WO2024032759A1

WO2024032759A1 - Novel cable

Info

Publication number: WO2024032759A1
Application number: PCT/CN2023/112496
Authority: WO
Inventors: 王超
Original assignee: 长春捷翼汽车科技股份有限公司
Priority date: 2022-08-12
Filing date: 2023-08-11
Publication date: 2024-02-15
Also published as: CN115424767A

Abstract

Disclosed in the present application is a novel cable. The novel cable comprises a conductor and an insulating layer covering the periphery of the conductor, the insulating layer being configured in a segmented manner, and at least two adjacent segments of the insulating layer being different in material and/or thickness. According to the novel cable of the present disclosure, an appropriate insulating layer may be selected according to an environment in which the cable is located in the process of actual use, meeting the requirements for insulating layers in different use environments, reducing cable costs, and increasing market competitiveness.

Description

A new type of cable

Related applications

This application claims the priority of the Chinese patent application with application number 202210970530.3 submitted on August 12, 2022, and cites the disclosure content of the above patent application as part of this application.

Technical field

The present application relates to the field of cable technology, and more specifically, to a new type of cable.

Background technique

Cables are mainly used for multiple functions such as controlling installation, connecting equipment, and transmitting power. With the rapid development of economy and society, cables have become a common and indispensable thing in daily life.

The insulation layers of the cables used today all use the same specifications of insulation layers on the same cable, and are generally made of the highest grade insulation materials. This virtually increases the production cost of the cable. In practical applications, one The length of a cable ranges from a few centimeters to tens of meters. A long cable often passes through many different usage environments. Each usage environment has different requirements for the cable insulation layer, such as high temperature resistance and sun protection. Sun-aging, good bending, or through-holes set through a certain component require a sealing effect between the insulation layer and the through-hole.

Contents of the invention

One purpose of this application is to provide a new technical solution for a new type of cable, in which the insulation layers of different sections meet different requirements for assembly and use environments.

According to the first aspect of the present application, a new type of cable is provided, including:

A conductor and an insulating layer covering the periphery of the conductor. The insulating layer is arranged in sections, and at least two adjacent sections of the insulating layer have different materials and/or thicknesses.

Optionally, two adjacent sections of the insulating layer are connected through a first connection, and the first connection connects two adjacent sections of the insulating layer in a surrounding and sealing manner.

Optionally, two adjacent sections of the insulation layer are butt-connected.

Optionally, the size of the first connection point between two adjacent sections of the insulation layer in the cable extension direction is 0mm-50mm.

Optionally, two adjacent sections of the insulation layer are overlapped and connected.

Optionally, the size of the first connection point between two adjacent sections of the insulation layer in the cable extension direction is 1-1.5 times the diameter of the cable. times.

Optionally, two adjacent sections of the insulation layer are adhesively connected.

Optionally, two adjacent sections of the insulation layer are fused.

Optionally, the conductor material is a flexible conductor and/or a rigid conductor.

Optionally, the flexible conductor is a multi-core cable or a braided cable or a flexible cable stacked with multiple layers of sheets.

Optionally, the insulation layer is covered with a shielding layer on the outer periphery, and the shielding layer is made of metal casing, conductive plastic casing, metal foil wrapped tape layer, metal wire braided casing, conductive paint layer or conductive plating layer.

Optionally, the outer periphery of the shielding layer is covered with an outer insulating layer. The outer insulating layer is arranged in sections and connected end to end through at least one second connection. The material and/or material of at least two adjacent sections of the outer insulating layer The thicknesses are different, and the second connection point surrounds and seals to connect two adjacent sections of the outer insulating layer.

Optionally, when two adjacent sections of the outer insulating layers are overlapped, the size of the second connection point connecting the two adjacent sections of the outer insulating layers in the cable extension direction is 1 to 1.5 times the diameter of the cable;

When two adjacent sections of the outer insulating layers are butt-connected, the size of the second connection point connecting the two adjacent sections of the outer insulating layers in the cable extension direction is 0mm-50mm.

Optionally, the bending radius of the cable is greater than or equal to 5 times the diameter of the cable.

