CN106061220B - Electronic device circuitry system architecture and laser cinema equipment - Google Patents
Electronic device circuitry system architecture and laser cinema equipment Download PDFInfo
- Publication number
- CN106061220B CN106061220B CN201610446214.0A CN201610446214A CN106061220B CN 106061220 B CN106061220 B CN 106061220B CN 201610446214 A CN201610446214 A CN 201610446214A CN 106061220 B CN106061220 B CN 106061220B
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- plate
- circuit board
- bottom plate
- electronic device
- panel
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0064—Earth or grounding circuit
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention provides a kind of electronic equipment circuit system framework and laser cinema equipment, the electronic device circuitry system architecture includes: the Horizon panel and at least two circuit boards being installed in casting of electronic device, the Horizon panel has the side plate of bottom plate and the vertical bottom plate, at least two circuit board is respectively arranged on the bottom plate and the side plate, by least two circuit board ground.Electronic device circuitry system architecture provided in an embodiment of the present invention constitutes the surface plate in large area completely unified by bottom plate and side plate, can provide complete earth-return for the reflux of electric signal, prevent electronic equipment from leading to the problem of serious EMI.
Description
Technical field
The present invention relates to electronics fields more particularly to a kind of electronic equipment circuit system framework and laser movie theatre to set
It is standby.
Background technique
With the development of modernized society, the function of home electronics is more and more abundant;Meanwhile for the ease of installation and
It uses, the volume of electronic equipment is also smaller and smaller.For example, the laser movie theatre TV being concerned at present, has both movie theatre, intelligence electricity
Depending on and the functions such as home audio, welcome by household and business market.
Laser movie theatre tv product uses the structural form of projector, but has the function of smart television simultaneously,
Its inside structure further includes power panel, TV plate, display board, wireless guarantor other than the modules such as light engine, radiator, fan
Very numerous circuit block such as (Wireless Fidelity, referred to as: WIFI) & bluetooth plate, Karaoke plate, terminal board, internal junction
Structure layout is complicated.Since the outer dimension of laser movie theatre tv product is smaller, the arrangement of various circuit blocks and ground connection are relatively more tired
It is difficult.
Fig. 1 is the schematic diagram of the circuit system framework of prior art laser movie theatre tv product.Referring to Fig. 1, existing skill
In art, the mode that multiple circuit boards 100 inside laser movie theatre tv product generally use multiple-level stack is arranged, i.e., multiple circuits
Plate 100 is placed along the direction parallel interval of perpendicular circuit board, the bracket of each circuit board 100 circuit board parallel with one
110 connect, and are connected between each bracket 110 by screw 120, realize circuit board ground.
But in the prior art, the bracket connecting with each circuit board is exactly the ground level of circuit board, and every two interval is set
Earth-return is formed in such a way that screw pole connects between the ground level set, is point contact between ground and ground, earth-return is caused to hinder
Anti- big, the electric signal of circuit board is easy to radiate by space, and other electronic equipments are generated with more serious electromagnetic interference
(Electromagnetic Interference, referred to as: EMI).
Summary of the invention
The embodiment of the present invention provides a kind of electronic equipment circuit system framework and laser cinema equipment, for solving existing skill
It is serious that the earth-return impedance between circuit board in art inside electronic equipment and laser cinema equipment causes greatly electronic equipment to generate
Electromagnetic interference the problem of.
In a first aspect, the embodiment of the present invention provides a kind of electronic equipment circuit system framework, comprising: be installed on electronic equipment
The intracorporal Horizon panel of shell and at least two circuit boards, the Horizon panel have the side plate of bottom plate and the vertical bottom plate, institute
It states at least two circuit boards to be respectively arranged on the bottom plate and the side plate, by least two circuit board ground.
Optionally, the side plate has the first mounting plate and the second mounting plate, and first mounting plate is fixed on institute in parallel
It states on the bottom plate of Horizon panel, at least one described circuit board is installed on second mounting plate.
Optionally, conducting medium is filled between first mounting plate and the bottom plate of the Horizon panel.
Optionally, the bottom plate of the Horizon panel one side opposite with the side plate is equipped at least one metallic channel, described
The signal wire of at least two circuit boards is contained in the metallic channel.
Optionally, outlet hole, the signal of at least two circuit board are offered on the bottom plate of the Horizon panel
Line passes through the outlet hole and is contained in the metallic channel.
Optionally, the bottom plate of the Horizon panel is equipped at least one holding firmware, and the holding firmware is fastened in institute
Metallic channel two sides are stated, the signal wire is fixed in the metallic channel.
Optionally, the side plate of the Horizon panel is at least two, and at least two side plate is individually fixed in institute
The two opposite sides edge of the bottom plate of Horizon panel is stated, the circuit board installed on the bottom plate is located at least two phase
To between the side plate of setting.
Optionally, a circuit board is fixed in the two sides of one of them side plate of the Horizon panel respectively, described
Circuit board is parallel with the side plate.
Optionally, the circuit board installed on the bottom plate of the Horizon panel is power panel.
Second aspect, the embodiment of the present invention also provide a kind of laser cinema equipment, comprising: shell, and it is installed on the shell
Intracorporal circuit system framework, the circuit system framework include being installed on the intracorporal Horizon panel of the shell and at least two electricity
Road plate, the Horizon panel have the side plate of bottom plate and the vertical bottom plate, and at least two circuit board is respectively arranged in institute
It states on bottom plate and the side plate, by least two circuit board ground
Electronic device circuitry system architecture provided by the invention and laser cinema equipment constitute one by bottom plate and side plate
Completely unified surface plate in large area, so that the electron plate being fixed on the bottom plate and side plate can be directly connected to Horizon
Face reduces the impedance of earth-return, and complete earth-return can be provided for the reflux of electric signal, meanwhile, by by signal wire edge
Land surface plate bottom arrangement, provide shortest path for the earth-return of electric signal, Horizon panel of large area itself is to each
Kind signal lead also plays good shielding action, to prevent electronic equipment from leading to the problem of serious EMI.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do one simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the schematic diagram of the circuit system framework of prior art laser movie theatre tv product;
Fig. 2 is the structural schematic diagram of electronic device circuitry of embodiment of the present invention system architecture;
Fig. 3 is the structural schematic diagram of the Horizon panel in electronic device circuitry of embodiment of the present invention system architecture;
Fig. 4 is the assembling schematic diagram of Horizon panel and circuit board in electronic device circuitry of embodiment of the present invention system architecture;
Fig. 5 is the structural representation of another angle of Horizon panel in electronic device circuitry of embodiment of the present invention system architecture
Figure;
Fig. 6 is the structural schematic diagram of laser of embodiment of the present invention cinema equipment.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of electronic equipment circuit system framework, for for multi-functional and small volume
Each circuit board in electronic equipment provides unified continuous ground level, and the reflux for the electric signal on circuit board provides completely
Circuit allows electric signal to flow back into ground with lower impedance loop, reduces the coupling to space, so that it is dry to reduce electromagnetic radiation
The problem of disturbing (Electromagnetic Interference, referred to as: EMI).
Embodiment one
Fig. 2 is the structural schematic diagram of electronic device circuitry of embodiment of the present invention system architecture.Fig. 3 is electricity of the embodiment of the present invention
The structural schematic diagram of Horizon panel in sub- circuitry system architecture.Fig. 4 is electronic device circuitry of embodiment of the present invention system
The assembling schematic diagram of Horizon panel and circuit board in framework.
Please see Fig. 2 to Fig. 4, electronic device circuitry system architecture provided in an embodiment of the present invention, comprising: be installed on electronics
Horizon panel 20 and at least two circuit boards 30 in apparatus casing 10, the Horizon panel 20 are described with bottom plate 21 and vertically
The side plate 22 of bottom plate 21, at least two circuit board 30 are respectively arranged on the bottom plate 21 and the side plate 22, will be described
At least two circuit boards 30 ground connection.
Wherein, the side plate 22 of the Horizon panel 20 can be integrally formed with the bottom plate 21, can also pass through connection
Part, such as screw are fixed together with the bottom plate 21.The side plate 22 can be set in the two opposite sides edge of the bottom plate 21,
U-shaped Horizon panel 20 is collectively formed with the bottom plate 21.Optionally, in order to realize the good ground connection of circuit board, the Horizon
The bottom plate 21 and the side plate 22 of panel 20 are conductive metal sheet.It is appreciated that the Horizon panel 20 may be
Other conductive materials.
At least two circuit board 30 can be fixed on the bottom plate 21 or the institute of the Horizon panel 20 by screw
It states on side plate 22, at least two circuit board 30 be connect with the Horizon panel 20, so that on the circuit board 30
Electric signal flow back into ground by the Horizon panel 20.
Electronic device circuitry system architecture provided in an embodiment of the present invention, it is common by the bottom plate 21 and the side plate 22
A complete continuous Horizon panel 20 is formed, unified plane in large area is formed, reduces the impedance of earth-return, meanwhile,
The circuit board 30 is directly fixed on the Horizon panel 20, reduces electric signal to the circuit between ground level, Ke Yiyou
Effect ground inhibits the EMI problem of the electronic equipment.
On the basis of the above embodiments, in order to simplify the production technology of the ground level, and increase in electronic equipment
Each circuit board Installation Flexibility, the side plate 22 of the Horizon panel 20 can be independent two with the bottom plate 21
Point, it is linked together by fixing piece.
Specifically, the side plate 22 has the first mounting plate 221 and the second mounting plate 223, and first mounting plate 221 is flat
Row is fixed on the bottom plate 21 of the Horizon panel 20, at least one described circuit is installed on second mounting plate 223
Plate 30.First mounting plate 221 and second mounting plate 223 can be integrally formed, and constitute the side plate 22 of L-type.
It, can be with the bottom plate 21 since the bottom plate 21 of first mounting plate 221 and the Horizon panel 20 is plane contact
A continuous ground level is formed, the impedance loop of ground level is reduced, provides good earth-return for electric signal, it is suppressed that
The EMI problem of circuit board.
Further, in order to guarantee that first mounting plate 221 and the bottom plate 21 of the Horizon panel 20 are in close contact, shape
At unified continuous ground level, complete earth-return, first mounting plate 221 and the Horizon are provided for the reflux of electric signal
Conducting medium is filled between the bottom plate 21 of panel 20.
Fig. 5 is the structural representation of another angle of Horizon panel in electronic device circuitry of embodiment of the present invention system architecture
Figure.
Please refer to Fig. 5, on the basis of the above embodiments, in order to keep the signal wire of each circuit board of electronic equipment neat
Arrangement guarantees that the consistency of EMI index, the bottom plate 21 of the Horizon panel 20 one side opposite with the side plate 22 are equipped at least
One metallic channel 23, the signal wire 31 of at least two circuit board 30 are contained in the metallic channel 23.By at the bottom
The metallic channel 23 is set on plate 21, allows the signal wire 31 of all circuit boards 30 according to fixed route and other circuits
Plate connection prevents the phenomenon that signal wire connection is chaotic in electronic equipment, and signal wire is enable to be close to ground level arrangement, is
The earth-return of electric signal provides shortest path, while effectively being shielded by ground level to signal wire, further presses down
The EMI problem of electronic equipment is made.
Specifically, can be according to the number of the connecting line quantity of the circuit board 30, described in the Horizon panel 20
21 bottom of bottom plate reserves the conducting wire slot space that can accommodate respective numbers signal wire enough, and the signal wire between circuit board can be with
In 23 interior cabling of metallic channel.When production, harness can be managed in advance in the metallic channel 23, that is, pass through " built-in line "
Mode reduce production complexity.Meanwhile all circuit board signal lines cabling below ground level, it avoids legacy system and sets
In meter in the machine of electronic equipment space " every sky " cabling mode, easy operation and the system for realizing production technology are beautiful,
Make the unification of the available higher degree of the consistency of cabling, to increase the consistency of EMI index.
On the basis of the above embodiments, in order to make the bottom of the signal wire on circuit board not to the Horizon panel 20
The other electron component installed on plate 21 interferes, and offers outlet hole 24 on the bottom plate 21 of the Horizon panel 20,
The signal wire 31 of at least two circuit board 30 passes through the outlet hole 24 and is contained in the metallic channel 23.In this way, all
Signal wire 31 be connected on each circuit board 30 on the bottom plate 21 from the lower section of the bottom plate 21, without occupying the bottom plate
The space of 21 tops avoids generating interference to the electronic component installed above the bottom plate 21.
On the basis of the above embodiments, in order to guarantee that the signal wire 31 can firmly be contained in the metallic channel 23
Interior, the bottom plate 21 of the Horizon panel 20 is equipped at least one holding firmware 25, and the holding firmware 25 is fastened in the conducting wire
The signal wire 31 is fixed in the metallic channel 23 by 23 two sides of slot.Alternatively it is also possible to directly pass through adhesive tape for the letter
Number line 31 is fixed in the metallic channel 23 of the bottom plate 21.
On the basis of the above embodiments, in order to make full use of the space in casting of electronic device 10, reduce electronic equipment
Volume, the side plate 22 of the Horizon panel 20 is at least two, and at least two side plate 22 is individually fixed in described
The two opposite sides edge of the bottom plate 21 of Horizon panel 20, the circuit board 30 installed on the bottom plate 21 be located at it is described at least
Between two side plates 22 being oppositely arranged.Specifically, the circuit board installed on the bottom plate 21 of the Horizon panel 20
30 be power panel.Optionally, the circuit board installed on the bottom plate 21 and the side plate 22 of the Horizon panel 20 is also
It can be any one in power panel, TV plate, display board, Karaoke plate or Wireless Fidelity bluetooth plate.
On the basis of the above embodiments, in order to further utilize the space in the casting of electronic device 10, describedly
A circuit board 30, the circuit board 30 and the side are fixed in the two sides of one of them of surface plate 20 side plate 22 respectively
Plate 22 is parallel.By being respectively mounted circuit board 30 in the two sides of one block of side plate 22, two pieces of circuit boards 30 can be made while being connected to
Ground saves the space of the electronic equipment internal.
Electronic device circuitry system architecture provided in an embodiment of the present invention constitutes a complete unification by bottom plate and side plate
Surface plate in large area reduce so that the electron plate being fixed on the bottom plate and side plate can be directly connected to ground level
The impedance of earth-return, can provide complete earth-return for the reflux of electric signal, meanwhile, by by signal wire along ground level
The bottom of plate arranges, and provides shortest path for the earth-return of electric signal, Horizon panel of large area itself walks various signals
Line also plays good shielding action, to inhibit the EMI phenomenon of signal wire.
Specifically, the electronic equipment in above-described embodiment can be laser cinema equipment, such as laser movie theatre tv product.
Embodiment two
Fig. 6 is the structural schematic diagram of laser of embodiment of the present invention cinema equipment.
Referring to Fig. 6, laser cinema equipment provided in an embodiment of the present invention, comprising: shell 610, the bottom of the shell 610
Horizon panel is installed on seat, the Horizon panel has the side plate 622 of bottom plate 621 and the vertical bottom plate 621.The bottom plate
Light source 630, ray machine 631, fan 632, radiator 633, display board 634, TV plate 635, audio plate 636, nothing are installed on 621
Line fidelity & bluetooth plate 637 and power panel 638 etc..Wherein, the display board 634, TV plate 635, audio plate 636, wireless guarantor
Multiple circuit boards such as true & bluetooth plate 637 are individually fixed on multiple side plates 622 of the vertical bottom plate 621, by the electricity
Road plate earthing.So that the multiple circuit board is arranged in the two sides of the shell 610, without occupying enclosure interior space,
Convenient for installing the biggish electronic component of other volumes inside housings, so that the internal structure of laser movie theatre TV is more compact,
Reduce the overall volume of laser movie theatre tv product.Simultaneously as the multiple side plate 622 is connected as one with the bottom plate 621
A entirety forms the continuous surface plate in large area completely unified, so that being fixed on the bottom plate 621 and side plate 622
On circuit board can be directly connected to ground level, reduce the impedance of earth-return, can be provided completely for the reflux of electric signal
Earth-return, thus suppression circuit plate generate EMI phenomenon.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement;And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of electronic equipment circuit system framework characterized by comprising the Horizon panel being installed in casting of electronic device
And at least two circuit boards, the Horizon panel have the side plate of bottom plate and the vertical bottom plate, at least two circuit board
It is respectively arranged on the bottom plate and the side plate, by least two circuit board ground;
The side plate has the first mounting plate and the second mounting plate, and first mounting plate is fixed on the Horizon panel in parallel
On the bottom plate, at least one described circuit board is installed on second mounting plate.
2. electronic device circuitry system architecture according to claim 1, which is characterized in that first mounting plate with it is described
Conducting medium is filled between the bottom plate of Horizon panel.
3. electronic device circuitry system architecture according to claim 1 or 2, which is characterized in that the bottom of the Horizon panel
The plate one side opposite with the side plate is equipped at least one metallic channel, and the signal wire of at least two circuit board is contained in described
In metallic channel.
4. electronic device circuitry system architecture according to claim 3, which is characterized in that the bottom of the Horizon panel
Outlet hole is offered on plate, the signal wire of at least two circuit board passes through the outlet hole and is contained in the metallic channel.
5. electronic device circuitry system architecture according to claim 4, which is characterized in that the bottom of the Horizon panel
Plate is equipped at least one holding firmware, and the holding firmware is fastened in the metallic channel two sides, the signal wire is fixed on described
In metallic channel.
6. electronic device circuitry system architecture according to claim 1 or 2, which is characterized in that the institute of the Horizon panel
Stating side plate is at least two, and at least two side plate is individually fixed in the two opposite sides of the bottom plate of the Horizon panel
Edge, the circuit board installed on the bottom plate is between described at least two side plates being oppositely arranged.
7. electronic device circuitry system architecture according to claim 6, which is characterized in that wherein the one of the Horizon panel
A circuit board is fixed in the two sides of a side plate respectively, and the circuit board is parallel with the side plate.
8. electronic device circuitry system architecture according to claim 6, which is characterized in that the bottom of the Horizon panel
The circuit board installed on plate is power panel.
9. a kind of laser cinema equipment characterized by comprising shell, and it is installed on the intracorporal circuit system framework of the shell,
The circuit system framework includes being installed on the intracorporal Horizon panel of the shell and at least two circuit boards, the Horizon panel tool
There is the side plate of bottom plate and the vertical bottom plate, at least two circuit board is respectively arranged on the bottom plate and the side plate,
By at least two circuit board ground;
The side plate has the first mounting plate and the second mounting plate, and first mounting plate is fixed on the Horizon panel in parallel
On the bottom plate, at least one described circuit board is installed on second mounting plate.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610446214.0A CN106061220B (en) | 2016-06-20 | 2016-06-20 | Electronic device circuitry system architecture and laser cinema equipment |
CN201910335531.9A CN110113923B (en) | 2016-06-20 | 2016-06-20 | Laser cinema equipment |
CN201910469021.0A CN110213953A (en) | 2016-06-20 | 2016-06-20 | Laser cinema equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610446214.0A CN106061220B (en) | 2016-06-20 | 2016-06-20 | Electronic device circuitry system architecture and laser cinema equipment |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910335531.9A Division CN110113923B (en) | 2016-06-20 | 2016-06-20 | Laser cinema equipment |
CN201910469021.0A Division CN110213953A (en) | 2016-06-20 | 2016-06-20 | Laser cinema equipment |
Publications (2)
Publication Number | Publication Date |
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CN106061220A CN106061220A (en) | 2016-10-26 |
CN106061220B true CN106061220B (en) | 2019-07-02 |
Family
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Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
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CN201910469021.0A Withdrawn CN110213953A (en) | 2016-06-20 | 2016-06-20 | Laser cinema equipment |
CN201910335531.9A Active CN110113923B (en) | 2016-06-20 | 2016-06-20 | Laser cinema equipment |
CN201610446214.0A Active CN106061220B (en) | 2016-06-20 | 2016-06-20 | Electronic device circuitry system architecture and laser cinema equipment |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
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CN201910469021.0A Withdrawn CN110213953A (en) | 2016-06-20 | 2016-06-20 | Laser cinema equipment |
CN201910335531.9A Active CN110113923B (en) | 2016-06-20 | 2016-06-20 | Laser cinema equipment |
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CN (3) | CN110213953A (en) |
Families Citing this family (1)
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CN108518830A (en) * | 2018-05-30 | 2018-09-11 | 珠海格力电器股份有限公司 | Electrical appliance kit and dual system air conditioner |
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JPH08148875A (en) * | 1994-11-24 | 1996-06-07 | Sony Corp | Circuit board shield device |
JP3453029B2 (en) * | 1996-08-09 | 2003-10-06 | アルプス電気株式会社 | Ground terminal structure |
JP2003309389A (en) * | 2002-04-17 | 2003-10-31 | Canon Inc | Printed board and electronic apparatus mounted with the printed board |
JP2004055988A (en) * | 2002-07-23 | 2004-02-19 | Fujitsu Ltd | Information processing apparatus |
CN101022694A (en) * | 2006-02-13 | 2007-08-22 | 华硕电脑股份有限公司 | Circuit board |
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US9179530B2 (en) * | 2010-07-02 | 2015-11-03 | Thomson Licensing | System for grounding in an electronic device |
CN102637447A (en) * | 2011-02-14 | 2012-08-15 | 鸿富锦精密工业(深圳)有限公司 | Electronic device |
CN103458635A (en) * | 2012-05-29 | 2013-12-18 | 鸿富锦精密工业(深圳)有限公司 | Electronic device |
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2016
- 2016-06-20 CN CN201910469021.0A patent/CN110213953A/en not_active Withdrawn
- 2016-06-20 CN CN201910335531.9A patent/CN110113923B/en active Active
- 2016-06-20 CN CN201610446214.0A patent/CN106061220B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN201601911U (en) * | 2009-12-21 | 2010-10-06 | 泰金宝电通股份有限公司 | Housing with anti-electromagnetic interference structure |
CN102402252A (en) * | 2011-11-23 | 2012-04-04 | 苏州佳世达电通有限公司 | Electronic device |
CN104378965A (en) * | 2014-12-10 | 2015-02-25 | 安徽巨一自动化装备有限公司 | Motor controller plastic connector electromagnetic compatibility shielding device for motor controller plastic connector |
Also Published As
Publication number | Publication date |
---|---|
CN106061220A (en) | 2016-10-26 |
CN110113923A (en) | 2019-08-09 |
CN110113923B (en) | 2020-10-30 |
CN110213953A (en) | 2019-09-06 |
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Effective date of registration: 20200818 Address after: 266555 Qian WAN port road, Huangdao District, Qingdao, Shandong Province, No. 218 Patentee after: Qingdao Hisense Laser Display Co.,Ltd. Address before: Donghai West Road 266071 Shandong city of Qingdao province No. 17 Patentee before: HISENSE Co.,Ltd. |
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