High-efficiency heat dissipation and high-efficiency shielding fireproof control cable

Abstract

The invention discloses an efficient heat dissipation and efficient shielding fireproof control cable which comprises an outer sheath, an armor layer, a flame retardant wrapping layer, an aluminum foil wrapping layer, an outer surrounding layer, an inner surrounding layer and an inner protection layer, filling ropes and a plurality of cable cores are arranged in the inner protection layer, and each cable core comprises an insulating layer, a fireproof layer and a conductor. According to the control cable, the cable core is provided with the fireproof layer, and the flame-retardant wrapping layer is arranged outside the plurality of cable cores, so that the control cable has a good flame-retardant effect. And the plurality of cable cores are coated with the inner surrounding layer, the outer surrounding layer and the aluminum foil wrapping layer, so that the cable has a relatively good shielding effect. Air inlet can be achieved through the two ventilation pipes at one end of the control cable, air outlet can be achieved through the two ventilation pipes at the other end of the control cable, and therefore heat dissipation airflow passes through the inner layer ventilation channel and the outer layer ventilation channel in the cable to achieve air cooling heat dissipation. Whether the cable works normally or not can be judged by checking whether the second filter screen is rusted or not, operation is convenient during checking, and maintenance work of the cable is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of cable technology, and more specifically to a highly efficient heat dissipation and highly efficient shielding fire-resistant control cable. Background Art

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

[0003] Existing control cables have poor flame retardancy and are easy to burn in the event of a fire. The fire will spread rapidly, causing signal interruption, equipment damage, and even possibly causing a larger fire accident. Some control cables are easily interfered by external electromagnetic waves in complex electromagnetic environments, resulting in a decrease in signal transmission quality and affecting the accuracy and reliability of the signal. When the cable is running at 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, traditional control cables are inconvenient during maintenance and cannot accurately detect the operating status inside the cable. Summary of the invention

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

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

[0006] Further, the inner protective layer includes a side protrusion portion, and both sides of the side protrusion portion have a first slot and a second slot; the inner surrounding layer includes a first copper plate and four first strip rubber blocks fixedly connected to the first copper plate, the first copper plate has a first strip opening, and the two sides of the first strip opening are respectively inserted into the two first slots, and four protrusions protruding outward are formed at the first copper plate, and the inner side of the protrusion forms a receiving groove for accommodating the first strip rubber block; the outer surrounding layer includes a second copper plate and four second strip rubber blocks with a T-shaped cross-section, the second copper plate has a second strip opening, and the two sides of the second strip opening are respectively inserted into the two second slots, and the four second strip rubber blocks are located on the outside 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] Furthermore, the four first strip-shaped rubber blocks are distributed in a ring shape with equal intervals, and the four second strip-shaped rubber blocks are distributed in a ring shape with equal intervals.

[0008] Furthermore, the first strip rubber block is fixedly connected to the accommodating groove by adhesive, and the first strip rubber block has an abutting arc surface abutting against the outer side of the inner protective layer; four mounting plates with straight cross-sections are formed at the second copper plate, and each mounting plate is fixedly connected with a second strip rubber block by adhesive; the cross-section of the protrusion includes two arcs and a straight line connecting the two arcs, and the inner side of each mounting plate abuts against one of the protrusions.

[0009] Therefore, the first strip rubber block can form a better abutment match with the inner protective layer. In addition, the first strip rubber block faces a second strip rubber block, so that a support is formed between the two, thereby making the pressure resistance performance of the control cable better.

[0010] Furthermore, in the cross section of the first copper plate, a portion connecting two adjacent protrusions is in an arc shape.

[0011] Furthermore, in the cross section of the second copper plate, the portion connecting two adjacent mounting plates is in an arc shape.

