CN113809589A - Low-voltage insulated wire connection interface protection device - Google Patents

Low-voltage insulated wire connection interface protection device Download PDF

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Publication number
CN113809589A
CN113809589A CN202111131552.2A CN202111131552A CN113809589A CN 113809589 A CN113809589 A CN 113809589A CN 202111131552 A CN202111131552 A CN 202111131552A CN 113809589 A CN113809589 A CN 113809589A
Authority
CN
China
Prior art keywords
transparent shell
protection device
silica gel
transparent
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111131552.2A
Other languages
Chinese (zh)
Inventor
李凌
李亮棠
吴灼堪
梁桥新
张龙军
李坤
冯勇
赖向明
莫汉辉
何棋辉
刘柳斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Power Grid Co Ltd
Zhongshan Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Zhongshan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Power Grid Co Ltd, Zhongshan Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN202111131552.2A priority Critical patent/CN113809589A/en
Publication of CN113809589A publication Critical patent/CN113809589A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/465Identification means, e.g. labels, tags, markings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/502Bases; Cases composed of different pieces
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205Sealing means between cable and housing, e.g. grommet
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521Sealing between contact members and housing, e.g. sealing insert

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Cable Accessories (AREA)

Abstract

The invention discloses a protection device for a low-voltage insulated wire connection interface, which comprises a transparent shell and silica gel, wherein the surface of the transparent shell is coated with a thermosensitive material, the inner side surface of the transparent shell is in contact with the silica gel, the silica gel coats a wire connection interface, the transparent shell is provided with an injection opening, a waterproof plug is arranged at the injection opening, waterproof rubber strips are arranged at openings inside the transparent shell, and a plurality of waterproof rubber strips are arranged at the openings of the wires. According to the invention, the lead joint is sealed and protected by the silica gel and the transparent shell, so that the lead joint is isolated from external air, water and other impurities, and the lead joint is prevented from being in contact with air, moisture, impurities and the like to generate oxidation corrosion; the temperature sensitive material on the transparent shell can be according to the corresponding colour change that produces of temperature of joint department, and the staff monitors the wire joint department temperature variation condition through the temperature sensitive material colour change on the direct observation transparent shell, and the device cost of manufacture is low simultaneously, simple to operate.

