A polyimide composite smooth insulated cable and cable wrapping equipment thereof

Abstract

The present invention relates to the field of cable technology, and provides a polyimide composite smooth insulated cable and its cable wrapping equipment, including: a cable and a retainer, the cable core inside the cable is inserted into the interior of the retainer for guiding and cooperating with production operations; a plurality of heat collection layers, evenly distributed around the cable core on the outside of the wrapping layer, a plurality of arc-shaped pads, corresponding to the heat collection layers along the axial direction of the cable core, and a plurality of heat insulation pads, located on the outside of the arc-shaped pads to seal it inside. The present invention can directly gather and isolate the heat generated inside the cable, and then release it outward in a concentrated manner to achieve the effect of rapid heat dissipation, so as to prevent heat accumulation from accelerating the aging of the insulating material, thereby extending the service life of the cable. Secondly, the heat dissipation component can be conveniently assembled on the outside of the cable core after the wrapping process, and then fixed to the inside of the cable during the extrusion process. Its assembly structure is simple and can be adapted to large-scale production applications.

Description

Technical Field

[0001] The invention relates to the field of cables, and more specifically, to a polyimide composite smooth insulated cable and a cable wrapping device thereof. Background Art

[0002] Polyimide composite smooth insulated cable is a cable with extremely high thermal stability, electrical insulation, mechanical strength and other properties. It is widely used in aerospace, automotive, electronics, military and other fields. In the production of this type of cable, a wrapping machine is often used to wrap the internal conductor with tape, that is, a layer of tape is wrapped around the outside of the conductor to make the adjacent monomers tightly and neatly wound together, which can make the wire cylindrical and prevent the wire from loosening.

[0003] At present, it is found in the actual application of polyimide composite smooth insulated cable that although it has certain heat resistance, the heat converted from electric energy and the heat generated by friction during repeated startup and continuous operation of the internal cable core will cause the insulation material to be heated for a long time. The long-term heating will cause various physical and chemical changes in the insulation material, causing it to gradually age and fail.

[0004] In order to solve the above problems, the present application proposes a polyimide composite smooth insulated cable and a cable wrapping device thereof. Summary of the invention

[0005] The object of the present invention is to provide a polyimide composite smooth insulated cable and a cable wrapping device thereof, which can solve the problems in the prior art by concentrating the heat generated by the cable body to prevent it from diffusing in the insulating material and releasing it outward in a centralized manner.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A polyimide composite smooth insulated cable, comprising:

[0008] Cable and cage, the cable core inside the cable is passed through the inside of the cage for guidance and production operation;

[0009] Multiple heat collecting layers are evenly distributed around the cable core on the outside of the wrapping layer, multiple arc pads are corresponding to the heat collecting layers along the axial direction of the cable core, and multiple heat insulating pads are located on the outside of the arc pads to seal them inside. The heat is absorbed by the heat collecting layer and transferred through the arc pads, and finally released outwards by the heat dissipation block inside the heat insulating pads to achieve the effect of heat discharge;

[0010] It also includes a fixing frame, and a plurality of positioning frames are distributed on one side of the upper end of the fixing frame along the axial direction of the cable core;

[0011] A plurality of positioning rollers are distributed above and below the cable core corresponding to the positioning frame to form a clamp, and the arc surface inside the positioning rollers is used to form a trimming effect on the wrapping layer, the heat collecting layer, the arc pad and the heat insulation pad.

[0012] Through the above technical solution, the heat generated by the cable core is absorbed by the heat collection layer and transferred outward through the thermal pad, and finally released to the outside by the heat dissipation block. Compared with existing cables, the heat can be discharged quickly to prevent accelerated aging of the insulation material.

[0013] A plurality of positioning protrusions are located in the outer region adjacent to both sides of the heat collecting layer;

[0014] A plurality of transition parts are located on both sides of the arc-shaped pad to limit the heat collection layer and the heat insulation pad to a parallel state;

[0015] The positioning protrusion is engaged with the positioning area on the inner side of the lower end of the adapter portion to form a butt joint.

[0016] Through the above technical solution, through the snap-fit ​​connection between the positioning protrusion and the positioning area, the heat collecting pad and the arc pad can be conveniently combined together when laying the two to maintain the structural stability during the transportation process.

[0017] The middle layer area and the outer layer area of ​​the transition part are respectively provided with a storage area and a docking area, and the docking area is docked with the thermal insulation pad.

[0018] Through the above technical solution, the heat is blocked by the heat insulation pad, so that the heat is transferred in the inner area and withstands changes such as temperature rise, so that the structure of the insulating material can remain stable and unaffected.

[0019] The thermal conductive pad is distributed on the inner side of the thermal insulation pad and connected to the storage area, and absorbs the heat transferred by the arc pad and transfers it to the heat dissipation block.

[0020] Through the above technical solution, the heat generated inside can be quickly transferred outward using the thermal pad to prevent the heat from accumulating in the internal teeth, thereby achieving the effect of controlling the internal temperature.

[0021] The heat collecting layer, the arc-shaped pad and the heat insulating pad are extruded together with the cable core and the wrapping layer, so that the insulating material forms a coating layer between adjacent heat dissipating blocks.

[0022] Through the above technical solution, the heat collecting layer, the arc pad and the heat insulating pad can be conveniently assembled inside the cable, which is suitable for frequent operation of the cable.

[0023] Isolation pads are provided on both sides of the heat dissipation block and docked with the thermal insulation pads. When in use, the internal heat is isolated by the thermal insulation pads and the isolation pads to prevent the heat dissipation block from being transferred to prevent accelerated aging.

[0024] Through the above technical solution, the insulating material is wrapped in reverse so that it is not affected by the internal heat.

[0025] A plurality of shaft seats correspond to the positioning frames and drive the positioning rollers to rotate through a built-in transmission belt mechanism. A transfer seat is arranged at the lower end position between adjacent positioning frames and docked with the shaft seats.

[0026] Through the above technical solution, the arc surface on the inner side of the positioning roller is utilized to enable the heat collecting layer, the arc pad and the heat insulating pad to quickly form a butt joint after laying, so as to wrap the conductor of the cable and achieve the effect of trimming the appearance.

[0027] A plurality of transmission rollers are fixedly mounted on the positioning rollers corresponding to the rotation angle positions of the transmission mechanism inside the shaft seat.

[0028] Through the above technical solution, adjacent positioning rollers are allowed to rotate simultaneously to press against the cable assembly structure.

[0029] A plurality of transmission seats are distributed inside the upper and lower ends along the longitudinal direction of the positioning frame, and the transmission rollers are rotatably installed.

[0030] A polyimide composite smooth insulated cable wrapping device comprises a wrapping machine for producing the above-mentioned cable.

[0031] Beneficial effects of the present invention:

[0032] During operation, the heat generated by the cable core is absorbed by the heat collecting layer and transferred to the outside through the thermal pad, and finally released to the outside by the heat dissipation block. In this process, the heat is isolated and prevented from being transferred to the thermal pad by the adapter, thermal insulation pad and isolation pad. Compared with the existing cables, the heat can be quickly discharged without affecting the cable insulation material, so as to prevent the accelerated aging of the insulation material.

[0033] When producing cables, after the wrapping layer is wrapped, the heat collecting layer, the arc pad and the heat insulating pad are placed on the outside of the cable core in turn by using the external winding mechanism, and then the cable core is wrapped by the extrusion limit of the arc surface, and finally the extrusion operation is performed together to form a coating layer to fill the gap between adjacent heat dissipation blocks to form the production of the cable. After this arrangement, the functional components can be assembled inside the cable, so that the cable has a more superior performance in the use environment;

[0034] When the arc surface squeezes the heat collecting layer, the arc pad and the thermal insulation pad, it also forms an extrusion limit on the wrapping layer, so that its surface and the raised part of the edge of the wrapping tape are restored to smoothness and fit to the cable core, achieving the effect of surface finishing to improve the production quality of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0037] Figure 2 for Figure 1 Schematic diagram of the appearance structure of one end of the cable;

[0038] Figure 3 for Figure 1 Schematic diagram of cable cross-section structure in;

[0039] Figure 4 for Figure 1 Schematic diagram of the structure of the heat collecting layer, arc pad and thermal insulation pad in the decomposed state;

[0040] Figure 5 for Figure 1 A schematic diagram of the structure of the fixing frame and the cable connection part;

[0041] Figure 6 for Figure 1 Schematic diagram of the appearance structure of the fixing frame;

[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0043] In the figure: 1. Cable; 2. Taping machine; 3. Cage; 4. Fixing frame;

[0044] 101, cable core; 1011, coating layer; 1012, wrapping layer;

[0045] 102, heat collecting layer; 1021, positioning protrusion;

[0046] 103, arc pad; 1031, adapter; 1032, storage area; 1033, docking area; 1034, positioning area;

[0047] 104, thermal insulation pad; 1041, heat sink; 1042, thermal conductive pad; 1043, isolation pad;

[0048] 401, positioning frame; 4011, shaft seat; 4012, adapter seat;

[0049] 402, positioning roller; 4021, arc surface; 4022, transmission roller; 4023, transmission seat. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] See also Figure 1-6 , the present invention provides an embodiment:

[0052] Reference Figure 1 and Figure 2 A polyimide composite smooth insulated cable comprises: a cable 1 and a retainer 3, wherein a cable core 101 inside the cable 1 is inserted into the retainer 3 for guiding and cooperating with production operations;

[0053] A plurality of heat collecting layers 102 are evenly distributed around the cable core 101 on the outside of the wrapping layer 1012; a plurality of arc pads 103 correspond to the heat collecting layers 102 along the axial direction of the cable core 101; a plurality of heat insulating pads 104 are located on the outside of the arc pads 103 to seal them inside, so that the heat collecting layers 102, the arc pads 103 and the heat insulating pads 104 are distributed on the outside of the cable core 101 in a layered manner inside and outside. At this time, the heat collecting layer 102 adjacent to the cable core 101 in the inner layer absorbs heat, and the heat is transferred through the arc pads 103 located in the middle layer, and finally released outwardly by the heat dissipation block 1041 inside the outer heat insulating pad 104 to achieve the effect of heat discharge;

[0054] It also includes a fixing frame 4, on the inner side of the upper end of which a plurality of positioning frames 401 are installed along the axial direction of the cable core 101, and the segmented installation corresponds to the bending part when the heat collecting layer 102, the arc pad 103 and the heat insulation pad 104 are laid, so as to form a limit for them to facilitate assembly and use;

[0055] A plurality of positioning rollers 402 are located at the upper and lower ends of the inner side of the positioning frame 401 to clamp the cable core 101 at the top and bottom. The internal arc surface 4021 can be used to trim the wrapping layer 1012, the heat collecting layer 102, the arc pad 103 and the insulation pad 104, so that the raised parts can be restored to a smooth inward fit.

[0056] Reference Figure 3 and Figure 4 Positioning protrusions 1021 are provided in the adjacent outer regions on both sides of the heat collecting layer 102; transition parts 1031 are provided on both sides of the arc pad 103 to limit the heat collecting layer 102 and the thermal insulation pad 104 to a state parallel to the axis of the cable core 101; the positioning protrusion 1021 is engaged with the positioning area 1034 on the inner side of the lower end of the transition part 1031 to form a docking.

[0057] Reference Figure 3 and Figure 4A storage area 1032 and a docking area 1033 are provided inside the transition portion 1031, which are located in the middle layer area and the outer layer area respectively, and the docking area 1033 is docked with the thermal insulation pad 104, so that the internal space is covered to isolate the heat from being transferred outwardly.

[0058] Reference Figure 3 and Figure 4 A thermal conductive pad 1042 is provided on the inner side of the thermal insulation pad 104 and docked with the storage area 1032 to absorb the heat transferred by the arc pad 103 and transfer it to the heat dissipation block 1041 to achieve the effect of dissipating the internal heat.

[0059] Reference Figure 3 and Figure 4 The heat collecting layer 102, the arc pad 103 and the thermal insulation pad 104 are extruded together with the cable core 101 and the sheath 1012, so that the insulating material forms a coating layer 1011 between adjacent heat dissipation blocks 1041. At this time, the heat collecting layer 102, the arc pad 103 and the thermal insulation pad 104 can be assembled inside the cable 1 to improve the functionality of the cable 1 to adapt to the working environment.

[0060] Reference Figure 3 and Figure 4 The isolation pads 1043 are arranged on both sides of the heat dissipation block 1041 and connected to the thermal insulation pad 104. When in use, the internal space can be closed by the fixed connection between the thermal insulation pad 104 and the isolation pad 1043, thereby isolating the internal heat from being transferred to the heat dissipation block 1041 to prevent the accelerated aging of the insulating material.

[0061] Reference Figure 6 An axle seat 4011 is provided on the outer side of the positioning frame 401, and the positioning roller 402 is driven to rotate by the built-in transmission mechanism of the axle seat 4011. A transfer seat 4012 is provided at the lower end position between adjacent positioning frames 401 to connect to the axle seat 4011 to drive the transmission mechanism inside the adjacent axle seat 4011 to rotate together.

[0062] Reference Figure 6 The transmission roller 4022 inside the positioning roller 402 corresponds to the internal transmission mechanism of the shaft seat 4011, and forms a docking with the corner parts at the upper and lower ends thereof, so that adjacent positioning rollers 402 can rotate simultaneously to maintain the same clamping force on the cable core 101 at the upper and lower ends.

[0063] Reference Figure 5 There are multiple transmission seats 4023 distributed inside the upper and lower ends of the positioning frame 401 along the longitudinal direction, and the other end of the transmission roller 4022 is rotatably installed inside the transmission seat 4023.

[0064] Reference Figure 1 , a wrapping machine 2, produces the cable 1 as mentioned above.

[0065] It can be understood that the present invention can directly gather and isolate the heat generated inside the cable 1, and then release it outward in a concentrated manner to achieve the effect of rapid heat dissipation, so as to prevent heat accumulation from accelerating the aging of the insulating material, thereby extending the service life of the cable 1. Secondly, the heat dissipation component can be conveniently assembled on the outside of the cable core 101 after the wrapping process, and then fixed to the inside of the cable 1 during the extrusion process. Its simple assembly structure can be adapted to large-scale production applications.

[0066] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicate orientation or positional relationship, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0067] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A polyimide composite smooth insulated cable, characterized in that: include: A cable (1) and a retaining frame (3), wherein the cable core (101) inside the cable (1) is inserted into the interior of the retaining frame (3) for guidance and coordination in production operations; A plurality of heat collecting layers (102) are evenly distributed around the cable core (101) on the outside of the wrapping layer (1012); a plurality of arc pads (103) are arranged along the axis of the cable core (101) and correspond to the heat collecting layers (102); a plurality of heat insulating pads (104) are arranged on the outside of the arc pads (103) to seal the arc pads inside; heat is absorbed by the heat collecting layer (102), transferred through the arc pads (103), and finally released outwardly by the heat dissipation block (1041) inside the heat insulating pads (104), so as to achieve the effect of heat discharge; A plurality of positioning protrusions (1021) are located in the outer layer regions adjacent to both sides of the heat collection layer (102); A plurality of transition portions (1031) are located on both sides of the arc-shaped pad (103) to limit the heat collection layer (102) and the heat insulation pad (104) to a parallel state; The positioning protrusion (1021) is engaged with the positioning area (1034) on the inner side of the lower end of the adapter portion (1031) to form a butt connection; The heat-conducting pad (1042) is distributed on the inner side of the heat-insulating pad (104) and connected to the storage area (1032), absorbing the heat transferred by the arc-shaped pad (103) and transferring it to the heat-dissipating block (1041); It also includes a fixing frame (4), and a plurality of positioning frames (401) are distributed on one side of the upper end of the fixing frame (4) along the axial direction of the cable core (101); A plurality of positioning rollers (402) are distributed above and below the cable core (101) corresponding to the positioning frame (401) to form a clamp, and the arc-shaped surface (4021) inside the positioning rollers (402) is used to form a trimming effect on the wrapping layer (1012), the heat collection layer (102), the arc-shaped pad (103), and the heat insulation pad (104).

2. A polyimide composite smooth insulated cable according to claim 1, characterized in that: The middle layer area and the outer layer area of ​​the transition portion (1031) are respectively provided with a storage area (1032) and a docking area (1033), and the docking area (1033) is docked with the thermal insulation pad (104).

3. A polyimide composite smooth insulated cable according to claim 1, characterized in that: The heat collecting layer (102), the arc-shaped pad (103), and the heat insulating pad (104) are extruded together with the cable core (101) and the wrapping layer (1012), so that the insulating material forms a coating layer (1011) between adjacent heat dissipation blocks (1041).

4. A polyimide composite smooth insulated cable according to claim 1, characterized in that: Isolation pads (1043) are provided on both sides of the heat dissipation block (1041) and are butted against the heat insulation pad (104); when in use, the heat insulation pad (104) and the isolation pad (1043) isolate internal heat from being transferred to the heat dissipation block (1041) to prevent accelerated aging.

5. A polyimide composite smooth insulated cable according to claim 1, characterized in that: A plurality of shaft seats (4011) corresponding to the positioning frames (401) drive the positioning rollers (402) to rotate via a built-in transmission belt mechanism, and a transfer seat (4012) is provided at the lower end position between adjacent positioning frames (401) and docked with the shaft seats (4011).

6. A polyimide composite smooth insulated cable according to claim 1, characterized in that: A plurality of transmission rollers (4022) are fixedly mounted on the positioning roller (402) corresponding to the rotation angle positions of the transmission mechanism inside the shaft seat (4011).

7. A polyimide composite smooth insulated cable according to claim 1, characterized in that: A plurality of transmission seats (4023) are distributed inside the upper and lower ends along the longitudinal direction of the positioning frame (401) and are rotatably mounted on the transmission rollers (4022).

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