A composite cable and its preparation method

Abstract

The present invention relates to the technical field of cables, and provides a composite cable and a preparation method thereof, which include an elastic support, elastic wires, a first wire core, and a cooling pipeline. Among them, the elastic support has a star-shaped structure and has a plurality of grooves; the elastic wires are wound around the elastic support, and the elastic wires include a supporting part that abuts against the elastic support and a suspended bearing part. The bearing part is coated with a metal sheet, and a heat-insulating layer is arranged inside the metal sheet; a plurality of elastic wires are arranged at intervals along the axis of the elastic support; the first wire core fits against the bearing part and presses the bearing part into the groove, and there is a gap between the bearing part and the elastic support; the cooling pipeline is arranged inside the elastic support. By setting the elastic wires in the present invention, the first wire core can be carried, and the bearing part of the elastic wire relies on elastic force for buffering, thereby preventing the wire core from deforming and being damaged; after the pressure is eliminated, the wire core can be reset by relying on the elastic force of the elastic wire, so as to ensure the stability of the cable application.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a composite cable and a preparation method thereof. Background Art

[0002] A composite cable is a cable system composed of multiple different types of cables. Usually, cables with different functions are integrated together to simplify wiring, reduce space occupancy, and improve installation efficiency. The design of a composite cable usually combines different signal transmission lines, power lines, control lines, shielded lines, etc. in one cable and is widely used in various industries such as industrial automation, communication, construction, automotive, and energy fields. When designing a composite cable, a certain protective layer is usually added, such as a shielding layer and an insulating layer, which helps to improve the anti-interference ability, wear resistance, corrosion resistance, etc. of the cable, thereby improving the reliability of the system.

[0003] The existing invention patent with the authorized announcement number of CN110689997B discloses a composite cable that suppresses both the deformation of the overall cross-sectional shape of the composite cable and the deformation of the cross-sectional shape of the electric wires contained in the composite cable. The composite cable has: multiple first electric wires; a shielded electric wire formed by providing a shielding layer around a twisted pair formed by twisting multiple second electric wires; a sheath provided around an aggregate of electric wires formed by twisting the first electric wires and the shielded electric wire; a first linear interposer filled between the twisted pair and the shielding layer; and a second linear interposer filled between the aggregate of electric wires and the sheath. The first electric wires and the shielded electric wire are twisted in a first direction, and the second electric wires are also twisted in the first direction.

[0004] For the composite cable in the above technical solution, it adopts a stranded structure and realizes buffering by the filled linear interposer in a way that the degree of twisting becomes loose when under pressure; however, for this structure of cable, it has a good buffering and reset effect for bending and torsion, but has poor resistance to impact; especially in the case where the first electric wire and the shielded electric wire are in contact with each other, the cable will have a high rigidity, and after being impacted, the internal core conductor is prone to damage; especially when using a core conductor formed by twisting multiple bare stranded wires, the bare stranded wires are prone to deformation and cannot be reset subsequently, and the corresponding functional layers such as the external insulating layer and shielding layer will also deform, resulting in local thinning and easy damage; at the same time, more production materials are used. Summary of the Invention

[0005] In view of this, the present invention provides a composite cable with impact resistance and anti-torsion performance and a preparation method thereof to solve the problems of poor impact resistance of the existing composite cable and inability to reset after deformation.

[0006] The technical solution of the present invention is realized as follows:

[0007] On the one hand, the present invention provides a composite cable, comprising an elastic support, elastic wires, a first core and a cooling pipeline, wherein,

[0008] The elastic support has a star-shaped structure and has a plurality of grooves;

[0009] The elastic wires are wound around the elastic support. The elastic wires include a holding part that holds the elastic support and a suspended bearing part. The bearing part is coated with a metal sheet, and a heat insulation layer is arranged inside the metal sheet;

[0010] A plurality of elastic wires are arranged at intervals along the axis of the elastic support;

[0011] The first core fits against the bearing part, presses the bearing part into the groove, and there is a gap between the bearing part and the elastic support;

[0012] The cooling pipeline is arranged inside the elastic support and is used for circulating a cooling medium to cool the elastic wires.

[0013] On the basis of the above technical solutions, preferably, it further comprises an elastomer and a second core. The elastic support has a protrusion located between two grooves, wherein,

[0014] The elastomer fits against the protrusion. The elastomer has a first limiting groove away from the protrusion and second limiting grooves on both sides;

[0015] The first core fits against the second limiting groove;

[0016] The second core fits against the first limiting groove and the second core.

