An integral high temperature resistant cable

Abstract

The utility model discloses an integral high-temperature resistant cable, which relates to the technical field of cables, including a cable body and a shell. The cable body consists of a cable core, a heat-insulating filling, a first reinforced wire harness, a high-temperature resistant layer, a flame-retardant filling, a second reinforced wire harness, an outer protective layer and a sheath corrugated tube. The outer wall of the cable core is fixedly connected with the high-temperature resistant layer, the outer wall of the high-temperature resistant layer is fixedly connected with the outer protective layer, the outer wall of the outer protective layer is sheathed with a sheath corrugated tube, the bottom wall of the inner cavity of the shell is fixedly connected with a damping spring, the top of the damping spring is fixedly connected with a fixing piece, and a shock-absorbing mechanism for supporting the fixing piece is arranged inside the shell. The utility model can effectively reduce the damage caused by vibration at the cable joint, provide shockproof protection, and ensure the service life. The heat dissipated at the cable joint can be dissipated outwardly through the heat dissipation fins, and the evenly arranged heat dissipation fins can effectively increase the heat dissipation area, thereby increasing the heat dissipation efficiency and ensuring the heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an integral high-temperature resistant cable. Background Art

[0002] Cables are usually rope-like cables made of several or several groups of wires twisted together, and are often twisted around a center, with a highly insulating covering layer on the entire outside. Cables are used to connect circuits, electrical appliances, etc. Cables include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wires and insulation layers, and are used to connect circuits, electrical appliances, etc. With the development of society, high-temperature resistant cables are increasingly widely used in various fields. They have excellent properties such as high temperature resistance, strong corrosion resistance, high insulation performance, and strong overload capacity. High-temperature resistant wires and cables are cables that can normally transmit signals or electrical energy at high temperatures.

[0003] After searching, it was found that the Chinese patent with announcement number CN219958632U disclosed a high temperature resistant cable, including wire cores arranged side by side, and the outer surfaces of the three wire cores were all installed with insulation layers. The high temperature resistant cable, through the thermal effect of the current passing through the wire core, the temperature is transferred to the first heat conducting ring through the insulation layer, the shielding layer, the glass fiber layer and the waterproof layer, the heat on the first heat conducting ring is transmitted through the first heat conducting strip and the second heat conducting strip, the heat on the surface of the first heat conducting strip is heat exchanged with the external air through the groove and the pore, the heat on the surface of the second heat conducting strip is transferred to the steel wire through the second heat conducting ring, the heat on the steel wire is heat exchanged with the external air through the heat dissipation silicone film, the contact area with the external air is increased under the action of the heat dissipation silicone film, the heat dissipation effect is improved, and the traditional cable is prevented from having high temperature due to the thermal effect of the current, and even an environment that is easy to produce flames and flames. Once burning occurs and an open flame is generated, the copper wire inside the wire and cable is exposed, causing a short circuit.

[0004] The above utility model has the following problems:

[0005] The lack of supporting structure at the cable joint causes the cable joint to be suspended. When the cable is shallowly buried, due to its close distance to the road surface, when the car is driving on the road, the pressure load of the road surface is transmitted to the pipeline. The shallowly buried pipeline is very easy to rupture under long-term pressure, which causes damage to the entire cable line and shortens its service life. In order to improve the high temperature resistance, a high temperature resistant flame retardant sleeve is usually set on the outside of the conductor, which can provide effective protection when the external temperature is high. However, with the popularization of high-speed charging and high voltage and high current charging operations, the cable joint position will generate heat due to resistance and cannot be dissipated in time, causing the heat-resistant components at the cable joint position to melt and adhere due to high temperature, affecting the service life.

[0006] Therefore, those skilled in the art provide an integrated high temperature resistant cable to solve the problems raised in the above background technology. Utility Model Content

[0007] The purpose of the utility model is to provide an integrated high temperature resistant cable to solve the problems raised in the above background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] An integral high-temperature resistant cable comprises a cable body and a shell, wherein the cable body consists of a cable core, a heat-insulating filling, a first reinforcing wire harness, a high-temperature resistant layer, a flame-retardant filling, a second reinforcing wire harness, an outer sheath and a sheath corrugated tube, the outer wall of the cable core is fixedly connected with the high-temperature resistant layer, the outer wall of the high-temperature resistant layer is fixedly connected with the outer sheath, the outer wall of the outer sheath is sleeved with a sheath corrugated tube, the bottom wall of the inner cavity of the shell is fixedly connected with a damping spring, the top of the damping spring is fixedly connected with a fixing piece, the side wall of the fixing piece is fixedly connected with a fixing ear plate, the fixing piece is fixedly connected with a fixing hoop via the fixing ear plate, the cable body is located between the fixing hoop and the fixing piece, and a shock-absorbing mechanism for supporting the fixing piece is arranged inside the shell.

