CN112700918B - Cold-proof photovoltaic cable - Google Patents

Cold-proof photovoltaic cable Download PDF

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Publication number
CN112700918B
CN112700918B CN202011514870.2A CN202011514870A CN112700918B CN 112700918 B CN112700918 B CN 112700918B CN 202011514870 A CN202011514870 A CN 202011514870A CN 112700918 B CN112700918 B CN 112700918B
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China
Prior art keywords
cavity
wall
cable
heat preservation
layer
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CN202011514870.2A
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CN112700918A (en
Inventor
李会超
李士勇
耿献涛
张辉停
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Annette Cable Group Co ltd
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Annette Cable Group Co ltd
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Publication of CN112700918A publication Critical patent/CN112700918A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28Protection against damage caused by moisture, corrosion, chemical attack or weather
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/295Protection against damage caused by extremes of temperature or by flame using material resistant to flame

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  • Photovoltaic Devices (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The invention relates to the technical field of photovoltaic cables, and discloses a cold-proof photovoltaic cable which comprises a cable body, wherein a central body is arranged inside the cable body, an insulating cavity is arranged at the side edge of the central body, a cable core is arranged at the inner side of the insulating cavity, a through hole connecting layer is arranged on the outer wall of the insulating cavity, a heat preservation cavity is arranged on the outer wall of the through hole connecting layer, the arranged heat preservation cavity is favorable for setting an internal mechanism of the cable body and playing a good heat preservation cavity layer effect on the external parts of four groups of cable cores arranged inside the cable body, the communicating layer arranged inside the heat preservation cavity is favorable for the effective communication inside the heat preservation layer of the cable body and playing a role in setting a plurality of arrangement cavities on the cable body, the arranged plurality of arrangement cavities are favorable for filling a heat absorption material body inside the cable body, the heat preservation and storage effects are effectively carried out through a material of the cable body, and the photovoltaic cable body is convenient to be placed in a cold environment, the heat preservation cavity has an effective heat preservation and cold prevention effect inside the heat preservation cavity.

Description

Cold-proof photovoltaic cable
Technical Field
The invention relates to the technical field of photovoltaic cables, in particular to a cold-proof photovoltaic cable.
Background
With the progress of economy in China, the fields of communication technology, broadcast television, railway traffic, petrochemical industry, buildings and the like are rapidly developed, various cables are widely used in the fields and become one of essential components, and the performance requirements of the cables are continuously improved along with the gradual expansion of the application field.
At prior art's photovoltaic cable in the use, be difficult to realize effectual winter protection frost-resistant effect for its photovoltaic cable is difficult to adapt to effectual result of use under the low temperature environment, reduces its practicality, and photovoltaic cable among the prior art, be difficult to realize its inside good fire-retardant protective properties, receive when damaged easily at its surface, lead to inside short circuit, catch fire and the phenomenon of easy circular telegram, when making its safety in utilization not good, cause higher economic loss easily.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the cold-proof photovoltaic cable which has the advantages of effective cold protection and higher safety coefficient, and solves the problems of difficult low temperature resistance and poor safety in the traditional technology.
The invention provides the following technical scheme: a cold-proof photovoltaic cable comprises a cable body, wherein a central body is arranged inside the cable body, an insulating cavity is arranged on the side edge of the central body, an insulating built-in body is fixedly arranged on the inner wall of the insulating cavity, a cable core is arranged on the inner side of the insulating cavity, a through hole connecting layer is arranged on the outer wall of the insulating cavity, a heat preservation cavity is arranged on the outer wall of the through hole connecting layer, a communicating layer is arranged inside the heat preservation cavity, a placement cavity is arranged on the communicating layer, a heat absorption body is arranged inside the placement cavity, a connecting strip is fixedly arranged on the outer wall of the placement cavity, one end of the connecting strip is fixedly connected with the inner wall of the heat preservation cavity, a flame retardant cavity is arranged on the outer wall of the heat preservation cavity, a flame retardant layer is arranged inside the flame retardant cavity, the flame retardant layer is connected with the outer wall of the heat preservation cavity, hollow adhesive cavity beads are arranged on the outer wall of the flame retardant layer and are positioned inside the flame retardant cavity, the outer wall of the flame-retardant cavity is provided with an external insulating sleeve.
Preferably, four groups of insulation cavities are arranged on the side edge of the central body, and the four groups of insulation cavities are distributed on the side edge of the central body in a square matrix.
Preferably, a plurality of insulation built-in bodies are fixedly mounted on the inner walls of the four groups of insulation cavities, the insulation built-in bodies are circumferentially and uniformly distributed on the inner walls of the insulation cavities, and cable cores are arranged on the inner sides of the four groups of insulation cavities.
Preferably, the communicating layer is provided with a plurality of placing cavities, the placing cavities are all in an oval cavity structure, and the placing cavities are all provided with heat absorbing bodies.
Preferably, a plurality of connecting strips are fixedly mounted on the outer walls of the two sides of the placement cavity, and one ends of the connecting strips are fixedly connected with the inner wall of the heat preservation cavity.
Preferably, the outer wall of the flame retardant layer is provided with a plurality of hollow adhesive cavity beads, the hollow adhesive cavity beads are all located in the flame retardant cavity, and the hollow adhesive cavity beads are uniformly distributed on the outer wall of the flame retardant layer in a circumferential mode.
Preferably, the hollow adhesive cavity bead body is filled with adhesive colloid material.
Compared with the prior art, the invention has the following beneficial effects:
1. this winter protection photovoltaic cable, heat preservation chamber through setting up, be favorable to when setting up the inside mechanism of body, play the cable core of four groups that establish to its inside good heat preservation chamber layer effect outside, through the intercommunication layer that sets up at heat preservation intracavity portion, be favorable to the inside effectual intercommunication effect of body heat preservation, and play the setting effect to a plurality of arrangement chambeies above that, a plurality of arrangement chambeies through setting up, be favorable to the filling effect to its inside heat absorption material body, and effectual storage effect that keeps warm through the body material, be convenient for body photovoltaic cable arranges in under cold environment in, self plays the inside effectual heat preservation winter protection effect of heat preservation intracavity, and through the connecting strip who establishes, be favorable to when effectively connecting to settling the chamber, be convenient for its and the good fixed action of being connected of heat preservation intracavity wall.
