CN118185691A - Heavy-load stamping forming oil for new energy battery case - Google Patents
Heavy-load stamping forming oil for new energy battery case Download PDFInfo
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- CN118185691A CN118185691A CN202410330526.XA CN202410330526A CN118185691A CN 118185691 A CN118185691 A CN 118185691A CN 202410330526 A CN202410330526 A CN 202410330526A CN 118185691 A CN118185691 A CN 118185691A
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- energy battery
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- 239000003921 oil Substances 0.000 claims abstract description 102
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 50
- 239000003112 inhibitor Substances 0.000 claims abstract description 28
- 239000002199 base oil Substances 0.000 claims abstract description 26
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 25
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 25
- 239000013556 antirust agent Substances 0.000 claims abstract description 25
- 101100006584 Mus musculus Clnk gene Proteins 0.000 claims abstract description 22
- 239000003595 mist Substances 0.000 claims abstract description 22
- 150000002148 esters Chemical class 0.000 claims abstract description 19
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 18
- 235000019198 oils Nutrition 0.000 claims description 95
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 230000002950 deficient Effects 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 8
- 239000012188 paraffin wax Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 6
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 6
- 239000000194 fatty acid Substances 0.000 claims description 6
- 229930195729 fatty acid Natural products 0.000 claims description 6
- -1 fatty acid ester Chemical class 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229940049964 oleate Drugs 0.000 claims description 6
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 6
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 6
- 238000003672 processing method Methods 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- 239000002480 mineral oil Substances 0.000 claims description 4
- 235000010446 mineral oil Nutrition 0.000 claims description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical group CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 3
- 229920002367 Polyisobutene Polymers 0.000 claims description 3
- YSIQDTZQRDDQNF-UHFFFAOYSA-L barium(2+);2,3-di(nonyl)naphthalene-1-sulfonate Chemical group [Ba+2].C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1.C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1 YSIQDTZQRDDQNF-UHFFFAOYSA-L 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 235000012424 soybean oil Nutrition 0.000 claims description 3
- 239000003549 soybean oil Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 8
- 150000001875 compounds Chemical class 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 5
- 239000006260 foam Substances 0.000 abstract description 3
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000010705 motor oil Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000005078 molybdenum compound Substances 0.000 description 2
- 150000002752 molybdenum compounds Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Lubricants (AREA)
Abstract
The invention discloses heavy-load stamping forming oil for a new energy battery shell, which comprises stamping forming oil, wherein the stamping forming oil consists of base oil, an oiliness agent, synthetic ester, an extreme pressure agent, an antiwear reinforcing agent, an antirust agent, an antioxidant and an oil mist inhibitor, and consists of the following components in percentage by weight: 50% -70% of base oil; 5% -10% of an oily agent; 8% -17% of synthetic ester; 4% -8% of extreme pressure agent; 1% -5% of an antiwear reinforcing agent; 2% -4% of antirust agent; 0.3% -1% of antioxidant; 3% -7% of oil mist inhibitor. According to the invention, through the base oil, the punch forming oil can have better foam resistance and cleaning performance when in use, through the set antiwear extreme pressure agent, the punch forming oil can have good lubricity and antiwear performance when in use, the service lives of a die and a punch are prolonged, and through the set antioxidant, the conditions that the temperature of the punch part of the steel shell engine oil is higher when a machine works, and the steel shell engine oil is contacted with a large amount of air and is easy to oxidize when in circulation after lubricating oil is added can be effectively avoided.
Description
Technical Field
The invention relates to the technical field of processing of new energy battery shells, in particular to heavy-load stamping forming oil for new energy battery shells.