[0017] On the basis of the above technical solutions, preferably, the elastomer is a hollow structure, and the elastomer is connected to the protrusion by injection molding or bonding and fixes the holding part;

[0018] The diameter of the first core is larger than the diameter of the second core, and the end faces of the first core and the second core are tangent to the same virtual circle.

[0019] On the basis of the above technical solutions, preferably, it further comprises a buffer layer, a braided layer, a nylon rope and a first cabling layer, wherein,

[0020] The buffer layer is a foaming material and is wrapped on the surfaces of the first core and the second core;

[0021] The braided layer is wound around the surface of the buffer layer to shape the buffer layer and improve the strength of the composite cable;

[0022] The nylon rope is arranged between the first core and the second core and is covered by the buffer layer;

[0023] The cabling layer is arranged on the surface of the braided layer.

[0024] On the basis of the above technical solutions, preferably, it further includes ribs and steel strands. The ribs are arranged on the outer side of the first cable layer, and the ribs correspond to the first conductor core;

[0025] An arc groove is arranged on the side of the rib away from the first cable layer to form two convex ribs, and the convex ribs correspond to the buffer layer;

[0026] The convex rib is of a hollow structure, and the steel strand is arranged inside the convex rib.

[0027] On the basis of the above technical solutions, preferably, it further includes a wrapping layer and a second cable layer. The second conductor core includes a conductor and an insulating layer. Among them,

[0028] The wrapping layer surrounds the first conductor core and the second conductor core;

[0029] The surface of the conductor is wrapped with an insulating layer, and the insulating layer and the wrapping layer are of an integral structure;

[0030] The second cable layer is arranged on the surface of the wrapping layer.

[0031] On the basis of the above technical solutions, preferably, the groove of the elastic support, and the first limiting groove and the second limiting groove of the elastic body are all arc-shaped grooves;

[0032] The arc radius of the cross-section of the groove is smaller than the arc radius of the cross-section of the second limiting groove;

[0033] The arc radius of the cross-section of the first limiting groove is smaller than the arc radius of the cross-section of the groove.

[0034] On the basis of the above technical solutions, preferably, it further includes a heat conductor. The cooling pipeline is communicated with the inner cavity of the elastic body. Among them,

[0035] The heat conductor includes a first heat-conducting part that fits the groove, and a second heat-conducting part that penetrates the elastic support and extends into the cooling pipeline;

[0036] The heat conductor is spaced from the elastic wire.

[0037] On the other hand, the present invention provides a method for manufacturing the above composite cable, including the following steps:

[0038] S1. Injection molding is carried out on the surface of the cooling pipeline to form an elastic support;

[0039] S2. Wind the elastic wire on the surface of the elastic support;

[0040] S3. Lay the first conductor core on the bearing part of the elastic wire;

[0041] S4. Wind the first conductor core with a braided material to apply pressure to the first conductor core, so that the bearing part sinks into the groove, and the bundling diameter is completed;

[0042] S5. A cable layer is arranged outside the preparation material.

[0043] On the other hand, the present invention provides another method for preparing the above composite cable, including the following steps:

[0044] S1. Injection molding is carried out on the surface of the cooling pipeline to form an elastic support;

[0045] S2. An elastic wire is wound around the surface of the elastic support;

[0046] S3. The first core is arranged on the bearing part of the elastic wire, and a certain pressure is applied to make the bearing part sink into the groove;

[0047] S4. An integral wrapping layer and an insulating layer are synchronously formed by an extrusion method, and the insulating layer wraps the second core, and the wrapping layer wraps the first core and the second core;

[0048] S5. A cable layer is arranged outside the wrapping layer.

[0049] The composite cable and its preparation method of the present invention have the following beneficial effects compared with the prior art:

[0050] (1) By arranging an elastic support with a star-shaped structure and winding an elastic wire on the elastic support, the bearing part of the elastic wire will be in a suspended state. When the first core is arranged, the first core can be carried. After the first core is arranged, there is still a gap between the bearing part and the elastic support. In this way, when the cable is subsequently impacted, the bearing part of the elastic wire will rely on the elastic force for buffering. Even if the bearing part contacts the elastic support, it can be further buffered by relying on the deformation of the elastic support, so as to prevent the core from deforming and being damaged; and after the pressure applied to the cable is eliminated, the core can be reset by relying on the elastic force of the elastic wire, so as to ensure the stability of the cable application, and at the same time, less production materials are used;

[0051] (2) By arranging a cooling pipeline in the elastic support, wrapping a metal sheet on the bearing part, and arranging a heat insulating layer inside the metal sheet, the heat of the core will be conducted to the metal sheet and will not affect the elastic wire, which can ensure the service life of the elastic wire. Furthermore, when the cooling medium flows through the cooling pipeline, the temperature of the elastic support decreases and absorbs heat, so as to take away the heat inside the cable;

[0052] (3) By arranging an elastic body on the protrusion of the elastic support, the second core can be arranged by relying on the elastic body, so as to improve the transmission capacity of the composite cable; the elastic body simultaneously abuts against the second core and the first core, and the elastic body is a hollow structure, so it also has good buffering and resetting capabilities and can ensure the structural stability of the cable;

[0053] (4) By providing a buffer layer within the cable that wraps around the first core and the second core, the impact resistance of the cable can be further enhanced. Since the buffer layer is made of a foamed material, it can encapsulate nylon ropes, and rely on the nylon ropes to improve the tensile strength of the cable, which further enhances the structural strength of the cable.

[0054] (5) By providing ribs on the stranding layer of the cable, and the ribs having protruding ridges, when the cable is subjected to impact and extrusion, the force applied will not be directly transmitted to the first core, but first transmitted from the ridges to the buffer layer, and then from the first core to the elastic wire. This improves the buffering capacity of the cable and can effectively avoid the problem that the core deforms and cannot return to its original position due to impact when using a core composed of multiple stranded bare wires.

[0055] (6) By providing a heat conductor, and the heat conductor directly extending into the cooling pipeline through the second heat conduction part, after the heat conductor absorbs the heat of the core, the heat can be quickly transmitted into the cooling pipeline, and the cooling medium takes away the heat, which can effectively improve the heat dissipation capacity of the cable; at the same time, the cooling pipeline communicates with the inner cavity of the elastic body, and this can rely on the inner cavity of the elastic body to synchronously achieve the transportation of the cooling medium, thereby improving the heat dissipation capacity of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0057] Figure 1 It is a cross-sectional view of the composite cable of the present invention;

[0058] Figure 2 It is a three-dimensional view of the composite cable of the present invention;

[0059] Figure 3 It is a cross-sectional view of the connection structure of the elastic support, elastic wire, elastic body and heat conductor of the composite cable of the present invention;

[0060] Figure 4 It is a three-dimensional view of the connection structure of the elastic support, elastic wire, elastic body and heat conductor of the composite cable of the present invention;

[0061] Figure 5 It is a cross-sectional view of the composite cable in Embodiment 2 of the present invention;

[0062] Figure 6 It is a three-dimensional view of the composite cable in Embodiment 2 of the present invention;

[0063] Figure 7Schematic diagram of the first core and the second core of the composite cable of the present invention being tangent to each other;

[0064] In the figure: 1, elastic support; 101, groove; 102, protrusion; 2, elastic wire; 21, abutting portion; 22, bearing portion; 3, first core; 4, cooling pipeline; 5, elastic body; 501, first limiting groove; 502, second limiting groove; 6, second core; 61, conductor; 62, insulating layer; 7, buffer layer; 8, braided layer; 9, nylon rope; 10, first cabling layer; 11, rib; 111, riblet; 1101, arc groove; 12, steel strand; 13, coating layer; 14, second cabling layer; 15, heat-conducting body; 151, first heat-conducting portion; 152, second heat-conducting portion. Detailed implementation mode

[0065] Next, in combination with the implementation modes of the present invention, the technical solutions in the implementation modes of the present invention will be clearly and completely described. Obviously, the described implementation modes are only a part of the implementation modes of the present invention, rather than all the implementation modes. Based on the implementation modes in the present invention, all other implementation modes obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0066] As Figures 1 to 6 shown, the composite cable of the present invention includes an elastic support 1, an elastic wire 2, a first core 3, a cooling pipeline 4, an elastic body 5, a second core 6, a buffer layer 7, a braided layer 8, a nylon rope 9, a first cabling layer 10, a rib 11, a steel strand 12, a coating layer 13, a second cabling layer 14 and a heat-conducting body 15.

[0067] Example 1:

[0068] As Figures 1 to 4 shown, the composite cable of this embodiment includes an elastic support 1, an elastic wire 2, a first core 3, a cooling pipeline 4, an elastic body 5, a second core 6, a buffer layer 7, a braided layer 8, a nylon rope 9, a first cabling layer 10, a rib 11, a steel strand 12 and a heat-conducting body 15.

[0069] As Figures 1 to 4 shown, the elastic support 1 has a star-shaped structure, and the elastic support 1 has a plurality of grooves 101; the elastic wire 2 is wound around the elastic support 1, and the elastic wire 2 includes an abutting portion 21 that abuts against the elastic support 1 and a suspended bearing portion 22, and a metal sheet is coated on the bearing portion 22, and a heat-insulating layer is provided inside the metal sheet; a plurality of elastic wires 2 are arranged at intervals along the axis of the elastic support 1; the first core 3 fits against the bearing portion 22 and presses the bearing portion 22 into the groove 101, and there is a gap between the bearing portion 22 and the elastic support 1;

[0070] In the above structure, the elastic support 1 forms a star structure by opening a plurality of grooves 101. In this way, when the elastic wire 2 is wound around the elastic support 1, the elastic wire 2 will form an abutting portion 21 in contact with the elastic support 1 and a suspended bearing portion 22.

[0071] When setting the first wire core 3, the first wire core 3 fits against the bearing portion 22 of the elastic wire 2. At the same time, pressure needs to be applied to the bearing portion 22 so that the bearing portion 22 bends into the groove 101 and the bearing portion 22 does not touch the elastic support 1. In this way, when the first wire core 3 is subjected to impact pressure, the bearing portion 22 still has a stretching displacement space, thereby realizing a buffering effect to avoid cable damage; and after the external pressure disappears, the bearing portion 22 can rely on its elasticity to reset the first wire core 3 to avoid problems that affect power or signal transmission due to the inability of the first wire core 3 to reset.

[0072] Specifically, a plurality of elastic wires 2 are arranged at intervals along the axial direction of the elastic support 1. In this way, by adjusting the density of the elastic wires 2, the buffering capacity of this cable can be adjusted, and at the same time, the weight of the cable can be reduced.

[0073] In some embodiments, the elastic wire 2 can also be set as one, and is wound densely or at a large interval around the elastic support 1.

[0074] Specifically, a metal sheet is sleeved on the bearing portion 22 of the elastic wire 2. The metal sheet can be set as a cylindrical structure to make it have a certain bending ability; at the same time, an adiabatic layer, such as an adiabatic coating, is provided inside the metal sheet, which can prevent the heat generated by the first wire core 3 from being transmitted to the elastic wire 2 through the metal sheet, thereby avoiding the accelerated aging of the elastic wire 2 and extending the service life of the elastic wire 2.

[0075] At the same time, relying on the above-mentioned forming structure, there is no need to strangle between the first wire cores 3. In a cable with the same length, compared with a stranded cable, the amount of material used is reduced and the structural strength is guaranteed.

[0076] As Figure 1 and Figure 2 shown, the cooling pipeline 4 is arranged inside the elastic support 1, and the cooling pipeline 4 is used to circulate the cooling medium to cool the elastic wire 2.

[0077] In the above structure, a cooling pipeline 4 is arranged inside the elastic support 1, which is used to circulate the cooling medium. The elastic support 1 is made of a heat-conducting material. In this way, the elastic support 1 can have a lower temperature, thereby reducing the internal temperature of the cable; at the same time, the metal sheet of the bearing portion 22, due to its good heat absorption and heat dissipation capabilities, supplemented by the setting of the adiabatic layer, while reducing the influence of temperature on the bearing portion 22, can improve the heat dissipation efficiency of the first wire core 3.

[0078] As Figure 1 andFigure 4 As shown, the elastic support 1 has a protrusion 102 located between two grooves 101. Among them, the elastomer 5 is arranged to fit the protrusion 102. The elastomer 5 has a first limiting groove 501 away from the protrusion 102 and second limiting grooves 502 on both sides. The first wire core 3 fits the second limiting groove 502. The second wire core 6 fits the first limiting groove 501 and the second wire core 6.

