Thermal transmitting indicator
Described is a transformer end-of-life thermal transmitting indicator (thermal transmitting indicator) that is configured and well suited for monitoring the health of a transformer and communicating the health of the transformer to an end user by way of a cellular transceiver. The thermal transmitting indicator can be configured to alert nearby people of an impending transformer explosion if the transformer fails. The thermal transmitting indicator is also arranged to transmit any problems or impending danger from the transformer to the end user who can then respond by preemptively dealing with the failing transformer. The thermal transmitting indicator comprises liquid sensors spaced in its housing to sense if water or high humidity has infiltrated the housing.
1. A liquid sensing arrangement in a thermal transmitting indicator comprising:
a housing essentially comprised of a cover and a base, the cover and base connected together to form an interior space;
a printed circuit board is entirely within the interior space, the printed circuit board is attached to the base, the printed circuit board defining an interior distance to a top surface of the cover in the interior space;
a cellular transmitter connected to the printed circuit board;
a battery power supply within the interior space;
a plurality of pillars attached to the printed circuit board, the pillars extending and terminating at a distal end to at least 50% of the interior distance;
a liquid sensor disposed at essentially the distal end of each of the pillars;
each of the liquid sensors powered by the battery power supply, the liquid sensors configured to produce information corresponding to a presence of liquid in the interior space, the information is transmitted to the cellular transmitter, the cellular transmitter capable of transmitting a wireless signal corresponding to the information to a cell hub and from the cell hub to a recipient.
2. The liquid sensing arrangement in a thermal transmitting indicator of claim 1 wherein the liquid is in a form of humidity above a predetermined threshold.
3. The liquid sensing arrangement in a thermal transmitting indicator of claim 1 wherein the liquid is essentially water that has infiltrated the interior space.
4. The liquid sensing arrangement in a thermal transmitting indicator of claim 1 wherein the pillars extending and terminating at the distal end to at least 90% of the interior distance.
5. The liquid sensing arrangement in a thermal transmitting indicator of claim 1 wherein there are four of the pillars extending from four different corners of the printed circuit board.
6. The liquid sensing arrangement in a thermal transmitting indicator of claim 1 wherein the rigid pillars are comprised of printed circuit board material with electrical leads printed on each of the pillars, the electrical leads are connected to each of the liquid sensors.
7. The liquid sensing arrangement in a thermal transmitting indicator of claim 6 wherein two of the rigid pillars are joined at either end of a central beam at the printed circuit board wherein the two rigid pillars and the central beam are a contiguous unitary structure.
8. The liquid sensing arrangement in a thermal transmitting indicator of claim 7 wherein the central beam possesses electrical lead lines connected to the electrical leads, the electrical lead lines connected to the printed circuit board thereby linking the liquid sensors to the cellular transmitter and the battery power supply.
9. The liquid sensing arrangement in a thermal transmitting indicator of claim 7 wherein there are two of the unitary structures attached on two opposing sides of the circuit board.
10. The liquid sensing arrangement in a thermal transmitting indicator of claim 7 wherein a central beam width of the central beam is less than two times a pillar width associated with one of the rigid pillars.
11. The liquid sensing arrangement in a thermal transmitting indicator of claim 1 wherein the housing is sealed to resist but not entirely to prevent water infiltration.
12. A thermal transmitting indicator comprising:
a housing defining an interior space;
a plurality of pillars each extend from a printed circuit board and terminate at a pillar distal end, the pillars and printed circuit board are confined within the interior space;
each of the pillar distal ends comprise a liquid sensor;
each of the liquid sensors are powered by a battery, the liquid sensors configured to detect if liquid is present in the interior space and if so the thermal transmitting indicator is configured to transmit a cellular signal indicative of the detected liquid to a cell hub.
13. The thermal transmitting indicator of claim 12 further comprising a cellular transmitter in the interior space.
14. The thermal transmitting indicator of claim 12 wherein the cell hub is configured to transmit the cellular signal to a recipient.
15. The thermal transmitting indicator of claim 12 wherein each of the pillars extend orthogonally from a circuit board face, which is defined as a printed circuit board surface that is larger than printed circuit board side surfaces.
16. The thermal transmitting indicator of claim 12 wherein the housing comprises a cover and a base, the plurality of pillars extending toward the cover with the pillar distal ends located closer to the cover than the base.
17. The thermal transmitting indicator of claim 12 wherein plurality of pillars are rigid.
18. A thermal transmitting indicator and liquid sensor comprising:
a plurality of liquid sensors spaced apart from a printed circuit board via corresponding pillars, each of the liquid sensors disposed essentially at a distal end of the corresponding pillar;
a housing defining an interior space, the housing comprising a base and a cover, the liquid sensors and printed circuit board are in the housing; and
a cellular transmitter in the housing, the cellular transmitter connected to the plurality of liquid sensors, the cellular transmitter configured to transmit a cellular signal indicating if at least one of the liquid sensors detects liquid in the housing.
19. The thermal transmitting indicator and liquid sensor of claim 18 wherein the liquid sensors are closer to the cover than the base.
20. The thermal transmitting indicator and liquid sensor of claim 18 wherein the thermal transmitting indicator is battery-powered.