Flat cable structure with optimized fireproof performance

Abstract

The utility model discloses a flat cable structure with optimized fireproof performance, which comprises cable cores, a blocking layer, a flame-retardant layer and a wear-resistant layer, the cable cores are arranged in parallel, and a filling layer is arranged between the cable cores; the blocking layer is arranged outside the filling layer; the blocking layers are arranged at intervals, and grooves are formed between the blocking layers; the flame-retardant layer is arranged between the blocking layer and the filling layer; and a wear-resistant layer is arranged outside the blocking layer. According to the utility model, the plurality of accommodating cavities capable of accommodating inert gases are arranged outside the cable, so that when the cable is burnt through, the inert gases in the accommodating cavities can effectively play a better fireproof and flame-retardant effect when the cable is burnt through, and meanwhile, the accommodating cavities separate the inert gases, so that the inert gases are prevented from being discharged at one time, and the service life of the cable is prolonged. Therefore, the overall fireproof performance of the cable is reduced.

Description

Technical Field

[0001] The utility model relates to the field of flat cables, in particular to a flat cable structure with optimized fireproof performance. Background Art

[0002] Flat cables are produced by standard organizations and are suitable for mobile electrical equipment with an AC rated voltage of 450V / 70V and below. The flat structure is particularly suitable for occasions with frequent bending, without kinking, and folding neatly, such as driving. The three major product categories of YB, YBF, and YBZ can meet the needs of various occasions and are suitable for electrical connections between mobile electrical equipment in harsh environments such as power generation, metallurgy, chemical industry, and ports; ordinary flat cables need to be used in places with complex environments.

[0003] Most existing fire-resistant flat cables are protected by insulating layers inside and outside the cables. The protective layers insulate the fire source, but most of the time the cables will still be burned through, which cannot directly reduce the fire intensity. At the same time, when a connected cavity filled with inert gas is set inside the cable, when a part of the cable burns, the inert gas is directly and completely discharged from the burnt-through gap after burning, which greatly reduces the fire resistance of the entire cable. Utility Model Content

[0004] An object of the present invention is to provide a flat cable structure with optimized fire resistance that at least solves any aspect of the above technical problems.

[0005] A further object of the present invention is to avoid burning through the cable and to prevent the complete release of inert gas, which would reduce the overall fire resistance of the cable.

[0006] Another further object of the present invention is to improve the overall fire protection effect of the cable.

[0007] In particular, the present invention provides a flat cable structure with optimized fire resistance, comprising cable cores, the cable cores being arranged in parallel, and a filling layer being provided between the cable cores;

[0008] A blocking layer, wherein the blocking layer is arranged outside the filling layer; and the blocking layers are arranged at intervals, and grooves are formed between the blocking layers;

[0009] a flame retardant layer, the flame retardant layer being disposed between the blocking layer and the filling layer;

[0010] A wear-resistant layer is provided on the outside of the blocking layer.

[0011] Furthermore, the width of the groove is 0.5 cm-2 cm.

[0012] Furthermore, the blocking layer has a width of 2cm-4cm.

[0013] Furthermore, the groove and the wear-resistant layer form a receiving cavity, and the receiving cavity is filled with an inert gas.

[0014] Technical effects and advantages of this utility model:

[0015] The utility model provides a plurality of accommodating cavities for accommodating inert gas on the outside of the cable. When the cable burns through, the inert gas in the accommodating cavity can effectively play a good fire retardant effect on the cable when it burns. At the same time, the accommodating cavity separates the inert gas to prevent the inert gas from being released all at once, thereby reducing the overall fire resistance of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the inner layer structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the cross-sectional structure in the AA direction.

[0021] In the figure: 1. wear-resistant layer, 2. blocking layer, 3. filling layer, 4. cable core, 5. accommodating cavity, 6. flame retardant layer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Figure 1 This is a schematic diagram of the structure of the utility model. Figure 2 This is a schematic diagram of the inner layer structure of the utility model. Figure 3 It is a schematic diagram of the top structure of the utility model. Figure 4 For this utility model Figure 3 Schematic diagram of the cross-sectional structure in the AA direction.

[0024] The solution of this embodiment provides a flat cable structure with optimized fire resistance, including a cable core 4, a blocking layer 2, a flame retardant layer 6, and a wear-resistant layer 1. The cable cores 4 are arranged in parallel, and a filling layer 3 is arranged between the cable cores 4; the blocking layer 2 is arranged on the outside of the filling layer 3; and the blocking layers 2 are arranged at intervals, and grooves are formed between the blocking layers 2; the flame retardant layer 6 is arranged between the blocking layer 2 and the filling layer 3, and the barrier layer provides secondary protection; a wear-resistant layer 1 is provided on the outside of the blocking layer 2, and a accommodating cavity 5 is formed by the groove and the wear-resistant layer 1, and the accommodating cavity 5 is filled with inert gas. When the outer surface of the cable is burned through, the inert gas in the accommodating cavity 5 is released to flame retard the burning part. At the same time, the barrier layer is provided to prevent the fire source and heat from invading the interior of the cable core 4.

[0025] It should be further explained that the width of the groove is 0.5 cm-2 cm, and the width of the groove is 1 cm.

[0026] It should be further explained that the width of the blocking layer 2 is 2 cm-4 cm, and the width of the partition layer is 2 cm.

[0027] Working principle of this utility model:

[0028] During use, the utility model provides a plurality of accommodating cavities 5 on the outside of the cable that can accommodate inert gas. When the cable burns through, the inert gas in the accommodating cavity 5 can effectively provide a good fire retardant effect on the cable when it burns. At the same time, the accommodating cavity 5 separates the inert gas to prevent the inert gas from being released all at once, thereby reducing the overall fire resistance of the cable.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Flat cable structure with optimized fire resistance, characterized by: include, Cable cores (4), the cable cores (4) are arranged in parallel, and a filling layer (3) is provided between the cable cores (4); A blocking layer (2), the blocking layer (2) being arranged outside the filling layer (3); and the blocking layers (2) being arranged at intervals, with grooves formed between the blocking layers (2); a flame retardant layer (6), the flame retardant layer (6) being arranged between the blocking layer (2) and the filling layer (3); A wear-resistant layer (1) is provided on the outside of the blocking layer (2).

2. The flat cable structure with optimized fire resistance according to claim 1, characterized in that: The width of the groove is 0.5 cm to 2 cm.

3. The flat cable structure with optimized fire resistance according to claim 1, characterized in that: The width of the blocking layer (2) is 2 cm to 4 cm.

4. The flat cable structure with optimized fire resistance according to claim 1, characterized in that: The groove and the wear-resistant layer (1) form an accommodating cavity (5), and the accommodating cavity (5) is filled with an inert gas.

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