CN201178553Y - Shielding construction preventing electronic components from electromagetic interference and electronic apparatus - Google Patents
Shielding construction preventing electronic components from electromagetic interference and electronic apparatus Download PDFInfo
- Publication number
- CN201178553Y CN201178553Y CNU2008201048991U CN200820104899U CN201178553Y CN 201178553 Y CN201178553 Y CN 201178553Y CN U2008201048991 U CNU2008201048991 U CN U2008201048991U CN 200820104899 U CN200820104899 U CN 200820104899U CN 201178553 Y CN201178553 Y CN 201178553Y
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- China
- Prior art keywords
- skeleton frame
- electronic component
- masking structure
- circuit board
- lid
- 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
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model discloses a shielding structure and a related electronic device thereof. The shielding structure can be used for preventing an electronic element arranged on a circuit board from being interfered by electromagnetic waves. The shielding structure comprises a frame seat arranged on the circuit board and surrounding the electronic element. At least a positioning element is arranged on the frame seat. The shielding structure further comprises a shielding cover used for covering on the frame seat to shield the electronic element. At least a hole is formed on the cover body of the shielding cover and used for buckling the positioning element of the frame seat.
Description
Technical field
The utility model provides a kind of masking structure and related electronic device thereof, refers to that especially a kind of electronic component that is used for preventing to be arranged on the circuit board is subjected to the masking structure and the related electronic device thereof of Electromagnetic Interference.
Background technology
General electronic installation comprises many electronic component and circuit that are installed on the circuit board, its for electromagnetic interference (Electromagnetic Interference, EMI) quite responsive.Electromagnetic interference may come from inside or outer member, and this interference can cause signal quality to reduce or signal is all decayed, and causes the electronic installation can't normal operation.Therefore the electromagnetic interference masking structure just designs and covers inside or electromagnetic interference that outer member caused.
For instance, portable electric device such as GPS device, mobile phone, personal digital assistant device, or removable computer etc., be used for covering the masking structure of electromagnetic interference in the common existence of internal system.See also Fig. 1, Fig. 1 is the schematic diagram of prior art one masking structure 10, and masking structure 10 can be a metal cover board for single type structure and its, is used for coating the electronic component 14 that hides on the circuit board 12, to reach the effect that prevents Electromagnetic Interference.Yet masking structure 10 is to be weldingly fixed on the circuit board 12, so when being subjected to masking structure 10 and hiding electronic component 14 in being coated on and need change or adjust, must be with the scolder heating and melting of 12 of masking structure 10 and circuit boards, can take off replacing or the adjustment of masking structure 10, again covering structure 10 is welded on the circuit board 12 more afterwards to carry out electronic component 14.Thus, not only can waste man-hour and scolder, and contiguous electronic component causes damage on might be to circuit board 12 in the process of hot melt scolder once again.
In order to improve above-mentioned shortcoming, the design of two-piece type masking structure is just arisen at the historic moment.See also Fig. 2, Fig. 2 is the schematic appearance of another masking structure 30 of prior art, and masking structure 30 includes a base 32, and a loam cake 34, and base 32 all can be made up of metal material with loam cake 34.Base 32 is fixed on the circuit board 36, and loam cake 34 is to be incorporated into base 32 in separable mode, and it is to be used for coating the electronic component 38 that hides on the circuit board 36, to reach the effect that prevents Electromagnetic Interference.See also Fig. 3, Fig. 3 is the end view of the base 32 of prior art masking structure 30, though the way of this two-part construction can be improved the dismounting problem of single type structure, but because the restriction of metalwork process technology now, make base 32 except the part of bottom and circuit board 36 welding (vertical component effect), also had more the extension part of level, the part that its level extends can be covered the electronic component 38 of its below, though this covering can not have any impact to electronic component 38 or system itself, but at product when stage and semi-finished product is tested, detect (Auto Optical Inspection as automated optical, AOI) ((In-Circuit Testing or during in-circuit test, ICT), just can influence the result that testing equipment detects, cause can the survey rate low.For instance, because automated optical detection equipment is to utilize led light source that light is incident upon electronic component 38 (as RLC element or IC etc.) on the circuit board 36, take with video camera again, to reach situations such as checking Short Item and element displacement, but the horizontal extension branch of base 32 covers the light of LED, and video camera also can't be taken the element of its below, thus reduce that automated optical detects can the survey rate; Or for in-circuit test, because in-circuit test equipment is to utilize probe to contact with part pin on the circuit board 36, therefore also needing enough spaces above part tests, but the horizontal extension obstruction too of base 32 test of probe, therefore can cause can the survey rate descending of in-circuit test.So it is simple and easy and can not hinder the masking structure of element test how to design a technology, the just problem of disturbing mechanism's design to make great efforts for anti electromagnetic wave now.
Summary of the invention
The utility model provides masking structure and the related electronic device thereof that a kind of electronic component that is used for preventing to be arranged on the circuit board is subjected to Electromagnetic Interference, to solve the above problems.
Claim of the present utility model is to disclose a kind of masking structure, an electronic component that is used for preventing to be arranged on the circuit board is subjected to Electromagnetic Interference, this masking structure includes a skeleton frame, is arranged on this circuit board and frame encloses in this electronic component, and this skeleton frame is provided with at least one keeper.This masking structure also includes a covering, is used for being covered on this skeleton frame to cover this electronic component, and this lid is provided with at least one hole, is used for engaging this keeper of this skeleton frame.
Claim of the present utility model is also to disclose a kind of masking structure, an electronic component that is used for preventing to be arranged on the circuit board is subjected to Electromagnetic Interference, this masking structure includes a skeleton frame, is arranged on this circuit board and frame encloses in this electronic component, and this skeleton frame is provided with at least one hole.This masking structure also includes a covering, is used for being covered on this skeleton frame to cover this electronic component, and this lid is provided with at least one keeper, is used for being sticked in this hole of this skeleton frame.
But claim of the present utility model also discloses the electronic installation that a kind of anti electromagnetic wave disturbs, it includes a circuit board, it can be for an electronic component is set, an and masking structure, be used for covering this electronic component on this circuit board, be subjected to Electromagnetic Interference to prevent this electronic component, this masking structure includes a skeleton frame, be arranged on this circuit board and frame encloses in this electronic component, this skeleton frame is provided with at least one keeper.This masking structure also includes a covering, is used for being covered on this skeleton frame to cover this electronic component, and this lid is provided with at least one hole, is used for engaging this keeper of this skeleton frame.
But claim of the present utility model is also to disclose the electronic installation that a kind of anti electromagnetic wave disturbs, it includes a circuit board, it can be for an electronic component is set, an and masking structure, be used for covering this electronic component on this circuit board, be subjected to Electromagnetic Interference to prevent this electronic component, this masking structure includes a skeleton frame, be arranged on this circuit board and frame encloses in this electronic component, this skeleton frame is provided with at least one hole.This masking structure also includes a covering, is used for being covered on this skeleton frame to cover this electronic component, and this lid is provided with at least one keeper, is used for being sticked in this hole of this skeleton frame.
Description of drawings
Fig. 1 is the schematic diagram of prior art masking structure.
Fig. 2 is the schematic appearance of another masking structure of prior art.
Fig. 3 is the end view of the base of prior art masking structure.
Fig. 4 is the element explosive view of the utility model first embodiment electronic installation.
The schematic diagram that Fig. 5 detects electronic component for the utility model.
Fig. 6 is the assembly drawing of the utility model electronic installation.
Fig. 7 is the element explosive view of the utility model second embodiment electronic installation.
The main element symbol description:
10 masking structures, 12 circuit boards
14 electronic components
30 masking structures, 32 bases
34 loam cakes, 36 circuit boards
38 electronic components
50 electronic installations, 52 circuit boards
54 electronic components, 56 masking structures
58 skeleton frames, 60 keepers
62 hide 64 lids
66 outer rims, 68 holes
100 electronic installations, 102 masking structures
104 skeleton frames, 106 holes
108 hide 110 lids
112 outer rims, 114 keepers
Embodiment
See also Fig. 4, but the element explosive view of Fig. 4 to be the utility model first embodiment a kind of electronic installation 50 that anti electromagnetic wave disturbs, electronic installation 50 includes a circuit board 52, it can be a printed circuit board (PCB), and be to be provided with a plurality of electronic components 54 (as RLC element or IC etc.) on it, electronic installation 50 also includes a masking structure 56, is used for covering the electronic component 54 on the circuit board 52, is subjected to Electromagnetic Interference to prevent electronic component 54.Masking structure 56 includes a skeleton frame 58, is arranged on the circuit board 52 and frame encloses in electronic component 54, and skeleton frame 58 can be a hollow horizontal metal sheet, and skeleton frame 58 is provided with at least one keeper 60, and keeper 60 can be a protruding part, as trip or pin (pin) etc.Masking structure 56 also includes one and hides 62, be used for being covered on the skeleton frame 58 to cover electronic component 54, hiding 62 can be made up of metal material, hide 62 and include a lid 64, be formed with a medium altitude chamber in it, and hide 62 and also include an outer rim 66, it extends lid 64, be formed with at least one hole 68 on the outer rim 66, it is the position that is arranged at the keeper 60 of corresponding skeleton frame 58 respectively, when covering 62 was assembled on the skeleton frame 58, the keeper 60 of skeleton frame 58 was to be sticked in respectively in the hole 68 of covering 62.
