CN212570466U

CN212570466U - High-temperature-resistant cable for electric appliance control

Info

Publication number: CN212570466U
Application number: CN202020394261.7U
Authority: CN
Inventors: 吴学明; 吴迪
Original assignee: Jiangsu Ruiyang Cable Co ltd
Current assignee: Jiangsu Ruiyang Cable Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-02-19
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses a high temperature resistant cable for electric appliance control in the technical field of cables, which comprises a central reinforced core, a grounding core and a communication core, wherein two groups of the communication core are arranged in a left cavity, a shielding layer is arranged outside a radiating ring, a heat conducting silicon rubber filling layer is arranged between the inner wall of the shielding layer and the outer wall of the radiating ring, a plurality of groups of elastic extrusion blocks are arranged on the annular array of the outer wall of the radiating layer, an elastic rubber layer is fixedly arranged on the outer wall of each elastic extrusion block, and an arc-shaped heat insulation board is arranged between two adjacent groups of the elastic extrusion blocks, so that the utility model is provided with an arc-shaped heat insulation board which can well prevent the external high temperature from being transmitted to the inside of the cable, and an air separation layer I and an air separation layer II which are formed by the separation of the, the high temperature resistance of the cable is further improved, and the cable has the advantages of high temperature resistance, flame retardance, environmental protection and the like.

Description

High-temperature-resistant cable for electric appliance control

Technical Field

The utility model relates to the technical field of cables, specifically be a high temperature resistant cable for electrical apparatus control.

Background

The wire and cable industry is the second industry in China next to the automobile industry, and both the product variety satisfaction rate and the domestic market share rate exceed 90%. The total output value of the electric wires and cables in China exceeds the United states worldwide, and the electric wires and cables become the first large electric wire and cable production control cable country in the world. Along with the high-speed development of the China wire and cable industry, the number of newly added enterprises is continuously increased, and the overall technical level of the industry is greatly improved.

The existing cable cannot bear high temperature when a fire disaster happens, the cable is easily damaged, and meanwhile, the high temperature inside the cable cannot be effectively dissipated when the cable is used for a long time, so that the service life of the cable is short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature resistant cable for electrical apparatus control to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature-resistant cable for electric appliance control comprises a central reinforced core, a grounding wire core and a communication wire core, wherein the grounding wire core and the communication wire core are respectively provided with two groups, a radiating ring is sleeved on the outer wall of the central reinforced core, a plurality of groups of heat conducting sheets are arranged in an annular array on the outer wall of the radiating ring, a cavity is formed between every two adjacent groups of heat conducting sheets, cable bodies are respectively arranged in the two groups of cavities at the top and the bottom, two groups of grounding wire cores are arranged in a right cavity, two groups of communication wire cores are arranged in a left cavity, a shielding layer is arranged on the outer side of the radiating ring, a heat conducting silicon rubber filling layer is arranged between the inner wall of the shielding layer and the outer wall of the radiating ring, the heat conducting silicon rubber filling layer is positioned in the cavity, an inner sheath is arranged on the outer wall of the shielding layer, a radiating layer is wound on the outer wall of the, the heat dissipation layer outer wall annular array is provided with the multiunit the elasticity extrusion piece, the multiunit the elasticity extrusion piece outer wall is fixed and is provided with the elasticity rubber layer, adjacent two sets of be provided with the arc heat insulating board between the elasticity extrusion piece, elasticity rubber layer outer wall is provided with the oversheath.

Furthermore, the number of the heat-conducting fins is six, and the six groups of heat-conducting fins are arranged on the outer wall of the radiating ring along the annular array.

Furthermore, a filling cavity is formed in the elastic extrusion block, and an elastic material filling layer is arranged in the filling cavity.

Further, the outer wall of the elastic rubber layer, the inner wall of the elastic rubber layer and the side wall of the elastic extrusion block are provided with heat conduction layers, a heat dissipation cavity is arranged in the elastic rubber layer, and through holes communicated with the heat dissipation cavity are uniformly formed in the outer wall and the inner wall of the elastic rubber layer.

Furthermore, the vertical section of the elastic extrusion block is rectangular, and the outer wall of the heat dissipation layer is provided with positioning grooves matched with the elastic extrusion block in an annular array manner.

Furthermore, the outer wall of the outer sheath is provided with grooves in an annular array.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the utility model discloses be provided with the arc heat insulating board can be fine prevent that external high temperature from transmitting to inside the cable, the inside that the external heat transmission of preventing that the arc heat insulating board separates the air separation layer one and the air separation layer two that form prevents around this cable catches fire makes the internal structure damage, further improve the high temperature resistance of this cable, the oversheath that adopts simultaneously is 125 ℃ irradiation cross-linking halogen-free flame retardant polyolefin restrictive coating, 125 ℃ high temperature resistant and not delayed burning, the smoke volume that produces is low, do not produce harmful gas and smog, this cable has advantages such as high temperature resistant, fire-retardant environmental protection;

2) the utility model is provided with a heat dissipation ring, a heat conduction fin, a heat conduction silicon rubber filling layer, a heat dissipation layer, a heat conduction layer and a heat dissipation cavity, so that the heat inside the cable is transferred and led outwards, the heat inside the cable is prevented from being accumulated, the high-temperature damage is avoided, and the service life of the cable is prolonged;

3) the utility model discloses be provided with elastic rubber layer, elastic extrusion piece and elastic material filling layer and make this cable have outstanding resistance to compression and shock resistance, improve its practicality, further prolong its life.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the structure of the elastic material filling layer of the present invention.

In the figure: 1. a central reinforcing core; 2. a heat dissipation ring; 3. a heat conductive sheet; 4. a cable body; 5. a grounding wire core; 6. a communication wire core; 7. a shielding layer; 8. a heat-conducting silicone rubber filling layer; 9. an inner sheath; 10. a heat dissipation layer; 11. an elastic extrusion block; 111. a filling layer of an elastic material; 12. an elastic rubber layer; 121. a heat conductive layer; 122. a heat dissipation cavity; 13. an arc-shaped heat insulation plate; 14. an outer sheath; 141. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: referring to fig. 1, the high temperature resistant cable for electric appliance control includes a central reinforced core 1, a ground wire core 5 and a communication wire core 6, wherein the ground wire core 5 and the communication wire core 6 are respectively provided with two groups, and the central reinforced core 1, the ground wire core 5 and the communication wire core 6 are widely applied in the field and are not further detailed herein;

referring to fig. 1, a heat dissipation ring 2 is sleeved on the outer wall of a central reinforced core 1, a plurality of groups of heat conducting fins 3 are arranged on the outer wall of the heat dissipation ring 2 in an annular array mode, a cavity is formed between every two adjacent groups of heat conducting fins 3, the heat dissipation ring 2 and the heat conducting fins 3 are beneficial to improving the heat dissipation rate of the cable and increasing the safety coefficient of the cable, and due to the adoption of the cavity, the utilization rate of a space is greatly improved, and mutual influences of internal wire cores and;

referring to fig. 1, two groups of cavities at the top and the bottom are provided with cable bodies 4, two groups of grounding wire cores 5 are arranged in a right cavity, two groups of communication wire cores 6 are arranged in a left cavity, the cable bodies 4 are widely applied in the field, a cable core protective layer is arranged in each cable body 4, a cable core cloth belt is arranged in each cable core protective layer, and a cable core is arranged in each cable core cloth belt;

referring to fig. 1, a shielding layer 7 is disposed outside the heat dissipation ring 2, and the shielding layer 7 is a metal wire shielding layer, a tinned copper wire braid layer, a copper wire shielding layer, or the like, which are widely used in the field and can be flexibly selected by a person skilled in the art, and are not further described herein;

referring to fig. 1, a heat-conducting silicone rubber filling layer 8 is arranged between the inner wall of the shielding layer 7 and the outer wall of the heat dissipation ring 2, and the heat-conducting silicone rubber filling layer 8 is located in the cavity, so that the heat dissipation of the cable can be promoted by the heat-conducting silicone rubber filling layer 8, and the interior of the cable is more compact;

referring to fig. 1, an inner sheath 9 is disposed on an outer wall of the shielding layer 7, a heat dissipation layer 10 is wrapped on an outer wall of the inner sheath 9, and the heat dissipation layer 10 may be a heat dissipation silica gel layer;

referring to fig. 1, one end of each of the plurality of groups of heat-conducting fins 3 away from the heat dissipation ring 2 sequentially penetrates through the shielding layer 7 and the inner sheath 9 and is connected with the inner wall of the heat dissipation layer 10, so that heat is conducted outwards;

referring to fig. 1, a plurality of groups of elastic extrusion blocks 11 are arranged on the outer wall of the heat dissipation layer 10 in an annular array, an elastic rubber layer 12 is fixedly arranged on the outer wall of each group of elastic extrusion blocks 11, each elastic extrusion block 11 is made of an elastic high-temperature-resistant rubber material, and the elastic rubber layer 12 and the elastic extrusion blocks 11 are matched to improve the compression resistance and the impact resistance of the cable;

referring to fig. 1, an arc-shaped heat insulation plate 13 is arranged between two adjacent groups of elastic extrusion blocks 11, the arc-shaped heat insulation plate 13 is a glass fiber heat insulation plate, so that damage to an internal structure caused by external high temperature is avoided, a circuit can be kept smooth when a fire disaster occurs, meanwhile, as can be seen from fig. 1, the arc-shaped heat insulation plate 13 separates the inner wall of the elastic rubber layer 12 and the outer wall of the heat dissipation layer 10 to form a first air separation layer located at the top of the arc-shaped heat insulation plate 13 and a second air separation layer located at the bottom of the arc-shaped heat insulation plate 13, and the first air separation layer and the second air separation layer can prevent external heat from being transmitted to the inside of the cable;

referring to fig. 1, the outer wall of the elastic rubber layer 12 is provided with the outer sheath 14, the outer sheath 14 adopts a 125 ℃ irradiation cross-linking halogen-free flame retardant polyolefin sheath layer which can resist 125 ℃ high temperature and does not delay combustion, the generated smoke amount is low, no harmful gas and smoke are generated, and secondary damage of fire can be effectively prevented.

As shown in fig. 1: the number of the heat conducting fins 3 is six, the six groups of heat conducting fins 3 are all arranged on the outer wall of the radiating ring 2 along the annular array, and the heat conducting fins 3 can be ceramic sheets and are used for guiding out heat inside the cable, so that the heat inside the cable is prevented from being accumulated and being damaged at high temperature;

as shown in fig. 1: a filling cavity is formed in the elastic extrusion block 11, an elastic material filling layer 111 is arranged in the filling cavity, and the elastic material filling layer 111 can be made of foamed polyurethane filling materials, so that the elastic extrusion block 11 has high energy absorption and counter force, and has the characteristics of low cost and long service life;

as shown in fig. 2: the outer wall of the elastic rubber layer 12, the inner wall of the elastic rubber layer 12 and the side wall of the elastic extrusion block 11 are all provided with heat conducting layers 121, a heat dissipation cavity 122 is arranged in the elastic rubber layer 12, through holes communicated with the heat dissipation cavity 122 are uniformly formed in the outer wall and the inner wall of the elastic rubber layer 12, the heat conducting layers 121 can be made of heat conducting silica gel layers, heat enters the heat dissipation cavity 122 through the through holes and then flows from the heat dissipation cavity 122 to the heat conducting layers 121 at the top, and heat conduction;

as shown in fig. 1: the vertical section of the elastic extrusion block 11 is rectangular, positioning grooves (not shown in the figure) matched with the elastic extrusion block 11 are formed in the annular array on the outer wall of the heat dissipation layer 10, and the elastic extrusion block 11 is matched with the positioning grooves to play a role in positioning and supporting;

as shown in fig. 1: the outer wall of the outer sheath 14 is provided with the grooves 141 in an annular array, and the grooves 141 increase the heat dissipation area, improve the heat dissipation efficiency and avoid high temperature.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high temperature resistant cable for electrical apparatus control, strengthens core (1), earth connection core (5) and communication sinle silk (6) including the center, earth connection core (5) and communication sinle silk (6) all are provided with two sets ofly, its characterized in that: center reinforcement core (1) outer wall cover is equipped with cooling ring (2), cooling ring (2) outer wall annular array is provided with multiunit conducting strip (3), and is adjacent two sets of form the cavity between conducting strip (3), all is provided with cable body (4) in top and the two sets of cavities in bottom, and is two sets of earthing core (5) set up in the right side cavity, and are two sets of communication sinle silk (6) set up in the cavity of left side, the cooling ring (2) outside is provided with shielding layer (7), be provided with heat conduction silicon rubber filling layer (8) between shielding layer (7) inner wall and cooling ring (2) outer wall, and heat conduction silicon rubber filling layer (8) are located the cavity, shielding layer (7) outer wall is provided with inner sheath (9), inner sheath (9) outer wall has around heat dissipation layer (10), multiunit the one end that cooling ring (2) was kept away from to conducting strip (3) all runs through shielding layer (7) and inner sheath (9) in proper order and with heat dissipation layer ( The heat dissipation layer is characterized in that the inner wall is connected, a plurality of groups of elastic extrusion blocks (11) are arranged on the outer wall of the heat dissipation layer (10) in an annular array mode, the outer walls of the elastic extrusion blocks (11) are fixedly provided with elastic rubber layers (12), arc-shaped heat insulation plates (13) are arranged between every two adjacent groups of the elastic extrusion blocks (11), and outer sheaths (14) are arranged on the outer walls of the elastic rubber layers (12).

2. The high temperature resistant cable for electric appliance control according to claim 1, wherein: the number of the heat-conducting fins (3) is six, and the six groups of heat-conducting fins (3) are arranged on the outer wall of the heat-radiating ring (2) along the annular array.

3. The high temperature resistant cable for electric appliance control according to claim 1, wherein: a filling cavity is formed in the elastic extrusion block (11), and an elastic material filling layer (111) is arranged in the filling cavity.

4. The high temperature resistant cable for electric appliance control according to claim 1, wherein: the heat conduction layer (121) is arranged on the outer wall of the elastic rubber layer (12), the inner wall of the elastic rubber layer (12) and the side wall of the elastic extrusion block (11), a heat dissipation cavity (122) is arranged in the elastic rubber layer (12), and through holes communicated with the heat dissipation cavity (122) are uniformly formed in the outer wall and the inner wall of the elastic rubber layer (12).

5. The high temperature resistant cable for electric appliance control according to claim 1, wherein: the vertical section of the elastic extrusion block (11) is rectangular, and the outer wall of the heat dissipation layer (10) is provided with positioning grooves matched with the elastic extrusion block (11) in an annular array mode.

6. The high temperature resistant cable for electric appliance control according to claim 1, wherein: the outer wall of the outer sheath (14) is provided with a groove (141) in an annular array.