FIELD OF THE INVENTION.
5 [001] The present invention relates to three wheeled electric motor vehicle (3W-EMV) with refrigeration carriage of enhanced volume.
BACKGROUND OF THE INVENTION.
[002] Exist in the prior arts are the medical cold storage boxes containing the drugs are carried by the two wheeled vehicles to far-flung areas. As the two-wheeler is capable of carrying only one or two boxes, only few medicines are transported in one ride. This causes a delay in administrating the drug to the patients and require a multiple ride for covering the entire community. To avoid the multiple ride, the tricycles with refrigerated wagons are used as an alternative to two wheelers. However, existing tricycles with refrigerated wagon are not environment friendly, as the power for the refrigerating unit is drawn from the internal combustion engines. On the other hand, the vehicle with high battery power capacity were incapable to penetrate the remote areas owing to the large size of the vehicle.
[003] CN102837578A discloses about a three wheeled vehicle with refrigeration system carriage using a compressor, a condenser, an evaporator and an incubator. The electric generators are used on tricycles operating with IC engines for providing power to the refrigerating unit.

[004] CN105584406A discloses about a refrigerating unit as a wagon trolley for a transportation car completely powered by high power battery.
[005] In all the prior arts the absence of the fully electric vehicle with refrigerating unit to travel on narrow and uneven roads to reach the remote part of the country can be clearly seen.
[006] In order to overcome the problems, there is a need to develop the art that must be capable of carrying the medical as well as perishable edible goods safely to every part of the country with zero tail pipe emission.
OBJECTS OF THE INVENTION.
[007] The primary object of the invention is to serve the community of far-flung areas by transporting lifesaving pharmaceutical drugs in enhanced volumes at appropriate time.
[008] Another object of the present invention is to provide fully electric vehicle with the refrigerating unit in L5 segment that is capable of travelling narrow and rough roads.
[009] Yet another object of the present invention is to provide a 3W-EMV in L5 segment with a greater range and load carrying capacity to counteract the effect of inadequate charging stations.

SUMMARY OF THE INVENTION.
[010] The present invention aims to provide the refrigeration carriage integrated with the electric three wheeled vehicles in L5 segment to solve the existing
> problem. Both the refrigeration unit and the electric vehicle draws the power from
the battery of the vehicle. As the IC engine is replaced by the batteries the vehicle
is completely free from tail pipe emission.
[Oil] In order to meet the purpose, the invention is made with the following ) specification, the carriage of the vehicle is mounted on the chassis of the electric vehicle using a base frame structure. The base frame structure is a Z section made of mild steel is attached to the bottom of the carriage
[012] The side wall, front wall, roof and the floor of the carriage box is made of
> sandwich structures. The top and bottom face sheets are made up of grp and the
core layer consist of polyurethane foam (PUF). The surface of the floor is covered
with three aluminum checkered sheets to avoid the damage to the floor caused
by any sharp objects in the goods.
) [013] The door of the carriage is made of fiber reinforced plastic with plywood fitted with J Rubber gas Kit and stainless steel (SS) lockset to provide a proper insulation. The economically designed SS hinges allow the door to open up to 270 degree outward.
> [014] The external dimension of the carriage box is 1685x1475x1400 mm and
internal dimension of the carriage box is 1570x1360x1295 mm. The internal
volume of the carriage box is 2.78 m3.

[015] The refrigeration unit is designed economically to attain a better design,
improved performance, easy installation and service, and enhanced control using
microprocessors inside the driver cabin. >
[016] The cooling capacity of the refrigerating unit is 1340 watts and power
consumption is 700 watts. The coolant used in the refrigerating unit is R-134a.
The weight of condenser and evaporator assembly units are 24 kg and 16 kg,
respectively. )
[017] The motor assembly in the condenser is pull type with the air flow capacity
of 1350 m3/hr while the motor assembly in the evaporator is a backward curve
type with an airflow capacity of 700 m3/hr.
> [018] The electrical connections are made of automobile grade flame proof and
Water proof materials. The casing of the refrigerating unit is made of high
corrosive resistant materials like Galvanised iron (GI), plastic and fiber
reinforced plastic.
) [019] The temperature of Zero degree Celsius can be maintained inside the refrigerated carriage. Hence, almost all the food materials and pharmaceutical drugs can be transported safely.
[020] Though the power for the refrigerating unit is drawn from the high voltage
> battery of the vehicle, vehicle with a laden weight of 400 kg offers a remarkable
range of 80 km per charge and peak speed of 45 km per hour.

BREIF DISCRIPTION OF THE DRAWINGS.
[021] All the aforementioned parts and specifications are better understood with the appended figures (1-3). *
Figure 1. Isometric view of vehicle with refrigerated carriage box. Figure 2. Isometric view of the vehicle without refrigerated carriage box. Figure 3. Isometric view of the refrigerated carriage box without vehicle.
I DETAILED DESCRIPTION OF THE DRAWING.
[022] The refrigerated carriage is mounted on the chassis of the vehicle as shown in the figure 1. The vehicle has one front wheel and two rear wheels with the wheel base of 2120 mm as shown in figure 2. The condenser (cond refer unit) and evaporator (evap) are economically placed in the carriage to maintain the low temperature inside the carriage box as shown in figure 3. The front and roof walls of the carriage are made up of sandwich composite structures with grp has face sheets and PUF as a core layer to resist the bending due to impact on the walls. In addition to that, the sandwich composite layers also act as a thermal i insulator and provides a complete weather resistant from rain, dust and sunlight. The rear door of the carriage facilitates the loading and unloading of the goods from carriage. The seals in the rear door provides an air tight seal to the carriage. The stainless steel (ss) angle act as a support to all the side walls, roof, floor and door structures. The sandwich composite floor structure as shown in figure 3 is used to efficiently resist the bending load arise as a result of the weight of the goods loaded in the carriage. The hex bolt fastens carriage floor to the base frame that is mounted on the chassis of the vehicle.

We claim,

1. The refrigerated carriage in the three wheeled electric vehicles has the carriage volume of 2.78 m3 (1570x1360x1295 mm).
2. Three wheeled electric vehicles in the L5 segment with a battery capacity of 10.8 KWh providing power for both vehicle and refrigeration unit.
3. With a maximum payload of 400 kg, the vehicle offers a range of 80 km per charge.