Description

Low-voltage insulated wire connection interface protection device
Technical Field
The invention relates to the technical field of wire joint protection, in particular to a protection device for a low-voltage insulated wire connection interface.
Background
When the copper-aluminum wire connection is processed in the power engineering, the contact resistance is increased due to the fact that copper and aluminum are different in material. Meanwhile, because the electrical resistivity of the copper wire and the aluminum wire is different, the metal activity is different, and the contact surface is easily affected by moisture, carbon dioxide and other impurities in the air, so that the aluminum wire generates electrochemical corrosion, the contact resistance at the joint of the copper wire and the aluminum wire is increased, the temperature of the connection part is increased after electrification, the corrosion is aggravated after the temperature is increased, and a vicious circle is formed until the circuit is burnt out. When the equipment runs for a long time, and is overloaded or short-circuited, the joint can be heated up rapidly, a large amount of generated heat is transferred to the power equipment, power failure can be caused at light time, equipment burning, explosion fire and the like can be caused at heavy time.
In order to avoid the problems that the resistance of a joint is increased due to the direct connection of copper and aluminum wires and the temperature is increased to cause faults and potential safety hazards, the copper and aluminum transition wire clamp, the copper and aluminum transition joint or the copper wire is enameled with tin or the aluminum wire is enameled with tin and then directly connected at present, but the connection modes have the phenomenon that a wire joint and a connecting piece are exposed in the air, the device is easily damaged due to the oxidation and the corrosion of the air after being installed, a worker cannot visually monitor the temperature rise change of the electrified process of the wire joint, the operation condition of a circuit cannot be rapidly mastered, the fault cannot be timely maintained, the connecting pieces are high in cost, and the installation and the operation are inconvenient.
Disclosure of Invention
The invention provides a protection device for a connection interface of a low-voltage insulated wire, which is used for solving the problems that when a copper-aluminum wire is directly connected, a worker cannot visually monitor the temperature change condition after the temperature of the joint is increased, and the joint is easily damaged by air oxidation and corrosion.
The invention provides a low-voltage insulated wire connection interface protection device, which comprises: transparent shell, silica gel, transparent shell surface coating temperature sensing material, transparent shell inboard surface with the silica gel contact, silica gel cladding wire connection interface.
Preferably, the heat-sensitive material is coated on the transparent shell at the area close to the lead connecting interface;
the coating form of the thermosensitive material is uniformly distributed in a point shape, a strip shape or a sheet shape.
Preferably, the inner side surface of the heat sensitive material zone case is coated with the transparent outer case in contact with the silicone rubber.
Preferably, the silica gel is a heat-conducting silica gel.
Preferably, the transparent shell is formed by covering a plurality of shells, and the transparent shell is provided with a wire opening for a wire to enter the shell.
Preferably, the transparent shell casing is provided with an injection port, and the injection port is provided with a waterproof plug.
Preferably, the injection port is axially centered in the transparent housing.
Preferably, waterproof rubber strips are arranged at the openings inside the transparent shell, wherein a plurality of waterproof rubber strips are arranged at the openings of the leads.
Preferably, a sealing piece is arranged at the covering position of the transparent shell body;
the sealing piece is a buckle or an anti-corrosion screw.
Preferably, the transparent shell body is connected by a snap connection or a snap and hinge shaft combination.
According to the technical scheme, the invention has the following advantages:
the invention provides a protection device for a low-voltage insulated wire connection interface, which comprises a transparent shell and silica gel, wherein the surface of the transparent shell is coated with a thermosensitive material, the inner side surface of the transparent shell is in contact with the silica gel, and the silica gel coats a wire connection interface. The lead joint is sealed and protected by the silica gel and the transparent shell, so that the lead joint is isolated from external air, water and other impurities, and the lead joint is prevented from being in contact with air, moisture, impurities and the like to generate oxidation corrosion; meanwhile, the color of the thermosensitive material on the transparent shell correspondingly changes according to the temperature of the joint, a worker monitors the temperature change condition of the joint of the conducting wire by directly observing the color change of the thermosensitive material on the transparent shell, and the heat generated at the joint is quickly conducted to the transparent shell through silica gel heat conduction, so that the reaction of the thermosensitive material to the temperature change condition of the joint is quicker and more sensitive; in addition, the device has low manufacturing cost and convenient installation and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a perspective view of a closed state of a low-voltage insulated wire docking interface protection device according to an embodiment of the present invention;
fig. 2 is a schematic top view illustrating a closed state of a low-voltage insulated wire docking interface protection apparatus according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating an open state of a low-voltage insulated wire docking interface protection device according to an embodiment of the present invention;
description of reference numerals: transparent shell 1, first transparent shell casing 11, second transparent shell casing 12, wire opening 13, filling opening 14, heat sensitive material 2, silica gel 3, waterproof stripe 4, waterproof stopper 5, packing piece 6, buckle 7, hinge 8, wire 9, wire connection interface 10.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present application, it is to be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred devices or components must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present application.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," "uniformly" and "equispaced" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; the two components may be mechanically connected, directly connected, indirectly connected through an intermediate medium, or connected together internally. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The present invention provides an embodiment of a protection device for a low-voltage insulated wire connection interface, and particularly refers to fig. 1 to 3.
In this embodiment, a low voltage insulated wire refutes and connects interface protection device includes: transparent shell 1, silica gel 3, transparent shell 1 surface coating temperature sensing material 2, 1 inside surface of transparent shell with the contact of silica gel 3, 3 cladding wire connection interface 10 of silica gel. The thermosensitive material 2 is preferably coated on the inner surface of the transparent shell 1, and the thermosensitive material 2 can directly reflect the temperature change inside the transparent shell 1 relative to the outer surface; the silica gel 3 completely coats the wire connecting interface 10 and isolates the wire connecting interface from air, and the transparent shell 1 is closed and also isolates the wire connecting interface 10 from outside air and other impurities, so that the wire joint is prevented from being in contact with air to generate oxidation corrosion; meanwhile, the silica gel 3 is used as a heat conduction medium to replace air for heat conduction, so that heat generated by the lead connecting interface 10 can be quickly conducted to the transparent shell 1, and the thermosensitive material 2 coated on the transparent shell 1 correspondingly generates color change, thereby quickly reflecting the temperature condition of the lead connecting interface 10. In addition, the transparent property of the transparent shell 1 forms obvious color difference with the thermosensitive material 2 and the color changed by the thermosensitive material 2, so that the color change of the thermosensitive material 2 can be observed accurately.
