Patent Publication Number: US-2023161395-A1

Title: Sealed Enclosure Power Control System

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     The present application is a continuation of U.S. application Ser. No. 17/130,652 filed on Dec. 22, 2020 which issues as U.S. Pat. No. 11,550,378 on Jan. 10, 2023 (Docket No. JORG-035), which claims priority to U.S. Provisional Application No. 62/955,382 filed Dec. 30, 2019 (Docket No. JORG-028). Each of the aforementioned patent applications is herein incorporated by reference in their entirety. 
    
    
     STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT 
     Not applicable to this application. 
     BACKGROUND 
     Field 
     Example embodiments in general relate to a sealed enclosure power control system that allows for different properties to be sensed, with an environmentally sealed and configurable unit. 
     Related Art 
     Any discussion of the related art throughout the specification should in no way be considered as an admission that such related art is widely known or forms part of common general knowledge in the field. 
     Wireless sensors within sealed enclosures are used throughout commercial, industrial, medical, and military applications. In current designs, a different sensor (and enclosure) needs to be used in the event a new sensing function is to be monitored. For example, in existing wireless designs, a battery powered temperature sensor cannot be easily reconfigured to be a vehicle powered humidity sensor without major modification. To monitor a new parameter, a different wireless sensor in its own sealed enclosure must be implemented. 
     In many applications, having the electronics of the wireless sensor encased in a sealed enclosure is desired. Having a sealed case prohibits dust, debris, moisture, or other contaminants from contacting sensitive circuits, components, or connectors that may compromise the reliability or longevity of the sensor. 
     However, completely sealing the electronics can present problems. Not being able to access the electronics hinders the ability to change the functionality of the system or the wireless sensor. If the system is completely sealed, then simple features (such as an on/off switch) are complicated, as the switch must be completely sealed through its full range of motion and across all extremes of environmental conditions. An ideal scenario allows ease of functionality change and to turn on/turn off the device without compromising the hermetic seal of the enclosure. 
     SUMMARY 
     An example embodiment is directed to a sealed enclosure power control system. The sealed enclosure power control system includes an electrical component within a sealed enclosure, a first connector on the sealed enclosure adapted to provide a sealed electrical interface to the electrical component, the first connector comprising at least one first connector conductor element, and a battery within the sealed enclosure, the battery being electrically coupled to the at least one first connector conductor element. 
     The system also comprises a second connector, the second connector adapted to be removably connected to the first connector, the second connector comprising at least one second connector conductor element corresponding to the at least one first connector conductor element, wherein when the first connector and the second connector are connected together, an electrical power from the battery is applied to the electrical component and wherein when the first connector and the second connector are not connected together, the electrical power is not applied to the electrical component. 
     In some example embodiments, the electrical power is applied from the battery to a first conductor element of the first connector, and is further routed through a first conductor element of the second connector to a second conductor element of the second connector such that the electrical power is applied to a corresponding second conductor element of the first connector. However, the electrical power may be applied or routed through other means. As just one possible example, a conductor element of the first connector may have two separate leads, such that when a pin-type conductor element of the second connector is inserted, the two leads of the conductor element of the first connector are connected together. This type of conductor element may be similar to a multi-element component like those used where multiple electrical connections are made using a single pin or plug with multiple conductors (e.g., ring and tip). In such embodiments, the first connector comprises a means for applying the electrical power from the battery to the electrical component when the first connector and the second connector are connected together. 
     In some example embodiments, the first connector comprises a plurality of conductor elements, and the second connector comprises a plurality of conductor elements that typically correspond to the elements of the first connector. It is possible for at least one of the plurality of conductor elements of the first connector to be usable to identify a type of sensor that provides a signal to the electrical component via the second connector and the first connector. It is also possible for multiple conductor elements to identify the type of sensor that is used, such that many sensor types can be used with the system without modification to any circuitry or component within the sealed enclosure. Further, at least one of the plurality of conductor elements of the first connector can receive a signal from a sensor that is connected to the second connector, and the signal may be provided to the electrical component. 
