CN201078884Y - Shield structure for preventing electromagnetic interference - Google Patents
Shield structure for preventing electromagnetic interference Download PDFInfo
- Publication number
- CN201078884Y CN201078884Y CNU2007201265931U CN200720126593U CN201078884Y CN 201078884 Y CN201078884 Y CN 201078884Y CN U2007201265931 U CNU2007201265931 U CN U2007201265931U CN 200720126593 U CN200720126593 U CN 200720126593U CN 201078884 Y CN201078884 Y CN 201078884Y
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- edge
- masking structure
- electromagnetic interference
- circuit board
- interference
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Abstract
The utility model is a shielding structure for electromagnetic interference prevention, which is a shielding structure of electronic components covered on a circuit board for electromagnetic interference prevention. The shielding structure is provided with a lower cover and an upper cover; the lower cover comprises a frame body with frame edge extending downwards to form a side wall; wherein, one frame edge is provided with a fastening hole; an elastic trip element extends from one edge of an upper cover plate; the middle segment of the elastic trip element sinks to form an elastic rib; other edge of the upper cover plate is provided with a trip structure; the elastic rib intervenes the fastening hole elastically and the trip structure intervenes the corresponding frame edge on the lower cover to facilitate the upper cover plate cover the frame body and then facilitate the shielding structure cover arranged on the circuit board to cover the electronic components.
Description
Technical field
The utility model relates to a kind of usefulness in case the masking structure of electromagnetic interference, particularly relate to a kind of being used in the electronic equipment, the effective electromagnetic interference of electronic component on the protection circuit plate, also can open at any time masking structure repair or replace cover and cover electronic component and can convenient cover back, and can be installed in fast need not melt on the circuit board scolding tin also can dismantle masking structure with the usefulness of breaking circuit plate in case the masking structure of electronic component electromagnetic interference on the circuit board.
Background technology
For at the contingent Electromagnetic Interference of electronic component on the circuit board (EMI) to protect, often utilize the masking structure of metal material to be covered on electronic component on the circuit board, to prevent electromagnetic interference.
The technology that adopts box-like masking structure to cover electronic component is arranged in the existing known techniques, for example TaiWan, China patent M303619 number, M313957 number, M305566 number, I256878 number etc., after yet this type of patented technology fixed cover is located at electronic component on the circuit board, be not easy to disassemble, if in the time of will keeping in repair or change this electronic component, can cause very big puzzlement in the future.
Therefore, the improvement flip patented technology in response to and give birth to, example TaiWan, China patent M280636 number, M255652 number etc., it has detachable loam cake, for be convenient to change or keep in repair this electronic component in the future, but how firm, convenient, economic solution loam cake can repetitiously be connected and raise with lower cover, and clamping mechanism therebetween is the emphasis in the design.Current known prior art all has different defectives, and it makes raising of loam cake very not convenient for making clamping firm on the contrary, or complex structure causes cost to promote.
Further, some masking structure technology is that masking structure is welded on the circuit board, as No. the 00521561st, TaiWan, China patent, No. 00508065 patent etc., the action of its welding is feed consumption, consumption worker comparatively, and the problem that acceptance rate reduces takes place easily, making reliability reduce, also is the defective on this class prior art structural design.
This shows that the masking structure of above-mentioned existing anti-electromagnetic interference obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of novel usefulness in case the masking structure of electromagnetic interference belongs to one of current important research and development problem in fact, also becoming the current industry utmost point needs improved target.
Because the defective that the masking structure of above-mentioned existing anti-electromagnetic interference exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of novel usefulness in case the masking structure of electromagnetic interference, can improve the masking structure of general existing anti-electromagnetic interference, make it have more practicality.Through constantly research, design, and, create the utility model that has practical value finally through after studying sample and improvement repeatedly.
Summary of the invention
The purpose of this utility model is, overcome the defective of the masking structure existence of existing anti-electromagnetic interference, and provide a kind of novel usefulness in case the masking structure of electromagnetic interference, technical problem to be solved is to make it in electronic equipment, by a kind of novel masking structure, effectively the electromagnetic interference of electronic component on the protection circuit plate is very suitable for practicality.
