Wire and cable with cooling structure and preparation method

Abstract

The present invention relates to the technical field of cable preparation, in particular to an electric wire and cable with a cooling structure and a preparation method thereof, comprising a transmission component, a heat dissipation layer, a cooling pipe and a flexible outer sheath; the transmission component comprises an inductive inner core, a signal inner core, a transmission conductor and an extruded coating layer, the cross-sectional shape of the extruded coating layer is flat, a connecting bracket is provided on the inner diameter of the cooling pipe, the cooling pipe is connected to the heat dissipation layer through the connecting bracket, the connecting bracket is provided with a cooling channel, and the cooling channel is located between the heat dissipation layer and the cooling pipe; the cross-sectional shape of the flexible outer sheath is flat, a transmission steel belt is provided on one side of the flexible outer sheath, and the transmission steel belt is formed between the flexible outer sheath and the cooling pipe by extrusion; the present invention has excellent heat dissipation performance, transmission efficiency, stability, reliability and adaptability, provides a strong guarantee for the stable operation of the industrial transmission system, and also prolongs the service life of the cable, and improves the overall work efficiency and safety.

Description

Technical Field

[0001] The invention relates to the technical field of cable preparation, and in particular to an electric wire and cable with a cooling structure and a preparation method thereof. Background Art

[0002] As infrastructure products in the field of power transmission and information transmission, wires and cables play a vital role in modern society. With the continuous advancement of science and technology, the manufacturing technology and materials of wires and cables are constantly innovating. The application of new conductor materials, insulation materials, shielding materials, and the improvement of production processes have enabled wires and cables to have higher transmission efficiency, better anti-interference performance, and longer service life. With the development of the global economy and the acceleration of urbanization, the demand for wires and cables continues to increase. Especially in emerging fields such as new energy, electric vehicles, automation, etc., higher requirements are put forward for wires and cables, which has promoted the development of the wire and cable industry.

[0003] In the automation industry, linear motors need to be applied to transmission cables. During operation, linear motors need to keep moving, and the cables need to follow the transmission. The existing transmission cable structures are fixed, and they cannot effectively dissipate heat when used for high-speed linear motor transmission. Therefore, further improvements need to be made to the existing cable structures. Summary of the invention

[0004] To solve the above problems, the present invention has excellent heat dissipation performance, transmission efficiency, stable reliability and adaptability, which provides a strong guarantee for the stable operation of the industrial transmission system, while also extending the service life of the cable and improving the overall work efficiency and safety of the wire and cable with cooling structure and the preparation method.

[0005] The technical solution adopted by the present invention is: a wire and cable with a cooling structure, used for a linear motor transmission drag chain cable, including a transmission component, a heat dissipation layer, a cooling pipe and a flexible outer sheath; the transmission component includes an inductive inner core, a signal inner core, a transmission conductor and an extruded coating layer, the cross-sectional shape of the extruded coating layer is flat, the inductive inner core, the signal inner core and the transmission conductor are all arranged in the extruded coating layer, the heat dissipation layer is arranged outside the extruded coating layer, the inner diameter of the cooling pipe is provided with a connecting bracket, the cooling pipe is connected to the heat dissipation layer through the connecting bracket, the connecting bracket is provided with a cooling channel, and the cooling channel is located between the heat dissipation layer and the cooling pipe; the cross-sectional shape of the flexible outer sheath is flat, a transmission steel belt is provided on one side of the flexible outer sheath, the transmission steel belt is formed between the flexible outer sheath and the cooling pipe by extrusion, and when the cable is transmitted, the flexible outer sheath follows the bending to drive the transmission steel belt to bend and squeeze the cooling pipe.

[0006] A further improvement to the above scheme is that the inductive core is provided with at least two inductive conductors, the outside of the inductive conductor is coated with an inductive insulating layer, and the inductive insulating layer is coated with an extruded coating layer; the outside of the inductive insulating layer is provided with an insulating shielding layer, and the insulating shielding layer is used to shield the electromagnetic interference between the inductive core and the signal core.

[0007] A further improvement to the above scheme is that the signal core is provided with at least two strands, the two signal cores are respectively arranged on both sides of the induction core, the signal core is provided with a signal conductor, a signal insulation layer is provided outside the signal conductor, and the signal insulation layer is coated with an extruded coating layer.