[0010] As a further solution of the utility model: the shock absorbing mechanism includes a damping spring, a slot plate, a slider, a connecting spring and a connecting rod, the bottom wall of the inner cavity of the shell is fixedly connected to the damping spring, and the top end of the damping spring is fixedly connected to a fixing piece.

[0011] As a further solution of the utility model: a groove plate is fixedly connected to the lower surface of the fixing member, a sliding groove is provided on the side wall of the groove plate, and a sliding block is slidably connected to the inner side wall of the sliding groove.

[0012] As a further solution of the utility model: a connecting spring is fixedly connected between the sliders, and a connecting rod is hinged between the slider and the damping spring.

[0013] As a further solution of the utility model: a heat insulating filling is filled between the cable core and the high temperature resistant layer, a flame retardant filling is filled between the high temperature resistant layer and the outer sheath, a first reinforced wire bundle is arranged evenly in the heat insulating filling, and a second reinforced wire bundle is arranged evenly in the flame retardant filling.

[0014] As a further solution of the utility model: the high temperature resistant layer is made of high temperature flame retardant polyamide material.

[0015] As a further solution of the utility model: the outer protective layer is a silicone coating formed by surface coating of silicone material.

[0016] As a further solution of the utility model: the upper surface of the fixed hoop is fixedly connected with evenly arranged heat dissipation fins, and the heat dissipation fins are formed by stacking and pressing aluminum sheets and copper sheets.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The combination of damping springs, slot plates, sliders, connecting springs and connecting rods is used to support the fixings, which plays a role in shock absorption and buffering of the cable line. The pressure load of the road surface is transmitted to the pipeline, causing the spring inside the damping spring to undergo elastic deformation, absorb part of the energy, and generate a reaction force. At the same time, the internal damper consumes energy through friction and fluid resistance, reducing the energy of the vibration system. Combined with elastic deformation and energy dissipation, the damping spring can effectively reduce the vibration amplitude of the structure and reduce the impact of the impact on the cable connection. Under the action of the damping spring, the damage caused by vibration can be effectively reduced, providing shock protection and ensuring the service life. The high temperature resistant layer made of high temperature flame retardant polyamide material has excellent high temperature tolerance, chemical stability, mechanical strength and electrical insulation performance, can withstand long-term use under high temperature, and is not easy to deform under high temperature conditions. The outer sheath has good acid and alkali resistance, water resistance, abrasion resistance and scratch resistance. It can maintain good physical and chemical properties under high temperature environment, and can still maintain physical state under high temperature conditions. It is insulated by heat insulation filling to avoid rapid conduction of high temperature, and flame retardant filling to avoid burning. The first reinforced harness and the second reinforced harness increase the resistance of the cable body. Tensile strength, the cable core is wrapped by a high temperature resistant layer, an outer protective layer and a sheath corrugated tube in sequence, with good protective performance, effective heat insulation and flame retardancy, high safety factor and long service life. The heat sink fins are made of copper and aluminum sheets superimposed and pressed together, ensuring the tightness of the copper-aluminum combination. The copper sheet absorbs heat quickly and the aluminum sheet dissipates heat quickly, so that the heat sink fins can quickly absorb the heat dissipated from the heat sink layer, making the aluminum sheet dissipate heat faster, and the heat dissipated from the cable joint can be dissipated outward through the heat sink fins. The evenly arranged heat sink fins can effectively increase the heat dissipation area, thereby increasing the heat dissipation efficiency and ensuring the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the structure of an integral high temperature resistant cable.

[0020] Figure 2 The present invention is a cross-sectional view of a cable body in an integral high temperature resistant cable.

[0021] Figure 3 The figure is a schematic diagram of the internal structure of a shell in an integral high-temperature resistant cable.

[0022] Figure 4 The figure is a schematic diagram of the heat dissipation fin structure in an integral high temperature resistant cable.

