CN113782262A - A weather resistant AHT armored electric heating cable - Google Patents

A weather resistant AHT armored electric heating cable Download PDF

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Publication number
CN113782262A
CN113782262A CN202111090097.6A CN202111090097A CN113782262A CN 113782262 A CN113782262 A CN 113782262A CN 202111090097 A CN202111090097 A CN 202111090097A CN 113782262 A CN113782262 A CN 113782262A
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China
Prior art keywords
fixing
metal wire
heating cable
electric heating
conductive
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Granted
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CN202111090097.6A
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Chinese (zh)
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CN113782262B (en
Inventor
李贻连
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Anbang Electric Group Co ltd
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Anbang Electric Group Co ltd
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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
    • H01B7/08—Flat or ribbon cables
    • H01B7/0807—Twin conductor or cable
    • 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
    • H01B7/02—Disposition of insulation
    • 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
    • H01B7/08—Flat or ribbon cables
    • H01B7/0861—Flat or ribbon cables comprising one or more screens
    • 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
    • H01B7/08—Flat or ribbon cables
    • H01B7/0869—Flat or ribbon cables comprising one or more armouring, tensile- or compression-resistant elements
    • 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
    • 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
    • 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
    • H01B7/22—Metal wires or tapes, e.g. made of steel
    • H01B7/228—Metal braid
    • 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
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • 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
    • H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables
    • H05B3/565—Heating cables flat cables
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Installation Of Indoor Wiring (AREA)

Abstract

本发明涉及一种耐候性AHT铠装电伴热带，包括电伴热带本体，所述电伴热带本体包括第一金属导线和第二金属导线，所述第一金属导线和第二金属导线外侧套设有一导电塑料层，所述导电塑料层为PCT塑料制作的，所述导电塑料层将所述第一金属导线和第二金属导线隔离，所述导电塑料层外侧设置有绝缘层；所述绝缘层外侧设置有网状金属丝层，所述网状金属丝层外侧套设有护套层；所述电伴热带本体上可拆卸连接有固定件，所述固定件既能够用于固定所述电伴热带本体，又能够用于连接两个或多个伴热带本体。本发明提供的耐候性AHT铠装电伴热，带增加了耐候性，使用方便。

Figure 202111090097

The invention relates to a weather-resistant AHT armored electric heating cable, comprising an electric heating cable body, wherein the electric heating cable body includes a first metal wire and a second metal wire, and the first metal wire and the second metal wire are outer sleeves A conductive plastic layer is provided, the conductive plastic layer is made of PCT plastic, the conductive plastic layer isolates the first metal wire and the second metal wire, and an insulating layer is provided outside the conductive plastic layer; The outer side of the layer is provided with a mesh metal wire layer, and the outer side of the mesh metal wire layer is sleeved with a sheath layer; the electric heating cable body is detachably connected with a fixing piece, and the fixing piece can be used to fix the The electric heating cable body can also be used to connect two or more heating cable bodies. The weather-resistant AHT armored electric heat tracing provided by the invention has increased weather resistance and is convenient to use.

Figure 202111090097

Description

Weather-resistant AHT armored electric tracing band
Technical Field
The invention belongs to the technical field of electric tracing bands, and particularly relates to a weather-resistant AHT armored electric tracing band.
Background
The electric tracing band is composed of conductive polymer, two parallel metal wires and an insulating protective layer. The conductive polymer has high positive temperature coefficient characteristic, is connected in parallel, can automatically adjust output power along with the temperature change of a heated system, automatically limits the heating temperature, can be arbitrarily shortened or used for a long time within a certain range, and allows multiple cross overlapping without the worry of high temperature hot spots and burning.
The existing electric tracing band generally has poor weather resistance and is inconvenient to fix, and people are continuously researching on how to solve the problem.
Disclosure of Invention
In view of the above-mentioned problems in the prior art, the present invention provides a weather-resistant AHT armored electrical tracing band to solve at least one of the above-mentioned technical problems.
