Highly efficient heat dissipating, highly efficient shielding, fire resistant control cable

Abstract

The application discloses a high-efficiency heat-dissipation high-efficiency shielding fireproof control cable, which comprises an outer sheath, an armored layer, a flame-retardant wrapping layer, an aluminum foil wrapping layer, an outer surrounding layer, an inner surrounding layer and an inner protective layer, the inner protective layer is internally provided with a filling rope and a plurality of cable cores, and the cable core comprises an insulating layer, a fireproof layer and a conductor. The control cable has the fireproof layer, the plurality of cable cores are externally provided with the flame-retardant wrapping layer, and thus, the control cable has good flame-retardant effect. The plurality of cable cores are coated with the inner surrounding layer, the outer surrounding layer and the aluminum foil wrapping layer, and thus, the control cable has good shielding effect. Air can be introduced through two ventilation pipes at one end of the control cable, and air can be discharged through two ventilation pipes at the other end of the control cable, so that the heat-dissipation air flow passes through the inner layer ventilation channel and the outer layer ventilation channel in the cable to realize air cooling and heat dissipation. Whether the cable works normally can be judged by checking whether the second filter screen is rusty, and the checking is convenient, which is beneficial to the maintenance work of the cable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cables, and more particularly to an efficient heat dissipation, efficient shielding and fire-resistant control cable. BACKGROUND

[0002] The main functions of control cables include transmitting control signals, measuring signals, and performing remote communication and monitoring. Through control cables, various instructions and information can be transmitted between different devices, systems or areas, realizing remote control and monitoring. Control cables are widely used in the fields of power, transportation, energy and transportation departments, water conservancy, industry, modern high-rise buildings, etc.

[0003] The existing control cable has poor flame retardant performance and is easy to burn in the case of fire, and the fire will spread rapidly, causing signal interruption, equipment damage, and even more serious fire accidents. Some control cables are easily disturbed by external electromagnetic waves in complex electromagnetic environments, resulting in a decline in signal transmission quality and affecting the accuracy and reliability of the signal. When the cable is running under high load, a large amount of heat is easily generated inside the cable, causing the temperature to rise. Traditional control cables often lack effective heat dissipation structures and cannot dissipate heat in time, causing the cable temperature to continue to rise, affecting the performance and life of the cable. In addition, the traditional control cable is inconvenient to maintain and cannot accurately detect the running state inside the cable. SUMMARY

[0004] The present application aims to overcome the defects of the prior art and provide an efficient heat dissipation, efficient shielding and fire-resistant control cable.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical solution: a control cable, from the outside to the inside, includes an outer sheath, an armored layer, a flame-retardant wrapping layer, an aluminum foil wrapping layer, an outer surrounding layer, an inner surrounding layer and an inner protective layer, the inner protective layer has a filling rope and a plurality of cable cores, the cable core from the outside to the inside includes an insulating layer, a fire-resistant layer and a conductor.

[0006] Further, the inner protective layer comprises side protruding block parts, both sides of the side protruding block parts are provided with first insertion slots and second insertion slots; the inner surrounding layer comprises a first copper plate and four first strip-shaped rubber blocks fixedly connected with the first copper plate, the first copper plate is provided with a first strip-shaped opening, both sides of the first strip-shaped opening are inserted into two first insertion slots respectively, four outward protruding protruding parts are formed at the first copper plate, inner sides of the protruding parts form accommodating grooves for accommodating the first strip-shaped rubber blocks; the outer surrounding layer comprises a second copper plate and four second strip-shaped rubber blocks with T-shaped cross sections, the second copper plate is provided with a second strip-shaped opening, both sides of the second strip-shaped opening are inserted into two second insertion slots respectively, and the four second strip-shaped rubber blocks are located at outer sides of the second copper plate; an inner layer ventilation channel is formed between the inner surrounding layer and the outer surrounding layer, and an outer layer ventilation channel is formed between the outer surrounding layer and the aluminum foil wrapping layer.

