CN204632365U - a cable for a computer or instrument - Google Patents

Abstract

The utility model belongs to the technical field of cables, in particular to a cable for computers or instruments, which comprises three control wires, a first protective layer, an outer shielding layer, an inner sheath, an armor layer and an outer sheath; the three control lines are first to third control lines, each control line is composed of two insulated wires, an inner shielding layer, a grounding layer and a wire core sheath, and each insulated wire is composed of a conductor and an insulated layer which is extruded and coated outside the conductor; the axes of the two conductors in the first control line form a first plane; the axes of the two conductors in the second control line form a second plane; the axes of the two conductors in the third control line form a third plane; the first plane, the second plane and the third plane are parallel to each other. The utility model discloses following main beneficial effect has: easy processing and manufacturing, good shielding performance, wide suitable working temperature range and high softness.

Description

a cable for a computer or instrument

technical field

The utility model belongs to the technical field of cables, in particular to a cable used for computers or instruments.

Background technique

With the rapid development of the instrumentation industry, intelligent instruments are equipped with computers for communication, control, monitoring, etc. This type of cable needs to be relatively soft and have high shielding performance. The communication cables and The control cable cannot meet the demand.

Utility model content

In order to solve the above problems, the purpose of this utility model is to disclose a cable for computers or instruments, which is realized by the following technical solutions.

A cable for computers or instruments, characterized in that it is composed of three control lines arranged tangentially two by two, a first protective layer wrapped outside the control lines, and an outer shield wrapped outside the first protective layer layer, an inner sheath that is extruded and coated on the outer shield, an armored layer that is coated on the inner sheath, and an outer sheath that is extruded and coated on the armored layer; the three control lines are the first control lines , the second control line, the third control line, each control line is composed of two insulated wires, the inner shielding layer outside the insulated wires, the grounding layer outside the inner shielding layer, and the extrusion coating outside the extruded ground layer Each insulated wire is composed of a conductor and an insulating layer that is extruded and coated on the outside of the conductor; the axes of the two conductors in the first control line are in the same plane, which is called the first plane; the second The axes of the two conductors in the control line are in the same plane, which is called the second plane; the axes of the two conductors in the third control line are in the same plane, and the plane is called the third plane; the first plane, The second plane and the third plane are parallel to each other or the first plane, the second plane and the third plane are 120 degrees to each other or the second plane and the third plane are located in the same plane, the first plane is perpendicular to the second plane or the third plane The second plane and the third plane are located in the same plane, the first plane is parallel to the second plane or the second plane and the third plane are parallel, the first plane is perpendicular to the second plane or the first plane, the second plane and the third plane The three are 60 degrees to each other.

The aforementioned cable for computers or instruments is characterized in that the conductor is a Class 1 conductor and is a single bare round copper wire with a diameter of 0.5-1.2 mm.

The above-mentioned cable for computers or instruments is characterized in that the first protective layer is a polyester tape, which is spirally wrapped or longitudinally wrapped outside the control wire.

The above-mentioned cable for computers or instruments is characterized in that the outer shielding layer is a copper tape with a thickness of 0.03-0.06 mm; the copper tape is spirally wrapped, and the wrapping overlaps by 25-40%.

The aforementioned cable for computers or instruments is characterized in that the material of the inner sheath is polyvinyl chloride.

The above-mentioned cable for computers or instruments is characterized in that the armor layer is a steel strip with a thickness of 0.1-0.3mm; it is longitudinally covered, and the overlapping width of the coating is 2-4mm .

The aforementioned cable for computers or instruments is characterized in that the material of the outer sheath is polyvinyl chloride.

The above-mentioned cable for computer or instrument is characterized in that the material of the inner shielding layer is a semi-conductive resistance water tape or a semi-conductive cotton tape or a semi-conductive nylon tape or a semi-conductive Duotron tape or a semi-conductive non-conductive tape. spinning.

The above-mentioned cable for computers or instruments is characterized in that the material of the grounding layer is copper tape, the thickness of which is 0.03-0.06 mm; .

The above-mentioned cable for computer or instrument is characterized in that the maximum DC resistance of the conductor at 20°C is 18.1Ω/km, the minimum insulation resistance of the cable at 20°C is 3000MΩ·km, and the maximum working The capacitance is 115 pF/m and the maximum operating temperature of the cable is 80°C.

