The Design And Construction Of A 12V Rechargeable Lantern (PDF/DOC)
Since the invention of electricity by Michael faraday, Man has been so used to electricity that he cannot do without it. The absence of electricity causes a lot of sadness in our daily lives. Due to this reason I decided to work on a by rechargeable lamp as my project.
Researchable lamp is a source of light that is generated from a D.C sources of supply this D.C sources is a battery that can also way be charged when it current and voltage ruse.
It also serves as immanency sources of light mostly when there is failure from out public power supply (P.H.C.N). The project is to see how one can construct a source of high without really generating is from an A.C source.
This project is a 12v rechargeable battery to generate light which is very useful to man both at home and otherwise. It is a stem that is very portable and very effective mostly t might after which it has been charged.
This lantern operates on rechargeable batteries which can be charged, with the adaptors included, whether at home or while on the move by car. The 100 LED’s provide excellent levels of lighting and up to 20 hours operating time on full charger making it an ideal camping companion.
1.1 INTRODUCTION
A 12v rechargeable lantern is a portable lighting device or mounted light fixture used to illuminate broad areas. Lanterns may also be used for signaling, as torches, or as general light sources outdoors. Low light level varieties are used for decoration. The term “lantern” is also used more generically to mean a light source, or the enclosure for a light source.
Rechargeable lights are very useful electrical gadgets and are quite popular, too. During a power failure these portable lights are able to instantly illuminate through battery backup and never allow us to stumble in the darkness. Although you will find a variety of them in different shapes and sizes in the market, but building your own emergency light at home can be a totally different experience. It will not only help you to create a quality design but also will acquaint you to the technical aspects of the unit. Besides, you also get an opportunity to customize the circuit as per your own needs.
1.2 PROBLEM STATEMENT
In the last decade candle stick and kerosene or gas lantern were used as a source of light for mankind but the problem of using candle are numerous such as it cost effective, weighty, convenient and unsafe to environment and human health. Because of these disadvantages led to the invention of rechargeable lantern. Rechargeable lantern has the following advantages over candle stick, kerosene or gas lantern:
a. Compared to a gas lantern, a rechargeable lantern is light as a feather. Gas lanterns are typically made of glass and have metal canisters that add weight that rechargeable lanterns are able to eliminate. The lighter the weight of the lantern the more versatile it can be, whether it be to light up the card table or take it for your bathroom break.
b. With the variety of lanterns like liquid fuel, gas, or even candle, a rechargeable lantern is an alternative that offers ease of use. All you have to do it switch it on and light is available. This saves you from having to remember to bring other items on the trip like gas to fuel the lantern or matches to light the candle. If you happen to have kids joining you on a camping trip, spoiler alert: they will more than likely drop a gas lantern and break the glass. Skip to the good part and allow them to carry a rechargeable lantern without worry.
c. Lanterns with flames always come with a small risk of causing a fire, but rechargeable lanterns don’t require a babysitter. By avoiding a kerosene powered lantern, you can eliminate potential fumes.
d. Rechargeable lantern can be charged via AC plug, DC plug, dynamo crank function, or with solar panels.
1.3 AIM AND OBJECTIVES OF THE PROJECT
The main aim of this work is to build a 12v rechargeable lantern. The objectives of the study are:
i. To build a rechargeable lighting gadget that can be recharge directly from ac mains
ii. To provide a means of lighting up an environment whenever there is power outage during the night.
iii. To study the operating principle of a rechargeable lantern
1.4 SIGNIFICANCE OF THE PROJECT
This system charges when there is power supply, the energy is stored in a rechargeable battery which is to be used when there is power outage. The lasting of the stored energy depends on the capacity of the rechargeable battery.
1.5 LIMITATION OF THE PROJECT
The device is recharge directly to ac mains, and can easily get burnt when high voltage is experienced in the mains if it is not properly regulated.
1.6 APPLICATION OF THE PROJECT
Rechargeable lantern is used in many places such as:
• In school library, hall and labs
• Churches
• Workshop
• Homes, etc
All for the purpose of illuminating of such environment. They highly choose because of its simplicity and safety, that is, it can be charged, hanged, and continues with your adventures into the night.
1.7 SCOPE OF THE STUDY
The scope of this work covers of the construction of a rechargeable lantern using LED. It operates with 12v rechargeable battery and 100 LEDs that provide excellent levels of lighting up to 20 hours operating time on full charger making it an ideal camping companion.
1.8 RESEARCH HYPOTHESIS
H1: There is a significant relationship between rechargeable lantern and LEDs
Research Questions
i. What is the importance of rechargeable lantern in a building?
ii. Is there any disadvantage of using rechargeable lantern?
iii. What is the operating principle of a rechargeable lantern?
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