CN116721814A - Manufacturing method of high-temperature-resistant cable - Google Patents
Manufacturing method of high-temperature-resistant cable Download PDFInfo
- Publication number
- CN116721814A CN116721814A CN202310950524.6A CN202310950524A CN116721814A CN 116721814 A CN116721814 A CN 116721814A CN 202310950524 A CN202310950524 A CN 202310950524A CN 116721814 A CN116721814 A CN 116721814A
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- Prior art keywords
- high temperature
- conductor
- cable
- sheath
- insulating
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 50
- 239000011810 insulating material Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 11
- 229920001643 poly(ether ketone) Polymers 0.000 claims abstract description 10
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 10
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims description 75
- 238000009413 insulation Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 238000003908 quality control method Methods 0.000 claims description 9
- 239000004945 silicone rubber Substances 0.000 claims description 6
- 238000009954 braiding Methods 0.000 claims description 3
- 238000010292 electrical insulation Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 238000005491 wire drawing Methods 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 abstract description 4
- 239000004703 cross-linked polyethylene Substances 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 3
- 229920002635 polyurethane Polymers 0.000 abstract description 3
- 239000004814 polyurethane Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 47
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The application relates to the technical field of cable manufacturing methods, and provides a high-temperature-resistant cable manufacturing method, which comprises the following steps: step one: the materials are selected, cable materials suitable for high temperature resistance are selected, and materials with higher high temperature resistance, such as silicon rubber, polyether ketone, polytetrafluoroethylene and the like, are required to be selected for the insulating layer and the sheath layer. In the present application, an insulating material (such as high temperature crosslinked polyethylene XLPE) or a sheathing material (such as heat-resistant polyurethane) having a high temperature resistant property is used, and when designing and installing a cable, possible high temperature conditions should be considered, and a sufficient safety margin should be reserved, for example, a cable having a rated temperature higher than an actual operating temperature is selected, and the cable is prevented from operating in a high temperature environment for a long time, and for equipment or circuits in a high temperature environment, cooling measures may be taken to reduce the operating temperature of the cable, which may include methods of installing a radiator, a fan, or using a cooling medium, etc.
Description
Technical Field
The application relates to the technical field of cable manufacturing methods, in particular to a high-temperature-resistant cable manufacturing method.
Background
A cable is an electrical harness consisting of one or more insulated conductors and insulating material and a protective layer for transmitting power, signals and data between different devices, buildings and circuits, the insulating material of the cable losing its insulating properties easily at high temperatures, resulting in a reduced insulating capacity of the cable. This may lead to problems such as insulation breakdown or leakage of the cable, which may cause the cable to fail to work normally or cause potential safety hazards, and the resistance of the cable conductor may increase in a high temperature environment, which may cause heating and energy loss increase of the cable, may cause overload of the cable, loss of electric energy or decrease transmission efficiency of the cable, and if the cable is operated at a high temperature for too long time or suffers from a direct heat source at an excessively high temperature, the conductor may melt or deform, which may cause unreliable electrical connection of the cable, even cause serious consequences such as cable failure, short circuit or fire, so improvement is required.
Disclosure of Invention
The application aims to solve the defects in the prior art and provides a manufacturing method of a high-temperature-resistant cable.
In order to achieve the above purpose, the present application adopts the following technical scheme: the manufacturing method of the high-temperature-resistant cable comprises the following steps:
step one: selecting materials, namely selecting cable materials suitable for high temperature resistance, wherein the insulating layer and the sheath layer need to be made of materials with higher high temperature resistance, such as silicon rubber, polyether ketone, polytetrafluoroethylene and the like, and the conductor materials usually select metals with good conductivity and high temperature resistance, such as copper or aluminum;
step two: the conductor is manufactured, the conductor material is selected according to the requirement, and the conductor material is processed into a required shape, such as a single wire or a multi-strand stranded wire, so that the conductor is ensured to have good conductive performance and a stable structure;
step three: manufacturing an insulating layer, namely selecting a high-temperature-resistant insulating material, and processing the insulating material into a proper shape, such as a tube shape or a strip shape, so as to be sleeved on a conductor, thereby ensuring that the insulating layer has good electrical insulating performance and high-temperature resistance;
step four: the assembly of the conductors and the insulating layer, namely, sleeving the insulating layer on the conductors, ensuring that each conductor is completely covered, and preventing electrical short circuit and insulation damage;
step five: the sheath layer is manufactured, a high-temperature resistant sheath material is selected and processed into a proper shape, such as a round shape or a flat shape, so that the sheath layer is ensured to have good mechanical protection and high-temperature resistance;
step six: the sheath is assembled, the sheath layer is sleeved on the assembled conductor and insulating layer, so that the whole cable is ensured to have good protection and high temperature resistance;
step seven: testing and quality control, the manufactured high-temperature-resistant cable is tested to ensure that the cable meets the required electrical characteristics and quality standards, and the testing can comprise the aspects of electrical performance, high-temperature resistance and the like.
As a further aspect of the application, in step one, the material selection includes,
(1) The conductor material with high temperature resistance is selected, and high-temperature electrolytic copper or aluminum materials are usually used, and have good conductivity and high temperature resistance;
(2) High-temperature resistant insulating materials such as silicone rubber, polyether ketone, polytetrafluoroethylene and the like are selected, and the materials can keep good insulating performance in a high-temperature environment;
(3) High temperature resistant sheath materials, such as silicone rubber, polyether ketone, polytetrafluoroethylene and the like, are selected, and can provide mechanical protection and high temperature resistance of the cable.
As a further aspect of the application, in step two, the conductor manufacturing includes,
(1) The appropriate conductor type, such as single or stranded conductor, is selected according to the requirements. Ensuring that the conductor has good conductivity and stable structure;
(2) Conductor processing, such as wire drawing, twisting, and braiding of copper or aluminum wire, is performed to obtain conductors of the desired size and shape.
As a further aspect of the present application, in step three, the insulating layer manufacturing includes,
(1) Processing the selected high temperature resistant insulating material into a suitable shape, such as a tube or a tape;
(2) Fits over the conductors and ensures that the insulating layer completely covers each conductor to provide good electrical insulation and protection.
As a further aspect of the present application, in step four, the assembly of the conductor and the insulating layer includes,
(1) Sleeving the insulating layers on the conductors to ensure that each conductor is completely wrapped and fastened by the insulating layers, and preventing electrical short circuit and insulation damage;
(2) Insulating layer bundling is performed to fix the position of the conductors and insulating layers.
As a further aspect of the present application, in step five, the sheath layer manufacturing includes,
(1) Selecting a high-temperature resistant sheath material and processing the sheath material into a proper shape, such as a round shape or a flat shape;
(2) Ensuring the sheath layer to have good mechanical protection and high temperature resistance.
As a further aspect of the present application, in step six, the sheath assembly includes,
(1) Sleeving the sheath layer on the assembled conductor and insulating layer to ensure that the whole cable has good protection and high temperature resistance;
(2) The jacket layer is pressed or wound so as to be firmly fixed on the cable.
As a further aspect of the application, in step seven, testing and quality control includes,
(1) Testing the manufactured high-temperature-resistant cable to ensure that the high-temperature-resistant cable meets the required electrical characteristics and quality standards, wherein the testing can comprise high-temperature resistance testing, electrical performance testing, mechanical performance testing and the like;
(2) And (5) performing quality control to ensure that each cable meets the specified requirements and standards.
