CN-122000143-A - Production process of high-power high-temperature-resistant cable and cable

CN122000143ACN 122000143 ACN122000143 ACN 122000143ACN-122000143-A

Abstract

The invention discloses a cable structure, which aims to provide a production process of a high-power high-temperature-resistant cable and a cable, wherein the production process is convenient to process and good in heat dissipation effect, and can avoid overhigh temperature while conveying high-power current, the technical scheme is characterized in that a heat dissipation net structure is arranged between an inner core of the cable and an outer shell, the heat dissipation net structure can form an air circulation structure in the cable, and an air channel between the inside of the cable and the outside of the cable is formed through a vent hole arranged on an outer sleeve body, the heat concentration in the cable is avoided, the air circulation structure is formed by arranging the middle layer used for supporting in the cable and connecting the middle layer through the annular pipes, a large number of holes used for passing air flow are formed in the process of supporting the cable, the installation is simple, the production cost is low, the supporting effect is good, and the compression resistance of the cable in the radial direction is guaranteed.

Inventors

LIN XIANHONG
WANG ZHIJIE
WANG XING
ZHU PING

Assignees

浙江时光电缆有限公司

Dates

Publication Date: 20260508
Application Date: 20260409

Claims (7)

1. S1, acquiring diameter data and length data of a cable based on a service scene of the cable, acquiring the diameter of an inner core of the cable based on the power of current to be conducted, and preparing the corresponding inner core of the cable; S2, arranging a shielding layer on the outer surface of the cable inner core, and calculating parameters outside the shielding layer to conveniently arrange a buffer heat dissipation layer; s3, coating a first inner layer and a second inner layer on the outer side of the shielding layer, and mounting a heat dissipation net structure on the surface of the first inner layer before coating the second inner layer; s4, after the heat dissipation layer is installed, forming the outer sleeve body by adopting a melt extruder; S31, taking a plurality of annular pipe structures, and connecting all the annular pipes in an X-shaped structure in a staggered way to form a straight connecting strip; s32, coating rubber on the surfaces of the connecting strips, and after coating, arranging reinforcing colloid at the straight pipe positions of each annular pipe structure, wherein the straight pipe provided with the reinforcing colloid is positioned at the part of the connecting strip formed by connecting and positioned at the lower end relatively; S33, each connecting strip is arranged along the length direction of the cable, is connected with the first inner layer through the straight pipe position of each annular pipe structure, and surrounds and forms an air flow channel between two adjacent connecting strips; And S34, after the connecting strips are connected with the first inner layer, setting reinforcing colloid at the straight pipe position at the other end of each annular pipe structure, and coating the connecting strips with the second inner layer.
2. The process for producing the high-power high-temperature-resistant cable according to claim 1, wherein after the outer sleeve body is molded, vent holes are formed in the surface of the outer sleeve body, and the positions of the vent holes are matched with the positions of channels formed by the connecting strips in a surrounding mode.
3. The cable based on the production technology of the high-power high-temperature-resistant cable according to claims 1-2 is characterized by comprising an inner core (1) and an outer sleeve (2) sleeved outside the inner core (1), a heat dissipation net structure (3) is further arranged between the inner core (1) and the outer sleeve (2), the heat dissipation net comprises two inner layers, the two inner layers are a first inner layer (31) and a second inner layer (32) which are arranged at intervals, a plurality of raised strips are further arranged on one side of the first inner layer (31), the raised strips face the inner core (1) of the cable when the first inner layer (31) is sleeved, and an intermediate layer (33) is further arranged between the first inner layer (31) and the second inner layer (32).
4. A cable formed by a process for producing a high-power and high-temperature-resistant cable according to claim 3, wherein the intermediate layer (33) is bonded between the two inner layers, and the intermediate layer (33) comprises a plurality of connecting strips (4) uniformly arranged along the circumferential direction of the cable core (1) and arranged along the length direction of the cable, and the connecting strips (4) are formed by connecting a plurality of annular tubes (41) with each other, so that the cable can be bent along the radial direction after the connecting strips (4) are installed.
5. The cable formed by the production process of the high-power high-temperature-resistant cable according to claim 4, wherein the annular tube (41) comprises two semicircular rings which are oppositely arranged and a connecting tube which is arranged between the semicircular rings, and each annular tube (41) forms an X-shaped structure between two inner layers after being connected with each other.
6. The cable formed by the production process of the high-power high-temperature-resistant cable according to claim 5, wherein gaskets (42) are further arranged on the connecting pipes of the annular pipes (41), and the connecting strip (4) is attached to the first inner layer (31) and the second inner layer (32) through the gaskets (42).
7. The cable formed by the production process of the high-power high-temperature-resistant cable according to claim 6, wherein the outer sleeve body (2) is further provided with vent holes (5), the vent holes (5) are configured to be arranged at two ends of the cable and at least one vent hole (5) is arranged in the middle of the cable, the positions of the vent holes (5) are arranged on airflow channels formed by two adjacent connecting strips (4), and the heat dissipation net structure (3) realizes heat exchange with gas outside the cable through the vent holes (5).

