CN118039222A - Aluminum alloy conductor energy storage battery connecting cable - Google Patents
Aluminum alloy conductor energy storage battery connecting cable Download PDFInfo
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- CN118039222A CN118039222A CN202410217773.9A CN202410217773A CN118039222A CN 118039222 A CN118039222 A CN 118039222A CN 202410217773 A CN202410217773 A CN 202410217773A CN 118039222 A CN118039222 A CN 118039222A
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- storage battery
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- 239000004020 conductor Substances 0.000 title claims abstract description 80
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 65
- 238000004146 energy storage Methods 0.000 title claims abstract description 36
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 30
- 229910052802 copper Inorganic materials 0.000 claims description 30
- 239000010949 copper Substances 0.000 claims description 30
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 11
- 229920002530 polyetherether ketone Polymers 0.000 claims description 11
- 239000003063 flame retardant Substances 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 3
- 239000000463 material Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01B7/0009—Details relating to the conductive cores
-
- 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
- H01B7/17—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
- H01B7/1895—Internal space filling-up means
-
- 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
- H01B7/2806—Protection against damage caused by corrosion
-
- 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
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into 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
- H01B7/17—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
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- 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
-
- 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
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of energy storage cables, in particular to an aluminum alloy conductor energy storage battery connecting cable which comprises a conductor formed by aluminum alloy strands and tensile fibers, a high-temperature-resistant wrapping belt wrapped on the outer layer of the conductor, and an insulating layer extruded on the outer layer of the high-temperature-resistant wrapping belt, wherein the tensile fibers are uniformly filled in gaps among the aluminum alloy strands on the outer layer of the conductor. According to the aluminum alloy conductor energy storage battery connecting cable, the aluminum alloy conductor is adopted, so that the material cost of the energy storage battery connecting cable can be effectively reduced, and the wide popularization of products is facilitated; the aramid fiber tensile fiber is filled in the outer layer of the conductor, so that the tensile force resistance of the conductor in the manufacturing and using processes can be increased, and the risk that the aluminum alloy conductor is easily pulled and broken is avoided.
Description
Technical Field
The invention relates to the technical field of energy storage cables, in particular to an aluminum alloy conductor energy storage battery connecting cable.
Background
Electrical energy storage systems are processes in which electrical energy is stored by a medium or device and released when needed, with electrochemical energy storage being the current most potential technology route, the primary embodiment of which is battery energy storage. The energy storage battery connecting cable is mainly used for electric power connection among battery modules, battery clusters and a junction box or between the battery clusters and an energy storage converter at the direct current side in a battery energy storage system. As a main means for peak clipping and valley filling of a power grid, improving the quality of electric energy and containing clean electric energy, a battery energy storage system tends to be greatly developed, and the market demand of an energy storage battery connecting cable is also increased.
At present, the known energy storage battery connecting cable mainly takes copper conductors, heat-resistant 90 ℃ PVC (polyvinyl chloride) insulation or heat-resistant 125 ℃ low smoke zero halogen flame retardant XLPO (crosslinked polyolefin) insulation as main materials, the cable has high dependence on copper materials, is unfavorable for reducing the material cost of the cable, is unfavorable for the wide popularization of products, and has high heating and short circuit risks when the temperature resistance level of the cable is 90 ℃ and 125 ℃ and is suitable for current overload and circuit faults.
The energy storage battery connection cable is required to be flexible and easy to install, so that the diameter of a metal single wire constituting a conductor is small and is only about 0.5 mm. The aluminum alloy conductor has poorer tensile property than the copper conductor and higher resistivity than the copper conductor, and the aluminum alloy conductor is adopted to manufacture the energy storage battery connecting cable, so that the process difficulty is high and the heat resistance requirement on the insulating material is high, and therefore, the aluminum alloy conductor cannot be widely applied to the energy storage battery connecting cable.
Disclosure of Invention
The invention aims to solve the technical problems that: the aluminum alloy conductor has poorer tensile property than the copper conductor and higher resistivity than the copper conductor, and the aluminum alloy conductor is adopted to manufacture the energy storage battery connecting cable, so that the process difficulty is high and the heat resistance requirement on the insulating material is high, and therefore, the aluminum alloy conductor cannot be widely applied to the energy storage battery connecting cable.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an aluminum alloy conductor energy storage battery connecting cable, includes the conductor that comprises aluminum alloy strand wires and tensile fiber, around wrapping the outer high temperature resistant band of conductor and crowded package at the outer insulating layer of high temperature resistant band, tensile fiber evenly fills the clearance at the outer aluminum alloy strand wires of conductor, with outer aluminum alloy strand wires together syntropy twisted again, the conductor after twisted again wraps one deck high temperature resistant package area, and the package direction is opposite with outer aluminum alloy strand wires twisted again, tensile fiber internally mounted has the built-in heat pipe that is used for promoting the radiating effect, built-in guiding device that is used for controlling built-in heat pipe inside air is installed to insulating layer one side link, fixedly assembled with is used for the split type heat conduction backward flow cover of built-in heat pipe and built-in guiding device on the insulating layer opposite side link.
