CN217902770U - Low-temperature-resistant high-frequency signal transmission cable for equipment - Google Patents

Abstract

The utility model discloses an equipment is with low temperature resistant high frequency signal transmission cable, including signal transmission sinle silk, internal insulation layer, internal shield layer, the signal transmission sinle silk is all established on fixed inner core, and has wrapped up internal insulation layer, internal shield layer in proper order in each signal transmission sinle silk outside, is provided with the insulating sheath who wraps up each signal transmission sinle silk in fixed inner core outside, the inside of fixed inner core sets up the ground wire, and the inside and outside of fixed inner core is provided with the card groove of fitting with the signal transmission sinle silk the insulating sheath's outside sets gradually heat preservation, insulating layer, fire-retardant resistant oil reservoir. The utility model can not cause the signal transmission wire core to shift in the inner part due to distortion in the using process, and can carry out multiple heat preservation on the signal transmission wire core, thereby effectively improving the cold resistance of the cable; the multiple shielding solves the internal and external interference signals, and the stable and reliable transmission performance of the whole cable is enhanced.

Description

Low-temperature-resistant high-frequency signal transmission cable for equipment

Technical Field

The utility model belongs to the technical field of the signal transmission cable, especially, relate to a low temperature resistant high frequency signal transmission cable is used to equipment.

Background

Along with the progress of modern society, the life and activity fields of people are gradually expanded, application cables in the life and activity fields also become necessary means for people to live, when equipment is used in some low-temperature and high-cold environments, the signal transmission cable for the equipment is required to have certain strength and cold resistance, otherwise, the signal transmission cable is possibly unstable when used in high-cold areas, so that the working state of the equipment is influenced and the operation is unstable; the existing signal transmission cable is not strong in cold resistance and difficult to meet the use requirement of equipment; therefore, improvements are now needed in view of the current situation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a low temperature resistant high frequency signal transmission cable is used to equipment.

The utility model discloses a following technical scheme realizes: including signal transmission sinle silk, internal insulation layer, internal shield layer, the signal transmission sinle silk all is established on fixed inner core, and has wrapped up internal insulation layer, internal shield layer in proper order in each signal transmission sinle silk outside, is provided with the insulating sheath who wraps up each signal transmission sinle silk in fixed inner core outside, the inside of fixed inner core sets up the ground wire, and the inside and outside of fixed inner core is provided with the card groove of fitting with the signal transmission sinle silk the outside of insulating sheath sets gradually heat preservation, insulating layer, fire-retardant resistant oil reservoir, wherein insulating sheath's outside axial all is provided with the wave filter the fire-retardant oil reservoir outside is equipped with leaded light insulating sheath be provided with electroluminescent material coating between fire-retardant resistant oil reservoir and the leaded light insulating sheath.

Furthermore, the filter is a magnetic ring which is sleeved on the outer wall of the insulating sheath.

Furthermore, the thickness of the inner insulating layer is 0.1-0.2mm, the thickness of the insulating sheath is 0.1-0.2mm, the thickness of the heat preservation layer is 0.4-0.6mm, the thickness of the heat insulation layer is 0.3-0.5mm, and the thickness of the coating of the electroluminescent material is 0.1-0.2mm.

The utility model has the advantages that: the utility model discloses a fixed inner core cooperation insulating sheath can be convenient for install the cable core, and can guarantee that signal transmission sinle silk is fixed in the use, can not lead to all signal transmission sinle silks to be fused because single overload fusing, and can not lead to signal transmission sinle silk to shift in the inside because of the distortion in the use, and the setting of heat preservation and heater, insulating layer keeps warm to signal transmission sinle silk, has effectively improved cable cold resistance; the internal shielding layer, the filter and the external shielding layer can effectively solve internal and external interference signals, the transmission stability and reliability of the whole cable are enhanced, and the flame-retardant oil-resistant layer can effectively avoid the cable from being polluted and decomposed by oil liquid for equipment to cause the cable damage.

Drawings

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

reference numbers in the figures: 1-fixed inner core, 2-ground wire, 3-signal transmission wire core, 4-inner insulating layer, 5-inner shielding layer, 6-insulating sheath, 7-filter, 8-insulating layer, 9-heating wire, 10-insulating layer, 11-outer shielding layer, 12-armor layer, 13-flame-retardant oil-resistant layer, 14-electroluminescent material coating and 15-light-conducting insulating sheath.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description is provided with reference to the accompanying drawings.

The low-temperature-resistant high-frequency signal transmission cable for the equipment shown in fig. 1 comprises signal transmission wire cores 3, an inner insulating layer 4 and an inner shielding layer 5, wherein the signal transmission wire cores 3 are all arranged on a fixed inner core 1, the outer parts of the signal transmission wire cores 3 are sequentially wrapped with the inner insulating layer 4 and the inner shielding layer 5, an insulating sheath 6 wrapping the signal transmission wire cores 3 is arranged outside the fixed inner core 1, a ground wire 2 is arranged inside the fixed inner core 1, clamping grooves matched with the signal transmission wire cores 3 are arranged inside and outside the fixed inner core 1, a heat insulating layer 8, a heat insulating layer 10 and a flame-retardant oil-resistant layer 13 are sequentially arranged outside the insulating sheath 6, a filter 7 is axially arranged outside the insulating sheath 6, a light-guide insulating sheath 15 is arranged outside the flame-retardant oil-resistant layer 13, an electroluminescent material coating 14 is arranged between the flame-retardant oil-resistant layer 13 and the light-guide insulating sheath 15, and the electroluminescent material coating 14 can detect whether electric leakage or whether electric leakage of the cable is electrified, can emit light when electricity is detected, and can be displayed through the light-guide insulating sheath 15, so as to play a warning function and be convenient for maintenance.

The inner shielding layer 5 is made of copper foil paper or lead foil paper, has good flexibility and is beneficial to wiring and storage of the cable in the using process.

The filter 7 is a magnetic ring which is sleeved on the outer wall of the insulating sheath 6, so that electromagnetic signal interference is effectively filtered, and stable signal transmission is ensured.

The heat preservation 8 in all be equipped with heater 9, just heater 9 has at least two, guarantees the problem of cable under low temperature environment, solves the unstable problem of cable operating condition under the low temperature environment.

The thermal-insulating layer 10 is made of aerogel or foam, plays a role in shock resistance and buffering while preserving heat, and has flexibility.

An outer shielding layer 11, a wrapping tape and an armor layer 12 are arranged between the heat insulation layer 10 and the flame-retardant oil-resistant layer 13.

The inner insulating layer has the thickness of 0.1-0.2mm at the temperature of 4 degrees, the insulating sheath 6 has the thickness of 0.1-0.2mm, the insulating layer 8 has the thickness of 0.4-0.6mm, the heat insulating layer 10 has the thickness of 0.3-0.5mm, and the electroluminescent material coating 14 has the thickness of 0.1-0.2mm, so that the protective strength and the cold resistance of the whole cable can be improved.

The outer shielding layer 11 is lead foil paper, so that the shielding efficiency is improved, and the external electromagnetic interference is isolated.

The depth of the clamping groove is not less than the radius of the signal transmission wire core 3, so that the signal transmission wire core 3 can be fixed on the fixed inner core 1.

Claims (7)

1. The utility model provides a low temperature resistant high frequency signal transmission cable for equipment which characterized in that: the novel cable comprises signal transmission cable cores (3), an inner insulating layer (4) and an inner shielding layer (5), wherein the signal transmission cable cores (3) are arranged on a fixed inner core (1), the outer portions of the signal transmission cable cores (3) are sequentially wrapped with the inner insulating layer (4) and the inner shielding layer (5), an insulating sheath (6) wrapping the signal transmission cable cores (3) is arranged outside the fixed inner core (1), a ground wire (2) is arranged inside the fixed inner core (1), a clamping groove matched with the signal transmission cable cores (3) is formed in the inner portion and the outer portion of the fixed inner core (1), a heat insulation layer (8), a heat insulation layer (10) and a flame-retardant oil-resistant layer (13) are sequentially arranged outside the insulating sheath (6) in the axial direction, a filter (7) is arranged on the outer portion of the flame-retardant oil-resistant layer (13), a light guide insulating sheath (15) is arranged outside the flame-retardant oil-resistant layer (13), and an electroluminescent material coating (14) is arranged between the flame-retardant oil-resistant layer (13) and the light guide insulating sheath (15).

2. The low temperature-resistant high frequency signal transmission cable for equipment according to claim 1, characterized in that: the filter (7) is a magnetic ring which is sleeved on the outer wall of the insulating sheath (6).

3. The low temperature-resistant high frequency signal transmission cable for equipment according to claim 1, characterized in that: the heat-insulating layer (8) is internally provided with at least two heating wires (9), and the number of the heating wires (9) is at least two.

4. The low temperature-resistant high frequency signal transmission cable for equipment according to claim 1, characterized in that: the heat insulation layer (10) is made of aerogel or foam.

5. The low temperature-resistant high frequency signal transmission cable for equipment according to claim 1, characterized in that: an outer shielding layer (11), a belting and an armor layer (12) are arranged between the heat insulation layer (10) and the flame-retardant oil-resistant layer (13).

6. The low temperature-resistant high frequency signal transmission cable for equipment according to claim 5, characterized in that: the outer shielding layer (11) is lead foil paper.

7. The low temperature-resistant high frequency signal transmission cable for equipment according to claim 1, characterized in that: the temperature of the inner insulating layer (4) is 0.1-0.2mm, the thickness of the insulating sheath (6) is 0.1-0.2mm, the thickness of the insulating layer (8) is 0.4-0.6mm, the thickness of the heat insulating layer (10) is 0.3-0.5mm, and the thickness of the electroluminescent material coating (14) is 0.1-0.2mm.

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