CN111899934A - Cross-linked polyethylene insulated flame-retardant polyvinyl chloride sheath shielding control cable - Google Patents
Cross-linked polyethylene insulated flame-retardant polyvinyl chloride sheath shielding control cable Download PDFInfo
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- CN111899934A CN111899934A CN202010895332.6A CN202010895332A CN111899934A CN 111899934 A CN111899934 A CN 111899934A CN 202010895332 A CN202010895332 A CN 202010895332A CN 111899934 A CN111899934 A CN 111899934A
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- heat dissipation
- control cable
- polyvinyl chloride
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/426—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using cooling fins, ribs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
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Abstract
The invention discloses a cross-linked polyethylene insulated flame-retardant polyvinyl chloride sheath shielding control cable which comprises an outer sleeve, wherein a flame-retardant sleeve is fixedly sleeved in the outer sleeve, a connecting plate is fixedly connected to the inner wall of the flame-retardant sleeve, a supporting block is fixedly connected to the other end of the connecting plate, a first cavity is formed in the supporting block, a transmission rod is slidably sleeved on the supporting block, a bearing block is fixedly connected to the top end of the transmission rod, the bottom end of the transmission rod extends into the first cavity, a transmission plate is mounted at the extending end of the transmission rod, and a first spring is mounted on the bottom surface of the transmission plate; the invention can fully relieve the pressure of the outside, so that the shielding layer in the cable is not easy to damage, the shielding effect of the cable is not changed, the normal work of the electronic device is ensured, the heat dissipation effect of the cable is improved, the high temperature generated after the cable is used for a long time is dispersed, the shielding layer is protected, the service life of the shielding layer is prolonged, and the practicability of the cable is improved.
Description
Technical Field
The invention belongs to the field of shielded control cables, and particularly relates to a crosslinked polyethylene insulated flame-retardant polyvinyl chloride sheathed shielded control cable.
Background
The shielding layer of the shielding control cable with good shielding effect is formed by wrapping a copper strip, the general shielding control cable body is formed by weaving an aluminum foil and a copper wire into a metal mesh, one end of the shielding layer is grounded and mainly has a shielding effect on electric field interference, and the two ends can play a role in preventing interference by high-frequency reflection when being grounded, but the interference preventing effect is limited due to the existence of meshes and longitudinal discontinuity of the shielding layer.
General shielding control cable on the market receives when external pressure oppresses, easily make the inside shielding layer of cable damage to make control cable's shielding effect reduce, easily make electron device lose the ability of normal work, and general shielding control cable's radiating effect is not good, long-term the back of using, the shielding layer of cable easily damages because of high temperature, has shortened shielding control cable's life, has brought the problem that the cable practicality reduces, for this reason, we propose a fire-retardant polyvinyl chloride sheath shielding control cable of crosslinked polyethylene insulation.
Disclosure of Invention
The invention aims to provide a cross-linked polyethylene insulation flame-retardant polyvinyl chloride sheath shielding control cable, which solves the problems that when a common shielding control cable provided in the background art is stressed by external pressure, a shielding layer in the cable is easy to damage, so that the shielding effect of the control cable is reduced, an electronic device is easy to lose the normal working capability, the heat dissipation effect of the common shielding control cable is poor, after the common shielding control cable is used for a long time, the shielding layer of the cable is easy to damage due to high temperature, the service life of the shielding control cable is shortened, and the practicability of the cable is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: a cross-linked polyethylene insulation flame-retardant polyvinyl chloride sheath shielding control cable comprises an outer sleeve, a flame-retardant sleeve is fixedly sleeved in the outer sleeve, a connecting plate is fixedly connected to the inner wall of the flame-retardant sleeve, a supporting block is fixedly connected to the other end of the connecting plate, a first cavity is formed in the supporting block, a transmission rod is slidably sleeved on the supporting block, a bearing block is fixedly connected to the top end of the transmission rod, the bottom end of the transmission rod extends into the first cavity, a transmission plate is mounted at the extending end of the transmission rod, a first spring is mounted on the bottom surface of the transmission plate, the other end of the first spring is fixedly connected with the bottom surface of the first cavity, a pressing rod is fixedly connected to the bottom surface of the transmission plate, a pressing plate is fixedly connected to the other end of the pressing rod, a cushion pad is connected to the bottom surface of the pressing plate in a contact manner, the other end of the pull rod is rotatably connected with a sliding block, the sliding block is connected with the side wall of the first cavity in a sliding mode, a second spring is installed on the top face of the sliding block, and the other end of the second spring is fixedly connected with the top face of the first cavity.