The tensile fiber adopts aramid fiber.
The high temperature resistant bag belt is a film belt made of polyether-ether-ketone.
The insulating layer is made of low-smoke halogen-free flame-retardant crosslinked polyolefin with the temperature of heat resistance of 150 ℃.
The built-in heat conduction pipe comprises a flexible flow guide pipe with tensile fibers wound on the surface and copper internal heat conduction strips fixed on the inner side wall and the outer side wall of the flexible flow guide pipe.
The split type heat conduction reflux cover comprises an annular built-in assembly cover sleeved on the outer side of the aluminum alloy strand wires and an annular external sealing cover sleeved on the outer side of the annular built-in assembly cover, and the annular external sealing cover is fixedly assembled with the annular built-in assembly cover through an internal locking bolt.
The heat-conducting device is characterized in that a plurality of outwards-protruding external heat-radiating pipes are fixedly assembled on the outer side face of the insulating layer, copper external heat-conducting strips are fixedly assembled on the inner side face and the outer side face of the external heat-radiating pipes, and two ends of each external heat-radiating pipe are fixedly communicated with the built-in flow guide device and the split heat-conducting backflow cover respectively.
The copper internal heat conduction strip and the copper external heat conduction strip are of Z-shaped structural design.
The built-in flow guiding device comprises a built-in flow guiding cover communicated with the built-in heat conducting pipe, an annular centrifugal fan arranged inside the built-in flow guiding cover and an external flow guiding cover arranged on the outer side face of the built-in flow guiding cover.
An external connecting pipe fixedly communicated with an external radiating pipe is fixed on the arc surface on the outer side of the external air guide sleeve.
The beneficial effects of the invention are as follows:
(1) According to the aluminum alloy conductor energy storage battery connecting cable, the aluminum alloy conductor is adopted, so that the material cost of the energy storage battery connecting cable can be effectively reduced, and the wide popularization of products is facilitated;
(2) The aramid fiber tensile fiber is filled in the outer layer of the conductor, so that the tensile force resistance of the conductor in the manufacturing and using processes can be increased, and the risk that the aluminum alloy conductor is easily pulled and broken is avoided;
(3) The PEEK high-temperature-resistant wrapping tape is wrapped on the outer layer of the conductor, so that not only can the insulation performance, the high-temperature resistance, the moisture resistance and the solvent resistance be improved, but also the conductor structure can be more compacted, the conductivity and the binding force of the wire and the tensile fiber are improved;
(4) The heat-resistant 150 ℃ low-smoke halogen-free flame-retardant XLPO insulating layer is adopted, so that the working temperature of the conductor of the cable is increased from the conventional maximum 125 ℃ to 150 ℃, the heat resistance of the insulating layer is increased, and the current-carrying capacity of the conductor is improved;
(5) The inner heat pipe is fixedly arranged in the tensile fiber, the outer radiating pipe is fixedly assembled on the outer side face of the insulating layer, the inner guide device and the split type heat conduction reflux cover are arranged at the connecting ends of the two sides of the cable to be fixedly communicated with the inner heat pipe and the outer radiating pipe, so that the inner heat can be rapidly pumped outwards, and the radiating efficiency of the whole cable is improved;
(6) The copper inner heat conducting strips are arranged on the inner heat conducting pipes, and the copper outer heat conducting strips are arranged on the outer heat radiating pipes, so that the heat conducting efficiency can be greatly improved, and the tightness is ensured;
(7) By arranging the flow guiding mechanisms at the connecting ends at the two sides, the integrity of the cable is not affected.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an internal cross-sectional view of the present invention.
Fig. 3 is a partial schematic view of the internal structure of the present invention.
FIG. 4 is a partial schematic view of the internal structure of the heat pipe of the present invention.
