FIELD OF THE INVENTION
The present invention relates to a refrigerator that provide illumination in the absence of electricity. This is an innovative solution for overcoming darkness in the surrounding and interior of the refrigerator in the absence of electricity.
BACKGROUND OF THE INVENTION
Whenever there is a power failure, and a person is woridng in a kitchen, he/she panics & has to rush for lighting source, either lighting a candle/lantern. After organizing the light source only, he/she resumes her cooking/kitchen/household chores.
Till the time candle/lantern is lit, the person is ccmcemed of safety as slightest error can lead to fire in house. If they have small children then concern is further heightened for obvious reasons. People living in power starved area, has always to maintain inventory of candle, lantern, kerosene oil, matchbox etc in the house. Also, the person has to remember the stored place of these items & should be accessible in darkness.
Based on the foregoing, there is a need for a illuminating source for providing illumination in the absence of electricity. Further, the illuminating source should be convenient, efficient and safe.
OBJECTS OF THE INVENTION
• The present invention overcomes the basic problem faced by majority of people living in power starved region.
• The invention mentioned here eases all above mentioned concems providing a convenient, efficient and safe solution against blackout during power cut.
• This invention relates to a refrigerator with an emergency light integrated in the said refrigerator.
• The refrigerator illuminates the surrounding in the absence of electricity.

SUMMARY OF THE INVENTION
In an embodiment of the present invention, a refrigerator is provided. The refrigerator comprises a control board, a rechargeable battery electrically coupled with the control board and at least one Light Emitting Diode (LED) board for illumination electrically coupled to the control board.
In an embodiment of the present invention a LED board of the at least one LED board is provided on an exterior portion of the refrigerator to illuminate the surrounding of the refrigerator in the absence of the power supply.
In an embodiment of the present invention, a LED board is provided on an interior portion of the refrigerator for illuminating the interior of the refrigerator in the absence of power supply and when a door of the refrigerator is in open position.
In an embodiment of the present invention, the control board is coupled to a rear portion of the said refrigerator and have a battery charger for charging the re-chargeable battery.
In an embodiment of the present invention, the LED board comprises plurality of LEDs, a cap for covering the plurality of LEDs and a reflector for even and efficient illumination.
In an embodiment of the present invention, the LED board is integrated in the end cap of the door of the refrigerator to illuminate the surrounding in the absecne of the power supply.
In an embodiment of the present invention,the LED board is integrated in the interior portion of the door of the refrigerator to illuminate the interior of the refrigerator in the absence of power supply and when the door of the refrigerator is in open position.
In an embodiment of the present invention, the control board be activated or de-activated by a user.
In an embodiment of the present invention, the rechargeable battery is NiMH battery.

These together with other embodiments of the present invention, along with the various features of novelty that characterize the present invention, are pointed out with particularity in the claims annexed hereto and form a part of this present invention. For a better understanding of the present invention, its operating advantages, and the specific objects attained by its uses, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated exemplary embodiments of the present invention.
BRIEF DESCRIPTION OF DRAWINGS
The advantages and features of the present invention will become better understood with reference to the following detailed description and claims taken in conjunction with the accompanying drawings, wherein like elements are identified with like symbols, and in which:
Figure 1 depicts the front view of the refrigerator
Figure 2 depicts the sectional side view of the refrigerator
Figure 3 depicts the rear view of the end cap of the door.
Figure 4 depicts a block diagram.
Like reference numerals refer to Like parts throughout the description of several views of the drawings.
DETAILED DESCRIPTION OF THE INVENTION
For a thorough understanding of the present invention, reference is to be made to the following detailed description, including the appended claims, in connection with the above-described drawings. Although the present invention is described in connection with exemplary embodiments, the present invention is not intended to be limited to the specific forms set forth herein. It is understood that various omissions and substitutions of equivalents are contemplated as circumstances may suggest or render expedient, but these are intended to cover the application or implementation without departing from the spirit or

scope of the claims of the present invention. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.
The terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item
The present invention provides a refrigerator. The refrigerator comprises a control board, a rechargeable battery electrically coupled with the control board and at least one Light Emitting Diode (LED) board for illumination electrically coupled to the control board.
Referring to Figure 1, a front view of the refrigerator 100 is depicted. The refrigerator comprises a external portion 102, a door 104 and a LED board 106. The door 104 includes a end cap 108. The end cap 108 is placed at the top portion of the door 104. In an embodiment of the present invention the LED board 106 is integrated in the end cap 108 of the door 104. However, it is obvious to a person skilled in the art that the said LED board 106 may be integrated anywhere on the extemal portion of the refrigerator 100. The LED board 106 provides LED based illumination. However, it will be obvious to a person skilled in the art that the illumination may be provided by other means also such as electric bulb, xenon filament bulb and the like.
Referring to Figure 2, a secional side view of the refrigerator 100 is depicted. The LED board 106 is integrated m the end cap 108 of the door 104. The LED board 106 is coupled to a control board 110. The control board 110 is mounted on the rear side of the refrigerator. The control board draws power from the electrical system of the refrigerator. The control board includes a charter that is capable to charge a rechargeable battery 114. The capacitive non-isolated power supply is used for batteiy charging and for operating control circuit 110. The battery is charged by constant voltage charging method. The battery charger operates from 160 Volt AC to 260 volt AC. Also it is used for battery deep discharge cutoff. The control circuit is used to control the LED board 106. The control circuit is designed to detect the power supply and to provide power to the LED board 106 from the rechargeable batteiy in the absence of power supply. The control board 110 may be activated or de-activated by a user as the requirements of the user. Also, a LED board 112 is integrated in the interior portion of the door 104. The LED board 112 illuminates in the absence of power supply to the refrigerator 100 and

when the door 104 of the refrigerator 100 is in open position. The control board 110 detects the open position of the door 104 with the help of a door button (not shown). The door button is pressed when the door 104 is in closed position whereas the button remains in unpressed when the door 104 is in open position. Therefore, as the control board detects the disruption in power supply of the refrigerator 100 and the position of the door button as unpressed, the LED board 112 is provided with power supply from the rechargeable battery 114 and the LED board 112 illuminates the interior of the refrigerator 100. The LED board 112 is also electrically coupled to the control board 110. The said elearical coupling may be carried out using electrical wires.
Referring to Figure 3, a rear view of the end cap 108 is depicted. The said end cap 108 is mounted on the top portion of the door 104. The end cap 108 includes LED board 106 and a rechargeable battery 114. The rechargeable battery 114 is electrically coupled to the control board 110, The rechargeable battery 114 is recharged by the charger on the control board 110, The rechargeable battery 114 provides power to the LED board (106, 112) for illumination. In an exemplary embodiment of the present invention, the the rechargeable battery 114 charging time is 8 hours and the backup time is 2 hours upon continuous illumination of the LED board. The rechargeable battery 114 may include a 3.6V/440 mAH, NiMH battery. The LED board 106 includes a plurality of LEDs 116, a cover 118 for covering the plurality of LEDs 116 and a reflector 120 for providing even and efficient illimination. The plurality of LEDs 116 may include cool white LEDs for illumination. The Plurality of LEDs may include 6 LEDs, In an exemplary embodiment of the present invention, the plurality of LEDs 116 may provide illumination equivalent to 40 watt filament electric lamp i,e, good enough to lit a room with size 10' X 12', A 3mm tact switch is provided to engage and disengage LED emergency lighting function.
Referring to Figure 4, a block diagram is depicted. The refrigerator comprises a control board 110, a rechargeable battery 114 electrically coupled to the control board 110 and a LED board 106 for illumination and the said LED board 106 is electrically coupled to the control board 110. The control board 110 draws power from the refrigerator power supply. The control board 110 includes a control circuit 120 and a battery charger 122. The battery charger 122 charges the rechargeable battery 114. The control circuit 120 detects the disruption in the power supply of the refrigerator. Upon detecting the disruption, the control circuit provide power to the LED board 106 from the rechargeable battery

114 to illuminate the LED board.
In working, the control board draws the power from the refrigerator's power supply. Also, the control board 110 detects the disruptions in the power supply to the refrigerator 100. The charger in the control board 110 keeps the rechargeable battery 114 charged. Upon detecing the disruption in the power supply of the refrigerator 100, the control board 110 supply power to the LED board 106 to illuminate the surrounding. As the control board 110 detects restoration of the power supply to the refrigerator 100. It shut down the LED board 106 by cutting the battery power supplied to the LED board 106. The LED board 106 may illuminate till the rechargeable battery 114 is drained out. Further, if a user opens the door of the refrigerator when the power supply to the refrigerator is disrupted, the control board 110 detect the open position of the door 104 and provide rechargeable battery 114 power to the LED board 112 to illuminate the interior of the refrigerator. The user may activate or de-activate the control board 110 as per the requirements.
The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the present invention and its praaical application, to thereby enable others skilled in the art to best utilize the present invention and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents are contemplated as circumstance may suggest or render expedient, but such are intended to cover the application or implementation without departing from the spirit or scope of the claims of the present invention.

We Claim:
1. A refrigerator 100 comprising:
a control board 110;
a rechargeable battery 114 electrically coupled with the control board 110; and
at least one Light Emitting Diode (LED) board for illumination electrically coupled to the
control board 110.
2. The refrigerator as claimed in claim 1, wherein a LED board 106 of the at least one LED board is provided on an exterior portion of the refrigerator 100 to illuminate the surrounding of the refrigerator 100 in the absence of the power supply.
3. The refrigerator as claimed in claim 1, wherein a LED board 112 is provided on an interior portion of the refrigerator 100 for illuminating the interior of the refrigerator 100 in the absence of power supply and when a door 104 of the refrigerator 100 is in open position.
4. The refrigerator as claimed in claim 1, wherein the control board 110 is coupled to a rear portion of the refrigerator and have a battery charger for charging the re-chargeable battery 114.
5. The refrigerator as claimed in claim 1, wherein the LED board 106 comprises plurality of LEDs, a cover 118 for covering the plurality of LEDs 116 and a reflector 120 for even and efficient illumination.
6. The refrigerator as claimed in claim 2, wherein the LED board 106 is integrated in the end cap
108 of the door 104 of the refrigerator 100 to illuminate the surrounding in the absence of the power supply.
7. The refrigerator as claimed in claim 3, wherein the LED board 106 is integrated in the interior
portion of the door 104 of the refrigerator 100 to illuminate the interior of the refrigerator 100 in the
absence of power supply and when the door 104 of the refrigerator 100 is in open position.

8. The refrigerator as claimed in claim 1, wherein the control board may be activated or deactivated by a user.
9. The refrigerator as claimed in claim 1, wherein the rechargeable battery 114 is NiMH battery.
10. The refrigerator as hereinbefore described with reference to the accompanying drawings.