Rail transit control cable with isolated heat dissipation structure

Abstract

The utility model discloses a control cable with isolated heat radiation structure for rail transit. It relates to the technical field of control cable, and adopts including radiator, heat conducting layer and heat dissipation layer, the inside of radiator is provided with heat dissipation guide column, the circumference of radiator is provided with a plurality of isolation plates in annular, the periphery of isolation plate is provided with oxygen barrier layer. The utility model discloses through setting up the radiator in the control cable center, the inside of radiator is provided with heat dissipation guide column, through radiator, the heat of cable core is transmitted to heat dissipation guide column, and heat dissipation guide column is made of silicon carbide ceramic material, can heat dissipation to cable core, through setting up a plurality of isolation plates in annular in the circumference of radiator, through isolation plate, a plurality of isolation grooves are formed between radiator and oxygen barrier layer, and cable core is arranged in the inside of isolation groove, thereby can install the isolation to cable core, avoid the mutual adhesion of cable core, thereby cause the phenomenon of friction static electricity to occur.

Description

Technical Field

[0001] This utility model relates to the field of control cable technology, specifically to a control cable for rail transit with an isolation and heat dissipation structure. Background Technology

[0002] Rail transit refers to a type of transportation vehicle or system that requires vehicles to run on specific tracks. Urban rail transit is defined as "a general term for rapid, high-capacity public transportation that is typically powered by electricity and operates using a wheel-rail system." With the diversified development of train and railway technology, rail transit has taken on increasingly more types, not only covering long-distance land transportation but also being widely used in short- and medium-distance urban public transportation. Common rail transit systems include traditional railways (ordinary railways, intercity railways, and suburban railways), subways, light rail, and trams. In addition, there are new types of rail transit such as maglev rail systems and monorail systems.

[0003] Traditional rail transit control cables generate heat when the internal conductor wires are in operation. However, the control cables themselves do not have a heat dissipation structure. The heat generated by the cable core accumulates in the control cable and cannot be quickly dissipated, thus affecting the heat dissipation effect of the control cable. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a control cable for rail transit with an isolation and heat dissipation structure, thus solving the problems raised in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A control cable for rail transit with an isolation and heat dissipation structure includes a heat sink, a heat-conducting layer, and a heat dissipation layer. The heat sink has heat dissipation guide pillars inside. Several isolation plates are arranged in a ring around the circumference of the heat sink. An oxygen barrier layer is arranged around the isolation plates. Several isolation grooves are formed between the heat sink and the oxygen barrier layer through the isolation plates. A cable core is arranged inside the isolation groove. The cable core includes a conductor. An inorganic mineral insulation layer is arranged around the conductor. A conductor shielding layer is arranged around the inorganic mineral insulation layer. A fire-resistant filling layer is filled between the heat sink, isolation plates, cable core, and oxygen barrier layer. A heat-resistant wrapping layer is arranged around the oxygen barrier layer. A wrapping tape is arranged around the heat-resistant wrapping layer. A heat-conducting layer is arranged around the wrapping tape. A heat dissipation layer is arranged around the heat-conducting layer. An armor layer is arranged around the heat dissipation layer. Several heat-absorbing protrusions are arranged in a ring on the surface of the armor layer. Several heat dissipation holes are formed on the surface of the heat-absorbing protrusions.

[0006] Preferably, the thermal conductive layer includes thermal grease, the outer wall of the thermal grease is provided with tin foil, and a plurality of thermal conductive sheets are provided between the wrapping tape and the heat dissipation layer, the thermal conductive sheets penetrating through the thermal grease and the tin foil.

[0007] Preferably, the surface of the heat dissipation layer is provided with a plurality of ventilation slots, and the inner wall of the ventilation slots is provided with a plurality of heat dissipation fins, which are arranged in a wavy shape.

[0008] Preferably, the heat dissipation guide pillar is made of silicon carbide ceramic material.

[0009] Preferably, the fireproof filling layer is made of glass fiber filaments.

[0010] Preferably, the oxygen barrier layer is made of ceramicized polyolefin flame-retardant and refractory material.

[0011] Preferably, the heat-resistant coating layer is made of polytetrafluoroethylene (PTFE).

[0012] Preferably, the armor layer is made of tin-plated copper mesh.

[0013] Preferably, the heat-absorbing bump is made of copper.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model provides a rail transit control cable with an isolated heat dissipation structure. A heat sink is located at the center of the control cable, and heat dissipation guide pillars are installed inside the heat sink. The heat sink transfers the heat generated by the cable core to the heat dissipation guide pillars, which are made of silicon carbide ceramic material to dissipate heat from the cable core. Several isolation plates are arranged in a ring around the periphery of the heat sink, forming several isolation grooves between the heat sink and the oxygen barrier layer. The cable core is installed inside the isolation grooves, thus isolating the cable core and preventing it from sticking together and causing static electricity. Fire-resistant material is filled between the heat sink, isolation plates, cable core, and oxygen barrier layer. The fireproof filling layer is made of glass fiber, which has high high temperature resistance, giving the control cable a high melting point and heat resistance. By setting an oxygen barrier layer made of ceramicized polyolefin flame-retardant and fire-resistant material, a ceramic body with a certain strength can be quickly formed in flames and high-temperature environments, which plays a role in flame retardancy, heat insulation and oxygen barrier for the control cable. By setting a heat-resistant wrapping layer made of polytetrafluoroethylene material, the insulation protection and high temperature resistance of the control cable can be improved, preventing the control cable from melting or being damaged in high-temperature environments. By setting an armor layer made of tin-plated copper mesh braid, the strength, impact resistance and tensile strength of the control cable can be enhanced. This utility model features a heat-conducting layer, including thermal grease. The thermal grease improves the heat dissipation of the control cable and prevents overheating from affecting the cable core. The outer wall of the thermal grease is covered with tin foil, which has good thermal conductivity and facilitates heat dissipation. Several heat-conducting sheets are placed between the wrapping tape and the heat dissipation layer, penetrating the thermal grease and tin foil. The placement of the heat-conducting sheets facilitates rapid and effective heat transfer. This utility model features a heat dissipation layer with several ventilation slots on its surface and several corrugated heat dissipation fins on the inner wall of the ventilation slots. The heat dissipation fins distribute the heat generated by the cable core during operation. When air passes through the ventilation slots, more heat can be exchanged with the air at once, thereby further improving the heat dissipation effect and efficiency of the control cable. This invention features a ring of heat-absorbing protrusions on the surface of the armor layer. These protrusions are made of copper and have several heat dissipation holes on their surfaces, allowing air to flow rapidly around the control cable and thus further enhancing its heat dissipation performance. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a front sectional view of the present invention.

[0017] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A.

[0018] In the diagram: 1. Heat sink; 2. Heat dissipation guide post; 3. Isolation plate; 4. Cable core; 4.1. Conductor; 4.2. Inorganic mineral insulation layer; 4.3. Conductor shielding layer; 5. Fireproof filling layer; 6. Oxygen barrier layer; 7. Heat-resistant wrapping layer; 8. Wrapping tape; 9. Thermal conductive layer; 9.1. Thermal grease; 9.2. Thermal conductive sheet; 9.3. Tin foil; 10. Heat dissipation layer; 10.1. Ventilation slot; 10.2. Heat dissipation fins; 11. Armor layer; 12. Heat-absorbing bump; 12.1. Heat dissipation hole. Detailed Implementation

[0019] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0020] According to an embodiment of the present invention, a control cable for rail transit with an isolation and heat dissipation structure is provided.

[0021] Example 1: As shown in the attached diagram of the instruction manual. Figure 1 As shown, a control cable for rail transit with an isolation and heat dissipation structure includes a heat sink 1, a heat-conducting layer 9, and a heat dissipation layer 10. The heat sink 1 has heat dissipation guide pillars 2 inside. A plurality of isolation plates 3 are arranged in a ring around the circumference of the heat sink 1. An oxygen barrier layer 6 is arranged around the isolation plates 3. The isolation plates 3 form a plurality of isolation grooves between the heat sink 1 and the oxygen barrier layer 6. A cable core 4 is arranged inside the isolation groove. The cable core 4 includes a conductor 4.1, and an inorganic mineral insulation layer 4.2 is arranged around the conductor 4.1. A conductor shielding layer 4.3 is provided around the 2. A fireproof filling layer 5 is filled between the heat sink 1, the isolation plate 3, the cable core 4 and the oxygen barrier layer 6. A heat-resistant wrapping layer 7 is provided around the oxygen barrier layer 6. A wrapping tape 8 is provided around the heat-resistant wrapping layer 7. A heat-conducting layer 9 is provided around the wrapping tape 8. A heat dissipation layer 10 is provided around the heat-conducting layer 9. An armor layer 11 is provided around the heat dissipation layer 10. A plurality of heat-absorbing protrusions 12 are arranged in a ring on the surface of the armor layer 11. A plurality of heat-absorbing protrusions 12 are opened on the surface of the heat-absorbing protrusions 12.1.

[0022] Example 2: As shown in the attached diagram of the instruction manual. Figure 1 , Figure 2 and Figure 3As shown, a control cable for rail transit with an isolation and heat dissipation structure includes a heat sink 1 at the center of the cable, with heat dissipation guide pillars 2 inside the heat sink 1. The heat sink 1 transfers the heat generated by the cable core 4 to the heat dissipation guide pillars 2, which are made of silicon carbide ceramic material to dissipate heat from the cable core 4. Several isolation plates 3 are arranged in a ring around the circumference of the heat sink 1, forming several isolation grooves between the heat sink 1 and the oxygen barrier layer 6. The cable core 4 is placed inside the isolation grooves, thus isolating the cable core 4 and preventing them from sticking together and causing static electricity. A fireproof filling layer 5, made of glass fiber, is filled between the heat sink 1, the isolation plates 3, the cable core 4, and the oxygen barrier layer 5. The glass fiber has high high-temperature resistance, giving the control cable a high melting point and heat resistance. The system incorporates an oxygen-barrier layer 6 made of ceramicized polyolefin flame-retardant and fire-resistant material. This layer rapidly forms a ceramic body with sufficient strength in flames and high-temperature environments, providing flame retardancy, heat insulation, and oxygen barrier properties for the control cable. A heat-resistant wrapping layer 7 made of polytetrafluoroethylene (PTFE) enhances the insulation protection and high-temperature resistance of the control cable, preventing melting or damage in high-temperature environments. An armor layer 11 made of tin-plated copper mesh further strengthens the control cable's strength, impact resistance, and tensile strength. Several heat-absorbing protrusions 12, made of copper, are arranged in a ring on the surface of the armor layer 11. These protrusions have numerous heat dissipation holes 12.1 on their surface, allowing rapid airflow around the control cable and further enhancing its heat dissipation performance.

[0023] The system includes a heat-conducting layer 9, which comprises thermal grease 9.1. The thermal grease 9.1 improves the heat dissipation of the control cable and prevents overheating from affecting the cable core 4. Tin foil 9.3 is placed on the outer wall of the thermal grease 9.1. Tin foil 9.3 has good thermal conductivity and facilitates the outward dissipation of heat. Several heat-conducting sheets 9.2 are placed between the wrapping tape 8 and the heat dissipation layer 10. The heat-conducting sheets 9.2 penetrate the thermal grease 9.1 and the tin foil 9.3, and the placement of the heat-conducting sheets 9.2 facilitates the rapid and effective transfer of heat.

[0024] The system includes a heat dissipation layer 10 with several ventilation slots 10.1 on its surface and several corrugated heat dissipation fins 10.2 on the inner wall of the ventilation slots 10.1. The heat dissipation fins 10.2 distribute the heat generated by the cable core 4 during operation. When air passes through the ventilation slots 10.1, the heat at the heat dissipation fins 10.2 can be exchanged with the air more at once, thereby further improving the heat dissipation effect and efficiency of the control cable.

[0025] Meanwhile, the components used in this utility model are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0026] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A control cable for rail transit with an isolation and heat dissipation structure, characterized in that: The device includes a heat sink (1), a heat-conducting layer (9), and a heat dissipation layer (10). The heat sink (1) has heat dissipation guide pillars (2) inside. Several isolation plates (3) are arranged in a ring around the circumference of the heat sink (1). An oxygen barrier layer (6) is arranged around the isolation plates (3). Several isolation grooves are formed between the heat sink (1) and the oxygen barrier layer (6) through the isolation plates (3). A cable core (4) is arranged inside the isolation groove. The cable core (4) includes a conductor (4.1). An inorganic mineral insulation layer (4.2) is arranged around the conductor (4.1). A conductor shielding layer (4.5) is arranged around the inorganic mineral insulation layer (4.2). .3), a fireproof filling layer (5) is filled between the heat sink (1), the isolation plate (3), the cable core (4) and the oxygen barrier layer (6). A heat-resistant wrapping layer (7) is provided around the oxygen barrier layer (6). A wrapping tape (8) is provided around the heat-resistant wrapping layer (7). A heat-conducting layer (9) is provided around the wrapping tape (8). A heat dissipation layer (10) is provided around the heat dissipation layer (9). An armor layer (11) is provided around the heat dissipation layer (10). A number of heat-absorbing protrusions (12) are arranged in a ring on the surface of the armor layer (11). A number of heat-absorbing protrusions (12) are opened on the surface of the heat-absorbing protrusions (12). A number of heat dissipation holes (12.1) are opened on the surface of the heat-absorbing protrusions (12).

2. A control cable for rail transit with an isolation and heat dissipation structure according to claim 1, characterized in that: The thermal conductive layer (9) includes thermal conductive grease (9.1), and the outer wall of the thermal conductive grease (9.1) is provided with tin foil (9.3). A plurality of thermal conductive sheets (9.2) are provided between the wrapping tape (8) and the heat dissipation layer (10), and the thermal conductive sheets (9.2) penetrate through the thermal conductive grease (9.1) and the tin foil (9.3).

3. A control cable for rail transit with an isolation and heat dissipation structure according to claim 1, characterized in that: The surface of the heat dissipation layer (10) is provided with a plurality of ventilation slots (10.1), and the inner wall of the ventilation slots (10.1) is provided with a plurality of heat dissipation fins (10.2), which are arranged in a wave shape.

4. A control cable for rail transit with an isolation and heat dissipation structure according to claim 1, characterized in that: The heat dissipation guide post (2) is made of silicon carbide ceramic material.

5. A control cable for rail transit with an isolation and heat dissipation structure according to claim 1, characterized in that: The fireproof filling layer (5) is made of glass fiber filaments.

6. A control cable for rail transit with an isolation and heat dissipation structure according to claim 1, characterized in that: The oxygen barrier layer (6) is made of ceramicized polyolefin flame-retardant and refractory material.

7. A control cable for rail transit with an isolation and heat dissipation structure according to claim 1, characterized in that: The heat-resistant coating layer (7) is made of polytetrafluoroethylene.

8. A control cable for rail transit with an isolation and heat dissipation structure according to claim 1, characterized in that: The armor layer (11) is made of tin-plated copper mesh.

9. A control cable for rail transit with an isolation and heat dissipation structure according to claim 1, characterized in that: The heat-absorbing bump (12) is made of copper.

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