CN209388097U - 多媒体投影装置 - Google Patents
多媒体投影装置 Download PDFInfo
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- CN209388097U CN209388097U CN201920315916.4U CN201920315916U CN209388097U CN 209388097 U CN209388097 U CN 209388097U CN 201920315916 U CN201920315916 U CN 201920315916U CN 209388097 U CN209388097 U CN 209388097U
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- noise reduction
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- 230000009467 reduction Effects 0.000 claims abstract description 42
- 239000003365 glass fiber Substances 0.000 claims abstract description 12
- 238000002844 melting Methods 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 238000005187 foaming Methods 0.000 claims abstract description 11
- 239000005030 aluminium foil Substances 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 10
- 239000006260 foam Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 230000008018 melting Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Application Number | Priority Date | Filing Date | Title |
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CN201920315916.4U CN209388097U (zh) | 2019-03-13 | 2019-03-13 | 多媒体投影装置 |
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CN201920315916.4U CN209388097U (zh) | 2019-03-13 | 2019-03-13 | 多媒体投影装置 |
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CN209388097U true CN209388097U (zh) | 2019-09-13 |
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CN201920315916.4U Expired - Fee Related CN209388097U (zh) | 2019-03-13 | 2019-03-13 | 多媒体投影装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113763768A (zh) * | 2020-06-02 | 2021-12-07 | 璞洛泰珂(上海)智能科技有限公司 | 一种空中交通管制360度视觉仿真装置 |
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2019
- 2019-03-13 CN CN201920315916.4U patent/CN209388097U/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113763768A (zh) * | 2020-06-02 | 2021-12-07 | 璞洛泰珂(上海)智能科技有限公司 | 一种空中交通管制360度视觉仿真装置 |
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GR01 | Patent grant | ||
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PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multimedia projection device and operation method thereof Effective date of registration: 20200724 Granted publication date: 20190913 Pledgee: Donghai Financial Leasing Co.,Ltd. Pledgor: NINGBO QTING VISION TECHNOLOGY Co.,Ltd. Registration number: Y2020330000542 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231023 Granted publication date: 20190913 Pledgee: Donghai Financial Leasing Co.,Ltd. Pledgor: NINGBO QTING VISION TECHNOLOGY Co.,Ltd. Registration number: Y2020330000542 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190913 |
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CF01 | Termination of patent right due to non-payment of annual fee |