CN204031722U - Electromagnetic protection case - Google Patents
Electromagnetic protection case Download PDFInfo
- Publication number
- CN204031722U CN204031722U CN201420345638.4U CN201420345638U CN204031722U CN 204031722 U CN204031722 U CN 204031722U CN 201420345638 U CN201420345638 U CN 201420345638U CN 204031722 U CN204031722 U CN 204031722U
- Authority
- CN
- China
- Prior art keywords
- casing
- layers
- electromagnetic protection
- sealing ring
- protection case
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 10
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000001228 spectrum Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Casings For Electric Apparatus (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses a kind of electromagnetic protection case, comprise the casing and case lid that inner surface are provided with at least two-layer different metal screen, the first sealing ring and the second sealing ring is provided with between case lid and casing, described metal screen layer comprises layers of copper and 6061 aluminium alloy layers, and layers of copper and 6061 aluminium alloy layers set gradually from intermediate layer to outer field order.The utility model constructs rationally, it is ingenious to design, screening effectiveness in strong-electromagnetic field is excellent, have passed the strict test of EMI and EMC, through using in the actual installation of certain MTR, the equipment installed in electromagnetic protection case is in the operation reaching half a year, be not subject to electromagnetic interference, ensure that Sensitive Apparatus reliably runs exactly, reduce unnecessary manual maintenance and check cost.The utility model is an innovation to electromangnetic spectrum from now on and improvement, is beneficial to and promotes the use of.
Description
Technical field
The utility model belongs to electromangnetic spectrum field, is specifically related to a kind of electromagnetic protection case.
Background technology
Electromagnetic pulse is a kind of transient electromagnetic phenomenon, has the features such as instantaneity, broadband, high field intensity, sphere of action be large, can pass through the multiple coupling paths such as antenna, hole seam, cable and produce serious threat to electronic equipment and system.Electromagnetic pulse is the important component part of electromagnetic environment, and it is described with time domain.
Along with the extensive use of microelectronic component, electronic equipment or system increase increasingly to the sensitiveness of electromagnetic pulse and vulnerability, seriously govern the electromagnetism survival ability of electronic equipment or system, adopt shield technology effectively can improve the protective capacities of rapid wear device at bad electromagnetic environment.
Under increasingly severe electromagnetic environment, for this difficult problem of radiation protection ability improving Sensitive Apparatus, use electromagnetic protection case to be direct effective settling mode, whether the reasonability of its structural design is electromagnet shield effect direct factor just.
Utility model content
The purpose of this utility model is, for above-mentioned deficiency, provide that a kind of design is ingenious, structure is succinct, electromagnet shield effect is high, for improving the electromagnetic protection case of Sensitive Apparatus protective capacities in bad electromagnetic environment.
For achieving the above object, technical scheme provided by the utility model is: a kind of electromagnetic protection case, comprise the casing and case lid that inner surface are provided with at least two-layer different metal screen, the first sealing ring and the second sealing ring is provided with between case lid and casing, described metal screen layer comprises layers of copper and 6061 aluminium alloy layers, and layers of copper and 6061 aluminium alloy layers set gradually from intermediate layer to outer field order.
Improve as one of the present utility model, described casing and case lid are 304 stainless steel products.
Improve as one of the present utility model, the appearance profile of described casing is square, and is provided with and reinforces angle gear in casing, and the quantity of reinforcing angle gear is four pieces, lays respectively on the position at four angles of casing inner bottom part.
Improve as one of the present utility model, the appearance profile of described case lid is square, case lid offers two data acquisition windows for visible rays transmission, two data acquisition windows are provided with Transparent Parts, and fixing described Transparent Parts is provided with fixture in the position of two data acquisition windows.
Improve as one of the present utility model, the overall dimension of described first sealing ring is less than the overall dimension of the second sealing ring.
Improve as one of the present utility model, described metal screen layer is two-layer, is layers of copper and 6061 aluminium alloy layers, the four sides side plate of described casing is provided with described layers of copper and 6061 aluminium alloy layers.
Improve as one of the present utility model, described casing inner bottom part is provided with the mount pad installed for laser sensor, and the quantity of mount pad is two, is positioned at the position below described two data acquisition windows.
The beneficial effects of the utility model are: structure of the present utility model rationally, design ingenious, casing and case lid all adopt 304 stainless steels (weak magnetic conduction, high impedance) to make, and, casing and case lid are provided with layers of copper (not magnetic conduction, Low ESR) and 6061 aluminium alloy layers (not magnetic conduction, middle impedance), can be used for laser sensor in casing to install and use, for laser sensor zero deflection, work continually and steadily, without feedback signal deformity and influential system precision problem under strong-electromagnetic field environment.