     The electrical component within the sealed enclosure may comprise a microprocessor and a non-transitory computer readable recordable medium containing one or more programs executable by the microprocessor which when executed implement the steps of: 1) receiving the identification of the type of sensor that is coupled to the second connector; 2) receiving a signal from a sensor that is coupled to the second connector; and 3) transmitting the sensor type and a data value that represents the signal to an external receiver. Further, in such an example system, the one or more programs when executed may further implement the step of determining the data value from the signal from the sensor based on the sensor type. The electrical power can be provided to the microprocessor and the non-transitory computer readable recordable medium when the first connector and the second connector are connected together. 
     A method of using the power control system may also be performed, comprising the steps of: 1) providing the electrical power to the electrical component by connecting the first connector to the second connector; 2) providing a signal from a sensor having a sensor type to the first connector via the second connector; 3) generating, in the electrical component, a data value corresponding to the signal; and 4) transmitting the data value to an external receiver. In carrying out the foregoing method, generating the data value may comprise using a sensor type determined by an address value on at least one second connector conductor element, or on a plurality of conductor elements. 
     The sensor may be coupled to the second connector such that the signal from the sensor is provided to the first connector from the second connector when the first connector and the second connector are connected together. In carrying out the method, the electrical power can be applied from the battery to a first conductor element of the first connector, and is further routed through a first conductor element of the second connector to a second conductor element of the second connector, such that the electrical power is applied to a corresponding second conductor element of the first connector. 
     There has thus been outlined, rather broadly, some of the embodiments of the sealed enclosure power control system in order that the detailed description thereof may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional embodiments of the sealed enclosure power control system that will be described hereinafter and that will form the subject matter of the claims appended hereto. In this respect, before explaining at least one embodiment of the sealed enclosure power control system in detail, it is to be understood that the sealed enclosure power control system is not limited in its application to the details of construction or to the arrangements of the components set forth in the following description or illustrated in the drawings. The sealed enclosure power control system is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of the description and should not be regarded as limiting. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Example embodiments will become more fully understood from the detailed description given herein below and the accompanying drawings, wherein like elements are represented by like reference characters, which are given by way of illustration only and thus are not limitative of the example embodiments herein. 
         FIG.  1    is a perspective view of a sealed enclosure in accordance with an example embodiment of a sealed enclosure power control system. 
         FIG.  2    is a sensor assembly usable with a sealed enclosure power control system in accordance with an example embodiment. 
         FIG.  3    is a partially exploded view of a sealed enclosure power control system in accordance with an example embodiment. 
         FIG.  4    is a cutaway view of a sealed enclosure in accordance with an example embodiment. 
         FIG.  5    is a block diagram of a sealed enclosure power control system in accordance with an example embodiment. 
         FIG.  6    is a block diagram of a sealed enclosure power control system in accordance with an alternative example embodiment. 
         FIG.  7    is a block diagram of an electrical component that would typically be within a sealed enclosure power control system in accordance with an example embodiment. 
     
    
    
     A. Overview. 
     An example sealed enclosure power control system  100  generally includes an electrical component  140  within a sealed enclosure  101 , a first connector  110  on the sealed enclosure  101  adapted to provide a sealed electrical interface to the electrical component  140  within the enclosure  101 . 
     The first connector  110  will typically have at least one first connector conductor element  112 , and may have multiple conductor elements, the function of which will be described in detail herein. The first connector  110  is attached to the sealed enclosure  101  so that the first connector conductor element(s)  112  are externally exposed from the sealed enclosure  101  as shown in  FIG.  1    of the drawings. The system also includes a battery  150  within the sealed enclosure  101 , the battery  150  being electrically coupled to the at least one first connector conductor element  112 . 
     The system may also include a second connector  120 , the second connector  120  adapted to be removably connected to the first connector  110 , and like the first connector  110 , the second connector  120  will typically include at least one second connector conductor element  122 , and usually will include a plurality of conductor elements  122 . The conductor elements  112  and  122  may either be male or female types (e.g., pins or sockets), interchangeably. In addition, each or any conductor element  112 ,  122  may have or comprise multiple connections. For example, as with a multi-conductor audio plug, a female socket on first connector  110  may have multiple, electrically isolated contact points, such that a circuit or connection between the two points is completed when a pin from second connector  120  is mated with it. 