Optionally, the thickness of the first connection point of two adjacent sections of the insulating layer is 0.1mm-8.0mm; the thickness of the second connection point of the two adjacent sections of the outer insulating layer is 0.1mm-8.0mm.

Optionally, the difference in thickness between two adjacent sections of the insulation layer does not exceed 25%.

A new type of cable according to the present disclosure has the following beneficial effects:

1. Through the new type of cable provided in this application, the appropriate insulation layer can be selected according to the environment in which the cable is used during actual application, so as to meet the needs of different usage environments for the insulation layer and reduce the cost of the cable. , increase market competitiveness.

2. The connection between two adjacent sections of insulation layer is surrounded by a sealed connection to prevent leakage between the two sections of insulation layer and avoid casualties and property losses.

3. By setting up a shielding layer, the electromagnetic interference generated during the use of the cable can be shielded to avoid interference with other instruments and equipment. The shielding layer can reduce the interference of electromagnetic radiation generated by cables to other electrical devices in the car.

Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

Figure 1 is a schematic cross-sectional structural diagram of a cable in this application in which the conductor is coated with an insulation layer, a shielding layer and an outer insulation layer;

Figure 2 is a schematic structural diagram of a cable with an insulation layer outside the conductor in this application;

Figure 3 is a schematic cross-sectional structural diagram of a cable with an insulation layer outside the conductor in this application;

Figure 4 is a schematic structural diagram of two adjacent sections of insulation layer coated with a conductor in this application when the thicknesses are different;

Figure 5 is a schematic structural diagram of the overlapping connection of two adjacent sections of insulation layer wrapped around the conductor in this application.

Marked in the figure are as follows:
1-Conductor; 2-Insulating layer; 3-First connection; 4-Shielding layer; 5-Outer insulation layer; 6-Second connection.

Detailed ways

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these examples do not limit the scope of the present application unless otherwise specifically stated.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application or its application or uses.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered a part of the specification.

In all examples shown and discussed herein, any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values.

A new type of cable according to the present disclosure, as shown in Figures 1 to 5, includes:

The conductor 1 and the insulating layer 2 covering the outer periphery of the conductor 1. The insulating layer 2 is arranged in sections. At least two adjacent sections of the insulating layer 2 have different materials and/or thicknesses. In other words, the materials of at least two adjacent sections of the insulating layer 2 are different. and/or different thicknesses.

During specific implementation, through a new type of cable provided in this application, an appropriate insulating layer 2 can be selected according to the environment in which the cable is used during actual application, so as to meet the requirements for the insulating layer 2 in different usage environments and reduce Reduce cable costs and increase market competitiveness.

In one embodiment, the cables are arranged from the inside of the car body through the sheet metal to the engine compartment. The temperature resistance level inside the car body is 105°C, and it belongs to a dry area and a non-vibration area. The cables are required to be high temperature resistant, waterproof, Oil-proof and wear-resistant performance requirements are not high. However, the temperature resistance level in the engine compartment is 125°C or even 150°C, so the cables are required to have a higher temperature resistance level. In addition, the engine compartment is a mixed environment of water and oil, and the cables need to be waterproof and oil-proof. Finally, The engine compartment is a vibration area, and the cables must have good wear resistance. Therefore, this kind of cable generally follows the cable standard requirements in the engine compartment. Since the length of the cable inside the car body is long, the performance of the cable cannot be fully utilized, and the actual cable cost is high. Using the cables provided in this application, the insulation layer can be set in sections, and a lower-demand and cheaper insulation layer can be installed inside the body, and a higher-demand insulation layer can be used in the engine compartment, thereby reducing the overall cost of the cable. .

Optionally, the material of at least a section of the insulating layer 2 located in the engine compartment is different from the material of at least a section of the insulating layer 2 passing through the inner sheet metal of the automobile body.

Optionally, the thickness of at least one section of the insulating layer 2 located in the engine compartment is different from the thickness of the at least one section of the insulating layer 2 that passes through the interior sheet metal of the automobile body.

