DE102019115015B3 - A high-strength, bend-resistant composite cable for electrical energy and data transmission - Google Patents

Abstract

The present invention provides a high-strength, bend-resistant composite cable for electrical energy and data transmission, which comprises an optical waveguide body, a stretched force relief layer, stretched force relief body, movable force relief rods, a ring for distributing the relief force and an outer protective layer, the surface of the optical waveguide body being of a Loose tube is surrounded, wherein the outer surface of the loose tube is surrounded by an inner water barrier layer, wherein the outer surface of the inner water barrier layer is surrounded by an inner protective layer, wherein the outer surface of the inner protective layer is surrounded by an outer water barrier layer. The invention relates to the field of composite cables for the transmission of electrical energy and data. With the high-strength, flexible composite cable for electrical energy and data transmission, which is used outdoors, the direction of the external force is changed several times and the force is relieved several times. The final center for absorbing force is concentrated on the outer environment of the fiber optic body and the force is distributed to all movable force relief rods. Through the combination of the loose tube, the inner water barrier layer, the inner protective layer, the outer water barrier layer and an aramid yarn, the composite cable for electrical energy and data transmission is protected in order to effectively solve the problem that an ordinary composite cable for electrical energy and data transmission, when the composite cable for electrical energy and data transmission is subjected to an external force, is easily bent at a certain point when a strong force is applied and the stress points are more concentrated, the bending of the composite cable for

Description

Field of invention

The present invention relates to the technical field of composite cables for electrical energy and data transmission and, in particular, to a high-strength, flexurally resistant composite cable for electrical energy and data transmission.

State of the art

The composite cable for electrical energy and data transmission allows audio information to be transmitted with high capacity over great distances. This technique is used in various fields. Safe and reliable audio transmission media are particularly important when using composite cables for electrical energy and data transmission outdoors. The composite cables currently used outdoors for the transmission of electrical energy and data must have a certain flexural strength. Since the outdoor environment is more complex, there is a high possibility that the composite cable for electrical power and data transmission will collide and cause a local bend. With the bent composite cable for electrical energy and data transmission, there is a certain loss and, as a result, it cannot transmit high-quality information effectively. Based on this, the development direction of composite cables for electrical energy and data transmission is mainly determined by the choice of material.

By selecting a high-strength protective material, the external impact forces acting on the composite cable for electrical energy and data transmission can be reduced. Regardless of the material changes made, however, the composite cable for electrical energy and data transmission always maintains the round shape, which simplifies the complete protection of the composite cable for electrical energy and data transmission. However, it is also susceptible to locally occurring loads, so that a given internal point is subjected to a high impact force, resulting in local bending. When an ordinary composite cable for electrical energy and data transmission is subjected to an external force, the composite cable for electrical energy and data transmission is slightly bent at a certain point when a strong force is applied and the stress points are more concentrated, with the bending of the composite cable for electrical energy and data transmission results in a loss, which greatly affects information transmission. There is therefore a need for a high-strength, rigid composite cable for transmitting electrical energy and data.

Pamphlet DE 11 2015 002 173 T5 describes an equipotential anti-penetration optical fiber assembly for high voltage composite photoelectric cables. Pamphlet DE 38 01 409 A1 discloses the structure of a submarine fiber optic cable. From the pamphlet CN 107086070 A Also known is a waterproof voltage-resistant composite photoelectric cable. In addition, the publication US 6195487 B1 the structure of a composite cable for distributing electrical energy to components in an optical fiber network and for transmitting optical signals between optical fiber network components is shown. The cited publications essentially describe a conventional high-strength composite cable for electrical energy or data transmission, which is provided with an optical waveguide body, each with at least one protective layer, a water barrier layer and a force relief layer and with mechanical reinforcement.

Object of the invention

Technical problems to be solved

In view of the shortcomings of the prior art, the present invention provides a high-strength, bend-resistant composite cable for electrical power and data transmission, which solves the problems that an ordinary composite cable for electrical power and data transmission when the composite cable for electrical power and data transmission is subjected to an external force, is slightly bent at a certain point when a strong force is applied, and the stress points are more concentrated, wherein the bending of the composite cable for electrical power and data transmission results in a loss, which greatly affects the information transmission.