Description

Production process of high-power high-temperature-resistant cable and cable Technical Field The invention relates to a cable structure, in particular to a production process of a high-power high-temperature-resistant cable and the cable. Background Along with the development of new energy technology, the number of electric vehicles driven by electric power is obviously increased, in order to avoid the shortage of electric quantity in the running process of the electric vehicles, a charging pile is required to be arranged in a city, the charging pile is a charging device for supplementing electric quantity for the electric vehicles, the function of the charging pile is similar to that of an oiling machine in a gas station, the charging pile can be fixed on the ground or a wall and is installed in a parking lot charging station of a public building and a residential community, the charging pile generally provides two charging modes of conventional charging and quick charging, and the charging pile can charge electric vehicles of various types according to different voltage levels. In order to reduce the time that needs when charging, improve electric automobile's charging efficiency, the electric pile upgrades to high-power gradually, quick charge's direction, but when adopting high-power charging, the cable needs to bear the high temperature load that the heavy current brought, face complicated operating mode such as outdoor friction simultaneously, crooked installation, fire risk, put forward harsh requirements to the high temperature resistant of cable oversheath, fire-retardant, wear-resisting and toughness, at present, cooling down the cable through setting up the cooling layer between the cable inner core, but whole radiating effect is relatively poor, and need additionally install radiating structure when processing, increase the cost of production, reduce the efficiency of processing, and in order to guarantee the stability of electric current, generally need laminating multiunit cable inner core each other, further reduce radiating performance, lead to the life of cable to reducing. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide a production process of a high-power high-temperature-resistant cable and the cable, wherein the production process is convenient to process and good in heat dissipation effect, and can be used for conveying high-power current and avoiding overhigh temperature. S1, acquiring diameter data and length data of a cable based on a use scene of the cable, acquiring the diameter of an inner core of the cable based on the power of current to be conducted, and preparing the corresponding inner core of the cable; S2, arranging a shielding layer on the outer surface of the cable inner core, and calculating parameters outside the shielding layer to conveniently arrange a buffer heat dissipation layer; s3, coating a first inner layer and a second inner layer on the outer side of the shielding layer, and mounting a heat dissipation net structure on the surface of the first inner layer before coating the second inner layer; s4, after the heat dissipation layer is installed, forming the outer sleeve body by adopting a melt extruder; S31, taking a plurality of annular pipe structures, and connecting all the annular pipes in an X-shaped structure in a staggered way to form a straight connecting strip; s32, coating rubber on the surfaces of the connecting strips, and after coating, arranging reinforcing colloid at the straight pipe positions of each annular pipe structure, wherein the straight pipe provided with the reinforcing colloid is positioned at the part of the connecting strip formed by connecting and positioned at the lower end relatively; S33, each connecting strip is arranged along the length direction of the cable, is connected with the first inner layer through the straight pipe position of each annular pipe structure, and surrounds and forms an air flow channel between two adjacent connecting strips; And S34, after the connecting strips are connected with the first inner layer, setting reinforcing colloid at the straight pipe position at the other end of each annular pipe structure, and coating the connecting strips with the second inner layer. The invention further provides that after the outer shell is molded, the surface of the outer shell is provided with the vent hole, and the position of the vent hole is matched with the position of a channel formed by surrounding the connecting strip. The application also discloses a cable formed by the production process of the high-power high-temperature-resistant cable, the cable comprises an inner core and an outer sleeve body sleeved outside the inner core, a heat dissipation net structure is further arranged between the inner core and the outer sleeve body, the heat dissipation net comprises two inner layers, the two inner layers are a first inner layer and a second inner layer w