Further, the thermosensitive material 2 is coated on the area of the transparent shell 1 close to the wire connection interface, preferably the middle area of the transparent shell 1, so that the distance between the thermosensitive material 2 and the wire connection interface 10 can be shortened, the distance and time of heat conduction can be further shortened, the heat loss in the heat conduction process can be reduced, the color change feedback of the thermosensitive material 2 can be rapidly obtained under the temperature condition of the wire connection interface 10, and the color change of the thermosensitive material 2 can more accurately reflect the temperature condition of the wire connection interface 10.
Further, the coating forms of the thermosensitive materials 2 are uniformly distributed in a dot shape, a strip shape and a sheet shape, the thermosensitive materials 2 in the coating area are uniformly distributed, and the dot size and the interval thereof, the strip width and the interval thereof and the coating thickness are the same, so as to ensure the consistency of the color change of the thermosensitive materials 2. Preferably in the form of a sheet, to facilitate the coating operation and also to facilitate the clear identification and accurate determination of the color change of the heat-sensitive material 2.
Further, transparent shell 1 coating the inside surface of the regional casing of temperature sensing material 2 with the contact of silica gel 3 shortens silica gel 3 with the distance of temperature sensing material 2, and then shortens heat-conducting distance, reduces the heat loss among the heat-conducting process, makes the heat of silica gel 3 conduction reachs fast temperature sensing material 2, the colour change of temperature sensing material 2 also can be more accurate the reaction go out the temperature condition of wire connection interface 10.
Further, silica gel 3 is heat conduction silica gel, heat conduction silica gel's coefficient of heat conduction is higher than ordinary silica gel, can shorten the time of heat-conduction, makes the heat that wire connection interface 10 produced passes through heat conduction silica gel conducts extremely fast on the transparent casing 1.
Further, the transparent shell 1 is formed by covering a first transparent shell body 11 and a second transparent shell body 12, and the first transparent shell body 11 and the second transparent shell body 12 are provided with a lead opening 13 for a lead to enter the shell body. It should be noted that the transparent casing 1 may be formed by covering two or more than three casings.
In a more preferred embodiment, the transparent casing 1 is provided with an injection port 14 for injecting the silica gel 3, so that a worker can conveniently coat the silica gel 3 on the surface of the wire connection interface 10; the waterproof plug 5 is provided to seal the inlet 14, and the inlet 14 and the waterproof plug 5 may be connected by a screw or by insertion and removal using a static friction force. In addition, the transparent property of the transparent shell 1 can also realize that the injection condition of the silica gel 3 can be conveniently observed by directly penetrating through the transparent shell 1.
In a more preferred embodiment, the injection port 14 is located at a central position of the first transparent casing 11, and the wire connection interface 10 is generally centered in the axial direction of the transparent casing 1 according to a conventional installation process of a person skilled in the art, so that the injection port 14 is located at the central position of the first transparent casing 11, which can improve the convenience of injection operation, and the operation of coating the wire connection interface 10 with the silicone gel 3 can be rapidly completed when viewing through the transparent casing 1.
In a more preferred embodiment, waterproof rubber strips 4 are disposed at openings inside the transparent casing 1, one waterproof rubber strip 4 is disposed at the edges of the first transparent casing 11 and the second transparent casing 12, and three waterproof rubber strips 4 are disposed at the wire opening 13, so that a waterproof sealing function of the transparent casing 1 is realized. It should be noted that two or more than two waterproof rubber strips are arranged at the opening 13 of the lead, so that the waterproof effect can be improved, and the waterproof requirement of the leads 9 with different diameters can be met.
In a more preferable embodiment, the sealing members 6 are uniformly arranged at the covered position of the first transparent casing body 11 and the second transparent casing body 12, so that the sealing property of the transparent casing 1 is improved, air, water and other impurities outside the transparent casing 1 are further isolated, and the sealing requirement of a high-pollution area is met; the sealing piece 6 is an anti-corrosion screw and is not easily oxidized and corroded by air in a hot and humid environment.
In a more preferred embodiment, the first transparent cover shell 11 and the second transparent cover shell 12 are connected by a hinge 8 and closed by a clasp 7, the clasp 7 and the closure 6 together serving to secure the transparent cover 1.
In a more preferred embodiment, the transparent housing 1 is made of PC material, and has transparency, flame retardancy, and oxidation resistance.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a low pressure insulated wire refutes and connects interface protection device which characterized in that: the protection device comprises a transparent shell and silica gel, wherein the surface of the transparent shell is coated with a thermosensitive material, the inner side surface of the transparent shell is contacted with the silica gel, and the silica gel coats the lead and is connected with the interface.
2. The protection device of claim 1, wherein: the heat-sensitive material is coated on the area of the transparent shell close to the lead connecting interface;
the coating form of the thermosensitive material is uniformly distributed in a point shape, a strip shape or a sheet shape.
3. The protection device of claim 1, wherein: the inner side surface of the shell with the heat-sensitive material-coated region of the transparent shell is in contact with the silica gel.
4. The protection device of claim 1, wherein: the silica gel is heat-conducting silica gel.
5. The protection device of claim 1, wherein: the transparent shell is formed by covering a plurality of shells, and the shell of the transparent shell is provided with a wire opening for a wire to enter the shell.
6. The protection device of claim 5, wherein: the transparent shell is provided with an injection port, and the injection port is provided with a waterproof plug.
7. The protection device of claim 6, wherein: the injection port is axially centered in the transparent shell.
8. The protection device of claim 6, wherein: waterproof adhesive tapes are arranged at the opening inside the transparent shell, wherein a plurality of waterproof adhesive tapes are arranged at the opening of the lead.
9. The protection device of claim 8, wherein: a sealing piece is arranged at the covering position of the transparent shell body;
the sealing piece is a buckle or an anti-corrosion screw.
10. The protection device of claim 9, wherein: the transparent shell body is connected with the hinge shaft in a buckling connection mode or a buckling and hinge shaft combination mode.
CN202111131552.2A 2021-09-26 2021-09-26 Low-voltage insulated wire connection interface protection device Pending CN113809589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111131552.2A CN113809589A (en) 2021-09-26 2021-09-26 Low-voltage insulated wire connection interface protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111131552.2A CN113809589A (en) 2021-09-26 2021-09-26 Low-voltage insulated wire connection interface protection device