[0007] Further, the four first strip-shaped rubber blocks are annularly and equidistantly distributed, and the four second strip-shaped rubber blocks are annularly and equidistantly distributed.

[0008] Further, the first strip-shaped rubber blocks are fixedly connected with the accommodating grooves through adhesive glue, the first strip-shaped rubber blocks are provided with abutting arc surfaces abutting against outer sides of the inner protective layer; four mounting plates with straight line-shaped cross sections are formed at the second copper plate, one second strip-shaped rubber block is fixedly connected with each mounting plate through adhesive glue; the cross section of the protruding part comprises two arc lines and a straight line connecting the two arc lines, and inner sides of each mounting plate abut against one protruding part.

[0009] Therefore, the first strip-shaped rubber blocks can form better abutting cooperation with the inner protective layer. In addition, the first strip-shaped rubber blocks face one second strip-shaped rubber block, so that support is formed between the two, thereby making the withstand voltage performance of the control cable better.

[0010] Further, in the cross section of the first copper plate, the part connecting the two adjacent protruding parts is arc-shaped.

[0011] Further, in the cross section of the second copper plate, the part connecting the two adjacent mounting plates is arc-shaped.

[0012] Further, the control cable is provided with a filter part, a ventilation part, a cable joint, a first fixing ring and a second fixing ring at both ends of the control cable; the cable joint is connected with the end of the control cable; the first fixing ring is fixedly connected with the outer sheath and surrounds the outer sheath, and the second fixing ring is fixedly connected with the inner protective layer and surrounds the inner protective layer; the filter part comprises two filter units capable of being spliced with each other, the filter unit comprises an inner arc panel, a first end rod, a second end rod and a pipe connected with the inner arc panel, the first end rod comprises two first connecting rods connected with one end of the inner arc panel and a first arc rod connecting the two first connecting rods, the second end rod comprises two second connecting rods connected with the other end of the inner arc panel and a second arc rod connecting the two second connecting rods, and a first filter screen is arranged between the first end rod and the inner arc panel; a mounting ring capable of being turned over in the pipe is arranged at the pipe, and a second filter screen is arranged at the mounting ring; the ventilation part comprises two ventilation units capable of being spliced with each other, the ventilation unit comprises an outer arc panel, a first semicircular ring connected with one end of the outer arc panel, a second semicircular ring connected with the other end of the outer arc panel, a ventilation pipe connected with the outer arc panel, a connecting part capable of being fixedly arranged at the ventilation pipe and two strip-shaped convex edges fixedly connected with the outer arc panel, the ventilation pipe is capable of being inserted into the pipe, the first fixing ring and the second fixing ring are located in the ventilation part, the ventilation pipe is provided with a first external thread, and the connecting part comprises a connecting flange, a fixing pipe connected with the connecting flange and two L-shaped limiting rods fixedly connected with the connecting flange, the fixing pipe is provided with a first internal thread matched with the first external thread, and the end of the limiting rod is capable of abutting against the mounting ring to limit the turning over of the mounting ring.

[0013] Thus, air inlet is realized through the two ventilation pipes at one end of the control cable, air outlet is realized through the two ventilation pipes at the other end of the control cable, and the heat dissipation airflow passes through the inner layer ventilation channel and the outer layer ventilation channel in the cable to realize air cooling heat dissipation.

[0014] Further, the first filter screen is provided with a rust-proof coating, and the second filter screen is not provided with a rust-proof coating.

[0015] Thus, the first filter screen can be used for a long time without maintenance, but whether the second filter screen is rusted can be used to judge whether the system is working normally.

[0016] Further, the rotation axis of the mounting ring is parallel to the axis of the inner arc panel.

[0017] Due to the limiting of the two L-shaped limiting rods, the mounting ring cannot be turned over when the connecting part is installed, and the mounting ring can be turned over after the connecting part is removed, so that the second filter screen can be conveniently viewed.

[0018] Further, the strip-shaped convex edges are provided with mounting through holes, and the two ventilation units are fixedly connected by bolts and nuts.

[0019] Thus, the two ventilation units are fixedly connected.

[0020] Further, the first and second fixing rings are rubber rings, the first fixing ring is fixedly bonded to the outer sheath, and the second fixing ring is fixedly bonded to the inner sheath.

[0021] Further, the circumferential surface of the first fixing ring abuts against the inner side of the outer arc panel, and the end surface of the first fixing ring abuts against the first semicircular ring; the circumferential surface of the second fixing ring abuts against the inner side of the outer arc panel, and the end surface of the second fixing ring abuts against the second semicircular ring.

[0022] Thus, the ventilation part can be well sealed between the first and second fixing rings.

[0023] In some embodiments, the two ventilation units are also coated with sealant.

[0024] That is, the first and second semicircular rings and the two strip-shaped convex edges are coated with sealant, so as to increase the sealing between the two ventilation units.

[0025] Further, the inner arc panel is provided with a first through hole in communication with the cannula.

[0026] Further, the outer arc panel is provided with a second through hole in communication with the ventilation pipe.

[0027] Further, a plurality of radial rods are connected between the second arc-shaped rod and the inner arc panel; the first and second connecting rods of one of the two filter units are provided with positioning columns, and the first and second connecting rods of the other filter unit are provided with positioning holes.

[0028] Thus, the radial structure of the filter unit is stronger, and the two filter units are conveniently spliced.

[0029] Further, the control cable is provided with an end protection unit at each end, the first semicircular ring is fixedly connected with a mounting arc panel, the two mounting arc panels can be spliced into a mounting pipe, and the mounting pipe is provided with a second external thread; the end protection unit comprises a mounting ring, a rubber sleeve connected with the mounting ring, and a rubber ring connected with the rubber sleeve, the mounting ring is provided with a second internal thread matched with the second external thread, and the rubber ring surrounds and abuts against the cable joint.

[0030] Thus, the rubber ring can tightly hold the cable joint, so that the rubber ring abuts against and seals the surface of the cable joint.

[0031] Further, the end face of the mounting ring is also fixed with a sealing ring. Thus, the sealing between the mounting ring and the ventilation part is further increased.

[0032] Further, the inner diameter of the first arc-shaped rod, the inner diameter of the second arc-shaped rod and the outer diameter of the inner protective layer are equal.

[0033] Further, the inner diameter of the first half ring is equal to the outer diameter of the outer protective sleeve, and the inner diameter of the second half ring is equal to the outer diameter of the inner protective layer.

[0034] Further, the outer diameter of the cannula is equal to the inner diameter of the ventilation pipe; and the second half ring is located between the second fixing ring and the cable joint.

[0035] That is, an annular groove is formed between the cable joint and the second fixing ring, and the second half ring is embedded in the annular groove.

[0036] Further, the armor layer is a steel belt armor layer, the flame-retardant wrapping layer is a mica tape wrapping layer, the outer protective sleeve is a polyvinyl chloride outer protective sleeve, and the fire-resistant layer is made of low-smoke halogen-free material.

[0037] Advantages:

[0038] 1. The control cable has a fire-resistant layer, and a plurality of cable cores are further provided with a flame-retardant wrapping layer, thereby having good flame-retardant effect.

[0039] 2. The control cable has a plurality of cable cores covered with an inner surrounding layer, an outer surrounding layer and an aluminum foil wrapping layer, thereby the three-layer structure all play a shielding role, thereby having good shielding effect.

[0040] 3. The control cable can realize air inlet through the two ventilation pipes at one end of the control cable, and air outlet through the two ventilation pipes at the other end of the control cable, thereby the heat dissipation air flow realizes air cooling heat dissipation through the inner and outer ventilation channels in the cable.

