WO1997041716B1 - Surface-mounted attachment means and use thereof - Google Patents
Surface-mounted attachment means and use thereofInfo
- Publication number
- WO1997041716B1 WO1997041716B1 PCT/FI1997/000248 FI9700248W WO9741716B1 WO 1997041716 B1 WO1997041716 B1 WO 1997041716B1 FI 9700248 W FI9700248 W FI 9700248W WO 9741716 B1 WO9741716 B1 WO 9741716B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- attachment
- attachment means
- groove part
- joining surface
- plane defined
- Prior art date
Links
- 230000000875 corresponding Effects 0.000 claims abstract 5
- 230000005489 elastic deformation Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
Abstract
A surface-mounted attachment means (10) having a contact part (11) for the seizing head of an insertion machine for surface-mounted components, a joining surface (13) for attachment to a printed circuit board, and a preformed point of attachment, which may be a groove (16; 26) or protrusion (21), is used for attaching an EMC shield (18) and other mechanical components to a printed circuit board (14) and for attaching the printed circuit board to other mechanical parts. The EMC shield has an elastic side wall (19) and, therein, a corresponding preformed part (20) which, during installation, is pushed by a spring force caused by the elastic side wall against a locking groove or protrusion in the attachment means and holds the EMC shield in its place. Other mechanical attachments (23), too, can be implemented by means of a similar attachment means.
Claims
1. Attachment means (10) for mechanically attaching a component ( 18; 23) to a printed circuit board (14), which attachment means comprises a joining surface (13) for adhering to the surface of the printed circuit board, characterized in that - it also comprises
- a contact part (11) for creating a temporary attachment between said attachment means and a seizing head (12) intended to move it, and
- a preformed point of attachment (16; 21 ; 26) for creating a mechanical attachment between said attachment means and said component; and - it does not consist of a bended sheet.
2. The attachment means of claim 1, characterized in that said joining surface is planar and said contact part is a planar contact surface (1 1) parallel to said joining surface (13).
3. The attachment means of claim 2, characterized in that said preformed point of attachment (16; 21; 26) is located between the plane defined by said joining surface and the plane defined by said contact surface.
4. The attachment means of claim 3, characterized in that said preformed point of attachment is a locking groove (16; 26) for creating a mechanical attachment between said attachment means and said component when said locking groove and a corresponding locking protrusion (20) in said component are placed against each other.
5. The attachment means of claim 4, characterized in that said locking groove comprises a first groove part (16; 16a) and a second groove part (16; 16a) which are located on opposing sides of the cross section of said attachment means.
6. The attachment means of claim 5, characterized in that the perpendicular distance of said first groove part from the plane defined by said joining surface equals the perpendicular distance of said second groove part from the plane defined by said joining surface.
7. The attachment means of claim 5, characterized in that the perpendicular distance of said first groove part (16d) from the plane defined by said joining surface is unequal to the perpendicular distance of said second groove part (16e) from the plane defined by said joining surface.
AMENDED SHEET (ARTfCLE 19)
8. The attachment means of claim 5, characterized in that it further comprises a third groove part (16b) and a fourth groove part (16b), said third groove part being located on the same side as said first groove part in such a manner that the perpendicular distance of said first groove part from the plane defined by said joining surface is unequal to the perpendicular distance of said third groove part from the plane defined by said joining surface, and said fourth groove part being located on the same side as said second groove part in such a manner that the perpendicular distance of said second groove part from the plane defined by said joining surface is unequal to the perpendicular distance of said fourth groove part from the plane defined by said joining surface.
9. The attachment means of claim 4, characterized in that said locking groove (26) or groove part comprises a locking hollow (27) which in the cross section of the attachment means is shaped like J in such a manner that the stem of the J is perpendicular to the projection of said joining surface, the curving end of the J points away from the projection of said joining surface and the point of the curving end of the J points away from the centre axis of the cross section of the attachment means, said centre axis being perpendicular to the projection of said joining surface.
10. The attachment means of claim 3, characterized in that said preformed point of attachment is an attachment protrusion (21) for creating a mechanical attachment between said attachment means and said component when said attachment pro¬ trusion and a corresponding locking groove (22) in said component are placed against one another.
1 1. The attachment means of claim 1, characterized in that it has an elliptic cross section.
12. The attachment means of claim 1 , characterized in that it has a hexagonal cross section.
13. An EMC shield (18) attached to a printed circuit board, comprising a planar cover and as part of it, at least one side wall (19), characterized in that said side wall is made elastic and comprises a preformed point of attachment (20; 22; 25) for creating a mechanical attachment between said EMC shield and attachment means fixed to the printed circuit board when said point of attachment and a corresponding preformed point (16; 21 ; 26) in said attachment means are placed against one another in a position which causes an elastic deformation in said side wall and thus a spring force pushing said point of attachment and said attachment means against each other.
14. The EMC shield of claim 13, characterized in that said point of attachment is an attachment protrusion (20; 25) for creating a mechanical attachment between said attachment means and said EMC shield when said attachment protrusion and a corresponding locking groove in said attachment means are placed against each other.
15. The EMC shield of claim 14, characterized in that said side wall comprises a first branch (19a; 24) and a second branch (19b; 24), both branches comprising an attachment protrusion so that the attachment protrusion of said first branch points towards said second branch and the attachment protrusion of said second branch points towards said first branch to create a mechanical attachment between said attachment means and said EMC shield when said first branch and second branch are placed on the opposite sides of said attachment means.
16. The EMC shield of claim 15, characterized in that at least one branch of said side wall further comprises, as part of said attachment protrusion, a locking tongue
(25) which points substantially away from the direction which is the intended main direction of the mounting movement of said EMC shield when the EMC shield is being installed to the printed circuit board by means of said attachment means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU23899/97A AU2389997A (en) | 1996-04-26 | 1997-04-25 | Surface-mounted attachment means and use thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI961798A FI961798A (en) | 1996-04-26 | 1996-04-26 | Surface-mountable stackable fasteners and corresponding EMC protection |
| FI961798 | 1996-04-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1997041716A1 WO1997041716A1 (en) | 1997-11-06 |
| WO1997041716B1 true WO1997041716B1 (en) | 1997-12-31 |
Family
ID=8545919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FI1997/000248 WO1997041716A1 (en) | 1996-04-26 | 1997-04-25 | Surface-mounted attachment means and use thereof |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2389997A (en) |
| FI (1) | FI961798A (en) |
| WO (1) | WO1997041716A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6255581B1 (en) * | 1998-03-31 | 2001-07-03 | Gore Enterprise Holdings, Inc. | Surface mount technology compatible EMI gasket and a method of installing an EMI gasket on a ground trace |
| EP1729201A1 (en) * | 2005-06-03 | 2006-12-06 | Thomson Licensing | Shielding means |
| CN103619087A (en) * | 2013-10-29 | 2014-03-05 | 美的集团股份有限公司 | A method for arranging an EMC module in an electromagnetic heating device with a coil and an electromagnetic heating device |
| GB2559195A (en) * | 2017-01-31 | 2018-08-01 | Continental Automotive Gmbh | Connector arrangement for a sensor mounted on a vehicle |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4754101A (en) * | 1986-10-23 | 1988-06-28 | Instrument Specialties Co., Inc. | Electromagnetic shield for printed circuit board |
| US4890199A (en) * | 1988-11-04 | 1989-12-26 | Motorola, Inc. | Miniature shield with opposing cantilever spring fingers |
| US5014160A (en) * | 1989-07-05 | 1991-05-07 | Digital Equipment Corporation | EMI/RFI shielding method and apparatus |
| JP2501638Y2 (en) * | 1991-11-25 | 1996-06-19 | 船井電機株式会社 | Shield board for PCB mounting |
| JPH0590693U (en) * | 1992-04-27 | 1993-12-10 | 株式会社東芝 | Electromagnetic shielding structure of magnetic disk device |
| WO1994019874A1 (en) * | 1993-02-26 | 1994-09-01 | Motorola Inc. | Radio frequency shielding method and apparatus |
| US5354951A (en) * | 1993-03-15 | 1994-10-11 | Leader Tech, Inc. | Circuit board component shielding enclosure and assembly |
| SE503484C2 (en) * | 1994-04-11 | 1996-06-24 | Ericsson Telefon Ab L M | CAT'S WHISKER |
-
1996
- 1996-04-26 FI FI961798A patent/FI961798A/en unknown
-
1997
- 1997-04-25 AU AU23899/97A patent/AU2389997A/en not_active Abandoned
- 1997-04-25 WO PCT/FI1997/000248 patent/WO1997041716A1/en active Application Filing
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