[0079] In the above structure, the elastic support 1 is provided with grooves 101, and at the same time, a protrusion 102 is formed. The protrusion 102 provides support for the elastic wire 2.

[0080] When setting the elastomer 5, the elastomer 5 is arranged on the protrusion 102, and the elastomer 5 is provided with a first limiting groove 501 and a second limiting groove 502. Thus, when setting the first wire core 3, after the first wire core 3 applies pressure to the bearing part 22 of the elastic wire 2, it will fit into the second limiting groove 502. At this time, when setting the second wire core 6, the second wire core 6 will fit into the first limiting groove 501 and abut against the adjacent second wire core 6 on both sides, so as to realize the positioning of the second wire core 6.

[0081] In this structure, the first wire core 3 is buffered by the elastic wire 2, and the second wire core 6 is buffered by the elastomer 5. The first wire core 3 and the second wire core 6 are arranged at intervals in multiple numbers and are in a circular array. Thus, a buffer structure is formed inside, which can not only resist impact but also effectively improve the stability of the cable in the torsion and bending states, and has good structural performance.

[0082] As Figure 1 and Figure 4 shown, the elastomer 5 is a hollow structure, and the elastomer 5 is connected to the protrusion 102 by injection molding or bonding and fixes the abutting part 21. The diameter of the first wire core 3 is larger than that of the second wire core 6, and the end face circles of the first wire core 3 and the second wire core 6 are tangent to the same virtual circle.

[0083] In the above structure, the elastomer 5 is set as a hollow structure, and it can be made of rubber material by extrusion to provide good elastic recovery effect. In this structure, by controlling the wall thickness of the elastomer 5, the elastic size can be controlled.

[0084] When setting the elastomer 5, the elastomer 5 can also be directly injection molded on the protrusion 102 of the elastic support 1 to fix the abutting part 21, and it also improves the integration convenience. At this time, the elastic support 1 and the elastomer are of an integral structure, which can ensure the stability of the overall structure.

[0085] Among them, the diameter of the first wire core 3 should be larger than that of the second wire core 6. Thus, a relatively suitable elastomer 5 can be accommodated inside the second wire core 6 to make full use of the space.

[0086] AsFigure 7 As shown, the end faces of the first core 3 and the second core 6 are tangent to the same virtual circle;

[0087] This structure makes the layout of the first core 3 and the second core 6 of this cable more regular, facilitating the subsequent setting of functional layers such as a shielding layer and a fireproof layer on the outside.

[0088] As Figure 1 and Figure 2 shown, the buffer layer 7 is made of a foaming material and wraps the surfaces of the first core 3 and the second core 6; the braided layer 8 is wound around the surface of the buffer layer 7 to shape the buffer layer 7 and improve the strength of the composite cable; the nylon rope 9 is arranged between the first core 3 and the second core 6 and is covered by the buffer layer 7; the first cabling layer 10 is arranged on the surface of the braided layer 8;

[0089] In the above structure, in order to fill the gap between the first core 3 and the second core 6, it is filled with a foaming material to form the buffer layer 7, thereby further improving the buffering effect of the cable;

[0090] Specifically, after the first core 3 and the second core 6 are integrated in the cable, it is passed through a cylindrical mold, and a foaming material is injected into the cylindrical mold to form the buffer layer 7, which can ensure that the surface of the buffer layer 7 is relatively regular; in order to avoid the buffer layer 7 adhering to the mold and affecting the normal feeding of the cable, a non-sticky foaming material needs to be used for filling;

[0091] Furthermore, when setting the buffer layer 7, the nylon rope 9 is set to feed synchronously with the first core 3 and the second core 6, so that the buffer layer 7 can cover the nylon rope 9, thereby relying on the nylon rope 9 to improve the tensile strength of the cable;

[0092] After setting the buffer layer 7 for filling, in order to shape the cable, the braided layer 8 is used to cover the buffer layer 7; since the foaming material has relatively soft characteristics, and the feeding length of the braided material of the braided layer 8 is constant per unit time, the buffer layer 7 can be shaped, causing the buffer layer 7 to shrink appropriately, reducing the softness and enhancing the elasticity;

[0093] Finally, the first cabling layer 10 is set on the outside of the braided layer 8 to form the cable. The first cabling layer 10 can be a single-layer or multi-layer structure. When using a multi-layer structure, it can be set as functional layers such as a shielding layer, a fireproof layer, and an armor layer.

