CN105163539B - Zirconia ceramics rear cover with wireless charging function and its manufacturing method - Google Patents
Zirconia ceramics rear cover with wireless charging function and its manufacturing method Download PDFInfo
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- CN105163539B CN105163539B CN201510591221.5A CN201510591221A CN105163539B CN 105163539 B CN105163539 B CN 105163539B CN 201510591221 A CN201510591221 A CN 201510591221A CN 105163539 B CN105163539 B CN 105163539B
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- zirconia ceramics
- rear cover
- composite mortar
- backboard
- wireless charging
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Abstract
The invention discloses a kind of zirconia ceramics rear covers and its manufacturing method with wireless charging function, the zirconia ceramics rear cover is by zirconia ceramics backboard and the zirconia ceramics rear cover that obtains coated in the composite mortar cofiring on the zirconia ceramics backboard, the composite mortar is formed through sintering and the integrated Wireless charging coil of zirconia ceramics backboard, wherein the raw material for preparing the composite mortar includes silver powder 70~80%, graphene 2~5%, carbon nanotube 3~8%, glass powder 15~20% by weight percentage.The present invention can improve product wireless charging performance while realizing that product is lightening.
Description
Technical field
The present invention relates to wireless charging device, especially a kind of zirconia ceramics rear cover with wireless charging function and its
Manufacturing method.
Background technology
Currently, realizing that the common method of mobile phone wireless charge function is to be adhered to conductive coil on battery of mobile phone backboard in fact
Existing electromagnetic conversion, achievees the purpose that wireless charging.The prior art has the following problems：1. occupying mobile phone space, current conduction
Coil is adhered to using conductive filament on mobile phone backboard, and the space of interior of mobile phone can be occupied；2. heat dissipation effect is poor,
Easily fever.Conductive coil uses bonding mode with mobile phone backboard, can cause overall thermal conductivity that can decline, influence properties of product.
Invention content
It is a primary object of the present invention to overcome the deficiencies of the prior art and provide a kind of oxidation with wireless charging function
Zircon ceramic rear cover and its manufacturing method are realized and improve its wireless charging performance while product is lightening.
To achieve the above object, the present invention uses following technical scheme：
A kind of zirconia ceramics rear cover with wireless charging function is by zirconia ceramics backboard and to be coated in the oxygen
The zirconia ceramics rear cover changed the composite mortar cofiring on zircon ceramic backboard and obtained, the composite mortar is formed through sintering and institute
The integrated Wireless charging coil of zirconia ceramics backboard is stated, wherein the raw material for preparing the composite mortar includes with weight percent
Than the silver powder 70~80% of meter, graphene 2~5%, carbon nanotube 3~8%, glass powder 15~20%.
Further：
The raw material for preparing the composite mortar include silver powder 70~75% by weight percentage, graphene 2~3%,
Carbon nanotube 5~8%, glass powder 15~20%.
The raw material for preparing the composite mortar include silver powder 75~80% by weight percentage, graphene 3~5%,
Carbon nanotube 3~5%, glass powder 15~20%.
The composite mortar is by the raw material after ball milling mixing organic solvent to be added, system is sanded in nanometer sand mill
For what is obtained.
The organic solvent is terpinol or ethyl cellulose.
The composite mortar is printed in a manner of silk-screen printing on the zirconia ceramics backboard to be sintered.
The silver powder is nano-silver powder.
The zirconia ceramics rear cover is the rear cover of mobile phone or tablet computer or intelligent wearable device.
A kind of manufacturing method preparing aforementioned any zirconia ceramics rear cover, includes the following steps：
1) composite mortar is prepared；
2) composite mortar is coated on the zirconia ceramics backboard；
3) the zirconia ceramics backboard coated with the composite mortar is sintered, is formed and is made pottery with the zirconium oxide
The integrated Wireless charging coil of porcelain backing.
Further, in step 3), it is first coated with the zirconia ceramics backboard drying of the composite mortar, then will
The zirconia ceramics backboard after drying is sintered in high temperature sintering furnace with 800~850 DEG C of temperature.
