Sealed flexible printed circuit connector
11114781 ยท 2021-09-07
Assignee
Inventors
- Eric B. Wankoff (San Francisco, CA, US)
- Mahmoud R. Amini (Sunnyvale, CA, US)
- Peter J. Cameron (Scotts Valley, CA, US)
Cpc classification
H01R12/88
ELECTRICITY
H01R13/5219
ELECTRICITY
H01R12/7058
ELECTRICITY
International classification
Abstract
Connectors for connecting traces on one or more flexible circuit boards to traces on a printed circuit board. These connectors can include gaskets, potting material, and other structures or materials to seal electrical connections in the connector from moisture ingress to prevent damage. The connectors can be locked to secure the one or more flexible circuit board in place in the connector. The connectors can be unlocked and then opened to remove the flexible circuit boards to remove components or to rework the electronic device.
Claims
1. A connector comprising: a plurality of contacts, each having a contacting portion at a first end; a housing having a top surface, the top surface having one or more openings, the contacting portion for each of the plurality of contacts extending through the one or more openings and above the top surface; a gasket on the top surface of the housing and laterally surrounding the one or more openings in the top surface; a shell having a first arm extending along a first side and a second arm extending along a second side, the first arm terminating in a first prong, the second arm terminating in a second prong, the first prong and the second prong near a front of the connector, the shell further comprising a first raised portion; and a cover having a first arm, the first arm having a first dimple to fit in a first detent on a first side of the housing and a second arm, the second arm having a second dimple to fit in a second detent on the second side of the housing, the cover further having a first tab to fit under the first prong of the shell when the cover is in a locked position and a second tab to fit under the second prong of the shell when the cover is in the locked position, the cover further having a first extension to fit under the first raised portion when the cover is in the locked position.
2. The connector of claim 1 wherein the housing further comprises a plurality of alignment features extending above the top surface of the housing.
3. The connector claim 2 wherein the first detent and the second detent are near a back of the housing.
4. The connector of claim 3 wherein the one or more openings in the top surface comprising a plurality of openings, wherein each contacting portion for each of the plurality of contacts extends through a corresponding opening in the plurality of openings.
5. The connector of claim 4 wherein each of the plurality of contacts further comprises a surface-mount contacting portion at a second end.
6. The connector of claim 5 wherein the gasket is located in a groove in the top surface of the housing.
7. The connector of claim 6 wherein the gasket comprises a plurality of ribs.
8. The connector of claim 1 wherein the shell further comprises a second raised portion and the cover further comprises a second extension to fit under the second raised portion when the cover is in the locked position.
9. The connector of claim 8 wherein the housing further comprises alignment features on the top surface to align a flexible circuit board when the flexible circuit board is mated with the connector.
10. A connector comprising: a plurality of contacts, each having a contacting portion at a first end; a housing having a top surface, the top surface having one or more openings, the contacting portion for each of the plurality of contacts extending through the one or more openings and above the top surface; a gasket on the top surface of the housing and laterally surrounding the one or more openings in the top surface; a shell having a first arm extending along a first side and a second arm extending along a second side, the first arm terminating in a first prong, the second arm terminating in a second prong, the shell further comprising a first raised portion; and a cover having a first arm, the first arm having a first pivot structure, and a second arm, the second arm having a second pivot structure, wherein the first pivot structure and the second pivot structure allow the cover to rotate relative to the housing, the cover further having a first tab to fit under the first prong of the shell when the cover is in a locked position and a second tab to fit under the second prong of the shell when the cover is in the locked position, the cover further having a first extension to fit under the first raised portion when the cover is in the locked position.
11. The connector of claim 10 wherein the gasket is located in a groove in the top surface of the housing.
12. The connector of claim 11 wherein the gasket comprises a plurality of ribs.
13. The connector of claim 12 wherein the first arm of the cover terminates in a first fork, the first fork comprising the first prong, a third prong, and a first slot between the first prong and the third prong, and wherein the second arm of the cover terminates in a second fork, the second fork comprising the second prong, a fourth prong, and a second slot between the second prong and the fourth prong.
14. The connector of claim 13 wherein the first pivot structure is a first dimple and the second pivot structure is a second dimple.
15. The connector of claim 14 wherein the first dimple fits in a first detent in the first side of the housing and the second dimple fits in a second detent in the second side of the housing.
16. The connector of claim 15 wherein the cover slides towards a front of the housing to move to an unlocked position, and wherein when the cover slides towards the front of the housing, the first dimple moves forward in the first detent and the second dimple moves forward in the second detent.
17. The connector of claim 10 wherein the shell further comprises a second raised portion and the cover further comprises a second extension to fit under the second raised portion when the cover is in the locked position.
18. The connector of claim 17 wherein the housing further comprises alignment features on the top surface to align a flexible circuit board when the flexible circuit board is mated with the connector.
19. A connector comprising: a first plurality of contacts, each having a contacting portion at a first end; a second plurality of contacts, each having a contacting portion at a first end; a housing having a top surface, the top surface having one or more first openings, the contacting portion for each of the first plurality of contacts extending through the one or more first openings and above the top surface, the top surface further having one or more second openings, the contacting portion for each of the second plurality of contacts extending through the one or more second openings and above the top surface; a first gasket on the top surface of the housing and laterally surrounding the one or more first openings in the top surface; a second gasket on the top surface of the housing and laterally surrounding the one or more second openings in the top surface; a shell having a first arm extending along a first side and a second arm extending along a second side, the first arm terminating in a first prong, the second arm terminating in a second prong, the first prong and the second prong near a front of the connector; and a cover having a first arm, the first arm having a first pivot structure, and a second arm, the second arm having a second pivot structure, wherein the first pivot structure and the second pivot structure allow the cover to rotate relative to the housing, the cover further having a first tab to fit under the first prong of the shell when the cover is in a locked position and a second tab to fit under the second prong of the shell when the cover is in the locked position, wherein the first pivot structure is a first dimple and the second pivot structure is a second dimple.
20. The connector of claim 19 wherein the shell further comprises a first raised portion and a second raised portion, and the cover further comprises a first extension to fit under the first raised portion and a second extension to fit under the second raised portion when the cover is in the locked position.
21. The connector of claim 19 wherein the first dimple fits in a first detent in the first side of the housing and the second dimple fits in a second detent in the second side of the housing.
22. The connector of claim 21 wherein the cover slides towards the front of the housing to move to an unlocked position.
23. The connector of claim 22 wherein when the cover slides towards the front of the housing, the first dimple moves forward in the first detent and the second dimple moves forward in the second detent.
24. The connector of claim 23 wherein the first arm of the cover terminates in a first fork, the first fork comprising the first prong, a third prong, and a first slot between the first prong and the third prong, and wherein the second arm of the cover terminates in a second fork, the second fork comprising the second prong, a fourth prong, and a second slot between the second prong and the fourth prong.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
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(19) In this example, connector 10 is shown in an open state. Connector 10 can be used to connect a flexible circuit board, such as flexible circuit board 700 (shown in
(20) Contacting portions 210 of contacts 200 can emerge from housing 100 at openings 110. Openings 110 and contacting portions 210 can be laterally surrounded by gasket 500. Gasket 500 can include one or more raised ribs 510 that can extend circumferentially along gasket 500. Ribs 510 can help to improve the moisture resistance provided by gasket 500. Housing 100 can further include one or more alignment features including alignment feature 120 and alignment feature 122. Alignment feature 120 and alignment feature 122 can aligned with cutouts 710 (shown in
(21) Shell 400 can include arms 410. Arms 410 can terminate in forks 420. Forks 420 can include slots 422 and prongs 424. That is, arms 410 can terminate in prongs 424. Cover 300 can include recessed top portion 310 and tabs 320. Cover 300 can further include arms 330, which can terminate in pivot structures, which in this particular example can be dimples 340. Dimples 340 can be located in detents 140 on each side of housing 100. Housing 100 can be supported by bottom covering 600.
(22) Tabs 320 and forks 420 can provide mechanisms for locking cover 300 to housing 100. An example is shown in the following figures.
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(25) Connector 10 can be assembled in various ways. One example is shown in the following figures.
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(27) Gasket 500 can fit in groove 130 in housing 100. Alternatively, gasket 500 can be insert molded in place on housing 100. Gasket 500 can act as a face shield and can include one or more ribs 510 on a top and bottom surface. Ribs 510 can help to improve the moisture resistance provided by gasket 500. Shell 400 can be located around a rear portion and sides of housing 100. Shell 400 can include arms 410 that terminate in forks 420. Cover 300 can include a recessed top portion 310. Recessed top portion 310 can provide a proper surface to engage flexible circuit board 700 (shown in
(28) Connectors provided by embodiments of the present invention can open to accept a flexible circuit board, and then close and lock to secure the flexible circuit board in place in the connector. Examples are shown in the following figures.
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(31) In these and other embodiments of the present invention, gaskets 500 can improve the moisture resistance of connector 10. In these and other embodiments of the present invention, other steps, such as potting, can be used to further improve moisture resistance of connector 10. An example is shown in the following figure.
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(34) The various possible moisture ingress paths for a connector according to an embodiment of the present invention can be protected in various ways. Examples are shown in the following figure.
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(36) A first ingress path 861 between housing 230 and housing 100 can be blocked by potting material 800. A second ingress path 871 between housing 100 and bottom cover 600 can be blocked by adhesive or other material (not shown). This adhesive can be a die-cut adhesive. Alternatively, ultrasonic welding, laser welding, or other technique can be used to join housing 100 to bottom cover 600. A third ingress path 881 between housing 100 and flexible circuit board 700 can be blocked by gasket 500, including ribs 510. In this way, contacts 200 can be protected from moisture that can be located inside an electronic device (not shown) housing connector 10.
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(39) Again, in these and other embodiments the present invention, a cover can be locked relative to a housing using a tab that can fit in a slot in a fork of a shell. Alternatively, the fork can be replaced with a single prong, under which the tab can fit when the cover is locked. The tab can have various shapes, and these shapes can be varied to adjust a hold force provided by the tabs, where the hold force keeps the cover locked in place against the housing.
(40) Also, these connectors, and the electronic devices (not shown) that house them, can be dropped or otherwise subjected to a fall. Such as fall can exert a force in an upward direction on a locked cover. It can be desirable that this upward force be insufficient to open the connector. By changing these tabs, the force necessary to inadvertently open the connector can be increased. Examples are shown in the following figures.
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(43) These and other embodiments of the present invention can provide variations of connector 10 (shown in
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(45) Connector 30 can provide improved grounding. For example, arms 8410 of shell 8400 can include tabs 8428. Tabs 8428 can be soldered to pads or contacts (not shown) on a top surface of printed circuit board 810 (shown in
(46) In this and other embodiments of the present invention, a front edge 790 of flexible circuit board 700 can fit under shell 8400. This can help to retain flexible circuit board 700 in place when a connection using connector 30 is made. That is, fitting front edge 790 of flexible circuit board 700 under shell 8400 can help to secure flexible circuit board 700 in place as cover 8300 is closed and then locked. Extensions 8370 of cover 8300 can fit under raised portions 8470 of shell 8400. This can help to secure cover 8300 in place relative to housing 8100.
(47) Inserting extensions 8370 under raised portions 8470 can increase a force applied by cover 8300 to flexible circuit board 700. This can also more evenly distribute a force applied by cover 8300 to an interface between flexible circuit board 700 and gasket 8500. This in turn can further improve the moisture resistance of connector 30.
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(49) In these and other embodiments of the present invention, it can be desirable to connect multiple flexible circuit boards to a printed circuit board. An example of such a connector is shown in the following figures.
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(53) In these and other embodiments of the present invention, contacts, shells, covers, and other conductive portions of a connector can be formed by stamping, metal-injection molding, machining, micro-machining, 3-D printing, forging, drawing, or other manufacturing process. The conductive portions can be formed of stainless steel, steel, copper, copper titanium, phosphor bronze, or other material or combination of materials. They can be plated or coated with nickel, gold, or other material. The nonconductive portions, such as the housings, can be formed using injection or other molding, 3-D printing, machining, or other manufacturing process. The nonconductive portions can be formed of silicon or silicone, rubber, hard rubber, plastic, nylon, liquid-crystal polymers (LCPs), or other nonconductive material or combination of materials.
(54) These and other embodiments of the present invention can provide connectors that can be located in various types of devices, such as portable computing devices, tablet computers, desktop computers, laptops, all-in-one computers, cell phones, wearable-computing devices, storage devices, portable media players, navigation systems, monitors, power supplies, adapters, remote control devices, audio devices, chargers, and other devices. These connectors can provide pathways for signals that are compliant with various standards such as Universal Serial Bus (USB), a High-Definition Multimedia Interface (HDMI), Digital Visual Interface (DVI), power, Ethernet, DisplayPort, Thunderbolt, Lightning and other types of standard and non-standard interfaces that have been developed, are being developed, or will be developed in the future.
(55) The above description of embodiments of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form described, and many modifications and variations are possible in light of the teaching above. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications to thereby enable others skilled in the art to best utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. Thus, it will be appreciated that the invention is intended to cover all modifications and equivalents within the scope of the following claims.