http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111935605-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R2231-001 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R2307-025 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R31-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B25-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-365 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04R7-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B25-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R31-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B25-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B25-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R7-10 |
| filingDate | 2020-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111935605-B |
| titleOfInvention | Composite diaphragm of sound production device, preparation method of composite diaphragm and sound production device |
| abstract | The invention discloses a composite diaphragm of a sound generating device, a preparation method thereof and the sound generating device, wherein the composite diaphragm comprises the following steps: compounding the nitrile rubber layer and the engineering plastic layer together to form a composite film; and carrying out molding treatment on the composite membrane to form a composite diaphragm, wherein in the molding treatment, the engineering plastic layer is attached to a molding die. According to the composite diaphragm, the nitrile rubber layer and the engineering plastic layer are compounded to form a composite structure, and the inventor finds that the composite structure generates function complementation and synergy, obtains unexpected technical effects and effectively improves the sensitivity; and the composite diaphragm is in the forming treatment, the engineering plastic layer is attached to the forming die, so that the problem of difficult demoulding of the single-layer diaphragm of the nitrile rubber layer in the forming process is solved, the warping deformation of the diaphragm product is reduced, and the appearance size of the diaphragm meets the design and use requirements. |
| priorityDate | 2020-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 55.