Background
In the production process of new energy batteries, the steel shell machine is an important device for producing batteries by dry batteries, is mainly used for stamping battery shells, has high stamping speed (70-90 times/min), and is made of thin cold-rolled steel strips, so that the problems of abrasion, heating, corrosion and the like of stamping dies are difficult to avoid. In order to reduce abrasion, reduce heat, reduce the temperature of a die, prevent rust and prolong the service life of equipment, a lubricating medium is needed for lubrication and cooling, so that the oil product is required to have better lubricating property and heat conducting property, and meanwhile, the oil product is usually contacted with air in use, so that the medium oil is required to have better oxidation resistance and foam resistance, and impurities such as powder, metal particles and the like generated in the stamping process can be timely cleaned and dispersed in the oil, so that sedimentation and filtration are convenient, and the oil product is required to have better cleaning property and filtering property. In addition, the stamping part can be degreased smoothly in the post-treatment process, namely, the stamping part is required to have better degreasing performance;
Whereas traditional stamping drawing oil for metal working: the base oil and the chlorinated paraffin are mainly adopted as main components, and the chlorinated paraffin only has extreme pressure property in a metal workpiece, but cannot have rust resistance and oxidation resistance, so that the processed metal workpiece or the abnormal-shaped workpiece is easy to be napped, deformed and rusted, is inconvenient to clean in the subsequent working procedure, often has a large amount of adhesion substances remained on equipment, and has lower product yield; the used mold is easy to be seriously damaged and sintered after being used for a period of time, so that the service efficiency of the mold and the quality of products are greatly reduced. Therefore, there is a need to design a heavy-duty stamping forming oil for new energy battery cases to solve the above problems.
Disclosure of Invention
The invention aims to provide heavy-load stamping forming oil for a new energy battery shell, which is used for solving the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the heavy-load stamping forming oil for the new energy battery shell comprises stamping forming oil, wherein the stamping forming oil consists of base oil, an oiliness agent, synthetic ester, an extreme pressure agent, an antiwear reinforcing agent, an antirust agent, an antioxidant and an oil mist inhibitor, and consists of the following components in percentage by weight:
50% -70% of base oil;
5% -10% of an oily agent;
8% -17% of synthetic ester;
4% -8% of extreme pressure agent;
1% -5% of an antiwear reinforcing agent;
2% -4% of antirust agent;
0.3% -1% of antioxidant;
3% -7% of oil mist inhibitor.
The processing method of the stamping forming oil comprises the following steps:
s1: pouring the base oil and the oiliness agent into a reaction kettle together, heating and stirring to mix the base oil and the oiliness agent to form initial oil;
S2: pouring the synthetic ester, the antiwear reinforcing agent and the extreme pressure agent into a reaction kettle together for stirring, so that the synthetic ester, the antiwear reinforcing agent and the extreme pressure agent are mixed with the initial oil to form defective oil;
S3: and pouring the antirust agent, the antioxidant and the oil mist inhibitor into a reaction kettle together for stirring, so that the antirust agent, the antioxidant and the oil mist inhibitor are mixed with the defective oil to form finished oil.
The extreme pressure agent is one of active sulfur extreme pressure agent, medium carbon chain chlorinated paraffin and tricresyl phosphate.
The weight percentages of the active sulfur extreme pressure agent, the medium carbon chain chlorinated paraffin and the tricresyl phosphate are all 4% -8%.
The synthetic ester is one of special fatty acid ester and pentaerythritol oleate.
The weight percentage of the components of the special fatty acid ester and the pentaerythritol oleate are 8-17 percent.
The base oil is a mineral oil deeply refined with a suitable viscosity.
The antirust agent is barium dinonylnaphthalene sulfonate, and the antirust agent can also be formed by compounding a plurality of antirust agents.
The oiliness agent is epoxidized soybean oil, and the antiwear reinforcing agent is an organic molybdenum compound.
The antioxidant is 2, 6-di-tert-butyl-p-cresol, and the oil mist inhibitor is polyisobutene.
In the technical scheme, the heavy-load stamping forming oil for the new energy battery shell has the beneficial effects that:
(1) Through the base oil, the punch forming oil can have better foam resistance and cleaning performance when in use, and through the set antiwear extreme pressure agent, the punch forming oil can have good lubricity and antiwear performance when in use, and the service lives of the die and the punch are prolonged.
(2) Through the rust inhibitor that sets up, can protect metal surface effectively from oxidation and corrosion's influence, extension stamping workpiece's life.
(3) Through the antioxidant that sets up, can effectively avoid steel shell machine oil at the higher condition of punch position temperature of machine during operation, circulate in adding lubricating oil and contact, easy by oxidation with a large amount of air.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic structural diagram of steps of a processing method provided by an embodiment of heavy-load stamping forming oil for a new energy battery case.
Fig. 2 is a schematic diagram of a performance test structure provided by an embodiment of heavy-duty stamping forming oil for a new energy battery case according to the present invention.