     Each conductor element  122  of the second connector corresponds to a similar, mating element  112  of the first connector  110 , such that when the first connector  110  and the second connector  120  are connected together, each corresponding conductor is conductively coupled to a corresponding conductor in its mating connector. Further, electrical power from the battery  150  is in some example embodiments, applied to the electrical component  140  when the first connector  110  and the second connector  120  are connected together, and the electrical power is removed when the first connector  110  and the second connector  120  are not connected together. In such cases, the conductive path may be completed by a connection between two conductor elements  122  on the second connector  120 , or otherwise within a sensor assembly  130 —the only requirement being that one element is connected electrically to another when the two connectors  110 ,  120  are connected together. 
     The electrical power in such an embodiment can be applied from the battery to a first conductor element  112  of the first connector  110 , and is further routed through a corresponding first conductor element  122  of the second connector  120  to a second conductor element  122  of the second connector such that the electrical power is applied to a corresponding second conductor element of the first connector. In simplified terms, there may be a particular conductor element on the first connector  110  that has no power when the second connector  120  is not connected to the first connector  120 . Then, when the second connector  120  is connected to the first connector  110 , power is routed through a connection between conductor elements on the second connector  120  to apply power to the particular conductor element. The electrical power is thus provided to electrical component  140 , and any other associated, optional, or desired circuitry or components within the sealed enclosure  101 . 
     Notably, the electrical power may also be applied or routed to electrical component  140  through other means. As just one possible example, a conductor element  112  of the first connector  110  may have two separate leads, such that when a pin-type conductor element  122  of the second connector  120  is inserted, the two leads of the conductor element  112  of the first connector  110  are connected together. This type of conductor element may be similar to a multi-element component like those used where multiple electrical connections are made using a single pin or plug with multiple conductors (e.g., “ring and tip”). In such embodiments, the first connector  110  comprises a means for applying the electrical power from the battery  150  to the electrical component  140  when the first connector  110  and the second connector  120  are connected together. 
     In some example embodiments, the first connector  110  comprises a plurality of conductor elements  112 , and the second connector  120  also comprises a plurality of conductor elements  122  that typically correspond to the elements of the first connector  110 , as described above. It is possible for at least one of the plurality of conductor elements of the first connector  110  to be usable to identify a type of sensor  132  that provides a signal to the electrical component  140  via the second connector  120  and the first connector  110 . It is also possible for multiple conductor elements  112  to carry signals used to identify or signify the type of sensor  132  that is used or connected to the sealed enclosure  101 , such that many different sensor types can be used with the system  100  without modification to any circuitry or component within the sealed enclosure  101 . Further, at least one of the plurality of conductor elements  112  of the first connector  110  can receive a signal from a sensor  132  that is connected to the second connector  120 , and the signal may be provided to the electrical component  140 . The sensor  132  may be a simple sensor, such as a thermocouple, or it may be any other type, such as a more complex transducer that requires a power input, which may be provided from the electrical component  140  through an electrical interface, such as the interface from the first connector to the second connector. 
     The electrical component  140  within the sealed enclosure  101  may comprise a microprocessor  141  and a non-transitory computer readable recordable medium  143  containing one or more programs executable by the microprocessor  141  which when executed implement the steps of: 1) receiving the identification of the type of sensor that is coupled to the second connector; 2) receiving a signal from a sensor that is coupled to the second connector; and 3) transmitting the sensor type and a data value that represents the signal to an external receiver  160 , via receiving antenna  162 . Further, in such an example system, the one or more programs when executed may further implement the step of determining the data value from the signal from the sensor  132  based on the sensor type. The electrical power can be provided to the microprocessor  141  and the non-transitory computer readable recordable medium  143  when the first connector  110  and the second connector  120  are connected together. 
     The microprocessor  141  may provide data and/or signals to antenna  145  such that a communication link  147  may carry data representative of a value from the sensor  132  to an external receiver  160 . The format of such a signal may be any typical format, such as WiFi, Bluetooth, or any proprietary or usable communications format. 
     B. Sealed Enclosure. 
     In many applications, having the electronics of a wireless sensor system encased in a sealed enclosure, such as enclosure  101 , is desired. Such an enclosure  101  is shown, for example, in  FIGS.  1 ,  3 , and  4   , as well as depicted in block form in  FIGS.  5  and  6   . In this case, a wireless sensor system simply refers to a sensor system that is not necessarily connected to the ultimate destination of a transducer or sensor signal by a wire. For example, as shown in  FIG.  5   , the enclosure  101  is remote from, and not connected by wire, to a remote, external receiver  160 . The sealed enclosure  101  may have various shapes and dimensions along with one or more interior spaces. 
     Wireless sensors are used throughout commercial, industrial, medical, and military applications. In current designs, entirely separate sensor systems are needed whenever a new environmental parameter is to be monitored. For example, in some existing wireless designs, a battery powered temperature sensor system cannot be easily reconfigured to be a vehicle-powered humidity sensor system without major modification. Thus, having a sealed case prohibits dust, debris, moisture, or other contaminants from contacting sensitive circuits, components, or connectors that may compromise the reliability or longevity of the sensor system, but may make changing configurations difficult. 
     The sealed enclosure  101 , by itself, eliminates the environmental problems noted above. As shown, it is hermetically sealed, and its only interface is a sealed connector, such as first connector  110 . Thus, when a mating connector is installed on first connector  110 , the entire package is sealed and impervious to dust, debris, moisture, etc. The most sensitive parts of the system  100  are enclosed within the sealed interior space of the sealed enclosure  101 . These include a battery  150  or other power source, and an electrical component  140 , which may further include a microprocessor  141 , a memory  143 , and any other active or passive components or circuits needed or desired to make the system  100  work. The battery  150 , or any other power source, as described below, may typically provide electrical power selectively to the electrical component  140  at power input  142  of the component, as shown for example in  FIGS.  5  and  6   . 
     As just one example, electrical component  140  may be or comprise a printed circuit board with the above-mentioned components on it. Further, the electrical component  140  may be functionally and structurally connected to the inside part of first connector  110 . For example, as is well-known, the portion of first connector  110  inside sealed enclosure  101  may have conductor elements that are directly soldered or otherwise connected to the printed circuit board, providing the electrical connections shown, for example, in  FIGS.  5  and  6   . 
     The first connector  110  may have a specific connector pin assignment that allows the system  100  to be easily reconfigured. For example, the following are possible pin assignments: Battery connection, where the positive terminal of the battery or batteries is connected. This connection may be supplied to a powered transducer or sensor, and may also be looped back through the second connector  120  to another pin on the first connector  110 , such that when the two connectors are mated, power is selectively applied to a pin or conductor element  112  of the first connector  110 ; Power supply, where the power supply to the active and passive components of the electrical component or any circuitry within the sealed enclosure  101  is connected; Negative battery connection, which may also be the negative terminal of the battery and also the negative connection of the electrical component  140 , and any active and passive components of the system; Address pins, used to provide a definition of the sensor or transducer connected on the second connector  120 ; Serial communication, for a serial protocol for sophisticated external transducers; and Analog connections, for connection of simple sensors or transducers. Exemplary connections and pin assignments are shown, for example, in  FIGS.  5 - 6   . Note that the connection from sensor  132  may be serial or analog. 
     C. Sensor Assembly. 
     As best shown in  FIGS.  2 - 3   , and schematically in  FIGS.  5  and  6   , the system  100  may include or use a sensor assembly  130 , which may typically comprise a transducer or sensor  132 , connector  120 , and a tether or cable  124  that may mechanically and electrically couple or connect the transducer or sensor to the second connector  120 . As an alternative, the sensor assembly may not have or need an elongated cable such as cable  124 , and may instead use a sensor  132  that is contained in or part of second connector  120 , the sensor  132  in such case possibly having an exposed portion. To extend the reach of sensor  132 , it is not necessary for all connections within or to the second connector  120  to be made near the sensor  132 . In such cases, the sensor  132  may include a smaller sensor cable  128  is indicated in  FIGS.  5  and  6   . 
     For example, in some applications it may be acceptable to sense temperature, humidity, pressure, etc. with a small portion of sensor  132  exposed beyond the housing of second connector  120 . If so, the cable or tether can be eliminated, and the system can operate satisfactorily with just a compact, self-contained second connector, which, as discussed herein, functions as an on/off switch and to signal or inform the electrical component  140  within the sealed enclosure  101  regarding the type of sensor  132  that is plugged in and being used to provide a signal or data to the electrical component  140 . 
     As also discussed previously, the both the first connector  110  and the second connector  120  can be sealing or sealed connectors, such that when they are mated together, the entire system  100  is sealed and impervious to the elements and environmental conditions. As shown in  FIGS.  5  and  6   , the second connector  120  may have wiring connections within it, such as power connection  126 , which serves to provide power from one pin or conductor element  112  of the first connector to another pin or conductor element  112  of the first connector, but only when the two connectors are connected together. As shown in  FIG.  5   , the connection from the positive output of the battery  150  is connected to a conductor element  112  of the first connector, but not to any other element or component. However, this is not critical, as the battery  150 , or other power source within sealed enclosure  101 , may be connected to any element or component as necessary, such as to provide a low level of power, while maintaining the functionality shown, wherein the battery  150  only provide primary (or high-level) power through second connector  120 . 
     Various types of sensors  132  can be used with the system, with their function and characteristics being indicatable by address lines  131 . The address lines  131  may be hard-wired within second connector  120 , with voltage levels on any number of conductor elements being used as addresses that indicate the connector type that is mated or coupled to the second connector  120 . As a specific example, a low voltage (i.e., logic low) may be applied to a number of conductor elements  122  of the second connector  120  through a negative connection from the battery  150  or circuitry within the sealed enclosure  101 . 
     In addition to providing power to electrical component  140  from battery  150 , the second connector  120  may be connected to an external power source  166 , as shown for example in  FIG.  6   . The external power source  166  could be connected to the cable, tether, or otherwise to the second connector  120  to supply power to any component or components within sealed enclosure  101 , such as electrical component  140 , in lieu of or in addition to the battery  150  within the enclosure. The external power source  166  may be connected to the second connector  120  via its own cable  129 . By way of non-limiting example, such external power sources  166  could include a grid power connection, an external battery power connection, an external vehicle power connection, an external solar power connection, an external wind power connection, or any other external power connection. To implement this, the desired external power connection will be physically wired to the power supply connection on the tether with the corresponding battery power connection. Therefore, when the cable  124  or second connector  120  is connected to the first connector  110 , the power supply of the sealed enclosure is physically connected to the external power supply, with both positive and negative connections being available, as shown. Also, as with the case when the internal battery  150  is used, any of the positive or negative leads may be wired to the address lines to provide an address that corresponds to the type of sensor  132 , or any other parameters of the system or the sensor assembly  130 , and even the type of power supply. 
     D. Microprocessor. 
     The system—specifically, the electrical component  140 , may utilize either analog and digital circuitry, or may use a microprocessor  141 , a memory bus, a memory  143 , which may be volatile or nonvolatile, random access memory (RAM), read only memory (ROM), or the like, and a peripheral bus to process and transmit signals, data values, etc. Even if a microprocessor  141  is used, the electrical component may include additional analog and digital circuitry, as may be needed to read address lines, logic conditions, supply power to, and receive analog signals from the sensor  132 , or a transducer, etc. The microprocessor may be a general-purpose digital processor that controls the operation of the electrical component. The microprocessor can be a single-chip processor or it may be implemented with multiple components. Using instructions retrieved from memory  143 , the microprocessor  141  essentially becomes a special-purpose microprocessor that controls the reception and manipulations of input data and the output and transmission of data on output devices, such as a WiFi transmitter and an antenna  147 . The memory bus is utilized by the microprocessor  141  to access any memory devices  143 , such as RAM and ROM. RAM is used by microprocessor  141  as a general storage area and as scratch-pad memory, and can also be used to store input data and processed data. 
     ROM can be used to store instructions or program code followed by microprocessor  141  as well as other data. A peripheral bus is used to access the input, output and storage devices used by the computer. The microprocessor can be used as shown in  FIG.  7   , to ultimately communicate (e.g., directly or indirectly, through peripherals) with an external receiver  160  via communication link  147 , transmitted between antennas  145  and  162 , so that the data provided by sensor  132  and, if applicable, data from or representative of data from address lines  131  indicating what type of sensor and thus what type of parameter is being reported from the system  100 . The data path of the address lines to microprocessor  141  and ultimately external receiver  160  is shown in  FIG.  7   . 
     The microprocessor  141  together with an operating system and memory operate to execute computer code and produce and use data. The computer code and data may reside on RAM, ROM, or a hard disk drive. An interface card or similar device or circuitry and appropriate software implemented by the microprocessor  141  can be utilized to connect the system  100  to an existing network and transfer data according to standard protocols. A network as used and referenced herein may comprise the system and an external receiver, or may be more extensive, including multiple enclosures and receivers. 
     E. Operation of Preferred Embodiment. 
     In use, various types of sensors  132  can be used with the system, as noted above, with their function and characteristics being indicatable or dictated by address lines  131 . The address lines  131  may be hard-wired within the second connector  120 , with voltage levels on any number of conductor elements being used as addresses that indicate the sensor type that is mated or coupled to the second connector  120 . As a specific example, a low voltage (i.e., logic low) may be applied to a number of conductor elements  122  of the second connector  120  through a negative connection from the battery  150  or circuitry within the sealed enclosure  101 . Further, a high voltage (i.e., logic high), such as battery voltage from the positive connection from the battery  150  may be applied to other pins. Thus, through selective application of voltage levels to various conductor elements  122  of the second connector  120 , a unique address indication is provided through the first connector  110  to the electrical component  140 , and to microprocessor  141  or any other circuitry that can use the address information to process the signal or data from sensor  132 . 
     As is known, the address provided by second connector  120  may be in binary or BCD format, or any other usable format capable of uniquely identifying multiple parameters associated with sensor assembly  130 , sensor  132 , etc. This scheme allows a circuit or component, such as microprocessor  141 , to use data or program information associated with the correct sensor type as indicated by the address. For example, if a thermocouple is plugged into the sealed enclosure  101 , the address will indicate that, in addition to what type of thermocouple is connected (e.g., type K, T, etc.) and the microprocessor  141  or electrical component  140  can process the thermocouple voltage according to standard values to calculate the temperature read by sensor  132 . For example, in one possible connection configuration (for example, all of the address pins connected to ground), this connection may correspond to the transducer or sensor being a thermistor. Upon power up, the electrical component  140  within the sealed enclosure  101  will determine the connections on the address pins to all be grounded, recognize this configuration to be a temperature function, and broadcast the data as temperature. In a different configuration, where one of the address pins (perhaps the least significant digit as defined in the pin connections) is connected to the power supply pin while the remaining address pins are connected to ground, the electrical component  140  will recognize the connection pattern as corresponding to a relative humidity sensor and broadcast the data as relative humidity. 
     Accordingly, use of the system  100  allows a user to only change the least costly component, in this case, the sensor assembly  130  connecting to the sealed enclosure  101 . The system can thus perform a wide range of functions, from a grid powered temperature sensor to a battery-powered humidity sensor, with no changes to the electronics or sealed enclosure  101 , by only changing the external sensor assembly or even an integrated sensor/connector as described above, which is the easiest and least expensive component to change. 
     The transducer  132  on the cable  124  may be analog in its function (with a variable voltage, resistance, conductance, or current) or digital (with a one wire or multi wire communication protocol). Environmental parameters that may be measured include, but are not limited to:
         Temperature   Relative humidity   Air pressure   Contact pressure   Elapsed time   Position   Magnetic   Vibration   Gas concentrations, such as CO or CO 2      Turbidity   Wind   Altitude   Moisture   Liquid level       

     The system  100  will read the address pin connections, read the data of the transducer, and broadcast a data package wirelessly via a communications link  147  that contains the transducer or sensor type and address. Any receiver that connects to the system  100  can decode the address pins based on the connection, and translate the corresponding transducer data to a meaningful value. 
     The sensor data from sensor  132  may be processed entirely by electrical component  140 , and then be transmitted to an external receiver  160  via communication link  147 , using antennas  145  and  162  as shown in  FIGS.  5 - 7   . Alternatively, the raw sensor data along with address information signifying the sensor/parameter type may be sent as just described for processing by receiver  160  or other parts of a system. 
     Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although methods and materials similar to or equivalent to those described herein can be used in the practice or testing of the sealed enclosure power control system, suitable methods and materials are described above. All patent applications, patents, and printed publications cited herein are incorporated herein by reference in their entireties, except for any definitions, subject matter disclaimers or disavowals, and except to the extent that the incorporated material is inconsistent with the express disclosure herein, in which case the language in this disclosure controls. The sealed enclosure power control system may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present embodiment be considered in all respects as illustrative and not restrictive. Any headings utilized within the description are for convenience only and have no legal or limiting effect.