As a further scheme of the invention: the two pressing rods and the two pull rods are respectively arranged and are respectively symmetrically arranged relative to the transmission rod, the transmission plate is sleeved with a guide pillar in a sliding mode, and two ends of the guide pillar are fixedly connected with two ends of the first cavity respectively.
As a further scheme of the invention: install the skin between supporting shoe and the fire-retardant cover, the shielding layer has been cup jointed to outer internal fixation, the insulating layer has been cup jointed to the internal fixation of shielding layer, and the surperficial rigid coupling of shielding layer has the conducting strip, the other end of conducting strip extends to outside the skin, and the conducting strip stretch out to serve the rigid coupling and have the heat dissipation cover, the heat dissipation cover cup joints with outer sliding, and the top surface rigid coupling of heat dissipation cover has the conducting rod, the other end of conducting rod extends outside the overcoat, and the conducting rod stretch out to serve the rigid coupling and have the heating panel.
As a further scheme of the invention: the surface of the heat dissipation plate is provided with a heat dissipation groove, through holes are formed in the heat dissipation plate and the heat conduction rod in a penetrating mode, a ventilation block is fixedly sleeved in each through hole, a hole channel is formed in each ventilation block, and the diameter of the top end of each hole channel is larger than that of the bottom end of each hole channel.
As a further scheme of the invention: the supporting shoe is the triangular prism setting, the bearing block is provided with the multiunit, and multiunit bearing block evenly distributed is on the faceted pebble of supporting shoe.
As a further scheme of the invention: the heat conduction blocks are provided with multiple groups, the multiple groups of heat conduction blocks are uniformly distributed about the core body, and a gap exists between the heat dissipation sleeve and the heat conduction rod.
As a further scheme of the invention: the bottom of the ventilation block is located right above the gap, and the pore channel is communicated with the gap.
Compared with the prior art, the invention has the beneficial effects that:
1. when the outer sleeve is extruded, pressure is transmitted to the bearing block through the flame-retardant sleeve, the bearing block pushes the transmission plate in the support block to move downwards through the transmission rod, the transmission plate can only do linear motion under the limiting guide of the guide pillar, so that the moving deviation of the transmission plate is avoided, the transmission plate can vertically press the first spring downwards, the first spring stores elastic potential energy and preliminarily relieves pressure intensity, meanwhile, the pressing rod on the transmission plate pushes the pressing plate to press the cushion pad downwards, the cushion pad shrinks, the purpose of secondarily relieving pressure intensity is achieved, the cushion pad is not easy to tear and damage due to the vertical movement of the transmission plate, meanwhile, the transmission plate pulls the sliding block to move downwards along the side wall of the first cavity through the pull rod, the second spring on the sliding block is stretched, the purpose of storing kinetic energy again is achieved, the pressure intensity is buffered for the third time, the purpose of fully relieving the external pressure intensity compression is, the shielding effect of the cable is unchanged, and the normal work of the electronic device is ensured.
2. After the cable is used for a long time, the heat that the core produced passes through in insulating layer and the shielding layer transmission to the heat-conducting block, thereby make the heat-conducting block scatter the heat in the heat dissipation cover, tentatively alleviate thermal gathering through the heat dissipation cover, pore in the rethread ventilation block converts external wind into the space of cool wind leading-in to the heat dissipation cover upper end, and then reach the purpose of tentatively cooling, simultaneously the heat dissipation cover with in the leading-in heat conduction pole of heat, scatter the heat on the heating panel outside the overcoat through the heat conduction pole, reach the secondary and alleviate the purpose of heat gathering, reach the purpose of fully cooling simultaneously, make the radiating effect of cable improve, the high temperature that produces after making the cable use for a long time can disperse, the shielding layer has been protected, the life of shielding layer has been improved, make the practicality of cable improve.
Drawings
Fig. 1 is a sectional view of the overall structure of the present invention.
FIG. 2 is a schematic view of the support block structure of the present invention.
FIG. 3 is a right side sectional view of the support block structure of the present invention.
Fig. 4 is an enlarged view of the structure of part a of the present invention.
Fig. 5 is an enlarged view of the structure of part B of the present invention.
Fig. 6 is a sectional view of the heat radiating plate structure of the present invention.
