CN105609191B8 - It is a kind of to can be used to display whether in running order cable - Google Patents

Abstract

The invention belongs to electric power and technical field of cables, can be used to display whether in running order cable more particularly, to a kind of, include electric conductor, extrusion molding and be coated on conductive external insulating barrier；It is characterized in that by weight, the insulating barrier is made up of the raw material of following content：Low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or polypropylene：50~80 parts, Tissuemat E：5~8 parts, commercially available heat discoloration powder：3~5 parts, guanidine carbonate：1~2 part, the cable jacket material antioxidant of commercially available model 1010：0.5~1 part, industrial 1# or 2# or 3# white oils：3~5 parts.The present invention has following main beneficial effect：Cable work state can be clearly displayed, not need extra load to aid in display, do not need instrument and meter, more electric power saving.

Description

A cable that can be used to show whether it is in working condition

[0001] This application is a divisional application for an invention patent named: a cable that can display whether it is in working condition, the application date is: August 27, 2014, and the application number is 201410426837.2.

Technical field

[0002] The present invention belongs to the field of power and cable technology, and particularly relates to a cable that can be used to display whether it is in a working state.

Background technique

[0003] In the prior art, whether the cable is in a working state is realized by the connected equipment, such as installing a light bulb, electrical appliances, load, etc. at the end of the cable. For maintenance personnel, it is usually necessary to know whether the cable is in working condition. When the equipment is not connected, it is usually realized by instruments and meters; therefore, it is very inconvenient.

Summary of the invention

[0004] In order to solve the above problems, the purpose of the present invention is to disclose a cable that can be used to display whether it is in a working state, which is achieved by the following technical solutions.

[0005] In the embodiment 1 of the present invention, a cable that can be used to display whether it is in working state includes a conductor 2, an insulating layer 1 extruded and coated on the conductor body; it is characterized in that it is calculated by weight, so The insulating layer is composed of the following raw materials: low-density polyethylene or medium-density polyethylene or high-density polyethylene or polypropylene: 50~80 parts, polyethylene wax: 5~8 parts, commercially available thermochromic powder: 3 ~5 parts, guanidine carbonate: 1~2 parts, commercially available model 1010 for cable sheathing material antioxidant: 0.5~1 part, industrial 1# or 2# or 3# white oil: 3~5 parts.

[0006] In the second embodiment of the present invention, a cable that can be used to display whether it is in a working state includes two insulated wires placed in parallel, and the insulated wires are covered with a sheath 3; it is characterized in that the protective The jacket layer is divided into two enclosed spaces on the left and right by the spacer 4, and the two insulated wires are respectively located in the two enclosed spaces. The spacer and the sheath layer are an integrated structure. The right side of the strip has multiple right-side holes; each insulated wire is composed of a conductor 2, an insulating layer 1 extruded and coated on the conductor body; the material of the sheath layer is polyethylene or polypropylene or polytetrafluoroethylene Ethylene or polyvinyl chloride; or in parts by weight, the insulating layer is composed of raw materials with the following content: low-density polyethylene or medium-density polyethylene or high-density polyethylene or polypropylene: 50~80 parts, polyethylene wax: 5~8 parts, commercially available thermochromic powder: 3~5 parts, guanidine carbonate: 1~2 parts, commercial type 1010 antioxidant for cable sheath material...^~丨parts, industrial 1# or 2# or 3# white oil: 3 to 5 servings.

