A multi-row ultra-flexible cable and its processing mold

Abstract

The present application relates to the field of cable technology, and in particular to a multi-row ultra-flexible cable and its processing mold. By designing a plurality of arranged conductors and a cross-linked polyethylene layer covering the conductors, the plurality of conductors are arranged equidistantly, and the cross-linked polyethylene layer is integrally covered on the plurality of conductors. The cross-linked polyethylene layer has high flame retardancy, and the average thickness of the cross-linked polyethylene layer is 0.5±0.1mm, which can be used in complex scenes with small space and high temperature, and can meet the withstand voltage of 10KV at the same time. The softness and high structural strength of the wire can meet the customer's arbitrary processing. The cross-linked polyethylene layer can be peeled off at one time during construction, which can meet the requirement of peeling off 100mm cable insulation at one time, greatly reducing the difficulty of installation and reducing costs.

Description

Technical Field

[0001] The present application relates to the field of cable technology, and in particular to a multi-row ultra-flexible cable and a processing mold thereof. Background Art

[0002] The internal space of high-power power supply units on the market is limited, and the heat dissipation is poor. Two to three or more cables are often required to complete the current transmission. This makes installation more difficult and the internal layout is strict. The insulation adhesion of large-size cables is generally large, and when the insulation peels, it can only be processed in multiple times, increasing product costs. Utility Model Content

[0003] In order to solve the above technical problems, the present application provides a multi-row ultra-flexible cable, comprising a plurality of arranged conductors and a cross-linked polyethylene layer covering the conductors, wherein the plurality of conductors are arranged equidistantly, and the cross-linked polyethylene layer is integrally covered on the plurality of conductors, and the average thickness of the cross-linked polyethylene layer is 0.5±0.1 mm.

[0004] Preferably, the center distance D between two adjacent conductors is 2.6±0.1 mm.

[0005] Preferably, the conductor comprises a plurality of twisted tinned copper wires, and the twisting pitch is 38-42 mm.

[0006] Preferably, the diameter of the tinned copper wire is 0.127 mm.

[0007] Preferably, the minimum thickness of the cross-linked polyethylene layer is 0.4 mm.

[0008] Preferably, the eight conductors are arranged equidistantly.

[0009] Preferably, a processing mold is used to assist in processing the above-mentioned multi-row ultra-flexible cables, including a template, wherein the template is provided with a plurality of wire holes arranged equidistantly for the conductors to pass through, and the size and number of the wire holes match the conductors.

[0010] Preferably, a flaring groove is formed on the side surface of the template at the entrance end of the wire hole.

[0011] Preferably, strip grooves are provided on both sides of the arrangement direction of the wire holes.

[0012] From the above, it can be seen that the application provided by the present application can obtain the following beneficial effects: by designing a plurality of arranged conductors and a cross-linked polyethylene layer covering the conductors, the plurality of conductors are arranged equidistantly, and the cross-linked polyethylene layer is integrally covered on the plurality of conductors. The cross-linked polyethylene layer has high flame retardant properties, and the average thickness of the cross-linked polyethylene layer is 0.5±0.1mm, which can be used in complex scenes with small space and high temperature, and can meet the withstand voltage of 10KV. The softness and high structural strength of the wire can meet the customer's arbitrary processing. The cross-linked polyethylene layer can be peeled off at one time during construction, which can meet the requirement of peeling off 100mm cable insulation at one time, greatly reducing the difficulty of installation and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the description of the embodiments of the present application or the prior art are briefly introduced below. Obviously, the drawings described below are only part of the embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0014] Figure 1 This is a schematic diagram of a multi-row ultra-flexible cable according to an embodiment of the present application;

[0015] Figure 2 The structure diagram of the mold for processing the embodiment of the present application;

[0016] Figure 3 A cross-sectional view of a mold for processing an embodiment of the present application;

[0017] Figure 4 This is a structural diagram of the refueling fixture in accordance with an embodiment of the present application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] Example

[0020] In order to solve the above technical problems, the present embodiment provides a multi-row ultra-flexible cable, comprising a plurality of arranged conductors 10 and a cross-linked polyethylene layer 20 covering the conductors 10, wherein the plurality of conductors 10 are arranged equidistantly, and the cross-linked polyethylene layer 20 is integrally covered on the plurality of conductors 10, and the cross-linked polyethylene layer 20 has high flame retardant properties, and the average thickness of the cross-linked polyethylene layer 20 is 0.5±0.1 mm, so that the cable has a certain degree of softness and can be used in complex scenes with small space and high temperature, and can meet the withstand voltage of 10KV. The softness and high structural strength of the wire can meet the customer's arbitrary processing. The cross-linked polyethylene layer 20 can be peeled off at one time during construction, which can meet the requirement of peeling off 100 mm of cable insulation at one time, greatly reducing the difficulty of installation and reducing costs.

[0021] In the above scheme, the center distance D between two adjacent conductors 10 is 2.6±0.1 mm. Among them, 8 conductors 10 are arranged equidistantly. A layer of cross-linked polyethylene layer 20 is extruded on the outer periphery of the 8 conductors 10 at the same time, so that the cross-linked polyethylene layer 20 is integrally coated on several conductors 10, ensuring the stability and reliability of the wire material, and can be peeled off at one time to reduce the difficulty of installation.

[0022] Further, the conductor 10 includes a plurality of twisted tinned copper wires, and the twist pitch is 38-42 mm. The diameter of the tinned copper wire is 0.127 mm. The thin conductor can improve the flexibility, so that the finished cable meets the flexibility requirements. In some embodiments, the conductor 10 is formed by twisting 105 tinned copper wires.

[0023] The average thickness of the cross-linked polyethylene layer 20 is 0.5±0.1 mm, and the minimum thickness of the cross-linked polyethylene layer 20 is 0.4 mm, which ensures that the entire wire can withstand a 10KV withstand voltage test.

[0024] In the above scheme, before the cross-linked polyethylene layer 20 is extruded on the periphery of the multiple conductors 10, it is necessary to control the spacing between the multiple conductors 10 and attach silicone oil to the surface of the conductors 10. If the 8 conductors 10 are not dispersed, the conductors 10 will directly stick together, and the adhesion of the finished product is extremely unstable. To this end, this embodiment also provides a processing mold for assisting the processing of the above-mentioned multi-row ultra-flexible cable, including a template 30, the template 30 is provided with a plurality of equidistantly arranged wire holes 31 for the conductors 10 to pass through, the size and number of the wire holes 31 match the conductors 10, and then the conductors are limited by the template 30 with the wire holes 31, so that the multiple conductors 10 are dispersed, which is convenient for the subsequent attachment of silicone oil on the surface of the conductors 10, and then a layer of cross-linked polyethylene layer 20 is extruded on the periphery of the multiple conductors 10.

[0025] Furthermore, a flared groove 32 is formed on the side of the template 30 at the entrance end of the wire hole 31, which facilitates the insertion of the twisted conductor 10 into the wire hole 31 and maintains the stability of the conductor 10. Alternatively, strip grooves 33 are provided on both sides of the arrangement direction of the wire holes 31, and when the template 30 is installed, the strip grooves 33 can be used for positioning and installation to ensure the accuracy of the installation position of the template 30.

[0026] Further, such as Figure 4 The figure shows a refueling jig 40 for attaching silicone oil to the surface of the conductor 10. A through hole 41 for each conductor 10 to pass through is provided on one end face of the refueling jig 40. After the eight conductors 10 pass through the template 30, they enter the refueling jig 40 from the through hole 41 of the refueling jig 40. In some embodiments, a plurality of nozzles for spraying oil are connected to the outer peripheral surface of the refueling jig 40, so as to attach silicone oil to the conductor 10 entering the refueling jig 40, thereby ensuring the quality of the subsequently extruded insulating layer.

[0027] In summary, this solution designs several arranged conductors and a cross-linked polyethylene layer covering the conductors. The several conductors are arranged equidistantly, and the cross-linked polyethylene layer is integrally covered on the several conductors. The cross-linked polyethylene layer has high flame retardant properties, and the average thickness of the cross-linked polyethylene layer is 0.5±0.1mm, which can be used in complex scenes with small space and high temperature, and can meet the withstand voltage of 10KV. The softness and high structural strength of the wire can meet the customer's arbitrary processing. The cross-linked polyethylene layer can be peeled off at one time during construction, which can meet the requirement of peeling off 100mm cable insulation at one time, greatly reducing the difficulty of installation and reducing costs.

[0028] The above-described implementation methods do not constitute a limitation on the protection scope of the technical solution. Any modification, equivalent replacement and improvement made within the spirit and principle of the above-described implementation methods shall be included in the protection scope of the technical solution.

Claims

1. A multi-row ultra-flexible cable, characterized in that: The invention comprises a plurality of conductors (10) arranged in an arranged manner, and a cross-linked polyethylene layer (20) covering the conductors (10), wherein the plurality of conductors (10) are arranged at equal intervals, and the cross-linked polyethylene layer (20) is integrally covered on the plurality of conductors (10), and the average thickness of the cross-linked polyethylene layer (20) is 0.5±0.1 mm.

2. The multi-row ultra-flexible cable according to claim 1, characterized in that: The center distance D between two adjacent conductors (10) is 2.6±0.1 mm.

3. The multi-row ultra-flexible cable according to claim 1, characterized in that: The conductor (10) comprises a plurality of twisted tinned copper wires, the twisting pitch of which is 38-42 mm.

4. The multi-row ultra-flexible cable according to claim 3, characterized in that: The diameter of the tinned copper wire is 0.127 mm.

5. The multi-row ultra-flexible cable according to claim 1, characterized in that: The minimum thickness of the cross-linked polyethylene layer (20) is 0.4 mm.

6. The multi-row ultra-flexible cable according to claim 1, characterized in that: The eight conductors (10) are arranged at equal distances.

7. A processing mold for assisting in processing the multi-row ultra-flexible cable according to any one of claims 1 to 6, characterized in that: The template (30) comprises a plurality of wire holes (31) arranged at equal distances and for the conductor (10) to pass through, wherein the size and number of the wire holes (31) match those of the conductor (10).

8. The processing mold according to claim 7, characterized in that: An expansion groove (32) is formed on the side of the template (30) at the entrance end of the wire hole (31).

9. The processing mold according to claim 7, characterized in that: Strip grooves (33) are provided on both sides of the arrangement direction of the wire holes (31).

Images