Technical solution

The above-mentioned object is achieved in the present invention by the following technical solutions: A high-strength, flexurally resistant composite cable for electrical energy and data transmission comprises an optical waveguide body, an expanded force relief layer, expanded force relief body, movable force relief rods, a ring for distributing the relief force and an outer one Protective layer, the surface of the optical waveguide body being surrounded by a loose tube, the outer surface of the loose tube being surrounded by an inner one Water barrier layer is surrounded, the outer surface of the inner water barrier layer is surrounded by an inner protective layer, the outer surface of the inner protective layer is surrounded by an outer water barrier layer, the outer surface of the outer water barrier layer is wrapped with an aramid yarn, the outer surface of the Aramid yarn is surrounded by a wear-resistant layer, the surface of the stretched force relief layer has a folded shape, the material of the stretched force relief layer comprising rubber, the outer surface of the ring for distributing the relief force being firmly connected to the inner wall of the stretched force relief layer, the Inner wall of the ring for distributing the relief force is firmly connected to the outer surface of the wear-resistant layer, the surface of the ring being provided with several pivot holes for distributing the relief force, the upper surface of the respective movable force relief rod is rotatably connected to the inner wall of the respective pivot hole, wherein the surfaces of the movable force relief rods are firmly connected to the first gravity guide layer, the surfaces of the movable force relief rods are firmly connected to the second gravity guide layer, the surface the first gravity guiding layer and the surface of the second gravity guiding layer are entangled, the first gravity guiding layer and the second gravity guiding layer surrounding the respective movable force relief rod and thus forming winding circles, the number of which is equal to the number of movable force relief rods, wherein the inner wall of the expanded force relief layer is fixedly connected to the plurality of force relief guide blocks, the surfaces of the force relief guide blocks being connected to the surface of the first force of gravity t guide layer are slidably in contact, the surfaces of the force relief guide blocks are slidably in contact with the surface of the second gravity guide layer, the space between the stretched force relief layer and the wear-resistant layer being filled with filler sand.

The surface of the stretched force relief layer is firmly connected to the surfaces of the stretched force relief body, with several stretched force relief bodies being provided, the center of the stretched force relief layer being used as the center of the circle for the several stretched force relief bodies and these being distributed around the circle center, with the two sides of the respective stretched force relief body have a spread shape, the surfaces of the stretched force relief body being firmly connected to the inner wall of the outer protective layer, an arched load-bearing plate being arranged between two adjacent stretched force relief bodies and firmly connected to these two, with several reinforcing reinforcements on the inside are embedded in the outer protective layer, with the middle of the outer protective layer being used as the center of the circle for the several reinforcement reinforcements d and these are distributed around the center of the circle, the two ends of the outer protective layer each being firmly connected with a sealing ring.

The outer water barrier layer and the inner water barrier layer are preferably made of the same material, both the outer water barrier layer and the inner water barrier layer being a water-swellable water barrier layer for conventional composite cables for electrical energy and data transmission.

The material of the loose tube preferably comprises polybutyl methacrylate, polybutyl methacrylate currently being the most frequently used material for loose tubes.

Preferably, both the material of the inner protective layer and the material of the outer protective layer comprise rubber, the inner protective layer being located between the aramid yarn and the inner water barrier layer.

The aramid yarn is preferably a para-aramid yarn, which is often used for composite cables for electrical energy and data transmission, the aramid yarn being located between the outer water barrier layer and the wear-resistant layer, the material of the wear-resistant layer comprising rubber.

The number of movable force relief rods is preferably equal to the number of pivot holes, the movable force relief rods corresponding one-to-one with the pivot holes, the center of the ring being used as the center of the circle for the several pivot holes to distribute the relief force, and these are distributed around the center of the circle .

Preferably, the number of force relief guide blocks is equal to the number of movable force relief rods, the surface of the respective force relief guide block being arcuate.

Preferably, the surfaces of the force relief guide blocks are provided with embedded sliding balls, both the surfaces of the first gravity guide layer and the surfaces of the second gravity guide layer being slidably in contact with the surfaces of the sliding balls.

The filling sand is preferably ordinary dry fine sand, the filling sand being able to flow between the stretched force-relieving layer and the wear-resistant layer.

Beneficial effects

1. (1) In the present invention, when an external force is applied to a local point of the composite cable for electrical power and data transmission, the external force is first transmitted to the stretched force relief body or the arched load-bearing plate via the outer protective layer, whereby the stretched force relief body is deformed . On the one hand, part of the external force is absorbed and, on the other hand, the two sides of the respective stretched force relief body are located close to the stretched force relief layer, so that the contact area and the surface that transfers the external force are enlarged, thus increasing the force absorption area, the local load and at the same time to achieve that the external force is distributed to the sides by separating the two sides of the respective stretched force relief body and the direction of the external force is changed so that the external force does not impinge directly on the optical waveguide body.
2. (2) In the present invention, an elongated force relieving layer is arranged. When the stretched force relief body is deformed, the force relief guide blocks are pulled through the surface of the stretched force relief layer in such a way that they deform along their tangential direction. The deformation of the stretched force relief layer absorbs part of the external force, while at the same time the external force is shifted to both sides. Due to the stretched force relief body, the external force is reduced and the direction of the external force is changed, thereby achieving the effects of multiple changes in the direction of force and multiple force relief.
3. (3) After the multiple force relief and the multiple change in the direction of force in the present invention, the force pushes over the stretched force relief layer in the direction of the force relief guide blocks or the winding circles, which by surrounding the first gravity guide layer and the second gravity guide layer around the movable force relief rods are formed around, wherein on the surface of the second gravity guide layer or the surface of the first gravity guide layer, the force relief guide blocks move along the curved surfaces so that the force is directed directly to all winding circles, the winding circles around the Rotate the movable load relief rods to direct the force into the movable load relief rods so that the movable load relief rods can withstand the remaining pressure during impact.
4. (4) In the present invention, filler sand is used. On the one hand, the filling sand moves so that the filling sand located in the winding circles, when the first gravity guide layer and the second gravity guide layer are closely entangled by the force acting, is compressed and absorbs part of the external force. On the other hand, the acting force causes the filling sand to flow between the stretched force relief layer and the wear-resistant layer in order to distribute the force.
5. (5) In the present invention, the direction of the external force is changed several times and a load relief is carried out several times. The final center for absorbing force is concentrated on the outer environment of the fiber optic body and the force is distributed to all movable force relief rods. Through the combination of the loose tube, the inner water barrier layer, the inner protective layer, the outer water barrier layer and an aramid yarn, the composite cable for electrical energy and data transmission is protected in order to effectively solve the problem that an ordinary composite cable for electrical energy and data transmission, when the composite cable for electrical power and data transmission is subjected to an external force, is easily bent at a certain point when a strong force is applied and the stress points are more concentrated, the bending of the composite cable for electrical power and data transmission leads to a loss, which the Information transmission severely impaired.

Figure list

• 1 eine schematische Ansicht des Aufbaus gemäß der vorliegenden Erfindung;
• 2 eine Schnittansicht des Aufbaus der äußeren Schutzschicht gemäß der vorliegenden Erfindung;
• 3 eine vergrößerte Ansicht des Aufbaus der Stelle A in 2 gemäß der vorliegenden Erfindung;
• 4 eine Schnittansicht des Aufbaus des Rings zur Verteilung der Entlastungskraft gemäß der vorliegenden Erfindung.

The drawings used to explain the exemplary embodiment show:

• 1 a schematic view of the structure according to the present invention;
• 2 Fig. 3 is a sectional view showing the structure of the outer protective layer according to the present invention;
• 3 an enlarged view of the structure of the point A in 2 according to the present invention;
• 4th Fig. 3 is a sectional view showing the structure of the relief force distribution ring according to the present invention.

Detailed description of the embodiment

In the following, the technical solution contained in the embodiment of the present invention will be described in detail and completely with reference to the drawings relating to the embodiment of the present invention. The exemplary embodiment described here of course represents only one of the exemplary embodiments of the present invention and not all exemplary embodiments. All further exemplary embodiments that the person skilled in the art can arrive at without creative input on the basis of the exemplary embodiment shown of the present invention also fall within the scope of the present invention.

It gets to the 1 to 4th Referenced. In the present exemplary embodiment of the invention, a high-strength, bending-resistant composite cable for electrical energy and data transmission is provided, which has an optical waveguide body 1 , a stretched force relief layer 2 , stretched force relief body 3 , movable force relief rods 4th , a ring to distribute the relief force 5 and an outer protective layer 6 comprises, wherein the surface of the optical waveguide body 1 from a loose tube 7th is surrounded. The material of the loose tube 7th includes polybutyl methacrylate. Polybutyl methacrylate is currently the most widely used material for loose tubes 7th . The outer surface of the loose tube 7th is of an inner water barrier 8th surrounded, the outer surface of the inner water barrier layer 8th from an inner protective layer 9 is surrounded, the outer surface of the inner protective layer 9 from an outer water barrier 10 is surrounded. The outer water barrier 10 and the inner water barrier 8th consist of the same material, with both the outer water barrier layer 10 as well as the inner water barrier layer 8th are a water-swellable water barrier layer for ordinary composite cables for electrical energy and data transmission. The outer surface of the outer water barrier 10 is made with an aramid yarn 11 wrapped around. Both the material of the inner protective layer 9 as well as the material of the outer protective layer 6 include rubber, which is the inner protective layer 9 between the aramid yarn 11 and the inner water barrier 8th is located. The outer surface of the aramid yarn 11 is of a wear-resistant layer 12 surround. The aramid yarn 11 is a para-aramid yarn 11 , which is often used for composite cables for the transmission of electrical energy and data, whereby the aramid yarn 11 between the outer water barrier 10 and the wear-resistant layer 12 located, the material of the wear-resistant layer 12 Rubber covers. The surface of the stretched force relief layer 2 has a folded shape, the material of the stretched force relief layer 2 Includes rubber, the outer surface of the ring for distributing the relief force 5 with the inner wall of the stretched force relief layer 2 is firmly connected, the inner wall of the ring to distribute the relief force 5 with the outer surface of the wear-resistant layer 12 is firmly connected, the surface of the ring to distribute the relief force 5 with several pivot holes 13 is provided. The number of movable force relief bars 4th is equal to the number of pivot holes 13 , with the movable force relief rods 4th one on one with the pivot holes 13 correspond, the center of the ring for distributing the relief force 5 as the center of the circle for the multiple pivot holes 13 is used and these are distributed around the center of the circle. The surface of the respective movable force relief rod 4th is with the inner wall of the respective pivot hole 13 rotatably connected, the surfaces of the movable force relief rods 4th with the first gravity guide layer 14th are firmly connected, the surfaces of the movable force relief rods 4th with the second gravity guide layer 15th are firmly connected, the surface of the first gravity guide layer 14th and the surface of the second gravity guide layer 15th are entangled, the first gravity guide layer 14th and the second gravity guide layer 15th the respective movable force relief rod 4th surrounded and thus winding circles, the number of which equals the number of movable force relief bars 4th is, form, the inner wall of the stretched force relief layer 2 with the multiple force relief guide blocks 16 is firmly connected. The number of force relief guide blocks 16 is equal to the number of movable force relief rods 4th , the surface of the respective force relief guide block 16 is arcuate. The surfaces of the force relief guide blocks 16 are with embedded sliding balls 20th provided, both the surfaces of the first gravity guide layer 14th as well as the surfaces of the second gravity guide layer 15th with the surfaces of the sliding balls 20th are slidably in contact. The surfaces of the force relief guide blocks 16 stand with the surface of the first gravity guide layer 14th slidably in contact with the surfaces of the force relief guide blocks 16 with the surface of the second gravity guide layer 15th are slidably in contact, wherein the space between the stretched force relief layer 2 and the wear-resistant layer 12 with filling sand 17th is filled. The filler sand 17th is an ordinary dry fine sand, the filler sand 17th between the stretched force relief layer 2 and the wear-resistant layer 12 can flow.