Fig. 3 is a schematic diagram of a proportioning structure of a specific implementation method provided by an embodiment of heavy-load stamping forming oil for a new energy battery case.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-3, the heavy-load stamping forming oil for the new energy battery case provided by the embodiment of the invention comprises the stamping forming oil, and is characterized in that the stamping forming oil consists of base oil, oiliness agent, synthetic ester, extreme pressure agent, antiwear reinforcing agent, antirust agent, antioxidant and oil mist inhibitor, and consists of the following components in percentage by weight: 50% -70% of base oil; 5% -10% of an oily agent; 8% -17% of synthetic ester; 4% -8% of extreme pressure agent; 1% -5% of an antiwear reinforcing agent; 2% -4% of antirust agent; 0.3% -1% of antioxidant; 3-7% of oil mist inhibitor, wherein the extreme pressure agent is one of active sulfur extreme pressure agent, medium carbon chain chlorinated paraffin and tricresyl phosphate, the weight percentage of the active sulfur extreme pressure agent, medium carbon chain chlorinated paraffin and tricresyl phosphate is 4-8%, the synthetic ester is one of special fatty acid ester and pentaerythritol oleate, the weight percentage of the special fatty acid ester and pentaerythritol oleate is 8-17%, the base oil is mineral oil with proper viscosity and deep refining, the antirust agent is barium dinonyl naphthalene sulfonate, the antirust agent can be formed by compounding a plurality of antirust agents, the oily agent is epoxy soybean oil, the antiwear reinforcing agent is an organic molybdenum compound, the antioxidant is 2, 6-di-tert-butyl paracresol, and the oil mist inhibitor is polyisobutene.
Specifically, in this embodiment, through setting up the stamping forming oil that adopts base oil, oiliness agent, synthetic ester, extreme pressure agent, wear-resistant reinforcement, rust inhibitor, antioxidant and oil mist inhibitor to constitute, can be when using, stamping oil can form one deck lubricating film on the metal surface, effectively reduce friction and wearing and tearing between metal and the mould, thereby extension mould's life improves quality and precision of stamping workpiece, can produce a large amount of heats in the punching process, use stamping oil can cool off effectively and reduce the temperature of work piece and mould, prevent deformation and hot crack's production, stamping oil has good washing and scouring action, can clear away oxide of metal surface, grease and impurity, keep mould and work piece clean, reduce the production of surface defect, rust inhibitor and preservative in the stamping oil can effectively protect the metal surface to receive oxidation and the influence of corruption, extension stamping workpiece's life, use professional stamping oil can reduce the friction and wearing and tearing of mould, reduce energy consumption, and improve production efficiency and work efficiency.
Working principle: the deep refined mineral oil is used as base oil, and the steel shell machine stamping forming oil is prepared by adding various additives such as an antioxidant, a composite antiwear agent, an antirust agent and the like, so that the working requirements of the steel shell machine can be met, and the problems of difficult processing, difficult cleaning of workpieces and easy oxidation of oil products can be effectively solved.
Example 1:
the processing method of the stamping forming oil comprises the following steps:
S1: pouring 54% of base oil and 10% of oiliness agent into a reaction kettle together, heating and stirring to mix the base oil and the oiliness agent to form initial oil;
S2: 15% of synthetic ester, 4% of antiwear reinforcing agent and 6% of extreme pressure agent are poured into a reaction kettle together for stirring, so that the mixture is mixed with the initial oil to form inferior oil;
S3: and (3) pouring 4% of antirust agent, 1% of antioxidant and 6% of oil mist inhibitor into a reaction kettle together for stirring, and mixing the antirust agent, the antioxidant and the oil mist inhibitor with the defective oil to form finished oil.
Example 2:
the processing method of the stamping forming oil comprises the following steps:
s1: pouring 61% of base oil and 8% of oiliness agent into a reaction kettle together, heating and stirring to mix the base oil and the oiliness agent to form initial oil;
S2: pouring 10% of synthetic ester, 4% of antiwear reinforcing agent and 6% of extreme pressure agent into a reaction kettle together for stirring, and mixing the mixture with the initial oil to form defective oil;
S3: and (3) pouring 4% of antirust agent, 1% of antioxidant and 6% of oil mist inhibitor into a reaction kettle together for stirring, and mixing the antirust agent, the antioxidant and the oil mist inhibitor with the defective oil to form finished oil.