Publications (1)

Publication Number Publication Date
CN113809589A true CN113809589A (en) 2021-12-17

Family

ID=78938577

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111131552.2A Pending CN113809589A (en) 2021-09-26 2021-09-26 Low-voltage insulated wire connection interface protection device

Country Status (1)

Country Link
CN (1) CN113809589A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1144979A (en) * 1995-09-05 1997-03-12 贯达发展有限公司 Electric connector
US5631321A (en) * 1994-08-02 1997-05-20 Yazaki Corporation Sealing component for connector waterproofing
JPH11195329A (en) * 1998-01-07 1999-07-21 Kenji Hagiwara Resin covered conductor and resin covered wiring device
KR20180087074A (en) * 2017-01-24 2018-08-01 주식회사 건원 Thermochromic connector made of fire-resistant new material
CN211827080U (en) * 2020-04-15 2020-10-30 昆山达菲乐电子产品有限公司 Memory card slot
CN212392051U (en) * 2020-10-10 2021-01-22 合肥市深朝电子有限公司 Temperature sensing electron pencil
CN213295231U (en) * 2020-08-07 2021-05-28 浙江麦斯威迩绝缘科技有限公司 Temperature-sensing color-changing insulating adhesive tape for electrical insulation
CN113178840A (en) * 2021-05-20 2021-07-27 徽煌电气有限公司 Cable intermediate joint protective sleeve and installation method thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5631321A (en) * 1994-08-02 1997-05-20 Yazaki Corporation Sealing component for connector waterproofing
CN1144979A (en) * 1995-09-05 1997-03-12 贯达发展有限公司 Electric connector
JPH11195329A (en) * 1998-01-07 1999-07-21 Kenji Hagiwara Resin covered conductor and resin covered wiring device
KR20180087074A (en) * 2017-01-24 2018-08-01 주식회사 건원 Thermochromic connector made of fire-resistant new material
CN211827080U (en) * 2020-04-15 2020-10-30 昆山达菲乐电子产品有限公司 Memory card slot
CN213295231U (en) * 2020-08-07 2021-05-28 浙江麦斯威迩绝缘科技有限公司 Temperature-sensing color-changing insulating adhesive tape for electrical insulation
CN212392051U (en) * 2020-10-10 2021-01-22 合肥市深朝电子有限公司 Temperature sensing electron pencil
CN113178840A (en) * 2021-05-20 2021-07-27 徽煌电气有限公司 Cable intermediate joint protective sleeve and installation method thereof

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