The utility model have passed the strict test of EMI and EMC, and in test period section, the equipment installed in electromagnetic protection case is not subject to strong-electromagnetic field interference, ensure that Sensitive Apparatus reliably runs exactly, reduces unnecessary manual maintenance and check cost.
Casing and the assembly of case lid phase are provided with the first sealing ring and the second sealing ring, and waterproof and dampproof usefulness is better, and isolated harmful substance enters in casing.The utility model is an innovation to electromangnetic spectrum from now on and improvement, is beneficial to and promotes the use of.
Below in conjunction with accompanying drawing and embodiment, the utility model is further illustrated.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of case lid in Fig. 1.
Fig. 3 is B-B cross-sectional view in Fig. 2.
Fig. 4 is the structure for amplifying schematic diagram of local A in Fig. 3.
Attached number in the figure illustrates: 1-casing, 2-case lid, 21-Transparent Parts, 22-fixture, 3-layers of copper, 4-6061 aluminium alloy layer, 5-reinforce angle gear, 6-mount pad, 7-laser sensor, 8-first sealing ring, 9-second sealing ring.
Embodiment
See Fig. 1 to Fig. 2, a kind of electromagnetic protection case that the present embodiment provides, comprise the casing 1 and case lid 2 that inner surface are provided with at least two-layer different metal screen, the first sealing ring 8 and the second sealing ring 9 is provided with between case lid 2 and casing 1, described metal screen layer comprises layers of copper 3 and 6061 aluminium alloy layer 4, (wherein, layers of copper 3 is intermediate layer, and 6061 aluminium alloy layers 4 are outer.) layers of copper 3 and 6061 aluminium alloy layer 4 sets gradually from intermediate layer to outer field order; Described casing 1 and case lid 2 are 304 stainless steel products.
As preferably, described metal screen layer is two-layer, is layers of copper 3 and 6061 aluminium alloy layer 4, the four sides side plate of described casing 1 is provided with described layers of copper 3 and 6061 aluminium alloy layer 4; In the present embodiment, the gauge of layers of copper 3 is 2 millimeters, and the gauge of 6061 aluminium alloy layers 4 is 1 millimeter, and the gauge of the four sides side plate of described casing 1 is 4 millimeters, while the necessary material thickness of reservation reaches good electromagnet shield effect, be beneficial to and reduce overall manufacturing cost.
As preferably, the appearance profile of described casing 1 is square, and is provided with and reinforces angle gear 5 in casing 1, and the quantity of reinforcing angle gear 5 is four pieces, lays respectively on the position at four angles of casing 1 inner bottom part; Be beneficial to casing 1 and can bear large outer active force, be unlikely to produce casing 1 deformation and occur gap.
As preferably, the appearance profile of described case lid 2 is square, case lid 2 offers two data acquisition windows for visible rays transmission, two data acquisition windows are provided with Transparent Parts 21, Transparent Parts 21 is for having the optical glass of stable optical property, the through performance of visible rays is better, and Transparent Parts 21 is assemblied on the position of two data acquisition windows by fixture 22, is beneficial to the replacement operation in maintenance.
As preferably, the overall dimension of described first sealing ring 8 is less than the overall dimension of the second sealing ring 9, and the second sealing ring 9 is arranged on the peripheral position of the first sealing ring 8, forms double sealing structure, waterproof and humidity resistance good, sealing usefulness is high.
As preferably, described casing 1 inner bottom part is provided with the mount pad 6 installed for laser sensor 7, the quantity of mount pad 6 is two, be positioned at the position below described two data acquisition windows, when assembling uses, laser sensor 7 is arranged on described mount pad 6, be electrically connected with casing 1 external equipment by cable, described cable is be not less than the 96 Double-protection structual shield lines compiled, wherein, holding wire in cable is in shielding with to connecting in accordance with low resistance and low inductive grounding principle, in order to ensure that signal passes the stability of speed, independent ground wire is connected with outside casing 1.
Main purpose of the present utility model reduces and eliminate the destruction of strong-electromagnetic field to equipment or device internal electrical magnetic susceptibility unit, in actual conditions, there is some Sensitive Apparatus more responsive to crest voltage, and responsive not to energy; Some sensing unit is responsive to energy comparison, and responsive not to crest voltage.Therefore, in practical application, corresponding malformation can be made to casing 1 and case lid 2 part, still strengthen energy barrier performance priority select in order to strengthen peak value screening effectiveness.