Fig. 5 is a partial schematic view showing an internal structure of an external radiating pipe according to the present invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
An aluminum alloy conductor energy storage battery connecting cable shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 comprises a conductor 1 formed by aluminum alloy strands 2 and tensile fibers 3, a high-temperature resistant wrapping belt 3 wrapped on the outer layer of the conductor 1 and an insulating layer 5 extruded on the outer layer of the high-temperature resistant wrapping belt 4, wherein the tensile fibers 3 are uniformly filled in gaps of the aluminum alloy strands 2 on the outer layer of the conductor 1 and twisted in the same direction together with the outer aluminum alloy strands 2, the twisted conductor 1 is wrapped with a layer of the high-temperature resistant wrapping belt 4, the wrapping direction is opposite to the twisting direction of the outer aluminum alloy strands 2, an internal heat conducting pipe 6 for improving the heat dissipation effect is arranged in the tensile fibers 3, a built-in flow guiding device 7 for controlling the air inside the internal heat conducting pipe 6 is arranged at one side connecting end of the insulating layer 5, and a split heat conducting reflux cover 8 for communicating the internal heat conducting pipe 6 with the built-in flow guiding device 7 is fixedly arranged at the other side connecting end of the insulating layer 5.
The tensile fiber 3 is made of aramid fiber.
The high temperature resistant bag belt 4 is a film belt made of polyether-ether-ketone material.
The insulating layer 5 is made of low smoke zero halogen flame retardant cross-linked polyolefin with the temperature resistant of 150 ℃.
In order to improve the internal compression resistance and the impact-pressure resistance, the internal heat conduction pipe 6 comprises a flexible guide pipe 61 with the surface wound with the tensile fiber 3 and a copper internal heat conduction strip 62 fixed on the inner side wall and the outer side wall of the flexible guide pipe 61.
The split heat conduction reflux hood 8 comprises an annular inner assembly hood 81 sleeved on the outer side of the aluminum alloy stranded wire 2 and an annular outer sealing hood 82 sleeved on the outer side of the annular inner assembly hood 81, and the annular outer sealing hood 82 is fixedly assembled with the annular inner assembly hood 81 through an inner locking bolt.
In order to improve external protection and heat dissipation, 6 external heat dissipation pipes 9 protruding outwards are fixedly assembled on the outer side face of the insulating layer 5, copper external heat conduction strips 10 are fixedly assembled on the inner side face and the outer side face of the external heat dissipation pipes 9, and two ends of each external heat dissipation pipe 9 are fixedly communicated with the built-in flow guide device 7 and the split heat conduction backflow cover 8 respectively.
The outer convex structural design can be adopted, and the whole cable can be prevented from rolling; if the inward convex structural design is adopted, the firmness and stability of the insulating layer 5 and the internal connection surface can be improved.
For cooperation installation, promote the leakproofness in the time of guaranteeing the heat conductivity, copper inside heat conduction strip 62 and copper outside heat conduction strip 10 are zigzag structural design.
The connection stability and firmness can be guaranteed by adopting the Z-shaped structure for the copper inner heat conducting strip 62 and the copper outer heat conducting strip 10, and meanwhile, the connection ends are not separated due to expansion caused by heat and contraction caused by cold, so that the tightness is guaranteed.
The transverse sections of the copper inner heat conducting strip 62 and the copper outer heat conducting strip 10 are designed by embedded structures.
For fitting the split assembly, the built-in deflector 7 comprises a built-in deflector 71 communicating with the built-in heat pipe 6, an annular centrifugal fan 72 installed inside the built-in deflector 71, and an external deflector 73 installed on the outer side of the built-in deflector 71.
The annular centrifugal fan 72 is in the prior art, and pumps air into the built-in guide device 7 from the built-in heat conduction pipe 6 through rotation, then the air is led into the split heat conduction reflux hood 8 through the external radiating pipe 9, and the air flows back into the built-in heat conduction pipe 6 through the split heat conduction reflux hood 8, so that the circulating flow of the air is formed.
In order to match the external assembly and fixation, an external connecting pipe 11 fixedly communicated with the external radiating pipe 9 is fixed on the arc surface of the outer side of the external air guide sleeve 73.
One end of the external radiating pipe 9 is sleeved outside the external connecting pipe 11 and fixedly communicated with the inside of the external air guide sleeve 73, and the other end of the external radiating pipe is fixedly communicated with the annular external sealing sleeve 72.
In the embodiment shown in fig. 1 and 2, the number of strands of the aluminum alloy strands 2 is 19, the diameter of the aluminum alloy single wires constituting the strands is 0.3 to 0.5mm, and the number of single wires is calculated from the total sectional area of the aluminum alloy conductor. Several aluminum alloy single wire bundles are twisted into aluminum alloy strands 2.