[0008] A further improvement to the above scheme is that the transmission conductors are provided with two groups, and the two groups of transmission conductors are respectively arranged on both sides of the extruded coating layer; the transmission conductors are formed by a plurality of copper wires hinged together, a conductor insulation layer is provided on the outside of the transmission conductor, a conductor shielding layer is provided on the outside of the conductor insulation layer, and the conductor shielding layer is used to shield the electromagnetic interference between the transmission conductor and the signal core.

[0009] A further improvement to the above scheme is that the heat dissipation layer includes a heat transfer copper layer attached to the extruded coating layer and a heat dissipation aluminum layer arranged on the heat transfer copper layer, and the heat transfer copper layer and the heat dissipation aluminum layer are integrated by composite connection.

[0010] A further improvement to the above solution is that the heat transfer copper layer is a copper foil layer, and the heat dissipation aluminum layer is formed on the copper foil layer by spraying aluminum powder to form an aluminum powder capillary structure.

[0011] A further improvement to the above scheme is that two groups of transmission components are arranged in the cooling pipe, and heat dissipation layers are arranged outside the two groups of transmission components. The connecting bracket fixes the two groups of transmission components, and a flow channel is formed between the two groups of transmission components. The cooling channel is connected to both ends of the flow channel.

[0012] A further improvement to the above scheme is that a coolant is flowed in the cooling channel, a flow interface is provided on one side of the flexible outer covering, the flow interface is provided on the flexible outer covering, and one end of the flow interface is connected to the cooling channel to circulate the coolant in the cooling channel.

[0013] A further improvement to the above solution is that the cooling pipe is a silicone pipe and is integrally coated on the outside of the heat dissipation layer by extrusion, and the connecting bracket is integrally molded on the inner diameter of the cooling pipe.

[0014] A further improvement to the above scheme is that two groups of transmission steel belts are provided, and the two groups of transmission steel belts are respectively arranged on opposite sides of the flexible outer sheath, and the cross-sectional shape of the transmission steel belt is arc-shaped, so as to be concave toward the cooling channel; when the cable is transmitted, it is transmitted in a U-shape, the cross-sectional shape of the inner transmission steel belt is concave, and the cross-sectional shape of the outer transmission steel belt is flat when the transmission is stretched.

[0015] A method for preparing a wire and cable, comprising the wire and cable with a cooling structure;

[0016] The preparation method comprises the following steps:

[0017] Step S1, preparing a transmission component: preparing an inductive inner core, a signal inner core and a transmission conductor, feeding the prepared inductive inner core, the signal inner core and the transmission conductor into an extrusion device, extruding the inductive inner core, the signal inner core and the transmission conductor through the extrusion device to form an extruded coating layer, and coating the inductive inner core, the signal inner core and the transmission conductor through the extruded coating layer to form a transmission component;

[0018] Step S2, preparation of heat dissipation layer: winding the copper foil layer on the outside of the extruded coating layer by a winding device, and sending it into a vacuum box after winding to vacuum the copper foil layer, extract the air gap between the copper foil layer and the extruded coating layer, so that the copper foil layer is closely attached to the extruded coating layer, and then entering the spraying device to spray copper powder on the outside of the copper foil layer, forming an aluminum powder capillary structure on the copper foil layer, and also connecting with the copper foil layer;

[0019] Step S3, preparation of cooling pipeline: the cooling pipeline is extruded and coated with silicone material on the outside of the heat dissipation layer by an extrusion device, and is connected to the heat dissipation layer through a connecting bracket during the extrusion process to form a cooling channel;

[0020] Step S4, preparation of flexible outer layer: After the preparation of the cooling pipe is completed, the steel belt unwinding mechanism unwinds the transmission steel belt, and the transmission steel belt and the cable are synchronously fed into the extrusion equipment. The extrusion equipment extrude and coat the transmission steel belt and the flexible outer layer as a whole on the outside of the cooling pipe to complete the preparation of the cable.

[0021] The beneficial effects of the present invention are:

[0022] Compared with the existing transmission motor cable, the present invention is used for the linear motor transmission drag chain cable. During the transmission process, the cable will be U-shaped transmission deformation. By arranging the heat dissipation layer and the cooling pipe in the wire and cable, the heat dissipation performance is effectively improved. During the transmission process of the wire and cable, the heat generated can be quickly dissipated through the cooling pipe, thereby maintaining the normal working temperature of the cable and reducing the risk of damage caused by overheating. The transmission component is provided with an induction core, a signal core and a transmission conductor. Through the design of the extruded coating layer, these internal components can be arranged more compactly, thereby improving the transmission efficiency and signal transmission quality of the wire and cable. The design of the flexible outer coating and the setting of the transmission steel belt enable the wire and cable to maintain a stable structure during transmission, and are not easy to deform or break. At the same time, they can effectively protect the cooling pipe and extend the service life of the cable. Due to the use of the extruded coating layer and the flexible outer coating with a flat cross-section shape, the wire and cable have high flexibility and adaptability, and can easily cope with various complex transmission environments and working conditions. The cooling channel is set by connecting the bracket, which effectively avoids the friction and wear between the cooling pipe and the heat dissipation layer, thereby improving the safety and reliability of the wire and cable. The present invention has excellent heat dissipation performance, transmission efficiency, stability, reliability and adaptability in the linear motor transmission drag chain cable, which provides a strong guarantee for the stable operation of the industrial transmission system, while also extending the service life of the cable and improving the overall work efficiency and safety.

[0023] When the cable is transmitting, the flexible outer layer follows the bending to drive the transmission steel belt to bend and squeeze the cooling pipe. When the flexible outer layer of the present invention follows the bending, it can drive the transmission steel belt to squeeze the cooling pipe, so that the cooling pipe maintains a stable position and shape. This design effectively reduces the vibration and shaking during the transmission process, and improves the stability and reliability of the transmission. When the transmission steel belt applies pressure to the cooling pipe, it can promote the coolant in the cooling channel to push, so that the flow effect of the coolant is increased, and the cooling effect is effectively enhanced.

[0024] A method for preparing a wire and cable, the method is combined with the technical effect of the above-mentioned cable as follows: Step S1: Preparation of a transmission component: In this step, the induction core, the signal core and the transmission conductor are coated by an extrusion device to form a transmission component. This step ensures the compact arrangement of the transmission component and improves the transmission efficiency and signal transmission quality of the wire and cable.

[0025] Preparation of heat dissipation layer in step S2: In this step, the copper foil layer is wound around the outside of the extruded coating layer by a winding device, and vacuum treatment is performed to make the copper foil layer and the extruded coating layer closer together, and an aluminum powder capillary structure is formed by a spraying device. This step improves the heat dissipation performance of the wire and cable, ensures that the heat generated during the transmission process can be effectively dissipated, and reduces the risk of overheating.

[0026] Preparation of cooling channel in step S3: Extrusion and coating of silicone material on the outside of the heat dissipation layer by extrusion equipment to form a cooling channel. This step ensures the formation of the cooling channel, and further enhances the cooling effect by connecting the cooling layer with the connecting bracket. This is in line with the technical effect of the aforementioned cable, that is, improving the heat dissipation performance and enhancing the cooling effect.

[0027] Preparation of the flexible outer layer in step S4: After the cooling pipe is prepared, the transmission steel belt and the flexible outer layer are extruded and coated on the outside of the cooling pipe. This step ensures that the flexible outer layer can follow the bending and drive the transmission steel belt to apply pressure to the cooling pipe, thereby achieving the technical effect of the aforementioned cable, that is, improving the transmission stability and enhancing the cooling effect.

[0028] The technical effects of the above-mentioned preparation method combined with the above-mentioned cable include improving transmission efficiency, improving heat dissipation performance, enhancing cooling effect and ensuring transmission stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the wire and cable with a cooling structure of the present invention;

[0030] Figure 2 for Figure 1 A three-dimensional schematic diagram of another perspective of the wire and cable with cooling structure;

[0031] Figure 3 for Figure 1 A is an enlarged schematic diagram;

[0032] Figure 4 for Figure 1 The front view of the wire and cable with cooling structure;

[0033] Figure 5 for Figure 1 A front view of another embodiment of a wire and cable with a cooling structure;

[0034] Figure 6 for Figure 1 A schematic diagram of a partial cross-sectional structure of a wire and cable with a cooling structure;

[0035] Figure 7 It is a schematic diagram of the preparation process of the wire and cable with cooling structure of the present invention.

[0036] Explanation of the reference numerals: transmission component 1, induction core 11, induction conductor 111, induction insulation layer 112, insulation shielding layer 113, signal core 12, signal conductor 121, signal insulation layer 122, transmission conductor 13, conductor insulation layer 131, conductor shielding layer 132, extruded coating layer 14, flow channel 15, heat dissipation layer 2, heat transfer copper layer 21, heat dissipation aluminum layer 22, cooling pipe 3, connecting bracket 31, cooling channel 32, flexible outer coating 4, transmission steel belt 41, flow interface 42. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Figure 1 to Figure 7As shown, in one embodiment of the present invention, a wire and cable with a cooling structure is involved, which is used for a linear motor transmission drag chain cable, including a transmission component 1, a heat dissipation layer 2, a cooling pipe 3 and a flexible outer coating 4; the transmission component 1 includes an inductive core 11, a signal core 12, a transmission conductor 13 and an extruded coating layer 14, the cross-sectional shape of the extruded coating layer 14 is flat, the inductive core 11, the signal core 12 and the transmission conductor 13 are all arranged in the extruded coating layer 14, the heat dissipation layer 2 is arranged outside the extruded coating layer 14, and the cooling pipe 3 is provided on the outer surface of the extruded coating layer 14. The inner diameter of the cooling pipe 3 is provided with a connecting bracket 31, and the cooling pipe 3 is connected to the heat dissipation layer 2 through the connecting bracket 31. The connecting bracket 31 is provided with a cooling channel 32, and the cooling channel 32 is located between the heat dissipation layer 2 and the cooling pipe 3; the cross-sectional shape of the flexible outer sheath 4 is flat, and a transmission steel belt 41 is provided on one side of the flexible outer sheath 4. The transmission steel belt 41 is formed between the flexible outer sheath 4 and the cooling pipe 3 by extrusion. When the cable is transmitted, the flexible outer sheath 4 follows the bending to drive the transmission steel belt 41 to bend and squeeze the cooling pipe 3. This embodiment is used for a linear motor transmission drag chain cable. During the transmission process, the cable will be U-shaped transmission deformation. By arranging the heat dissipation layer 2 and the cooling pipe 3 in the wire and cable, the heat dissipation performance is effectively improved. During the transmission process of the wire and cable, the heat generated can be quickly dissipated through the cooling pipe 3, thereby maintaining the normal operating temperature of the cable and reducing the risk of damage caused by overheating. The transmission component 1 is provided with an inductive inner core 11, a signal inner core 12 and a transmission conductor 13. Through the design of the extruded coating layer 14, these internal components can be arranged more compactly, thereby improving the transmission efficiency and signal transmission quality of the wire and cable. The design of the flexible outer coating layer 4 and the setting of the transmission steel belt 41 enable the wire and cable to maintain structural stability during transmission, and are not easy to deform or break. At the same time, they can effectively protect the cooling pipe 3 and extend the service life of the cable. Due to the use of the extruded coating layer 14 and the flexible outer coating layer 4 with a flat cross-sectional shape, the wire and cable have high flexibility and adaptability, and can easily cope with various complex transmission environments and working conditions. The cooling channel 32 is set by connecting the bracket 31, which effectively avoids the friction and wear between the cooling pipe 3 and the heat dissipation layer 2, thereby improving the safety and reliability of the wire and cable. This embodiment has excellent heat dissipation performance, transmission efficiency, stability, reliability and adaptability in the linear motor transmission drag chain cable, which provides a strong guarantee for the stable operation of the industrial transmission system, and also extends the service life of the cable, and improves the overall work efficiency and safety. In this embodiment, when the cable is driven, the flexible outer sheath 4 follows the bending to drive the driving steel belt 41 to bend and squeeze the cooling pipe 3. When the flexible outer sheath 4 of the present invention follows the bending, it can drive the driving steel belt 41 to squeeze the cooling pipe 3, so that the cooling pipe 3 maintains a stable position and shape.This design effectively reduces vibration and shaking during the transmission process, and improves the stability and reliability of the transmission. When the transmission steel belt 41 applies pressure to the cooling pipe 3, it can promote the coolant in the cooling channel 32 to push, so that the coolant flow effect is increased, and the cooling effect is effectively enhanced.

[0040] The inductive core 11 is provided with at least two inductive conductors 111, the inductive conductors 111 are coated with an inductive insulating layer 112 on the outside, and the inductive insulating layer 112 is coated by an extruded coating layer 14; an insulating shielding layer 113 is provided on the outside of the inductive insulating layer 112, and the insulating shielding layer 113 is used to shield the electromagnetic interference between the inductive core 11 and the signal core 12. Specifically, the signal core 12 is provided with at least two strands, and the two strands of signal cores 12 are respectively provided on both sides of the inductive core 11, and the signal core 12 is provided with a signal conductor 121, and a signal insulating layer 122 is provided on the outside of the signal conductor 121, and the signal insulating layer 122 is coated by an extruded coating layer 14. In this embodiment, by providing at least two inductive conductors 111 on the inductive core 11, coating the inductive insulating layer 112 on the outside thereof, and then providing the insulating shielding layer 113 on the outside of the inductive insulating layer 112, the electromagnetic interference between the inductive core 11 and the signal core 12 can be effectively shielded. This can ensure that the transmission process is not affected by external electromagnetic interference, and improve the stability and reliability of signal transmission. By providing at least two signal cores 12, and providing a signal conductor 121 and a signal insulation layer 122 on each signal core 12, and then coating it with an extruded coating layer 14, the quality of signal transmission can be effectively improved. This design ensures the stability and accuracy of signal transmission and reduces the loss and distortion during signal transmission. The cable structure that integrates the inductive core 11 and the signal core 12 is more compact and has strong protective performance. It can effectively protect the internal conductor and the insulation layer from the influence of the external environment and extend the service life of the cable.

[0041] There are two groups of transmission conductors 13, and the two groups of transmission conductors 13 are respectively arranged on both sides of the extruded coating layer 14; the transmission conductor 13 is formed by a plurality of copper wires being hinged to each other, and a conductor insulation layer 131 is arranged outside the transmission conductor 13, and a conductor shielding layer 132 is arranged outside the conductor insulation layer 131, and the conductor shielding layer 132 is used to shield the electromagnetic interference between the transmission conductor 13 and the signal core 12. In this embodiment, by setting the transmission conductor 13 to be formed by a plurality of copper wires being hinged to each other, and arranging the conductor insulation layer 131 and the conductor shielding layer 132 outside thereof, the electromagnetic interference between the transmission conductor 13 and the signal core 12 can be effectively shielded. In this way, it can be ensured that the transmission process is not affected by external electromagnetic interference, and the stability and reliability of signal transmission are improved. The transmission conductor 13 formed by a plurality of copper wires being hinged to each other can improve the flexibility and bending performance of the transmission conductor 13, thereby reducing the signal loss during the transmission process and improving the signal transmission quality. By arranging two groups of transmission conductors 13 on both sides of the extruded coating layer 14, the cable structure is made more compact and has stronger protection performance, which can effectively protect the internal conductor and the insulation layer from the influence of the external environment and extend the service life of the cable.

[0042] The heat dissipation layer 2 includes a heat transfer copper layer 21 attached to the extruded coating layer 14 and a heat dissipation aluminum layer 22 arranged on the heat transfer copper layer 21, and the heat transfer copper layer 21 and the heat dissipation aluminum layer 22 are integrally formed by composite connection. Specifically, the heat transfer copper layer 21 is a copper foil layer, and the heat dissipation aluminum layer 22 is formed on the copper foil layer by spraying aluminum powder to form an aluminum powder capillary structure. In this embodiment, the heat dissipation performance of the cable can be effectively improved by the composite connection of the heat transfer copper layer 21 and the heat dissipation aluminum layer 22, and the aluminum powder capillary structure formed on the heat dissipation aluminum layer 22. Such a design helps to accelerate the conduction and dissipation of heat, effectively reduces the heat generated by the cable during transmission, reduces the risk of overheating, and thus ensures the stable operation of the cable. The composite connection of the heat transfer copper layer 21 and the heat dissipation aluminum layer 22 makes the structure of the heat dissipation layer 2 more stable, and at the same time, the formation of the aluminum powder capillary structure increases the surface area, which is conducive to the release of heat, so that the heat dissipation layer 2 has strong durability and stability. The aluminum powder capillary structure formed by aluminum powder spraying not only improves the heat dissipation effect, but also reduces the use of materials, reduces energy consumption, and meets the requirements of environmental protection and energy saving.

[0043] Two groups of transmission components 1 are arranged in the cooling pipe 3, and the heat dissipation layer 2 is arranged outside the two groups of transmission components 1. The connecting bracket 31 fixes the two groups of transmission components 1, and a flow channel 15 is formed between the two groups of transmission components 1. The cooling channel 32 is connected to both ends of the flow channel 15. Specifically, a coolant flows in the cooling channel 32, and a flow interface 42 is arranged on one side of the flexible outer layer 4. The flow interface 42 is arranged on the flexible outer layer 4, and one end is connected to the cooling channel 32 to circulate the coolant in the cooling channel 32. The cooling pipe 3 is a silicone pipe, and is integrally coated on the outside of the heat dissipation layer 2 by extrusion. The connecting bracket 31 is integrally formed on the inner diameter of the cooling pipe 3. In this embodiment, by arranging two groups of transmission components 1 in the cooling pipe 3, and disposing the heat dissipation layer 2 outside thereof, and fixing the two groups of transmission components 1 by the connecting bracket 31, and forming the flow channel 15, the heat dissipation and cooling performance of the cable can be effectively improved. Such a design helps to accelerate the conduction and dissipation of heat. At the same time, the circulation of the coolant flowing in the cooling channel 32 effectively reduces the heat generated by the cable during the transmission process, reduces the risk of overheating, and thus ensures the stable operation of the cable. It is particularly suitable for use in double-station linear motor transmission. By setting the flow interface 42 on the flexible outer layer 4 and connecting it with the coolant in the cooling channel 32, the circulation of the coolant is achieved. Such a design can keep the operating temperature of the cable within a safe range and ensure that the cable works stably for a long time. By using a silicone pipe as the cooling pipe 3, and by extruding and integrally coating it on the outside of the heat dissipation layer 2, and the connecting bracket 31 is integrally formed on the inner diameter of the cooling pipe 3, the cable structure is more compact and durable, and can effectively protect the internal components from the influence of the external environment, thereby extending the service life of the cable. The flow interface 42 can be connected to a water pump system for the circulation of the coolant, and can be used according to high-heat and high-load cables.

[0044] There are two groups of transmission steel belts 41, which are respectively arranged on opposite sides of the flexible outer sheath 4, and the cross-sectional shape of the transmission steel belts 41 is arc-shaped, so as to be concave toward the cooling channel 32; when the cable is transmitted, it is transmitted in a U-shaped manner, the cross-sectional shape of the inner transmission steel belt 41 is concave, and the cross-sectional shape of the outer transmission steel belt 41 is flat when the transmission is stretched. In this embodiment, by arranging two groups of transmission steel belts 41 on opposite sides of the flexible outer sheath 4, and making the cross-sectional shape of the transmission steel belt 41 arc-shaped, so as to be concave toward the cooling channel 32, when the cable is transmitted, it is transmitted in a U-shaped manner, the cross-sectional shape of the inner transmission steel belt 41 is concave, and the cross-sectional shape of the outer transmission steel belt 41 is flat when the transmission is stretched, the transmission stability of the cable can be effectively improved. Such a design helps to reduce friction and vibration during transmission, and ensure the stability and reliability of the cable transmission process. By adjusting the cross-sectional shape of the transmission steel belt 41 to adapt it to the tension and pressure changes during transmission, the transmission steel belt 41 can be effectively prevented from being damaged and worn during the transmission process. At the same time, the deformation during the transmission process can squeeze the coolant to form a flowing liquid inside, thereby better transmitting and dissipating heat in the flow channel 15.

[0045] like Figure 1 to Figure 7 As shown, a method for preparing a wire and cable includes the wire and cable with a cooling structure; the preparation method includes the following steps:

[0046] Step S1, preparation of transmission component 1: preparing inductive core 11, signal core 12 and transmission conductor 13, feeding the prepared inductive core 11, signal core 12 and transmission conductor 13 into extrusion equipment, extruding through the extrusion equipment to form extrusion coating layer 14, coating the inductive core 11, signal core 12 and transmission conductor 13 through the extrusion coating layer 14 to form transmission component 1; in this step, coating the inductive core 11, signal core 12 and transmission conductor 13 through the extrusion equipment to form transmission component 1. This step ensures the compact arrangement of transmission component 1 and improves the transmission efficiency and signal transmission quality of wires and cables.

[0047] Step S2, preparation of heat dissipation layer 2: the copper foil layer is wound on the outside of the extruded coating layer 14 by a winding device, and after winding, it is sent into a vacuum box to vacuum the copper foil layer, extract the air gap between the copper foil layer and the extruded coating layer 14, so that the copper foil layer is closely attached to the extruded coating layer 14, and then enter the spraying device to spray copper powder on the outside of the copper foil layer, forming an aluminum powder capillary structure on the copper foil layer, and also connecting with the copper foil layer; in this step, the copper foil layer is wound on the outside of the extruded coating layer 14 by a winding device, and vacuum treatment is performed to make the copper foil layer and the extruded coating layer 14 closer, and at the same time, an aluminum powder capillary structure is formed by a spraying device. This step improves the heat dissipation performance of wires and cables, ensures that the heat generated during the transmission process can be effectively dissipated, and reduces the risk of overheating.

[0048] Step S3, preparation of cooling pipe 3: The cooling pipe 3 is extruded and coated with silicone material on the outside of the heat dissipation layer 2 by an extrusion device, and is connected to the heat dissipation layer 2 through a connecting bracket 31 during the extrusion process to form a cooling channel 32; the silicone material is extruded and coated on the outside of the heat dissipation layer 2 by an extrusion device to form a cooling channel 32. This step ensures the formation of the cooling pipe 3, and is connected to the heat dissipation layer 2 through the connecting bracket 31, further enhancing the cooling effect. This is in line with the technical effect of the aforementioned cable, that is, improving the heat dissipation performance and enhancing the cooling effect.

[0049] Step S4, preparation of the flexible outer covering 4: After the preparation of the cooling pipe 3 is completed, the steel belt unwinding mechanism unwinds the transmission steel belt 41, and the transmission steel belt 41 and the cable are synchronously fed into the extrusion equipment, and the extrusion equipment extrudes the transmission steel belt 41 and the flexible outer covering 4 as a whole and covers the outside of the cooling pipe 3 to complete the preparation of the cable. After the preparation of the cooling pipe 3 is completed, the transmission steel belt 41 and the flexible outer covering 4 are extruded and covered as a whole on the outside of the cooling pipe 3. This step ensures that the flexible outer covering 4 can follow the bending and drive the transmission steel belt 41 to apply pressure to the cooling pipe 3, thereby achieving the technical effect of the aforementioned cable, that is, improving the transmission stability and enhancing the cooling effect.

[0050] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A wire and cable with a cooling structure, used for a linear motor transmission drag chain cable, characterized in that: It comprises a transmission component, a heat dissipation layer, a cooling pipe and a flexible outer covering layer; the transmission component comprises an inductive inner core, a signal inner core, a transmission conductor and an extruded covering layer, the cross-sectional shape of the extruded covering layer is flat, the inductive inner core, the signal inner core and the transmission conductor are all arranged in the extruded covering layer, the heat dissipation layer is arranged outside the extruded covering layer, the inner diameter of the cooling pipe is provided with a connecting bracket, the cooling pipe is connected to the heat dissipation layer through the connecting bracket, the connecting bracket is provided with a cooling channel, and the cooling channel is located between the heat dissipation layer and the cooling pipe; the cross-sectional shape of the flexible outer covering layer is flat, a transmission steel belt is provided on one side of the flexible outer covering layer, and the transmission steel belt is formed between the flexible outer covering layer and the cooling pipe by extrusion; The heat dissipation layer comprises a heat transfer copper layer attached to the extruded coating layer and a heat dissipation aluminum layer arranged on the heat transfer copper layer, and the heat transfer copper layer and the heat dissipation aluminum layer are integrally formed by composite connection; The heat transfer copper layer is a copper foil layer, and the heat dissipation aluminum layer is formed on the copper foil layer by spraying aluminum powder to form an aluminum powder capillary structure; Two groups of transmission components are arranged in the cooling pipeline, and heat dissipation layers are arranged outside the two groups of transmission components. The connecting bracket fixes the two groups of transmission components, and a flow channel is formed between the two groups of transmission components. The cooling channel is connected with both ends of the flow channel. A coolant is arranged to flow in the cooling channel, a flow interface is arranged on one side of the flexible outer cladding, the flow interface is arranged on the flexible outer cladding, and one end of the flow interface is connected to the cooling channel to circulate the coolant in the cooling channel; The cooling pipe is a silicone pipe and is integrally coated on the outside of the heat dissipation layer by extrusion, and the connecting bracket is integrally molded on the inner diameter of the cooling pipe.

2. The wire and cable with cooling structure according to claim 1, characterized in that: The inductive inner core is provided with at least two inductive conductors, the inductive conductors are coated with an inductive insulating layer on the outside, and the inductive insulating layer is coated with an extruded coating layer; an insulating shielding layer is provided on the outside of the inductive insulating layer, and the insulating shielding layer is used to shield the electromagnetic interference between the inductive inner core and the signal inner core; The signal inner core is provided with at least two strands, the two strands of signal inner core are respectively provided on both sides of the induction inner core, the signal inner core is provided with a signal conductor, a signal insulating layer is provided outside the signal conductor, and the signal insulating layer is covered by an extruded coating layer.

3. The wire and cable with cooling structure according to claim 1, characterized in that: The transmission conductors are provided in two groups, and the two groups of transmission conductors are respectively arranged on both sides of the extruded coating layer; the transmission conductors are formed by a plurality of copper wires hinged to each other, a conductor insulation layer is arranged on the outside of the transmission conductor, a conductor shielding layer is arranged on the outside of the conductor insulation layer, and the conductor shielding layer is used to shield the electromagnetic interference between the transmission conductor and the signal core.

4. The wire and cable with cooling structure according to claim 1, characterized in that: The transmission steel belts are provided in two groups, and the two groups of transmission steel belts are respectively arranged on opposite sides of the flexible outer covering layer. The cross-sectional shape of the transmission steel belts is arc-shaped, so as to be concave toward the cooling channel. When the cable is transmitted, it is transmitted in a U-shaped manner, and the cross-sectional shape of the inner transmission steel belt is concave, and the cross-sectional shape of the outer transmission steel belt is flat when the transmission is stretched.

5. A method for preparing a wire and cable, comprising the wire and cable with a cooling structure according to any one of claims 1 to 4; The preparation method comprises the following steps: Step S1, preparing a transmission component: preparing an inductive inner core, a signal inner core and a transmission conductor, feeding the prepared inductive inner core, the signal inner core and the transmission conductor into an extrusion device, extruding the inductive inner core, the signal inner core and the transmission conductor through the extrusion device to form an extruded coating layer, and coating the inductive inner core, the signal inner core and the transmission conductor through the extruded coating layer to form a transmission component; Step S2, preparation of heat dissipation layer: winding the copper foil layer on the outside of the extruded coating layer by a winding device, and sending it into a vacuum box after winding to vacuum the copper foil layer, extract the air gap between the copper foil layer and the extruded coating layer, so that the copper foil layer is closely attached to the extruded coating layer, and then entering the spraying device to spray copper powder on the outside of the copper foil layer, forming an aluminum powder capillary structure on the copper foil layer, and also connecting with the copper foil layer; Step S3, preparation of cooling pipeline: the cooling pipeline is extruded and coated with silicone material on the outside of the heat dissipation layer by an extrusion device, and is connected to the heat dissipation layer through a connecting bracket during the extrusion process to form a cooling channel; Step S4, preparation of flexible outer layer: After the preparation of the cooling pipe is completed, the steel belt unwinding mechanism unwinds the transmission steel belt, and the transmission steel belt and the cable are synchronously fed into the extrusion equipment. The extrusion equipment extrude and coat the transmission steel belt and the flexible outer layer as a whole on the outside of the cooling pipe to complete the preparation of the cable.

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