In order to achieve the above object, the present invention provides a technical solution as follows:
a weather-resistant AHT armored electric tracing band comprises an electric tracing band body, wherein the electric tracing band body comprises a first metal wire and a second metal wire, a conductive plastic layer is sleeved on the outer sides of the first metal wire and the second metal wire and made of PCT plastic, the first metal wire and the second metal wire are isolated by the conductive plastic layer, and an insulating layer is arranged on the outer side of the conductive plastic layer; a reticular metal wire layer is arranged on the outer side of the insulating layer, and a sheath layer is sleeved on the outer side of the reticular metal wire layer; the electric tracing band is characterized in that a fixing piece is detachably connected to the electric tracing band body, and the fixing piece can be used for fixing the electric tracing band body and can be used for connecting two or more electric tracing band bodies.
Preferably, the insulating layer is made of one or more materials selected from modified polyolefin, flame-retardant polyolefin, fluorine-containing polyolefin and perfluorinated material.
Preferably, the sheath layer is made of one or more of modified polyolefin, flame-retardant polyolefin and perfluoro material.
Preferably, a heat preservation sheet is arranged between the sheath layer and the reticular metal wire layer, and the heat preservation sheet is positioned on one side of a plane formed by the first metal wire and the second metal wire.
Preferably, the fixing part comprises a first fixing part and a second fixing part; first fixing parts are arranged on two sides of the first fixing part, first fixing holes are formed in the first fixing parts, a first groove is formed in the first fixing part and located between the first fixing holes in the two sides, and fixing grooves are formed in the first groove; second fixing parts are arranged on two sides of the second fixing part, second fixing holes are formed in the second fixing parts, and second grooves are formed in the positions, located between the second fixing holes on the two sides, of the second fixing part; the first fixing piece and the second fixing piece can be fixed into a whole through the first fixing hole and the second fixing hole on two sides, and in the state, the first groove and the second groove form a through hole; a metal wire connecting piece is arranged in the through hole and comprises an outer frame, a partition plate is arranged in the outer frame, and wiring pieces are fixed on two sides of the partition plate; the wiring piece comprises two symmetrically arranged conducting strips, the conducting strips are in a major arc shape, and two ends of the two conducting strips are correspondingly connected, so that two mutually communicated spaces are formed inside the connecting piece; a plurality of elastic sheets are circumferentially arranged on the conductive sheet and comprise a connecting section and a fixing section, one end of the connecting section is connected with the conductive sheet, and the other end of the connecting section is connected with the fixing section; the connecting section and the fixed section are inclined relative to the conducting plate, the distance from one end of the elastic sheet connected with the conducting plate to the arc center of the conducting plate is greater than the distance from the other end of the elastic sheet connected with the conducting plate to the arc center of the conducting plate, and the included angle of the connecting section relative to the plane of the conducting plate is smaller than the included angle of the fixed section relative to the plane of the conducting plate; in each wiring piece, the elastic sheets on the two conducting sheets are positioned at two sides of the conducting sheets; a first cover plate is arranged at one end of the outer frame, the first cover plate covers a pair of conducting strips on two sides of the partition plate, a first threaded hole is formed in each conducting strip on the first cover plate, which corresponds to two sides of the partition plate, a first screw is connected to each first threaded hole in a threaded manner, a second cover plate is arranged at the other end of the outer frame, the second cover plate covers the other pair of conducting strips on two sides of the partition plate, a second threaded hole is formed in each conducting strip on the second cover plate, which corresponds to two sides of the partition plate, and a second screw is connected to each second threaded hole in a threaded manner; and the outer frame is provided with a fixed block matched with the fixed groove.
Preferably, the first screw and the second screw are screw screws.
Preferably, the outer frame and the partition plate are made of insulating materials or made of metal materials, and the insulating layers are arranged on the rear surfaces of the outer frame and the partition plate; the conducting strips and the elastic sheets are made of conducting materials.
Preferably, the conducting strips and the elastic pieces are made of metal materials.