[0094] As Figures 1 to 4 shown, the rib 11 is arranged on the outside of the first cabling layer 10, and the rib 11 corresponds to the first core 3; an arc-shaped groove 1101 is arranged on the side of the rib 11 away from the first cabling layer 10 to form two ribs 111, and the ribs 111 correspond to the buffer layer 7; the ribs 111 are hollow structures, and the steel strand 12 is arranged inside the ribs 111;

[0095] In the above structure, in order to further improve the impact resistance of the cable, ribs 11 are also provided on the outer side of the first cable layer 10;

[0096] In this cable, the diameter of the second core 6 is relatively small, and the elastomer 5 inside it can provide a good buffering effect. Therefore, the ribs 11 are arranged corresponding to the first core 3;

[0097] Among them, the rib 11 is provided with an arc groove 1101. The arc groove 1101 corresponds to the first core 3 and forms two ribs 111. When the cable is squeezed, it is the ribs 111 that contact the pressing object. The applied force will not be directly transmitted to the first core 3, but is first transmitted from the ribs 111 to the buffer layer 7, and then from the first core 3 to the elastic wire 2. This improves the buffering ability of the cable and can effectively avoid the problem that the core deforms and cannot return to its original position when using a core composed of multiple stranded bare wires;

[0098] Furthermore, the rib 111 is provided with a hollow structure, which can improve the buffering ability. After a steel strand 12 is arranged inside the rib 111, the tensile resistance of the cable can be improved;

[0099] In some embodiments, the steel strand 12 can also be replaced with a non-metallic material such as a nylon rope.

[0100] As Figure 3 and Figure 4 shown, the groove 101 of the elastic support 1, as well as the first limiting groove 501 and the second limiting groove 502 of the elastomer 5 are all arc-shaped grooves; the arc radius of the cross-section of the groove 101 is smaller than the arc radius of the cross-section of the second limiting groove 502; the arc radius of the cross-section of the first limiting groove 501 is smaller than the arc radius of the cross-section of the groove 101;

[0101] In the above structure, the arc radius of the cross-section of the groove 101 of the elastic support 1 is smaller than the arc radius of the cross-section of the second limiting groove 502, that is, smaller than the diameter of the first core 3. In this way, the second limiting groove 502 can be closely attached to the first core 3, and the groove 101 has enough space to accommodate the bent bearing portion 22;

[0102] At the same time, when an external force is applied to the first core 3, not only the bearing portion 22 buffers, but as the first core 3 moves towards the bottom of the groove 101, due to the larger diameter of the first core 3, pressure will be applied to the protrusions 102 on both sides. At this time, the buffer effect is also achieved by relying on the protrusions 102 on both sides, which improves the buffering performance of the cable;

[0103] The arc radius of the cross-section of the first limiting groove 501 is the smallest, and it is only used to fit the second core 6.

[0104] As Figure 3As shown, the cooling pipeline 4 communicates with the inner cavity of the elastomer 5. Among them, the heat conductor 15 includes a first heat conducting part 151 that fits into the fitting groove 101, and a second heat conducting part 152 that penetrates through the elastic support 1 and extends into the cooling pipeline 4; the heat conductor 15 is spaced apart from the elastic wire 2;

[0105] In the above structure, Figure 3 The dotted line shown in the figure is the communication flow channel between the cooling pipeline 4 and the elastomer 5, realizing the penetration of the cooling pipeline 4 and the elastomer 5. This is applied in some occasions with high heat dissipation requirements. At this time, the cooling pipeline 4 can be used as the cooling medium input pipeline, and through the communication flow channel, it is input into the elastomer 5, and the elastomer 5 is used as the cooling medium output flow channel to improve the heat dissipation effect and simultaneously realize the heat dissipation of the second wire core 6;

[0106] In this structure, one end of each of the cooling pipeline 4 and the elastomer 5 is blocked to realize a reflux cooling structure;

[0107] Furthermore, in order to improve the heat dissipation effect, the elastic support 1 is integrated with a heat conductor 15. Among them, the first heat conducting part 151 of the heat conductor 15 is arranged to fit the groove 101, and one end of the second heat conducting part 152 is connected to the first heat conducting part 151, and the other end directly extends into the cooling pipeline 4 to contact the cooling medium;

[0108] As described above, the heat conductor 15 is made of a metal material. Through the second heat conducting part 152, it can absorb heat better, and rely on the first heat conducting part 151 to realize heat exchange with the liquid cooling medium, thereby improving the heat exchange efficiency and realizing the cooling of the cable.