[0012] Furthermore, both ends of the control cable are equipped with a filter part, a ventilation part, a cable connector, a first fixing ring and a second fixing ring; the cable connector is connected to the end of the control cable; the first fixing ring is fixedly connected to the outer sheath and surrounds the outer sheath, and the second fixing ring is fixedly connected to the inner protective layer and surrounds the inner protective layer; the filter part includes two filter units that can be spliced ​​with each other, and the filter unit includes an inner arc panel, a first end rod, a second end rod and a plug connected to the inner arc panel, the first end rod includes two first connecting rods connected to one end of the inner arc panel and a first arc rod connecting the two first connecting rods, the second end rod includes two second connecting rods connected to 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 rod and the inner arc panel, and a filter that can be installed at the plug A mounting ring that flips inside the insert tube, a second filter screen is installed at the mounting ring; the ventilation part includes two ventilation units that can be spliced ​​with each other, the ventilation unit includes an outer arc panel, a first semicircular ring connected to one end of the outer arc panel, a second semicircular ring connected to the other end of the outer arc panel, a ventilation pipe connected to the outer arc panel, a connecting part that can be fixedly installed at the ventilation pipe, and two strip-shaped convex edges fixedly connected to the outer arc panel, the ventilation pipe can be inserted by the insert tube, the first fixing ring and the second fixing ring are both located in the ventilation part, the ventilation pipe has a first external thread, the connecting part includes a connecting flange, a fixing pipe connected to the connecting flange, and two L-shaped limiting rods fixedly connected to the connecting flange, the fixing pipe has a first internal thread that cooperates with the first external thread, and the end of the limiting rod can abut the mounting ring to limit the flipping of the mounting ring.

[0013] Therefore, air intake can be achieved through the two ventilation pipes at one end of the control cable, and air outlet can be achieved from the two ventilation pipes at the other end of the control cable, so that the heat dissipation airflow passes through the inner ventilation channel and the outer ventilation channel in the cable to achieve air cooling and heat dissipation.

[0014] Furthermore, the first filter screen has an anti-rust coating; and the second filter screen does not have an anti-rust coating.

[0015] Thus, the first filter can be used for a long time without maintenance, but whether the system is working properly can be judged by whether the second filter is rusted.

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

[0017] Due to the limitation of the two L-shaped limiting rods, the installation ring cannot be turned over when the connecting part is installed. After the connecting part is removed, the installation ring can be turned over because there is no limitation of the limiting rods, so it is convenient to check the second filter.

[0018] Furthermore, the strip-shaped flange is provided with a mounting through hole, and the two ventilation units are fixedly connected by bolts and nuts.

[0019] This facilitates the fixed connection of the two ventilation units.

[0020] Furthermore, the first fixing ring and the second fixing ring are both rubber rings, the first fixing ring is bonded and fixed to the outer sheath, and the second fixing ring is bonded and fixed to the inner protective layer.

[0021] Furthermore, 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] Therefore, the ventilation portion can form a good seal with the first fixing ring and the second fixing ring.

[0023] In some embodiments, sealant is applied between the two ventilation units.

[0024] That is, sealant is coated on the first semicircular ring, the second semicircular ring and the two strip-shaped convex edges, thereby increasing the sealing performance between the two ventilation units.

[0025] Furthermore, the inner arc panel has a first through hole connected to the insertion tube.

[0026] Furthermore, the outer arc panel has a second through hole connected to the ventilation pipe.

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

[0028] Thereby, the radial structure of the filter unit is made stronger and the splicing of two filter units is facilitated.

[0029] Furthermore, end protection units are installed at both ends of the control cable, and a mounting arc panel is fixedly connected to the first semicircular ring. The two mounting arc panels can be spliced ​​into a mounting tube, and the mounting tube has a second external thread; the end protection unit includes a mounting ring, a rubber sleeve connected to the mounting ring, and a rubber ring connected to the rubber sleeve, the mounting ring has a second internal thread that cooperates with the second external thread, and the rubber ring surrounds and abuts the cable connector.

[0030] Therefore, the rubber ring can tighten the cable connector, so that the rubber ring abuts against the surface of the cable connector to seal.

[0031] Furthermore, a sealing ring is fixed to the end surface of the mounting ring, thereby further increasing the sealing performance of the connection between the mounting ring and the ventilation part.

[0032] Furthermore, 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 semicircular ring is equal to the outer diameter of the outer sheath, and the inner diameter of the second semicircular ring is equal to the outer diameter of the inner sheath.

[0034] Furthermore, the outer diameter of the insert tube is equal to the inner diameter of the ventilation tube; and the second semicircular ring is located between the second fixing ring and the cable connector.

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

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

[0037] Beneficial effects:

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

[0039] 2. In the control cable of the present application, the plurality of cable cores are coated with an inner surrounding layer, an outer surrounding layer and an aluminum foil wrapping layer, so that the three-layer structure all plays a shielding role, thereby having a good shielding effect.

[0040] 3. The control cable of the present application can realize air intake through two ventilation pipes at one end of the control cable, and can realize air exhaust from two ventilation pipes at the other end of the control cable, so that the heat dissipation airflow passes through the inner ventilation channel and the outer ventilation channel in the cable to realize air-cooling heat dissipation.

[0041] 4. The control cable of the present application can determine whether the cable is working normally by checking whether the second filter is rusted. When checking, it is only necessary to unscrew the connection part without disassembling the two ventilation units, which makes it more convenient to check the cable end and is conducive to cable maintenance.

[0042] 5. The control cable of the present application has an end protection unit, so that the end protection unit forms protection and sealing between the ventilation part and the cable connector, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the control cable;

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

[0045] Figure 2 This is a schematic diagram of the cross section of the control cable;

[0046] Figure 2A This is an enlarged view of area 2A;

[0047] Figure 3 This is a schematic diagram of the control cable end;

[0048] Figure 3A This is an enlarged view of the 3A area;

[0049] Figure 3B This is an enlarged view of area 3B;

[0050] Figure 4 This is a schematic diagram when the end protection unit is not installed;

[0051] Figure 4A This is an enlarged view of area 4A;

[0052] Figure 5 It is a schematic diagram of the separation of components at the end of the control cable;

[0053] Figure 5A This is an enlarged view of area 5A;

[0054] Figure 5B This is an enlarged view of area 5B;

[0055] Figure 5C This is an enlarged view of the 5C area;

[0056] Figure 5D This is a magnified image of the 5D area;

[0057] Figure 6 This is a schematic diagram for checking the second filter;

[0058] Fig. 6A This is an enlarged view 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 envelope 5; second copper plate 5.1; second strip rubber block 5.2; mounting plate 5.3; inner envelope 6; first copper plate 6.1; first strip rubber block 6.2; protrusion 6.3; inner sheath 7; side protrusion 7.1; first slot 7.2; second slot 7.3; filling rope 8; cable core 9; insulating layer 9.1; fireproof layer 9.2; conductor 9.3; inner arc panel 10.1; first connecting rod 10.2; first arc rod 10.3; second connecting rod 10.4; second arc rod 10.5; intubation 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 panel 11.1; first semicircular ring 11.2; second semicircular ring 11.3; ventilation pipe 11.4; first external thread 11.4.1; strip flange 11.5; mounting through hole 11.5.1; mounting arc panel 11.6; second external thread 11.6.1; connecting part 12; connecting flange 12.1; fixing pipe 12.2; limiting rod 12.3; cable connector 13; first fixing ring 14; second fixing ring 15; end protection unit 16; mounting ring 16.1; rubber sleeve 16.2; rubber ring 16.3. DETAILED DESCRIPTION

[0060] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0061] As shown in the figure, a high-efficiency heat dissipation and high-efficiency shielded fire-resistant control cable includes, from outside to inside, an outer sheath 1, an armor 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 sheath 7. The inner sheath 7 has a filling rope 8 and a plurality of cable cores 9. The cable core 9 includes, from outside to inside, an insulating layer 9.1, a fire-resistant layer 9.2 and a conductor 9.3. The armor layer 2 is a steel tape armor 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 fire-resistant layer 9.2 is made of low-smoke halogen-free material. The inner protective layer 7 comprises a side convex block portion 7.1, and both sides of the side convex block portion 7.1 are provided with a first slot 7.2 and a second slot 7.3; the inner enclosure layer 6 comprises a first copper plate 6.1 and four first strip rubber blocks 6.2 fixedly connected to the first copper plate 6.1, the first copper plate 6.1 has a first strip opening, and both sides of the first strip opening are respectively inserted into the two first slots 7.2, and four outwardly protruding protrusions 6.3 are formed on the first copper plate 6.1, and the inner side of the protrusion 6.3 is formed for The outer envelope layer 5 includes a second copper plate 5.1 and four second rubber strip blocks 5.2 with a T-shaped cross section, the second copper plate 5.1 has a second strip opening, the two sides of the second strip opening are respectively inserted into two second slots 7.3, and the four second rubber strip blocks 5.2 are located on the outside of the second copper plate 5.1; an inner ventilation channel is formed between the inner envelope layer 6 and the outer envelope layer 5, and an outer ventilation channel is formed between the outer envelope layer 5 and the aluminum foil wrapping layer 4. The four first rubber strip blocks 6.2 are distributed in a circular shape with equal spacing, and the four second rubber strip blocks 5.2 are distributed in a circular shape with equal spacing. The first strip rubber block 6.2 is fixedly connected to the accommodating groove by adhesive, and the first strip 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 with straight cross sections are formed at the second copper plate 5.1, and each mounting plate 5.3 is fixedly connected with a second strip rubber block 5.2 by adhesive; the cross section of the protrusion 6.3 includes two arcs and a straight line connecting the two arcs, and the inner side of each mounting plate 5.3 abuts against one of the protrusions 6.3.