Optionally, the temperature resistance level of at least one section of the insulation layer 2 located in the engine compartment is higher than the temperature resistance level of at least one section of the insulation layer 2 passing through the interior sheet metal of the automobile body.

Optionally, the wear resistance of at least a section of the insulating layer 2 located in the engine compartment is higher than the wear resistance of at least a section of the insulating layer 2 passing through the interior sheet metal of the automobile body.

Optionally, the waterproof and oil-proof performance of at least one section of the insulating layer 2 located in the engine compartment is higher than the water- and oil-proof performance of at least one section of the insulating layer 2 that passes through the inner sheet metal of the automobile body.

In an embodiment of a new type of cable according to the present disclosure, two adjacent sections of insulation layer 2 are connected through a first connection point 3, and the first connection point 3 surrounds and seals to connect two adjacent sections of insulation layer 2, that is, the first connection point 3 is located between two adjacent sections of insulating layers 2 , and the first connection point 3 sealingly connects the two sections of insulating layers 2 within the entire circumference range of the two sections of insulating layers 2 .

During specific implementation, the connection between two adjacent sections of insulation layers is surrounded by a sealed connection to prevent leakage between the two sections of insulation layers and avoid casualties and property losses.

In an embodiment of a new type of cable according to the present disclosure, two adjacent sections of insulation layers 2 are butt-connected. By butt-connecting adjacent insulating layers 2, two adjacent sections of insulating layers 2 can be formed as a whole and placed around the outer periphery of the conductor 1 to play an overall insulating role. Two adjacent insulating layers 2 can be connected by butt-jointing without Increasing the outer diameter of the cable keeps the appearance of the cable consistent, without affecting the aesthetics of the appearance, and without increasing the difficulty of assembly processes such as perforating holes or jamming cable troughs during cable laying.

Further, the size of the first connection point 3 of two adjacent sections of insulation layer 2 in the cable extension direction is 0 mm-50 mm.

During specific implementation, the first connection points 3 of two adjacent sections of insulating layers 2 are connected by butt jointing and bonding. In other words, the two adjacent sections of insulating layers 2 are connected by bonding. connection, so the first connection point 3 is the bonding point. When insulating glue is used for bonding, since the size occupied by the insulating glue used for bonding is negligible, the size of the first connection point 3 of two adjacent sections of the insulating layer 2 in the cable extension direction is 0.

The first connection point 3 of two adjacent sections of insulating layers 2 is connected by butt and fused connection. In other words, the two adjacent sections of insulating layer 2 are connected by fused connection, so the first connection point 3 A joint 3 is a fused joint. For fusion connection, the size of the first connection point 3 of two adjacent sections of insulation layer 2 in the cable extension direction is verified through the following experiments.

The inventor selected multiple sets of cables with different sizes of the first connection points 3 in the cable extension direction to conduct a bending experiment. The cables used for the bending experiment had conductors of the same diameter and insulation layers of the same thickness. The bending radius It is 5 times the diameter of the cable. After every 50 bends, observe whether the first connection is broken. If it is broken, stop the experiment. The number of bends is greater than or equal to 2000. times, the size value of the first connection is the qualified value.

Table 1: Effect of the size of the first connection on the number of times the cable can be bent

According to Table 1, it can be seen that the size of the first connection 3 is greater than 50mm, and the number of cable bends is less than 2000 times. At this time, the size value of the first connection 3 is unqualified. Therefore, the inventor selected two adjacent sections of insulation. The size of the first connection point 3 of the layer in the cable extension direction is 0mm-50mm.

In an embodiment of a new type of cable according to the present disclosure, two adjacent sections of insulating layers 2 are overlapped and connected, so the first connection 3 is the overlap of two adjacent sections of insulating layers 2 . By overlapping the adjacent insulating layers 2, two adjacent sections of the insulating layers 2 can be formed as a whole and placed around the outer circumference of the conductor 1 to play an overall insulation role. The two adjacent insulating layers 2 can be connected by overlapping. The connection has a double-layer insulation layer, so the strength of the insulation layer at the connection is increased. When the cable needs to be bent or is in a vibration environment, the strength of the connection between the cable insulation layers can be enhanced by overlapping the two insulation layers. , extend the service life of the cable.

Further, the size of the first connection point 3 between two adjacent sections of insulation layer 2 in the cable extension direction is 1 to 1.5 times the diameter of the cable.

In specific implementation, after two adjacent sections of insulating layers 2 are overlapped, the connection between the two sections of insulating layers 2 can be realized by bonding or melting connection. The inventor adopts cables of the same diameter. Including conductors of the same diameter and insulation layers 2 of the same thickness, only the size of the first connection 3 between two adjacent sections of insulation layers 2 is changed, and a bending experiment is performed. The bending radius is the diameter of the cable. 5 times, every 50 times of bending, observe whether the first connection 3 breaks. If it breaks, stop the experiment. When the number of bends is greater than or equal to 2000 times, the size value of the first connection 3 is a qualified value.

Table 2: The size of the first connection point 3 of two adjacent sections of insulation layer 2 in the cable extension direction is the influence of multiples of the cable diameter on the number of times the cable can be bent.

According to Table 2, it can be seen that when the size of the first connection point 3 is less than one time of the cable diameter, the number of bends of the cable is less than 2000 times. At this time, the size value of the first connection point 3 is unqualified; the size of the first connection point 3 exceeds At 1.5 times the cable diameter, the cable can The number of bends is gradually increasing, but the size of the first connection point 3 is too large, which has no practical significance for actual production. Moreover, if the first connection point 3 is too large, it will also increase the usage of the insulation layer and increase the production of cables. cost, therefore, the size of the first connection point 3 of two adjacent sections of insulation layer 2 selected by the inventor in the cable extension direction is 1 to 1.5 times the diameter of the cable.

In an embodiment of a new type of cable according to the present disclosure, two adjacent sections of insulation layer 2 are bonded and connected. By bonding and connecting adjacent insulating layers 2, two adjacent sections of insulating layers 2 can be formed into a whole and set around the outer circumference of the conductor 1 to play an overall insulating role. The material properties of the two adjacent insulating layers 2 are quite different. At the same time, the connection between the two is realized through bonding, which is convenient, fast and simple to operate.

In an embodiment of a new type of cable according to the present disclosure, two adjacent sections of insulation layer 2 are fused and connected. By melting and connecting adjacent insulating layers 2, two adjacent sections of insulating layers 2 can be formed as a whole and placed around the outer circumference of the conductor 1 to play the role of overall insulation. When the material properties of the two adjacent insulating layers 2 are similar, The two insulating layers are connected by melting, and the adjacent insulating layers are better combined at the connection point. The two adjacent insulating layers are melted and connected into one, extending the service life of the cable.

In an embodiment of a new type of cable according to the present disclosure, the conductor 1 is made of a flexible conductor and/or a rigid conductor.

Further, the flexible conductor is a multi-core cable or a braided cable or a flexible cable stacked with multiple layers of sheets.

During specific implementation, the conductor 1 can use a flexible conductor where bending is required and a rigid conductor where bending is not required to meet the requirements for cables in different usage environments. Flexible conductors can be selected from multi-core cables or braided cables or flexible rows stacked with multiple layers of thin plates according to actual needs; flexible conductors can reduce the difficulty of laying during the process of assembling vehicles.

The use of rigid conductors can reduce the friction between the cables and the car body sheet metal in the process of assembling the vehicle, and can also reduce the use of fasteners. The cables can also be firmly installed on the car shell, reducing the use of fasteners. , reduce costs and installation difficulty.

In an embodiment of a new cable according to the present disclosure, the insulation layer 2 is covered with a shielding layer 4 on the outer periphery. The shielding layer 4 is made of metal casing, conductive plastic casing, metal foil winding tape layer, metal wire braided casing, Conductive paint layer or conductive plating.

By setting the shielding layer 4, electromagnetic interference generated during use of the cable can be shielded to avoid interference with other instruments and equipment. The shielding layer 4 can reduce the interference of electromagnetic radiation generated by the cable to other electrical devices in the vehicle.

The use of conductive plastic sleeves, conductive paint or conductive plating reduces the use of shielding net preparation equipment, occupies a small area, reduces cable processing costs, and reduces cable production costs.

The metal sleeve improves the shielding effect of the shielding layer, so that there is no dead space around the cable to shield, and prevents the electromagnetic field generated when the cable is working from interfering with the use of external power settings, thereby achieving a complete shielding effect.

During the winding process of the metal foil wrapping tape layer, the wrapping tape is superimposed and spirally coiled around the outside of the conductor, resulting in better shielding effect.

The metal wire braided casing has good flexibility, does not hinder the bending of the cable, and can reduce the interference of electromagnetic radiation generated by the cable to other electrical devices in the car.

Further, the outer periphery of the shielding layer 4 is covered with an outer insulating layer 5. The outer insulating layer 5 is arranged in sections and connected through at least one second connection. The joints 6 are connected end to end, at least two adjacent sections of the outer insulating layer 5 are made of different materials and/or thicknesses, and the second joint 6 surrounds and seals to connect the two adjacent sections of the outer insulating layer 5 . In other words, at least two adjacent sections of outer insulation layer 5 have different materials and/or thicknesses, the second connection point 6 is located between the two adjacent sections of outer insulation layer 5 , and the second connection point 6 is between the two adjacent sections of outer insulation layer 5 . The two sections of outer insulating layer 5 are sealed and connected throughout the entire circumference of layer 5 .

The outer insulation layer 5 can further ensure the insulation effect of the cable and avoid disasters. At the same time, the outer insulation layer 5 is segmented and connected end to end. The appropriate insulation layer 2 can be selected according to the environment in which the cable is used during actual application to meet the needs of the insulation layer 2 in different usage environments and reduce the cable consumption. costs and increase market competitiveness. The two adjacent outer insulating layers 5 are connected through butt joint, overlap, bonding or melting, so that the two adjacent outer insulating layers 5 can form a whole and be set around the outer periphery of the shielding layer 4 to play an overall insulation role.

By connecting two adjacent outer insulating layers 5 through butt joints, the outer diameter of the cable can not be increased and the appearance of the cable can be maintained consistent.

Two adjacent outer insulating layers 5 are connected by overlapping. The connection has a double-layer insulating layer, so the strength of the insulating layer at the connection is increased. When the cable needs to be bent or is in a vibration environment, the outer insulation is The layer 5 overlap connection enhances the strength of the cable insulation layer connection and extends the service life of the cable.

When the material properties of two adjacent outer insulating layers 5 are quite different, the connection between the two is achieved by bonding, which is convenient, fast and easy to operate.

When the material properties of two adjacent outer insulating layers 5 are similar, the two adjacent outer insulating layers 5 are connected by melting. The adjacent outer insulating layers 5 are better combined at the connection point, and the two adjacent outer insulating layers 5 are melted and connected to form Integrated to extend the service life of the cable.

Further, when two adjacent sections of outer insulating layers 5 are overlapped, the size of the second connection point 6 connecting the two adjacent sections of outer insulating layers 5 in the cable extension direction is 1 to 1.5 times the diameter of the cable;

When two adjacent sections of outer insulating layers 5 are butt-connected, the size of the second connection point 6 connecting the two adjacent sections of outer insulating layers 5 in the cable extension direction is 0mm-50mm.

During specific implementation, when two adjacent sections of outer insulating layers 5 are overlapped, the size of the second connection point 6 connecting the two adjacent sections of outer insulating layers 5 in the cable extension direction is 1 to 1.5 times the diameter of the cable. It can be The verification is carried out through the experimental methods involved in Table 2. For the sake of simplicity, no further details will be given.

When two adjacent sections of outer insulating layers 5 are butt-connected, the size of the second connection point 6 connecting the two adjacent sections of outer insulating layers 5 in the cable extension direction is 0mm-50mm. It can be verified through the experimental methods involved in Table 1. For the sake of simplicity, no further details will be given.

Further, the bending radius of the cable is greater than or equal to 5 times the diameter of the cable.

During specific implementation, the bending radius of the cable is greater than or equal to 5 times the cable diameter, which complies with international practice requirements. If the bending radius of the cable is less than 5 times the cable diameter, the cable will be damaged. Therefore, the cable The bending radius is equal to the cable diameter 5 times, the first connection between adjacent insulation layers does not need to break. Similarly, if the bending radius of the cable is less than 5 times the cable diameter, the second connection between adjacent outer insulation layers If the connection is not broken, it meets the requirements.

Further, the thickness of the first connection between two adjacent sections of the insulating layer is 0.1mm-8.0mm; the thickness of the second connection between the two adjacent sections of the outer insulating layer is 0.1mm-8.0mm.

During the specific implementation, the inventor selected multiple sets of cables with two sections of insulation layers to conduct the insulation withstand voltage breakdown test at the first connection. The applied voltage was 1.0KV. If the first connection 3 was broken down, the experiment was stopped. , the insulation withstand voltage performance of the first connection point 3 is unqualified. The cables that have not been broken down are subjected to a bending test. When the bending radius is 5 times the cable diameter, if the cable has broken at the first connection point 3, the test will be stopped. If the cable is not broken, the bending test will be continued. Every time After 50 bending times, observe whether the first connection point 3 breaks. If it breaks, stop the experiment. When the number of bending times is greater than or equal to 2000 times, the size value of the first connection point 3 is a qualified value.

When the thickness of the first connection 3 is less than or equal to 0.16mm, the two adjacent sections of insulating layer 2 are butt-connected. For the remaining first connection 3, there is no special restriction on whether the two adjacent sections of insulating layer are butt-jointed or overlapped. And the thickness difference between two adjacent insulation layers does not exceed 25%.

Table 3: The influence of the thickness of the first connection point 3 of two adjacent sections of insulation layer 2 on the breakdown voltage that the cable can withstand and the number of times it can be bent.

According to Table 3, it can be seen that when the thickness of the first connection 3 is less than 0.1mm, the first connection 3 is broken down when a voltage of 1.0KV is applied to the first connection 3. Therefore, when the insulation layer 2 is less than 0.1mm, the adjacent The connection between the two sections of insulation layer 2 is not qualified;

Conduct a bending experiment on a cable that has not been penetrated. When the bending radius is 5 times the diameter of the cable and the thickness of the first connection 3 is greater than 8mm, the first connection will break. Therefore, the first connection When the thickness is greater than 8mm, it is deemed unqualified;

When the thickness of the first connection between two adjacent sections of insulation layer is 0.1mm-8.0mm, the first connection 3 is not broken down, and the bending radius is 5 times the diameter of the cable and it is not broken, and the cable is The number of bends can reach more than 2000 times, which is a qualified value, so the inventor chooses the thickness of the first connection between two adjacent sections of insulation layers to be 0.1mm-8.0mm, and further preferably 0.16mm-7mm.

Through the same experimental method, the inventor chooses the thickness of the second connection point 6 between two adjacent sections of the outer insulating layer 5 to be 0.1mm-8.0mm, and more preferably 0.16mm-7mm. For the sake of simplicity, no further details will be given.

In an embodiment of a new type of cable according to the present disclosure, the thickness difference between two adjacent sections of insulation layer 2 does not exceed 25%.

During specific implementation, the thickness of two adjacent sections of insulating layer 2 is not likely to differ too much, and the selected thickness difference does not exceed 25%, which does not affect the overall consistency and appearance of the cable, and avoids excessive differences in the appearance of the same cable. Large, causing inconvenience during subsequent packaging, transportation and use.

In order to demonstrate the impact of the thickness difference between two adjacent sections of insulation layer 2 on cable packaging, the inventor chose conductors of the same specifications. In the standard embodiment, the outside of the conductors is covered with the insulation layer of the same specifications. The thickness of the insulating layer is set to a. At this time, a spool of 1000 reels can be wound with a length of 1600 meters of cable. In the remaining comparison examples, the thickness of the insulating layer is different from that in the standard embodiment. A spool of 1000 reels can be used. Cables with a winding length exceeding 1,500 meters are qualified. Fill in the length of cables that can be wound in the control test in Table 4. Cables that can be wound with a length of 1,000 reels are considered unqualified if the length is less than 1,500 meters.

Table 4: The length of the cable that can be wound on a 1000-spool reel with different thicknesses of insulation layers.

As can be seen from Table 4, when the thickness of the insulating layer in the comparative embodiment is less than or equal to 1.25 times the thickness of the insulating layer in the standard embodiment, the length of the cable that can be wound on 1000 reels is greater than 1500 meters, which meets the requirements. Therefore, the inventor The thickness difference between the selected two adjacent sections of insulating layer 2 does not exceed 25%.

In addition, the thickness of the insulation layer 2 of the cable is too different. During the cable processing process, when automatic equipment is used to cut and peel, the cutting size may be inaccurate and the peeling may be incomplete, which affects the product quality in the production process. . During the cable installation process, when it is necessary to perforate or jam the cable trough, it will not be possible to perforate or install due to differences in the outer diameter of the cable. Therefore, the thickness of different insulation layers on the cable does not differ by more than 25%.

Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art should understand that the above examples are for illustration only and are not intended to limit the scope of the present application. Those skilled in the art will understand that the above embodiments can be modified without departing from the scope and spirit of the application. The scope of the application is defined by the appended claims.

Claims

A new type of cable is characterized by:

A conductor and an insulating layer covering the periphery of the conductor. The insulating layer is arranged in sections, and at least two adjacent sections of the insulating layer have different materials and/or thicknesses.
The new cable according to claim 1, wherein two adjacent sections of the insulation layer are connected through a first connection point, and the first connection point surrounds and seals the adjacent two sections of the insulation layer.
The new cable according to claim 2, characterized in that two adjacent sections of the insulation layers are butt-connected.
The new cable according to claim 3, characterized in that the size of the first connection point between two adjacent sections of the insulation layer in the cable extension direction is 0mm-50mm.
The new cable according to claim 1, characterized in that two adjacent sections of the insulation layers are overlapped and connected.
The new cable according to claim 4, characterized in that the size of the first connection point of two adjacent sections of the insulation layer in the cable extension direction is 1 to 1.5 times the diameter of the cable.
The new cable according to claim 2, characterized in that two adjacent sections of the insulation layer are bonded and connected.
The new cable according to claim 2, characterized in that two adjacent sections of the insulation layer are fused and connected.
The new cable according to claim 2, characterized in that the conductor material is a flexible conductor and/or a rigid conductor.
The new cable according to claim 9, characterized in that the flexible conductor is a multi-core cable or a braided cable or a flexible cable stacked with multiple layers of thin plates.
The new cable according to claim 2, characterized in that the insulation layer is covered with a shielding layer, and the shielding layer is made of a metal sleeve, a conductive plastic sleeve, a metal foil winding tape layer, or a metal wire braided sleeve. pipe, conductive paint layer or conductive plating.
The new cable according to claim 11, characterized in that the outer periphery of the shielding layer is covered with an outer insulating layer, and the outer insulating layer is arranged in sections and connected end to end through at least one second connection point, at least two adjacent ones. The materials and/or thicknesses of the outer insulating layers in each section are different, and the second connection point is a surrounding and sealing connection between two adjacent sections of the outer insulating layer.
The new cable according to claim 12, characterized in that when two adjacent sections of the outer insulating layers are overlapped, the size of the second connection point connecting the two adjacent sections of the outer insulating layers in the cable extension direction is It is 1 to 1.5 times the diameter of the cable; when two adjacent sections of the outer insulating layers are butt connected, the size of the second connection point connecting the two adjacent sections of the outer insulating layers in the cable extension direction is 0mm to 50mm. .
The new cable according to claim 12, wherein the bending radius of the cable is greater than or equal to 5 times the diameter of the cable.
The new cable according to claim 12, characterized in that the first connection point of two adjacent sections of the insulation layer The thickness of the outer insulation layer is 0.1mm-8.0mm; the thickness of the second connection point of the two adjacent outer insulation layers is 0.1mm-8.0mm.
The new cable according to claim 12, characterized in that the thickness difference between two adjacent sections of the insulation layer does not exceed 25%.