CN110911040B - Cable for new energy automobile and preparation method thereof - Google Patents
Cable for new energy automobile and preparation method thereof Download PDFInfo
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- CN110911040B CN110911040B CN201911360905.9A CN201911360905A CN110911040B CN 110911040 B CN110911040 B CN 110911040B CN 201911360905 A CN201911360905 A CN 201911360905A CN 110911040 B CN110911040 B CN 110911040B
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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
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
- H01B13/2606—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by braiding
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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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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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
- H01B7/17—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
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
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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
- H01B7/17—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
- H01B7/1875—Multi-layer sheaths
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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
- H01B7/17—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
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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
- H01B7/17—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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Ropes Or Cables (AREA)
- Insulated Conductors (AREA)
Abstract
The utility model provides a cable for new energy automobile, includes the cable core, the cable core is formed by a plurality of wires and a plurality of glass fiber rope transposition, and the wire structure is: the innermost layer is a conductor formed by twisting a plurality of copper single wires, and a polytetrafluoroethylene layer is arranged outside the conductor; the cable comprises a cable core and is characterized in that a sleeve A is spirally wound on the cable core, a shape memory alloy A is arranged in the sleeve A, a carbon fiber layer is arranged outside the cable core, a polyimide fiber layer is arranged outside the carbon fiber layer, a silicone rubber outer sheath is arranged outside the polyimide fiber layer, a basalt fiber cloth layer is arranged outside the silicone rubber outer sheath, a sleeve B is spirally wound on the basalt fiber cloth layer, a shape memory alloy B is arranged in the sleeve B, and a steel strip armor braid layer is arranged outside the basalt fiber cloth layer. The cable is high temperature resistant, can trigger power failure or alarm when the cable is in short circuit or overheated, and is suitable for new energy vehicles.
Description
Technical Field
The invention belongs to the technical field of cables, and particularly relates to a cable for a new energy automobile.
Background
The new energy automobile adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, and forms an automobile with advanced technical principle, new technology and new structure.
The shape memory alloy is a material composed of two or more metal elements having a shape memory effect by thermoelastic and martensitic transformation and inversion thereof. Each shape memory alloy composed of a certain element in a certain weight ratio has a transition temperature above which the alloy is processed into a specific shape, and then the alloy in the specific shape is cooled to below the transition temperature, at which time, even if the alloy is artificially changed to an arbitrary shape, the alloy automatically returns to the original specific shape as long as the alloy is heated above the transition temperature. Wherein: 1. the shape memory effect is called one-way memory effect; 2. the shape of the high-temperature phase can be recovered when the alloy is heated, and the shape of the low-temperature phase can be recovered when the alloy is cooled, which is called a two-way memory effect; 3. the shape of the high-temperature phase is recovered when the alloy is heated, the shape of the low-temperature phase with the same shape and opposite orientation is changed when the alloy is cooled, and the shape change is linear, which is called the whole-course memory effect
The existing new energy automobile mostly adopts a battery pack as an energy supply component, a motor is used as a power source, in recent years, spontaneous combustion events of the new energy automobile caused by short circuit of a circuit or overheating of local parts (such as the battery pack) are endless, the existing new energy automobile circuit equipment is provided with a method of installing a current sensor and an external heat sensor and then connecting a protection device to avoid the problems, but due to sun and rain, bumping and collision during driving, daily aging and the like, the existing related sensing components can be out of order, and the sensing positions are not comprehensive as compared with the existing sensing components, so that the new energy automobile cable with short circuit sensing and external temperature sensing is necessary to be designed.
Disclosure of Invention
Aiming at the problems, the cable for the new energy automobile and the preparation method thereof are provided, the cable is high-temperature resistant, and meanwhile, when the cable is in short circuit or is overheated outside, automatic power-off or alarming can be triggered quickly, so that the cable is suitable for the new energy automobile.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a cable for new energy automobile, includes the cable core, the cable core is formed by a plurality of wires and a plurality of glass fiber rope transposition, and the wire structure is: the innermost layer is a conductor formed by twisting a plurality of copper single wires, and a polytetrafluoroethylene layer is arranged outside the conductor; the cable comprises a cable core and is characterized in that a sleeve A is spirally wound on the cable core, a shape memory alloy A is arranged in the sleeve A, a carbon fiber layer is arranged outside the cable core, a polyimide fiber layer is arranged outside the carbon fiber layer, a silicone rubber outer sheath is arranged outside the polyimide fiber layer, a basalt fiber cloth layer is arranged outside the silicone rubber outer sheath, a sleeve B is spirally wound on the basalt fiber cloth layer, a shape memory alloy B is arranged in the sleeve B, and a steel strip armor braid layer is arranged outside the basalt fiber cloth layer.
Preferably, the cable core is formed by twisting 2-10 leads and glass fiber ropes with the number of the leads being 1-2.5 times.
Preferably, the conductor is formed by stranding 30-50 strands of copper single wires with the diameter of 0.2-1 mm.
Preferably, the shape memory alloy A has a full-course memory effect, and the high-temperature memory temperature is 120-160 ℃.
More preferably, the shape memory alloy a is made of: titanium nickel copper alloy or titanium nickel chromium alloy.
Preferably, the shape memory alloy B has a full-range memory effect at a high-temperature memory temperature of 90-120 ℃.
More preferably, the shape memory alloy B is made of: titanium-nickel-iron alloy or copper-zinc-tin alloy.
The preparation steps of the cable are as follows:
(1) putting specified number and specification of copper single wires into a stranding machine for stranding clockwise to obtain a conductor, taking a sleeve A, penetrating a shape memory alloy A into the sleeve A, taking a sleeve B, and penetrating a shape memory alloy B into the sleeve B;
(2) performing stress relief annealing on the conductor prepared in the step (1);
(3) extruding and coating a polytetrafluoroethylene layer on the conductor treated in the step (2) to prepare a lead;
(4) taking a specified number of the wires prepared in the step (3) and a specified number of the glass fiber ropes, twisting to prepare a cable core, and spirally surrounding the cable core by a circle of the sleeve A prepared in the step (1);
(5) wrapping a carbon fiber layer outside the product prepared in the step (4), and wrapping a polyimide fiber layer outside the carbon fiber layer;
(6) extruding and wrapping the product prepared in the step (5) with a silicone rubber layer;
(7) wrapping a basalt fiber cloth layer outside the product prepared in the step (6), and then spirally winding a circle of the sleeve B prepared in the step (1) outside the basalt fiber cloth layer;
(8) putting the product prepared in the step (7) into a braiding machine, braiding a steel tape armor braid layer, and preparing the prepared product into a cable;
(9) and performing spark test, high-voltage test and quality detection on the prepared cable, and packaging and warehousing qualified products.
Preferably, the stress relief annealing process in the step (2) is as follows: putting the conductor into a heating chamber filled with nitrogen, linearly increasing the temperature from room temperature to 450-600 ℃ within 150min, keeping the temperature for 6-11h after the temperature is increased to the target temperature, and then reducing the temperature to room temperature within 9-13 h.
In practical application, the high-temperature memory shapes of the shape memory alloy A and the shape memory alloy B can be made into a contraction shape, the low-temperature memory shapes of the shape memory alloy A and the shape memory alloy B are made into an extension shape, then the shape memory alloy A and the shape memory alloy B are respectively connected with a travel switch, the travel switch is further connected with a protection component (such as a current breaking switch), when the inside of a cable is short-circuited, high temperature can be generated, so that the shape memory alloy A can be heated and deformed, further, the relevant protection component can be pulled through the travel switch, when the temperature outside the cable is overhigh, the shape memory alloy B can be heated and deformed, further, the relevant protection component can be pulled through the travel switch, the short-circuit protection and the external high-temperature protection can be realized, the cable in an automobile can not be very long, further, the quick response can be realized, in addition, the shape memory alloy A and the shape memory alloy B are memorized in the whole process, and the shape is linearly changed along with the temperature, so that the real-time monitoring of the temperature inside and outside the cable can be realized according to the property.
The physical property of the material is used as an induction component, the induction part covers the whole cable, the shape memory alloy A and the shape memory alloy B are wrapped in the cable and are not easy to damage, and the reliability of alarming is greatly improved.
The wire uses heat-resisting and thermal-insulated glass fiber rope to separate, influences each other when preventing that the short circuit from generating heat, and steel band armor weaving layer plays the effect of protecting inside cable and shielding electromagnetic interference, and the basalt fiber cloth layer can prevent burr fish tail oversheath on the armor, and the sleeve pipe has given the flexible space that changes of shape memory alloy.
The invention has the beneficial effects that: the cable is high temperature resistant, can trigger power failure or alarm when the cable is in short circuit or overheated, and is suitable for new energy vehicles.
Drawings
The invention is further illustrated with reference to the figures and examples.
Fig. 1 is a schematic diagram of a cable configuration.
In the figure: 1. the cable comprises a glass fiber rope, 2 parts of conducting wires, 3 parts of a sleeve A, 4 parts of a shape memory alloy A, 5 parts of a carbon fiber layer, 6 parts of a polyimide fiber layer, 7 parts of a silicon rubber outer sheath, 8 parts of a basalt fiber cloth layer, 9 parts of a sleeve B, 10 parts of a shape memory alloy B and 11 parts of a steel tape armor braid.
Detailed Description
Example 1
Fig. 1 is a cable for a new energy automobile, in which: 1. the cable comprises a glass fiber rope, 2 parts of conducting wires, 3 parts of a sleeve A, 4 parts of a shape memory alloy A, 5 parts of a carbon fiber layer, 6 parts of a polyimide fiber layer, 7 parts of a silicon rubber outer sheath, 8 parts of a basalt fiber cloth layer, 9 parts of a sleeve B, 10 parts of a shape memory alloy B and 11 parts of a steel tape armor braid. Including the cable core, the cable core is formed by 3 wires and 4 glass fiber rope transposition, and the wire structure is: the innermost layer is a conductor formed by stranding 30 strands of copper single wires with the diameter of 1mm, and a polytetrafluoroethylene layer is arranged outside the conductor; the cable comprises a cable core and is characterized in that a sleeve A is spirally wound on the cable core, a shape memory alloy A is arranged in the sleeve A, a carbon fiber layer is arranged outside the cable core, a polyimide fiber layer is arranged outside the carbon fiber layer, a silicone rubber outer sheath is arranged outside the polyimide fiber layer, a basalt fiber cloth layer is arranged outside the silicone rubber outer sheath, a sleeve B is spirally wound on the basalt fiber cloth layer, a shape memory alloy B is arranged in the sleeve B, and a steel strip armor braid layer is arranged outside the basalt fiber cloth layer.
Preferably, the shape memory alloy A has a full-range memory effect, and the high-temperature memory temperature is 130 ℃.
More preferably, the shape memory alloy a is made of: titanium-nickel-chromium alloy.
Preferably, the shape memory alloy B has a full-range memory effect at a high-temperature memory temperature of 110 ℃.
More preferably, the shape memory alloy B is made of: titanium-nickel-iron alloy.
The preparation steps of the cable are as follows:
(1) placing copper single wires of specified number and specification of copper single wires into a stranding machine for stranding clockwise to obtain a conductor, taking a sleeve A, penetrating a shape memory alloy A into the sleeve A, taking a sleeve B, and penetrating a shape memory alloy B into the sleeve B;
(2) performing stress relief annealing on the conductor prepared in the step (1);
(3) extruding and coating a polytetrafluoroethylene layer on the conductor treated in the step (2) to prepare a lead;
(4) twisting a specified number of the wires prepared in the step (3) and a specified number of glass fiber ropes to prepare a cable core, and spirally surrounding the cable core by a circle of the sleeve A prepared in the step (1);
(5) wrapping a carbon fiber layer outside the product prepared in the step (4), and wrapping a polyimide fiber layer outside the carbon fiber layer;
(6) extruding and wrapping the product prepared in the step (5) with a silicone rubber layer;
(7) wrapping a basalt fiber cloth layer outside the product prepared in the step (6), and then spirally winding a circle of the sleeve B prepared in the step (1) outside the basalt fiber cloth layer;
(8) putting the product prepared in the step (7) into a braiding machine, braiding a steel tape armor braid layer, and preparing the prepared product into a cable;
(9) and performing spark test, high-voltage test and quality detection on the prepared cable, and packaging and warehousing qualified products.
Preferably, the stress relief annealing process in the step (2) is as follows: the conductor is placed in a heating chamber filled with nitrogen, the temperature is linearly increased from room temperature to 550 ℃ within 120min, the temperature is kept for 9h after the temperature is increased to the target temperature, and then the temperature is reduced to room temperature within 11 h.
Example 2
Fig. 1 is a cable for a new energy automobile, in which: 1. the cable comprises a glass fiber rope, 2 parts of conducting wires, 3 parts of a sleeve A, 4 parts of a shape memory alloy A, 5 parts of a carbon fiber layer, 6 parts of a polyimide fiber layer, 7 parts of a silicon rubber outer sheath, 8 parts of a basalt fiber cloth layer, 9 parts of a sleeve B, 10 parts of a shape memory alloy B and 11 parts of a steel tape armor braid. Including the cable core, the cable core is formed by 3 wires and 4 glass fiber rope transposition, and the wire structure is: the innermost layer is a conductor formed by stranding 40 strands of copper single wires with the diameter of 0.5mm, and a polytetrafluoroethylene layer is arranged outside the conductor; the cable comprises a cable core and is characterized in that a sleeve A is spirally wound on the cable core, a shape memory alloy A is arranged in the sleeve A, a carbon fiber layer is arranged outside the cable core, a polyimide fiber layer is arranged outside the carbon fiber layer, a silicone rubber outer sheath is arranged outside the polyimide fiber layer, a basalt fiber cloth layer is arranged outside the silicone rubber outer sheath, a sleeve B is spirally wound on the basalt fiber cloth layer, a shape memory alloy B is arranged in the sleeve B, and a steel strip armor braid layer is arranged outside the basalt fiber cloth layer.
Preferably, the shape memory alloy A has a full-range memory effect, and the high-temperature memory temperature is 140 ℃.
More preferably, the shape memory alloy a is made of: titanium-nickel-chromium alloy.
Preferably, the shape memory alloy B has a full-range memory effect at a high-temperature memory temperature of 100 ℃.
More preferably, the shape memory alloy B is made of: titanium nickel iron alloy
The preparation steps of the cable are as follows:
(1) placing copper single wires of specified number and specification of copper single wires into a stranding machine for stranding clockwise to obtain a conductor, taking a sleeve A, penetrating a shape memory alloy A into the sleeve A, taking a sleeve B, and penetrating a shape memory alloy B into the sleeve B;
(2) performing stress relief annealing on the conductor prepared in the step (1);
(3) extruding and coating a polytetrafluoroethylene layer on the conductor treated in the step (2) to prepare a lead;
(4) twisting a specified number of the wires prepared in the step (3) and a specified number of glass fiber ropes to prepare a cable core, and spirally surrounding the cable core by a circle of the sleeve A prepared in the step (1);
(5) wrapping a carbon fiber layer outside the product prepared in the step (4), and wrapping a polyimide fiber layer outside the carbon fiber layer;
(6) extruding and wrapping the product prepared in the step (5) with a silicone rubber layer;
(7) wrapping a basalt fiber cloth layer outside the product prepared in the step (6), and then spirally winding a circle of the sleeve B prepared in the step (1) outside the basalt fiber cloth layer;
(8) putting the product prepared in the step (7) into a braiding machine, braiding a steel tape armor braid layer, and preparing the prepared product into a cable;
(9) and performing spark test, high-voltage test and quality detection on the prepared cable, and packaging and warehousing qualified products.
Preferably, the stress relief annealing process in the step (2) is as follows: putting the conductor into a heating chamber filled with nitrogen, linearly increasing the temperature from room temperature to 500 ℃ within 110min, keeping the temperature for 8h after the temperature is increased to the target temperature, and then reducing the temperature to room temperature within 10 h.
Claims (9)
1. The utility model provides a cable for new energy automobile, includes the cable core, characterized by: the cable core is formed by a plurality of wires and a plurality of glass fiber rope transposition, and the wire structure is: the innermost layer is a conductor formed by twisting a plurality of copper single wires, and a polytetrafluoroethylene layer is arranged outside the conductor; the cable comprises a cable core and is characterized in that a sleeve A is spirally wound on the cable core, a shape memory alloy A is arranged in the sleeve A, a carbon fiber layer is arranged outside the cable core, a polyimide fiber layer is arranged outside the carbon fiber layer, a silicone rubber outer sheath is arranged outside the polyimide fiber layer, a basalt fiber cloth layer is arranged outside the silicone rubber outer sheath, a sleeve B is spirally wound on the basalt fiber cloth layer, a shape memory alloy B is arranged in the sleeve B, and a steel strip armor braid layer is arranged outside the basalt fiber cloth layer.
2. The cable for the new energy automobile as claimed in claim 1, wherein: the cable core is formed by twisting 2-10 leads and glass fiber ropes with the number of the leads being 1-2.5 times.
3. The cable for the new energy automobile according to claim 1 or 2, wherein: the conductor is formed by twisting 30-50 strands of copper single wires with the diameter of 0.2-1 mm.
4. The cable for the new energy automobile as claimed in claim 1, wherein: the shape memory alloy A has a whole-course memory effect, and the high-temperature memory temperature is 120-160 ℃.
5. The cable for the new energy automobile as claimed in claim 1 or 4, wherein: the shape memory alloy A is made of the following materials: titanium nickel copper alloy or titanium nickel chromium alloy.
6. The cable for the new energy automobile as claimed in claim 1, wherein: the memory temperature of the shape memory alloy B is a full-range memory effect, and the high-temperature memory temperature is 90-120 ℃.
7. The cable for the new energy automobile as claimed in claim 1 or 6, wherein: the shape memory alloy B is prepared from the following materials: titanium-nickel-iron alloy or copper-zinc-tin alloy.
8. A preparation method of a cable for a new energy automobile is characterized by comprising the following steps: the preparation method comprises the following steps:
(1) putting specified number and specification of copper single wires into a stranding machine for stranding clockwise to obtain a conductor, taking a sleeve A, penetrating a shape memory alloy A into the sleeve A, taking a sleeve B, and penetrating a shape memory alloy B into the sleeve B;
(2) performing stress relief annealing on the conductor prepared in the step (1);
(3) extruding and coating a polytetrafluoroethylene layer on the conductor treated in the step (2) to prepare a lead;
(4) taking a specified number of the wires prepared in the step (3) and a specified number of the glass fiber ropes, twisting to prepare a cable core, and spirally surrounding the cable core by a circle of the sleeve A prepared in the step (1);
(5) wrapping a carbon fiber layer outside the product prepared in the step (4), and wrapping a polyimide fiber layer outside the carbon fiber layer;
(6) extruding and wrapping the product prepared in the step (5) with a silicone rubber layer;
(7) wrapping a basalt fiber cloth layer outside the product prepared in the step (6), and then spirally winding a circle of the sleeve B prepared in the step (1) outside the basalt fiber cloth layer;
(8) putting the product prepared in the step (7) into a braiding machine, braiding a steel tape armor braid layer, and preparing the prepared product into a cable;
(9) and performing spark test, high-voltage test and quality detection on the prepared cable, and packaging and warehousing qualified products.
9. The preparation method of the cable for the new energy automobile according to claim 8, wherein the preparation method comprises the following steps: the stress relief annealing process in the step (2) comprises the following steps: putting the conductor into a heating chamber filled with nitrogen, linearly increasing the temperature from room temperature to 450-600 ℃ within 150min, keeping the temperature for 6-11h after the temperature is increased to the target temperature, and then reducing the temperature to room temperature within 9-13 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911360905.9A CN110911040B (en) | 2019-12-25 | 2019-12-25 | Cable for new energy automobile and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911360905.9A CN110911040B (en) | 2019-12-25 | 2019-12-25 | Cable for new energy automobile and preparation method thereof |
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| CN110911040A CN110911040A (en) | 2020-03-24 |
| CN110911040B true CN110911040B (en) | 2020-07-24 |
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| CN112134238A (en) * | 2020-08-19 | 2020-12-25 | 成都理工大学 | Automatic defroster of overhead ground wire |
| CN112820457A (en) * | 2020-12-23 | 2021-05-18 | 喜天奇(江苏)电子有限公司 | Cold-resistant anti-freezing polyurethane sheath communication cable |
| CN114709017B (en) * | 2022-05-13 | 2023-08-25 | 江苏超诚智能科技有限公司 | High-current power cable and use method thereof |
| CN116978615B (en) * | 2023-08-22 | 2024-02-02 | 无锡市新宇线缆有限公司 | Insulated power cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07335039A (en) * | 1994-06-14 | 1995-12-22 | Hitachi Cable Ltd | High voltage refractory cable with shield |
| JPH0896630A (en) * | 1994-09-26 | 1996-04-12 | Furukawa Electric Co Ltd:The | Fire detecting wire |
| CN2809746Y (en) * | 2005-07-12 | 2006-08-23 | 张卫社 | A flexible corrosion-resistant switching value linear heat sensitive detector |
| CN2898977Y (en) * | 2006-01-23 | 2007-05-09 | 张卫社 | Linear fire temperature-sensing detecting calbe containing memory filament |
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