Liquid and connection detection
Connector receptacles and connector receptacle interfaces that can detect a connection to a corresponding connector insert, can detect liquid in the connector receptacle, and can limit damage to the connector receptacle caused by the liquid.
1 . A connector receptacle comprising:
a housing having a passage;
a tongue located in the passage;
a first plurality of contacts on a top side of the tongue;
a second plurality of contacts on a bottom side of the tongue;
a first opening in a first side of the passage;
a first side ground contact positioned in the first opening in the passage, the first side ground contact having a contacting portion;
a second opening in the passage; and
a first connection-detect contact positioned in the second opening in the passage, the first connection-detect contact having a contacting portion positioned further from a front of the connector receptacle than the contacting portion of the first side ground contact.
2 . The connector receptacle of claim 1 wherein the second opening is in a second side of the passage, the second side opposite the first side.
3 . The connector receptacle of claim 1 wherein the first connection-detect contact comprises a bend to increase a beam length of the first connection-detect contact.
4 . The connector receptacle of claim 1 wherein the second opening is in a bottom of the passage, the bottom of the passage below the tongue.
5 . The connector receptacle of claim 4 further comprising a second side ground contact in a third opening and a second connection-detect contact in a fourth opening.
6 . The connector receptacle of claim 1 further comprising a first tab along a portion of an outside edge of the first side ground contact and a second tab along a portion of an outside edge of the first connection-detect contact.
7 . The connector receptacle of claim 6 wherein the first tab and the second tab are formed of plastic.
8 . A connector receptacle comprising:
a housing having a passage;
a tongue located in the passage;
a first plurality of power and data contacts on a top side of the tongue;
a second plurality of power and data contacts on a bottom side of the tongue;
a first liquid-detect contact on the top side of the tongue; and
a second liquid-detect contact on the bottom side of the tongue.
9 . The connector receptacle of claim 8 further comprising a first plurality of trenches, each between adjacent power and data contacts on the top side of the tongue and a second plurality of trenches, each between adjacent power and data contacts on the bottom side of the tongue.
10 . The connector receptacle of claim 8 further comprising:
a hydrophobic coating on the top side of the tongue near a front edge of the tongue and a hydrophilic coating on the top side of the tongue near the first liquid-detect contact.
11 . The connector receptacle of claim 8 wherein at least one of the first plurality of power and data contacts is routed around the first liquid-detect contact.
12 . The connector receptacle of claim 11 wherein the first liquid-detect contact and the second liquid-detect contact are coupled to an Electrochemical-Impedance Spectroscopy circuit.
13 . The connector receptacle of claim 11 further comprising a connection-detect contact.
14 . The connector receptacle of claim 13 wherein the connection-detect contact is positioned in a side opening in the passage.
15 . The connector receptacle of claim 14 further comprising a third liquid-detect contact on the top side of the tongue and a fourth liquid-detect contact on the bottom side of the tongue, wherein the first liquid-detect contact, the second liquid-detect contact, the third liquid-detect contact, and the fourth liquid-detect contact are connected to a liquid-detect contact plate, wherein the liquid-detect contact plate terminates in a single contact.
16 . A connector receptacle comprising:
a tongue;
a ground pad on a top side of the tongue;
a first plurality of contacts on the top side of the tongue, the first plurality of contacts including a first contact extending a first length from the ground pad to a front edge of the tongue and a second contact extending a second length from the ground pad to the front edge of the tongue; and
a liquid-detect contact between the first contact and the second contact and extending a third length from the ground pad to the front edge of the tongue, where the first length and the second length are longer than the third length.
17 . The connector receptacle of claim 16 wherein the first contact includes a first angled portion such that the first contact angles around the liquid-detect contact.
18 . The connector receptacle of claim 17 wherein the second contact includes a second angled portion such that the second contact angles around the liquid-detect contact.
19 . The connector receptacle of claim 18 wherein the first contact comprises a VBUS contact and the second contact comprises a CC contact for a Universal Serial Bus Type-C connector receptacle.