The surface of the stretched force relief layer 2 is with the surfaces of the stretched force relief body 3 firmly connected, with several stretched force relief bodies 3 are provided, with the center of the stretched force relief layer 2 as the center of the circle for the several stretched force relief bodies 3 is used and these are distributed around the center of the circle, with the two sides of the respective stretched force relief body 3 have a spread shape, the surfaces of the stretched force relief body 3 with the inner wall of the outer protective layer 6 are firmly connected, with an arcuate load-bearing plate 18th between two adjacent stretched force relief bodies 3 arranged and firmly connected to these two, with several reinforcement reinforcements 19th on the inside of the outer protective layer 6 are embedded, with the middle of the outer protective layer 6 as the center of the circle for the several reinforcement reinforcements 19th and these are distributed around the center of the circle, with the two ends of the outer protective layer 6 each with a sealing ring 21st are firmly connected.

If, during use, an external force hits a local point of the composite cable for electrical energy and data transmission, the external force is first over the outer protective layer 6 on the stretched force relief body 3 or the arched load-bearing plate 18th transferred, whereby the stretched force relief body 3 deform. On the one hand, part of the external force is absorbed and, on the other hand, there are both sides of the respective stretched force relief body 3 close to the stretched force relief layer 2 , so that the contact area and the surface transmitting the external force are enlarged, thus increasing the force-absorbing area, reducing the local load and at the same time achieving the external force by separating the two sides of the respective stretched force relief body 3 to the sides and the direction of the external force is changed so that the external force does not directly affect the fiber optic body 1 hits. During the deformation of the stretched load relief body 3 become the force relief guide blocks 16 through the surface of the stretched force relief layer 2 drawn so that they deform along their tangential direction. Through the deformation of the stretched force relief layer 2 part of the external force is absorbed, whereby the external force is simultaneously shifted to both sides. After the force has been relieved several times and the direction of force has changed several times, the force pushes over the stretched force relief layer 2 toward the force relief guide blocks 16 or the winding circles created by surrounding the first gravity guide layer 14th and the second gravity guide layer 15th around the movable force relief rods 4th are formed around, being on the surface of the second gravity guide layer 15th or the surface of the first gravity guide layer 14th the force relief guide blocks 16 move along the curved surfaces so that the force is sent directly to all of the winding circles, with the winding circles surrounding the movable force relief bars 4th rotate to transfer the force into the movable force relief rods 4th to direct so that the movable force relief rods 4th withstand the remaining pressure in the event of impact. In this way, the entire process of resisting external forces and bending is completed in the case of the high-strength, bend-resistant composite cable for electrical power and data transmission that is used outdoors.

List of reference symbols

1

Fiber optic body;

2

stretched force relief layer;

3

stretched force relief body;

4th

movable force relief bar;

5

Ring for distributing the relief force;

6th

outer protective layer; 7 loose tube;

8th

inner water barrier;

9

inner protective layer;

10

outer water barrier;

11

Aramid yarn;

12

wear-resistant layer;

13

Pivot hole;

14th

first gravity guide layer;

15th

second gravity guide layer;

16

Force relief guide block;

17th

Filler sand;

18th

arched load-bearing plate;

19th

Reinforcement reinforcement; 20 sliding ball;

21st

Sealing ring

Claims (9)