Therefore, the utility model has the following main beneficial effects: easy processing and manufacturing, good shielding performance, wide range of suitable working temperature, and high flexibility.

Description of drawings

Fig. 1 is a schematic diagram of the cross-sectional structure of Embodiment 1 of the utility model.

Fig. 2 is a schematic diagram of the cross-sectional structure of Embodiment 2 of the utility model.

Fig. 3 is a schematic diagram of the cross-sectional structure of Embodiment 3 of the present utility model.

Fig. 4 is a schematic diagram of the cross-sectional structure of Embodiment 4 of the present utility model.

Fig. 5 is a schematic diagram of the cross-sectional structure of Example 5 of the present utility model.

Fig. 6 is a schematic diagram of the cross-sectional structure of Embodiment 6 of the present utility model.

Detailed ways

Implementation Example 1

Please see Fig. 1, a kind of cable that is used for computer or instrument, it is characterized in that it is made of three control wires that are arranged tangentially two by two each other, the first protective layer 6 that wraps outside the control wire, wraps in the first The outer shielding layer 7 outside the protective layer, the inner sheath 8 coated outside the outer shielding layer by extrusion molding, the armor layer 9 coated outside the inner sheath, and the outer sheath 10 coated outside the armored layer by extrusion molding The three control lines are the first control line 1a, the second control line 1b, and the third control line 1c. Each control line consists of two insulated wires, an inner shielding layer 3 outside the insulating wires, and an inner shielding layer outside the inner shielding layer. Each insulated wire is composed of a conductor 1 and an insulating layer 2 that is extruded and coated outside the conductor; two of the first control lines The axes of the conductors are in the same plane, which is called the first plane; the axes of the two conductors in the second control line are in the same plane, and this plane is called the second plane; the axes of the two conductors in the third control line are in the same plane. In the same plane, the plane is called the third plane; the first plane, the second plane, and the third plane are parallel to each other or the first plane, the second plane, and the third plane are 120 degrees to each other.

Implementation Example 2

Please see Fig. 2, a kind of cable for computer or instrument is characterized in that it is made up of three control wires that are arranged tangentially two by two, and the first protective layer 6 that is coated on the outside of the control wire, and is coated on the first The outer shielding layer 7 outside the protective layer, the inner sheath 8 wrapped outside the outer shielding layer by extrusion molding, the armor layer 9 wrapped outside the inner sheath, and the outer sheath wrapped outside the armored layer by extrusion molding ; The three control lines are the first control line 1a, the second control line 1b, and the third control line 1c. The grounding layer 4 is composed of a core sheath 5 that is extruded and coated outside the extruded ground layer. Each insulated wire is composed of a conductor 1 and an insulating layer 2 that is extruded and coated outside the conductor; the two conductors in the first control line The axes of the two conductors in the second control line are in the same plane, which is called the first plane; the axes of the two conductors in the second control line are in the same plane, and this plane is called the second plane; the axes of the two conductors in the third control line are in the same plane In the same plane, the plane is called the third plane; the second plane and the third plane are located in the same plane, and the first plane is perpendicular to the second plane.

Implementation Example 3

Please see Fig. 3, a kind of cable for computer or instrument is characterized in that it is made up of three control wires that are arranged tangentially two by two, and the first protective layer 6 that is coated on the outside of the control wires, and the first protective layer that is coated on the first The outer shielding layer 7 outside the protective layer, the inner sheath 8 wrapped outside the outer shielding layer by extrusion molding, the armor layer 9 wrapped outside the inner sheath, and the outer sheath wrapped outside the armored layer by extrusion molding ; The three control lines are the first control line 1a, the second control line 1b, and the third control line 1c. The grounding layer 4 is composed of a core sheath 5 that is extruded and coated outside the extruded ground layer. Each insulated wire is composed of a conductor 1 and an insulating layer 2 that is extruded and coated outside the conductor; the two conductors in the first control line The axes of the two conductors in the second control line are in the same plane, which is called the first plane; the axes of the two conductors in the second control line are in the same plane, and this plane is called the second plane; the axes of the two conductors in the third control line are in the same plane. In a plane, the plane is called a third plane; the second plane and the third plane are located in the same plane, and the first plane is parallel to the second plane.