Another purpose of the present utility model is, provide a kind of usefulness in case the masking structure of electromagnetic interference, technical problem to be solved is to make it further also can be after masking structure is installed on the circuit board, at any time can open masking structure keeps in repair, checks or change it and cover the electronic component that covers, follow-up and can cover back easily, be suitable for practicality more.
A purpose more of the present utility model is, provide a kind of usefulness in case the masking structure of electromagnetic interference, technical problem to be solved is to make it can be convenient to be installed on the circuit board fast, and does not need to melt scolding tin also can dismantle this masking structure with the breaking circuit plate after installing.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.A kind of usefulness that foundation the utility model proposes is in case the masking structure of electromagnetic interference, be in order to be covered on the electronic component on the circuit board, this masking structure comprises: cover piece once, comprise a framework, from the outer ledge of each edge of this framework, extend a side wall respectively downwards, on one of them edge of this framework and have a snapping hole, wherein be with contiguous this circuit board of the lower edge of these side walls, so that this time cover piece is arranged on this circuit board; An and upper cover plate, one edge of this upper cover plate extends an elastic clamping hook spare, the stage casing of this elastic clamping hook spare to lower recess to form an elastic rib, other edges of this upper cover plate have a coupler construction, interfere this snapping hole by this elastic rib elasticity, and interfere the corresponding edge of this time cover piece by this coupler construction, this upper cover plate is covered on this framework.
The purpose of this utility model and solve its technical problem and can also be able to be further achieved by the following technical measures.
Aforesaid usefulness is in case the masking structure of electromagnetic interference, wherein said coupler construction comprises two interference rib, this two interference rib is the relative side that has the side of this elastic clamping hook spare at this upper cover plate, and in the symmetric position of described relative side, extends laterally to form.
Aforesaid usefulness is in case the masking structure of electromagnetic interference, have more a location-plate between wherein said two interference rib, the edge of corresponding this coupler construction of described this time cover piece has two and interferes breach, this two interference rib stretches into from the below of this two interference breach respectively to interfere this remaining edge in two interference breach outside, and this location-plate is to stretch into to interfere this edge above this two edge of interfering between breach.
Aforesaid usefulness is in case the masking structure of electromagnetic interference, wherein said coupler construction comprises two keepers, this two keeper is the both sides side that has the side of this elastic clamping hook spare at this upper cover plate, extend laterally and downwards and bend inwards to form, the edge of corresponding this coupler construction of described this time cover piece has two and interferes holes, and this interference hole more comprises stretches into a hole and a location hole, and this keeper is after stretching into this and stretching into the hole, slip into this location hole, to interfere this edge.
Aforesaid usefulness is in case the masking structure of electromagnetic interference, and wherein said cover piece down and this upper cover plate are one-body molded to make with a sheet metal respectively.
Aforesaid usefulness is in case the masking structure of electromagnetic interference, wherein said circuit board has at least one penetrating hole, the side wall lower edge of this time cover piece extends downward a few angle, the terminal inflection of this angle is provided with an elasticity and colludes, this angle is to pass through this penetrating hole from this circuit board top, colludes with this elasticity and interferes in this circuit board lower surface to fix this masking structure.
Aforesaid usefulness is in case the masking structure of electromagnetic interference, and it is to the outside inflection of this time cover piece from this angle end that wherein said elasticity is colluded.
Aforesaid usefulness is in case the masking structure of electromagnetic interference, and it is to the inboard inflection of this time cover piece from this angle end that wherein said elasticity is colluded.
Aforesaid usefulness is in case the masking structure of electromagnetic interference, and the end that wherein said elasticity is colluded is further to this angle inflection.
The utility model compared with prior art has tangible advantage and beneficial effect.Via as can be known above, in order to achieve the above object, a kind of usefulness is provided the utility model in case the masking structure of electromagnetic interference is in order to be covered on the electronic component on the circuit board.This masking structure comprises a cover piece and a upper cover plate.
This time cover piece comprises a framework, certainly the outer ledge of each edge of this framework, extend a side wall respectively downwards, on one of them edge of this framework and have a snapping hole, wherein be with contiguous this circuit board of the lower edge of these side walls, so that this time cover piece is arranged on this circuit board.
This upper cover plate, the one edge extends an elastic clamping hook spare, the stage casing of this elastic clamping hook spare is to form an elastic rib to lower recess, other edges of this upper cover plate have a coupler construction, interfere this snapping hole by this elastic rib elasticity, and interfere the corresponding edge of this time cover piece by this coupler construction, this upper cover plate is covered on this framework.Wherein, this time cover piece and this upper cover plate are one-body molded to make with a sheet metal respectively.