A high-strength, bend-resistant composite cable for electrical energy and data transmission, characterized in that it has an optical waveguide body (1), an expanded force relief layer (2), stretched force relief body (3), movable force relief rods (4), a ring for distributing the relief force (5 ) and an outer protective layer (6), the surface of the optical waveguide body (1) being surrounded by a loose tube (7), the outer surface of the loose tube (7) being surrounded by an inner water barrier layer (8), the outer surface the inner water barrier layer (8) is surrounded by an inner protective layer (9), the outer surface of the inner protective layer (9) being surrounded by an outer water barrier layer (10), the outer surface of the outer water barrier layer (10) being covered with an aramid yarn ( 11) is wrapped, the outer surface of the aramid yarn (11) being surrounded by a wear-resistant layer (12), wherein the surface of the stretched force relief layer (2) has a folded shape, the material of the stretched force relief layer (2) comprising rubber, the outer surface of the ring for distributing the relief force (5) firmly connected to the inner wall of the stretched force relief layer (2) is, wherein the inner wall of the ring for distributing the relief force (5) is firmly connected to the outer surface of the wear-resistant layer (12), the surface of the ring for distributing the relief force (5) is provided with several pivot holes (13), wherein the surface of the respective movable force relief rod (4) is rotatably connected to the inner wall of the respective pivot hole (13), the surfaces of the movable force relief rods (4) being firmly connected to the first gravity guide layer (14), the surfaces of the movable force relief rods (4) firmly verbun with the second gravity guide layer (15) are, wherein the surface of the first gravity guide layer (14) and the surface of the second gravity guide layer (15) are entangled, the first gravity guide layer (14) and the second gravity guide layer (15) the respective movable Force relief rod (4) surround and thus form winding circles, the number of which is equal to the number of movable force relief rods (4), the inner wall of the stretched force relief layer (2) is firmly connected to the several force relief guide blocks (16), the surfaces of the Force relief guide blocks (16) are slidably in contact with the surface of the first gravity guide layer (14), the surfaces of the force relief guide blocks (16) slidably in contact with the surface of the second gravity guide layer (15), the Space between the stretched force relief layer (2) and the wear-resistant layer (12) with foot llsand (17) is filled; wherein the surface of the stretched force relief layer (2) is firmly connected to the surfaces of the stretched force relief body (3), several stretched force relief bodies (3) being provided, the center of the stretched force relief layer (2) as the center of a circle for the several stretched force relief bodies (3 ) is used and these are distributed around the center of the circle, the two sides of the respective stretched force relief body (3) having a spread shape, the surfaces of the stretched force relief body (3) being firmly connected to the inner wall of the outer protective layer (6), wherein an arc-shaped load-bearing plate (18) is arranged between two adjacent stretched force relief bodies (3) and firmly connected to these two, with several reinforcement reinforcements (19) embedded on the inside of the outer protective layer (6), the middle of the outer protective layer ( 6) as circle mean point is used for the several reinforcement reinforcements (19) and these are distributed around the center of the circle, the two ends of the outer protective layer (6) each being firmly connected with a sealing ring (21). A high-strength, bend-resistant composite cable for electrical energy and data transmission Claim 1 , characterized in that the outer water barrier layer (10) and the inner water barrier layer (8) consist of the same material, both the outer water barrier layer (10) and the inner water barrier layer (8) being a water-swellable water barrier layer for ordinary composite cables for electrical energy and data transmission are. A high-strength, bend-resistant composite cable for electrical energy and data transmission Claim 1 , characterized in that the material of the loose tube (7) comprises polybutyl methacrylate, polybutyl methacrylate currently being the most frequently used material for loose tubes (7). A high-strength, bend-resistant composite cable for electrical energy and data transmission Claim 1 , characterized in that both the material of the inner protective layer (9) and the material of the outer protective layer (6) comprise rubber, the inner protective layer (9) being located between the aramid yarn (11) and the inner water barrier layer (8). A high-strength, bend-resistant composite cable for electrical energy and data transmission Claim 1 , characterized in that the Aramid yarn (11) is a para-aramid yarn (11), which is often used for composite cables for electrical energy and data transmission, the aramid yarn (11) being located between the outer water barrier layer (10) and the wear-resistant layer (12), wherein the material of the wear-resistant layer (12) comprises rubber. A high-strength, bend-resistant composite cable for electrical energy and data transmission Claim 1 , characterized in that the number of movable force relief rods (4) is equal to the number of pivot holes (13), the movable force relief rods (4) corresponding one to one with the pivot holes (13), the center of the ring for distributing the relief force (5) is used as the center of the circle for the multiple pivot holes (13) and these are distributed around the center of the circle. A high-strength, bend-resistant composite cable for electrical energy and data transmission Claim 1 , characterized in that the number of force relief guide blocks (16) is equal to the number of movable force relief rods (4), the surface of the respective force relief guide block (16) being arcuate. A high-strength, bend-resistant composite cable for electrical energy and data transmission Claim 1 , characterized in that the surfaces of the force relief guide blocks (16) are provided with embedded sliding balls (20), both the surfaces of the first gravity guide layer (14) and the surfaces of the second gravity guide layer (15) having the surfaces of the slide balls (20) are slidably in contact. A high-strength, bend-resistant composite cable for electrical energy and data transmission Claim 1 , characterized in that the filler sand (17) is ordinary, dry, fine sand, the filler sand (17) being able to flow between the stretched force-relieving layer (2) and the wear-resistant layer (12).

Images