See also Fig. 5, the schematic diagram that Fig. 5 detects electronic component 54 for the utility model, skeleton frame 58 can weld or other modes are smooth is fixed on the circuit board 52, because skeleton frame 58 is a horizontal metal sheet, meaning does not promptly have the bending of 90 degree, so do not have the doubt of covering electronic component 54.When electronic installation 50 is tested (detecting or in-circuit test as automated optical) in stage and semi-finished product, can will not hide 62 earlier and be assembled in skeleton frame 58, will hide 62 behind to be detected the finishing again and be sticked in skeleton frame 58.Because automated optical detection equipment is to utilize led light source that light is incident upon electronic component 54 (as RLC element or IC etc.) on the circuit board 52, take with video camera again, to reach situations such as checking Short Item and element displacement, this moment, skeleton frame 58 just can not cover the light of LED, and video camera also can be taken the element of its below, thus promote effectively that automated optical detects can the survey rate; Or for in-circuit test, because in-circuit test equipment is to utilize the part pin of electronic component 54 on probe and the circuit board 52 to contact, therefore also needing enough spaces above part tests, because skeleton frame 58 there is no the horizontal-extending part, so can not hinder the test of probe, thus promote in-circuit test effectively can the survey rate.
See also Fig. 6, Fig. 6 is the assembly drawing of the utility model electronic installation 50, when electronic installation 50 test finish after, the keeper 60 of skeleton frame 58 can be sticked in respectively in the hole 68 of covering 62, fixedly be assembled on the skeleton frame 58 will hide 62, hide 62 electronic components 54 that just can be used to cover on the circuit board 52 thus, be subjected to Electromagnetic Interference to prevent electronic component 54.And when being subjected to hiding 62 when hiding electronic component 54 in being coated on and need change or adjust, then can be directly with keeper 60 by extracting in the hole 68, hide 62 replacing or adjustment to take off, will hide 62 afterwards more again and be assembled on the skeleton frame 58 to carry out electronic component 54.So the design of the utility model masking structure 56 can reduce assembling man-hour and complexity greatly, and can not waste scolder and avoid welding electronic component contiguous on the circuit board 52 is caused damage.
In addition, in the above-mentioned masking structure 56 keeper 60 (bull) of skeleton frame 58 with hide 62 hole 68 (parent part) also interchangeable of position is set, see also Fig. 7, but the element explosive view of Fig. 7 to be the utility model second embodiment a kind of electronic installation 100 that anti electromagnetic wave disturbs, with the previous embodiment difference be that electronic installation 100 also comprises a masking structure 102, it includes a skeleton frame 104, be arranged on the circuit board 52 and frame encloses in electronic component 54, skeleton frame 104 can be a hollow horizontal metal sheet, and skeleton frame 104 is provided with at least one hole 106.Masking structure 102 also includes one and hides 108, be used for being covered on the skeleton frame 104 to cover electronic component 54, hiding 108 can be made up of metal material, hide 108 and include a lid 110, be formed with a medium altitude chamber in it, and hide 110 and also include an outer rim 112, it extends lid 110, be formed with at least one keeper 114 on the outer rim 112, it can be a protruding part, as trip or pin (pin) etc., and is arranged at the position of the hole 106 of corresponding skeleton frame 104 respectively, when covering 110 was assembled on the skeleton frame 104, the keeper 114 of covering 110 was sticked in respectively in the hole 106 of skeleton frame 104.And the action principle of second embodiment is same as first embodiment, so no longer describe in detail in this.
Compared to prior art, the utility model is used for preventing the masking structure of Electromagnetic Interference and the welding dismounting problem that electronic installation can improve prior art single type masking structure, and also can improve the problem that prior art two-piece type masking structure hinders element test because horizontal extension covers electronic component, so the utility model provides a kind of technology and easily assembled and can increase the masking structure that element test can the survey rate.
The above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim scope change and modify, and all should belong to the covering scope of the utility model patent.
Claims (20)
1. masking structure, an electronic component that is used for preventing to be arranged on the circuit board is subjected to Electromagnetic Interference, it is characterized in that, and described masking structure includes:
One skeleton frame is arranged on the described circuit board and frame encloses in described electronic component, and described skeleton frame is provided with at least one keeper; And
One hides, and is used for being covered on the described skeleton frame to cover described electronic component, and described lid is provided with at least one hole, is used for engaging the described keeper of described skeleton frame.
2. masking structure as claimed in claim 1 is characterized in that, described skeleton frame is a horizontal metal sheet.
3. masking structure as claimed in claim 1 is characterized in that, the described keeper of described skeleton frame is a trip.
4. masking structure as claimed in claim 1 is characterized in that described covering includes;
One lid is formed with a medium altitude chamber in the described lid; And
One outer rim, described outer rim extends described lid, and described hole is arranged on the described outer rim.
5. masking structure as claimed in claim 1 is characterized in that described covering is made up of metal material.
6. masking structure, an electronic component that is used for preventing to be arranged on the circuit board is subjected to Electromagnetic Interference, it is characterized in that, and described masking structure includes:
One skeleton frame is arranged on the described circuit board and frame encloses in described electronic component, and described skeleton frame is provided with at least one hole; And
One hides, and is used for being covered on the described skeleton frame to cover described electronic component, and described lid is provided with at least one keeper, is used for being sticked in the described hole of described skeleton frame.
7. masking structure as claimed in claim 6 is characterized in that, described skeleton frame is a horizontal metal sheet.
8. masking structure as claimed in claim 6 is characterized in that, the described keeper of described covering is a trip.
9. masking structure as claimed in claim 6 is characterized in that described covering includes;
One lid is formed with a medium altitude chamber in the described lid; And
One outer rim, described outer rim extends described lid, and described keeper is arranged on the described outer rim.
10. masking structure as claimed in claim 6 is characterized in that described covering is made up of metal material.
But 11. the electronic installation that an anti electromagnetic wave disturbs it is characterized in that, include:
One circuit board, described circuit board can be for an electronic component is set; And
One masking structure is used for covering the described electronic component on the described circuit board, is subjected to Electromagnetic Interference to prevent described electronic component, and described masking structure includes:
One skeleton frame is arranged on the described circuit board and frame encloses in described electronic component, and described skeleton frame is provided with at least one keeper; And
One hides, and is used for being covered on the described skeleton frame to cover described electronic component, and described lid is provided with at least one hole, is used for engaging the described keeper of described skeleton frame.
12. electronic installation as claimed in claim 11 is characterized in that, described skeleton frame is a horizontal metal sheet.
13. electronic installation as claimed in claim 11 is characterized in that, the described keeper of described skeleton frame is a trip.
14. electronic installation as claimed in claim 11 is characterized in that, described covering includes;
One lid is formed with a medium altitude chamber in the described lid; And
One outer rim, described outer rim extends described lid, and described hole is arranged on the described outer rim.
15. electronic installation as claimed in claim 11 is characterized in that, described covering is made up of metal material.
But 16. the electronic installation that an anti electromagnetic wave disturbs it is characterized in that, include:
One circuit board, described circuit board can be for an electronic component is set; And
One masking structure is used for covering the described electronic component on the described circuit board, is subjected to Electromagnetic Interference to prevent described electronic component, and described masking structure includes:
One skeleton frame is arranged on the described circuit board and frame encloses in described electronic component, and described skeleton frame is provided with at least one hole; And
One hides, and is used for being covered on the described skeleton frame to cover described electronic component, and described lid is provided with at least one keeper, is used for being sticked in the described hole of described skeleton frame.
17. electronic installation as claimed in claim 16 is characterized in that, described skeleton frame is a horizontal metal sheet.
18. electronic installation as claimed in claim 16 is characterized in that, the described keeper of described covering is a trip.
19. electronic installation as claimed in claim 16 is characterized in that, described covering includes;
One lid is formed with a medium altitude chamber in the described lid; And
One outer rim, described outer rim extends described lid, and described keeper is arranged on the described outer rim.
20. electronic installation as claimed in claim 16 is characterized in that, described covering is made up of metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201048991U CN201178553Y (en) | 2008-04-15 | 2008-04-15 | Shielding construction preventing electronic components from electromagetic interference and electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201048991U CN201178553Y (en) | 2008-04-15 | 2008-04-15 | Shielding construction preventing electronic components from electromagetic interference and electronic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201178553Y true CN201178553Y (en) | 2009-01-07 |
Family
ID=40218574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201048991U Expired - Lifetime CN201178553Y (en) | 2008-04-15 | 2008-04-15 | Shielding construction preventing electronic components from electromagetic interference and electronic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201178553Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369895A (en) * | 2013-08-02 | 2013-10-23 | 南车株洲电力机车研究所有限公司 | Electromagnetic shielding cabinet |
-
2008
- 2008-04-15 CN CNU2008201048991U patent/CN201178553Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369895A (en) * | 2013-08-02 | 2013-10-23 | 南车株洲电力机车研究所有限公司 | Electromagnetic shielding cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090107 |