Further, this circuit board has at least one penetrating hole, the side wall lower edge of this time cover piece extends downward a few angle, this angle end is that inflection one elasticity is colluded, this angle passes through this penetrating hole from this circuit board top, colludes with this elasticity and interferes in this circuit board lower surface to fix this masking structure.
By technique scheme, the utility model is used in case the masking structure of electromagnetic interference has following advantage and beneficial effect at least:
1, the utility model is by the characteristic of covering of the sheet metal of masking structure, can be in electronic equipment the effective electromagnetic interference of electronic component on the protection circuit plate.
2, further, the utility model utilizes this elastic clamping hook spare elasticity to interfere this snapping hole, also can be after masking structure be installed on the circuit board, at any time can open masking structure keeps in repair, checks or change it and cover the electronic component that covers, follow-up and can cover back easily, very easy to use.
3, in addition, the utility model utilizes this angle and terminal elasticity thereof to collude, and makes masking structure of the present utility model can be convenient to be installed on the circuit board apace, and after installing, does not need to melt scolding tin and also can dismantle this masking structure with the breaking circuit plate.
In sum, the utility model is that relevant a kind of usefulness is in case the masking structure of electromagnetic interference, be a kind of masking structure that is covered on electronic component on the circuit board, be in order to the protection electromagnetic interference, this masking structure has following cover piece and upper cover plate, following cover piece comprises framework, the edge of framework extends into side wall downwards, has a snapping hole on one of them edge, one edge of upper cover plate extends an elastic clamping hook spare, the stage casing of elastic clamping hook spare is to form an elastic rib to lower recess, other edges of upper cover plate are to have a coupler construction, interfere the snapping hole by elastic rib elasticity, and by corresponding edge on the cover piece under the coupler construction interference, upper cover plate is covered on the framework, and and then masking structure is covered with place on the circuit board with coated electric components.The utlity model has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and the masking structure of more existing anti-electromagnetic interference has the outstanding multinomial effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the side sectional view that the utility model masking structure is assembled in circuit board.
Fig. 2 is the structural representation of the utility model masking structure first embodiment.
Fig. 3 is the front view of upper cover plate of the present utility model.
Fig. 4 is the structural representation of the utility model masking structure second embodiment.
30: masking structure 32: following cover piece
34: upper cover plate 36: circuit board
3602h: penetrating hole 3202: side wall
38: angle 3802: elasticity is colluded
3204: framework 3204E: edge
3204h: snapping hole 3402: elastic clamping hook spare
3402R: elastic rib 40: coupler construction
40a: keeper 50h: interfere the hole
5002h: stretch into hole 5004h: location hole
40b: interference rib 3404: location-plate
60h: interfere breach
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to the usefulness that the utility model proposes in case its embodiment of the masking structure of electromagnetic interference, structure, feature and effect thereof, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present utility model can clearly present in the following detailed description that cooperates with reference to graphic preferred embodiment.Explanation by embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the utility model is limited.
Seeing also shown in Figure 1ly, is the side sectional view that the utility model masking structure 30 is assembled in circuit board 36.The usefulness of preferred embodiment of the present invention is in case the masking structure 30 of electromagnetic interference is in order to be covered on the electronic component on the circuit board 36.This masking structure 30 comprises a cover piece 32 and a upper cover plate 34.
Above-mentioned circuit board 36 has at least one penetrating hole 3602h, and as being two in the legend, side wall 3202 lower edges of following cover piece 32 are to extend downward a few angle 38, and as also being two in the legend, the end of angle 38 is that inflection is provided with an elasticity and colludes 3802.Angle 38 is to pass through penetrating hole 3602h downwards from the top of circuit board 36, and colludes 3802 with elasticity and interfere in the lower surface of circuit board 36, with fixing whole masking structure 30.
Seeing also shown in Figure 2ly, is the utility model with in case the structural representation of masking structure 30 first embodiment of electromagnetic interference.Above-mentioned following cover piece 32 also comprises a framework 3204 in addition, and the outer ledge of each edge 3204E of this framework 3204 certainly extends downwards respectively and is provided with side wall 3202.One of them edge 3204E of framework 3204 (among the figure for rear end edge 3204E) goes up and has a snapping hole 3204h.Further, be contiguous or contact circuit plate 36 with the lower edge of these side walls 3202, be arranged on the circuit board 36 will descend cover piece 32.