2. The cold-proof photovoltaic cable is beneficial to the arrangement of a mechanism in the body through the arranged flame-retardant cavity, plays a role of effectively insulating and protecting the outside of the heat-preservation cavity, can play an effective connection role with an external insulating sleeve arranged on the outer wall, is beneficial to playing a role of flame-retardant protection when an internal cable core is used through the flame retardant layer arranged in the flame-retardant cavity, plays an effective protection role on the inside when the outside of the external body photovoltaic cable is damaged, has a hollow cavity structure of a flexible column bar through the arranged hollow adhesive cavity beads, has a bonding colloid material with large adhesiveness stored in the body, is beneficial to effectively connecting and supporting the inside of the flame-retardant cavity, plays a role of releasing a bonding colloid in the interior when the outside of the body photovoltaic cable is damaged or cracked, is beneficial to effectively bonding a damaged part, and avoids the body from being damaged, causing internal fire or short circuit and simultaneously achieving effective electricity insulation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial left side view of the present invention;
fig. 3 is an enlarged schematic view of a structure in fig. 1.
In the figure: 1. a cable body; 2. a central body; 3. an insulating cavity; 4. an insulating built-in body; 5. a cable core; 6. a via connection layer; 7. a heat preservation cavity; 8. a communicating layer; 9. a placement cavity; 10. a heat sink body; 11. a connecting strip; 12. a flame retardant cavity; 13. a flame retardant layer; 14. a hollow adhesive cavity bead; 15. an external insulating sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments 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.
Referring to fig. 1-3, a cold-proof photovoltaic cable comprises a cable body 1, a central body 2 is arranged inside the cable body 1, four groups of insulation cavities 3 are arranged on the side edges of the central body 2, the four groups of insulation cavities 3 are distributed on the side edges of the central body 2 in a square matrix, a plurality of insulation built-in bodies 4 are fixedly arranged on the inner walls of the four groups of insulation cavities 3, the plurality of insulation built-in bodies 4 are uniformly distributed on the inner walls of the insulation cavities 3 in a circumferential manner, cable cores 5 are arranged on the inner sides of the four groups of insulation cavities 3, through hole connecting layers 6 are arranged on the outer walls of the insulation cavities 3, the effective connection and arrangement functions of the four groups of insulation cavities 3 are facilitated through the arranged central body 2, the effective communication function of internal through holes is facilitated when the internal connection and filling is facilitated through the arranged through hole connecting layers 6, and the effective heat dissipation function is facilitated for the cable cores 5 arranged on the inner sides during the power-on work, the inner overheating phenomenon is prevented, an insulation built-in body 4 arranged in an insulation cavity 3 can effectively fill the inner wall of the insulation cavity 3 and simultaneously plays a good insulation protection role for a cable core 5, a heat preservation cavity 7 is arranged on the outer wall of a through hole connecting layer 6, a communicating layer 8 is arranged in the heat preservation cavity 7, a plurality of placing cavities 9 are arranged on the communicating layer 8, the placing cavities 9 are all in an oval cavity structure, heat absorbing bodies 10 are arranged in the placing cavities 9, connecting strips 11 are fixedly arranged on the outer walls of the two sides of the placing cavities 9, one ends of the connecting strips 11 are fixedly connected with the inner wall of the heat preservation cavity 7, a flame retardant cavity 12 is arranged on the outer wall of the heat preservation cavity 7, a flame retardant layer 13 is arranged in the flame retardant cavity 12, the flame retardant layer 13 is connected with the outer wall of the heat preservation cavity 7, a plurality of hollow adhesive cavity beads 14 are arranged on the outer wall of the flame retardant layer 13, and the hollow adhesive cavity beads 14 are all located in the flame retardant cavity 12, and a plurality of hollow adhesive cavity pearls 14 are evenly distributed on the outer wall of the flame retardant layer 13 in a circumferential manner, the outer wall of the flame retardant cavity 12 is provided with an external insulating sleeve 15, the external insulating sleeve 15 is favorable for performing outermost insulation protection on the body photovoltaic cable, meanwhile, the flame retardant cavity 12 arranged on the inner side of the flame retardant cavity is favorable for utilizing the hollow adhesive cavity pearls 14 arranged around the circumference, when the external insulating sleeve 15 is damaged or cracked in the using process, the hollow adhesive cavity pearls 14 play a role in releasing adhesive colloid materials filled in the body at the cracking position, the effective adhesive effect on the cracking position is favorable for preventing the body photovoltaic cable from being greatly influenced by the damage of the local appearance to the inside, even generating short circuit, fire and conductive phenomena, and high economic loss is easily caused while the peripheral safety is threatened.
When the photovoltaic cable is used, the cable core 5 for cable conduction is arranged on the inner side of the insulating cavity 3 in a penetrating mode, the heat absorption material body 10 for heat preservation is filled in the accommodating cavity 9, so that the photovoltaic cable is stored in the heat preservation cavity 7 conveniently, when the body photovoltaic cable is placed in a cold environment, the internal effective heat preservation effect is achieved, the effective anti-frost cracking effect on the body photovoltaic cable is facilitated, the hollow adhesive cavity beads 14 are filled with viscose materials with high adhesiveness, when the outer surface of the body photovoltaic cable is damaged, the hollow adhesive cavity beads 14 are damaged at the broken parts at the same time, the colloid materials are released outwards, the effective viscose connection effect is achieved on the damaged parts, and the effect of preventing damage from causing large adverse effects on the internal cable core 5 is achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a winter protection photovoltaic cable, includes cable body (1), its characterized in that: the cable comprises a cable body (1), wherein a central body (2) is arranged in the cable body (1), an insulating cavity (3) is arranged on the side edge of the central body (2), an insulating built-in body (4) is fixedly arranged on the inner wall of the insulating cavity (3), a cable core (5) is arranged on the inner side of the insulating cavity (3), a through hole connecting layer (6) is arranged on the outer wall of the insulating cavity (3), a heat insulating cavity (7) is arranged on the outer wall of the through hole connecting layer (6), a communicating layer (8) is arranged in the heat insulating cavity (7), a placing cavity (9) is arranged on the communicating layer (8), a heat absorbing material body (10) is arranged in the placing cavity (9), a connecting strip (11) is fixedly arranged on the outer wall of the placing cavity (9), one end of the connecting strip (11) is fixedly connected with the inner wall of the heat insulating cavity (7), and a flame-retardant cavity (12) is arranged on the outer wall of the heat insulating cavity (7), the interior in fire-retardant chamber (12) is equipped with flame retardant layer (13), flame retardant layer (13) and heat preservation chamber (7) outer wall connection, the outer wall on flame retardant layer (13) is equipped with cavity adhesive chamber pearl (14), cavity adhesive chamber pearl (14) are located the inside in fire-retardant chamber (12), the outer wall in fire-retardant chamber (12) is equipped with external insulating cover (15).
2. The cold-proof photovoltaic cable of claim 1, characterized in that: four groups of insulation cavities (3) are arranged on the side edge of the central body (2), and the four groups of insulation cavities (3) are distributed on the side edge of the central body (2) in a square matrix manner.
3. The cold-proof photovoltaic cable of claim 1, characterized in that: the inner wall of four groups of insulation chamber (3) is all fixed mounting has a plurality of insulation built-in bodies (4), and is a plurality of insulation built-in bodies (4) are circumference evenly distributed at the inner wall of insulation chamber (3), and four groups the inboard in insulation chamber (3) all is equipped with cable core (5).
4. The cold-proof photovoltaic cable of claim 1, characterized in that: the heat-absorbing material is characterized in that a plurality of placing cavities (9) are arranged on the communicating layer (8), the placing cavities (9) are all in an oval cavity structure, and a heat-absorbing material body (10) is arranged inside the placing cavities (9).
5. The cold-proof photovoltaic cable of claim 1, characterized in that: a plurality of connecting strips (11) are fixedly mounted on the outer walls of the two sides of the placement cavity (9), and one ends of the connecting strips (11) are fixedly connected with the inner wall of the heat preservation cavity (7).
6. The cold-proof photovoltaic cable of claim 1, characterized in that: the outer wall of the flame retardant layer (13) is provided with a plurality of hollow adhesive cavity beads (14), the hollow adhesive cavity beads (14) are located inside the flame retardant cavity (12), and the hollow adhesive cavity beads (14) are uniformly distributed on the outer wall of the flame retardant layer (13) in a circumferential mode.
7. The cold-proof photovoltaic cable of claim 1, characterized in that: the inside of the hollow adhesive cavity bead (14) is filled with adhesive colloid material.
CN202011514870.2A 2020-12-21 2020-12-21 Cold-proof photovoltaic cable Active CN112700918B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011514870.2A CN112700918B (en) 2020-12-21 2020-12-21 Cold-proof photovoltaic cable