[0041] 4. The control cable can determine whether the cable is working normally by checking whether the second filter screen is rusty, and only needs to unscrew the connecting part when checking, without disassembling the two ventilation units, thereby the checking of the cable end part is more convenient, which is conducive to the maintenance work of the cable.

[0042] 5. The control cable has an end protection unit, thereby the end protection unit forms protection and sealing between the ventilation part and the cable joint, prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 is a schematic view of a control cable;

[0044] Figure 1A is an enlarged view of the 1A area;

[0045] Figure 2 Detail of control cable cross section;

[0046] Figure 2A Detail of area 2A;

[0047] Figure 3 Detail of control cable end;

[0048] Figure 3A Detail of area 3A;

[0049] Figure 3B Detail of area 3B;

[0050] Figure 4 Detail of control cable end without end protection unit;

[0051] Figure 4A Detail of area 4A;

[0052] Figure 5 Detail of control cable end with parts separated;

[0053] Figure 5A Detail of area 5A;

[0054] Figure 5B Detail of area 5B;

[0055] Figure 5C Detail of area 5C;

[0056] Figure 5D Detail of area 5D;

[0057] Figure 6 Detail of control cable end with second screen;

[0058] Figure 6A Detail of area 6A.

[0059] Explanation of reference numerals: outer sheath 1; armor layer 2; flame-retardant wrapping layer 3; aluminum foil wrapping layer 4; outer surrounding layer 5; second copper plate 5.1; second strip-shaped rubber block 5.2; mounting plate 5.3; inner surrounding layer 6; first copper plate 6.1; first strip-shaped rubber block 6.2; protruding portion 6.3; inner sheath 7; side protruding block portion 7.1; first insertion slot 7.2; second insertion slot 7.3; filling rope 8; cable core 9; insulation layer 9.1; fire-resistant layer 9.2; conductor 9.3; inner arc surface plate 10.1; first connecting rod 10.2; first arc-shaped rod 10.3; second connecting rod 10.4; second arc-shaped rod 10.5; insertion pipe 10.6; first filter screen 10.7; mounting ring 10.8; second filter screen 10.9; radial rod 10.10; positioning column 10.11; positioning hole 10.12; outer arc surface plate 11.1; first semicircular ring 11.2; second semicircular ring 11.3; ventilation pipe 11.4; first external thread 11.4.1; strip-shaped protruding edge 11.5; mounting through hole 11.5.1; mounting arc surface plate 11.6; second external thread 11.6.1; connecting portion 12; connecting flange 12.1; fixing pipe 12.2; limiting rod 12.3; cable joint 13; first fixing ring 14; second fixing ring 15; end protection unit 16; mounting circular ring 16.1; rubber sleeve 16.2; rubber circular ring 16.3. DETAILED DESCRIPTION