Beneficial effects of the present invention：
The present invention uses the height that the raw material containing silver powder, graphene, carbon nanotube, glass powder is prepared according to present invention proportioning
Performance composite mortar, by this high-performance composite mortar and zirconia ceramics backboard one cofiring, realize Wireless charging coil with
Traditional wireless coil production method is compared in the integration of zirconia ceramics backboard (can be used as battery cover), and the present invention can pole
The lightening of product is realized well.Using zirconia ceramics material as battery back-sheet, with nano-silver powder, graphene, carbon nanometer
The highly conductive composite mortar that pipe, glass powder are formulated forms charge coil through high temperature sintering, and the present invention can realize charge coil
With the seamless combination of zirconia ceramics backboard, the electric conductivity of product is improved, electric energy conversion efficiency can be improved to 70% or more, and
, the distinguishing features such as safety in utilization high fast with heat diffusion, can realize the wireless charging of the products such as mobile phone, intelligent wearable device
Electricity Functional, and fully ensured that the stability of signal transmission, there are huge market prospects.
Specific implementation mode
It elaborates below to embodiments of the present invention.It is emphasized that following the description is only exemplary,
The range being not intended to be limiting of the invention and its application.
In one embodiment, a kind of zirconia ceramics rear cover with wireless charging function, is by zirconia ceramics
Backboard and the zirconia ceramics rear cover obtained coated in the composite mortar cofiring on the zirconia ceramics backboard, it is described compound
Slurry is formed through sintering and the integrated Wireless charging coil of zirconia ceramics backboard, wherein preparing the composite mortar
Raw material include silver powder 70~80% by weight percentage, graphene 2~5%, carbon nanotube 3~8%, glass powder 15~
20%.The silver powder preferably uses nano-silver powder.Zirconia ceramics rear cover preferably uses nano zirconia ceramic material.The oxygen
Change the rear cover that zircon ceramic rear cover can be the electronic products such as mobile phone, tablet computer or intelligent wearable device.
In an advantageous embodiment, the raw material for preparing the composite mortar include silver powder 70 by weight percentage~
75%, graphene 2~3%, carbon nanotube 5~8%, glass powder 15~20%.
In another preferred embodiment, the raw material for preparing the composite mortar includes silver powder 75 by weight percentage
~80%, graphene 3~5%, carbon nanotube 3~5%, glass powder 15~20%.
In an advantageous embodiment, the composite mortar is that the raw material is added after organic solvent in nanometer sand mill
What middle sand milling was prepared.
In a preferred embodiment, the organic solvent is terpinol or ethyl cellulose.
In a preferred embodiment, the composite mortar is that the zirconium oxide to be sintered is printed in a manner of silk-screen printing
In pottery backboard.
In an advantageous embodiment, a kind of manufacturing method preparing zirconia ceramics rear cover, includes the following steps：
1. by nano-silver powder 70~80%, graphene 2~5%, carbon nanotube 3~8%, glass by weight percentage
Powder 15~20% mixes, through ball milling mixing.
2. the organic solvents such as terpinol or ethyl cellulose are added, prepare and complete after the completion of being sanded in nanometer sand mill.
3. composite mortar made above is printed on by way of silk-screen printing on zirconia ceramics backboard.
4. the zirconia ceramics backboard for being printed on composite mortar made above is dried in an oven.
5. the zirconia ceramics backboard after the above drying is sintered in high temperature sintering furnace at 800~850 DEG C so that compound
Slurry forms the Wireless charging coil being combined as a whole with zirconia ceramics backboard, and the two has good binding force.
The preparation method of offer is be provided below by more specific embodiment.
Embodiment one：
1. according to the ratio by nano-silver powder 70~75%, graphene 2~3%, carbon nanotube 5~8%, glass powder 15~20%
Mixing, through ball milling mixing.
It is completed 2. being added after the completion of the organic solvents such as terpinol or ethyl cellulose are sanded in nanometer sand mill to prepare.
3. the mobile phone zirconia ceramics that composite mortar made above is printed on to making by way of silk-screen printing is carried on the back
On plate.
4. the zirconia ceramics backboard for being printed on composite mortar made above is dried in an oven.
5. the zirconia ceramics backboard after the above drying is sintered in high temperature sintering furnace at 800~850 DEG C so that compound
Slurry forms the Wireless charging coil being combined as a whole with zirconia ceramics backboard, and the two has good binding force.
It is set in special test using the wireless charging mobile phone zirconia ceramics rear cover prepared in the above manner as battery cover
It tested, examined on standby, measure R=0.45 ohm of the resistance of Wireless charging coil, electric energy conversion efficiency >=70%.
Embodiment two：
1. according to the ratio by nano-silver powder 75~80%, graphene 3~5%, carbon nanotube 3~5%, glass powder 15~20%
Mixing, through ball milling mixing.
It is completed 2. being added after the completion of the organic solvents such as terpinol or ethyl cellulose are sanded in nanometer sand mill to prepare.
3. the mobile phone zirconia ceramics that composite mortar made above is printed on to making by way of silk-screen printing is carried on the back
On plate.
4. the zirconia ceramics backboard for being printed on composite mortar made above is dried in an oven.
5. the zirconia ceramics backboard after the above drying is sintered in high temperature sintering furnace at 800~850 DEG C so that compound
Slurry forms the Wireless charging coil being combined as a whole with zirconia ceramics backboard, and the two has good binding force.
It is set in special test using the wireless charging mobile phone zirconia ceramics rear cover prepared in the above manner as battery cover
It tested, examined on standby, measure R=0.43 ohm of the resistance of Wireless charging coil, electric energy conversion efficiency >=72%.
The above content is specific/preferred embodiment further description made for the present invention is combined, cannot recognize
The specific implementation of the fixed present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs,
Without departing from the inventive concept of the premise, some replacements or modification can also be made to the embodiment that these have been described,
And these are substituted or variant all shall be regarded as belonging to protection scope of the present invention.
Claims (10)
1. a kind of zirconia ceramics rear cover with wireless charging function, which is characterized in that be by zirconia ceramics backboard and painting
The composite mortar cofiring overlayed on the zirconia ceramics backboard and the zirconia ceramics rear cover obtained, the composite mortar is through burning
Knot is formed and the integrated Wireless charging coil of zirconia ceramics backboard, wherein the raw material for preparing the composite mortar includes
Silver powder 70~80%, graphene 2~5%, carbon nanotube 3~8%, glass powder 15~20% by weight percentage.
2. zirconia ceramics rear cover as described in claim 1, which is characterized in that the raw material for preparing the composite mortar include with
Silver powder 70~75%, graphene 2~3%, carbon nanotube 5~8%, the glass powder 15~20% of weight percent meter.
3. zirconia ceramics rear cover as described in claim 1, which is characterized in that the raw material for preparing the composite mortar include with
Silver powder 75~80%, graphene 3~5%, carbon nanotube 3~5%, the glass powder 15~20% of weight percent meter.
4. zirconia ceramics rear cover as described in any one of claims 1 to 3, which is characterized in that the composite mortar is by institute
Raw material is stated after ball milling mixing, organic solvent is added is sanded in nanometer sand mill and be prepared.
5. zirconia ceramics rear cover as claimed in claim 4, which is characterized in that the organic solvent is that terpinol or ethyl are fine
Dimension element.
6. zirconia ceramics rear cover as described in any one of claims 1 to 3, which is characterized in that the composite mortar is with silk
The mode of wire mark brush is printed on the zirconia ceramics backboard to be sintered.
7. zirconia ceramics rear cover as described in any one of claims 1 to 3, which is characterized in that the silver powder is nano-silver powder.
8. zirconia ceramics rear cover as described in any one of claims 1 to 3, which is characterized in that the zirconia ceramics rear cover
For mobile phone or tablet computer or the rear cover of intelligent wearable device.
9. a kind of preparing the manufacturing method such as claim 1 to 8 any one of them zirconia ceramics rear cover, which is characterized in that
Include the following steps：
1) composite mortar is prepared；
2) composite mortar is coated on the zirconia ceramics backboard；
3) the zirconia ceramics backboard coated with the composite mortar is sintered, is formed and is carried on the back with the zirconia ceramics
The integrated Wireless charging coil of plate.
10. the manufacturing method of zirconia ceramics rear cover as claimed in claim 9, which is characterized in that, first will coating in step 3)
There is the zirconia ceramics backboard of the composite mortar to dry, then the zirconia ceramics backboard after drying is burnt in high temperature
It is sintered with 800~850 DEG C of temperature in freezing of a furnace.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510591221.5A CN105163539B (en) | 2015-09-16 | 2015-09-16 | Zirconia ceramics rear cover with wireless charging function and its manufacturing method |
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| CN201510591221.5A CN105163539B (en) | 2015-09-16 | 2015-09-16 | Zirconia ceramics rear cover with wireless charging function and its manufacturing method |
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| CN105163539B true CN105163539B (en) | 2018-10-02 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951093A (en) * | 2016-04-26 | 2016-09-21 | 李波 | Precious metal plating method |
| CN106790790B (en) * | 2016-12-01 | 2023-08-04 | 东莞华晶粉末冶金有限公司 | Ceramic rear cover of wireless charging terminal and manufacturing method thereof |
| CN107623765B (en) * | 2017-08-21 | 2020-10-23 | 东莞华晶粉末冶金有限公司 | Electronic product ceramic rear cover with wireless charging function and manufacturing method thereof |
| WO2019134073A1 (en) | 2018-01-03 | 2019-07-11 | 深圳顺络电子股份有限公司 | Rear ceramic cover for electronic device, and electronic device |
| CN108767422A (en) * | 2018-04-11 | 2018-11-06 | 深圳市可信华成通信科技有限公司 | A kind of ceramic antenna production method and ceramic antenna and ceramic rear cover |
| CN109265198A (en) * | 2018-09-27 | 2019-01-25 | 江苏金琥珀光学科技股份有限公司 | A kind of ceramic rear cover and its processing method of mobile phone |
| CN109896854B (en) * | 2019-03-01 | 2020-10-30 | 上海景瑞阳实业有限公司 | Electrode material and preparation method and application thereof |
| CN111574222A (en) * | 2020-05-17 | 2020-08-25 | 陕西励峰德精密陶瓷科技有限公司 | Technology for preparing ceramic rear cover through grouting |
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| CN101847510A (en) * | 2009-03-27 | 2010-09-29 | 罗夔 | Conductive paste for multilayer ceramic capacitor and preparation method thereof |
| CN103839605A (en) * | 2014-02-26 | 2014-06-04 | 华中科技大学 | Electrocondution slurry and preparation method and application of electrocondution slurry |
| CN204578186U (en) * | 2015-03-09 | 2015-08-19 | 正达国际光电股份有限公司 | Portable electronic device with wireless charging function and glass back cover structure thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20120300421A1 (en) * | 2011-05-23 | 2012-11-29 | Medtronic, Inc. | Electrical feedthrough for implantable medical device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847510A (en) * | 2009-03-27 | 2010-09-29 | 罗夔 | Conductive paste for multilayer ceramic capacitor and preparation method thereof |
| CN103839605A (en) * | 2014-02-26 | 2014-06-04 | 华中科技大学 | Electrocondution slurry and preparation method and application of electrocondution slurry |
| CN204578186U (en) * | 2015-03-09 | 2015-08-19 | 正达国际光电股份有限公司 | Portable electronic device with wireless charging function and glass back cover structure thereof |
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Address after: 523843 Changan City, Guangdong Province town on the corner management area Applicant after: Guangdong wins smart group Limited by Share Ltd Applicant after: Dongguan Hua Jing powder metallurgy company limited Address before: 523843 Changan City, Guangdong Province town on the corner management area Applicant before: Dongguan Janus Precision Components Co., Ltd. Applicant before: Dongguan Hua Jing powder metallurgy company limited |
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Effective date of registration: 20190812 Address after: 523843 No. 2 Weifeng Road, Niushan External Economic Industrial Park, Dongcheng Street, Dongguan City, Guangdong Province Patentee after: Dongguan Hua Jing powder metallurgy company limited Address before: 523843 Changan City, Guangdong Province town on the corner management area Co-patentee before: Dongguan Hua Jing powder metallurgy company limited Patentee before: Guangdong wins smart group Limited by Share Ltd |