Stainless steel LED power switch

Abstract

An encapsulated LED switch that incorporates a MOSFET power drivers, high current transistors, or other suitable power drivers in a PCB that attaches to the LED switch such that a low power LED switch controls the output of a high-power driver. The selected power driver PCB can be adapted to different load requirements by making simple changes. The PCB's can be interchanged to provide for a predetermined output power required for a particular application. In addition, the wire gauge size of the wires attached to the MOSFET power driver PCB can also be varied to match intended load requirements. For applications in which the LED switch is used in hostile environments, such as marine applications, the LED switch and its associated power driver PCB are encapsulated to protect the circuitry from environmental factors such as high humidity, salt water, etc.

Claims

1. A high power switch assembly, comprising: an LED switch having an off and on position; a thermal breaker operatively attached to the LED switch; a PCB driver operatively attached to the LED switch such that when the LED switch is in the on position, the PCB driver outputs a high amperage on its output lines; a first circuit operatively connected to said LED switch and said first circuit having an output; a second circuit operatively connected to said LED switch and said second circuit having an output; a first state comprising said outputs of both said first and said second circuits being active; a second state comprising said output of said first circuit being inactive and said output of said second circuit being active; wherein operation by a user of said LED switch transitions from said first state to said second state.

2. A switch assembly, as in claim 1, wherein: said first state further comprises said LED switch emitting a first color of light; said second state further comprises said LED switch emitting a second color of light; wherein said first color and said second color are distinct from each other.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) For a fuller understanding of the nature of the present invention, reference should be had to the following detailed description taken in connection with the accompanying drawings in which:

(2) FIG. 1 illustrates a typical LED 5 A VDC Amp switch.

(3) FIG. 2 illustrates a MOSFET power driver PCB.

(4) FIG. 3 illustrates a preferred embodiment of the power switch assembly comprising an LED switch and a MOSFET power driver PCB.

(5) FIG. 4 illustrates a preferred embodiment of the power switch assembly comprising an LED switch and a MOSFET power driver PCB with a sealed encapsulation sleeve.

(6) FIG. 5 illustrates a preferred embodiment of the power switch assembly comprising an LED switch capable of providing high current loads.

(7) FIG. 6 illustrates an alternative preferred embodiment of the power switch assembly that provides a programmable two-circuit navigation and anchor light driver circuit.

(8) FIGS. 7-8 illustrate alternative preferred embodiments of the power switch assembly that provide programmable circuits capable of driving multiple solenoid driver circuits.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

(9) The invention provides a sealed high-power switch that is encapsulated to protect the switch from environmental factors. For ease of discussion, the invention will be discussed in terms of use with marine equipment. However, those skilled in the art will recognize that the invention provides the same benefits to a wide range of other applications in many fields, such as aviation, automotive, computers, etc.

(10) In FIG. 1, a prior art LED switch 1 is shown. This particular switch is fabricated with a stainless-steel sleeve to protect the switch from corrosive elements that are typically found in marine environments. Once the LED switch 1 is fabricated, the stainless-steel sleeve is sealed with an environmentally insensitive material to prevent exposure of the electrical and mechanical components to the external environment. In the preferred environment, the stainless-steel sleeve is filled with epoxy, but any other material can be used that is suitable for the task. Likewise, the sleeve can be fabricated with material other than stainless steel so long as the material is suitable for its intended task.

(11) FIG. 2 illustrates a power driver PCB 2. In the preferred embodiment, the power driver PCB 2 is sized to have approximately the same width as the LED switch 1 such that they can be packaged together more easily.

(12) FIG. 3 illustrates a preferred embodiment of the power switch assembly 3 comprising an LED switch 1 and a MOSFET or high-power transistor power driver PCB 2. As shown, the led switch 1 and the MOSFET or high-power transistor power driver PCB 2 are sized with roughly the same width for packaging purposes. In addition, power lines 3-4 are shown attached to the output of the MOSFET power driver PCB 2. Power lines 3-4 provide power to current intensive devices on marine or other equipment such as pumps, horns, etc. Ground line 4 is also illustrated.

(13) FIG. 4 illustrates a preferred embodiment of an encapsulated power switch assembly 5 comprising an LED switch 1 and a MOSFET or high-power transistor power driver PCB 2 that is enclosed in a sealed encapsulation sleeve 6. In the preferred embodiment, the encapsulated power switch assembly 5 is sealed with epoxy to isolate the internal circuitry from the environment.

(14) The following FIGS. 5-8 are examples of circuits that can take advantage of the invention. However, those skilled in the art will recognize that any number of circuits can be designed to perform a wide variety of functions.

