CN217608213U - EMC's mechanical shielding protective structure - Google Patents
EMC's mechanical shielding protective structure Download PDFInfo
- Publication number
- CN217608213U CN217608213U CN202221264951.6U CN202221264951U CN217608213U CN 217608213 U CN217608213 U CN 217608213U CN 202221264951 U CN202221264951 U CN 202221264951U CN 217608213 U CN217608213 U CN 217608213U
- Authority
- CN
- China
- Prior art keywords
- metal cavity
- circuit board
- filter
- filtering
- emc
- 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
Images
Abstract
The utility model discloses a mechanical shielding protective structure of EMC sets up in the casing, including metal cavity, filtering shrouding and feed-through filter, metal cavity includes first metal cavity and second metal cavity, first metal cavity and second metal cavity are provided with the filtering shrouding mounting groove with the casing intercommunication at adjacent medial surface, the filtering shrouding corresponds fixed the setting in filtering shrouding mounting groove, be provided with a plurality of feed-through filter mounting holes that correspond the intercommunication with first metal cavity and second metal cavity respectively on the filtering shrouding, feed-through filter is provided with a plurality ofly and corresponds and sets up in the feed-through filter mounting hole. The utility model discloses a design solitary sealed metal cavity as external interface district to through the shielding of feed-through wave filter and filtration interference signal, effectually blocked its way of mode conduction such as through cables, avoided the interference to the external interface district production of equipment, ensured the accuracy of EMC test.
Description
Technical Field
The utility model belongs to there is the military project, railway, electric power or the electrical field of car that the EMC required, especially relates to an EMC's mechanical shielding protective structure.
Background
Currently, many national and regional consortia require that their products entering the market must comply with and pass their respective certification in accordance with the corresponding EMC standards.
Three factors for EMC are currently: interference sources, propagation paths and sensitive sources. At present many products can not be done completely sealedly, need reserve the mounted position of LED, button, this is these mounted position's unsealed, and then leads to the radiation to leak, and final EMC can not reach the market requirement, and then leads to the product can not get into market. When the authentication is carried out, the sensitive source is the detection equipment which cannot be adjusted, the sensitive source is determined according to the previous design, the adjustment period is long, and the cost is high. In this context, making an effective mechanical shielding is particularly important for EMC, which is a design that replays in addressing the propagation path.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a mechanical shielding protective structure of EMC, through designing solitary sealed metal cavity as external interface area to come as the shielding of intermediate junction spare and filter interference signal through the filter of feeding through, effectually blocked its route of conducting through modes such as cables, avoided the interference to the external interface area production of equipment, ensured the accuracy of EMC test.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a mechanical shielding protective structure of EMC sets up in the casing, including metal cavity, filtering shrouding and feed-through filter, metal cavity sets up with casing formula structure as an organic whole, metal cavity top sets up to the opening, metal cavity is provided with the metal covering and passes through the fix with screw at the opening part, metal cavity includes first metal cavity and second metal cavity, first metal cavity and second metal cavity be provided with the casing in adjacent medial surface the filtering shrouding mounting groove of intercommunication, the filtering shrouding corresponds fixed the setting in filtering shrouding mounting groove and passes through the fix with screw, be provided with on the filtering shrouding and correspond a plurality of feed-through filter mounting holes of intercommunication with first metal cavity and second metal cavity respectively, feed-through filter is provided with a plurality ofly and corresponds and sets up in the feed-through filter mounting hole.
In a preferred embodiment of the present invention, the metal cover and the opening at the top of the metal cavity are sealed by a conductive sealing strip.
In a preferred embodiment of the present invention, the bottom of the metal cavity is spaced from the bottom of the housing.
In a preferred embodiment of the present invention, the filtering sealing plate and the mounting groove of the filtering sealing plate are sealed by a conductive sealing strip.
In a preferred embodiment of the present invention, the device further comprises a circuit board.
In a preferred embodiment of the present invention, the circuit board is provided with a plurality of circuit boards, including a first circuit board, a second circuit board and a third circuit board, the first circuit board is disposed in the first metal cavity and fixed on the filtering sealing plate through a hexagonal copper pillar, the second circuit board is disposed in the second metal cavity and fixed on the filtering sealing plate through a hexagonal copper pillar, and the third circuit board is disposed outside the metal cavity and fixed on the filtering sealing plate through a hexagonal copper pillar, and is disposed opposite to the first circuit board and the second circuit board.
In a preferred embodiment of the present invention, a plurality of the feed-through filters are connected to the third circuit board at one end and to the first circuit board and the second circuit board at the other end.
The beneficial effects of the utility model are that: the utility model provides a mechanical shielding protective structure of EMC is as external interface district through designing solitary sealed metal cavity to come as the shielding of intermediate junction spare and filter interference signal through the filter of feeding through, effectually blocked its way of mode conduction such as cable, avoided the interference to the external interface district production of equipment, ensured the accuracy of EMC test.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a top view of a preferred embodiment of an EMC mechanical shielding structure according to the present invention;
fig. 2 is an installation cross-sectional view of a preferred embodiment of an EMC mechanical shielding structure of the present invention;
fig. 3 is a front view of a filtering sealing plate according to a preferred embodiment of the mechanical shielding and protecting structure of the EMC of the present invention;
fig. 4 is a top view of the filtering sealing plate, the feed-through filter and the circuit board of a preferred embodiment of the mechanical shielding and protecting structure of the EMC of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 in conjunction with fig. 2-4, an embodiment of the present invention includes:
the utility model provides a mechanical shielding protective structure of EMC sets up in casing 1, includes metal cavity, filtering shrouding 2, feed through filter 3 and circuit board.
The metal cavity and the shell 1 are arranged in an integrated structure, and the use stability of the metal cavity is guaranteed. The metal cavity comprises a first metal cavity 4 and a second metal cavity 5, the top of the metal cavity is provided with an opening, the metal cavity is an external interface area, and components which cannot be sealed by all metals, such as an indicator light, a fuse and the like, are placed in the area.
The metal cavity is provided with metal covering 6 at the opening part and is fixed through the screw, just through the sealed setting of electrically conductive sealing strip between the opening at metal covering 6 and metal cavity top, guarantee the leakproofness in the metal cavity.
The bottom of the metal cavity and the bottom of the shell 1 are arranged at intervals, so that the wiring position of the metal cavity and the interference source in the shell 1 can be increased, the wiring of workers is facilitated, meanwhile, the material consumption of the metal cavity can be reduced, and the production cost is reduced.
First metal cavity 4 and second metal cavity 5 are provided with the filtering shrouding mounting groove 7 with the casing intercommunication in adjacent medial surface, filtering shrouding 2 corresponds fixed the setting in filtering shrouding mounting groove 7 and through the fix with screw, and filtering shrouding 2 is used for providing the installation of inside and outside intercommunication part. Sealing setting through the electrically conductive sealing strip between filtering shrouding 2 and the filtering shrouding mounting groove 7 guarantees the leakproofness in metal cavity and the casing 1.
Be provided with on the filtering shrouding 2 and correspond a plurality of feed-through filter mounting holes 8 that communicate with first metal cavity 4 and second metal cavity 5 respectively, feed-through filter 3 is provided with a plurality ofly and corresponds and set up in feed-through filter mounting hole 8, and feed-through filter 3 is for shielding interference signal usefulness, passes through feed-through filter 3 effective filtering with first metal cavity 4 and the contact of second metal cavity 5 in the casing 1, accomplishes the butt joint.
The circuit board is provided with a plurality ofly, including first circuit board 9, second circuit board 10 and third circuit board 11, first circuit board 9 sets up in first metal cavity 4 and fixes on filtering shrouding 2 through hexagonal copper post 12, second circuit board 10 sets up in second metal cavity 5 and fixes on filtering shrouding 2 through hexagonal copper post 12, indicator lamp, fuse etc. in first metal cavity 4 and the second metal cavity 5 are connected respectively to first circuit board 9 and second circuit board 10, facilitate the wiring installation.
The third circuit board 11 is arranged outside the metal cavity and fixed on the filtering sealing plate 2 through the hexagonal copper column 12, and is arranged opposite to the first circuit board 9 and the second circuit board 10, and the third circuit board 11 is used for connecting an interference source in the shell 1, so that wiring and installation are facilitated.
A plurality of feed-through filter 3's one end and third circuit board 11 correspond and are connected, and the other end corresponds with first circuit board 9 and second circuit board 10 respectively and is connected, and feed-through filter 3 is through being connected with first circuit board 9, second circuit board 10 and third circuit board 11 back switching again for improve the convenience and the stability of wiring.
Interference signals generated by an interference source in the shell 1 cannot directly penetrate through the metal cavity, and are shielded and filtered through the feed-through filter 3, so that the paths of the interference signals conducted through cables and the like are effectively blocked.
To sum up, the utility model discloses a mechanical shielding protection structure of EMC who points out is as external interface district through designing solitary sealed metal cavity to come as the shielding of intermediate junction spare and filter interference signal through the filter of feeding through, effectually blocked its route of mode conduction such as through cables, avoided the interference to equipment's external interface district production, ensured the accuracy of EMC test.
The above-mentioned only be the embodiment of the utility model, not consequently the restriction the patent scope of the utility model, all utilize the equivalent structure or equivalent flow transform that the content of the specification was done, or directly or indirectly use in other relevant technical field, all the same reason is included in the patent protection scope of the utility model.
Claims (7)
1. The utility model provides an EMC's mechanical shielding protective structure, sets up in the casing, its characterized in that, including metal cavity, filtering shrouding and feed-through filter, metal cavity sets up with casing formula structure as an organic whole, the metal cavity top sets up to the opening, the metal cavity is provided with the metal lid and passes through the fix with screw at the opening part, the metal cavity includes first metal cavity and second metal cavity, first metal cavity and second metal cavity be provided with the filtering shrouding mounting groove of casing intercommunication at adjacent medial surface, the filtering shrouding corresponds fixed the setting in filtering shrouding mounting groove and passes through the fix with screw, be provided with on the filtering shrouding and correspond a plurality of feed-through filter mounting holes that communicate with first metal cavity and second metal cavity respectively, feed-through filter is provided with a plurality ofly and corresponds the setting in the feed-through filter mounting hole.
2. The EMC mechanical shielding and protection structure of claim 1, wherein the metal cover and the opening at the top of the metal cavity are sealed by a conductive sealing tape.
3. The EMC mechanical shielding structure of claim 1, wherein the metal cavity bottom is spaced apart from a bottom inside the housing.
4. The EMC mechanical shielding and protection structure of claim 1, wherein the filter sealing plate and the filter sealing plate mounting groove are sealed by a conductive sealing strip.
5. The mechanical shielding protection structure of EMC of claim 1, further comprising a circuit board.
6. The EMC mechanical shielding and protecting structure of claim 5, wherein the circuit boards are provided in plurality, and comprise a first circuit board, a second circuit board and a third circuit board, the first circuit board is disposed in the first metal cavity and fixed on the filter sealing plate through the hexagonal copper pillar, the second circuit board is disposed in the second metal cavity and fixed on the filter sealing plate through the hexagonal copper pillar, and the third circuit board is disposed outside the metal cavity and fixed on the filter sealing plate through the hexagonal copper pillar, and is disposed opposite to the first circuit board and the second circuit board.
7. The EMC mechanical shielding structure of claim 6, wherein a plurality of the feed-through filters are connected at one end to the third wiring board and at the other end to the first wiring board and the second wiring board, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221264951.6U CN217608213U (en) | 2022-05-25 | 2022-05-25 | EMC's mechanical shielding protective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221264951.6U CN217608213U (en) | 2022-05-25 | 2022-05-25 | EMC's mechanical shielding protective structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217608213U true CN217608213U (en) | 2022-10-18 |
Family
ID=83568919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221264951.6U Active CN217608213U (en) | 2022-05-25 | 2022-05-25 | EMC's mechanical shielding protective structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217608213U (en) |
-
2022
- 2022-05-25 CN CN202221264951.6U patent/CN217608213U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104063021A (en) | Electronic device | |
| US20030227760A1 (en) | EMC shield and housing for electronic components | |
| CN2886992Y (en) | Electromagnetic proof machine cabinet | |
| TW201448345A (en) | Antenna module and electronic system | |
| CN217608213U (en) | EMC's mechanical shielding protective structure | |
| US5438160A (en) | Sealed, shielded and filtered header receptacle | |
| CN216214188U (en) | PV terminal assembly and electrical device | |
| CN216058116U (en) | Anti-interference circuit board | |
| JPS6137117Y2 (en) | ||
| CN207969299U (en) | A kind of filter shielding case | |
| CN218163205U (en) | Filter shell with external wiring terminal protection | |
| CN202178653U (en) | Junction box | |
| CN216253737U (en) | Electromagnetic compatibility protector | |
| CN220383356U (en) | High-frequency control assembly mounting structure | |
| CN215073727U (en) | High-efficient jam-proof communication controller | |
| JPH023670Y2 (en) | ||
| CN205791344U (en) | A kind of connection box | |
| CN211669477U (en) | Backlight module for improving EMC and display module | |
| CN219478204U (en) | PCB board with shielding structure | |
| CN215452944U (en) | EMC test box of optical module | |
| CN213029102U (en) | Full electromagnetic shielding structure | |
| CN207491403U (en) | A kind of FTU housings with unique waterproof construction | |
| CN219678913U (en) | Driving control box of electric steering engine | |
| CN213305846U (en) | Electronic device protective sleeve, circuit board and electronic device | |
| CN213755217U (en) | Marine electrical control box with electromagnetic protection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |