CN208509529U - Metal cover for electromagnetic shielding - Google Patents
Metal cover for electromagnetic shielding Download PDFInfo
- Publication number
- CN208509529U CN208509529U CN201821193559.0U CN201821193559U CN208509529U CN 208509529 U CN208509529 U CN 208509529U CN 201821193559 U CN201821193559 U CN 201821193559U CN 208509529 U CN208509529 U CN 208509529U
- Authority
- CN
- China
- Prior art keywords
- electromagnetic shielding
- cover
- metal cover
- occlusion part
- intercommunicating pore
- 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.)
- Active
Links
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Telephone Set Structure (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
A kind of metal cover for electromagnetic shielding, it is set on circuit board, which is characterized in that it includes have: mask frame, it is set on circuit board, the intercommunicating pore that mask frame is formed at least two reception rooms and is connected between each reception room；And screening cover, it is set to mask frame, screening cover has an occlusion part, and occlusion part is corresponding with intercommunicating pore to be arranged and occlusion part partly covers in intercommunicating pore；The utility model can save to the demand of the metalwork that blocks gap and metalwork is welded in the procedure of processing at gap as a result, thus can improve production efficiency and reduce product Material Cost.
Description
Technical field
The utility model relates to a kind of metal cover, refer in particular to produce by metal folding process is used for electromagnetic screen
The metal cover covered.
Background technique
With the development of electronic products, can be installed on many circuit boards to shield shielding electromagnetic waves, it is thus real
Existing noise insulation, to avoid the case where influencing other electronic components and causing malfunction.Traditionally, metal cover is mostly
It is made up of sheet metal process forming, but is constrained to the technical restriction of sheet metal forming technology, especially the skill of metal folding process
Art limitation, this kind of metal cover inevitably especially can need to divide there are many presence in gap inside metal cover
When for multiple spaces, which often makes multiple spaces such as this be interconnected, and then leads to the e-mail in the respectively space
It number interferes with each other and not normal.
In order to cover the case where grade gaps are to avoid interfering with each other, the known practice is the side by secondary operation
Formula, the additional metalwork of spot welding covers up the grade gaps at the grade gaps, but the mode of secondary operation is not only time-consuming
It takes a lot of work, also will cause the increase of Material Cost, obvious its still has improved space.
Utility model content
In view of this, the purpose of this utility model is providing a kind of metal cover for electromagnetic shielding, use can be saved
To block the demand of the metalwork in gap and metalwork is welded in the procedure of processing at gap, thus production efficiency can be improved
And reduce product Material Cost.
In order to reach above-mentioned and other purposes, the utility model provides a kind of metal cover for electromagnetic shielding, sets
It is placed on circuit board, which is characterized in that it includes have: mask frame is set to the electricity
On the plate of road, intercommunicating pore which is formed at least two reception rooms and is connected between the respectively reception room；And screening cover,
It is set to the mask frame, which has occlusion part, occlusion part setting corresponding with the intercommunicating pore and the occlusion part part
Ground covers in the intercommunicating pore.
Optionally, which includes outer rim and spacing frame, which, which forms, surrounds space, which should
At least two reception room is divided into around space.
Optionally, which is formed between the outer rim and the spacing frame.
Optionally, which includes lateral wall and outer roof, and one end of the lateral wall is removably fixedly arranged on the electricity
Road plate, the other end of the lateral wall are connected to the outer roof.
Optionally, which includes inner sidewall and inner roof wall, which is divided into this at least around space for this
Two reception rooms, one end of the inner sidewall are connected to the inner roof wall, and the intercommunicating pore be formed in the lateral wall and the inner sidewall it
Between.
Optionally, which includes cover board and clamping part, which is removably connected in the outer of the mask frame
Frame.
Optionally, which includes cover board, which includes main body, and the bottom surface of the main body is connected to the outer roof
Or the inner roof wall.
Optionally, which includes the occlusion part, and one end of the occlusion part is connected to the another of the main body and the occlusion part
One end extends towards the direction far from the main body.
Optionally, which includes hollow-out parts, the hollow-out parts be formed in the main body and with the inner roof wall or the outer roof
It corresponds to each other, so that the hollow-out parts are covered in by the inner roof wall or the outer top wall portion.
Optionally, the gap width which is not covered by the occlusion part is less than minimum mask requirement, the minimum masking
Demand is set as 1/4 less than electromagnetic wavelength.
The utility model passes through above-mentioned technical characteristic, when screening cover is set to mask frame, the occlusion part of screening cover as a result,
The intercommunicating pore of mask frame can be partly sheltered from, electromagnetic wave just can not be transmitted by the intercommunicating pore that the portion of being blocked covers at this time,
Thus it can effectively completely cut off electromagnetic wave and transmitted between each reception room, reach more preferably shield effectiveness, compared to passing through in known techniques
The method that secondary operation carrys out weld metal pieces, the utility model can be reduced procedure of processing, improve production efficiency and reduce whole
Material Cost.
In relation to a kind of metal cover for electromagnetic shielding provided by the utility model, will give in subsequent explanation
Description.However, those skilled in the art of the utility model should be able to understand, the equal detailed description and implementation are originally practical new
Specific embodiment cited by type is only for illustrating the utility model, not to limit the protection scope of the utility model.
Detailed description of the invention
Where the technical characterstic of the utility model is described in detail, hereby for embodiment below and cooperate Detailed description of the invention such as
Afterwards.Wherein:
Fig. 1 is the perspective view of the embodiments of the present invention.
Fig. 2 is the exploded perspective view of embodiment illustrated in fig. 1.
Fig. 3 is analogous to Fig. 2, the schematic diagram after mainly showing screening cover overturning.
Fig. 4 is the exploded perspective view at another visual angle of embodiment illustrated in fig. 1.
Fig. 5 is analogous to the visual angle of Fig. 4, when main display screening cover is connected in mask frame, the occlusion part of screening cover and shielding
The schematic diagram of the connection relationship of the intercommunicating pore of frame.
(symbol description)
10 metal cover for electromagnetic shielding
12 circuit board, 122 electronic component
14 surround 16 reception room of space
162 first reception room, 164 second reception room
166 third reception room, 20 mask frame
22 outer rim, 222 lateral wall
224 outer 24 spacing frames of roof
242 inner sidewall, 244 inner roof wall
26 intercommunicating pore, 30 screening cover
32 cover board, 322 main body
324 occlusion part, 326 hollow-out parts
34 clamping parts
Specific embodiment
First it is noted that technical characteristic provided by the utility model is not limited to specific knot described in embodiment
Structure, purposes and its application.The term that description uses is all that those skilled in the art's illustrative description to understand is used
Language, " preceding ", "upper" mentioned by the content of the present specification, "lower", " rear ", "left", "right", "top", "bottom", "inner" and "outside" etc.
Directionality describes term, also only illustrative description term on the basis of normal use direction, is not construed as limiting practical
The purpose of novel protected range.
In addition, as the application illustrate used in the quantitative values such as "a", "an" and "the" of singular all wrap
Include the meaning of plural number.Thus, for example referring to one or more elements to the explanation of " element ", and including art technology
Equivalent replacement known to personnel.Used all conjunctions are also understood to most wide meaning under similar state, say
Specific shape described in bright content and structure feature or technical terms are it should also be understood that being includes specific structure or skill
The equivalent constructions or technical terms for the function that art term can be reached.
It please refer to Fig. 1 to Fig. 3, a kind of metal cover for electromagnetic shielding according to utility model illustrated embodiment
10, for the metal cover 10 for being used to be electromagnetically shielded at least through made by metal folding process, this is used for the metal being electromagnetically shielded
Mask 10 is set on circuit board 12, to cover the electronic component 122 that at least one is set on circuit board 12.In addition, the use
At least two reception rooms 16, in the present embodiment, the reception room 16 are also formed with inside the metal cover 10 of electromagnetic shielding
Quantity is three, respectively the first reception room 162, the second reception room 164 and third reception room 166.This is used for electromagnetic screen as a result,
The metal cover 10 covered, in addition to can isolate first reception room 162, second reception room 164 of the external electromagnetic waves to metal cover
And influence caused by the electronic component 122 in third reception room 166 and electromagnetic wave can be prevented from metal cover outward leakage, may be used also
With transmitting of effective trapped electromagnetic wave between first reception room 162, the second reception room 164 and third reception room 166.
Please refer to figs. 2 and 3, which includes: mask frame 20 and screening cover 30, should
Mask frame 20 is removably fixedly arranged on circuit board 12, which is removably connected in the mask frame 20.
Fig. 2, Fig. 3 and Fig. 5 are please referred to, which is completed the process by metal plate through the gimmick of sheet metal process, the processing
Gimmick may include, but are not limited to punching press, cut, bending, the methods of forming and welding.The mask frame 20 includes 22 He of outer rim
Spacing frame 24, the outer rim 22 are defined around space 14, which is then that should be divided into the first receipts around space 14
Room 162, the second reception room 164 and third reception room 166.In addition, the outer rim 22 also includes lateral wall 222 and outer roof
224, the bottom end of the lateral wall 222 is removably fixedly arranged on circuit board 12, the lateral wall 222 towards far from circuit board 12 direction
Extend and be simultaneously connected to outer roof 224 in its top, the outer roof 224 is substantially parallel to circuit board 12, but in practical application simultaneously
It is not limited.The spacing frame 24 includes inner sidewall 242 and inner roof wall 244, which should by the inner sidewall 242
The first reception room 162, the second reception room 164 and third reception room 166, the bottom end of the inner sidewall 242 are divided into around space 14
It is removably fixedly arranged on circuit board 12, the top of the inner sidewall 242 is then to be connected to inner roof wall 244, and the lateral wall 222 is interior with this
The height of side wall 242 determines the height of reception room 16, and also provides a degree of to screening cover 30 and circuit board 12
Support property.It is formed with intercommunicating pore 26 in the outer rim 22 and the spacing frame 24, is connected to the first reception room 162 and the second reception room
164, which is formed near the intersection between the lateral wall 222 of outer rim 22 and the inner sidewall 242 of spacing frame 24.
Please see Fig. 2 to Fig. 4, screening cover 30 is to be completed the process by metal plate through the gimmick of sheet metal process, the processing gimmick
It may include, but are not limited to punching press, cut, bending, the methods of forming and welding.The screening cover 30 includes cover board 32 and clamping part
34, which is removably connected in the lateral wall 222 of the outer rim 22 of mask frame 20, the shielding by the clamping part 34
The cover board 32 of lid 30 includes main body 322, occlusion part 324 and hollow-out parts 326.In the present embodiment, the cover board of the screening cover 30
32 be by punching press, cut and bending and etc. form the occlusion part 324, and the block where script occlusion part then forms hollow out
Portion 326, therefore the hollow-out parts 326 can be adjacent to the occlusion part 324.The main body 322 is substantially in tabular, the bottom of the main body 322
Face is connected to outer roof 224 and inner roof wall 244, and the top of the occlusion part 324 is connected to the bottom of main body 322 and the occlusion part 324
Hold towards far from the main body 322 direction extend, the occlusion part 324 it is corresponding with the intercommunicating pore 26 of mask frame 20 be arranged and this block
Portion 324 partly covers in the intercommunicating pore 26.In addition, hollow-out parts 326 be formed in main body 322 and with inner roof wall 244 and outer roof
224 correspond to each other, so that the hollow-out parts 326 are partly covered in by inner roof wall 244 and outer roof 224.
Be worth supplementary explanation, intercommunicating pore be also can the portion of being blocked to fully sealing cover in, similarly, hollow-out parts
And it can be covered in by inner roof wall and outer roof to fully sealing, but in practical application, covered in even if not being fully sealed
It and is only, as long as the degree covered reaches minimum mask requirement, to be enough effectively to completely cut off between reception room when partly covering
The situation that electromagnetic wave transmitting and external electromagnetic waves are passed to.In the present embodiment, which is set as being less than electricity
The 1/4 of magnetic wave wavelength, that is to say, that when unsheltered gap width is less than the 1/4 of electromagnetic wavelength, so that it may reach suitable journey
The screening effect of degree.In turn, it is emphasized that, and not all intercommunicating pore is required to that corresponding occlusion part is arranged, but
When accommodating indoor electronic component vulnerable to Electromagnetic Interference, the intercommunicating pore between the reception room and other reception rooms just needs
It is covered by occlusion part, in other words, if accommodate indoor electronic component and be not easy to the interference by electromagnetic wave, the receipts
The system of screening cover can be effectively reduced there is no need to cover by occlusion part in intercommunicating pore between room and other reception rooms
Make step and cost.
By above structure it is found that the utility model passes through the structure of the occlusion part 324 of screening cover 30, when the screening cover 30 blocks
It connects after being fixed on mask frame 20, which can partly cover in intercommunicating pore 26, receive the first reception room 162 and second
The electromagnetic wave of room 164 can not be transmitted therebetween, the effect of to reach electromagnetic shielding.Added compared in known techniques by secondary
The practice of work spot welding metal part, the utility model be avoided that the demand of secondary operation and save the metalwork to block gap,
Therefore production efficiency can be improved and reduce the cost of product material.
Finally, must illustrate again, the utility model disclosed method and constitutes element only in previous embodiment
For for example, being not used to limit the protection scope of the utility model, such as without departing from letter made by the spirit of the present invention
Easy structure retouching or variation, or the replacement with other equivalence elements, still should belong to the scope that scope of protection of the utility model covers.
Claims (10)
1. a kind of metal cover for electromagnetic shielding, is set on circuit board,
It is described for electromagnetic shielding metal cover be characterized in that,
The metal cover for electromagnetic shielding includes:
Mask frame is set on the circuit board, and the mask frame is formed at least two reception rooms and is connected to each described
Intercommunicating pore between reception room；And
Screening cover is set to the mask frame, and the screening cover has occlusion part, and the occlusion part is opposite with the intercommunicating pore
It should be arranged and the occlusion part partly covers in the intercommunicating pore.
2. the metal cover as described in claim 1 for electromagnetic shielding, which is characterized in that
The mask frame includes outer rim and spacing frame, and the outer rim, which is formed, surrounds space, and the spacing frame is enclosed described
At least two reception rooms are divided into around space.
3. the metal cover as claimed in claim 2 for electromagnetic shielding, which is characterized in that
The intercommunicating pore is formed between the outer rim and the spacing frame.
4. the metal cover as claimed in claim 2 for electromagnetic shielding, which is characterized in that
The screening cover includes cover board and clamping part, and the clamping part is removably connected in the outside of the mask frame
Frame.
5. the metal cover as claimed in claim 2 for electromagnetic shielding, which is characterized in that
The outer rim includes lateral wall and outer roof, and one end of the lateral wall is removably fixedly arranged on the circuit board,
The other end of the lateral wall is connected to the outer roof.
6. the metal cover as claimed in claim 5 for electromagnetic shielding, which is characterized in that
The spacing frame includes inner sidewall and inner roof wall, and the inner sidewall is divided into described described at least two around space
Reception room, one end of the inner sidewall are connected to the inner roof wall, and the intercommunicating pore is formed in the lateral wall and described interior
Between side wall.
7. the metal cover as claimed in claim 6 for electromagnetic shielding, which is characterized in that
The screening cover includes cover board, and the cover board includes main body, the bottom surface of the main body be connected to the outer roof or
The inner roof wall.
8. the metal cover as claimed in claim 7 for electromagnetic shielding, which is characterized in that
The cover board includes the occlusion part, and one end of the occlusion part is connected to the another of the main body and the occlusion part
It holds towards the direction far from the main body and extends.
9. the metal cover as claimed in claim 8 for electromagnetic shielding, which is characterized in that
The cover board includes hollow-out parts, the hollow-out parts be formed in the main body and with the inner roof wall or the outer roof phase
It is mutually corresponding, so that the hollow-out parts are covered in by the inner roof wall or the outer top wall portion.
10. the metal cover as described in claim 1 for electromagnetic shielding, which is characterized in that
The gap width that the intercommunicating pore is not covered by the occlusion part is less than minimum mask requirement, the minimum mask requirement setting
For 1/4 less than electromagnetic wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821193559.0U CN208509529U (en) | 2018-07-26 | 2018-07-26 | Metal cover for electromagnetic shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821193559.0U CN208509529U (en) | 2018-07-26 | 2018-07-26 | Metal cover for electromagnetic shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208509529U true CN208509529U (en) | 2019-02-15 |
Family
ID=65291090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821193559.0U Active CN208509529U (en) | 2018-07-26 | 2018-07-26 | Metal cover for electromagnetic shielding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208509529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405757A (en) * | 2020-04-30 | 2020-07-10 | 成都菲斯洛克电子技术有限公司 | Polyhedral combined circuit board |
-
2018
- 2018-07-26 CN CN201821193559.0U patent/CN208509529U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405757A (en) * | 2020-04-30 | 2020-07-10 | 成都菲斯洛克电子技术有限公司 | Polyhedral combined circuit board |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100566525C (en) | The electromagnetic interference shield shell of Very Low Clearance | |
| CN102017830B (en) | Interlocking EMI shield | |
| US7772505B2 (en) | Electromagnetic interference (EMI) shielding apparatus and related methods | |
| US7488902B2 (en) | Electromagnetic interference shielding apparatus and methods of making the same | |
| CN101453826B (en) | Stacking construction of printed circuit board | |
| KR940001584A (en) | Radio frequency interference (RFI) / electromagnetic interference (EMI) blocking device between adjacent circuit areas on a single circuit board | |
| CN208509529U (en) | Metal cover for electromagnetic shielding | |
| CN100592843C (en) | Electronic circuit unit and its sealed structure | |
| CN206181715U (en) | Mobile terminal shield assembly | |
| CN201797698U (en) | Electromagnetic shielding square cabin | |
| CN202160378U (en) | Shield cover and shield cover component | |
| US6711032B2 (en) | Shield and method for shielding an electronic device | |
| TW201249324A (en) | Enclosure | |
| CN201557365U (en) | Shielding frame and portable electronic equipment | |
| CN102612307B (en) | One easily welds radome | |
| CN106817887A (en) | Radome, shield assemblies and the electronic installation using the shield assemblies | |
| CN102953660B (en) | Steel vent window and the installation method of aluminum shielding cavity attachment structure | |
| CN208509368U (en) | Has the electromagnetic wave shielding mask of line windering function | |
| WO2014166445A1 (en) | Shielding device | |
| CN216752645U (en) | Novel shielding frame | |
| CN109041564A (en) | A kind of electromagnetic shielding shell | |
| CN211702872U (en) | Circuit board assembly and electronic device | |
| CN201563343U (en) | Board-to-board shielding module structure and electronic equipment with same | |
| CN214901944U (en) | Integrally formed shielding frame | |
| CN102612308B (en) | A kind of quick detachable radome |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |