Cable terminal joint for photovoltaic equipment
Technical Field
The utility model relates to a cable termination connects technical field specifically is a cable termination connects for photovoltaic equipment.
Background
The cable terminal joint for the photovoltaic equipment generally refers to a cable terminal joint used on the photovoltaic equipment, the cable terminal joint integrates water resistance, stress control, shielding and insulation, has good electrical performance and mechanical performance, can be used for a long time under various severe environmental conditions, has the advantages of light weight, convenient installation and the like, is widely applied to various fields of electric power, petrochemical industry, metallurgy, railway ports, buildings and the like, and is used for being assembled to the head end and the tail end of a cable circuit to complete devices connected with other electrical equipment, and comprises an outdoor terminal, an indoor terminal, an elbow-shaped terminal and the like, the cable terminal joint is uniform in electric field distribution at the tail end of the cable to realize effective control of electric stress, the electric stress control refers to control of the electric field distribution and the electric field intensity, and appropriate measures are taken to ensure that the electric field distribution and the electric field intensity are in the optimal state so as to ensure that the electric field distribution is as uniform as possible, the reliability of the operation of the cable is improved.
However, the existing cable terminal connector for photovoltaic equipment has not very high wear resistance and long service life; therefore, the existing requirements are not met, and a cable terminal connector for photovoltaic equipment is provided for the requirements.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cable terminal joint for photovoltaic equipment to it is not very high to provide cable terminal joint for photovoltaic equipment wearability in solving above-mentioned background art, and life is not very long problem.
In order to achieve the above object, the utility model provides a following technical scheme: a cable terminal joint for photovoltaic equipment comprises a photovoltaic cable, wherein an insulating cylinder is installed on the outer side above the photovoltaic cable, three cold-contraction sleeves are installed on the upper portion of the insulating cylinder, insulating bandages are installed on the upper portions of the three cold-contraction sleeves, three insulating bandages are arranged, a cold-contraction insulating rod is installed on the upper portion of each insulating bandage, a terminal protective sleeve is installed on the upper portion of the cold-contraction insulating rod, a heat insulation film is installed on the outer side of the insulating cylinder, the insulating cylinder is connected with the heat insulation film in a sticking mode, a wear-resistant film is installed on the outer side of each heat insulation film, filling glue is installed on the inner wall of each insulating cylinder, three copper woven bags are installed on the outer side of the photovoltaic cable, insulating tapes are installed on the outer side of each copper woven bag and are provided with a plurality of insulating tapes, branch cable wires are installed on the upper, waterproof glue is installed on the inner wall of the cold-shrinkage three-branch sleeve.
Preferably, the insulating piece is installed in the outside of terminal protective sheath, and the insulating piece is provided with a plurality of.
Preferably, a hood is arranged above the terminal protective sleeve.
Preferably, the wiring terminal is installed above the hood, and the hood is connected with the wiring terminal clamping groove.
Preferably, the terminal protective sleeve is internally provided with a terminal copper column, and the terminal protective sleeve is connected with the terminal copper column in a sealing manner.
Preferably, a semi-conductive self-adhesive tape is arranged between the branch cable and the terminal copper column.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an installation heat insulating film and wear-resisting film in the outside of insulating cylinder, because the insulating cylinder is the junction of cable terminal connector, relatively thick heavy easy wearing and tearing, the wear-resisting film plays the effect of abrasionproof loss, and the heat insulating film plays fine thermal-insulated effect, prevents that the insulating cylinder from insolating under the sun and producing dirt glued and splitting, has effectively promoted the life of cable terminal connector;
2. the utility model discloses an pour into waterproof glue into in the inside of three sleeves of shrinkage, waterproof glue plays fine waterproof and sealed effect, prevents that the junction from intaking the electric leakage, through the outside installation copper braided bag at photovoltaic cable and branch cable conductor, copper braided bag matter ground is soft, and the heat dissipation is fast, and anti-interference effect is good, and the electric conductivity is high, and anti fatigue ability is strong, has promoted the perfection of device greatly.
Drawings
Fig. 1 is a front view of a cable terminal connector for a photovoltaic device according to the present invention;
fig. 2 is a schematic view of the internal structure of the insulating cylinder of the present invention;
fig. 3 is the schematic view of the internal structure of the terminal protection sleeve of the present invention.