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Application Number Priority Date Filing Date Title
CN202011514870.2A CN112700918B (en) 2020-12-21 2020-12-21 Cold-proof photovoltaic cable

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CN112700918A CN112700918A (en) 2021-04-23
CN112700918B true CN112700918B (en) 2022-02-15

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113322699B (en) * 2021-08-03 2021-09-24 南通隆彩纺织科技有限公司 High-strength fireproof cable rope

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DE1665599A1 (en) * 1966-04-06 1971-03-25 Siemens Ag Low temperature cable for energy transmission
US4397807A (en) * 1980-01-14 1983-08-09 Electric Power Research Institute, Inc. Method of making cryogenic cable
GB2140195A (en) * 1982-12-03 1984-11-21 Electric Power Res Inst Cryogenic cable and method of making same
CN108806850A (en) * 2018-05-30 2018-11-13 安徽庆华电缆有限公司 A kind of cold-resistant power cable of rated voltage 0.6-1kV extruded insulations
CN109727715A (en) * 2018-12-31 2019-05-07 杭州欣禾工程管理咨询有限公司 Coaxial cable is used in a kind of paralysis indication light current intellectualizing system wiring
CN209071038U (en) * 2018-11-20 2019-07-05 青岛弘博电缆有限公司 A kind of high fire-retardance safety cable
CN110232990A (en) * 2019-05-20 2019-09-13 浙江启超电缆股份有限公司 Extrusion pressing type medium voltage DC cable
CN210325313U (en) * 2019-08-24 2020-04-14 武汉新天地电工科技有限公司 Environment-friendly flame-retardant cable
CN211125104U (en) * 2019-11-25 2020-07-28 扬州华宇电缆有限公司 Military cold-resistant high-temperature-resistant digital computer signal flexible cable
CN211294681U (en) * 2020-02-27 2020-08-18 四川金力电缆集团有限公司 Novel braided shielding steel tape armored environment-friendly control cable

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CN208385047U (en) * 2018-07-09 2019-01-15 扬州劳根电气有限公司 A kind of new energy development charge bearing detecting cable
CN109285618B (en) * 2018-09-25 2020-04-28 青岛长城巨龙电缆有限公司 High-flame-retardant fire-resistant low-smoke halogen-free cable and preparation method thereof

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1665599A1 (en) * 1966-04-06 1971-03-25 Siemens Ag Low temperature cable for energy transmission
US4397807A (en) * 1980-01-14 1983-08-09 Electric Power Research Institute, Inc. Method of making cryogenic cable
GB2140195A (en) * 1982-12-03 1984-11-21 Electric Power Res Inst Cryogenic cable and method of making same
CN108806850A (en) * 2018-05-30 2018-11-13 安徽庆华电缆有限公司 A kind of cold-resistant power cable of rated voltage 0.6-1kV extruded insulations
CN209071038U (en) * 2018-11-20 2019-07-05 青岛弘博电缆有限公司 A kind of high fire-retardance safety cable
CN109727715A (en) * 2018-12-31 2019-05-07 杭州欣禾工程管理咨询有限公司 Coaxial cable is used in a kind of paralysis indication light current intellectualizing system wiring
CN110232990A (en) * 2019-05-20 2019-09-13 浙江启超电缆股份有限公司 Extrusion pressing type medium voltage DC cable
CN210325313U (en) * 2019-08-24 2020-04-14 武汉新天地电工科技有限公司 Environment-friendly flame-retardant cable
CN211125104U (en) * 2019-11-25 2020-07-28 扬州华宇电缆有限公司 Military cold-resistant high-temperature-resistant digital computer signal flexible cable
CN211294681U (en) * 2020-02-27 2020-08-18 四川金力电缆集团有限公司 Novel braided shielding steel tape armored environment-friendly control cable

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PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A cold resistant photovoltaic cable

Granted publication date: 20220215

Pledgee: Industrial and Commercial Bank of China Limited Xining Datong Branch

Pledgor: Annette Cable Group Co.,Ltd.

Registration number: Y2024630000002

PE01 Entry into force of the registration of the contract for pledge of patent right