[0007] In Embodiment 3 of the present invention, a cable that can be used to display whether it is in working condition includes three insulated wires placed in parallel, and the insulated wires are covered with a sheath layer 3; it is characterized in that the sheath The layer is divided into three enclosed spaces by three spacers 4, and the three insulated wires are respectively located in the three enclosed spaces. The spacers and the sheath layer are formed separately but connected as an integral structure. The left side of each spacer There are multiple left-side holes, and the right side of each spacer has multiple right-side holes; one of each spacer is connected with the sheath layer, and the other end of each spacer is connected to each other; each insulated wire consists of Conductor 2, an insulating layer 1 extruded and coated on the conductive body; the material of the sheath layer is polyethylene or polypropylene or polytetrafluoroethylene or polyvinyl chloride; or in parts by weight, the insulating layer Consists of the following content of raw materials: low-density polyethylene or medium-density polyolefin or high-degree polyethylene or polypropylene: 50~80 parts, polyethylene wax: 5~8 parts, commercially available thermochromic powder: 3 ~5 parts, guanidine carbonate: 1~2 parts, commercially available model 1010 for cable sheathing material antioxidant: 0.54 parts, industrial use 2蜮3# white oil: 3~5 parts.

[°008] In the embodiment 4 of the present invention, a cable that can be used to display whether it is in working condition includes three parallel insulated wires, and the insulated wires are covered with a sheath 3; it is characterized in that the The sheath layer is divided into three enclosed spaces by three spacers 4, and the three insulated wires are respectively located in the three enclosed spaces. The spacers and the sheath layer are an integral structure, and the left side of each spacer There are two left holes, and the right side of each spacer has multiple right holes; one end of each spacer is connected to the sheath layer, and the other end of each spacer is connected to each other; each insulated wire consists of a conductor 2 , Extruded and covered with an insulating layer 1 outside the conductor; the material of the sheath layer is polyethylene or polypropylene or polytetrafluoroethylene or polyvinyl chloride; or in parts by weight, the insulating layer consists of the following content The composition of raw materials: low-density polyethylene or medium-density polyethylene or high-density polyethylene or polypropylene: 50~80 parts, polyethylene wax: 5~8 parts, commercially available thermochromic powder: 3~5 parts, carbonic acid Guanidine: 1 to 2 parts, commercially available model 1010, antioxidant for cable sheath materials: 0.5 to 1 part, industrial 1# or 2# or 3# white oil: 3 to 5 parts.

[0009] ^ Of course, the above-mentioned one can be used to display whether the cable is in working condition, or it can contain other multiple insulated wires placed in parallel, with other multiple spacers, and all the spacers will be sheathed. The inner space is divided into a plurality of enclosed spaces, and the plurality of insulated wires are respectively located in the plurality of enclosed spaces.

[0010] In the present invention, due to the special composition of the insulating layer material, the cable will emit heat when it is in working condition, causing the insulating layer to change color, and achieve the identification function. The insulating layer can be observed from the left and right holes. The discoloration of the cable does not need to be stripped of the cable sheath; of course, it also avoids the function of load identification and the possible electric shock caused by touching the cable with your hand.

[0011] Therefore, the present invention has the following main beneficial effects: the working status of the cable can be clearly displayed, no additional load auxiliary display is required, no instruments and meters, and more power saving.

Description of the drawings

[0012] FIG. 1 is a schematic diagram of a three-dimensional structure after dissection of a section of Example 1 of the present invention.

[0013] FIG. 2 is a schematic diagram of a three-dimensional structure after dissection of a section of Example 2 of the present invention.

[0014] FIG. 3 is a schematic diagram of a cross-sectional structure of FIG. 2.

[0015] FIG. 4 is a schematic diagram of the three-dimensional structure of FIG. 2 after a part is cut off.

[0016] FIG. 5 is a schematic diagram of a three-dimensional structure after dissection of a section of Example 3 of the present invention.

[0017] FIG. 6 is a schematic view of the three-dimensional structure of FIG. 5 with a part cut off.

[0018] FIG. 7 is a schematic cross-sectional structure diagram of FIG. 5.

[0019] FIG. 8 is a schematic diagram of a cross-sectional structure of Example 4 of the present invention.

Specific implementing manner[0020] implementation example 1

[0021] Please see Figure 1, a cable that can be used to display whether it is in working condition, comprising a conductor 2, an insulating layer 1 extruded and coated on the conductor body; characterized in that the insulating layer is calculated in parts by weight Consists of the following raw materials: low-density polyethylene or medium-density polyethylene or high-density polyethylene or polypropylene: 50~80 parts, polyethylene wax: 5~8 parts, commercially available thermochromic powder: 3~5 parts , Guanidine carbonate: 1~2 parts, commercially available model 1010 for cable sheathing materials antioxidant: 0.5~1 part, industrial 1# or 2# or 3# mortar oil: 3~5 parts.