Example 3:
the processing method of the stamping forming oil comprises the following steps:
S1: pouring 65% of base oil and 6% of oiliness agent into a reaction kettle together, heating and stirring to mix the base oil and the oiliness agent to form initial oil;
S2: pouring 8% of synthetic ester, 4% of antiwear reinforcing agent and 6% of extreme pressure agent into a reaction kettle together for stirring, and mixing the mixture with the initial oil to form inferior oil;
S3: and (3) pouring 4% of antirust agent, 1% of antioxidant and 6% of oil mist inhibitor into a reaction kettle together for stirring, and mixing the antirust agent, the antioxidant and the oil mist inhibitor with the defective oil to form finished oil.
After the results of the stamping forming oil prepared in the embodiment 1, the embodiment 2 and the embodiment 3 are detected, the stamping synthetic oil prepared in the embodiment 2 has the best effect, can effectively meet the working requirements of a steel shell machine, and solves the problems of difficult heavy load forming process, difficult cleaning of workpieces and easy oxidation of oil products.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The heavy-load stamping forming oil for the new energy battery shell comprises stamping forming oil and is characterized by comprising base oil, oiliness agent, synthetic ester, extreme pressure agent, antiwear reinforcing agent, antirust agent, antioxidant and oil mist inhibitor, and the heavy-load stamping forming oil comprises the following components in percentage by weight:
50% -70% of base oil;
5% -10% of an oily agent;
8% -17% of synthetic ester;
4% -8% of extreme pressure agent;
1% -5% of an antiwear reinforcing agent;
2% -4% of antirust agent;
0.3% -1% of antioxidant;
3% -7% of oil mist inhibitor.
2. The heavy-duty press molding oil for a new energy battery case according to claim 1, wherein the press molding oil processing method comprises the steps of:
s1: pouring the base oil and the oiliness agent into a reaction kettle together, heating and stirring to mix the base oil and the oiliness agent to form initial oil;
S2: pouring the synthetic ester, the antiwear reinforcing agent and the extreme pressure agent into a reaction kettle together for stirring, so that the synthetic ester, the antiwear reinforcing agent and the extreme pressure agent are mixed with the initial oil to form defective oil;
S3: and pouring the antirust agent, the antioxidant and the oil mist inhibitor into a reaction kettle together for stirring, so that the antirust agent, the antioxidant and the oil mist inhibitor are mixed with the defective oil to form finished oil.
3. The heavy-duty press forming oil for new energy battery cases according to claim 1, wherein the extreme pressure agent is one of an active sulfur extreme pressure agent, a medium carbon chain chlorinated paraffin and tricresyl phosphate.
4. The heavy-duty press molding oil for new energy battery cases according to claim 3, wherein the components of the active sulfur extreme pressure agent, the medium carbon chain chlorinated paraffin and the tricresyl phosphate are 4% -8% by weight.
5. The heavy duty press molding oil for new energy battery cases according to claim 1, wherein the synthetic ester is one of a special fatty acid ester and pentaerythritol oleate.
6. The heavy-duty press-molding oil for new energy battery cases according to claim 5, wherein the components of the specific fatty acid ester and pentaerythritol oleate are 8% -17% by weight.
7. The heavy duty press forming oil for new energy battery cases according to claim 1, wherein the base oil is a mineral oil deeply refined with a proper viscosity.
8. The heavy-duty press molding oil for the new energy battery case according to claim 1, wherein the rust inhibitor is barium dinonylnaphthalene sulfonate, and the rust inhibitor is formed by compounding a plurality of rust inhibitors.
9. The heavy-duty press molding oil for a new energy battery case according to claim 1, wherein the oiliness agent is epoxidized soybean oil and the antiwear reinforcing agent is an organomolybdenum compound.
10. The heavy-duty press molding oil for a new energy battery case according to claim 1, wherein the antioxidant is 2, 6-di-t-butyl-p-cresol, and the oil mist inhibitor is polyisobutylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410330526.XA CN118185691A (en) | 2024-03-22 | 2024-03-22 | Heavy-load stamping forming oil for new energy battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410330526.XA CN118185691A (en) | 2024-03-22 | 2024-03-22 | Heavy-load stamping forming oil for new energy battery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118185691A true CN118185691A (en) | 2024-06-14 |
Family
ID=91405545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410330526.XA Pending CN118185691A (en) | 2024-03-22 | 2024-03-22 | Heavy-load stamping forming oil for new energy battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118185691A (en) |
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- 2024-03-22 CN CN202410330526.XA patent/CN118185691A/en active Pending
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