In figure 1, a jacket; 2. a flame-retardant sleeve; 3. a connector tile; 4. a support block; 5. a transmission rod; 6. a pressure-bearing block; 7. a drive plate; 8. a first spring; 9. a pressure lever; 10. pressing a plate; 11. a cushion pad; 12. a guide post; 13. a pull rod; 14. a slider; 15. a second spring; 16. an outer layer; 17. a shielding layer; 18. an insulating layer; 19. a core body; 20. a heat conducting block; 21. a heat dissipation sleeve; 22. a heat conducting rod; 23. a heat dissipation plate; 24. and (4) a ventilation block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-6, a cross-linked polyethylene insulated flame-retardant polyvinyl chloride sheath shielding control cable comprises an outer sleeve 1, a flame-retardant sleeve 2 is fixedly sleeved in the outer sleeve 1, a connecting plate 3 is fixedly connected to the inner wall of the flame-retardant sleeve 2, the other end of the connecting plate 3 is fixedly connected with a supporting block 4, a first cavity is formed in the supporting block 4, a transmission rod 5 is slidably sleeved on the supporting block 4, a bearing block 6 is fixedly connected to the top end of the transmission rod 5, the bottom end of the transmission rod 5 extends into the first cavity, a transmission plate 7 is mounted on the extending end of the transmission rod 5, a first spring 8 is mounted on the bottom surface of the transmission plate 7, the other end of the first spring 8 is fixedly connected to the bottom surface of the first cavity, a pressing rod 9 is fixedly connected to the bottom surface of the transmission plate 7, a pressing plate 10 is fixedly connected to the other end of the pressing rod 9, a cushion 11 is connected to the bottom, the other end of the pull rod 13 is rotatably connected with a slide block 14, the slide block 14 is slidably connected with the side wall of the first cavity, a second spring 15 is installed on the top surface of the slide block 14, the other end of the second spring 15 is fixedly connected with the top surface of the first cavity, the pressure-bearing block 6 pushes the driving plate 7 in the supporting block 4 to move downwards through the driving rod 5, the driving plate 7 can only do linear motion under the limiting guide of the guide post 12, so that the moving deviation of the driving plate 7 is avoided, the driving plate 7 can vertically press the first spring 8, the first spring 8 stores elastic potential energy and primarily relieves the pressure intensity, meanwhile, the pressing rod 9 on the driving plate 7 pushes the pressing plate 10 to press the cushion pad 11 downwards, so that the cushion pad 11 contracts to achieve the purpose of secondarily relieving the pressure intensity, the vertical movement of the driving plate 7 ensures that the cushion pad 11 is not easy to tear and damage, and meanwhile, the, the second spring 15 on the sliding block 14 is stretched to achieve the purpose of storing kinetic energy again, so that the pressure is buffered for the third time, the purpose of fully relieving the external pressure compression is achieved, the shielding layer 17 inside the cable is not easy to damage, the shielding effect of the cable is unchanged, and the normal work of the electronic device is ensured.
The two pressing rods 9 and the two pull rods 13 are respectively arranged, the two pressing rods 9 and the two pull rods 13 are respectively symmetrically arranged about the transmission rod 5, the guide column 12 is sleeved on the transmission plate 7 in a sliding mode, and two ends of the guide column 12 are fixedly connected with two ends of the first cavity respectively, so that the movement of the transmission plate 7 is limited and guided, the structure is reasonable, and the expected effect can be achieved.
An outer layer 16 is arranged between the supporting block 4 and the flame-retardant sleeve 2, a shielding layer 17 is fixedly sleeved in the outer layer 16, an insulating layer 18 is fixedly sleeved in the shielding layer 17, a core 19 is fixedly sleeved in the insulating layer 18, a heat conducting block 20 is fixedly connected to the surface of the shielding layer 17, the other end of the heat conducting block 20 extends out of the outer layer 16, a heat dissipation sleeve 21 is fixedly connected to the extending end of the heat conducting block 20, the heat dissipation sleeve 21 is in sliding sleeve joint with the outer layer 16, a heat conducting rod 22 is fixedly connected to the top surface of the heat dissipation sleeve 21, the other end of the heat conducting rod 22 extends out of the outer sleeve 1, a heat dissipation plate 23 is fixedly connected to the extending end of the heat conducting rod 22, heat accumulation is preliminarily relieved through the heat dissipation sleeve 21, external wind is converted into cold wind to be led into a gap at the upper end of the heat dissipation sleeve 21 through a pore passage in the ventilation block 24, the purpose of preliminary cooling is further achieved, meanwhile, the heat is led into the, the purpose of heat gathering is alleviated to the secondary, reaches the purpose of abundant cooling simultaneously for the radiating effect of cable improves, and the high temperature that produces after the cable that makes uses for a long time can disperse, has protected shielding layer 17, has improved shielding layer 17's life, makes the practicality of cable improve.
The surface of the heat dissipation plate 23 is provided with a heat dissipation groove, the heat dissipation plate 23 and the heat conduction rod 22 are internally provided with through holes in a through mode, the through holes are fixedly sleeved with the ventilation blocks 24, the ventilation blocks 24 are internally provided with holes, and the diameters of the top ends of the holes are larger than the diameters of the bottom ends of the holes, so that the surface area of the heat dissipation plate 23 is increased, and the heat dissipation efficiency of the heat dissipation plate 23 is improved.
Supporting shoe 4 is the triangular prism setting, and bearing block 6 is provided with the multiunit, and multiunit bearing block 6 evenly distributed is on the faceted pebble of supporting shoe 4 for rational in infrastructure can reach anticipated effect.
The heat conduction blocks 20 are provided with multiple groups, the multiple groups of heat conduction blocks 20 are uniformly distributed about the core 19, and a gap exists between the heat dissipation sleeve 21 and the heat conduction rod 22, so that the heat conduction efficiency of the shielding layer 17 is improved, and the shielding layer 17 is ensured not to be easily damaged due to high temperature.
The bottom of the ventilation block 24 is located right above the gap, and the pore passage is communicated with the gap, so that the cooling efficiency of the heat dissipation sleeve 21 is improved.
The working principle is as follows: when the outer sleeve 1 is extruded, pressure is transmitted to the pressure-bearing block 6 through the flame-retardant sleeve 2, so that the pressure-bearing block 6 pushes the transmission plate 7 in the supporting block 4 to move downwards through the transmission rod 5, the transmission plate 7 can only do linear motion under the limiting guidance of the guide post 12, thereby avoiding the moving deviation of the transmission plate 7, enabling the transmission plate 7 to vertically press the first spring 8, enabling the first spring 8 to store elastic potential energy and primarily relieve pressure intensity, meanwhile, the pressure rod 9 on the transmission plate 7 pushes the pressure plate 10 to press the cushion pad 11 downwards, enabling the cushion pad 11 to shrink, and achieving the purpose of secondarily relieving pressure intensity, and the vertical movement of the transmission plate 7 ensures that the cushion pad 11 is not easy to tear and damage, meanwhile, the transmission plate 7 pulls the sliding block 14 to move downwards along the side wall of the first cavity through the pull rod 13, enabling the second spring 15 on the sliding block 14 to stretch, achieving the purpose of, and then achieve the purpose of fully relieving the external pressure oppression, make the shielding layer 17 inside the cable not fragile, make the shielding effect of the cable invariable, has guaranteed the normal work of the electronic device, after the cable uses for a long time, the heat that the core 19 produces is transmitted to the heat conduction block 20 through insulating layer 18 and shielding layer 17, thus make the heat conduction block 20 scatter the heat in the heat-dissipating sleeve 21, preliminarily relieve the gathering of the heat through the heat-dissipating sleeve 21, and then change the external wind into the cool wind and lead into the space of the upper end of the heat-dissipating sleeve 21 through the pore in the ventilating block 24, and then achieve the purpose of preliminary cooling, the heat is led into in the heat conduction pole 22 in the heat-dissipating sleeve 21 at the same time, scatter the heat on the heat-dissipating plate 23 outside the overcoat 1 through the heat conduction pole 22, achieve the purpose of secondarily relieving the gathering of the heat, achieve the purpose of fully cooling at, the high temperature that produces after the cable that makes long-term use can disperse, has protected shielding layer 17, has improved shielding layer 17's life for the practicality of cable improves, accomplishes the operation.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (7)
1. The utility model provides a fire-retardant polyvinyl chloride sheath shielding control cable of crosslinked polyethylene insulation, its characterized in that, includes overcoat (1), flame-retardant cover (2) has been cup jointed to overcoat (1) internal fixation, the rigid coupling has linkage plate (3) on the inner wall of flame-retardant cover (2), the other end rigid coupling of linkage plate (3) has supporting shoe (4), cavity one has been seted up in supporting shoe (4), and sliding cup joint has transfer line (5) on supporting shoe (4), the top rigid coupling of transfer line (5) has bearing block (6), the bottom of transfer line (5) extends to in the cavity one, and the end of stretching into of transfer line (5) installs driving plate (7), spring one (8) is installed to the bottom surface of driving plate (7), the other end of spring one (8) and the bottom surface rigid coupling of cavity one, and the bottom surface rigid coupling of driving plate (7) has depression bar (9), the other end rigid coupling of depression bar (9) has clamp plate (10), the bottom surface contact of clamp plate (10) is connected with blotter (11), bottom surface rigid coupling of blotter (11) and cavity one, it is connected with pull rod (13) to rotate on the lateral wall of driving plate (7), the other end of pull rod (13) rotates and is connected with slider (14), slider (14) and the lateral wall sliding connection of cavity one, and the top surface of slider (14) installs spring two (15), the other end of spring two (15) and the top surface rigid coupling of cavity one.
2. The shielding control cable of the crosslinked polyethylene insulating flame-retardant polyvinyl chloride sheath according to claim 1, wherein there are two pressure rods (9) and two pull rods (13), the two pressure rods (9) and the two pull rods (13) are symmetrically disposed about the transmission rod (5), the transmission plate (7) is slidably sleeved with a guide pillar (12), and two ends of the guide pillar (12) are fixedly connected to two ends of the first cavity respectively.
3. The cross-linked polyethylene insulated flame-retardant polyvinyl chloride sheathed shielding control cable according to claim 1, it is characterized in that an outer layer (16) is arranged between the supporting block (4) and the flame-retardant sleeve (2), a shielding layer (17) is fixedly sleeved in the outer layer (16), an insulating layer (18) is fixedly sleeved in the shielding layer (17), a core body (19) is fixedly sleeved in the insulating layer (18), and the surface of the shielding layer (17) is fixedly connected with a heat conducting block (20), the other end of the heat conducting block (20) extends out of the outer layer (16), and the extending end of the heat conducting block (20) is fixedly connected with a heat dissipation sleeve (21), the heat dissipation sleeve (21) is sleeved with the outer layer (16) in a sliding way, and the top surface of the heat dissipation sleeve (21) is fixedly connected with a heat conducting rod (22), the other end of the heat conducting rod (22) extends out of the outer sleeve (1), and the extending end of the heat conducting rod (22) is fixedly connected with a heat dissipation plate (23).
4. The shielding control cable of the crosslinked polyethylene insulating flame-retardant polyvinyl chloride sheath according to claim 3, wherein the surface of the heat dissipation plate (23) is provided with a heat dissipation groove, the heat dissipation plate (23) and the heat conduction rod (22) are internally provided with a through hole in a through manner, the through hole is internally and fixedly sleeved with the ventilation block (24), the ventilation block (24) is internally provided with a pore passage, and the diameter of the top end of the pore passage is larger than the diameter of the bottom end of the pore passage.
5. The shielding control cable of the crosslinked polyethylene insulating flame-retardant polyvinyl chloride sheath according to claim 1, wherein the supporting blocks (4) are arranged in a triangular prism, the bearing blocks (6) are provided with a plurality of groups, and the plurality of groups of bearing blocks (6) are uniformly distributed on the edge surfaces of the supporting blocks (4).
6. The cross-linked polyethylene insulated flame retardant polyvinyl chloride sheathed shielding control cable according to claim 3, wherein the heat conducting blocks (20) are provided in a plurality of groups, and the plurality of groups of heat conducting blocks (20) are uniformly distributed about the core (19), and a gap is formed between the heat dissipation sleeve (21) and the heat conducting rod (22).
7. The shielding control cable of the crosslinked polyethylene insulating flame-retardant polyvinyl chloride sheath according to claim 4, wherein the bottom end of the ventilation block (24) is located right above the gap, and the pore passage is arranged to penetrate through the gap.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895332.6A CN111899934B (en) | 2020-08-31 | 2020-08-31 | Cross-linked polyethylene insulated flame-retardant polyvinyl chloride sheath shielding control cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895332.6A CN111899934B (en) | 2020-08-31 | 2020-08-31 | Cross-linked polyethylene insulated flame-retardant polyvinyl chloride sheath shielding control cable |
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| CN111899934A true CN111899934A (en) | 2020-11-06 |
| CN111899934B CN111899934B (en) | 2021-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885524A (en) * | 2021-03-15 | 2021-06-01 | 厦门显兴科技有限公司 | Double-flame-retardant power cable |
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| CN210469772U (en) * | 2019-08-07 | 2020-05-05 | 安徽省天盛仪表线缆有限公司 | Mineral insulated heating cable |
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| US20050231909A1 (en) * | 2004-04-14 | 2005-10-20 | Hsien-Rong Liang | Chassis air guide thermal cooling solution |
| CN107945923A (en) * | 2017-10-13 | 2018-04-20 | 安徽庆华电缆有限公司 | A kind of polyethylene insulation flame-proof polyvinyl chloride flame-retardant sheath computer cable |
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| CN112885524A (en) * | 2021-03-15 | 2021-06-01 | 厦门显兴科技有限公司 | Double-flame-retardant power cable |
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| CN111899934B (en) | 2021-11-16 |
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