[0022] Implementation Example 2

[0023] Please see Figures 2 to 4, a cable that can be used to show whether it is in working condition, including two parallel insulated wires, the insulated wires are covered with a sheath layer 3; characterized in that the protective The jacket layer is divided into two enclosed spaces on the left and right by the spacer 4, and the two insulated wires are respectively located in the two enclosed spaces. The spacer and the sheath layer are an integrated structure. The right side of the strip has multiple right-side holes; each insulated wire is composed of a conductor 2, an insulating layer 1 extruded and coated on the conductor body; the material of the sheath layer is polyethylene or polypropylene or polytetrafluoroethylene Ethylene or polyvinyl chloride; or in parts by weight, the insulating layer is composed of raw materials with the following content: low-density polyethylene or medium-density polyethylene or high-density polyethylene or polypropylene: 50~S0 parts, polyethylene wax: 5~8 parts, commercially available thermochromic powder: 3~5 parts, guanidine carbonate: 丨~2 parts, commercial type 1010 antioxidant for cable sheath material...^~丨parts, industrial 1# or 2# or 3# white oil: 3~5 servings.

[0024] The above-mentioned one can be used to display whether the cable is in working condition, the left side of the spacer has multiple left holes, the right side of the spacer has multiple right holes; the left hole is the upper part The left hole 52 on the surface and the left hole 54 on the lower surface of the lower surface; the right hole is the upper right hole 51 on the upper surface and the right hole 53 on the lower surface of the lower surface.

[0025] The above-mentioned one can be used to show whether the cable is in working condition, the left hole on the upper surface and the right hole on the upper surface are all through the upper surface of the sheath layer.

[0026] The above-mentioned one can be used to display whether the cable is in working condition, the left hole on the lower surface and the right hole on the lower surface are all through the lower surface of the sheath layer.

[0027] In the above-mentioned cable that can be used to display whether it is in working condition, the left hole on the upper surface and the right hole on the upper surface are all close to the spacer, that is, on the sheath layer near the spacer.

[0028] In the above-mentioned cable that can be used to display whether it is in working condition, the left hole on the lower surface and the right hole on the lower surface are both close to the spacer, that is, on the sheath layer near the spacer.

[0029] The above-mentioned one can be used to display whether the cable is in working condition, the center of the left hole on the upper surface can be located on a straight line; the center of the left hole on the lower surface can be located on a straight line; the right hole on the upper surface The center of the hole can be located on a straight line; the center of the hole on the right side of the lower surface can be located on a straight line.

[0030] The above-mentioned one can be used to show whether the cable is in working condition, the left hole on the upper surface can be discontinuous or continuous, and the left hole on the lower surface can also be discontinuous or continuous. The hole on the right side can also be intermittent or continuous, and the hole on the right side of the lower surface can also be intermittent or continuous.

[0031] The above-mentioned cable that can be used to display whether it is in a working state is characterized by two holes on the left side of the upper surface and two holes on the right side of the upper surface, and the other two holes on the left side of the lower surface and the right hole on the lower surface. It may not appear at the same time or at the same time; when it appears at the same time, the layout of the cable can achieve the purpose of displaying and judging whether the cable is in a working state regardless of the upper surface or the lower surface.

[0032] In this embodiment, the sheath layer and the spacer can be realized by extrusion molding together; it can also be realized by bonding and sealing.