[0109] The method for preparing the above composite cable includes the following steps:

[0110] S1. Injection molding is carried out on the surface of the cooling pipeline 4 to form the elastic support 1;

[0111] S2. Wind the elastic wire 2 on the surface of the elastic support 1;

[0112] S3. Lay the first wire core 3 on the bearing part 22 of the elastic wire 2;

[0113] S4. Wind the first wire core 3 with a braided material to apply pressure to the first wire core 3, so that the bearing part 22 sinks into the groove 101 to complete the bundling diameter;

[0114] S5. Set a cable layer outside the braided material.

[0115] Embodiment 2:

[0116] The composite cable of this embodiment includes an elastic support 1, elastic wires 2, a first core 3, a cooling pipeline 4, an elastomer 5, a second core 6, a buffer layer 7, a nylon rope 9, ribs 11, a steel strand 12, a heat conductor 15, a covering layer 13, and a second cabling layer 14.

[0117] In the cable structure, the structural layout of the elastic support 1, elastic wires 2, first core 3, cooling pipeline 4, elastomer 5, second core 6, buffer layer 7, nylon rope 9, ribs 11, steel strand 12, and heat conductor 15 is the same as that in the first embodiment.

[0118] As Figure 5 and Figure 6 shown, the second core 6 includes a conductor 61 and an insulating layer 62. Among them, the covering layer 13 surrounds the first core 3 and the second core 6; the surface of the conductor 61 is covered with the insulating layer 62, and the insulating layer 62 and the covering layer 13 are of an integral structure; the second cabling layer 14 is arranged on the surface of the covering layer 13.

[0119] In the cable structure as described above, the second core 6 is not separately provided. The insulating layer 62 outside it and the covering layer 13 are integrally formed by extrusion, and at the same time, the conductor 61 is integrated. It relies on the covering layer 13 to directly contact the buffer layer 7.

[0120] The covering layer 13 is of an annular structure. In some embodiments, the covering layer 13 can also be set as a multi-segment structure. The cross-section of each segment of the covering layer 13 is in an arc structure. An insulating layer 62 is integrated on each segment of the covering layer 13 for accommodating the conductor 61. Then, the second cabling layer 14 is arranged for covering to fix the multi-segment covering layer 13 and improve the strength of the cable.

[0121] The method for manufacturing the above composite cable includes the following steps:

[0122] S1. Injection molding is carried out on the surface of the cooling pipeline 4 to form the elastic support 1.

[0123] S2. The elastic wires 2 are wound around the surface of the elastic support 1.

[0124] S3. The first core 3 is arranged on the bearing part 22 of the elastic wire 2, and a certain pressure is applied to make the bearing part 22 sink into the groove 101.

[0125] S4. The covering layer 13 and the insulating layer 62 are synchronously formed by extrusion in an integral manner, and the insulating layer 62 covers the second core 6, and the covering layer 13 covers the first core 3 and the second core 6.

[0126] S5. A cable layer is arranged outside the wrapping layer 13. The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A composite cable, characterized in that: It comprises an elastic support (1), an elastic wire (2), a first wire core (3) and a cooling pipeline (4), wherein: The elastic support (1) has a star-shaped structure, and the elastic support (1) has a plurality of grooves (101); The elastic wire (2) is wound on the elastic support (1), and the elastic wire (2) comprises a supporting portion (21) supporting the elastic support (1), and a suspended bearing portion (22), the bearing portion (22) is coated with a metal sheet, and a heat insulating layer is provided inside the metal sheet; A plurality of elastic wires (2) are arranged at intervals along the axis of the elastic bracket (1); The first wire core (3) fits the bearing portion (22), and the bearing portion (22) is pressed into the groove (101), with a gap left between the bearing portion (22) and the elastic bracket (1); The cooling pipeline (4) is arranged inside the elastic support (1), and the cooling pipeline (4) is used to circulate a cooling medium to reduce the temperature of the elastic wire (2).