[0023] In the figure: 1. cable body; 101. cable core; 102. thermal insulation filling; 103. first reinforcement harness; 104. high temperature resistant layer; 105. flame retardant filling; 106. second reinforcement harness; 107. outer sheath; 108. sheath bellows; 2. shell; 3. damping spring; 4. fixing part; 5. fixing ear plate; 6. fixing hoop; 7. cooling fin; 701. aluminum sheet; 702. copper sheet; 8. slot plate; 9. slider; 10. connecting spring; 11. connecting rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] Reference Figure 1 , 3The embodiment provides an integral high temperature resistant cable, including a cable body 1 and a shell 2. The cable body 1 is composed of a cable core 101, a heat insulation filler 102, a first reinforcement harness 103, a high temperature resistant layer 104, a flame retardant filler 105, a second reinforcement harness 106, an outer sheath 107 and a sheath corrugated tube 108. The outer wall of the cable core 101 is fixedly connected to the high temperature resistant layer 104, the outer wall of the high temperature resistant layer 104 is fixedly connected to the outer sheath 107, and the outer wall of the outer sheath 107 is provided with a sheath corrugated tube. The bellows 108, the bottom wall of the inner cavity of the shell 2 is fixedly connected with a damping spring 3, the top of the damping spring 3 is fixedly connected with a fixing member 4, the side wall of the fixing member 4 is fixedly connected with a fixing ear plate 5, the fixing member 4 is fixedly connected with a fixing hoop 6 through the fixing ear plate 5, the cable body 1 is located between the fixing hoop 6 and the fixing member 4, and a shock absorbing mechanism for supporting the fixing member 4 is provided inside the shell 2, the shock absorbing mechanism includes a damping spring 3, a groove plate 8, a slider 9, a connecting spring 10 and a connecting rod 11, the bottom wall of the inner cavity of the shell 2 is fixedly connected with a fixing ear plate 5, the fixing member 4 is fixedly connected with a fixing hoop 6 through the fixing ear plate 5, the cable body 1 is located between the fixing hoop 6 and the fixing member 4, and the shell 2 is provided with a shock absorbing mechanism for supporting the fixing member 4. The shock absorbing mechanism includes a damping spring 3, a groove plate 8, a slider 9, a connecting spring 10 and a connecting rod 11. A damping spring 3 is fixedly connected, a fixing member 4 is fixedly connected to the top of the damping spring 3, a groove plate 8 is fixedly connected to the lower surface of the fixing member 4, a sliding groove is opened on the side wall of the groove plate 8, a slider 9 is slidably connected to the inner wall of the sliding groove, a connecting spring 10 is fixedly connected between the sliders 9, and a connecting rod 11 is hinged between the slider 9 and the damping spring 3; the fixing member 4 is supported by the combination of the damping spring 3, the groove plate 8, the slider 9, the connecting spring 10 and the connecting rod 11, which plays a shock-absorbing and buffering role for the cable line. The pressure load of the road surface is transmitted to the pipeline, so that the spring inside the damping spring 3 undergoes elastic deformation, absorbs part of the energy, and generates a reaction force. At the same time, the internal damper consumes energy through friction and fluid resistance, reduces the energy of the vibration system, and combines elastic deformation and energy dissipation. The damping spring 3 can effectively reduce the vibration amplitude of the structure, reduce the impact on the cable connection, and under the action of the damping spring 3, it can effectively reduce the damage caused by vibration, provide shockproof protection, and ensure the service life.