[0033] This embodiment of a cable that can be used to display whether it is in a working state includes the following steps in sequence:

[0034] The first step, the step of manufacturing insulated wires: Extruding the insulating layer through an extruder outside the conductor to form a first insulated conductor, winding it on the first turntable, the thickness of the insulating layer is 0.3~1.6mm Then take another conductive body, form a second insulated conductor by extruding the insulating layer on the other conductive body through an extruder, and wrap it on the second turntable, the thickness of the insulating layer is 0 • 3~ 1 • 6mm; The insulating layer is based on parts by weight and is composed of raw materials with the following content: low-density polyethylene or medium-density polyethylene or high-density polyethylene or polypropylene: 50~80 parts, polyethylene wax: 5 ~8 parts, commercially available thermochromic powder: 3~5 parts, guanidine carbonate: 1~2 parts, commercial type 1〇10 antioxidant for cable sheath materials..."~〗parts, industrial 1# Or 2# or 3# white oil: 3~5 parts;

[0035] The second step, the step of manufacturing the spacer and the sheath layer: the first insulated conductor and the second insulated conductor are passed through the die of the extruder to form a semi-finished cable which is cooled and continuously drawn; the extruder The die of the machine head ensures that the first and second insulated conductors are placed in parallel, and the sheath layer is wrapped around the first and second insulated wires. The barrier strip separates the sheath layer into two enclosed spaces on the left and the right. The two insulated wires are located respectively In the two enclosed spaces, the spacers and the sheath layer are an integral structure;

[0036] The third step, the step of manufacturing the left and right holes: When the semi-finished cable formed in the second step is cooled and continuously drawn, the impact tool is used to repeatedly impact on the left side of the spacer to form the left hole, Repeatedly impact on the right side of the spacer to form a right hole; the left and right holes both penetrate the sheath layer, and the left and right holes are intermittent; the completion of the cable can show whether it is in working condition Manufacturing.

[0037] Implementation Example 3

[0038] Please see Figures 5 to 7, a cable that can be used to show whether it is in working condition, including three parallel insulated wires, the insulated wires are covered with a sheath layer 3; characterized in that the sheath The layer is divided into three enclosed spaces by three spacers 4, and the three insulated wires are respectively located in the three enclosed spaces. The spacers and the sheath layer are formed separately but connected as an integral structure. The left side of each spacer There are multiple left holes, and the right side of each spacer has multiple right holes; one end of each spacer is connected to the sheath layer, and the other end of each spacer is connected to each other; each insulated wire is electrically conductive Body 2. An insulating layer 1 extruding and covering the f conductive body; the material of the sheath layer is polyethylene or polypropylene or polytetrafluoroethylene or polyvinyl chloride or in parts by weight, and the insulating layer is composed of the following The raw material composition of the content: low-density polyethylene or medium-density polyethylene or high-density polyethylene or polypropylene: 50~80 parts, polyethylene wax: 5~8 parts, commercially available thermochromic powder: 3~5 parts , Guanidine carbonate: 1 to 2 parts, commercially available model 1010 of antioxidant for cable sheathing materials...^~丨parts, industrial 1# or 2# or 3# white oil: 3 to 5 parts.

[0039] The left and right holes of the spacer are respectively the left hole 52 on the upper surface, the right hole 51 on the upper surface, the left hole 54 on the lower surface, the right hole 53 on the lower surface, the right hole 55 on the middle surface, and the middle surface. The left hole (not shown in the figure, but the owner can fully infer it from the above description).

[0040] In this embodiment, the sheath layer and the spacer can be achieved by bonding and sealing.

[0041] Implementation Example 4

[0042] _ Please see Figure 8, and with reference to Figures 5 to 7, a cable that can be used to show whether it is in a working state, including three parallel awn-mounted insulated wires, the insulated wires are covered with a sheath layer 3; It is characterized in that the sheath layer is divided into three enclosed spaces by three spacers 4, and the three insulated wires are respectively located in the three enclosed spaces. The spacers and the sheath layer are an integral structure, and each spacer There are multiple left holes on the left side, and multiple right holes on the right side of each spacer; one end of each spacer is connected to the sheath layer, and the other end of each spacer is connected to each other; each insulation The wire is composed of a conductor 2, an insulating layer 1 extruded and coated on the conductor body; the material of the sheath layer is polyethylene or polypropylene or polytetrafluoroethylene or polyvinyl chloride in parts by weight. The layer is composed of the following raw materials: low-density polyethylene or medium-density polyethylene or high-density polyethylene or polypropylene: 50~80 parts, polyethylene wax: 5~8 parts, commercially available thermochromic powder: 3~ 5 parts, guanidine carbonate: 1 to 2 parts, commercial type 1010 antioxidant for cable sheath material...^~丨parts, industrial 1# or 2# or 3# white oil: 3 to 5 parts.

[0043] In this embodiment, the sheath layer and the spacers can be realized by extrusion molding together.

[0044] Of course, the above-mentioned one can be used to display whether the cable is in working condition, or it can include other multiple insulated wires placed in parallel, with other multiple spacers, all of which will be in the sheath layer. The space is divided into multiple enclosed spaces, and multiple insulated wires are respectively located in multiple enclosed spaces.

[0045] In the present invention, due to the special composition of the insulating layer material, the cable will emit heat when it is in working condition, causing the insulating layer to change color, and achieve the identification function. The insulating layer can be observed from the left and right holes. The discoloration of the cable does not need to be stripped of the cable sheath; of course, it also avoids the function of load identification and the possible electric shock caused by touching the cable with your hand.

[0046] In the present invention, the presence of the spacers isolates the heat of the adjacent insulated wires to a certain extent; the use of suitable materials can achieve the desired thermal insulation effect.

[0047] In the present invention, the existence of the left hole and the right hole can not only realize the function of observing whether the insulating layer has changed color, but also can effectively dissipate the heat of the cable during operation, so that the cable has a stronger flow conductivity.

[0048] If the cable in the present invention is not working, the temperature will not rise sharply, or if it is higher than the ambient temperature, the insulation layer will not change color. Therefore, the right insulation layer is the same as the original color, which means that the cable is not working. state.

[0049] The spacer in the present invention can be the same material as the sheath layer, or it can be a different material from the sheath layer.

[0050] The conductor in the present invention may be a single metal or alloy conductor, or it may be formed by twisting multiple metal wires or multiple alloy wires.

[0051] Further, the material of the aforementioned conductor may be copper or aluminum or aluminum alloy or magnesium alloy or aluminum-magnesium alloy or copper clad copper.

[0052] A cable in the present invention can be used to display whether it is in working condition, the insulating layer is composed of the following content of raw materials has the best temperature change display performance and extrusion performance: low-density polyethylene or medium-density polyethylene Or high-density polyethylene or polypropylene: 65 parts, polyethylene: 6 parts, commercially available thermochromic powder: 4 parts, guanidine carbonate: 1.5 parts, commercially available model 1010 for cable sheathing materials antioxidants: 0 • 8 servings, 1# or 2# or 3# white oil for industrial use: 4 servings.

[0053] Of course, when the insulating layer is composed of the following raw materials, it has sub-optimal temperature change display performance and extrusion performance: low-density polyethylene or medium-density polyethylene or high-density polyethylene or polypropylene: 80 parts, poly Ethylene wax: 5 parts, commercially available thermochromic powder: 3 parts, guanidine carbonate: 1 part, commercially available model 1010 for cable sheathing material antioxidant: 0.6 part, industrial 1# or 2# or 3#White oil: 3 parts.

[00^4] Of course, when the insulating layer is composed of the following content of raw materials, it has sub-optimal temperature change display performance and extrusion performance: low-k degree Ping·Yican or medium degree of polyvinyl or high-density polyethylene Or polypropylene refining: 50 parts, polyethylene refining: g parts, commercially available thermochromic powder: 5 parts, guanidine carbonate: 2 parts, commercial type 1010 antioxidant for cable sheath material: 1 Servings, industrial 1# or 2# or 3# white oil: 5 servings.

[0055] The applicant has tested the insulating layer materials used in the present invention, and obtained the following data: ~~Serial Number I Project Name I Unit — I Technical Index 1:] il.3: ..3.......:. T': a''"'"l:; 3::::: ::Fan Lai i:::' Two = rn^Al 1 Break Elongation% — >650-L" 5 Low-temperature impact embrittlement temperature | C '<-8〇_ ::ir; :n酣赖疆，….1 lion…...:', r heat 1_ fiber Ba It lure oil1: ..S...'.:-:.-:: 9 Intensity "MV/m — >26__

[0057] The above indicators have reached the indicator requirements of wire and cable, optical fiber and optical cable insulation layer, and sheath material; the maximum temperature of extrusion processing is 225°C.

[0058] The insulating layer material of the present invention begins to have a color change when it is 60 °C; the commercially available thermochromic powder used by the applicant was purchased from Shenzhen Qian Se Change Pigment Co., Ltd.

[0059] Therefore, the present invention has the following main beneficial effects: the working status of the cable can be clearly displayed, no additional load auxiliary display is required, no instrumentation is required, and more power is saved.

[0060] The present invention is not limited to the above-mentioned best embodiments. It should be understood that the concept of the present invention can be implemented in various other forms, and they also fall within the protection scope of the present invention.

Claims (1)

1. A cable that can be used to display whether it is in working condition, comprising two insulated wires placed in parallel, and the insulated wires are covered with a sheath layer; characterized in that the sheath layer is divided into two left and right sides by a spacer Closed space, two insulated wires are located in two closed spaces, the spacer and the sheath layer are an integrated structure, the left side of the spacer has multiple left holes, and the right side of the spacer has multiple right holes; Each insulated wire is composed of a conductive body and an insulating layer that is extruded and wrapped around the conductive body; the material of the sheath layer is polyethylene or polypropylene or polytetrafluoroethylene or polyvinyl chloride; in parts by weight, the The insulating layer is composed of the following raw materials: low-density polyethylene or medium-density polyethylene or high-density polyethylene or polypropylene: 50~80 parts, polyethylene wax: 5~8 parts, commercially available thermochromic powder: 3 ~5 parts, guanidine carbonate: 丨~2 parts, commercially available model 1010 for cable sheathing material antioxidant: 0.5~1 part, industrial 1# or 2# or 3# white oil: 3~5 parts; The cable that can be used to indicate whether it is in working condition is manufactured by following the following steps in sequence: The first step, the step of manufacturing an insulated wire: the first insulated conductor is formed by extruding the insulating layer through an extruder outside the conductive body , Wound on the first turntable, the thickness of the insulating layer is then another conductor is taken, and the second insulating conductor is formed by extruding the insulating layer on the other conductor through an extruder. On the two-turn turntable, the thickness of the insulating layer is 0.3~1 • 6mm; the insulating layer is based on parts by weight and is composed of the following raw materials: low-density polyethylene or medium-density polyethylene or high-density polyethylene or Polypropylene: 50~80 parts, polyethylene wax: 5~8 parts, commercially available thermochromic powder: 3~5 parts, guanidine carbonate: 1~2 parts, commercially available model 1010 cable sheath Antioxidant for materials...^~丨parts, industrial 1# or 2# or 3# white oil: 3~5 parts; the second step, the step of manufacturing the spacer and the sheath layer: the first insulated conductor and the second The insulated conductor passes through the die of the extruder to form a semi-finished cable and is cooled and continuously drawn; the die of the extruder ensures that the first and second insulated conductors are placed in parallel, and the sheath is covered on the first and second Outside the two insulated wires, the barrier strip separates the sheath layer into two enclosed spaces on the left and right. The two insulated wires are respectively located in the two enclosed spaces. The barrier strip and the sheath layer are an integral structure; the third step is to manufacture the left Steps for the side hole and the right hole: When the semi-finished cable formed in the second step is cooled and continuously drawn, use an impact tool to repeatedly impact on the left side of the spacer to form a left hole, and repeatedly impact on the right side of the spacer to form a right Side hole; The left hole and the right hole are through the sheath layer, the left hole and the right hole are intermittent; it can be used to show whether the cable is in working condition.