[0060] Embodiments of the present application are described in detail below with reference to examples illustrated in the attached drawings, in which like or similar elements are denoted by the same or similar reference numerals, and which lead to the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0061] As shown in the figure, an efficient heat dissipation and efficient shielding fireproof control cable comprises, from outside to inside, an outer sheath 1, an armored layer 2, a flame-retardant wrapping layer 3, an aluminum foil wrapping layer 4, an outer surrounding layer 5, an inner surrounding layer 6, and an inner protective layer 7, the inner protective layer 7 has a filling rope 8 and a plurality of cable cores 9 inside, the cable cores 9 comprise, from outside to inside, an insulating layer 9.1, a fireproof layer 9.2, and a conductor 9.3. The armored layer 2 is a steel tape armored layer 2, the flame-retardant wrapping layer 3 is a mica tape wrapping layer, the outer sheath 1 is a polyvinyl chloride outer sheath, and the fireproof layer 9.2 is made of low-smoke halogen-free material. The inner protective layer 7 comprises a side protruding block part 7.1, the side protruding block part 7.1 has a first insertion slot 7.2 and a second insertion slot 7.3 on both sides; the inner surrounding layer 6 comprises a first copper plate 6.1 and four first strip-shaped rubber blocks 6.2 fixedly connected with the first copper plate 6.1, the first copper plate 6.1 has a first strip-shaped opening, both sides of the first strip-shaped opening are inserted into two first insertion slots 7.2 respectively, four protruding parts 6.3 protruding outward are formed at the first copper plate 6.1, and a containing groove for containing the first strip-shaped rubber block 6.2 is formed on the inner side of the protruding part 6.3; the outer surrounding layer 5 comprises a second copper plate 5.1 and four second strip-shaped rubber blocks 5.2 in T-shaped cross section, the second copper plate 5.1 has a second strip-shaped opening, both sides of the second strip-shaped opening are inserted into two second insertion slots 7.3 respectively, and the four second strip-shaped rubber blocks 5.2 are located on the outer side of the second copper plate 5.1; an inner layer ventilation channel is formed between the inner surrounding layer 6 and the outer surrounding layer 5, and an outer layer ventilation channel is formed between the outer surrounding layer 5 and the aluminum foil wrapping layer 4. The four first strip-shaped rubber blocks 6.2 are distributed in a ring shape at equal intervals, and the four second strip-shaped rubber blocks 5.2 are distributed in a ring shape at equal intervals. The first strip-shaped rubber block 6.2 is fixedly connected with the containing groove through adhesive, and the first strip-shaped rubber block 6.2 has an abutting arc surface abutting against the outer side of the inner protective layer 7; four mounting plates 5.3 in straight line cross section are formed at the second copper plate 5.1, and one second strip-shaped rubber block 5.2 is fixedly connected to each mounting plate 5.3 through adhesive; the cross section of the protruding part 6.3 comprises two arc lines and a straight line connecting the two arc lines, and the inner side of each mounting plate 5.3 abuts against one protruding part 6.3.