[0027] Example 2

[0028] Reference Figure 2 and Figure 4This embodiment is based on the previous embodiment, and is different from the previous embodiment in that a heat-insulating filler 102 is filled between the cable core 101 and the high-temperature resistant layer 104, a flame-retardant filler 105 is filled between the high-temperature resistant layer 104 and the outer sheath 107, a uniformly arranged first reinforcing wire harness 103 is arranged in the heat-insulating filler 102, a uniformly arranged second reinforcing wire harness 106 is arranged in the flame-retardant filler 105, the high-temperature resistant layer 104 is made of a high-temperature flame-retardant polyamide material, the outer sheath 107 is a silicone coating formed by surface coating of a silicone material, and the upper surface of the fixed hoop 6 is fixedly connected with uniformly arranged heat dissipation fins 7, and the heat dissipation fins 7 are formed by superimposing and pressing an aluminum sheet 701 and a copper sheet 702; the high-temperature resistant layer 104 made of a high-temperature flame-retardant polyamide material has excellent high-temperature tolerance, chemical stability, mechanical strength and electrical insulation performance, can withstand long-term use at high temperatures, and is not easily deformed under high temperature conditions, and the outer sheath 107 has good acid and alkali resistance, water resistance, abrasion resistance and scratch resistance The cable body 1 has good tensile strength, and can maintain good physical and chemical properties even in a high temperature environment. It can still maintain its physical state under high temperature conditions. The heat insulation filling 102 is used for heat insulation to avoid rapid conduction of high temperature. The flame retardant filling 105 is used to avoid burning. The first reinforced wiring harness 103 and the second reinforced wiring harness 106 are used to increase the tensile strength of the cable body 1. The cable core 101 is wrapped by a high temperature resistant layer 104, an outer protective layer 107 and a sheath corrugated tube 108 in sequence. It has good protective performance, can effectively insulate and flame retardant, has a high safety factor and a long service life. The heat dissipation fins 7 are formed by superimposing and pressing the copper sheet 702 and the aluminum sheet 701 to ensure the tightness of the copper-aluminum combination. The copper sheet 702 absorbs heat quickly and the aluminum sheet 701 dissipates heat quickly, so that the heat dissipation fins 7 can quickly absorb the heat dissipated at the heat dissipation layer, so that the aluminum sheet 701 dissipates heat faster, and the heat dissipated at the cable joint can be dissipated outward through the heat dissipation fins 7. The evenly arranged heat dissipation fins 7 can effectively increase the heat dissipation area, thereby increasing the heat dissipation efficiency and ensuring the heat dissipation effect.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An integral high temperature resistant cable, characterized in that: The invention comprises a cable body (1) and a shell (2), wherein the cable body (1) is composed of a cable core (101), a heat-insulating filler (102), a first reinforcing wire bundle (103), a high-temperature resistant layer (104), a flame-retardant filler (105), a second reinforcing wire bundle (106), an outer sheath (107) and a sheath corrugated tube (108), wherein the outer wall of the cable core (101) is fixedly connected to the high-temperature resistant layer (104), the outer wall of the high-temperature resistant layer (104) is fixedly connected to the outer sheath (107), and the outer sheath ( 107) is provided with a sheath bellows (108) on the outer wall, a damping spring (3) is fixedly connected to the bottom wall of the inner cavity of the shell (2), a fixing piece (4) is fixedly connected to the top of the damping spring (3), a fixing ear plate (5) is fixedly connected to the side wall of the fixing piece (4), the fixing piece (4) is fixedly connected to a fixing hoop (6) via the fixing ear plate (5), the cable body (1) is located between the fixing hoop (6) and the fixing piece (4), and a shock absorbing mechanism for supporting the fixing piece (4) is provided inside the shell (2).

2. The integrated high temperature resistant cable according to claim 1, characterized in that: The shock absorbing mechanism comprises a damping spring (3), a slot plate (8), a slider (9), a connecting spring (10) and a connecting rod (11); the damping spring (3) is fixedly connected to the bottom wall of the inner cavity of the housing (2); and the top end of the damping spring (3) is fixedly connected to a fixing member (4).

3. The integrated high temperature resistant cable according to claim 1, characterized in that: A groove plate (8) is fixedly connected to the lower surface of the fixing member (4), a sliding groove is provided on the side wall of the groove plate (8), and a sliding block (9) is slidably connected to the inner side wall of the sliding groove.

4. The integrated high temperature resistant cable according to claim 2, characterized in that: A connecting spring (10) is fixedly connected between the sliders (9), and a connecting rod (11) is hingedly connected between the slider (9) and the damping spring (3).

5. The integrated high temperature resistant cable according to claim 1, characterized in that: A heat-insulating filler (102) is filled between the cable core (101) and the high-temperature resistant layer (104), a flame-retardant filler (105) is filled between the high-temperature resistant layer (104) and the outer sheath (107), a uniformly arranged first reinforcement wire bundle (103) is arranged in the heat-insulating filler (102), and a uniformly arranged second reinforcement wire bundle (106) is arranged in the flame-retardant filler (105).

6. The integrated high temperature resistant cable according to claim 1, characterized in that: The high temperature resistant layer (104) is made of high temperature flame retardant polyamide material.

7. The integrated high temperature resistant cable according to claim 1, characterized in that: The outer protective layer (107) is a silicone coating formed by surface coating of a silicone material.

8. The integrated high temperature resistant cable according to claim 1, characterized in that: The upper surface of the fixed hoop (6) is fixedly connected with evenly arranged heat dissipation fins (7), and the heat dissipation fins (7) are formed by stacking and pressing together an aluminum sheet (701) and a copper sheet (702).

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