splice 10 so as to cover a conductor exposed portion 42 including the splice 10 and the single wire enlarged portion 20 and a region surrounded by an insulating coating 43 around the conductor exposed portion 42.
The heat-shrinkable tube 30 has strength not to be broken by the single thread 41a of the single-thread unraveled enlarged portion 20 colliding with the inner surface 30a due to shrinkage.
Next, a waterproof connecting method of an electric wire according to an embodiment of the present invention will be described with reference to fig. 4A to 4D.
Fig. 4A is a diagram for explaining a splice forming step, fig. 4B is a diagram for explaining a single-thread unwinding and expanding step, fig. 4C is a diagram for explaining a heat-shrinkable tube mounting step, and fig. 4D is a diagram for explaining a heat-shrinkable tube heating step.
First, as a splice forming step, a splice 11 (see fig. 4A) as a connection portion of the electric wire 40 is formed.
In the splice forming step, the splice 10 is formed in a position separated from the tip 42a of the conductor exposed portion 43 so that the plurality of wires 40 are connected to each other, in the conductor exposed portion 42 of the plurality of wires 40 in which the tip of the insulation sheath 43 is removed, the conductor portion 41 being formed by bundling the plurality of wires 41a and surrounded by the insulation sheath 43.
In the splice forming step, the conductor parts 41 of the conductor exposed portions 42 of the plurality of wires 40 from which the insulating coatings of the terminal portions have been removed are brought into close contact with each other, and are pressed together while being heated by a press machine, not shown, to form the splices 10.
In the joint forming step, the joint 10 is formed by thermocompression bonding (diffusion bonding), but the joint 10 is not limited to this, and the joint 10 may be formed by welding or ultrasonic bonding.
Next, as a single-wire untwisting and expanding step, a single-wire untwisted and expanded portion 20 is formed in which a plurality of single wires 41a extending from the splice 10 to the tip 42a of the conductor exposed portion 42 are untwisted so as to expand outward in the cross-sectional direction of the splice 10 than in the cross-sectional direction (see fig. 4B).
In the single-wire unwinding and expanding step, the plurality of single wires 41a may be unwound with the crimped splice 10 as a base end, and the tip ends of the single wires 41a may be expanded in the cross-sectional direction of the splice 10 so as to expand outward from the cross-sectional direction.
Next, as a heat-shrinkable tube attaching step, the heat-shrinkable tube 30 is attached to the plurality of electric wires 40 connected to each other by the splice 10 (see fig. 4C).
In this heat-shrinkable tube attaching step, the heat-shrinkable tube 30 is attached to the plurality of electric wires 40 connected to each other by the splice 10 so as to cover the conductor exposed portion 42 including the splice 10 and the single wire enlarged portion 20 and the region surrounded by the insulating coating 43 of the conductor portion 41 around the conductor exposed portion 42.
In this heat-shrinkable tube mounting process, the individual strands 41a of the strand-unwound expanded portion 20 are accommodated in the heat-shrinkable tube 30 in a state expanded outward in the cross-sectional direction of the splice 10 than in the cross-sectional direction.
Finally, as the heat shrinkable tube heating step, the heat shrinkable tube 30 is shrunk by applying high-temperature heat to the attached heat shrinkable tube 30 (see fig. 4D).
In the heat shrinkable tube heating step, the heat shrinkable tube 30 is shrunk by applying high-temperature heat to the attached heat shrinkable tube 30, and the heat fusible layer 31 provided on the inner surface 30a of the heat shrinkable tube 30 is melted.
By shrinking the heat-shrinkable tube 30 in this way, the heat-shrinkable tube 30 can follow the portion covered with the heat-shrinkable tube 30.
In addition, the hot melt layer 31 is filled between the inner surface 30a of the heat shrinkable tube 30 and the portion covered with the heat shrinkable tube 30 and solidified after being melted.
In the heat-shrinkable tube heating step, the heat-shrinkable tube 30 is caused to follow the portion covered with the heat-shrinkable tube 30, and the heat-shrinkable tube 30 is caught by the single-thread unraveled enlarged portion 20.
In the waterproof connection structure 1 for an electric wire according to the embodiment of the present invention, the heat-shrinkable tube 30 attached so as to cover the conductor exposed portion 42 including the splice 10 and the single-wire untwisted enlarged portion 20 is caught by each single wire 41a of the single-wire untwisted enlarged portion 20 that is untwisted so that the plurality of single wires 41a extending from the splice 10 to the tip 42a are expanded outward in the cross-sectional direction of the splice 10 from the cross-sectional direction.
Therefore, even if the heat-shrinkable tube 30 shrinks and is about to shift from the predetermined attachment position due to the heat-fusible layer 31 being melted and the heat-shrinkable tube 31 being left for a long time in a high-temperature environment in which the heat-fusible layer 31 is melted, the one-wire-unwound enlarged portion 20 is caught by the inner surface 30a of the heat-shrinkable tube 30, and thus the heat-shrinkable tube 30 can be prevented from shifting from the predetermined attachment position.
Thus, the waterproof connecting structure 1 for an electric wire according to the present invention can prevent the conductor part 41 from being exposed due to displacement of the heat shrinkable tube 30 covering the conductor exposed part 42 including the splice 10 even when left in a high-temperature environment for a long time, and the function of protecting and insulating the conductor part 41 from being damaged.