Above-mentioned upper cover plate 34, edge, its rear end be (backward) and extend and be provided with an elastic clamping hook spare 3402 outwards, and the stage casing of this elastic clamping hook spare 3402 is to be to lower recess to form an elastic rib 3402R, and other edges of upper cover plate 34 are to have a coupler construction 40.Stretch into downwards behind the 3204h of snapping hole by elastic rib 3402R and to interfere snapping hole 3204h, and interfere cover piece 32 corresponding edge 3204E down, upper cover plate 34 is covered on the framework 3204 by coupler construction 40 with elasticity.So, not only can raise repeatedly, cover and establish, and operation is very easy.Wherein, following cover piece 32 and upper cover plate 34 are one-body molded and make with a sheet metal respectively.
This coupler construction 40 has two most preferred embodiments in the present invention, is first embodiment with Fig. 2, structure shown in Figure 3, and it is to be positioning piece 40a.In addition, another second embodiment is for can be with reference to follow-up interference rib 40b shown in Figure 4.
See also Fig. 2 and shown in Figure 3 further combined with consulting, Fig. 3 is the front view of upper cover plate 34 of the present utility model.Masking structure 30 as the aforementioned, wherein, coupler construction 40 is to be two keeper 40a, and this two keeper 40a is the both sides side (promptly laying respectively at left and right side) that has the side of elastic clamping hook spare 3402 at upper cover plate 34, extends laterally and downwards and bend inwards and form.Have two on the two edge 3204E of following cover piece 32 corresponding coupler constructions 40 and interfere hole 50h, each interferes hole 50h more to comprise to stretch into a hole 5002h and a location hole 5004h, keeper 40a is inserted into to stretch into after the 5002h of hole from top to bottom, from the preceding location hole 5004h that then slips into, use the stable edge 3204E that interferes again.
Seeing also shown in Figure 4ly, is the utility model with in case the structural representation of masking structure 30 second embodiment of electromagnetic interference.This coupler construction 40 can be another kind of tactic pattern, it is to be two interference rib 40b, this two interference rib 40b is the relative side (promptly being positioned at the front limit) that has the side of elastic clamping hook spare 3402 at upper cover plate 34, and be positioned on the left and right symmetric position of described relative side, (among the figure for forward) extends and forms laterally.
Have more a location-plate 3404 between this two interference rib 40b, the edge 3204E of following cover piece 32 corresponding coupler constructions 40 (being front end edge 3204E among the figure) has two to interfere breach 60h, this two interference rib 40b interferes the below of breach 60h to be stretched into to interfere these two to interfere the remaining edge 3204E in the breach 60h outside from these two respectively, location-plate 3404 is to interfere the edge 3204E top between the breach 60h to be stretched into from these two, with the edge 3204E that interferes these two to interfere between the breach 60h.
Now collude 3802 and further specify at elasticity, wherein this elasticity collude 3802 be can self-align pin 38 terminal cover piece 32 outside inflection downwards; Perhaps, this elasticity collude 3802 be can self-align pin 38 terminal cover piece 32 inboard inflection downwards.Further, can make elasticity collude the 3802 terminal foreign object of contact easily parts again to angle 38 inflection, form slick and sly and be not easy the structure of interfering with his thing if this elasticity is colluded 3802 end.
Therefore, by the characteristic of covering of the sheet metal of masking structure 30 of the present invention, can be in electronic equipment the electromagnetic interference of electronic component on the protection circuit plate 36.Further, utilize elastic clamping hook spare 3402 elasticity to interfere snapping hole 3204h, also can after masking structure 30 be installed on the circuit board 36, can open masking structure 30 at any time and keep in repair, check, or change it and cover the electronic component that covers, follow-up and can cover back easily.In addition, utilize angle 38 and terminal elasticity thereof to collude 3802, masking structure 30 of the present utility model also can be convenient to be installed in apace on the circuit board 36, and does not need to melt scolding tin also can dismantle this masking structure 30 with breaking circuit plate 36 after installing.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. one kind with in case the masking structure of electromagnetic interference, is in order to being covered on the electronic component on the circuit board, it is characterized in that this masking structure comprises:
Once cover piece comprises a framework, certainly the outer ledge of each edge of this framework, extend a side wall respectively downwards, on one of them edge of this framework and have a snapping hole, wherein be with contiguous this circuit board of the lower edge of these side walls, so that this time cover piece is arranged on this circuit board; And
One upper cover plate, one edge of this upper cover plate extends an elastic clamping hook spare, the stage casing of this elastic clamping hook spare to lower recess to form an elastic rib, other edges of this upper cover plate have a coupler construction, interfere this snapping hole by this elastic rib elasticity, and interfere the corresponding edge of this time cover piece by this coupler construction, this upper cover plate is covered on this framework.
2. usefulness according to claim 1 is in case the masking structure of electromagnetic interference, it is characterized in that wherein said coupler construction comprises two interference rib, this two interference rib is the relative side that has the side of this elastic clamping hook spare at this upper cover plate, and, extend laterally to form in the symmetric position of described relative side.
3. usefulness according to claim 2 is in case the masking structure of electromagnetic interference, it is characterized in that having more a location-plate between wherein said two interference rib, the edge of corresponding this coupler construction of described this time cover piece has two and interferes breach, this two interference rib stretches into from the below of this two interference breach respectively to interfere this remaining edge in two interference breach outside, and this location-plate is to stretch into to interfere this edge above this two edge of interfering between breach.
4. usefulness according to claim 1 is in case the masking structure of electromagnetic interference, it is characterized in that wherein said coupler construction comprises two keepers, this two keeper is the both sides side that has the side of this elastic clamping hook spare at this upper cover plate, extend laterally and downwards and bend inwards to form, the edge of corresponding this coupler construction of described this time cover piece has two and interferes the hole, this interference hole more comprises stretches into a hole and a location hole, this keeper is after stretching into this and stretching into the hole, slip into this location hole, to interfere this edge.
5. usefulness according to claim 1 is in case the masking structure of electromagnetic interference is characterized in that wherein said cover piece down and this upper cover plate are one-body molded to make with a sheet metal respectively.
6. usefulness according to claim 1 is in case the masking structure of electromagnetic interference, it is characterized in that wherein said circuit board has at least one penetrating hole, the side wall lower edge of this time cover piece extends downward a few angle, the terminal inflection of this angle is provided with an elasticity and colludes, this angle is to pass through this penetrating hole from this circuit board top, colludes with this elasticity and interferes in this circuit board lower surface to fix this masking structure.
7. usefulness according to claim 6 is in case the masking structure of electromagnetic interference is characterized in that it is to the outside inflection of this time cover piece from this angle end that wherein said elasticity is colluded.
8. usefulness according to claim 6 is in case the masking structure of electromagnetic interference is characterized in that it is to the inboard inflection of this time cover piece from this angle end that wherein said elasticity is colluded.
9. usefulness according to claim 6 is in case the masking structure of electromagnetic interference, it is characterized in that end that wherein said elasticity colludes is further to this angle inflection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201265931U CN201078884Y (en) | 2007-09-03 | 2007-09-03 | Shield structure for preventing electromagnetic interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201265931U CN201078884Y (en) | 2007-09-03 | 2007-09-03 | Shield structure for preventing electromagnetic interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201078884Y true CN201078884Y (en) | 2008-06-25 |
Family
ID=39570948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201265931U Expired - Fee Related CN201078884Y (en) | 2007-09-03 | 2007-09-03 | Shield structure for preventing electromagnetic interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201078884Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101742895B (en) * | 2008-11-25 | 2012-04-18 | 富士康(昆山)电脑接插件有限公司 | Shielding structure of electronic device |
| JP2017228555A (en) * | 2016-06-20 | 2017-12-28 | 京セラドキュメントソリューションズ株式会社 | Shield structure and electronic apparatus |
-
2007
- 2007-09-03 CN CNU2007201265931U patent/CN201078884Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101742895B (en) * | 2008-11-25 | 2012-04-18 | 富士康(昆山)电脑接插件有限公司 | Shielding structure of electronic device |
| JP2017228555A (en) * | 2016-06-20 | 2017-12-28 | 京セラドキュメントソリューションズ株式会社 | Shield structure and electronic apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 Termination date: 20110903 |