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

[0063] Working principle: As shown in the figure, the control cable of the present application has a fire-resistant layer in the cable core, and multiple cable cores are also provided with a flame-retardant sheath, so that it has a good flame-retardant effect. Multiple cable cores are coated with an inner surrounding layer, an outer surrounding layer and an aluminum foil sheath, so that the three-layer structure plays a shielding role, so that it has a good shielding effect, and an inner ventilation channel and an outer ventilation channel are formed between the heat dissipation structure, and the three-layer structure itself has a good thermal conductivity, so that the heat generated by the cable core is transferred to the inner ventilation channel and the outer ventilation channel, so that it is taken away by the heat dissipation airflow for heat dissipation. And the setting of the side convex block makes it better to limit the first and second copper plates when the first copper plate and the second copper plate are surrounded and installed.

[0064] When installing the structure of the control cable end, as shown in the figure, the outer sheath, armor layer, flame retardant wrapping layer, aluminum foil wrapping layer, outer surrounding layer, inner surrounding layer and redundant side protrusions at the inner sheath of the cable end are cut off, and the outer sheath, armor layer, flame retardant wrapping layer, aluminum foil wrapping layer, outer surrounding layer, inner surrounding layer and side protrusions of the inner sheath of the cable end are made flush. The first fixing ring and the second fixing ring are fixedly installed by adhesive; then the cable joint is installed; then the two filter units are spliced ​​and installed; then the two ventilation units are installed and fixed with bolts and nuts. 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. When in use, the two ends of the control cable, the two connecting parts of one end are connected to the air inlet pipe, and the two connecting parts of the other end are connected to the air outlet pipe, so as to form a heat dissipation airflow, and the heat dissipation airflow passes through the inner ventilation channel and the outer ventilation channel, so as to achieve heat dissipation of the cable. When in use, the air inlet pipe uses dry cold air. The first filter screen and the second filter screen of the filter unit can serve the purpose of preventing foreign matter. After using it for a period of time, you can unscrew the connection and turn the mounting ring to check the inside and outside of the second filter. On the one hand, check whether there is dust or other foreign matter, and on the other hand, check whether the second filter is rusted. In theory, the air inlet pipe uses dry cold air, and there will be no dust or rust on the second filter. If there is, it means that the air inlet device of the air inlet pipe or the cable itself needs maintenance. When checking, you only need to unscrew the connection without disassembling the two ventilation units, which makes it more convenient to check the cable end and is conducive to cable maintenance.

[0065] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be appreciated by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A highly efficient heat dissipation and high efficiency shielding fire resistant control cable, It is characterized in that From the outside to the inside, it includes an outer sheath, an armor 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 multiple cable cores. The cable core includes an insulating layer, a fire-resistant layer and a conductor from the outside to the inside.

2. The high-efficiency heat dissipation and high-efficiency shielding fire-resistant control cable according to claim 1, It is characterized in that The inner protective layer includes a side convex block portion, and both sides of the side convex block portion are provided with a first slot and a second slot; the inner surrounding layer includes a first copper plate and four first strip rubber blocks fixedly connected to the first copper plate, the first copper plate has a first strip opening, and both sides of the first strip opening are respectively inserted into the two first slots, and four protrusions protruding outward are formed at the first copper plate, and the inner sides of the protrusions form a receiving groove for accommodating the first strip rubber blocks; the outer surrounding layer includes a second copper plate and four second strip rubber blocks with a T-shaped cross-section, the second copper plate has a second strip opening, and both sides of the second strip opening are respectively inserted into the two second slots, and the four second strip rubber blocks are located on the outside of the second copper plate; an inner ventilation channel is formed between the inner surrounding layer and the outer surrounding layer, and an outer ventilation channel is formed between the outer surrounding layer and the aluminum foil wrapping layer.

3. The high-efficiency heat dissipation and high-efficiency shielding fire-resistant control cable according to claim 2, It is characterized in that The four first strip-shaped rubber blocks are distributed in a ring shape with equal intervals, and the four second strip-shaped rubber blocks are distributed in a ring shape with equal intervals.

4. The high-efficiency heat dissipation and high-efficiency shielding fire-resistant control cable according to claim 3, It is characterized in that The first strip rubber block is fixedly connected to the accommodating groove by adhesive, and the first strip rubber block has an abutting arc surface abutting against the outer side of the inner protective layer; four mounting plates with straight cross-sections are formed at the second copper plate, and each mounting plate is fixedly connected with a second strip rubber block by adhesive; the cross-section of the protrusion includes two arcs and a straight line connecting the two arcs, and the inner side of each mounting plate abuts against one of the protrusions.

5. The high-efficiency heat dissipation and high-efficiency shielding fire-resistant control cable according to claim 2, It is characterized in that Both ends of the control cable are equipped with a filter part, a ventilation part, a cable connector, a first fixing ring and a second fixing ring; the cable connector is connected to the end of the control cable; the first fixing ring is fixedly connected to the outer sheath and surrounds the outer sheath, and the second fixing ring is fixedly connected to the inner protective layer and surrounds the inner protective layer; the filter part includes two filter units that can be spliced ​​with each other, and the filter unit includes an inner arc panel, a first end rod, a second end rod and a plug connected to the inner arc panel, the first end rod includes two first connecting rods connected to one end of the inner arc panel and a first arc rod connecting the two first connecting rods, the second end rod includes two second connecting rods connected to 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 rod and the inner arc panel, and a filter that can be inserted into the plug is installed at the plug An inwardly flipped mounting ring, wherein a second filter is installed at the mounting ring; the ventilation part comprises two ventilation units that can be spliced ​​with each other, the ventilation unit comprises an outer arc panel, a first semicircular ring connected to one end of the outer arc panel, a second semicircular ring connected to the other end of the outer arc panel, a ventilation pipe connected to the outer arc panel, a connecting part that can be fixedly installed at the ventilation pipe, and two strip-shaped convex edges fixedly connected to the outer arc panel, the ventilation pipe can be inserted by the insert tube, the first fixing ring and the second fixing ring are both located in the ventilation part, the ventilation pipe has a first external thread, the connecting part comprises a connecting flange, a fixing pipe connected to the connecting flange, and two L-shaped limiting rods fixedly connected to the connecting flange, the fixing pipe has a first internal thread that cooperates with the first external thread, and the end of the limiting rod can abut the mounting ring to limit the flipping of the mounting ring.

6. The high-efficiency heat dissipation and high-efficiency shielding fire-resistant control cable according to claim 5, It is characterized in that The strip-shaped convex edge is provided with a mounting through hole, and the two ventilation units are fixedly connected by bolts and nuts; the first fixing ring and the second fixing ring are both rubber rings, the first fixing ring is bonded and fixed to the outer sleeve, and the second fixing ring is bonded and fixed to the inner protective layer; the circumferential surface of the first fixing ring abuts the inner side of the outer arc panel, and the end face of the first fixing ring abuts the first semicircular ring; the circumferential surface of the second fixing ring abuts the inner side of the outer arc panel, and the end face of the second fixing ring abuts the second semicircular ring.

7. The high-efficiency heat dissipation and high-efficiency shielding fire-resistant control cable according to claim 5, It is characterized in that A plurality of radial rods are connected between the second arc rod and the inner arc panel; the first connecting rod and the second connecting rod of one of the two filter units both have positioning columns, and the first connecting rod and the second connecting rod of the other filter unit both have positioning holes.

8. The high-efficiency heat dissipation and high-efficiency shielding fire-resistant control cable according to claim 5, It is characterized in that End protection units are installed at both ends of the control cable, and a mounting arc panel is fixedly connected to the first semicircular ring. The two mounting arc panels can be spliced ​​into a mounting tube, and the mounting tube has a second external thread; the end protection unit includes a mounting ring, a rubber sleeve connected to the mounting ring, and a rubber ring connected to the rubber sleeve, the mounting ring has a second internal thread that cooperates with the second external thread, and the rubber ring surrounds and abuts the cable connector.

9. The high-efficiency heat dissipation and high-efficiency shielding fire-resistant control cable according to claim 5, It is characterized in that The inner diameter of the first arc rod, the inner diameter of the second arc 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 sheath, 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 insert is equal to the inner diameter of the ventilation pipe; the second semicircular ring is located between the second fixing ring and the cable connector.

10. The high-efficiency heat dissipation and high-efficiency shielding fire-resistant control cable according to claim 5, It is characterized in that The armor layer is a steel tape armor layer, the flame retardant wrapping layer is a mica tape wrapping layer, the outer sheath is a polyvinyl chloride outer sheath, and the fire-resistant layer is made of low-smoke halogen-free material.

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