Fireproof anti-overload polyurethane sheath energy storage cable

Abstract

The utility model discloses a fireproof anti-overload polyurethane sheath energy storage cable, which comprises a conductor, a mica tape wrapping layer wrapped on the conductor, an insulating layer extruded on the mica tape wrapping layer and an outer sheath extruded on the insulating layer, and is characterized in that the mica tape wrapping layer is formed by wrapping a paper coating mica tape; the insulating layer is formed by extruding a polyether sulfone material, and the outer protective layer is formed by extruding a polyurethane material. According to the cable provided by the utility model, the cold-drawn high-temperature-resistant aluminum alloy wires are used as the conductors, and under the cooperation of the mica tape wrapping layer, the insulating layer and the outer protective layer, the environment adaptability of the cable can be improved on the premise of meeting the fire-resistant and overload-resistant requirements of the cable; the energy storage cable protection device is simple in overall structure, reasonable in design and worthy of popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a fire-resistant and overload-resistant polyurethane sheathed energy storage cable. Background Art

[0002] As a vital supporting industry for the national economy, the power cable industry is seeing increasing use of control cables with the rapid growth of the national economy. Power cables, used for transmitting and distributing electrical energy, are now widely used in various fields and are an indispensable transmission medium for both industrial and civilian applications. With technological advancements and market changes, the demand for power cables is also growing rapidly.

[0003] Energy storage cables are characterized by their need to transmit relatively large currents and maintain high-power charge and discharge capabilities for extended periods. High currents can result in high temperature rises, so the materials used must possess excellent heat resistance. With the rapid development of the new energy industry, supporting energy storage systems have also emerged, and the energy storage cables connecting various devices and systems are in short supply. Using conventional cables often leads to overheating and melting due to unstable output or input voltages, cable overload, and systemic failures or accidents. Therefore, developing a fire-resistant and overload-resistant energy storage cable is essential to prevent similar incidents.

[0004] A search revealed that patent document CN 219738606 U, with authorization publication number CN 214753065 U, discloses a flexible, fire-retardant energy storage cable, while patent document CN 214753065 U, with authorization publication number CN 214753065 U, discloses a 125°C tensile-resistant, heat-resistant, flame-retardant, and environmentally friendly energy storage cable. The two retrieved patent documents each provide a cable that meets application requirements from different perspectives. To address the current market shortage of energy storage cables, and based on their characteristics, in order to enhance enterprise competitiveness, adapt to market demand, and increase market share, a new energy storage cable, different from that disclosed in the prior art, is proposed to meet these requirements. Utility Model Content

[0005] The technical problem to be solved by the present invention is to address the problems existing in the background technology, thereby providing a stable performance energy storage cable. By using this energy storage cable, while meeting the fire resistance and overload resistance requirements of the cable, the cable's environmental adaptability can be improved, so as to better protect the normal operation of the energy storage cable and the system equipment in which it is located. Specifically, it is a fire-resistant and overload-resistant polyurethane sheathed energy storage cable.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a fire-resistant and overload-resistant polyurethane sheathed energy storage cable, comprising the above-mentioned conductor, and a mica tape wrapping layer wrapped on the conductor, an insulating layer extruded on the mica tape wrapping layer, and an outer sheath extruded on the insulating layer, wherein the mica tape wrapping layer is formed by wrapping mica tape with a paper coating; the insulating layer is formed by extruding a polyethersulfone material, and the outer sheath is formed by extruding a polyurethane material.

[0007] Furthermore, the fire-resistant and overload-resistant polyurethane sheathed energy storage cable described in the utility model is adopted, and the conductor is formed by hinged heat-resistant aluminum alloy conductors, and the heat-resistant aluminum alloy conductors are heat-resistant deformation aluminum alloy conductors.

[0008] Furthermore, in the fire-resistant and overload-resistant polyurethane sheathed energy storage cable described in the utility model, the mica tape wrapping layer is formed by wrapping two layers of overlapping paper-coated mica tape.

[0009] The utility model discloses a fire-resistant and overload-resistant polyurethane sheathed energy storage cable. The conductor is formed by hinged heat-resistant deformation aluminum alloy conductors. The heat-resistant deformation aluminum alloy conductors are cold-drawn high-temperature resistant aluminum alloy wires. The high-temperature resistant aluminum alloy wires can be used at higher temperatures, and the non-softened aluminum alloy can work safely for a long time at temperatures of 150 to 300°C, thereby avoiding the problem of damage to the cable core in a high-temperature environment. A mica tape wrapping layer, an insulating layer and an outer sheath are provided outside the conductor. The cooperation of the conductor with the mica tape wrapping layer, the insulating layer and the outer sheath can improve the cable's environmental adaptability while meeting the cable's fire resistance and overload resistance requirements, so as to better protect the normal operation of the energy storage cable and the system equipment in which it is located.

[0010] It can be seen that the cable described in the present invention uses cold-drawn high-temperature resistant aluminum alloy wire as a conductor, and with the cooperation of mica tape wrapping, insulation layer and outer sheath, while meeting the fire resistance and overload resistance requirements of the cable, it can improve the cable's environmental adaptability, so as to better protect the normal operation of the energy storage cable and the system equipment in which it is located. Its overall structure is simple, the design is reasonable, and it is worthy of promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be described in further detail below with reference to the accompanying drawings.

[0012] Figure 1 It is a structural diagram of the present utility model.

[0013] As shown in the figure: 1-conductor, 2-mica tape wrapping layer, 3-insulation layer, 4-outer sheath. DETAILED DESCRIPTION

[0014] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0015] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification for the understanding and reading of those familiar with this technology. They are not used to limit the conditions for the implementation of this utility model and therefore have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model without affecting the efficacy and purpose of the utility model. At the same time, the terms such as "upper", "lower", "left", "right", etc. quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of this utility model without substantially changing the technical content.

[0016] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "provided with" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0017] It should be noted that the term "comprise" or any other variation is intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0018] like Figure 1 As shown, the fire-resistant and overload-resistant polyurethane sheathed energy storage cable described in the present invention includes the conductor 1, and the mica tape wrapping layer 2 coated on the conductor 1, the insulating layer 3 extruded on the mica tape wrapping layer 2, and the outer sheath 4 extruded on the insulating layer 3, wherein the conductor 1 is formed by hingedly connecting heat-resistant aluminum alloy conductors, the heat-resistant aluminum alloy conductors are heat-resistant deformation-resistant aluminum alloy conductors, the mica tape wrapping layer 2 is formed by wrapping paper-coated mica tape; the insulating layer 3 is extruded from polyethersulfone material, and the outer sheath 4 is extruded from polyurethane material.

[0019] The utility model adopts a fire-resistant and overload-resistant polyurethane sheathed energy storage cable. In the specific production process, the mica tape wrapping layer 2 is formed by wrapping two layers of paper-coated mica tape in an overlapping manner. Since the conductor 1 is hinged with a heat-resistant deformation aluminum alloy conductor, the heat-resistant deformation aluminum alloy conductor adopts a cold-drawn high-temperature resistant aluminum alloy wire. The high-temperature resistant aluminum alloy wire can be used at a higher temperature, and the non-softened aluminum alloy can work safely for a long time at a temperature of 150 to 300°C, thereby avoiding the problem of damage to the cable core in a high-temperature environment. A mica tape wrapping layer 2, an insulating layer 3 and an outer sheath 4 are provided outside the conductor 1. The mica tape wrapping layer (2) is formed by wrapping two layers of paper-coated mica tape in an overlapping manner. Since the paper-coated mica has better fire resistance and flexibility than conventional mica tape, the wrapping The appearance after wrapping is smooth; the insulation layer 3 is made of extruded polyethersulfone (PES). Since polyethersulfone (PES) insulated wire has excellent heat resistance, physical and mechanical properties, electrical insulation properties, and extrusion moldability, it has the outstanding advantages of being able to maintain stable performance in continuous use under high temperature and in environments with rapid temperature changes: the heat deformation temperature is 200-220 degrees, and the continuous use temperature is 180-200 degrees; the outer sheath 4 is made of extruded polyurethane material. Since polyurethane (PUR) has many excellent functions such as excellent oil resistance, good toughness, wear resistance, cold resistance (low temperature resistance), water resistance, aging resistance, acid and alkali resistance, weather resistance, long service life, UV resistance and energy release, it is suitable for oil pollution, low temperature and other harsh environments, and is the best choice for the inner and outer sheath materials of energy storage cables. The combination of the conductor 1 and the mica tape wrapping layer 2, the insulation layer 3 and the outer sheath 4 can improve the cable's environmental adaptability while meeting the cable's fire resistance and overload resistance requirements, so as to better protect the normal operation of the energy storage cable and the system equipment in which it is located.

[0020] To sum up, the cable described in the present invention uses a cold-drawn high-temperature resistant aluminum alloy wire as the conductor 1, and with the cooperation of the mica tape wrapping layer 2, the insulation layer 3 and the outer sheath 4, while meeting the fire resistance and overload resistance requirements of the cable, it can improve the cable's environmental adaptability, so as to better protect the normal operation of the energy storage cable and the system equipment in which it is located. Its overall structure is simple, the design is reasonable, and it is worthy of promotion and use.

[0021] Other aspects of the present invention that are not described in detail are all conventional technologies known to those skilled in the art.

[0022] The protection scope of the present invention is not limited to the technical solutions disclosed in the specific implementation methods. The above description is only a preferred implementation method of the present invention and does not limit the present invention. Any minor modifications, equivalent replacements and improvements made based on the technical solutions of the present invention should be included in the protection scope of the technical solutions of the present invention.

Claims

1. A fire-resistant and overload-resistant polyurethane sheathed energy storage cable, characterized by: The invention comprises the conductor (1), a mica tape wrapping layer (2) wrapped on the conductor (1), an insulating layer (3) extruded on the mica tape wrapping layer (2), and an outer sheath (4) extruded on the insulating layer (3), wherein the mica tape wrapping layer (2) is formed by wrapping a mica tape with a paper coating; the insulating layer (3) is formed by extruding a polyethersulfone material, and the outer sheath (4) is formed by extruding a polyurethane material; wherein the conductor (1) is formed by hingedly wrapping a heat-resistant aluminum alloy conductor, and the heat-resistant aluminum alloy conductor is a heat-resistant deformation aluminum alloy conductor; and the mica tape wrapping layer (2) is formed by wrapping a double layer of paper-coated mica tape with overlapping layers.

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