[0062] The control cable is provided with a filter part, a ventilation part, a cable joint 13, a first fixing ring 14 and a second fixing ring 15 at both ends; the cable joint is connected with the end of the control cable; the first fixing ring is fixedly connected with the outer sheath 1 and surrounds the outer sheath 1, and the second fixing ring is fixedly connected with the inner protective layer 7 and surrounds the inner protective layer 7; the filter part comprises two filter units capable of being spliced with each other, the filter unit comprises an inner arc panel 10.1, a first end part rod, a second end part rod and a cannula 10.6 connected with the inner arc panel 10.1, the first end part rod comprises two first connecting rods 10.2 connected with one end of the inner arc panel 10.1 and a first arc rod 10.3 connecting the two first connecting rods 10.2, the second end part rod comprises two second connecting rods 10.4 connected with the other end of the inner arc panel 10.1 and a second arc rod 10.5 connecting the two second connecting rods 10.4, a first filter screen 10.7 is arranged between the first end part rod and the inner arc panel 10.1, a mounting ring 10.8 capable of being turned over in the cannula is arranged at the cannula 10.6, and a second filter screen 10.9 is arranged at the mounting ring; the ventilation part comprises two ventilation units capable of being spliced with each other, the ventilation unit comprises an outer arc panel 11.1, a first semicircular ring 11.2 connected with one end of the outer arc panel 11.1, a second semicircular ring 11.3 connected with the other end of the outer arc panel 11.1, a ventilation pipe 11.4 connected with the outer arc panel 11.1, a connecting part 12 capable of being fixedly arranged at the ventilation pipe 11.4 and two strip-shaped convex edges 11.5 fixedly connected with the outer arc panel 11.1, the ventilation pipe 11.4 can be inserted into the cannula 10.6, the first fixing ring and the second fixing ring are both located in the ventilation part, the ventilation pipe 11.4 is provided with a first outer thread 11.4.1, the connecting part 12 comprises a connecting flange 12.1, a fixing pipe 12.2 connected with the connecting flange and two L-shaped limiting rods 12.3 fixedly connected with the connecting flange, the fixing pipe 12.2 is provided with a first inner thread 12.2.1 matched with the first outer thread, and the end of the limiting rod 12.3 can abut against the mounting ring to limit the turning over of the mounting ring; the strip-shaped convex edge 11.5 is provided with a mounting through hole 11.5.1, and the two ventilation units are fixedly connected through bolts and nuts; the first fixing ring 14 and the second fixing ring 15 are both rubber rings, the first fixing ring is adhesively fixed with the outer sheath 1, and the second fixing ring is adhesively fixed with the inner protective layer 7; the circumferential surface of the first fixing ring abuts against the inner side of the outer arc panel 11.1, and the end surface of the first fixing ring abuts against the first semicircular ring 11.2; the circumferential surface of the second fixing ring abuts against the inner side of the outer arc panel 11.1, and the end surface of the second fixing ring abuts against the second semicircular ring 11.3.A plurality of radial rods 10.10 are connected between the second arc-shaped rod 10.5 and the inner arc panel 10.1; the first connecting rod 10.2 and the second connecting rod 10.4 of one of the two filter units are each provided with a positioning column 10.11, and the first connecting rod 10.2 and the second connecting rod 10.4 of the other filter unit are each provided with a positioning hole 10.12. Both ends of the control cable are provided with an end protection unit 16, the first semicircular ring 11.2 is fixedly connected with a mounting arc panel 11.6, two mounting arc panels can be spliced into a mounting pipe, and the mounting pipe is provided with a second external thread 11.6.1; the end protection unit 16 comprises a mounting ring 16.1, a rubber sleeve 16.2 connected with the mounting ring, and a rubber ring 16.3 connected with the rubber sleeve, the mounting ring is provided with a second internal thread matched with the second external thread, and the rubber ring surrounds and abuts against the cable joint. The inner diameter of the first arc-shaped rod 10.3, the inner diameter of the second arc-shaped rod 10.5 and the outer diameter of the inner protective layer 7 are equal; the inner diameter of the first semicircular ring 11.2 is equal to the outer diameter of the outer protective sheath 1, and the inner diameter of the second semicircular ring 11.3 is equal to the outer diameter of the inner protective layer 7; the outer diameter of the cannula 10.6 is equal to the inner diameter of the ventilation pipe 11.4; and the second semicircular ring 11.3 is located between the second fixing ring 15 and the cable joint 13.

[0063] Working principle: As shown in the figure, the control cable of the application has a fire-resistant layer in the cable core, and a plurality of cable cores are further provided with a flame-retardant wrapping layer, thereby having good flame-retardant effect, and the plurality of cable cores are covered with an inner surrounding layer, an outer surrounding layer and an aluminum foil wrapping layer, thereby the three-layer structure plays a shielding role, thereby having good shielding effect, and the heat dissipation structure forms an inner layer ventilation channel and an outer layer ventilation channel, and the three-layer structure itself has good heat conduction effect, thereby facilitating the heat generated by the cable core to be transferred to the inner layer ventilation channel and the outer layer ventilation channel, thereby being taken away by the heat dissipation airflow. And the setting of the side protruding block part makes the first copper plate and the second copper plate better limit the first and second copper plates when surrounding and installing.

