CN115512878A - Encoder industrial control composite bus - Google Patents

Encoder industrial control composite bus Download PDF

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Publication number
CN115512878A
CN115512878A CN202211298190.0A CN202211298190A CN115512878A CN 115512878 A CN115512878 A CN 115512878A CN 202211298190 A CN202211298190 A CN 202211298190A CN 115512878 A CN115512878 A CN 115512878A
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China
Prior art keywords
layer
line
encoder
industrial control
insulating layer
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CN202211298190.0A
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Chinese (zh)
Inventor
赵燕
陈晓雯
刘东滨
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Guangzhou Yuedao Industrial Co ltd
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Guangzhou Yuedao Industrial Co ltd
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Priority to CN202211298190.0A priority Critical patent/CN115512878A/en
Publication of CN115512878A publication Critical patent/CN115512878A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring

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  • Insulated Conductors (AREA)

Abstract

The invention discloses an encoder industrial control composite bus, which comprises an outer skin layer, a power line, a local line, a signal line, a control line and a filling rope, wherein the power line, the local line and the control line are filled and shaped through the filling rope to form a cable; the outer skin layer is coated outside the finished cable; the control wire and the signal wire are both covered outside the conductor wire core structure by a double-layer shielding structure consisting of double-sided aluminum foil shielding and metal braid shielding; the control line and the signal line are internally provided with double-layer shielding structures, so that the shielding effect is improved, the bending resistance is improved, and the mechanical strength is improved.

Description

Encoder industrial control composite bus
Technical Field
The invention relates to the technical field of cables, in particular to an industrial control composite bus of a coder.
Background
At present, development of modern intelligent automatic chemical control technology drives the rise of industries matched with various variable frequency control systems, the industrial control servo technology is rapidly promoted, the market demand of matched encoders is increasingly large, and the application field of the encoders covers various fields of aerospace, ship-mounted vehicles, nuclear energy wind energy, geological exploration, high-speed rail vehicles, automotive electronics, intelligent automation, photovoltaic wind energy and the like; the encoder bus is an important component of the encoder, and the encoder bus and the encoder are perfectly matched, so that the operating efficiency of the encoder, such as high resolution, high-speed operation, crosstalk resistance, interference resistance, long-distance transmission and the like, is greatly improved. We will next go into the full range of features and characteristics of the encoder and the encoder bus.
The encoder bus is a special bus for connecting and transmitting electric energy to a special high-performance product of a control system, and can compile and convert signals or data into equipment for communication, transmission or storage, and the mechanical strength and the insulating property of the encoder bus.
Therefore, how to provide an encoder industrial control composite bus satisfying high mechanical strength and high insulation strength is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the invention provides an industrial control composite bus of an encoder, wherein a double-layer shielding structure is adopted in a control line and a signal line, so that the shielding capability is improved, the bending resistance is improved, and the mechanical strength is improved; in addition, the insulating material is selected from specially-made improved flexible propylene or thermoplastic polyurethane and other materials, such as thermoplastic flexible TPE materials; the material has low attenuation and good transmission performance flexibility, and simultaneously, the thickness of the insulating layer is thickened, the average thickness is not less than 0.7mm, and the thickness of the thinnest point is not less than 0.53mm. The sheath is made of halogen-free wear-resistant polyurethane TPU material, so that the anti-fatigue polyurethane TPU material is relieved, and the continuous reciprocating motion type flexible pipe is completely suitable for frequent bending occasions under severe operation environments.
In order to achieve the purpose, the invention adopts the following technical scheme:
an encoder industrial control composite bus comprises an outer skin layer, a power line, a local line, a control line, a signal line and a filling rope, wherein the power line, the local line, the signal line and the control line are filled and shaped through the filling rope to form a cable; the outer skin layer is coated outside the finished cable;
the control line with the inside double-deck shielding structure cladding that all adopts two-sided aluminium foil shielding and metallic braid shielding to constitute of signal line is outside conductor sinle silk structure.
Furthermore, the double-sided aluminum foil shield is formed by wrapping aluminum foil mylar;
the metal braided shield is braided by a tinned copper mesh.
Further, the insulating layers of the power line, the linear line and the control line inner conductor are made of thermoplastic flexible elastomer TPU high-mixed insulating materials;
the elongation of the insulating layer before and after insulation aging is not lower than 150%; the tensile strength of the insulating layer before and after insulation aging is not lower than 10.0Mpa; and the elongation change rate and the tensile strength change rate of the insulating layer before and after insulation aging are not more than 20 percent;
the average thickness of the insulating layer is not less than 0.7mm, and the minimum thickness of the insulating layer is not less than 0.53mm.
Further, the weight loss value of the insulating layer is not lower than 2.0mg/cm after the insulating layer passes a weight loss test 2 ；
The insulating layer does not crack in 16 hours under the low-temperature environment of 15 +/-2 ℃ through a low-temperature winding test;
the insulating layer passes through an insulation impact test and does not crack for 1 hour in a high-temperature environment of 150 +/-2 ℃.
Further, the outer skin layer comprises a nylon tape wrapping layer, a metal total shielding layer and a protective sleeve layer;
the nylon tape wrapping layer is coated outside the finished cable, and the metal total shielding layer is coated outside the nylon tape wrapping layer; the protective jacket layer is coated outside the metal total shielding layer;
the metal total shielding layer is formed by weaving bare copper wires or tinned wires, and the weaving density is more than or equal to 85%.
Furthermore, the protective sleeve layer is made of thermoplastic flexible elastomer TPU high-mixed insulating material,
the elongation of the protective sheath layer before and after insulation aging is not lower than 150%; the tensile strength of the protective sheath layer before and after insulation aging is not lower than 10.0Mpa; and the elongation change rate and the tensile strength change rate of the protective jacket layer before and after insulation aging are not more than 20%;
the average thickness of the protective jacket layer is 0.76mm.
Further, the protective jacket passes through a weight loss test, and the weight loss value of the protective jacket is less than or equal to 2.0mg/cm 2 ；
The protective jacket layer does not crack in 16 hours under the low-temperature environment of 15 +/-2 ℃ through a low-temperature winding test;
the protective jacket layer does not crack in 1 hour under the high-temperature environment of 150 +/-2 ℃ through an insulation impact test.
Furthermore, the power line comprises two conducting wires which are subjected to color separation and paired twisting, and the two conducting wires are filled and shaped through aramid fiber filling strips.
The invention has the beneficial effects that:
according to the technical scheme, compared with the prior art, the industrial control composite bus of the encoder is provided, and the control line and the signal line are internally provided with double-layer shielding structures, so that the shielding capacity is improved, the bending resistance is improved, and the mechanical strength is improved; in addition, the insulating material is selected from specially-made improved flexible propylene or thermoplastic polyurethane and other materials, such as thermoplastic flexible TPE materials; the material has low attenuation and good transmission performance flexibility, and simultaneously, the thickness of the insulating layer is thickened, the average thickness is not less than 0.7mm, and the thickness of the thinnest point is not less than 0.53mm. The sheath is made of halogen-free wear-resistant polyurethane TPU material, which relieves fatigue resistance, and is completely suitable for frequent bending occasions under continuous reciprocating motion and harsh operating environments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of an industrial control composite bus of an encoder according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of the power cord of the present invention;
FIG. 3 is a schematic view of the internal structure of the control line according to the present invention;
wherein, 1-power line; 2-zoned linear; 3-a control line; 4-a signal line; 5-filling ropes; 6-a drainage wire; 7-nylon belt wrapping layer; 8-metal total shield layer; 9-protective jacket layer, 10-outer insulating layer, 11-conductor, 12-insulating layer, 13-aramid fiber filling strip and 14-double-layer shielding structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses an encoder industrial control composite bus, which comprises an outer skin layer, a power line 1, a local linear line 2, a control line 3, a signal line 4 and a filling rope 5, wherein the power line 1, the local linear line 2, the control line 3 and the signal line 4 are filled and shaped through the filling rope 5 to form a cable; the outer skin layer is coated outside the cable;
the inside double-deck shielding structure 14 cladding that all adopts two-sided aluminium foil shielding and metallic braid shielding to constitute of control line 3 and signal line 4 is outside at conductor core structure.
The conductors 11 in the power line 1, the linear line 2, the control line 3 and the signal line 4 are all stranded conductors made of fine stranded annealed soft and fine copper wire bundles, and the insulating layer 12 extruded by technical design is arranged outside the conductors 11 to form a single insulated wire. The control wire 3 and the signal wire 4 are internally provided with wire pairs formed by twisting two insulated wires in pairs, the twisted wire pairs are lapped and wrapped by adopting aluminum foils in an overlapping way to form a shielding layer, and a drainage wire is added for drainage protection when the lapping and wrapping shielding are carried out; the partial shield layer is externally covered with an external insulating layer 10.
In another embodiment, the double-sided aluminum foil shield is formed by wrapping aluminum foil mylar; the metal braided shield is braided by a tinned copper mesh.
In another embodiment, the insulation layer 12 of the inner conductor 11 of the power supply line 1, the linear line 2 and the control line 3 is made of thermoplastic flexible elastomer TPU high-mix insulation material;
the elongation of the insulating layer 12 before and after insulation aging is not less than 150%; the tensile strength of the insulating layer 12 before and after insulation aging is not lower than 10.0Mpa; and the elongation change rate and the tensile strength change rate of the insulating layer 12 before and after insulation aging are not more than 20%;
the average thickness of the insulating layer 12 is not less than 0.7mm, and the minimum thickness of the insulating layer 12 is not less than 0.53mm.
In another embodiment, the insulating layer 12 has a weight loss value of not less than 2.0mg/cm after the insulating layer 12 passes the weight loss test 2 ；
The insulating layer 12 does not crack in 16 hours in a low-temperature environment of 15 +/-2 ℃ through a low-temperature winding test;
the insulating layer 12 passes the insulation impact test and does not crack for 1 hour under the high temperature environment of 150 +/-2 ℃.
In another embodiment, the outer skin layer comprises a nylon tape wrapping layer 7, a metal total shielding layer 8 and a protective sheath layer 9;
the nylon tape wrapping layer 7 is coated outside the finished cable, and the metal total shielding layer 8 is coated outside the nylon tape wrapping layer 7; the protective sheath layer 9 is coated outside the metal total shielding layer 8;
the metal total shielding layer 8 is formed by weaving bare copper wires or tinned wires, and the weaving density is more than or equal to 85%.
In another embodiment, the protective jacketing layer 9 is a thermoplastic flexible elastomer TPU high mix insulation,
the elongation of the protective sheath layer 9 before and after insulation aging is not lower than 150%; the tensile strength of the protective jacket layer 9 before and after insulation aging is not lower than 10.0Mpa; the elongation change rate and the tensile strength change rate of the protective jacket layer before and after insulation aging are not more than 20 percent;
the average thickness of the protective sheath 9 is 0.76mm.
In another embodiment, the protective cover 9 passes the weight loss test, and the weight loss value of the protective cover 9 is less than or equal to 2.0mg/cm 2 ；
The protective jacket layer 9 does not crack in 16 hours under the low-temperature environment of 15 +/-2 ℃ through a low-temperature winding test;
the protective sheath 9 passes the insulation impact test and does not crack in the high temperature environment of 150 plus or minus 2 ℃ for 1 hour.
In another embodiment, the power supply line 1 internally comprises two conducting wires twisted in pairs in a color separation manner, and the two conducting wires are filled and shaped through aramid filling strips.
