FIELD OF INVENTION
The present invention relates, generally, to a circuit protection device and
more particularly to the circuit protection devices providing both overcurrent
protection and a current limitation simultaneously.
BACKGROUND OF THE INVENTION
The statements in this section merely provide background information related
to the present disclosure and may not constitute prior art(s).
Electricity has become a necessity in modern society wherein we are totally
dependent on it for our every chores. IT industry, homes, transportation, education,
entertainment, etc, are all heavily dependent on electricity. Therefore, the safe usage
of electricity has become more and more vital for people.
An electrical plant is generally governed by an electrical circuit provided with
a main switch generally at the "ON" status and also a fuse to safeguard the said
electrical circuit. During an electrical overloading, short-circuiting, or high circuit
temperature event, the fuse is melted or the circuit breaker is jumped to protect the
safety of the electricity system. Additionally, the switches are also provided with the
capacity of automatically jumping offline when an overloading or high circuit
temperature event has occurred to prevent the risk of electrical fire due to the possible
inability to react in time of the fuse or circuit breaker. Moreover, some individual
electrical products such as high-priced electronic products, data processing
equipments, or electric heating appliances are provided with temperature sensing
circuit breaker for the overall protection of the electrical circuit. However, such
devices get damaged, deflected when over-heated, and/or may lead to dangerous
function of surrounding costly electronic components too.
Various automatic and manual attempts have been made to provide a suitable
and efficient device or to reduce the heat generated in the e-rickshaw so as to
safeguard the lives *of the e-rickshaw and the surrounding keeping in the mind the
necessities of the present market. However, the concepts could not be commercially
accepted due to some drawbacks such as complexities involved, less efficiency, nonreliability,
robustness, extensive manufacturing cost, and the like.
Hence, there is an urgent need for a circuit protection device to control and
thus safeguard the circuit and therefore the vehicles such as e-rickshaws without
losing the basic requirements of reliability, safety, less cost, customers' satisfaction
and the like.
BRIEF SUMMARY AND OBJECTIVES OF THE INVENTION
The present subject matter relates to an automotive vehicle provided with an
electronic circuit fitted with a schottkey diode that comprises of a chassis having
front and rear ends, a battery operating with an electronic circuit structure comprising
various sub circuits,a plurality of schottkey diodes provided with respective sub
circuits in the electronic circuit structure to safeguard the electronic circuit structure
from the danger of in-rushing overvoltage and overcurrent into the electronic circuit
structure.
»
An object of the present subject matter is to provide the chassis supported on
an axle which is supported on the rear wheels mounted rotatably on a rear shaft of the
e-rickshaw.
An object of the present subject matter is to power the e-rickshaw with
plurality of LEAD acid batteries placed in atleast one battery container.
An object of the present subject matter is to provide the e-rickshaw with the
vehicle information display instrument located between the handle bars of the erickshaw.
An object of the present subject matter is to enable the e-rickshaw with brake
means mounted on the rear wheel axle to stop the e-rickshaw as and when required.
Another object of the present subject matter is to enable the e-rickshaw with a
first-aid box and a fire-extinguisher.
Another object of the present subject matter is to govern the operation of the
e-rickshaw by the electronic circuit structure.
Another object of the present subject matter is to safeguard the electronic
circuit structure with plurality of schottkey diodes.
Yet another objective of the present invention is to provide an easy, compact,
safe, less costly and advanced automotive vehicles.
BRIEF DESCRIPTION OF DRAWINGS
The summary narrated above and the following detailed description of the
invention can be understood with the drawings appended to this claim. The
illustrations provide the details of the invention. However, it should be understood
that the invention is not limited to the arrangements shown. In the drawings:
FIG, 1 shows a perspective view of an e-rickshaw in an embodiment of the present
subject matter.
FIG. 2A to FIG. 2F illustrates various electronic circuit structures in an embodiment
of the present subject matter.
DETAILED DESCRIPTION OF THE INVENTION
The embodiments of the present subject matter are described in detail with
reference to the accompanying drawings. However, the present subject matter is not
limited to these embodiments which are only provided to explain more clearly the
present subject matter to the ordinarily skilled in the art of the present disclosure. In
the accompanying drawings, like reference alphabets and numerals are used to
indicate like components. The drawings are not necessarily drawn to the scale, and in
some instances the drawings have been exaggerated and/or simplified in places for
illustrative purposes only.
The present invention relates, generally, to a circuit protection device and
more particularly to the circuit protection devices providing both overcurrent
protection and a current limitation simultaneously. The following description is
merely exemplary in nature and is not intended to limit the present disclosure,
application, or uses. The present invention will hereinafter be described in detail
below as applied to an e-rickshaw. However, the principles of the present invention
are also applicable to other vehicles such as two wheelers, four wheelers, and the like.
Upward, lower, front and rear directions (see the directions indicated by the arrows in
FIG. 1) will be described with respect to directions as seated by the rider on the erickshaw.