The weather-resistant AHT armored electric tracing band provided by the invention has the following advantages:
1. the weather resistance of the heat tracing band is increased: the netted metal wire layer and the sheath layer are arranged outside the insulating layer, so that the strength of the electric tracing band is increased, the metal wire net can form interference of shielding signals and a magnetic field and prevent the interference of the electric tracing band with external signals and the magnetic field during working, the insulating layer and the sheath layer are made of modified polyolefin, flame-retardant polyolefin and the like, and the weather resistance of the electric tracing band is greatly increased.
2. The fixing piece can be used for fixing the electric tracing band body and can be used for connecting two or more tracing band bodies, and the use is convenient.
Drawings
FIG. 1 is one of the structural schematic views of a weatherable AHT armored electrical tracing band of the present invention;
FIG. 2 is a second schematic structural view of the weatherable AHT armored electrical tracing band of the present invention;
FIG. 3 is a cross-sectional view of the fastener of FIG. 2;
FIG. 4 is a schematic cross-sectional view of the first fixing member;
FIG. 5 is a schematic cross-sectional view of the second fixing member;
FIG. 6 is a schematic cross-sectional view of a metal conductive connecting member;
FIG. 7 is a top view of a metal conductive connector;
FIG. 8 is a bottom view of a metal conductive connector;
FIG. 9 is a third schematic structural view of a weatherable AHT armored electrical tracing band of the present invention;
reference numerals in the figures; the heat insulation cable comprises a first metal wire 1, a second metal wire 2, a conductive plastic layer 3, an insulating layer 4, a net-shaped metal wire layer 5, a sheath layer 6, an electric tracing band body 7, a fixing piece 8, a heat insulation sheet 9, a first fixing piece 10, a second fixing piece 11, a first fixing part 12, a first fixing hole 13, a first groove 14, a second fixing part 15, a second fixing hole 16, a second groove 17, a fixing groove 18, an outer frame 19, a partition plate 20, a conductive sheet 21, an elastic sheet 22, a connecting section 23, a fixing section 24, a first cover plate 25, a first screw 26, a second cover plate 27, a second screw 28 and a fixing block 29.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. 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.
Embodiment 1, the present invention provides a weather-resistant AHT armored electric tracing band, which, referring to fig. 1 to 8, includes an electric tracing band body 7, the electric tracing band body includes a first metal wire 1 and a second metal wire 2, in this embodiment, the first metal wire and the second metal wire use copper wires, the outer sides of the first metal wire and the second metal wire are sleeved with an electrically conductive plastic layer 3, in this embodiment, the electrically conductive plastic layer is preferably made of PCT plastic (also referred to as PTC electrically conductive plastic), the first metal wire and the second metal wire are located at two ends of the electrically conductive plastic layer when being made, thus, the middle part of the electrically conductive plastic layer separates the first metal wire and the second metal wire, and the outer side of the electrically conductive plastic layer is provided with an insulating layer 4; the insulating layer is generally made of one or more materials selected from modified polyolefin, flame-retardant polyolefin, fluorine-containing polyolefin and a perfluorinated material, the net-shaped metal wire layer can be made of aluminum magnesium alloy wires or tinned copper wires, the covering density is 80%, and the sheath layer is generally made of one or more materials selected from modified polyolefin, flame-retardant polyolefin and a perfluorinated material; the electric tracing band body is detachably connected with a fixing piece 8, and the fixing piece comprises a first fixing piece 10 and a second fixing piece 11; first fixing parts 12 are arranged on two sides of the first fixing part, each first fixing part is provided with a first fixing hole 13, a first groove 14 is arranged between the two first fixing holes on the first fixing part, and a fixing groove 18 is arranged in each first groove; two sides of the second fixing part are provided with second fixing parts 15, each second fixing part is provided with a second fixing hole 16, and a second groove 17 is arranged between the two second fixing holes on the second fixing part; the first fixing piece and the second fixing piece can be fixed into a whole through the first fixing hole and the second fixing hole on two sides, generally, the first fixing piece and the second fixing piece can be fixed into a whole through bolts, and the first groove and the second groove form a through hole under the condition that the first fixing piece and the second fixing piece are fixed into a whole; the through hole is internally provided with a metal wire connecting piece, the metal wire connecting piece comprises an outer frame 19, a partition plate 20 is arranged in the outer frame, and wiring pieces are fixed on two sides of the partition plate, wherein the outer frame and the partition plate are made of insulating materials or the rear surfaces of the outer frame and the partition plate are provided with insulating layers, so that the outer frame, the partition plate and the wiring pieces are electrically isolated; the wiring piece comprises two symmetrically arranged conducting strips 21, the conducting strips are in a major arc shape, and two ends of the two conducting strips are correspondingly connected, so that two mutually communicated spaces are formed inside the connecting piece; a plurality of elastic sheets 22 are circumferentially arranged on the conductive sheet and comprise a connecting section 23 and a fixing section 24, one end of the connecting section is connected with the conductive sheet, and the other end of the connecting section is connected with the fixing section; the connecting section and the fixing section are inclined relative to the conducting strip, the distance from one end of the elastic sheet connected with the conducting strip to the arc center of the conducting strip is greater than the distance from the other end of the elastic sheet connected with the conducting strip to the arc center of the conducting strip, and in the application, the arc center is the circle center of a circle to which the arc belongs; the included angle of the connecting section relative to the plane of the conducting strip is smaller than that of the fixed section relative to the plane of the conducting strip, so that a bend bending outwards is formed at the connecting position of the fixed section and the connecting section; in each wiring piece, the elastic sheets on the two conducting sheets are positioned at two sides of the conducting sheet, and only the elastic sheet at the upper side of the conducting sheet is shown in fig. 3; a first cover plate 25 is arranged at one end of the outer frame, the first cover plate covers a pair of conducting strips at two sides of the partition plate, the pair of conducting strips on the first cover plate corresponding to two sides of the partition plate are respectively provided with a first threaded hole, the first threaded hole is in threaded connection with a first screw 26, in the embodiment, the first screw can be replaced by a bolt, so that the other pair of conducting strips is not covered and can be used for penetrating a metal wire, the other end of the outer frame is provided with a second cover plate 27, the second cover plate covers the other pair of conducting strips at two sides of the partition plate, the other pair of conducting strips on the second cover plate corresponding to two sides of the partition plate are respectively provided with a second threaded hole, and the second threaded hole is in threaded connection with a second screw 28; the outer frame is provided with a fixing block 29 matched with the fixing groove, so that the fixing block can be clamped in the fixing groove during fixing, and the outer frame can be ensured not to slide relative to the through hole in a mode of directly clamping the outer frame by friction force. In order to prevent the screw from occupying the space, in the embodiment, the first screw and the second screw use a machine-meter screw, which may also be called a jackscrew, a headless screw, or the like.
The weather-resistant AHT armored electric tracing band has the following advantages:
1. the weather resistance of the heat tracing band is increased: the mesh-shaped metal wire layer and the sheath layer are arranged outside the insulating layer, so that the strength of the electric tracing band is increased, the metal wire mesh can form interference of shielding signals and a magnetic field and prevent the interference of the electric tracing band with external signals and the magnetic field during working, the insulating layer and the sheath layer are made of improved polyolefin, flame-retardant polyolefin and the like, and the weather resistance of the electric tracing band is greatly increased;
2. the mounting can enough be used for fixing the electric tracing band body can be used for connecting two or more tracing band bodies again, convenient to use: when the heat tracing band body is fixed, only the first fixing piece and the second fixing piece are used, bolts, screws and the like are matched with corresponding fixing holes to fix the heat tracing band body on a pipeline or other heat-insulating base bodies and press the heat tracing band body, so that the heat tracing band body passes through the corresponding groove;
when the two heat tracing bands are connected, the connecting ends of the two heat tracing bands are stripped, so that a first metal lead and a second metal lead are exposed, a metal lead connecting piece is clamped in the through hole, then a first fixing piece and a second fixing piece are pinched, the first metal lead and the second metal lead exposed by one of the heat tracing bands are inserted into a pair of conducting strips through one end of the outer frame and penetrate out through the threaded holes, then the end parts of the two metal leads are bent or twisted for a circle to form a blocking part, the metal leads are pulled down to deform the conducting strips, the fixing sections are gradually horizontal, the connecting sections are gradually vertically close to the leads, corresponding screws are screwed on corresponding threaded holes to abut against the blocking part, the blocking part cannot rebound, and thus one heat tracing band is connected; similarly, the first metal wire and the second metal wire exposed from the other heat tracing band are inserted into the other pair of conducting strips through one end of the outer frame and penetrate through the threaded holes, then the end parts of the two metal wires are bent or twisted for a circle to form a blocking part, the metal wires are pulled down to enable the conducting strips to be deformed, the fixed section is gradually horizontal, the connecting section is gradually vertically close to the wires, corresponding screws are screwed on the corresponding threaded holes to prop the blocking part, so that the blocking part cannot be rebounded, and the other heat tracing band is connected; the wires of the two heat tracing bands form an electric connection structure; and finally, fixing the fixing piece on the pipeline or other heat-insulating base bodies by using bolts, screws and the like matched with corresponding fixing holes.
3. The fixing piece is ingenious in design, the elastic piece is designed in a two-section mode, so that when the elastic piece is stressed, one section of the elastic piece gradually moves close to the horizontal direction, and the other section of the elastic piece gradually moves vertically, so that the connecting section can be finally attached to the metal wire, the contact area with the metal wire is large, and the electric conduction effect is good; the elastic sheet is circumferentially designed, so that the contact with the metal wire is more uniform, the force perpendicular to the elastic sheet is not needed for limiting during limiting, and the metal wire is not damaged; when the connection relation of the two heat tracing bands is removed, the corresponding screws can be screwed off, the heat tracing bands can be conveniently taken down by cutting off the blocking parts of the metal leads, and the heat tracing bands and the fixing piece can be repeatedly used; the conducting strip is designed in a shape similar to a figure 8, the overall thickness of the fixing piece is reduced, and the threading of the metal conducting wire cannot be influenced when the fixing piece is connected with the two heat tracing bands.
Certainly can also set up three or more arc shell fragment and realize the connection of three or more electric tracing bands, as an implementation mode, can also only set up a set of conducting strip, the conducting strip sets up to circular, frame one end sets up apron and screw hole, and two lines are worn to a conducting strip when using like this, and this design can be longer with two sections length preparation of shell fragment, and two sections deformation angle diminishes during the atress, and the flexure strip is more easy reconversion after demolising the tracing band.
Embodiment 2, refer to fig. 9, and embodiment 2 is a further improvement on embodiment 1, and the specific improvement is that a heat preservation sheet 9 is arranged between the sheath layer and the mesh-shaped metal wire layer, the heat preservation sheet is positioned on one side of a plane formed by the first metal wire and the second metal wire, and the side of the structure, which is not provided with the heat preservation sheet, is attached to a pipeline or other heat preservation base body when in use, so that heat loss can be reduced, and energy can be saved.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (8)

1.一种耐候性AHT铠装电伴热带，包括电伴热带本体(7)，所述电伴热带本体包括第一金属导线(1)和第二金属导线(2)，所述第一金属导线和第二金属导线外侧套设有一导电塑料层(3)，所述导电塑料层为PCT塑料制作的，所述导电塑料层将所述第一金属导线和第二金属导线隔离，所述导电塑料层外侧设置有绝缘层(4)；其特征在于，1. A weather-resistant AHT armored electric heating cable, comprising an electric heating cable body (7), the electric heating cable body comprising a first metal wire (1) and a second metal wire (2), the first metal wire A conductive plastic layer (3) is sleeved on the outside of the wire and the second metal wire, the conductive plastic layer is made of PCT plastic, the conductive plastic layer isolates the first metal wire and the second metal wire, and the conductive plastic layer An insulating layer (4) is arranged on the outside of the plastic layer; it is characterized in that, 所述绝缘层外侧设置有网状金属丝层(5)，所述网状金属丝层外侧套设有护套层(6)；A mesh metal wire layer (5) is provided on the outside of the insulating layer, and a sheath layer (6) is sleeved on the outside of the mesh metal wire layer; 所述电伴热带本体上可拆卸连接有固定件(8)，所述固定件既能够用于固定所述电伴热带本体，又能够用于连接两个或多个伴热带本体。A fixing member (8) is detachably connected to the electric heating cable body, and the fixing member can not only be used to fix the electric heating cable body, but also can be used to connect two or more heating cable bodies. 2.根据权利要求1所述的一种耐候性AHT铠装电伴热带，其特征在于，所述绝缘层为改良性聚烯烃、阻燃聚烯烃、含氟聚烯烃和全氟材料中的一种或多种材料制作的。2. A weather-resistant AHT armored electric heating cable according to claim 1, wherein the insulating layer is one of modified polyolefin, flame-retardant polyolefin, fluorine-containing polyolefin and perfluorinated material. of one or more materials. 3.根据权利要求1所述的一种耐候性AHT铠装电伴热带，其特征在于，所述护套层为改良性聚烯烃、阻燃聚烯烃和全氟材料中的一种或多种制作的。3. A weather-resistant AHT armored electric heating cable according to claim 1, wherein the sheath layer is one or more of modified polyolefin, flame-retardant polyolefin and perfluorinated material maded. 4.根据权利要求1所述的一种耐候性AHT铠装电伴热带，其特征在于，所述护套层和所述网状金属丝层之间设置有保温片(9)，所述保温片位于所述第一金属导线和第二金属导线形成的平面的一侧。4. A weather-resistant AHT armored electric heating cable according to claim 1, characterized in that, a thermal insulation sheet (9) is arranged between the sheath layer and the mesh metal wire layer, and the thermal insulation The sheet is located on one side of the plane formed by the first metal wire and the second metal wire. 5.根据权利要求1所述的一种耐候性AHT铠装电伴热带，其特征在于，所述固定件包括第一固定件(10)和第二固定件(11)；5. A weather-resistant AHT armored electric heating cable according to claim 1, characterized in that the fixing member comprises a first fixing member (10) and a second fixing member (11); 所述第一固定件的两侧设置有第一固定部(12)，所述第一固定部上设置有第一固定孔(13)，所述第一固定件上位于两侧的所述第一固定孔之间的位置设置有第一凹槽(14)，所述第一凹槽内设置有固定槽(18)；Both sides of the first fixing member are provided with a first fixing portion (12), the first fixing portion is provided with a first fixing hole (13), and the first fixing member located on both sides of the first fixing member is provided with a first fixing hole (13). A first groove (14) is provided at a position between the fixing holes, and a fixing groove (18) is provided in the first groove; 所述第二固定件的两侧设置有第二固定部(15)，所述第二固定部上设置有第二固定孔(16)，所述第二固定件上位于两侧的所述第二固定孔之间的位置设置有第二凹槽(17)；Two sides of the second fixing member are provided with second fixing portions (15), second fixing holes (16) are arranged on the second fixing portion, and the first fixing portions on both sides of the second fixing member are provided. The position between the two fixing holes is provided with a second groove (17); 所述第一固定件和第二固定件能够通过两侧的第一固定孔和第二固定孔固定为一体，在此状态下，所述第一凹槽和第二凹槽形成一通孔；The first fixing member and the second fixing member can be fixed as a whole through the first fixing hole and the second fixing hole on both sides, and in this state, the first groove and the second groove form a through hole; 所述通孔内设置有金属导线连接件，所述金属导线连接件包括外框(19)，所述外框内设置有隔板(20)，所述隔板的两侧均固定有接线件；A metal wire connecting piece is arranged in the through hole, the metal wire connecting piece comprises an outer frame (19), a partition plate (20) is arranged in the outer frame, and wiring pieces are fixed on both sides of the partition plate ; 所述接线件包括两个对称设置的导电片(21)，所述导电片的形状为优弧，两个导电片的两端对应连接，使得连接件的内部形成两个相互连通的空间；所述导电片上周向设置有多个弹片(22)，所述弹片包括连接段(23)和固定段(24)，所述连接段的一端与所述导电片连接，另一端与所述固定段连接；所述连接段和固定段相对于所述导电片均为倾斜的，所述弹片与导电片连接的一端至所述导电片的弧心的距离大于另一端至所述导电片的弧心的距离，所述连接段相对于所述导电片所在平面的夹角小于所述固定段相对于所述导电片所在平面的夹角；The wiring piece includes two symmetrically arranged conductive sheets (21), the shape of the conductive sheets is an arc, and two ends of the two conductive sheets are connected correspondingly, so that two interconnected spaces are formed inside the connecting piece; The conductive sheet is provided with a plurality of elastic sheets (22) in the circumferential direction, the elastic sheets include a connecting segment (23) and a fixing segment (24), one end of the connecting segment is connected with the conducting sheet, and the other end is connected with the fixing segment The connecting segment and the fixing segment are both inclined relative to the conductive sheet, and the distance from one end of the elastic sheet connected to the conductive sheet to the arc center of the conductive sheet is greater than the distance from the other end to the arc of the conductive sheet distance from the center, the included angle of the connecting segment relative to the plane where the conductive sheet is located is smaller than the included angle of the fixed segment relative to the plane where the conductive sheet is located; 每个所述接线件中，两个所述导电片上的弹片位于所述导电片的两侧；In each of the wiring pieces, the elastic pieces on the two conductive sheets are located on both sides of the conductive sheets; 所述外框的一端设置有第一盖板(25)，所述第一盖板遮盖住隔板两侧的一对导电片，所述第一盖板上对应隔板两侧的一对导电片均设置有第一螺纹孔，所述第一螺纹孔上螺纹连接有第一螺丝(26)，所述外框的另一端设置有第二盖板(27)，所述第二盖板遮盖住隔板两侧的另一对导电片，所述第二盖板上对应隔板两侧的另一对导电片均设置有第二螺纹孔，所述第二螺纹孔上螺纹连接有第二螺丝(28)；One end of the outer frame is provided with a first cover plate (25), the first cover plate covers a pair of conductive sheets on both sides of the partition plate, and the first cover plate corresponds to a pair of conductive plates on both sides of the partition plate Each plate is provided with a first threaded hole, a first screw (26) is threadedly connected to the first threaded hole, and the other end of the outer frame is provided with a second cover plate (27), which covers the The other pair of conductive sheets on both sides of the partition plate, the other pair of conductive sheets on the two sides of the second cover plate corresponding to the two sides of the partition plate are provided with second threaded holes, and the second threaded holes are threadedly connected with second threaded holes. screw(28); 所述外框上设置有与所述固定槽配合的固定块(29)。The outer frame is provided with a fixing block (29) matched with the fixing groove. 6.根据权利要求5所述的一种耐候性AHT铠装电伴热带，其特征在于，所述第一螺丝和第二螺丝为机米螺丝。6 . The weather-resistant AHT armored electric heating cable according to claim 5 , wherein the first screw and the second screw are machine screws. 7 . 7.根据权利要求5所述的一种耐候性AHT铠装电伴热带，其特征在于，所述外框和隔板使用绝缘材料制作或者使用金属材料制作后表面设置绝缘层；7. a kind of weather-resistant AHT armored electric heating cable according to claim 5, is characterized in that, described outer frame and clapboard use insulating material to make or use metal material to make back surface and be provided with insulating layer; 所述导电片和弹片使用导电材料制作。The conductive sheet and the elastic sheet are made of conductive materials. 8.根据权利要求7所述的一种耐候性AHT铠装电伴热带，其特征在于，8. a kind of weather-resistant AHT armored electric heating cable according to claim 7, is characterized in that, 所述导电片和弹片使用金属材料制作。The conductive sheet and the elastic sheet are made of metal materials.
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