Above embodiment is only for illustration of the utility model; and be not limitation of the utility model; the those of ordinary skill of relevant technical field; when not departing from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (7)
1. an electromagnetic protection case, it is characterized in that, comprise the casing and case lid that inner surface are provided with at least two-layer different metal screen, the first sealing ring and the second sealing ring is provided with between case lid and casing, described metal screen layer comprises layers of copper and 6061 aluminium alloy layers, and layers of copper and 6061 aluminium alloy layers set gradually from intermediate layer to outer field order.
2. electromagnetic protection case as described in claim l, is characterized in that, described casing and case lid are 304 stainless steel products.
3. electromagnetic protection case as claimed in claim 2, it is characterized in that, the appearance profile of described casing is square, and is provided with and reinforces angle gear in casing, and the quantity of reinforcing angle gear is four pieces, lays respectively on the position at four angles of casing inner bottom part.
4. electromagnetic protection case as claimed in claim 3, it is characterized in that, the appearance profile of described case lid is square, case lid offers two data acquisition windows for visible rays transmission, two data acquisition windows are provided with Transparent Parts, and fixing described Transparent Parts is provided with fixture in the position of two data acquisition windows.
5. electromagnetic protection case as claimed in claim 4, it is characterized in that, the overall dimension of described first sealing ring is less than the overall dimension of the second sealing ring.
6. electromagnetic protection case as claimed in claim 3, it is characterized in that, described metal screen layer is two-layer, is layers of copper and 6061 aluminium alloy layers, the four sides side plate of described casing is provided with described layers of copper and 6061 aluminium alloy layers.
7. electromagnetic protection case as claimed in claim 4, is characterized in that, described casing inner bottom part is provided with the mount pad installed for laser sensor, and the quantity of mount pad is two, is positioned at the position below described two data acquisition windows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345638.4U CN204031722U (en) | 2014-06-26 | 2014-06-26 | Electromagnetic protection case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345638.4U CN204031722U (en) | 2014-06-26 | 2014-06-26 | Electromagnetic protection case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204031722U true CN204031722U (en) | 2014-12-17 |
Family
ID=52071542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345638.4U Expired - Lifetime CN204031722U (en) | 2014-06-26 | 2014-06-26 | Electromagnetic protection case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204031722U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611772A (en) * | 2015-12-24 | 2016-05-25 | 天津大学 | Underwater sealing device for electromagnetic coupler |
| CN106998645A (en) * | 2016-01-25 | 2017-08-01 | 上海智远弘业机器人有限公司 | A kind of RFID for warehouse logisticses detects shielded box |
| CN109511256A (en) * | 2018-12-21 | 2019-03-22 | 安徽伟天机电设备有限公司 | A kind of means for anti-jamming of electromagnetic direct-drive device |
| CN110155522A (en) * | 2019-05-13 | 2019-08-23 | 广东智源信息技术有限公司 | A kind of electronic material evidence protective housing |
-
2014
- 2014-06-26 CN CN201420345638.4U patent/CN204031722U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611772A (en) * | 2015-12-24 | 2016-05-25 | 天津大学 | Underwater sealing device for electromagnetic coupler |
| CN106998645A (en) * | 2016-01-25 | 2017-08-01 | 上海智远弘业机器人有限公司 | A kind of RFID for warehouse logisticses detects shielded box |
| CN109511256A (en) * | 2018-12-21 | 2019-03-22 | 安徽伟天机电设备有限公司 | A kind of means for anti-jamming of electromagnetic direct-drive device |
| CN110155522A (en) * | 2019-05-13 | 2019-08-23 | 广东智源信息技术有限公司 | A kind of electronic material evidence protective housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Electromagnetic protective box Effective date of registration: 20161117 Granted publication date: 20141217 Pledgee: The Bank of Dongguan Songshan Lake Science and technology branch of the Limited by Share Ltd. Pledgor: DONGGUAN NANNAR ELECTRONICS TECHNOLOGY Co.,Ltd. Registration number: 2016440000026 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230227 Granted publication date: 20141217 Pledgee: The Bank of Dongguan Songshan Lake Science and technology branch of the Limited by Share Ltd. Pledgor: DONGGUAN NANNAR ELECTRONICS TECHNOLOGY Co.,Ltd. Registration number: 2016440000026 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 10, Wansheng Road, Wanjiang Street, Dongguan, Guangdong 523000 Patentee after: Dongguan Nuoli Technology Co.,Ltd. Address before: 523000 3rd Floor, Wanhongcun Building, Wanjiang Community, Dongguan City, Guangdong Province Patentee before: DONGGUAN NANNAR ELECTRONICS TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |