High-temperature-resistant insulated cable

Abstract

The utility model discloses a high-temperature-resistant insulated cable, which comprises a lead, an insulating filler, a wrapping layer, a temperature-resistant filler, an outer sheath layer and a temperature measurement heat dissipation layer. According to the utility model, the temperature measurement heat dissipation layer is arranged between the insulation filler and the wrapping layer, and the heat dissipation rack and the heat dissipation through holes are utilized to conduct the temperature inside the wire outwards, so that the wire is prevented from being overheated and generating open fire, the safety risk is reduced to a certain extent, the potential safety hazard is avoided, and meanwhile, the temperature sensor is arranged on the inner side of the heat dissipation rack. The temperature inside the cable is detected in real time, and the internal temperature is transmitted to the outside in real time through the output unit, so that a worker can perform preventive maintenance on the cable and predict a fault.

Description

Technical Field

[0001] The utility model relates to the field of cables, in particular to a high temperature resistant insulated cable. Background Art

[0002] Cables are usually rope-like cables made of several or several groups of wires twisted together. Each group of wires is insulated from each other and often twisted around a center. The entire outside is covered with a highly insulating covering. Cables have the characteristics of being energized inside and insulated outside. Cables include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wires and an insulating layer, and are used to connect circuits, electrical appliances, etc.

[0003] Most of the improvements to insulated cables in the prior art are in terms of high temperature resistance. For example, a Chinese patent document with publication number CN213339752U discloses a high temperature resistant insulated cable, including: an outer sheath layer; a waterproof layer, arranged on the inner side of the outer sheath layer; a glass fiber fireproof layer, arranged on the inner side of the waterproof layer; a mica tape insulation layer, arranged on the inner side of the glass fiber fireproof layer; an isolation sleeve, arranged on the inner side of the mica tape insulation layer, including an inner sleeve and a partition arranged on the inner sleeve, the inner sleeve and the partition are both made of silicone rubber, and the outer side of the isolation sleeve is wrapped with overlapping high temperature resistant fiber filaments; a wire core, arranged in the inner sleeve and between the mica tape insulation layer and the isolation sleeve. The utility model high temperature resistant insulated cable is provided with a glass fiber fireproof layer and a mica tape insulation layer, which can effectively improve the heat insulation and heat resistance of the cable and protect the cable from damage by high temperature.

[0004] Although the above device has certain advantages in high temperature resistance, it still has some shortcomings:

[0005] 1. The heat dissipation effect of the above-mentioned high temperature resistant cables is not good, which may easily lead to burning inside the wires, resulting in open flames and other situations that may cause cable short circuits, posing a safety hazard;

[0006] 2. Since the cable is wrapped with layers of wires, it is impossible to detect the heat conditions inside the cable in real time, and it is impossible to perform preventive maintenance and predict faults. Utility Model Content

[0007] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a high temperature resistant insulated cable.

[0008] To achieve the above object, the utility model adopts the following technical solutions: A high-temperature resistant insulating cable, comprising a conductor, an insulating filler, a wrapping layer, a temperature-resistant filler, an outer sheath layer, and a temperature-measuring and heat-dissipating layer. The outer surface of the conductor is fixedly connected with the insulating filler, the outer surface of the insulating filler is fixedly connected with the wrapping layer, the outer surface of the wrapping layer is fixedly connected with the temperature-resistant filler, and the outer surface of the temperature-resistant filler is fixedly connected with the outer sheath layer; the inner surface of the temperature-measuring and heat-dissipating layer is fixedly connected with the insulating filler, and the outer surface of the temperature-measuring and heat-dissipating layer is fixedly connected with the wrapping layer. The temperature-measuring and heat-dissipating layer includes a heat-dissipating frame, heat-dissipating through holes, a fixed support frame, an inner cavity, a temperature sensor, an output unit, a control unit, and an alarm lamp. The heat-dissipating frame wraps the insulating filler, and heat-dissipating through holes are arranged on the periphery of the heat-dissipating frame in contact with the wrapping layer. A fixed support frame is arranged inside the heat-dissipating frame, and the fixed support frame surrounds to form an inner cavity. A temperature sensor is arranged inside the heat-dissipating frame. The temperature sensor is electrically connected to the control unit through the output unit, and the control unit is electrically connected to the alarm lamp through an output circuit.

[0009] As a further scheme of the utility model, the cross-section of the heat-dissipating frame is integrally annular, and the overall cross-section inside the heat-dissipating frame is in a "cross" shape.

[0010] As a further scheme of the utility model, a plurality of groups of heat-dissipating through holes are arranged. The heat-dissipating through holes are used to conduct the heat energy generated by the conductor outwards. The more through holes, the better the heat-dissipating effect.

[0011] As a further scheme of the utility model, a plurality of groups of inner cavities are arranged, and the cross-section is in a "field" shape. The inner cavities are used to place the conductors.

[0012] As a further scheme of the utility model, the conductors are placed in the inner cavities, and the number of the conductors is adapted to the inner cavities.

[0013] As a further scheme of the utility model, the outer sheath layer includes a temperature-resistant layer, an external insulating layer, and a shielding layer. The outer surface of the temperature-resistant layer is fixedly connected with the external insulating layer, and the outer surface of the external insulating layer is fixedly connected with the shielding layer.

[0014] As a further scheme of the utility model, the alarm lamp is arranged on the outer side of the outer sheath layer, and the alarm lamp is used to warn of the temperature inside the cable.

[0015] The heat-dissipating frame and the fixed support frame are preferably made of tetrafluoroethylene. The use environment of carbon fiber is often in a low-temperature state. Tetrafluoroethylene has good mechanical toughness, excellent heat resistance and low-temperature resistance. It can withstand high temperatures up to 300°C for a short time and can generally be continuously used between 240°C and 260°C. It has remarkable thermal stability. It can work at freezing temperatures without embrittlement and does not melt at high temperatures.

[0016] Compared with the prior art, the utility model provides a high temperature resistant insulated cable, which has the following beneficial effects:

[0017] In the utility model, a temperature measuring and heat dissipation layer is arranged between the insulating filler and the winding layer, and the temperature inside the wire is conducted outwardly by using a heat dissipation frame and a heat dissipation through hole, so as to avoid overheating of the wire and generation of open flames, thereby reducing the safety risk to a certain extent and avoiding potential safety hazards. At the same time, a temperature sensor is arranged on the inner side of the heat dissipation frame to detect the internal temperature of the cable in real time, and the internal temperature is transmitted to the outside in real time through the output unit, so that the staff can perform preventive maintenance on the cable and predict faults. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the temperature measuring and heat dissipation device of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the temperature measuring and heat dissipation device of the utility model;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the outer sheath layer of the utility model.

[0023] Among them: wire-1, insulating filler-2, winding layer-3, temperature-resistant filler-4, outer sheath layer-5, temperature-resistant layer-51, external insulating layer-52, shielding layer-53, temperature measurement and heat dissipation layer-6, heat dissipation frame-61, heat dissipation through hole-62, fixed support frame-63, inner cavity-64, temperature sensor-65, output unit-66, control unit-67, alarm light-68. DETAILED DESCRIPTION

[0024] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In this utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0027] Please refer to Figure 1-2 In the embodiment of the present utility model:

[0028] A high-temperature resistant insulating cable includes a wire 1, an insulating filler 2, a wrapping layer 3, a temperature-resistant filler 4, and an outer sheath layer 5. The outer surface of the wire 1 is fixedly connected with the insulating filler 2, the outer surface of the insulating filler 2 is fixedly connected with the wrapping layer 3, the outer surface of the wrapping layer 3 is fixedly connected with the temperature-resistant filler 4, and the outer surface of the temperature-resistant filler 4 is fixedly connected with the outer sheath layer 5.

[0029] Please refer to Figure 3-4 , in the embodiment of the present utility model: it further includes a temperature measurement and heat dissipation layer 6. The inner surface of the temperature measurement and heat dissipation layer 6 is fixedly connected with the insulating filler 2, the outer surface of the temperature measurement and heat dissipation layer 6 is fixedly connected with the wrapping layer 3. The temperature measurement and heat dissipation layer 6 includes a heat dissipation frame 61, heat dissipation through holes 62, a fixed support frame 63, an inner cavity 64, a temperature sensor 65, an output unit 66, a control unit 67, and an alarm lamp 68. The heat dissipation frame 61 wraps the insulating filler 2, and heat dissipation through holes 62 are arranged on the periphery of the heat dissipation frame 61 in contact with the wrapping layer 3. A fixed support frame 63 is arranged inside the heat dissipation frame 61, and the fixed support frame 63 surrounds to form an inner cavity 64. A temperature sensor 65 is arranged inside the heat dissipation frame 61, the temperature sensor 65 is electrically connected to the control unit 67 through the output unit 66, and the control unit 67 is electrically connected to the alarm lamp 68 through an output circuit. As a further solution of the present utility model, the cross-section of the heat dissipation frame 61 is integrally annular, and the overall cross-section inside the heat dissipation frame 61 is in a "cross" shape.

[0030] Please refer to Figure 1-4 , in the embodiment of the present utility model: multiple groups of the heat dissipation through holes 62 are provided, and the heat dissipation through holes 62 are used to conduct the heat energy generated by the wire 1 outwards. The more through holes there are, the better the heat dissipation effect.

[0031] Please refer to Figure 1-4 , in the embodiment of the present utility model: multiple groups of the inner cavities 64 are provided, and the cross-section is in a "field" shape. The inner cavities 64 are used to place the wire 1.

[0032] See also Figure 1-4 In the embodiment of the utility model: the wire 1 is placed in the inner cavity 64 , and the number of the wires 1 is adapted to the inner cavity 64 .

[0033] See also Figure 5 In the embodiment of the utility model: the outer sheath layer 5 includes a heat-resistant layer 51, an external insulating layer 52, and a shielding layer 53. The outer surface of the heat-resistant layer 51 is fixedly connected to the external insulating layer 52, and the outer surface of the external insulating layer 52 is fixedly connected to the shielding layer 53.

[0034] See also Figure 1-5 In the embodiment of the utility model: the warning light 68 is arranged on the outside of the outer sheath layer 5, and the warning light 68 is used to warn the internal temperature of the cable.

[0035] The heat sink 61 and the fixed support frame 63 are preferably made of tetrafluoroethylene. The operating environment of carbon fiber is often in a low temperature state. Tetrafluoroethylene has good mechanical toughness and excellent heat and low temperature resistance. It can withstand high temperatures up to 300°C for a short time and can generally be used continuously between 240°C and 260°C. It has significant thermal stability. It can work at freezing temperatures without becoming brittle and does not melt at high temperatures.

[0036] Here’s how it works:

[0037] When the high temperature resistant insulated cable is in use, the insulating filler 2 is provided to effectively protect the wire 1 inside the cable, and the first layer of protection is provided to the inside of the cable by providing the wrapping layer 3, the temperature resistant filler 4 and the outer sheath layer 5;

[0038] A temperature measuring and heat dissipation layer 6 is provided in the gap between the insulating filler 2 and the conductor 1, and heat energy is conducted outwardly through the heat dissipation through-holes 62. The gap inside the heat dissipation frame 61 is filled with the insulating filler 2, thereby improving the insulation effect of the cable. A temperature sensor 65 is provided in the gap inside the fixed support frame 63 to detect the internal temperature of the cable in real time, and transmit the internal temperature to the outside in real time through the output unit 66, so as to facilitate the staff to carry out preventive maintenance on the cable and predict faults.

[0039] Compared with the prior art, the utility model provides a high temperature resistant insulated cable, which has the following beneficial effects:

[0040] In the utility model, a temperature measuring and heat dissipation layer 6 is arranged between the insulating filler 2 and the wrapping layer 3, and a heat dissipation frame 61 and a heat dissipation through hole 62 are used to conduct the temperature inside the wire 1 to the outside, so as to avoid overheating of the wire 1 and the generation of open flames, thereby reducing the safety risk to a certain extent and avoiding potential safety hazards. At the same time, a temperature sensor 65 is arranged on the inner side of the heat dissipation frame 61 to detect the internal temperature of the cable in real time, and the internal temperature is transmitted to the outside in real time through the output unit 66, so that the staff can perform preventive maintenance on the cable and predict faults.

[0041] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0042] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0043] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-temperature resistant insulating cable, comprising a conductor (1), an insulating filler (2), a wrapping layer (3), a temperature-resistant filler (4), and an outer sheath layer (5). The outer surface of the conductor (1) is fixedly connected to the insulating filler (2), the outer surface of the insulating filler (2) is fixedly connected to the wrapping layer (3), the outer surface of the wrapping layer (3) is fixedly connected to the temperature-resistant filler (4), and the outer surface of the temperature-resistant filler (4) is fixedly connected to the outer sheath layer (5); Features: It further includes a temperature-measuring and heat-dissipating layer (6). The inner surface of the temperature-measuring and heat-dissipating layer (6) is fixedly connected to the insulating filler (2), and the outer surface of the temperature-measuring and heat-dissipating layer (6) is fixedly connected to the wrapping layer (3). The temperature-measuring and heat-dissipating layer (6) includes a heat-dissipating frame (61), heat-dissipating through-holes (62), a fixed support frame (63), an inner cavity (64), a temperature sensor (65), an output unit (66), a control unit (67), and an alarm lamp (68). The heat-dissipating frame (61) covers the insulating filler (2), and heat-dissipating through-holes (62) are provided on the periphery of the heat-dissipating frame (61) in contact with the wrapping layer (3). A fixed support frame (63) is provided inside the heat-dissipating frame (61), and the fixed support frame (63) encloses to form an inner cavity (64). A temperature sensor (65) is provided inside the heat-dissipating frame (61), the temperature sensor (65) is electrically connected to the control unit (67) through the output unit (66), and the control unit (67) is electrically connected to the alarm lamp (68) through an output circuit.

2. A high temperature resistant insulated cable according to claim 1, characterized in that: The cross-section of the heat-dissipating frame (61) is generally annular as a whole, and the overall cross-section inside the heat-dissipating frame (61) is in a "cross" shape.

3. A high temperature resistant insulated cable according to claim 1, characterized in that: A plurality of groups of the heat-dissipating through-holes (62) are provided.

4. A high temperature resistant insulated cable according to claim 1, characterized in that: A plurality of groups of the inner cavities (64) are provided, and the cross-section is in a "field" shape.

5. A high temperature resistant insulated cable according to claim 4, characterized in that: The conductor (1) is placed in the inner cavity (64), and the number of the conductors (1) is adapted to the inner cavity.

6. A high temperature resistant insulated cable according to claim 1, characterized in that: The outer sheath layer (5) includes a temperature-resistant layer (51), an external insulating layer (52), and a shielding layer (53). The outer surface of the temperature-resistant layer (51) is fixedly connected to the external insulating layer (52), and the outer surface of the external insulating layer (52) is fixedly connected to the shielding layer (53).

7. A high temperature resistant insulated cable according to claim 1, characterized in that: The alarm lamp (68) is provided on the outer side of the outer sheath layer (5).

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