The bus comprises a power line 1, a linear line 2, a control line 3 and a signal line 4, all units are grouped and cabled according to the technical design requirements of an encoder, aramid fiber ropes are added during cabling to perform filling and reinforcing, the rounding and flexibility of the cable are ensured, the torsion resistance and bending resistance and extension strength are sufficient, a thin nylon cable tie is adopted outside the cabling, overlapping covers are overlapped, wrapped and tightened, and a semi-finished product of the encoder bus is formed; the outside of the semi-finished product is woven by metal to form a total shielding layer; the outermost layer is a protective jacket layer made of thermoplastic high-flexibility TPU mixed material.
The structure and the structural parameters of each part of the invention are shown in table 1:
TABLE 1 bus structure size (unit: mm)
Figure BDA0003903330470000051
Figure BDA0003903330470000061
In addition, the external diameter of the bus cable is 7.4-9.4mm, and the section ovality of the cable is not more than 15 percent;
for the electrical performance, a finished product voltage withstand test (20m, 20 +/-5 ℃,1 h) can be carried out on the bus cable, and the breakdown is avoided at the speed of 2.0kVAC/15 min;
the electrical properties of the cable in each item specification are shown in the following table
Figure BDA0003903330470000062
Figure BDA0003903330470000071
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The encoder industrial control composite bus is characterized by comprising an outer skin layer, a power line, a local line, a signal line, a control line and a filling rope, wherein the power line, the signal line, the local line and the control line are filled and shaped through the filling rope to form a cable; the outer skin layer is coated outside the finished cable;
the control line with the inside double-deck shielding structure cladding that all adopts two-sided aluminium foil shielding and metallic braid shielding to constitute of signal line is outside conductor sinle silk structure.
2. The industrial control composite bus of the encoder according to claim 1, wherein the double-sided aluminum foil shield is wrapped by aluminum foil mylar;
the metal braided shield is braided by a tinned copper mesh.
3. The encoder industrial control composite bus of claim 1, wherein the insulation layers of the power line, the linear line and the control line inner conductor are made of thermoplastic flexible elastomer (TPU) high-mix insulation materials;
the elongation of the insulating layer before and after insulation aging is not less than 150%; the tensile strength of the insulating layer before and after insulation aging is not lower than 10.0Mpa; and the elongation change rate and the tensile strength change rate of the insulating layer before and after insulation aging are not more than 20 percent;
the average thickness of the insulating layer is not less than 0.7mm, and the minimum thickness of the insulating layer is not less than 0.53mm.
4. The industrial control composite bus of the encoder according to claim 3,
the weight loss value of the insulating layer is not lower than 2.0mg/cm after the insulating layer passes the weight loss test 2 ；
The insulating layer does not crack in 16 hours under the low-temperature environment of 15 +/-2 ℃ through a low-temperature winding test;
the insulating layer passes through an insulation impact test and does not crack for 1 hour in a high-temperature environment of 150 +/-2 ℃.
5. The encoder industrial control composite bus of claim 1, wherein the outer skin layer comprises a nylon tape wrapping layer, a metal total shielding layer and a protective sheath layer;
the nylon tape wrapping layer is coated outside the finished cable, and the metal total shielding layer is coated outside the nylon tape wrapping layer; the protective jacket layer is coated outside the metal total shielding layer;
the metal total shielding layer is formed by weaving bare copper wires or tinned wires, and the weaving density is more than or equal to 85%.
6. The encoder industrial control composite bus of claim 5, wherein the protective sheath layer is made of thermoplastic flexible elastomer TPU high-mixed insulating material,
the elongation of the protective sheath layer before and after insulation aging is not lower than 150%; the tensile strength of the protective sheath layer before and after insulation aging is not lower than 10.0Mpa; and the elongation change rate and the tensile strength change rate of the protective jacket layer before and after insulation aging are not more than 20%;
the average thickness of the protective jacket layer is 0.76mm.
7. The industrial control composite bus of encoder according to claim 6, wherein the weight loss value of the protective sheath layer is less than or equal to 2.0mg/cm after the protective sheath layer passes the weight loss test 2 ；
The protective jacket layer does not crack in 16 hours under the low-temperature environment of 15 +/-2 ℃ through a low-temperature winding test;
the protective jacket layer does not crack in 1 hour under the high-temperature environment of 150 +/-2 ℃ through an insulation impact test.
8. The encoder industrial control composite bus of claim 1, wherein the power line comprises two wires twisted in pairs in a color separation manner, and the two wires are filled and shaped through aramid fiber filling strips.
9. The encoder industrial control composite bus as claimed in claim 5, wherein the nylon tape is embedded with a drainage wire outside the lapping layer; the drainage wire can also be used for grounding.
CN202211298190.0A 2022-10-22 2022-10-22 Encoder industrial control composite bus Pending CN115512878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211298190.0A CN115512878A (en) 2022-10-22 2022-10-22 Encoder industrial control composite bus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211298190.0A CN115512878A (en) 2022-10-22 2022-10-22 Encoder industrial control composite bus

Publications (1)

Publication Number Publication Date
CN115512878A true CN115512878A (en) 2022-12-23

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Application Number Title Priority Date Filing Date
CN202211298190.0A Pending CN115512878A (en) 2022-10-22 2022-10-22 Encoder industrial control composite bus

Country Status (1)

Country Link
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