CN2618313Y - Closed grounded elastic sheet - Google Patents
Closed grounded elastic sheet Download PDFInfo
- Publication number
- CN2618313Y CN2618313Y CNU032511566U CN03251156U CN2618313Y CN 2618313 Y CN2618313 Y CN 2618313Y CN U032511566 U CNU032511566 U CN U032511566U CN 03251156 U CN03251156 U CN 03251156U CN 2618313 Y CN2618313 Y CN 2618313Y
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- China
- Prior art keywords
- extension
- grounding elastic
- variant
- deformation
- contact site
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- 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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Abstract
The utility model relates to an enclosed earth shrapnel, which comprises a welding part and a contact part, wherein, one end of the welding part forms a horizontal S-shaped deformation part by first extending upwardly a certain distance and then inwardly; the deformation part forms a contact part after further upward extension and then extension towards the starting position of the deformation part; the contact part is further extended downwardly in the direction of the welding part to one side of the deformation part; the other end of the welding part is extended upwardly to the other side of the deformation part. When the earthed shrapnel is deformed under pressure, the deformation part is collided with the welding part and the contact part to provide protection for maximum deformation and avoid permanent deformation or breakage for going beyond the elastic deformation limitation. The utility model adopts in essence the enclosed earth shrapnel formed by continuous bending of the strip-shaped conductive materials, so that no kink occurs during arrangement, transportation, and packing, which makes the assembly more convenient.
Description
Technical field
The utility model is about a kind of closed grounding elastic part, especially a kind of circuit board grounding elastic part of putting in order, pack, transporting be convenient to.
Background technology
Be installed on the circuit board along with increasing electronic component is integrated, be derived from numerous electronic components itself and the electromagnetic interference (EMI) that comes from the outside, electrostatic interference and noise interference just becoming puzzlement people in the industry's a difficult problem.At present, the method that addresses these problems mostly is to adopt the modes such as electromagnetic shielding shell, ground strip that are provided with.
The 5th, 537, No. 294 United States Patent (USP) has promptly disclosed a kind of IC-card device with grounding elastic part and upper and lower electromagnetic shielding shell, retained part in the middle of its grounding elastic part is provided with one, be used to clamp circuit board and with circuit board on corresponding ground pad electrically contact, with two contact arms that are located at these retained part both sides, centre, on the upper and lower electromagnetic shielding shell of can conflicting respectively.Like this, after this IC-card device assembles, formed a grounded circuit between electromagnetic shielding shell, grounding elastic part and the circuit board down thereon,, static, the noise that can immediately each electronic component on the circuit board be produced conduct in time by this grounded circuit, by the upper and lower electromagnetic shielding shell of its closure designs, guaranteed the anti-electromagnetic interference that it is good simultaneously.
Grounding elastic part can be to take mechanical systems such as buckle, clamping to be set on the circuit board, also can take surface adhering mode (SMT) to be fixed on the circuit board, by with circuit board on corresponding circuit design static or noise are conducted, thereby guarantee that each electronic component on the circuit board is able to operate as normal.
The surface adhesion type grounding elastic part usually be in advance by solid welding on the position that pre-sets on the circuit board, be mounted in the computer host box with circuit board again or the notebook computer casing in, directly can contact, by the host computer shell static on the circuit board and noise be conducted again with the host computer casing.
Usually, when grounding elastic part after punch forming on the pressing equipment, must be through arrangement, arrange (being material all in one piece) on artificial means of transportation or automatic production line, and be transported to next station and carry out next step the operation on the related circuit plate of being assembled into; Also might need pack earlier, be transported to the operation that circuit board is removed to be assembled in another assembling place again through the good grounding elastic part of material all in one piece; Perhaps also need perhaps also need be packaged as specific pattern, to cooperate the operation of the manipulator on the corresponding automatic assembly line through arranging, being organized into specific direction and type of array through stamping forming grounding elastic part.
Yet, mostly there is the structure of opening, the cantilever that stretches out or barb and so in the profile of traditional grounding elastic part, related art can be with reference to No. 508135 TaiWan, China patent, the disclosed grounding elastic part of this patent roughly is " ∑ " shape, and the arm of its both sides can be used for welding with circuit board and contacting with the host computer casing.Many grounding elastic parts take place through regular meeting and intertwine in this class grounding elastic part in the material all in one piece process; not only cause the difficulty of material all in one piece process; and the grounding elastic part that intertwines each other often is easy to generate and interferes with each other; cause grounding elastic part distortion, plate surface by phenomenons such as scratch even fractures, cause production cost raising, production efficiency to reduce.
Summary of the invention
The utility model purpose is to overcome above-mentioned the deficiencies in the prior art, provide a kind of be used for circuit board, be convenient to the closed grounding elastic part putting in order, transport, pack.
Technical solution main points of the present utility model are: a kind of closed grounding elastic part is provided, and it comprises a weld part and contact site.After one end of weld part extends upward specific range, extend internally and form a variant part again; This variant part continues to extend upward the back, the prime direction towards variant part extends to form contact site again; Contact site continues to extend to variant part one side towards the weld part direction downwards; The weld part other end extends upwardly to the opposite side of variant part.
This modification portion is level " S " shape; Have two arc portions.
Be provided with between weld part and the variant part one from weld part one end make progress vertical extent, connect first extension of variant part.Be provided with between variant part and the contact site one from variant part away from an end of first extension make progress vertical extent, be connected second extension of contact site.
Contact site extends to form first abutting part towards the first extension direction downwards away from an end of second extension; Weld part upwards extends to form second abutting part towards second extension away from an end of first extension.
The free end of first, second abutting part extends to corresponding first, second extension and variant part junction respectively.The free-ended inner surface of first, second abutting part is mutually concordant with the outer surface of corresponding first, second extension respectively.
When the contact site of grounding elastic part is subjected to ambient pressure, the inner surface of first, second abutting part will along the outer surface of first, second extension of correspondence respectively downwards, parallel sliding upwards, arrive to respectively on weld part and the contact site until two arc portions of variant part.At this moment; since two arc portions of variant part respectively with the conflict effect of weld part and contact site; the protection of maximum deformation quantity can be provided; stop grounding elastic part further to be out of shape; thereby can prevent that it from the permanent deformation of strain limit taking place to surpass, and can avoid grounding elastic part that the possibility of fracture takes place.
Two arc portions of variant part of the present utility model can be the symmetrical structure designs, and grounding elastic part does not have directivity, is convenient to follow-up assembling process like this; Also can be asymmetric structural design, to satisfy the needs under the limited situation of the lateral dimension of some grounding elastic part.If two arc portions of variant part are asymmetric, when the grounding elastic part compressive deformation, a meeting in two arc portions is conflicted earlier on the contact site or weld part of correspondence, equally also can play the effect of deflection protection.
The closed grounding elastic part that the utility model essence promptly adopts banded electric conducting material to form through continuous bend, it is without any the structure of opening or the cantilever that stretches out, overhead kick and so on, therefore not having the problem that intertwines after the punch forming exists, thereby make its arrangement, transportation, packaging process convenient, can save production cost, enhance productivity.
Description of drawings
Fig. 1 is a schematic perspective view of the present utility model;
Fig. 2 is a front view of the present utility model;
Fig. 3 is an end view of the present utility model.
Embodiment
Now, the closed grounding elastic part of the utility model is described in further detail in conjunction with Figure of description.
As shown in Figure 1, the closed grounding elastic part 1 of the utility model comprises a weld part 10 and contact site 14.After one end of weld part 10 extends upward specific range, extend internally and form a variant part 12 again; This variant part 12 continues to extend upward the back, the prime direction towards variant part 12 extends to form contact site 14 again; Contact site 14 continues to extend to variant part 12 1 sides towards weld part 10 directions downwards; Weld part 10 other ends extend upwardly to the opposite side of variant part 12.
This variant part 12 is level " S " shape, and has two arc portions (17,18).
Please consult Fig. 1 and Fig. 2 simultaneously, be provided with between weld part 10 and the variant part 12 one from weld part 10 1 ends make progress vertical extent, connect first extension 11 of variant part 12.Be provided with between variant part 12 and the contact site 14 one from variant part 12 away from an end of first extension 11 make progress vertical extent, be connected second extension 13 of contact site 14.
The free end of first, second abutting part 15,16 extends to corresponding first, second extension 11,13 and variant part 12 junctions respectively.The free-ended inner surface of first, second abutting part 15,16 is mutually concordant with the outer surface of corresponding first, second extension 11,13 respectively.
When the contact site 14 of grounding elastic part 1 is subjected to ambient pressure, the inner surface of first, second abutting part 15,16 will along the outer surface of first, second extension 11,12 of correspondence respectively downwards, parallel sliding upwards, arrive to respectively on weld part 10 and the contact site 14 until two arc portions 17,18 of variant part 12.At this moment; since two arc portions 17,18 of variant part 12 respectively with the conflict effect of weld part 10 and contact site 14; the protection of maximum deformation quantity can be provided; stop grounding elastic part 1 further to be out of shape; thereby can prevent that it from the permanent deformation of strain limit taking place to surpass, and can avoid grounding elastic part 1 that the possibility of fracture takes place.
Two arc portions 17,18 of the variant part 12 of the utility model 1 can be the symmetrical structure designs, and grounding elastic part 1 does not have directivity, is convenient to follow-up assembling process like this; Also can be asymmetric structural design, to satisfy at some to the needs under the limited situation of the lateral dimension of grounding elastic part 1.If two arc portions 17,18 of variant part 12 are asymmetric, when grounding elastic part 1 compressive deformation, a meeting in two arc portions 17,18 is conflicted earlier on the weld part 10 or contact site 14 of correspondence, equally also can play the effect of deflection protection.
In addition, can also make another improvement and design to the utility model grounding elastic part 1, on first, second extension 11,13, vertically offer a microscler opening (not shown) along it respectively, and first, second abutting part 15,16 or its end then are designed to the grab shape.Like this, first, second abutting part 15,16 promptly stretches on first, second extension 11,13 in the corresponding opening.When grounding elastic part 1 compressive deformation, can in above-mentioned opening, slide; When an end slippage of first, second abutting part 15,16 corresponding opening from first, second extension 11,13 during to the other end; the protection of deflection just can be provided; stop grounding elastic part 1 further to be out of shape; thereby can prevent that it from the permanent deformation of strain limit taking place to surpass, and can avoid grounding elastic part 1 that the possibility of fracture takes place.
The closed grounding elastic part 1 that the utility model essence promptly adopts banded electric conducting material to form through continuous bend, it is without any the structure of opening or the cantilever that stretches out, overhead kick and so on, therefore not having the problem that intertwines after the punch forming exists, thereby make its arrangement, transportation, packaging process convenient, can save production cost, enhance productivity.
Claims (9)
1, a kind of closed grounding elastic part comprises a weld part (10) and contact site (14); It is characterized in that: after weld part (10) one ends extend upward specific range, extend internally and form a variant part (12) again, this variant part (12) continues to extend upward the back, the prime direction to variant part (12) extends to form contact site (14) again, contact site (14) continues to extend to variant part (12) one sides towards weld part (10) direction downwards, and the other end of weld part (10) extends upwardly to the opposite side of variant part (12).
2, closed grounding elastic part as claimed in claim 1 is characterized in that: this variant part (14) is level " S " shape.
3, closed grounding elastic part as claimed in claim 2 is characterized in that: this variant part (14) has two arc portions (17,18).
4, as claim 1 or 2 or 3 described closed grounding elastic parts, it is characterized in that: be provided with between weld part (10) and the variant part (12) one from weld part (10) one ends make progress vertical extent, connect first extension (11) of variant part (12).
5, closed grounding elastic part as claimed in claim 4 is characterized in that: be provided with between variant part (12) and the contact site (14) one from variant part (12) away from an end of first extension (11) make progress vertical extent, be connected second extension (13) of contact site (14).
6, closed grounding elastic part as claimed in claim 5 is characterized in that: contact site (14) extends to form first abutting part (15) towards first extension (11) direction downwards away from an end of second extension (13).
7, closed grounding elastic part as claimed in claim 6 is characterized in that: weld part (10) upwards extends to form second abutting part (16) towards second extension (13) away from an end of first extension (11).
8, closed grounding elastic part as claimed in claim 7 is characterized in that: the free end of first, second abutting part (15,16) extends to the junction of corresponding first, second extension (11,13) with variant part (12) respectively.
9, closed grounding elastic part as claimed in claim 8 is characterized in that: the free-ended inner surface of first, second abutting part (15,16) is mutually concordant with the outer surface of corresponding first, second extension (11,13) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032511566U CN2618313Y (en) | 2003-04-30 | 2003-04-30 | Closed grounded elastic sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032511566U CN2618313Y (en) | 2003-04-30 | 2003-04-30 | Closed grounded elastic sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2618313Y true CN2618313Y (en) | 2004-05-26 |
Family
ID=34253043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032511566U Expired - Lifetime CN2618313Y (en) | 2003-04-30 | 2003-04-30 | Closed grounded elastic sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2618313Y (en) |
-
2003
- 2003-04-30 CN CNU032511566U patent/CN2618313Y/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130502 Granted publication date: 20040526 |