Coaxial wire and method for manufacturing the same

Abstract

The invention discloses a coaxial wire and a manufacturing method thereof, comprising a central conductor, an elastic insulating wire, wherein a plurality of the elastic insulating wires are provided, the plurality of elastic insulating wires are spirally wound and then coated on the outside of the central conductor, and two adjacent strands of the elastic insulating wires are squeezed against each other to form a seal, the inner insulating layer is coated on the outside of the plurality of the elastic insulating wires and fills the gap between two adjacent elastic insulating wires, an external conductor, the external conductor is installed on the outside of the inner insulating layer, the outer insulating layer coats the external conductor, the buffer layer coats the outside of the outer insulating layer, and the armor layer coats the outside of the buffer layer; the product has dual transmission capabilities, one for main use and one for backup, to ensure normal power supply, and also has better tensile and compressive properties.

Description

Technical Field

[0001] The invention relates to a coaxial electric wire and a manufacturing method thereof. Background Art

[0002] Concentric trunk is a mechatronics term, also called coaxial wire; concentric trunk coaxial cable (thick cable and thin cable): Advantages: low installation cost, low maintenance cost, simple installation and easy expansion.

[0003] The coaxial wire in the prior art only has multiple strands of wires of the same diameter, each strand is separated, and an independent insulation layer is set on the outside of each strand, which leads to a more complicated manufacturing process, and each strand needs to be manufactured separately to make a coaxial wire.

[0004] Secondly, the tensile and compressive properties of this type of coaxial cable are poor. As long as one strand of the wire breaks or is crushed, the overall transmission will be affected.

[0005] Based on the above technical problems, we designed a coaxial wire and its manufacturing method with dual transmission capabilities, one main and one backup to ensure normal power supply, and better tensile and compressive properties. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a coaxial wire with dual transmission capabilities, one main and one backup, to ensure normal power supply, and also with better tensile and compressive properties, and a manufacturing method thereof.

[0007] To solve the above problems, the present invention adopts the following technical solutions:

[0008] A coaxial wire comprising:

[0009] Center conductor,

[0010] The elastic insulating wires are provided with a plurality of elastic insulating wires, and the plurality of elastic insulating wires are spirally wound and wrapped around the outside of the central conductor, and two adjacent strands of the elastic insulating wires are squeezed against each other to form a seal.

[0011] an inner insulating layer, the inner insulating layer covering the outside of the plurality of elastic insulating wires and filling the gap between two adjacent elastic insulating wires,

[0012] an external conductor, the external conductor being installed outside the inner insulating layer,

[0013] an outer insulating layer, the outer insulating layer covering the external wire,

[0014] a buffer layer, the buffer layer being coated on the outside of the outer insulating layer,

[0015] An armor layer is coated on the outside of the buffer layer.

[0016] Preferably, a plurality of raised portions are arranged on the outside of the inner insulating layer, a wire clamping groove is formed between adjacent raised portions, and the external wire is fitted into the wire clamping groove.

[0017] Preferably, the central conductor is a single conductor.

[0018] Preferably, the central conductor is a tinned wire.

[0019] Preferably, the inner insulating layer and the outer insulating layer both contain high-density polyethylene and ionomer.

[0020] Preferably, the wire diameter of the external wire is 1 / 10 to 1 / 6 of the wire diameter of the central wire.

[0021] Preferably, the buffer layer is an aluminum-plastic composite tape.

[0022] A method for manufacturing a coaxial wire comprises the following steps:

[0023] In the first step, the center conductor, the elastic insulation wire and the outer conductor are made separately;

[0024] The second step is to spirally wrap the elastic insulating wire around the outside of the central conductor and glue the ends together to prevent it from coming off.

[0025] The third step is to pass the central conductor wrapped with the elastic insulating wire through the injection molding device to form the inner insulating layer through the injection molding device;

[0026] Step 4: After the inner insulating layer is solidified, the outer wire is fixed to the outside of the inner insulating layer, and then the outer insulating layer is obtained by injection molding;

[0027] The fifth step is to wind the buffer layer after the outer insulation layer is solidified, and finally the armor layer is formed by injection molding on the outside of the buffer layer.

[0028] The beneficial effects of the present invention are:

[0029] Advantage 1: This wire adopts two transmission modes: central conductor and external conductor. In normal use, only the external conductor is used for power supply. When the external conductor is under pressure and a transmission failure occurs, the central conductor is used for transmission, one as the main conductor and the other as a backup, to ensure normal power transmission.

[0030] Advantage 2: In this electric wire, the external conductor firstly bears the transmission function, and the external conductor plays a protective function to the internal central conductor.

[0031] Advantage three: the elastic insulating wire can increase the compression and tensile strength of the wire, and the elastic insulating wire is spirally wound and fits tightly to each other, so the structural performance is more powerful.

[0032] Advantage four: each strand of external wire can be separated by the inner insulating layer, and there is no need to carry out separate insulation packaging for each external wire, which makes the manufacturing process of the wire simpler.

[0033] Advantage five: the center conductor itself has high tensile strength, which further improves the overall tensile strength of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 is a cross-sectional view of the present invention;

[0036] Figure 2 It is a stereogram of the present invention. Implementation

[0037] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0038] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0039] In the description of the present invention, it is necessary to understand that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In addition, in the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "disposed", "socketed", "connected", "through", "plugged" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] See also Figure 1 and Figure 2 A coaxial wire is shown, comprising:

[0043] Center conductor 1,

[0044] The elastic insulating wires 2 are provided with a plurality of elastic insulating wires 2, and the plurality of elastic insulating wires 2 are spirally wound and wrapped around the outside of the central conductor 1, and two adjacent elastic insulating wires 2 are squeezed against each other to form a seal.

[0045] An inner insulating layer 3, the inner insulating layer 3 is coated on the outside of the plurality of elastic insulating wires 2 and fills the gap between two adjacent elastic insulating wires 2,

[0046] An external conductor 4, the external conductor 4 is installed outside the inner insulating layer 3,

[0047] An outer insulating layer 5, wherein the outer insulating layer 5 covers the outer wire 4,

[0048] A buffer layer 6, the buffer layer 6 is coated on the outside of the outer insulating layer 5,

[0049] The armor layer 7 is coated on the outside of the buffer layer 6 .

[0050] A plurality of protrusions 31 are disposed outside the inner insulating layer 3 , and a wire clamping groove 32 is formed between adjacent protrusions 31 . The external wire 4 fits into the wire clamping groove 32 .

[0051] In the above technical solution, the plastic deformation of the inner insulating layer 3 is used to obtain the raised portion 31, and each external wire 4 can be separated by the raised portion 31, and then the outer insulating layer 5 is obtained by injection molding to complete the fixation of the external wire 4. After the formed wire, each wire 4 is independently separated, and the raised portion 31 is used to avoid electromagnetic interference, and the outer insulating layer 5 is combined to further reduce interference.

[0052] The central conductor 1 is a single conductor.

[0053] The single conductor has higher hardness and better transmission performance.

[0054] The central conductor 1 is a tinned wire.

[0055] The inner insulating layer 3 and the outer insulating layer 5 both contain high-density polyethylene and ionomer.

[0056] The wire diameter of the outer wire 4 is 1 / 10 of the wire diameter of the central wire 1 .

[0057] The buffer layer 6 is an aluminum-plastic composite tape.

[0058] The use of the aluminum-plastic composite tape as the buffer layer can provide better protection for the external conductor 4, and also prevent the outer insulating layer 5 from contacting with the air, thereby extending the service life.

[0059] A method for manufacturing a coaxial wire comprises the following steps:

[0060] The first step is to separately manufacture the central conductor 1, the elastic insulating wire 2 and the outer conductor 4;

[0061] The second step is to spirally wrap the elastic insulating wire 2 around the outside of the central conductor 1, and glue the ends together to prevent the wire from coming off.

[0062] The third step is to pass the central conductor 1 wound with the elastic insulating wire 2 through the injection molding device to form the inner insulating layer 3 through the injection molding device;

[0063] Step 4: After the inner insulating layer 3 is solidified, the outer wire 4 is fixed to the outside of the inner insulating layer 3, and then the outer insulating layer 5 is obtained by injection molding;

[0064] In the fifth step, after the outer insulating layer 5 is solidified, the buffer layer 6 is wound thereon, and finally the armor layer 7 is injection molded on the outside of the buffer layer 6 .

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A coaxial wire, characterized in that: include, Center conductor (1), A plurality of elastic insulating wires (2) are provided, the plurality of elastic insulating wires (2) are spirally wound and wrapped around the outside of the central conductor (1), and two adjacent strands of the elastic insulating wires (2) are squeezed against each other to form a seal. An inner insulating layer (3), the inner insulating layer (3) covering the outside of the plurality of elastic insulating wires (2) and filling the gap between two adjacent elastic insulating wires (2), an external conductor (4), the external conductor (4) being installed outside the inner insulating layer (3), an outer insulating layer (5), the outer insulating layer (5) covering the external wire (4), a buffer layer (6), the buffer layer (6) being coated on the outside of the outer insulating layer (5), An armor layer (7), the armor layer (7) being coated on the outside of the buffer layer (6); A plurality of raised portions (31) are arranged outside the inner insulating layer (3), a wire clamping groove (32) is formed between adjacent raised portions (31), and the external wire (4) is fitted into the wire clamping groove (32).

2. The coaxial wire according to claim 1, characterized in that: The central conductor (1) is a single conductor.

3. The coaxial wire according to claim 2, characterized in that: The central conductor (1) is a tinned wire.

4. The coaxial wire according to claim 1, characterized in that: The inner insulating layer (3) and the outer insulating layer (5) both contain high-density polyethylene and ionomer.

5. The coaxial wire according to claim 1, characterized in that: The wire diameter of the external wire (4) is 1 / 10 to 1 / 6 of the wire diameter of the central wire (1).

6. The coaxial wire according to claim 1, characterized in that: The buffer layer (6) is an aluminum-plastic composite tape.

7. A method for manufacturing a coaxial wire according to any one of claims 1 to 6, characterized in that: The following steps are included ： The first step is to separately manufacture the central conductor (1), the elastic insulating wire (2) and the outer conductor (4); The second step is to spirally wrap the elastic insulating wire (2) around the outside of the central conductor (1), and glue the ends together to prevent the wire from coming off. The third step is to pass the central conductor (1) wound with the elastic insulating wire (2) through the injection molding device to form the inner insulating layer (3) through the injection molding device; Step 4: After the inner insulating layer (3) is solidified, the outer conductor (4) is fixed to the outside of the inner insulating layer (3), and then the outer insulating layer (5) is obtained by injection molding; In the fifth step, after the outer insulating layer (5) is solidified, the buffer layer (6) is wound thereon, and finally the armor layer (7) is injection molded on the outside of the buffer layer (6).

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