2. The composite cable according to claim 1, characterized in that: It also includes an elastic body (5) and a second wire core (6), the elastic bracket (1) having a protrusion (102) located between the two grooves (101), wherein: The elastic body (5) is arranged in contact with the protrusion (102), and the elastic body (5) has a first limiting groove (501) away from the protrusion (102), and second limiting grooves (502) located on both sides; The first wire core (3) fits into the second limiting groove (502); The second wire core (6) fits the first limiting groove (501) and the second wire core (6).

3. The composite cable according to claim 2, characterized in that: The elastic body (5) is a hollow structure, and the elastic body (5) is connected to the protrusion (102) by injection molding or bonding, and fixes the abutting portion (21); The diameter of the first wire core (3) is greater than the diameter of the second wire core (6), and the end face circles of the first wire core (3) and the second wire core (6) are tangent to the same virtual circle.

4. The composite cable according to claim 2, characterized in that: It also includes a buffer layer (7), a braided layer (8), a nylon rope (9) and a first cabling layer (10), wherein: The buffer layer (7) is a foaming material and is coated on the surface of the first wire core (3) and the second wire core (6); The braided layer (8) is wound on the surface of the buffer layer (7) to shape the buffer layer (7) and improve the strength of the composite cable; The nylon rope (9) is arranged between the first wire core (3) and the second wire core (6), and is covered by the buffer layer (7); The first cabling layer (10) is arranged on the surface of the braided layer (8).

5. The composite cable according to claim 4, characterized in that: It also includes ribs (11) and steel strands (12), wherein the ribs (11) are arranged on the outside of the first cabling layer (10), and the ribs (11) correspond to the first wire cores (3); An arc-shaped groove (1101) is provided on a side of the rib (11) away from the first cabling layer (10) to form two convex ribs (111), and the convex ribs (111) correspond to the buffer layer (7); The convex rib (111) is a hollow structure, and the steel strand (12) is arranged inside the convex rib (111).

6. The composite cable according to claim 2, characterized in that: It also includes a coating layer (13) and a second cabling layer (14), the second core (6) includes a conductor (61) and an insulating layer (62), wherein: The coating layer (13) surrounds the first wire core (3) and the second wire core (6); The surface of the conductor (61) is coated with the insulating layer (62), and the insulating layer (62) and the coating layer (13) are an integrated structure; The second cabling layer (14) is arranged on the surface of the coating layer (13).

7. The composite cable according to any one of claims 2 to 6, characterized in that: The groove (101) of the elastic bracket (1), and the first limiting groove (501) and the second limiting groove (502) of the elastic body (5) are all arc-shaped grooves; The cross-sectional arc radius of the groove (101) is smaller than the cross-sectional arc radius of the second limiting groove (502); The cross-sectional arc radius of the first limiting groove (501) is smaller than the cross-sectional arc radius of the groove (101).

8. The composite cable according to any one of claims 2 to 6, characterized in that: It also includes a heat conductor (15), the cooling pipeline (4) is connected to the inner cavity of the elastic body (5), wherein: The heat conductor (15) comprises a first heat conducting portion (151) which fits the groove (101), and a second heat conducting portion (152) which penetrates the elastic bracket (1) and extends into the cooling pipeline (4); The heat conductor (15) is spaced apart from the elastic wire (2).

9. A method for preparing a composite cable according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, performing injection molding on the surface of the cooling pipeline (4) to form the elastic bracket (1); S2, winding the elastic wire (2) on the surface of the elastic support (1); S3, arranging the first wire core (3) on the bearing portion (22) of the elastic wire (2); S4, winding the first wire core (3) with a braided material to apply pressure to the first wire core (3), thereby causing the bearing portion (22) to be recessed into the groove (101), thereby completing the bundle diameter; S5. A cable layer is arranged on the outside of the braided material.

10. A method for preparing the composite cable according to claim 6, characterized in that: The following steps are involved: S1, performing injection molding on the surface of the cooling pipeline (4) to form the elastic bracket (1); S2, winding the elastic wire (2) on the surface of the elastic support (1); S3, arranging the first wire core (3) on the bearing portion (22) of the elastic wire (2), and applying a certain pressure so that the bearing portion (22) is recessed into the groove (101); S4, forming the integral coating layer (13) and the insulating layer (62) simultaneously by extrusion, wherein the insulating layer (62) covers the second wire core (6), and the coating layer (13) covers the first wire core (3) and the second wire core (6); S5. Arrange a cable layer on the outside of the coating layer (13).

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