A compression-resistant cable

Abstract

The utility model discloses a pressure-resistant cable, belonging to the technical field of cables, comprising a second protective layer, a receiving cavity is arranged inside the second protective layer, a plurality of cable cores are arranged inside the receiving cavity, a heat-conducting layer and a first protective layer are arranged on the outside of the cable core in sequence, a first inner pressure-resistant layer is arranged on the outside of the second protective layer, a second inner pressure-resistant layer is arranged on the outside of the first inner pressure-resistant layer, a plurality of connecting ribs are arranged between the first inner pressure-resistant layer and the second inner pressure-resistant layer, and a rubber protective layer, a shielding layer and an outer pressure-resistant layer are arranged on the outside of the second inner pressure-resistant layer in sequence. When the utility model is deformed under pressure, the combination of the first inner pressure-resistant layer, the second inner pressure-resistant layer and the connecting ribs can withstand a large force, play a supporting role, and effectively limit the bending degree of the cable; an outer pressure-resistant layer is arranged on the outermost side, which has excellent mechanical shock resistance and wear resistance; the compression resistance of the cable is improved by the cooperation of the two inner pressure-resistant layers and the outer pressure-resistant layer.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a compression-resistant cable. Background Art

[0002] A cable is a device for transmitting electrical energy or signals. It is usually a rope-like cable made up of several or several groups of wires (at least two in each group). Each group of wires is insulated from each other and are often twisted around a center wire. The entire outside is covered with a highly insulating outer layer. The cable has the characteristics of being powered inside and insulated outside.

[0003] Cables need to have good anti-extrusion performance. When external force is applied to the cable, it is used to offset and weaken the extrusion force on the wires in the sheath to prevent the wires from becoming loose, broken, deformed, and other conditions that would adversely affect the performance of the cable. Existing cables have insufficient compression resistance. During the transportation and transmission of electricity, they are often crushed or hit. If the external impact force is too large, it will inevitably cause the insulation layer of the cable core to rupture, which will not only cause a short circuit in the cable and cause safety hazards, but also seriously affect the normal transmission of electricity. Utility Model Content

[0004] The purpose of the utility model is to provide a compression-resistant cable to solve the problem that the existing cables have insufficient compression resistance. In the process of transporting and transmitting electricity, the cables are often crushed or hit. If the impact force from the outside is too large, the insulation layer of the cable core will inevitably rupture, which will not only cause a safety hazard by causing a short circuit in the cable, but also seriously affect the normal transmission of electricity.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model discloses a pressure-resistant cable, comprising a second protective layer, an accommodating cavity is arranged inside the second protective layer, a plurality of cable cores are arranged in the accommodating cavity, a heat-conducting layer and a first protective layer are arranged in sequence on the outside of the cable core, a first inner pressure-resistant layer is arranged on the outside of the second protective layer, a second inner pressure-resistant layer is arranged on the outside of the first inner pressure-resistant layer, a plurality of connecting ribs are arranged between the first inner pressure-resistant layer and the second inner pressure-resistant layer, and a rubber protective layer, a shielding layer and an outer pressure-resistant layer are arranged in sequence on the outside of the second inner pressure-resistant layer.

[0007] Furthermore, the number of the cable cores is set to three.

[0008] Furthermore, a supporting block is provided between the first protective layer and the second protective layer.

[0009] Furthermore, the number of the support blocks is set to three.

[0010] Furthermore, the cross-section of the support block is arranged to be fan-shaped, the outer side of the support block contacts the second protective layer, and the inner side of the support block contacts the first protective layer on the outer sides of two adjacent cable cores.

[0011] Furthermore, a plurality of strip-shaped protrusions are arranged on the outer wall of the outer pressure-resistant layer, and the plurality of strip-shaped protrusions are evenly distributed around the circumference.

[0012] Compared with the prior art, the beneficial technical effects of the utility model are:

[0013] The utility model is provided with a first inner pressure-resistant layer on the outer side of the second protective layer, and a second inner pressure-resistant layer on the outer side of the first inner pressure-resistant layer, and a plurality of connecting ribs are connected between the first inner pressure-resistant layer and the second inner pressure-resistant layer. When the cable is deformed under pressure, the combination of the first inner pressure-resistant layer, the second inner pressure-resistant layer and the connecting ribs can withstand a large force, play a supporting role, and effectively limit the bending degree of the cable to avoid damage to the cable body; an outer pressure-resistant layer is arranged on the outermost side, and a plurality of strip-shaped protrusions are connected to the outer wall of the outer pressure-resistant layer, which, on the one hand, increases the heat dissipation area, which is beneficial to the heat dissipation of the cable, and on the other hand, has excellent resistance to mechanical impact and wear, and increases the overall pressure resistance; the pressure resistance of the cable is improved by the cooperation of the two inner pressure-resistant layers and the outer pressure-resistant layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the compression-resistant cable of the utility model;

[0016] Figure 2 It is a cross-sectional view of the compression-resistant cable of the utility model.