In the figure: 1. a photovoltaic cable; 2. an insulating cylinder; 3. three cold-contraction sleeves; 4. an insulating bandage; 5. a cold-shrink insulating rod; 6. a terminal protective sleeve; 7. an insulating sheet; 8. a hood; 9. a wiring terminal; 10. a heat insulating film; 11. a wear-resistant rubber sheet; 12. filling glue; 13. a copper woven bag; 14. an insulating tape; 15. branch cable lines; 16. waterproof glue; 17. a terminal copper pillar; 18. a semiconductive self-adhesive tape.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the present invention provides an embodiment: a cable terminal joint for photovoltaic equipment comprises a photovoltaic cable 1, wherein an insulating cylinder 2 is installed on the outer side above the photovoltaic cable 1, three cold-shrinkage sleeves 3 are installed on the upper side of the insulating cylinder 2, three insulating bandages 4 are installed on the upper sides of the three cold-shrinkage sleeves 3, three insulating bandages 4 are arranged, a cold-shrinkage insulating rod 5 is installed on the upper side of each insulating bandage 4, a terminal protective sleeve 6 is installed on the upper side of each cold-shrinkage insulating rod 5, a heat insulation film 10 is installed on the outer side of each insulating cylinder 2, the insulating cylinders 2 are connected with the heat insulation film 10 in a sticking mode and are tightly connected with each other and are not prone to falling off, a wear-resistant rubber sheet 11 is installed on the outer sides of the heat insulation films 10, filling rubber 12 is installed on the inner wall of each insulating cylinder 2, copper woven bags 13 are installed on the outer sides of the photovoltaic cable 1, three copper woven bags 13 are installed on the outer sides, and the number of the branch cables 15 is three, and the inner walls of the cold-shrinkage three branch sleeves 3 are provided with waterproof glue 16.
Further, insulating piece 7 is installed in the outside of terminal protective sheath 6, and insulating piece 7 is provided with a plurality of, and insulating piece 7 plays fixed skid-proof effect.
Further, a cap 8 is mounted above the terminal protective sleeve 6, and the cap 8 plays a role in sealing the terminal copper cylinder 17 and the wiring terminal 9.
Furthermore, the wiring terminal 9 is installed above the hood 8, and the hood 8 is connected with the wiring terminal 9 clamping groove, so that the installation is simple and the operation is easy.
Further, the terminal copper post 17 is installed to the internally mounted of terminal protective sheath 6, and terminal protective sheath 6 and terminal copper post 17 sealing connection, and the fatigue resistance can have good leakproofness, insulating nature and corrosion resistance well.
Further, a semi-conductive self-adhesive tape 18 is arranged between the branch cable 15 and the terminal copper column 17, and the semi-conductive self-adhesive tape 18 does not influence the conductivity of the semi-conductive layer of the cable.
The working principle is as follows: when the device is used, firstly three copper woven bags 13 are bound on a photovoltaic cable 1 and three branch cables 15 above the photovoltaic cable 1 through insulating tapes 14, after the device is installed, the photovoltaic cable 1 is installed in an insulating cylinder 2, a three-branch cold-shrink sleeve 3 is installed above the insulating cylinder 2, the three branch cables 15 above the photovoltaic cable 1 penetrate through the insulating cylinder 2 and the three-branch cold-shrink sleeve 3, then the three-branch cold-shrink sleeve 3 is sealed by waterproof glue 16, a heat insulation film 10 and a wear-resistant film 11 are installed on the outer side of the insulating cylinder 2, the insulating cylinder 2 is a joint of cable terminal joints, is thicker and is easy to wear, the wear-resistant film 11 plays a role of wear resistance, the heat insulation film 10 plays a good heat insulation effect, the insulating cylinder 2 is prevented from being exposed to the sun to generate dust and generate adhesive cracks, then the three-branch cables 15 are provided with the cold-shrink insulating rods 5, after the device is installed, the cold-shrink insulating rods 5 are sealed and wound with the three, and then, the terminal copper column 17 and the branch cable 15 are wound by a semi-conductive self-adhesive tape 18 in a sealing mode, the branch cable 15 and the terminal copper column 17 are wrapped by the terminal protective sleeve 6 in a sealing mode, finally the wiring terminal 9 is installed on the terminal copper column 17, and the wiring terminal 9 and the terminal copper column 17 are fixed through the hood 8.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.