Implementation example 4

Please see Fig. 4, a kind of cable that is used for computer or instrument is characterized in that it is made of three control wires that are arranged tangentially two by two each other, the first protective layer 6 that is coated outside the control wire, is coated on the first The outer shielding layer 7 outside the protective layer, the inner sheath 8 wrapped outside the outer shielding layer by extrusion molding, the armor layer 9 wrapped outside the inner sheath, and the outer sheath wrapped outside the armored layer by extrusion molding ; The three control lines are the first control line 1a, the second control line 1b, and the third control line 1c. The grounding layer 4 is composed of a core sheath 5 that is extruded and coated outside the extruded ground layer. Each insulated wire is composed of a conductor 1 and an insulating layer 2 that is extruded and coated outside the conductor; the two conductors in the first control line The axes of the two conductors in the second control line are in the same plane, which is called the first plane; the axes of the two conductors in the second control line are in the same plane, and this plane is called the second plane; the axes of the two conductors in the third control line are in the same plane. In a plane, the plane is called a third plane; the second plane and the third plane are located in the same plane, and the first plane is parallel to the second plane.

Implementation Example 5

Please see Fig. 5, a kind of cable that is used for computer or instrument is characterized in that it is made of three control wires that are arranged tangentially two by two, and the first protective layer 6 that is coated on the outside of the control wires, and the first protective layer that is coated on the first The outer shielding layer 7 outside the protective layer, the inner sheath 8 wrapped outside the outer shielding layer by extrusion molding, the armor layer 9 wrapped outside the inner sheath, and the outer sheath wrapped outside the armored layer by extrusion molding ; The three control lines are the first control line 1a, the second control line 1b, and the third control line 1c. The grounding layer 4 is composed of a core sheath 5 that is extruded and coated outside the extruded ground layer. Each insulated wire is composed of a conductor 1 and an insulating layer 2 that is extruded and coated outside the conductor; the two conductors in the first control line The axes of the two conductors in the second control line are in the same plane, which is called the first plane; the axes of the two conductors in the second control line are in the same plane, and this plane is called the second plane; the axes of the two conductors in the third control line are in the same plane In a plane, this plane is called a third plane; the second plane and the third plane are parallel, and the first plane is perpendicular to the second plane.

Implementation Example 6

Please see Fig. 6, a kind of cable that is used for computer or instrument is characterized in that it is made of three control wires that are arranged tangentially two by two each other, the first protective layer 6 that is coated on the outside of the control wire, and is coated on the first The outer shielding layer 7 outside the protective layer, the inner sheath 8 wrapped outside the outer shielding layer by extrusion molding, the armor layer 9 wrapped outside the inner sheath, and the outer sheath wrapped outside the armored layer by extrusion molding ; The three control lines are the first control line 1a, the second control line 1b, and the third control line 1c. The grounding layer 4 is composed of a core sheath 5 that is extruded and coated outside the extruded ground layer. Each insulated wire is composed of a conductor 1 and an insulating layer 2 that is extruded and coated outside the conductor; the two conductors in the first control line The axes of the two conductors in the second control line are in the same plane, which is called the first plane; the axes of the two conductors in the second control line are in the same plane, and this plane is called the second plane; the axes of the two conductors in the third control line are in the same plane In a plane, this plane is called the third plane; the first plane, the second plane, and the third plane form 60 degrees with each other.

Certainly, a cable for a computer or an instrument described in any of the above implementation examples is characterized in that each control wire may also be composed of three insulated wires or four insulated wires.

The cable for computers or instruments described in any of the above implementation examples is characterized in that the conductor is a type 1 conductor and is a single bare round copper wire with a diameter of 0.5-1.2 mm.

The cable for computers or instruments described in any of the above implementation examples is characterized in that the first protective layer is a polyester tape, which is spirally wrapped or longitudinally wrapped outside the control wire.

A cable for computers or instruments described in any of the above implementation examples is characterized in that the outer shielding layer is a copper tape with a thickness of 0.03-0.06 mm; the copper tape is spirally wrapped, and the wrapping overlaps 25-40%.

The cable for computers or instruments described in any of the above implementation examples is characterized in that the material of the inner sheath is polyvinyl chloride.

A cable for computers or instruments described in any of the above implementation examples is characterized in that the armor layer is a steel strip with a thickness of 0.1 to 0.3mm; The width is 2-4 mm.

The cable for computers or instruments described in any of the above implementation examples is characterized in that the material of the outer sheath is polyvinyl chloride.

A cable for computers or instruments described in any of the above implementation examples is characterized in that the material of the inner shielding layer is semi-conductive resistance water tape or semi-conductive cotton tape or semi-conductive nylon tape or semi-conductive Dotron tape or semi-conductive non-woven fabric.

A cable for computers or instruments described in any of the above-mentioned implementation examples is characterized in that the material of the ground layer is copper tape, and the thickness of the copper tape is 0.03-0.06 mm; Overlap 25-40%.

The arrangement of the control lines in the implementation examples 1, 2, 5, and 6 of the utility model greatly reduces the maximum working capacitance, and the maximum value is only 95pF/m, which achieves excellent anti-crosstalk performance.

A cable for computers or instruments described in any of the above implementation examples is characterized in that the maximum DC resistance of the conductor at 20°C is 18.1Ω/km, and the minimum insulation resistance of the cable at 20°C is 3000MΩ km, the maximum operating capacitance is 115pF/m, and the maximum operating temperature of the cable is 80°C.

Therefore, the utility model has the following main beneficial effects: easy processing and manufacturing, good shielding performance, wide range of suitable working temperature, and high flexibility.

The utility model is not limited to the above preferred mode of implementation, it should be understood that the concept of the utility model can be implemented in other forms, and they also fall within the protection scope of the utility model.

Claims (9)

1. A cable for a computer or an instrument, characterized in that it is composed of three control lines arranged tangentially two by two, a first protective layer wrapped outside the control line, and a first protective layer wrapped outside the first protective layer The outer shielding layer, the inner sheath that is extruded and coated on the outer shielding layer, the armor layer that is coated on the inner sheath, and the outer sheath that is extruded and coated on the outer sheath; the three control lines are the first Control line, second control line, third control line, each control line is composed of two insulated wires, an inner shielding layer outside the insulated wires, a grounding layer outside the inner shielding layer, extruded plastic coating on the extruded ground layer Each insulated wire is composed of a conductor and an insulating layer that is extruded and coated on the outside of the conductor; the axes of the two conductors in the first control line are in the same plane, which is called the first plane; The axes of the two conductors in the second control line are in the same plane, which is called the second plane; the axes of the two conductors in the third control line are in the same plane, and the plane is called the third plane; the first The plane, the second plane, and the third plane are parallel to each other or the first plane, the second plane, and the third plane are 120 degrees to each other, or the second plane and the third plane are located in the same plane, and the first plane is perpendicular to the second plane Or the second plane and the third plane are located in the same plane, the first plane is parallel to the second plane or the second plane and the third plane are parallel, the first plane is perpendicular to the second plane or the first plane, the second plane, the third plane The three planes are 60 degrees to each other. 2. A cable for computers or instruments according to claim 1, characterized in that the conductor is a Class 1 conductor, which is a single bare round copper wire with a diameter of 0.5-1.2mm. 3. A cable for computers or instruments according to claim 2, characterized in that the first protective layer is a polyester tape, which is spirally wrapped or longitudinally wrapped outside the control wire. 4. A cable for computers or instruments according to claim 3, characterized in that the outer shielding layer is copper tape, the thickness of which is 0.03-0.06mm; Overlap 25-40%. 5. A cable for computers or instruments according to claim 4, characterized in that the material of the inner sheath is polyvinyl chloride. 6. A cable for computers or instruments according to claim 5, characterized in that the armor layer is a steel strip with a thickness of 0.1 to 0.3mm; it is longitudinally coated, and the clad lap The connection width is 2-4mm. 7. A cable for computers or instruments according to claim 6, characterized in that the material of the outer sheath is polyvinyl chloride. 8. A cable for computers or instruments according to claim 7, characterized in that the material of the inner shielding layer is semi-conductive resistance water tape or semi-conductive cotton tape or semi-conductive nylon tape or semi-conductive Dot Dragon tape or semi-conductive non-woven fabric. 9. A cable for computers or instruments according to claim 8, characterized in that the material of the grounding layer is copper tape, the thickness of which is 0.03-0.06mm; Packets overlap by 25-40%.