In the waterproof connecting structure 1 for electric wires according to the embodiment of the present invention, the heat-shrinkable tube 30 has strength such that the single wire 41a of the single-wire untwisted enlarged portion 20 that collides with the inner surface 30a of the heat-shrinkable tube 30 due to shrinkage does not penetrate therethrough, and therefore the single-wire untwisted enlarged portion 20 can be made to function effectively as a catching portion of the heat-shrinkable tube 30.
In the waterproof connection method for an electric wire according to the present invention, the splice 10 is formed at a position away from the distal end 42a of the conductor exposed portion 42 toward the inside in the splice forming step, so that the plurality of element wires 41a are easily untwisted in a section from the splice 10 to the distal end 42a of the conductor exposed portion 42.
In the waterproof connecting method for an electric wire according to the present invention, the plurality of single wires 41a, which are easily untwisted in the section from the splice 10 to the distal end 42a of the conductor exposed portion 42, are untwisted in the single wire untwisting and expanding step so that the distal ends thereof are expanded outward in the cross-sectional direction of the splice 10 from the splice 10 as the base end, whereby the single wire untwisted and expanded portion 20 can be easily formed.
In the waterproof connection method according to the present invention, the heat-shrinkable tube 30 is attached to the plurality of electric wires 40 connected to each other at the splice 10 so as to cover the conductor exposed portion 42 including the single-wire enlarged untwisted portion 20 in the heat-shrinkable tube attaching step, whereby the wire enlarged untwisted portion 20 can be easily caught by the heat-shrinkable tube 30.
In the waterproof connection method for an electric wire according to the present invention, the heat-shrinkable tube 30 is made to follow the portion covered with the heat-shrinkable tube 30 in the heat-shrinkable tube heating step, so that the single-thread unwound expanded portion 20 can be easily caught by the heat-shrinkable tube 30 than in the heat-shrinkable tube attaching step.
Thus, the waterproof connecting method for electric wires according to the present invention can prevent the conductor part 41 from being exposed due to displacement of the heat shrinkable tube 30 covering the conductor exposed part 42 including the splice 10 even when the electric wires are left in a high temperature environment for a long time, and the protective and insulating functions of the conductor part 41 from being damaged.
The present invention has been described specifically based on the embodiments of the present invention described above, but the present invention can be variously modified within a range not exceeding the gist thereof, and is not limited to the embodiments of the present invention described above.
Claims (3)
1. A waterproof connecting structure of an electric wire, characterized by having:
a splice part formed at a position apart from a tip of a conductor exposed part of a plurality of electric wires, from which tip parts of the insulation sheaths have been removed, in such a manner that the plurality of electric wires are connected to each other, the conductor exposed part being formed by surrounding a conductor part bundled by a plurality of individual wires with an insulation sheath;
a single-wire-untwisted enlarged portion that untwists such that the plurality of single wires extending from the splice to the distal end of the conductor-exposed portion are expanded outward in a cross-sectional direction of the splice than the cross-sectional direction; and
a heat-shrinkable tube mounted on the plurality of electric wires connected to each other by the splices in such a manner as to cover the exposed portion of the conductor including the splices and the single-wire enlarged portion, and having a heat-fusible layer provided on an inner surface thereof.
2. The waterproof connecting structure of electric wire according to claim 1,
the heat shrinkable tube has a strength not to be broken by the single wire of the single wire untwisted enlarged portion colliding with the inner surface due to shrinkage.
3. A method of water-proof connection of electrical wires, comprising:
a splice forming step of forming a plurality of wires, which are bundled by a plurality of wires, at a conductor exposed portion of the plurality of wires, from which a terminal portion of the insulation sheath has been removed, so that the plurality of wires are connected to each other, at a position apart from a tip of the conductor exposed portion;
a single-wire unwinding and expanding step of forming a single-wire unwinding and expanding portion in which the plurality of single wires are unwound from a splice of the conductor exposed portion to the tip of the conductor exposed portion so as to expand outward in a cross-sectional direction of the splice than the cross-sectional direction;
a heat-shrinkable tube mounting step of mounting a heat-shrinkable tube having a heat-fusible layer provided on an inner surface thereof on the plurality of electric wires connected to each other at the splice portions so as to cover the exposed conductor portions including the splice portions and the single-wire enlarged portions; and
and a heat-shrinkable tube heating step of applying heat for shrinking the heat-shrinkable tube to the heat-shrinkable tube mounted in the heat-shrinkable tube mounting step.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-131330 | 2018-07-11 | ||
| JP2018131330A JP6839138B2 (en) | 2018-07-11 | 2018-07-11 | Waterproof connection structure of electric wire and waterproof connection method of electric wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110718775A true CN110718775A (en) | 2020-01-21 |
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ID=69152218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910624428.6A Pending CN110718775A (en) | 2018-07-11 | 2019-07-11 | Waterproof connection structure for electric wire and waterproof connection method for electric wire |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6839138B2 (en) |
| CN (1) | CN110718775A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613949A (en) * | 2020-05-30 | 2020-09-01 | 江苏奥兰通标识科技有限公司 | Wiring process of luminous identification lead |
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| US5579575A (en) * | 1992-04-01 | 1996-12-03 | Raychem S.A. | Method and apparatus for forming an electrical connection |
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| JPH117998A (en) * | 1997-06-11 | 1999-01-12 | Minnesota Mining & Mfg Co <3M> | Cover tube for wire connection part and wire connection device |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2020009686A (en) | 2020-01-16 |
| JP6839138B2 (en) | 2021-03-03 |
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