In the embodiment shown in fig. 1 and 2, the conductor 1 is formed by twisting 19 strands 2 of aluminum alloy and 6 strands 3 of tensile fibers. The 19 strands of aluminum alloy strands are twisted in a 1+6+12 arrangement from inside to outside, and the twisting directions of the 6 strands of the inner layer and the 12 strands of the outer layer are opposite. The tensile fiber 3 is formed by uniformly filling gaps around 12 strands of aluminum alloy strands of the outer layer with 6 strands of aramid fibers, and is twisted together with the strands in the same direction.
In the embodiment shown in fig. 1 and 2, the tensile fiber 3 is made of aramid fiber, and the linear density of each strand is not lower than 1350dtex, and the breaking force provided by each strand is not lower than 189N.
In the embodiment shown in fig. 1 and 2, the high temperature resistant wrapping tape 4 is a PEEK film tape and is tightly wrapped on the outer layer of the conductor 1, the wrapping direction of the PEEK film tape is opposite to the twisting direction of the outer layer aluminum alloy strands 2, and the wrapping overlapping rate is more than or equal to 15%. The thickness of the PEEK high temperature resistant wrapping tape is 0.05-0.10 mm, the thermal deformation temperature is 152 ℃ (1.8 Mpa), the dielectric strength is 23kVmm-1, the tensile strength is more than or equal to 100MPa, and the water absorption rate is less than or equal to 0.07% (24 h,23 ℃).
In the embodiment shown in fig. 1 and2, the insulating layer 5 is extruded on the outer layer of the high temperature resistant tape 4, and the insulating layer is subjected to electron beam irradiation to perform a crosslinking reaction. The insulating layer adopts heat-resistant 150 ℃ low-smoke halogen-free flame retardant XLPO, the retention rate of tensile strength and elongation at break after heat aging (180 ℃ and 168 hours) is more than or equal to 85 percent, the thermal elongation (250 ℃ and 15min and 0.2 MPa) performance is less than or equal to 45 percent of elongation under load, and the permanent deformation rate after cooling is less than or equal to 5 percent.
Compared with copper conductors, aluminum alloy conductors are adopted, the density of the aluminum alloy conductors is about 30% of copper, the purchase unit price of the material is about 35% of copper, and the cost of the aluminum alloy materials for the conductor parts is about 20% of the cost of the copper materials on the premise of obtaining the same current carrying capacity by considering that the conductivity of the aluminum alloy conductors is about 60% of the conductivity of copper. Because the material cost of the conductor 1 accounts for a large proportion of the material cost of the cable, the material cost of the cable can be greatly reduced by adopting the aluminum alloy conductor.
The aramid fiber tensile fiber is filled around the outer layer of the aluminum alloy conductor, so that the tensile force generated in the manufacturing and using processes of the conductor 1 can be evenly shared. The tensile strength of the aramid fiber is larger than that of the aluminum alloy conductor, and the elongation at break is smaller than that of the aluminum alloy conductor, so that when the conductor 1 is subjected to larger tensile force, the aramid fiber tensile fiber can effectively bear the tensile force, and the aluminum alloy conductor is protected from being thinned and broken due to the larger tensile force. Meanwhile, the temperature resistance of the aramid fiber reaches 150 ℃, and the aramid fiber is suitable for the long-term working temperature of the cable.
The PEEK high temperature resistant wrapping belt 4 is wrapped on the outer layer of the conductor 1, so that the phenomenon that the structure is loose due to the fact that the tension of an aluminum alloy conductor is not easy to be too large and the wire harness die is not easy to be too small in the twisting process can be effectively overcome. The PEEK high temperature resistant wrapping belt 4 is wrapped, so that the structure of the conductor 1 is more compact, the conductive performance and the binding force between a wire and a tensile fiber are improved, and meanwhile, the insulation performance, the high temperature resistance, the moisture resistance and the solvent resistance of the cable are also improved due to the PEEK.
The outer layer of the PEEK high-temperature-resistant wrapping belt 4 is extruded with 150 ℃ low smoke halogen-free flame retardant XLPO to form the insulating layer 5, so that the working temperature of the conductor 1 of the cable is increased from the conventional maximum 125 ℃ to 150 ℃, the heat resistance of the insulating layer 5 is increased, the current-carrying capacity of the conductor 1 is increased by about 15%, and the defect that the current-carrying capacity of an aluminum alloy conductor is lower than that of a copper conductor is overcome to a certain extent. The low-smoke zero-halogen flame-retardant XLPO insulating layer with the temperature of 150 ℃ resistance also meets the requirements of the energy storage battery connecting cable on the characteristics of environmental protection, flame retardance, battery acid resistance, weather resistance and the like.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. The utility model provides an aluminum alloy conductor energy storage battery connecting cable, includes conductor (1) by aluminum alloy stranded wire (2) and tensile fiber (3) constitution, around package at the outer high temperature resistant band (4) of conductor and crowded package at the outer insulating layer (5) of high temperature resistant band, characterized by, tensile fiber (3) are evenly filled in the clearance of the outer aluminum alloy stranded wire (2) of conductor (1), with the same direction compound hank of outer aluminum alloy stranded wire together, the conductor after compound hank is again around package one deck high-resistant Wen Baodai (4), and the direction of wrapping is opposite with the compound hank direction of outer aluminum alloy stranded wire, tensile fiber (3) internally mounted has built-in heat pipe (6) that are used for promoting the radiating effect, built-in guiding device (7) that are used for controlling built-in heat pipe (6) inside air are installed to insulating layer (5) one side link, are equipped with split type heat conduction backward flow cover (8) that are used for intercommunication built-in heat pipe (6) and built-in guiding device (7) on the link of insulating layer (5) opposite side link.