[0017] Explanation of the accompanying drawings: 1. cable core; 2. heat conductive layer; 3. first protective layer; 4. support block; 5. second protective layer; 6. first inner pressure-resistant layer; 7. second inner pressure-resistant layer; 8. connecting ribs; 9. rubber protective layer; 10. shielding layer; 11. outer pressure-resistant layer; 11-1. strip-shaped protrusion. DETAILED DESCRIPTION

[0018] like Figure 1-2As shown, a compression-resistant cable comprises a second protective layer 5, wherein an accommodating cavity is arranged inside the second protective layer 5, wherein a plurality of cable cores 1 are installed in the accommodating cavity, wherein a heat-conducting layer 2 and a first protective layer 3 are sequentially arranged on the outer side of the cable core 1, wherein the heat-conducting layer 2 is made of heat-conducting silicone, and the first protective layer 3 is made of rubber. By arranging the heat-conducting layer 2 and the first protective layer 3 on the surface of the cable core 1, on the one hand, it is convenient to conduct away the heat generated by the cable core 1, thereby achieving a heat dissipation effect, and on the other hand, the first protective layer 3 provides a layer of protection for the cable core 1, thereby improving the protection effect on the cable core 1, and the first inner protective layer 3 is arranged on the outer side of the second protective layer 5. Pressure-resistant layer 6, a second inner pressure-resistant layer 7 is installed on the outer side of the first inner pressure-resistant layer 6, and a number of connecting ribs 8 are connected between the first inner pressure-resistant layer 6 and the second inner pressure-resistant layer 7. When the cable is compressed and deformed, the combination of the first inner pressure-resistant layer 6, the second inner pressure-resistant layer 7 and the connecting ribs 8 can withstand a large force and play a supporting role, which effectively limits the bending degree of the cable and avoids damage to the cable body. A rubber protective layer 9, a shielding layer 10 and an outer pressure-resistant layer 11 are installed on the outer side of the second inner pressure-resistant layer 7 in sequence. The shielding layer 10 is woven from ultra-fine copper wire. The main function of the shielding layer 10 is to make the outer surface electric field uniform and protect the cable from damage.

[0019] Specifically, the number of the cable cores 1 is set to three.

[0020] A support block 4 is also arranged between the first protective layer 3 and the second protective layer 5; the number of the support blocks 4 is set to three; the cross-section of the support block 4 is set to be fan-shaped, the outer side of the support block 4 is in contact with the second protective layer 5, and the inner side of the support block 4 is in contact with the first protective layer 3 on the outer sides of two adjacent cable cores 1; the three cable cores 1 are supported by arranging the support blocks 4 to prevent the cable cores 1 from shifting and avoiding shaking and scratching of the cable cores 1.

[0021] A plurality of strip-shaped protrusions 11-1 are connected to the outer wall of the outer pressure-resistant layer 11, and the plurality of strip-shaped protrusions 11-1 are evenly distributed around the circumference; on the one hand, the strip-shaped protrusions 11-1 increase the heat dissipation area, which is beneficial to the heat dissipation of the cable; on the other hand, they have excellent resistance to mechanical impact and wear, thereby increasing the overall pressure resistance.

[0022] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A compression-resistant cable, characterized in that: The invention comprises a second protective layer (5), wherein a receiving cavity is arranged inside the second protective layer (5), a plurality of cable cores (1) are arranged inside the receiving cavity, a heat conducting layer (2) and a first protective layer (3) are arranged in sequence on the outer side of the cable core (1), a first inner pressure-resistant layer (6) is arranged on the outer side of the second protective layer (5), a second inner pressure-resistant layer (7) is arranged on the outer side of the first inner pressure-resistant layer (6), a plurality of connecting ribs (8) are arranged between the first inner pressure-resistant layer (6) and the second inner pressure-resistant layer (7), and a rubber protective layer (9), a shielding layer (10) and an outer pressure-resistant layer (11) are arranged in sequence on the outer side of the second inner pressure-resistant layer (7).

2. The compression-resistant cable according to claim 1, characterized in that: The number of the cable cores (1) is set to three.

3. The compression-resistant cable according to claim 2, characterized in that: A support block (4) is also provided between the first protective layer (3) and the second protective layer (5).

4. The compression-resistant cable according to claim 3, characterized in that: The number of the supporting blocks (4) is set to three.

5. The compression-resistant cable according to claim 3, characterized in that: The cross section of the support block (4) is arranged to be fan-shaped, the outer side of the support block (4) contacts the second protective layer (5), and the inner side of the support block (4) contacts the first protective layer (3) on the outer sides of two adjacent cable cores (1).

6. The compression-resistant cable according to claim 1, characterized in that: A plurality of strip-shaped protrusions (11-1) are arranged on the outer wall of the outer pressure-resistant layer (11), and the plurality of strip-shaped protrusions (11-1) are evenly distributed around the circumference.

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