(15) FIG. 5 illustrates a preferred embodiment of the power switch assembly comprising an LED switch capable of providing high current loads. An advantage of the invention is that the functional characteristics of the switch can be easily altered based upon the PCB selected for a particular function. By way of example, the circuit shown in this figure is capable of providing current loads up to 20 ADC to a device. This embodiment uses a BT15LEDSW-M circuit that provides a Momentary 15 ADC. Another alternative embodiment uses a commercially available BT15LEDSW circuit, which is an On/Off 15 ADC. A further alternative embodiment is the BT15LEDSW-MF is also a Momentary 15 ADC, but differs in that it has a resettable thermal breaker. Yet another alternative preferred embodiment uses a BT15LEDSW-F, which is and On/Off 15 ADC with a resettable thermal breaker. The PCBs provided as an example are commercially available from Bocatech, Inc. For all of the resettable thermal switches, a single thermal breaker, such as a commercially available UL Bussman thermal breaker, among others, is installed in-line with the power input to the switch. Of course, any number of other suitable switches can be used to suit a particular purpose. As a result, the foregoing embodiments are exemplary only and do not limit the types of PCBs that can be used as a component of the switch. In practice, the invention envisions switches having a variety of ratings including but not limited to 5, 10, 15 and 20 ADC.

(16) Those skilled in the art will recognize that any color led can be selected based on design preferences.

(17) FIG. 6 illustrates a preferred embodiment of the power switch assembly that provides a programmable two-circuit navigation and anchor light driver circuit. The PCB circuit used in this embodiment is a BTNAVLEDSW circuit that is commercially available from Bocatech, Inc. The circuit uses a bi-color LED switch that functions as follows:

(18) 1. One push of the switch button activates the blue switch LED and activates both circuit outputs to illuminate the navigation and anchor lights on a vessel.

(19) 2. The second push of the switch button turns off the blue switch LED and turns on the red switch LED and activates only the circuit controlling the anchor lights.

(20) An alternative embodiment uses a microcontroller on the PCB to provide a timer function that automatically turns off the navigation lights in the event the boat owner forgets to do so.

(21) FIGS. 7-8 illustrate other alternative preferred embodiments of the power switch assembly that provide programmable circuits capable of driving multiple solenoid driver circuits. In addition, the PCB can be fabricated from two separate PCBs that are plugged together and assembled as a single switch assembly. This allows PCBs having various functions be joined together for a particular application. As a result, the resulting circuit can provide multiple functions such as solenoid drivers, water pressure sensors, current monitoring, etc. In addition, safety features such as alarms can be incorporated into the PCB that alerts the boater by flashing the red LED on a bi-color switch. Likewise, those skills in the art recognize that audible alarm can also be built into the switch.

(22) As can be seen, the invention provides a low power switch that controls a high power MOSFET driver to provide power to a variety of devices, while protecting the circuitry from harsh environments, such as in marine applications. Further, the switch disclosed herein can be designed to use one of many PCBs that are capable of forming any number of functions.

(23) Because the switches disclosed herein may be designed with microprocessors for micro controllers, they would in effect become smart switches that include one or more of the following capabilities:

(24) 1. Programming capabilities (e.g., On/Off, Momentary, multimode etc.).

(25) 2. Communications capability (e.g. NEMA2000, CAN, RS232, USB, etc.).

(26) 3. Current monitoring, including shutdown.

(27) 4. Overvoltage and undervoltage monitoring.

(28) 5. Multicolor LED switch controls.

(29) 6. Visual and audible alarm functions.

(30) 7. Sensor applications, such as water pressure, air pressure, fuel pressure, oil pressure, vacuum pressure, etc.

(31) 8. Timer and counter functions with indicators.

(32) 9. Data acquisition.

(33) 10. Adaptable to switches of different types and sizes.

(34) 11. Ignition proof.

(35) As can be seen from the foregoing discussion, the invention provides a number of advantages. It is inexpensive to manufacture, it is compact and lightweight, it provides effective protection of electronic circuitry from the outside environment, and can be use in a wide variety of environments and technical and commercial areas.

(36) While the invention has been described with respect to a preferred embodiment thereof, it will be understood by those skilled in the art that various changes in detail may be made therein without departing from the spirit, scope, and teaching of the invention. For example, the material used to construct the switch may be anything suitable for its purpose, the size and shape of the encapsulated power switch assembly can vary, the type of circuitry can vary, etc. Accordingly, the invention herein disclosed is to be limited only as specified in the following claims.

(37) Now that the invention has been described,