2. The aluminum alloy conductor energy storage battery connection cable of claim 1, wherein: the tensile fiber (3) is made of aramid fiber.
3. The aluminum alloy conductor energy storage battery connection cable of claim 1, wherein: the high-temperature-resistant wrapping tape (4) is a film tape made of polyether-ether-ketone.
4. The aluminum alloy conductor energy storage battery connection cable of claim 1, wherein: the insulating layer (5) is made of low-smoke halogen-free flame-retardant crosslinked polyolefin with the temperature of heat resistance of 150 ℃.
5. The aluminum alloy conductor energy storage battery connection cable of claim 1, wherein: the built-in heat conduction pipe (6) comprises a flexible guide pipe (61) with a tensile fiber (3) wound on the surface and a copper internal heat conduction strip (62) fixed on the inner side wall and the outer side wall of the flexible guide pipe (61).
6. The aluminum alloy conductor energy storage battery connection cable of claim 1, wherein: the split type heat conduction reflux cover (8) comprises an annular built-in assembly cover (81) sleeved on the outer side of the aluminum alloy strand wires (2) and an annular external sealing cover (82) sleeved on the outer side of the annular built-in assembly cover (81), and the annular external sealing cover (82) is fixedly assembled with the annular built-in assembly cover (81) through an internal locking bolt.
7. The aluminum alloy conductor energy storage battery connection cable of claim 5, wherein: the heat-conducting device is characterized in that a plurality of outwards-protruding external heat-radiating pipes (9) are fixedly assembled on the outer side face of the insulating layer (5), copper external heat-conducting strips (10) are fixedly assembled on the inner side face and the outer side face of the external heat-radiating pipes (9), and two ends of each external heat-radiating pipe (9) are fixedly communicated with the built-in flow-guiding device (7) and the split heat-conducting backflow cover (8) respectively.
8. The aluminum alloy conductor energy storage battery connection cable of claim 7, wherein: the copper inner heat conducting strip (62) and the copper outer heat conducting strip (10) are of Z-shaped structural design.
9. The aluminum alloy conductor energy storage battery connection cable of claim 1, wherein: the built-in flow guiding device (7) comprises a built-in flow guiding cover (71) communicated with the built-in heat conducting pipe (6), an annular centrifugal fan (72) arranged inside the built-in flow guiding cover (71) and an external flow guiding cover (73) arranged on the outer side face of the built-in flow guiding cover (71).
10. The aluminum alloy conductor energy storage battery connection cable of claim 9, wherein: an external connecting pipe (11) fixedly communicated with the external radiating pipe (10) is fixed on the arc surface on the outer side of the external air guide sleeve (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202410217773.9A CN118039222A (en) | 2024-02-28 | 2024-02-28 | Aluminum alloy conductor energy storage battery connecting cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410217773.9A CN118039222A (en) | 2024-02-28 | 2024-02-28 | Aluminum alloy conductor energy storage battery connecting cable |
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| CN118039222A true CN118039222A (en) | 2024-05-14 |
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| CN202410217773.9A Pending CN118039222A (en) | 2024-02-28 | 2024-02-28 | Aluminum alloy conductor energy storage battery connecting cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120072402A (en) * | 2025-04-28 | 2025-05-30 | 远东电缆有限公司 | Cable with multichannel and high-heat-dissipation self-checking module |
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2024
- 2024-02-28 CN CN202410217773.9A patent/CN118039222A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120072402A (en) * | 2025-04-28 | 2025-05-30 | 远东电缆有限公司 | Cable with multichannel and high-heat-dissipation self-checking module |
| CN120072402B (en) * | 2025-04-28 | 2025-07-04 | 远东电缆有限公司 | Cable with multichannel and high-heat-dissipation self-checking module |
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