[0064] In the structure of installing the end of the control cable, as shown, the excess side protruding block part of the outer sheath, the armor layer, the flame-retardant wrapping layer, the aluminum foil wrapping layer, the outer surrounding layer, the inner surrounding layer and the inner protective layer of the cable end is cut off, and the side protruding block part of the outer sheath, the armor layer, the flame-retardant wrapping layer, the aluminum foil wrapping layer, the outer surrounding layer, the inner surrounding layer and the inner protective layer of the cable end are flush. The first fixing ring and the second fixing ring are fixedly installed by the adhesive glue; then the cable joint is installed; then the two filter units are spliced and installed; then the two ventilation units are installed and fixed by the bolt and nut. Then the end protection unit is installed, so that the end protection unit forms protection and sealing between the ventilation part and the cable joint. In use, the two ends of the control cable, one end of which is connected to the air inlet pipe, the other end of which is connected to the air outlet pipe, so as to form a heat dissipation airflow, which passes through the inner layer ventilation channel and the outer layer ventilation channel, so as to realize heat dissipation of the cable. In use, the air inlet pipe uses dry cold air. The first filter screen and the second filter screen of the filter part can prevent foreign matter. After a period of use, the connecting part can be unscrewed, and the mounting ring is rotated to view the inner side and the outer side of the second filter screen, one side to check whether there is dust and other foreign matter, and the other side to check whether the second filter screen is rusty. In theory, the air inlet pipe uses dry cold air, and there will be no dust and rust on the second filter screen. If there is, it means that the air inlet equipment of the air inlet pipe or the cable itself needs to be maintained. And when checking, only the connecting part needs to be unscrewed, without the need to disassemble the two ventilation units, so that the cable end is more convenient to check, which is conducive to the maintenance of the cable.

[0065] Although the present application is illustrated and described with reference to preferred embodiments, it is understood that various changes and modifications can be made to the present application without departing from the scope of the claims of the present application.

Claims

1. A high efficiency heat dissipating, high efficiency shielded, fire resistant control cable characterized by, From outside to inside, the control cable comprises an outer sheath, an armored layer, a flame-retardant wrapping layer, an aluminum foil wrapping layer, an outer surrounding layer, an inner surrounding layer and an inner protective layer, the inner protective layer has a filling rope and a plurality of cable cores inside, the cable cores comprise an insulation layer, a fire-resistant layer and a conductor from outside to inside; The inner protective layer comprises side protruding block parts, both sides of the side protruding block parts have first insertion slots and second insertion slots; the inner surrounding layer comprises a first copper plate and four first strip-shaped rubber blocks fixedly connected with the first copper plate, the first copper plate has a first strip-shaped opening, both sides of the first strip-shaped opening are inserted into two first insertion slots respectively, four protruding parts protruding outward are formed at the first copper plate, inner sides of the protruding parts form accommodating grooves for accommodating the first strip-shaped rubber blocks; the outer surrounding layer comprises a second copper plate and four second strip-shaped rubber blocks with a T-shaped cross section, the second copper plate has a second strip-shaped opening, both sides of the second strip-shaped opening are inserted into two second insertion slots respectively, the four second strip-shaped rubber blocks are located on the outer side of the second copper plate; an inner layer ventilation channel is formed between the inner surrounding layer and the outer surrounding layer, an outer layer ventilation channel is formed between the outer surrounding layer and the aluminum foil wrapping layer; Both ends of the control cable are provided with a filtering part, a ventilation part, a cable joint, a first fixing ring and a second fixing ring; the cable joint is connected with the end of the control cable; the first fixing ring is fixedly connected with the outer sheath and surrounds the outer sheath, the second fixing ring is fixedly connected with the inner protective layer and surrounds the inner protective layer; the filtering part comprises two filter units capable of being spliced with each other, the filter unit comprises an inner arc panel, a first end part rod, a second end part rod and a insertion pipe connected with the inner arc panel, the first end part rod comprises two first connecting rods connected with one end of the inner arc panel and a first arc rod connecting the two first connecting rods, the second end part rod comprises two second connecting rods connected with the other end of the inner arc panel and a second arc rod connecting the two second connecting rods, a first filter screen is installed between the first end part rod and the inner arc panel, an installation ring capable of being turned over in the insertion pipe is installed at the insertion pipe, a second filter screen is installed at the installation ring; the ventilation part comprises two ventilation units capable of being spliced with each other, the ventilation unit comprises an outer arc panel, a first semicircular ring connected with one end of the outer arc panel, a second semicircular ring connected with the other end of the outer arc panel, a ventilation pipe connected with the outer arc panel, a connecting part capable of being fixedly installed at the ventilation pipe and two strip-shaped protruding edges fixedly connected with the outer arc panel, the ventilation pipe can be inserted into the insertion pipe, the first fixing ring and the second fixing ring are located in the ventilation part, the ventilation pipe has a first outer thread, the connecting part comprises a connecting flange, a fixing pipe connected with the connecting flange and two L-shaped limiting rods fixedly connected with the connecting flange, the fixing pipe has a first inner thread matched with the first outer thread, the end of the limiting rod can abut against the installation ring to limit the turning over of the installation ring.

