CN207885104U - A kind of non-enclosed shielding case - Google Patents
A kind of non-enclosed shielding case Download PDFInfo
- Publication number
- CN207885104U CN207885104U CN201820185206.XU CN201820185206U CN207885104U CN 207885104 U CN207885104 U CN 207885104U CN 201820185206 U CN201820185206 U CN 201820185206U CN 207885104 U CN207885104 U CN 207885104U
- Authority
- CN
- China
- Prior art keywords
- shielding case
- side walls
- supporting side
- lid
- enclosed
- 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.)
- Expired - Fee Related
Links
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model is related to a kind of non-enclosed shielding cases, it is arranged on circuit boards, the shielding case includes a lid and two supporting side walls, and two supporting side walls are connected on two side in opposite setting of lid, and ground connection solder joint is equipped in supporting side walls lower end.The utility model utilizes the misclosure of shielding case, can effectively weigh shielding properties with heat dissipation, can realize preferable shield effectiveness, solve the problems, such as EMI, and can not influence to radiate, and facilitate repair, while can also save material, reduce cost.
Description
Technical field
The utility model is related to electronic technology fields, and in particular to a kind of non-enclosed shielding case.
Background technology
It is constantly promoted with the arithmetic speed of electronic device, is given off positioned at microwave from electronic component in electronic device
The noise intensity of frequency range is growing day by day, not only interferes other users in the frequency range, is also easier to interfere itself radio frequency reception.It is right
The leakage that this common solution is all made of the gimmick of shielding case shade to inhibit noise outside.
Currently, shielding case is generally totally enclosed type, to ensure intact shielding properties.Existing totally enclosed type shielding case, has
The following two kinds：
One, two-piece type shielding case
It can raise, but can only be carried out with screening cover b, screening cover b as shown in Figure 1, two-piece type shielding case includes skeleton a
Modular repair, and there are contact problems for two-piece type, contact is bad not only to influence shielding properties, and if applies to audio production
Product will produce resonance, influence sound quality.Two-piece type shielding case needs two molds, and overall cost is relatively high, a set of to need 1.6RMB.
Two, single-piece shielding case
As shown in Fig. 2, single-piece shielding case eliminates skeleton, only there are one screening cover c, can save cost, but not square
Just internal components state is checked, it has not been convenient to repair, single-piece shielding case is a set of needs 1.2RMB for this.
The shortcomings that existing totally enclosed type shielding case, is：One, it dismantles relatively difficult, it has not been convenient to repair in shielding case
Device；2. being unfavorable for the heat dissipation of chip, and cooling fin can not be attached in shielding case.
Utility model content
The purpose of this utility model is to provide a kind of non-enclosed shielding cases, both can guarantee certain shielding properties,
It does not influence to radiate again, and facilitates repair.
To achieve the above object, the technical solution adopted in the utility model is：
A kind of non-enclosed shielding case, on circuit boards, the shielding case includes a lid and two supporting side walls for setting,
Two supporting side walls are connected on two side in opposite setting of lid, and being equipped with ground connection in supporting side walls lower end welds
Point.
The lid upper end downwards concave shape at a groove.
The lid is slab construction.
The supporting side walls are equipped with heat emission hole.
The supporting side walls are equipped with reinforcing rib.
After adopting the above scheme, the utility model utilize shielding case misclosure, can effectively weigh shielding properties with
Heat dissipation, can realize preferable shield effectiveness, solve the problems, such as EMI, and can not influence to radiate, and facilitate repair, while can also save
Material saving reduces cost.
Description of the drawings
Fig. 1 is prior art two-piece type shielding case structure schematic diagram；
Fig. 2 is prior art single-piece shielding case structure schematic diagram；
Fig. 3 is the non-enclosed shielding case structure schematic diagram of the utility model；
Fig. 4 is the non-enclosed shielding case application schematic diagram of the utility model；
Fig. 5 is the EMI test datas that non-enclosed shielding case is not used；
Fig. 6 is the EMI test datas using non-enclosed shielding case.
Specific implementation mode
Shown in Fig. 4, the utility model discloses a kind of non-enclosed shielding case comprising a lid 1 and two
Supporting side walls 2, lid 1 are slab construction, and two supporting side walls 2 are connected to two sides being arranged in opposite of lid 1
On, it is equipped with ground connection solder joint 21 in 2 lower end of supporting side walls.
In practical applications, non-enclosed shielding case is arranged above electronic component 4, passes through 2 lower end of supporting side walls
Ground connection solder joint 21 be welded on circuit board 3, in this way, the lid 1 of shielding case is covered in the top of electronic component 4 of circuit board 3,
Electronics member device 4 has been covered in, there is certain shielding.
Fig. 5 and Fig. 6 is the EMI test datas before and after increasing non-enclosed shielding case on electronic component 4（EN55032
Standard）, wherein EMI（Electromagnetic Interference）For electromagnetic interference.By Fig. 5 and Fig. 6 it is found that electronics member device
Part 4 early period of 396M can be exceeded, and can improve 5dB after increasing non-enclosed shielding case above electronic component 4, meets certification mark
It is accurate.
Meanwhile because supporting side walls 2 effect, formed among the electronic component 4 on lid 1 and circuit board 3 certain
Space is conducive to the heat dissipation of electronic component 4 in this way, if it is desired, cooling fin can also be attached above electronic component 4,
It ensure that the heat dissipation effect of electronic component 4.Moreover, when the non-close shielding case is arranged above electronic component 4, electronics member
Device 4 only has upper surface coverd part 1 and covers, and all around there is no being capped, can intuitively observe very much non-enclosed screen
The electronic component 4 in cover is covered, and the shielding case is provided only with two pads 21, dismounting is very convenient, facilitates repair.In addition,
The non-enclosed shielding case structure of the utility model is simple, and production cost is low, and often covering non-enclosed shielding case only needs 0.6RMB.
Concave shape can prevent lid 1 from occurring at a groove 11, the setting of the groove 11 downwards for the upper end of above-mentioned lid 1
Deformation, to extend the service life of non-enclosed shielding case.
It, can be in the supporting side walls 2 of shielding case in order to further carry the heat dissipation performance of the electronic component 4 in shielding case
Heat emission hole 22 is set.Heat emission hole 22 is provided with conducive to the heat dissipation of electronic component 4, but it is possible to influence supporting side walls 2
Intensity to reinforce the intensity of supporting side walls 2, and then extends shielding case so reinforcing rib 23 can also be arranged in supporting side walls 2
Service life.
The above is only the utility model embodiment, not makees any limit to the technical scope of the utility model
System, thus any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent variations with repair
Decorations, are still within the scope of the technical solutions of the present invention.
Claims (5)
1. a kind of non-enclosed shielding case, setting is on circuit boards, it is characterised in that：The shielding case includes a lid and two
Supporting side walls, two supporting side walls are connected on two side in opposite setting of lid, are set in supporting side walls lower end
There is ground connection solder joint.
2. a kind of non-enclosed shielding case according to claim 1, it is characterised in that：The lid upper end is recessed downwards
Form a groove.
3. a kind of non-enclosed shielding case according to claim 1, it is characterised in that：The lid is slab construction.
4. a kind of non-enclosed shielding case according to claim 1, it is characterised in that：The supporting side walls are equipped with heat dissipation
Hole.
5. according to a kind of any non-enclosed shielding cases of claim 1-4, it is characterised in that：It is set in the supporting side walls
There is reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820185206.XU CN207885104U (en) | 2018-02-02 | 2018-02-02 | A kind of non-enclosed shielding case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820185206.XU CN207885104U (en) | 2018-02-02 | 2018-02-02 | A kind of non-enclosed shielding case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207885104U true CN207885104U (en) | 2018-09-18 |
Family
ID=63509642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820185206.XU Expired - Fee Related CN207885104U (en) | 2018-02-02 | 2018-02-02 | A kind of non-enclosed shielding case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207885104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110753438A (en) * | 2019-11-02 | 2020-02-04 | 中国原子能科学研究院 | Beam line magnet shielding device and shielding method |
-
2018
- 2018-02-02 CN CN201820185206.XU patent/CN207885104U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110753438A (en) * | 2019-11-02 | 2020-02-04 | 中国原子能科学研究院 | Beam line magnet shielding device and shielding method |
| CN110753438B (en) * | 2019-11-02 | 2020-11-10 | 中国原子能科学研究院 | Beam line magnet shielding device and shielding method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100463594C (en) | Electromagnetic shielding apparatus with heat radiation function | |
| CN204069618U (en) | A kind of electro-magnetic shielding cover and circuit board | |
| CN207604120U (en) | A kind of heat-radiating integrated device of shielding | |
| CN204793129U (en) | Novel microwave filter encapsulation shielding case | |
| CN1953646A (en) | Heat radiator capable of preventing electromagnetic interference | |
| CN207885104U (en) | A kind of non-enclosed shielding case | |
| CN201278627Y (en) | Electromagnetic shielding device | |
| CN201590990U (en) | Electromagnetic shielding cover and electronic device | |
| CN208637562U (en) | A kind of resonant column assembling structure | |
| KR20100041651A (en) | Circuit board of communication product and manufacturing method thereof | |
| CN207321774U (en) | Shielding case and the electronic product for including it | |
| ITMC20090107A1 (en) | PRINTED CIRCUIT EQUIPPED WITH INSULATING COVER AND RELATED ASSEMBLY METHOD. | |
| CN207305193U (en) | A kind of dismountable pcb board water-proof radiator | |
| WO2016090999A1 (en) | Radio frequency shielding box | |
| US6950309B2 (en) | Power amplifier module assembly | |
| CN203369033U (en) | Radiator for integrated circuit in enclosed space | |
| CN209472873U (en) | A kind of vehicle mounted multimedia mainframe box | |
| CN203934273U (en) | For screening arrangement and the portable electron device of portable electron device | |
| CN206759927U (en) | A kind of novel shielding device | |
| CN207218790U (en) | Circuit board assemblies and mobile terminal | |
| CN207151089U (en) | A kind of novel multi-layer ventilation waveguide window | |
| CN213521963U (en) | High-precision anti-interference circuit board for mobile phone | |
| CN205408372U (en) | Semiconductor power source module and have its microwave applicator spare | |
| CN220235326U (en) | Anti-interference shielding cover | |
| CN102833991B (en) | A kind of protection lid of printed circuit board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 Termination date: 20210202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |