RFID-enabled electrical connector
The present invention is an RFID-enabled electrical connector with connector position assurance (“CPA”) features, comprised of an electrical connector having a plug, a socket, and a CPA feature; a strategically located electrically conductive material, such as a conductive polymer or metalized plastic; and an RFID tag. The present invention can be fabricated using a standard RFID tag, or a mini-RFID tag that has no antenna. The lack of antenna gives the mini-RFID tag an effective transmission distance of less than 25 mm. In the illustrated embodiments, until the CPA feature has been fully deployed, the RFID tag or mini-RFID tag cannot be read because of the strategic placement of the electrically conductive material. The RFID tag can only be properly read after the CPA feature has been fully deployed.
1. An RFID-enabled electrical connector comprised of
a socket having a housing with a deployable connector position assurance (“CPA”) feature;
a plug; and
a mini-RFID tag;
wherein the mini-RFID tag has no antenna, giving it an effective transmission range of less than 25 mm;
wherein the CPA feature is comprised of a secondary lock that cannot be engaged until the connector is fully seated by properly inserting the plug into the socket; and
wherein a strategically located electrically conductive material acts as an antenna for the mini-RFID tag, extending the effective transmission range of the mini-RFID tag so that it can be read by an RFID reader, when the secondary lock of the CPA feature has been properly engaged.
2. The RFID-enabled electrical connector of claim 1 , wherein the mini-RFID tag is passive, meaning that the mini-RFID tag has no independent power source and the mini-RFID tag relies on the field generated by an RFID reader in order to be energized.
3. The RFID-enabled electrical connector of claim 2 , wherein, when the CPA features have not been properly deployed, the mini-RFID tag cannot be read by the RFID reader because the effective transmission range of the mini-RFID tag is insufficient to reach the RFID reader.
4. The RFID-enabled electrical connector of claim 3 , further comprising a connector housing, connected to the plug, and wherein the connector housing is capable of being inserted into the socket in such a way as to fully deploy all of the CPA features and creating an electrical connection between the plug and the socket.
5. The RFID-enabled electrical connector of claim 4 ,
wherein the mini-RFID tag is affixed to the connector housing; and
wherein the socket housing has a strategically located electrically conductive material region, acting as an antenna for the mini-RFID tag when the CPA features have been properly deployed.
6. The RFID-enabled electrical connector of claim 5 , wherein the mini-RFID tag is partially embedded in the connector housing.
7. The RFID-enabled electrical connector of claim 6 , wherein, when the connector housing has been fully inserted into the socket, the mini-RFID tag is within the socket housing.
8. The RFID-enabled electrical connector of claim 7 , wherein one of the CPA features is a latch that is enabled when the connector housing is fully inserted into the socket.
9. The RFID-enabled electrical connector of claim 8 , wherein, after being enabled, depressing the latch will engage a secondary lock, positionally locking the socket and connector housing relative to one another.
10. The RFID-enabled electrical connector of claim 9 , wherein the electrically conductive material is an electrically conductive polymer.
11. The RFID-enabled electrical connector of claim 9 , wherein the electrically conductive material is a region of metallized plastic.
12. The RFID-enabled electrical connector of claim 11 , wherein the region of metallized plastic is accomplished by using a metal insert when molding the connector.
13. The RFID-enabled electrical connector of claim 12 , wherein the metal insert is stamped copper.
14. The RFID-enabled electrical connector of claim 3 , further comprising a connector housing, connected to the plug, and wherein the socket is capable of being inserted into the connector housing in such a way as to fully deploy all of the CPA features and creating an electrical connection between the plug and the socket.
15. The RFID-enabled electrical connector of claim 14 ,
wherein the mini-RFID tag is affixed to the socket;
wherein the connector housing has a strategically located electrically conductive material region;
wherein the mini-RFID tag cannot be read from an RFID reader when the CPA features have not been properly deployed, because the RFID reader cannot be brought within the effective transmission range of the mini-RFID tag; and
wherein, when a latch is engaged, deploying a secondary lock, the strategically located electrically conductive material region is aligned with the mini-RFID tag and acts as an antenna for the mini-RFID tag.
16. The RFID-enabled electrical connector of claim 15 , wherein the mini-RFID tag is partially embedded in the socket.
17. The RFID-enabled electrical connector of claim 15 , wherein the electrically conductive material is an electrically conductive polymer.
18. The RFID-enabled electrical connector of claim 15 , wherein the electrically conductive material is a region of metallized plastic.
19. The RFID-enabled electrical connector of claim 18 , wherein the region of metallized plastic is accomplished by using a metal insert when molding the connector.
20. The RFID-enabled electrical connector of claim 19 , wherein the metal insert is stamped copper.
21. A method of assuring the proper connection of an RFID-enabled electrical connector comprising the steps of
identifying a socket with CPA features and a socket housing having a strategically located region of electrically conductive material;
inserting a connector housing with an affixed mini-RFID tag and an attached plug into the socket;
being unable to read the mini-RFID tag using an RFID reader, prior to deploying the CPA features of the socket;
pushing the connector housing into the socket until a latch, one of the CPA features of the socket, is enabled;
depressing the latch to positionally lock the connector housing relative to the socket;
aligning the strategically located region of electrically conductive material so that it acts as an antenna to the mini-RFID tag when the latch is depressed; and
increasing the effective transmission range of the mini-RFID tag by using the antenna so that an RFID reader can be positioned to read the mini-RFID tag embedded in the connector housing.
22. A method of assuring the proper connection of an RFID-enabled electrical connector comprising the steps of
identifying a connector housing, having a strategically located region of electrically conductive material;
inserting a socket with an affixed mini-RFID tag into the connector housing;
being unable to read the mini-RFID tag using an RFID reader, prior to deploying the CPA features of the socket;
pushing the socket into the connector housing until a latch, a CPA feature of the socket, is enabled;
depressing the latch to correctly position the connector housing relative to the socket and thereby aligning the strategically located region of electrically conductive material so that it acts as an antenna to the mini-RFID tag; and
reading the mini-RFID tag embedded in the connector housing.