FIG- 1 illustrates a perspective view of the e-rickshaw 100 in an accordance
with an embodiment of the present subject matter. The e-rickshaw 100 include a
chassis 102 supported on an axle hold on the rear wheels 106 mounted rotatably on a
rear shaft 108 of the e-rickshaw 100. In an embodiment of the present subject matter,
the e-rickshaw 100 is economically provided with a seat 110 mounted on a battery
container 112 placed above a floor 114 provided with the e-rickshaw 100. The battery
container 112 is positioned at the floor 114 on the rear portion of the chassis 102 of
the e-rickshaw 100. The e-rickshaw 100 is further provided with a front wheel 124
supported on a front end of a frame 116, in an embodiment of the present subject
matter. The e-rickshaw 100 is equipped with a switch (not shown) on its handlebar
118 to control an electric motor (not shown) provided with the e-rickshaw 100. The
e-rickshaw 100 is generally powered by pluralities of LEAD acid batteries 120 placed
in the battery container 112, as shown in FIG. 1, to provide electrical energy to the
electric motor. The e-rickshaw 100 is also structured with the vehicle information
display instrument 122 (also known as a speedometer) located between the handle
bars of the e-rickshaw 100. The vehicle information display instrument 122 may be
viewable by the rider of the e-rickshaw 100 when the rider is seated on the seat 110
and operating the vehicle 100. The vehicle information display instrument 122 may
be disposed generally in front of the rider so that the rider can inspect or view a
variety of information that form part of the vehicle information display instrument
122, which information may indicate an operating condition or conditions of the
vehicle 100. The vehicle information display instrument 122 may be provided with
audio/visual warning indicators comprising information such as speed, the fuel level,
telephone, bluetooth, rpm of the engine, tell tale symbols, turn signal indicator,
hazard warning indicator and/or other indicators. Further, the e-rickshaw 100 is hold
by a brake means such as brake rod 104 mounted on the rear wheel axle to stop the erickshaw
100 as and when required. Also, a brake lever is provided with the handle of
the rickshaw 100 to actuate the brake means as required. Additionally, the e-rickshaw
100 is also provided with a first-aid box (not shown) and a fire extinguisher (not
shown).
FIG. 2A to FIG. 2F illustrate various electronic circuit structures 200 that
defines the presence of plurality of schottkey diodes 202 in various sub-circuits of the
electronic circuit structure 200 of the e-rickshaw 100 in an embodiment of the present
subject matter. The schottkey diodes 202 are placed in various sub-circuits such as
battery monitoring circuit (FIG. 2A), throttle position control circuit (FIG. 2B),
ignition switch circuit (FIG. 2C), DC to DC converter circuit (FIG. 2F), and the like.
Generally, the schottkey diode 202 is a semiconductor diode (not shown) formed by
the junction of a semiconductor with a metal. It has a low forward voltage drop and a
very fast switching action. The operation in these schottkey diodes 202 are due to the
fact that the electrons in different material have different potential energy. In
particular, the N type semiconductors have higher potential energy as compare to
electrons of metals. So, when these two are brought together in contact, there a flow
of electron in both direction across the metal-semiconductor interface when contact is
first made. A voltage is applied to the schottkey diode 202 such that the metal is
positive with respect to semiconductor, as a result of which, the voltage will oppose
the built in potential and makes it easier to current flow. Advantageously, the
schottkey diodes turn on and off faster than ordinary P-N junction diode the basic
reason behind this is that schottkey diodes 202 are based on majority carrier. Also, as
there is no minority carrier there is no worry about depletion layer. Further, it has
much less voltage overshoot. In other words, the schottkey diodes 202 safeguard the
electronic circuit structure 200 from the danger of in-rushing overvoltage and
overcurrent into the electronic circuit structure governing the e-rickshaws.
The vehicles provided with such electronic circuit structure powered with
schottkey diodes according to the present subject matter advantageously monitor a
controlled operation the e-rickshaws. The set-up is qualified to shut the system off in
case of overvoltage and overcurrent in-rushing the electrical controller of the erickshaw
with the presence of these schottkey diodes. Further, the schottkey diodes
turn on and off faster than ordinary P-N junction diode the basic reason behind this is
that schottkey diodes are based on majority carrier. Also, as there is no minority
carrier there is no worry about depletion layer. Furthermore, it has much less voltage
overshoot. In other words, the schottkey diodes safeguard the electronic circuit
structure from the danger of in-rushing overvoltage and overcurrent into the
electronic circuit structure governing the e-rickshaws. Additionally, since there are
not major complexities involved in terms of the electronic components and the circuit,
hence the arrangement if less costly too. Further, the life of battery , electric
controller and of course the e-rickshaws also gets enhanced considering less
maintenance required in. these thermistor fitted vehicles.

WE CLAIM:
1. An automotive vehicle 100 comprising:
a chassis having front and rear ends;
a battery operating with an electronic circuit structure 200 comprising various
sub circuits;
plurality of schottkey diodes 202 provided with respective sub circuits in the
electronic circuit structure to safeguard the electronic circuit structure 200
from the danger of in-rushing overvoltage and overcurrent into the electronic
circuit structure 200.
2. The automotive vehicle 100 powered with a schottkey diode 202 as claimed in
claim 1, wherein the sub-circuits includes battery monitoring circuit, throttle
position control circuit, ignition switch circuit, DC to DC converter circuit, and
the like.
3. The automotive vehicle powered with a schottkey diode 202 as claimed in claim
1, wherein the vehicle includes a chassis supported on an axle hold on the rear
wheels mounted rotatably on a rear shaft of the e-rickshaw.
4. The automotive vehicle powered with a schottkey diode 202 as claimed in claim
1, wherein the e-rickshaw 100 is generally powered with a pluralities of LEAD
acid batteries 120 placed in the battery container 112.
5. The automotive vehicle powered with a schottkey diode 202 as claimed in claim
1, wherein the schottkey diode is a semiconductor diode formed by the junction
of a semiconductor with a metal.