2. The high efficiency heat dissipating, high efficiency shielded, fire resistant control cable of claim 1, wherein, The four first strip-shaped rubber blocks are annularly and equally spaced, and the four second strip-shaped rubber blocks are annularly and equally spaced.

3. The high performance, high shielding, fire resistant control cable of claim 2, wherein, The first strip-shaped rubber block is fixedly connected with the accommodating groove through adhesive glue, and the first strip-shaped rubber block has an abutting arc surface abutting against the outer side of the inner protective layer; four mounting plates in straight line shape in cross section are formed at the second copper plate, and one second strip-shaped rubber block is fixedly connected with each mounting plate through adhesive glue; the cross section of the protruding part comprises two arc lines and a straight line connecting the two arc lines, and the inner side of each mounting plate abuts against one protruding part.

4. The high performance, high shielding, fire resistant control cable of claim 1, wherein, The strip-shaped convex edge is provided with a mounting through hole, and two ventilation units are fixedly connected through bolts and nuts; the first and second fixing rings are rubber rings, the first fixing ring is fixedly connected with the outer protective sleeve through adhesive, and the second fixing ring is fixedly connected with the inner protective layer through adhesive; the circumferential surface of the first fixing ring abuts against the inner side of the outer arc panel, and the end surface of the first fixing ring abuts against the first semicircular ring; the circumferential surface of the second fixing ring abuts against the inner side of the outer arc panel, and the end surface of the second fixing ring abuts against the second semicircular ring.

5. The high performance, high shielding, fire resistant control cable of claim 1, wherein, A plurality of radial rods are connected between the second arc-shaped rod and the inner arc panel; the first connecting rod and the second connecting rod of one of the two filter units are provided with positioning columns, and the first connecting rod and the second connecting rod of the other filter unit are provided with positioning holes.

6. The high performance, high shielding, fire resistant control cable of claim 1, wherein, Both ends of the control cable are provided with end protection units, the first semicircular ring is fixedly connected with mounting arc panels, and the two mounting arc panels can be spliced into a mounting pipe, and the mounting pipe is provided with a second external thread; the end protection unit comprises a mounting ring, a rubber sleeve connected with the mounting ring, and a rubber ring connected with the rubber sleeve, the mounting ring is provided with a second internal thread matched with the second external thread, and the rubber ring surrounds and abuts against the cable joint.

7. The high performance, high shielding, fire resistant control cable of claim 1, wherein, The inner diameter of the first arc-shaped rod, the inner diameter of the second arc-shaped rod and the outer diameter of the inner protective layer are equal; the inner diameter of the first semicircular ring is equal to the outer diameter of the outer protective sleeve, and the inner diameter of the second semicircular ring is equal to the outer diameter of the inner protective layer; the outer diameter of the cannula is equal to the inner diameter of the ventilation pipe; the second semicircular ring is located between the second fixing ring and the cable joint.

8. The high performance, high shielding, fire resistant control cable of claim 1, wherein, The armor layer is a steel belt armor layer, the flame-retardant wrapping layer is a mica tape wrapping layer, the outer protective sleeve is a polyvinyl chloride outer protective sleeve, and the fire-resistant layer is made of low-smoke halogen-free material.

Images