CN109041560A - A kind of signal shielding cover structure - Google Patents
A kind of signal shielding cover structure Download PDFInfo
- Publication number
- CN109041560A CN109041560A CN201810984588.7A CN201810984588A CN109041560A CN 109041560 A CN109041560 A CN 109041560A CN 201810984588 A CN201810984588 A CN 201810984588A CN 109041560 A CN109041560 A CN 109041560A
- Authority
- CN
- China
- Prior art keywords
- shielding case
- shielding cover
- signal
- shielding
- cover structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
- H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The present invention relates to signal shielding cover technical field more particularly to a kind of signal shielding cover structures, including stacked pcb board component and hardware bracket component, and the shielding case being located between the pcb board component and hardware bracket component；The blind zone for needing shielded signal is provided on the pcb board component；The shielding case is resisted against on the hardware bracket component, and interference covers on the blind zone.Goal of the invention of the invention is to provide a kind of signal shielding cover structure, solves existing signal shielding cover there are shielding case loosening using technical solution provided by the invention, structure and installation procedure is complicated and the technical problem of conduction and leakproofness difference.
Description
Technical field
The present invention relates to signal shielding cover technical field more particularly to a kind of signal shielding cover structures.
Background technique
PCB circuit board is substantially fixed on hardware bracket by the realization of common display screen signal shielding case function, so
Shielding case is installed in PCB circuit board afterwards.In PCB circuit board shielding case installation and fixed form there are several types of.
It twists leg first is that being equipped with metal fixation below shielding case, by the through-hole in PCB circuit board, metal is twisted leg torsion
Direction distortion is fixed on shielding case in PCB circuit board, which, which needs to increase, together realizes the process for the torsional deflection that twists leg
Fastening, causes structure and mounting means complex process；There is the risk loosened after prolonged vibration in metal fixed feet, cause
There is abnormal voice；Loosening is generated after prolonged vibration in order to prevent, will increase and welded together twisting leg and increase on pcb board
Process.
Second is that multiple metal intermediate plates are welded in PCB circuit board by SMT, shielding case loading is pre-welded to PCB
In metal intermediate plate on circuit board, shielding case is fixedly clamped by multiple metal intermediate plates.There is pine after prolonged vibration
The dynamic risk even to fall off leads to abnormal voice or function of shielding missing occur；And the patch working hour of SMT is increased, is tied
Structure and mounting means complex process.
Also there is following technical problem in above-mentioned shielding case installation and fixed form: contacting between shielding case and pcb board jointly
Face is small, and conduction is bad；The lower edge and PCB of shielding case have gap, poor sealing.
Summary of the invention
Goal of the invention of the invention is to provide a kind of signal shielding cover structure, using technical solution solution provided by the invention
Having determined, there are shielding case loosening, the technologies of structure and installation procedure complexity and conduction and leakproofness difference for existing signal shielding cover
Problem.
In order to achieve the above object of the invention, the present invention provides a kind of signal shielding cover structure, including stacked pcb board component
With hardware bracket component, and the shielding case being located between the pcb board component and hardware bracket component；In the pcb board
The blind zone for needing shielded signal is provided on component；The shielding case is resisted against on the hardware bracket component, and interference covers in
On the blind zone.
Preferably, the shielding case includes that the top plate being resisted against on the hardware bracket component and several pieces are vertically installed in
The side plate of the roof perimeter；Several blocks of side plates are mutually indepedent, and the junction between adjacent two blocks of side plates be formed with it is anti-
Only position limiting structure of the side plate towards external expansion.
Preferably, it is formed in the lower edge of the side plate backwards to the inclined flanging in shielding case center.
Preferably, the shielding case interference covers on the blind zone, the end of the flanging and the pcb board component it
Between magnitude of interference be 0.1mm~0.5mm.
Preferably, the position limiting structure is the limit flanging formed in the side of the side plate；The limit flanging and phase
Clearance fit between adjacent side plate.
Preferably, riveting or screw are fixed between the shielding case and the hardware bracket component.
Preferably, the shape of the shielding case matches with the blind zone, is solid figure, cylinder or prismatic.
Hardware bracket component and shielding case are fixed together by signal shielding cover structure provided by the invention, and two parts close
And at a part, multiple metal holders are saved in PCB circuit board, reduce material variety and cost；Shielding case does not need
Twist leg process, does not also need the welding sequence that twists leg, and when SMT patch reduces the patch working hour of multiple metal holders, reduces life
Produce process and working hour；Shielding case and hardware bracket are fixed together, and binding force is big, non-loosening and abnormal sound risk；Shielding case and PCB
Plate fits closely, and signal shielding is good, and the static guiding general character is good.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, the present invention will be implemented below
Attached drawing needed in the description of example or the prior art is briefly described.It should be evident that the accompanying drawings in the following description
Only a part of the embodiments of the present invention, for those of ordinary skill in the art, in not making the creative labor property
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is scheme of installation of the embodiment of the present invention；
Fig. 2 is mounting structure of shield cover of embodiment of the present invention schematic diagram；
Fig. 3 is assembled state of embodiment of the present invention structural schematic diagram；
Fig. 4 is assembled state of embodiment of the present invention partial structure diagram；
Fig. 5 is shielding case of embodiment of the present invention six views and perspective view.
In attached drawing: A are as follows: plastic rubber panel, B are as follows: pcb board component, D are as follows: hardware bracket component, 1. are as follows: hardware bracket, 2.
Are as follows: shielding case, 3. are as follows: pcb board,Are as follows: riveting point.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Display screen signal shielding case at present, common installation and fixed form include by shielding case below metal it is solid
Surely it twists leg fixed and is fixed by metal intermediate plate.There is shielding case loosening, structure and erector in above-mentioned installation and fixed form
The technical problem of sequence complexity and conduction and leakproofness difference.
Referring to Figure 1-5, in order to solve the above-mentioned technical problem, the present embodiment provides a kind of signal shielding cover structures, including
Pcb board component B, hardware bracket component D and shielding case 2, wherein pcb board component B is stacked is fixed between hardware on component, shields
Cover 2 is then located between pcb board component B and hardware bracket component D, and covers on the area that shielded signal is needed on pcb board component B
Domain, in this regard, being provided with the blind zone for needing shielded signal on pcb board component B.
Wherein shielding case 2 includes that the top plate being resisted against on hardware bracket component D and several pieces are vertically installed in roof perimeter
Side plate.Side plate is trapped among roof perimeter, and it can be vertical that enabling entire shielding case 2, spatially shape, shape match with blind zone
The bodily form, cylinder or prismatic.
During the installation process, first by shielding case 2 against being fixed on hardware bracket component D, two parts is enabled to synthesize one
A part, fixed form can there are many, be not limited only to riveting and screw fixed form；Again by pcb board component B and hardware branch
Frame component D is assembled, and realizes signal shielding effect, shielding case 2 is enabled to cover on blind zone.
In order to solve the technical issues of referring in the prior art, in the present embodiment, shielding case 2 and the B interference of pcb board component
Cooperation, makes 2 lower edge of shielding case and PCB gapless after mounting, is fitted close.For this purpose, in the present embodiment, several blocks of side plates
Independently of each other, and the junction between adjacent two blocks of side plates is formed with the position limiting structure for preventing side plate towards external expansion.Independently of each other
Side plate enable shielding case 2 movable when carrying out cover conjunction to blind zone, due to interference between shielding case 2 and pcb board component B
Cooperation, movable side plate can extend to the outside under pressure, so that shielding case 2 is had tension outward after mounting, guarantee
Inside component is at a distance from shielding case 2.
In the present embodiment, it is formed in the lower edge of side plate backwards to the inclined flanging in 2 center of shielding case.2 mistake of shielding case
It is full of and covers on blind zone, the magnitude of interference between the end and pcb board component B of flanging is 0.1mm~0.5mm, and magnitude of interference is preferably
0.2mm。
Meanwhile the position limiting structure formed between adjacent two blocks of side plates, prevent side plate too big towards external expansion, position limiting structure can
To be the limit flanging formed in the side of side plate；Limit clearance fit between flanging and adjacent side plate.
Hardware bracket component and shielding case are fixed together by signal shielding cover structure provided in this embodiment, two parts
It is merged into a part, multiple metal holders is saved in PCB circuit board, reduces material variety and cost；Shielding case is not required to
Twist leg process, does not also need the welding sequence that twists leg, and when SMT patch reduces the patch working hour of multiple metal holders, reduces
Production process and working hour；Shielding case and hardware bracket are fixed together, and binding force is big, non-loosening and abnormal sound risk；Shielding case with
Pcb board fits closely, and signal shielding is good, and the static guiding general character is good.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (7)
1. a kind of signal shielding cover structure, it is characterised in that: including stacked pcb board component and hardware bracket component, and folder
Shielding case between the pcb board component and hardware bracket component；Being provided on the pcb board component needs shielded signal
Blind zone；The shielding case is resisted against on the hardware bracket component, and interference covers on the blind zone.
2. signal shielding cover structure according to claim 1, it is characterised in that: the shielding case includes being resisted against described five
Top plate on golden bracket component and several pieces are vertically installed in the side plate of the roof perimeter；Several blocks of side plates are mutually only
It is vertical, and the junction between adjacent two blocks of side plates is formed with the position limiting structure for preventing the side plate towards external expansion.
3. signal shielding cover structure according to claim 2, it is characterised in that: be formed with back in the lower edge of the side plate
To the inclined flanging in shielding case center.
4. signal shielding cover structure according to claim 3, it is characterised in that: the shielding case interference covers in the shielding
Qu Shang, the magnitude of interference between the end of the flanging and the pcb board component are 0.1mm~0.5mm.
5. signal shielding cover structure according to claim 2, it is characterised in that: the position limiting structure is in the side plate
The limit flanging that side is formed；Clearance fit between limit flanging and the adjacent side plate.
6. signal shielding cover structure according to any one of the preceding claims, it is characterised in that: the shielding case and institute
Riveting or screw between hardware bracket component is stated to fix.
7. signal shielding cover structure according to claim 6, it is characterised in that: the shape of the shielding case and the shielding
Area matches, and is solid figure, cylinder or prismatic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984588.7A CN109041560A (en) | 2018-08-28 | 2018-08-28 | A kind of signal shielding cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984588.7A CN109041560A (en) | 2018-08-28 | 2018-08-28 | A kind of signal shielding cover structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109041560A true CN109041560A (en) | 2018-12-18 |
Family
ID=64624820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810984588.7A Withdrawn CN109041560A (en) | 2018-08-28 | 2018-08-28 | A kind of signal shielding cover structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109041560A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052286A (en) * | 2006-04-03 | 2007-10-10 | 华冠通讯股份有限公司 | Hand held communication device |
| CN102791119A (en) * | 2012-07-26 | 2012-11-21 | 中兴通讯股份有限公司 | Mobile terminal |
| CN203934273U (en) * | 2014-06-09 | 2014-11-05 | 广州三星通信技术研究有限公司 | For screening arrangement and the portable electron device of portable electron device |
| CN107580448A (en) * | 2017-08-02 | 2018-01-12 | 深圳天珑无线科技有限公司 | A kind of preparation method of electromagnetic shielding case, terminal and electromagnetic shielding case |
| CN206963270U (en) * | 2017-06-19 | 2018-02-02 | 苏州恒腾电子有限公司 | A kind of radome with position limiting structure |
-
2018
- 2018-08-28 CN CN201810984588.7A patent/CN109041560A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052286A (en) * | 2006-04-03 | 2007-10-10 | 华冠通讯股份有限公司 | Hand held communication device |
| CN102791119A (en) * | 2012-07-26 | 2012-11-21 | 中兴通讯股份有限公司 | Mobile terminal |
| CN203934273U (en) * | 2014-06-09 | 2014-11-05 | 广州三星通信技术研究有限公司 | For screening arrangement and the portable electron device of portable electron device |
| CN206963270U (en) * | 2017-06-19 | 2018-02-02 | 苏州恒腾电子有限公司 | A kind of radome with position limiting structure |
| CN107580448A (en) * | 2017-08-02 | 2018-01-12 | 深圳天珑无线科技有限公司 | A kind of preparation method of electromagnetic shielding case, terminal and electromagnetic shielding case |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181218 |