Compared with the prior art, the application has the advantages and positive effects that:
in the present application, a specially treated insulating material (such as XLPE) or a sheath material (such as heat-resistant polyurethane) with high temperature resistance is used, when designing and installing a cable, possible high temperature conditions should be considered, and enough safety margin should be reserved, for example, a cable with rated temperature higher than actual working temperature is selected, and the cable is prevented from running in high temperature environment for a long time, for equipment or circuits in high temperature environment, cooling measures can be adopted to reduce the working temperature of the cable, which can include methods of installing a radiator, a fan or using a cooling medium, etc. to maintain the normal working temperature range of the cable, in particularly required situations, fireproof materials or fireproof layers can be used to improve the high temperature resistance of the cable, in addition, a heat insulating layer or a heat insulating sleeve is adopted, etc. can reduce the heat conduction of the cable from an external high temperature source, regularly check and maintain the cable system, ensure the normal working and timely find potential problems, which include checking the insulation condition of the cable, the integrity of the sheath, and the reliability of the connection, such as any or abnormal replacement should be found and repaired timely.
Drawings
Fig. 1 is a step diagram of a method for manufacturing a high temperature resistant cable according to the present application.
Detailed Description
In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and therefore the present application is not limited to the specific embodiments of the disclosure that follow.
Example 1
Referring to fig. 1, the present application provides a technical solution: the manufacturing method of the high-temperature-resistant cable comprises the following steps:
step one: selecting materials, namely selecting cable materials suitable for high temperature resistance, wherein the insulating layer and the sheath layer need to be made of materials with higher high temperature resistance, such as silicon rubber, polyether ketone, polytetrafluoroethylene and the like, and the conductor materials usually select metals with good conductivity and high temperature resistance, such as copper or aluminum;
step two: the conductor is manufactured, the conductor material is selected according to the requirement, and the conductor material is processed into a required shape, such as a single wire or a multi-strand stranded wire, so that the conductor is ensured to have good conductive performance and a stable structure;
step three: manufacturing an insulating layer, namely selecting a high-temperature-resistant insulating material, and processing the insulating material into a proper shape, such as a tube shape or a strip shape, so as to be sleeved on a conductor, thereby ensuring that the insulating layer has good electrical insulating performance and high-temperature resistance;
step four: the assembly of the conductors and the insulating layer, namely, sleeving the insulating layer on the conductors, ensuring that each conductor is completely covered, and preventing electrical short circuit and insulation damage;
step five: the sheath layer is manufactured, a high-temperature resistant sheath material is selected and processed into a proper shape, such as a round shape or a flat shape, so that the sheath layer is ensured to have good mechanical protection and high-temperature resistance;
step six: the sheath is assembled, the sheath layer is sleeved on the assembled conductor and insulating layer, so that the whole cable is ensured to have good protection and high temperature resistance;
step seven: testing and quality control, the manufactured high-temperature-resistant cable is tested to ensure that the cable meets the required electrical characteristics and quality standards, and the testing can comprise the aspects of electrical performance, high-temperature resistance and the like.
Referring to fig. 1, in a first step, material selection includes,
(1) The conductor material with high temperature resistance is selected, and high-temperature electrolytic copper or aluminum materials are usually used, and have good conductivity and high temperature resistance;
(2) High-temperature resistant insulating materials such as silicone rubber, polyether ketone, polytetrafluoroethylene and the like are selected, and the materials can keep good insulating performance in a high-temperature environment;
(3) High temperature resistant sheath materials, such as silicone rubber, polyether ketone, polytetrafluoroethylene and the like, are selected, and can provide mechanical protection and high temperature resistance of the cable.
Referring to fig. 1, in step two, the conductor fabrication includes,
(1) The appropriate conductor type, such as single or stranded conductor, is selected according to the requirements. Ensuring that the conductor has good conductivity and stable structure;
(2) Conductor processing, such as wire drawing, twisting, and braiding of copper or aluminum wire, is performed to obtain conductors of the desired size and shape.
Referring to fig. 1, in step three, the insulating layer fabrication includes,
(1) Processing the selected high temperature resistant insulating material into a suitable shape, such as a tube or a tape;
(2) Fits over the conductors and ensures that the insulating layer completely covers each conductor to provide good electrical insulation and protection.
Referring to fig. 1, in step four, the assembly of the conductor and the insulation layer includes,
(1) Sleeving the insulating layers on the conductors to ensure that each conductor is completely wrapped and fastened by the insulating layers, and preventing electrical short circuit and insulation damage;
(2) Insulating layer bundling is performed to fix the position of the conductors and insulating layers.
Referring to fig. 1, in step five, the sheath manufacturing includes,
(1) Selecting a high-temperature resistant sheath material and processing the sheath material into a proper shape, such as a round shape or a flat shape;
(2) Ensuring the sheath layer to have good mechanical protection and high temperature resistance.
Referring to fig. 1, in step six, the sheath assembly includes,
(1) Sleeving the sheath layer on the assembled conductor and insulating layer to ensure that the whole cable has good protection and high temperature resistance;
(2) The jacket layer is pressed or wound so as to be firmly fixed on the cable.
Referring to fig. 1, in step seven, testing and quality control includes,
(1) Testing the manufactured high-temperature-resistant cable to ensure that the high-temperature-resistant cable meets the required electrical characteristics and quality standards, wherein the testing can comprise high-temperature resistance testing, electrical performance testing, mechanical performance testing and the like;
(2) And (5) performing quality control to ensure that each cable meets the specified requirements and standards.
In the present application, a specially treated insulating material (such as XLPE) or a sheath material (such as heat-resistant polyurethane) with high temperature resistance is used, when designing and installing a cable, possible high temperature conditions should be considered, and enough safety margin should be reserved, for example, a cable with rated temperature higher than actual working temperature is selected, and the cable is prevented from running in high temperature environment for a long time, for equipment or circuits in high temperature environment, cooling measures can be adopted to reduce the working temperature of the cable, which can include methods of installing a radiator, a fan or using a cooling medium, etc. to maintain the normal working temperature range of the cable, in particularly required situations, fireproof materials or fireproof layers can be used to improve the high temperature resistance of the cable, in addition, a heat insulating layer or a heat insulating sleeve is adopted, etc. can reduce the heat conduction of the cable from an external high temperature source, regularly check and maintain the cable system, ensure the normal working and timely find potential problems, which include checking the insulation condition of the cable, the integrity of the sheath, and the reliability of the connection, such as any or abnormal replacement should be found and repaired timely.
The present application is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present application without departing from the technical content of the present application still belong to the protection scope of the technical solution of the present application.
Claims (8)
1. The manufacturing method of the high-temperature-resistant cable is characterized by comprising the following steps of:
step one: selecting materials, namely selecting cable materials suitable for high temperature resistance, wherein the insulating layer and the sheath layer need to be made of materials with higher high temperature resistance, such as silicon rubber, polyether ketone, polytetrafluoroethylene and the like, and the conductor materials usually select metals with good conductivity and high temperature resistance, such as copper or aluminum;
step two: the conductor is manufactured, the conductor material is selected according to the requirement, and the conductor material is processed into a required shape, such as a single wire or a multi-strand stranded wire, so that the conductor is ensured to have good conductive performance and a stable structure;
step three: manufacturing an insulating layer, namely selecting a high-temperature-resistant insulating material, and processing the insulating material into a proper shape, such as a tube shape or a strip shape, so as to be sleeved on a conductor, thereby ensuring that the insulating layer has good electrical insulating performance and high-temperature resistance;
step four: the assembly of the conductors and the insulating layer, namely, sleeving the insulating layer on the conductors, ensuring that each conductor is completely covered, and preventing electrical short circuit and insulation damage;
step five: the sheath layer is manufactured, a high-temperature resistant sheath material is selected and processed into a proper shape, such as a round shape or a flat shape, so that the sheath layer is ensured to have good mechanical protection and high-temperature resistance;
step six: the sheath is assembled, the sheath layer is sleeved on the assembled conductor and insulating layer, so that the whole cable is ensured to have good protection and high temperature resistance;
step seven: testing and quality control, the manufactured high-temperature-resistant cable is tested to ensure that the cable meets the required electrical characteristics and quality standards, and the testing can comprise the aspects of electrical performance, high-temperature resistance and the like.
2. The method for manufacturing a high temperature resistant cable according to claim 1, wherein: in a first step, the material selection includes,
(1) The conductor material with high temperature resistance is selected, and high-temperature electrolytic copper or aluminum materials are usually used, and have good conductivity and high temperature resistance;
(2) High-temperature resistant insulating materials such as silicone rubber, polyether ketone, polytetrafluoroethylene and the like are selected, and the materials can keep good insulating performance in a high-temperature environment;
(3) High temperature resistant sheath materials, such as silicone rubber, polyether ketone, polytetrafluoroethylene and the like, are selected, and can provide mechanical protection and high temperature resistance of the cable.
3. The method for manufacturing a high temperature resistant cable according to claim 1, wherein: in a second step, the conductor fabrication includes,
(1) The appropriate conductor type, such as single or stranded conductor, is selected according to the requirements. Ensuring that the conductor has good conductivity and stable structure;
(2) Conductor processing, such as wire drawing, twisting, and braiding of copper or aluminum wire, is performed to obtain conductors of the desired size and shape.
4. The method for manufacturing a high temperature resistant cable according to claim 1, wherein: in a third step, the insulating layer fabrication includes,
(1) Processing the selected high temperature resistant insulating material into a suitable shape, such as a tube or a tape;
(2) Fits over the conductors and ensures that the insulating layer completely covers each conductor to provide good electrical insulation and protection.
5. The method for manufacturing a high temperature resistant cable according to claim 1, wherein: in step four, the assembly of the conductor and the insulating layer includes,
(1) Sleeving the insulating layers on the conductors to ensure that each conductor is completely wrapped and fastened by the insulating layers, and preventing electrical short circuit and insulation damage;
(2) Insulating layer bundling is performed to fix the position of the conductors and insulating layers.
6. The method for manufacturing a high temperature resistant cable according to claim 1, wherein: in a fifth step, the jacket layer fabrication includes,
(1) Selecting a high-temperature resistant sheath material and processing the sheath material into a proper shape, such as a round shape or a flat shape;
(2) Ensuring the sheath layer to have good mechanical protection and high temperature resistance.
7. The method for manufacturing a high temperature resistant cable according to claim 1, wherein: in step six, the sheath assembly includes,
(1) Sleeving the sheath layer on the assembled conductor and insulating layer to ensure that the whole cable has good protection and high temperature resistance;
(2) The jacket layer is pressed or wound so as to be firmly fixed on the cable.
8. The method for manufacturing a high temperature resistant cable according to claim 1, wherein: in step seven, testing and quality control includes,
(1) Testing the manufactured high-temperature-resistant cable to ensure that the high-temperature-resistant cable meets the required electrical characteristics and quality standards, wherein the testing can comprise high-temperature resistance testing, electrical performance testing, mechanical performance testing and the like;
(2) And (5) performing quality control to ensure that each cable meets the specified requirements and standards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310950524.6A CN116721814A (en) | 2023-07-31 | 2023-07-31 | Manufacturing method of high-temperature-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310950524.6A CN116721814A (en) | 2023-07-31 | 2023-07-31 | Manufacturing method of high-temperature-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116721814A true CN116721814A (en) | 2023-09-08 |
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ID=87871808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310950524.6A Pending CN116721814A (en) | 2023-07-31 | 2023-07-31 | Manufacturing method of high-temperature-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116721814A (en) |
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2023
- 2023-07-31 CN CN202310950524.6A patent/CN116721814A/en active Pending
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