DESC:FIELD OF INVENTION
The present invention relates to a battery fixture assembly for unmanned aerial vehicle (UAV). More particularly, the present invention relates to a battery fixture assembly, which enables easy ingress and egress of battery in the UAV as per requirement. Advantageously, the present invention protects the battery from external impact.

BACKGROUND OF INVENTION
Generally, unmanned aerial vehicle (UAV) commonly known as a drone is an aircraft without a human pilot aboard. The flight of the UAVs may operate with various degrees of autonomy either under remote control by a human operator, or fully or intermittently autonomously by onboard computers. With the rapid increase in technology, UAVs are being used in a wide range of applications. A UAV, which differs widely from an aircraft, is in its best mode, when it is designed to be light in weight. It therefore becomes necessary that every component in the physical design of a UAV is of utmost importance in addition to its aerodynamic characteristics. A micro air vehicle (MAV) is a class of miniature UAVs that has a size restriction and may be autonomous.

The UAVs require constant attention for frequent changing of batteries due to long or intensive duration of flight. The conventional UAV have a battery set up, wherein the installation and removal of the battery is difficult and time consuming resulting in unnecessary time delay. Alternatively, if the UAV witness a bump or a collision during flight, the internal batteries due to the impact are often subjected to inertial force leading to the damage of the batteries.
Known in prior art is a vehicle base station comprising of a platform on which a vehicle may be positioned, a first battery bay located on a first side of the platform, a battery replacement assembly to remove a battery from the vehicle and to replace the battery with a new battery. The battery replacement assembly slides a battery from a first battery bay onto a battery receiver coupled to the vehicle and slides a battery from the battery receiver coupled to the vehicle onto the second battery bay. The battery receiver comprises a frame having a base which may be mounted to a vehicle. However, the battery replacement is complex process due to more number of components and further fails to protect the battery from external impact.
39310B1
US9139310 discloses systems and methods are provided for swapping the battery on an unmanned aerial vehicle (UAV) and on charging stations that provide energy required for on-flight travel. The UAV may be able to identify and land on an energy provision station autonomously. The UAV may take off and/or land on the energy provision station. The UAV may communicate with the energy provision station. The energy provision station may store and charge batteries for use on a UAV. However, this system does not constitute a lock free mechanism while housing the battery and involves complexity while removing the battery.

CN204632835 discloses many rotor unmanned aerial vehicle's battery mounting box. This utility model describes the battery case body housing for mounting battery and also describes set hollow out construction to in each side of battery mounting box, alleviated box body weight, set up the tightness that porous multislot does not influence the box body, the installing port department of box body sets up U type groove, facilitates the change of battery. However, this battery assembly does not constitute sliding feature and battery protection from its pre-fixed location.

Accordingly, there exists a need for battery fixture assembly, which enables easy ingress and egress of battery in the UAV as per requirement and protects the battery from external impact.

OBJECTS OF INVENTION
It is the primary object of the present invention to provide a battery fixture assembly, which enables easy ingress and egress of battery in the UAV as per requirement.

It is another object of the present invention to provide a battery fixture assembly, which protects the battery from external impact.

It is another object of the present invention to provide more robust and multi-component rigid fixture for battery assembly.

It is another object of the present invention to accommodate the battery in a battery holding plate.

It is another object of the present invention to facilitate trouble free replacement of battery.

It is another object of the present invention to provide locking free mechanism to avoid holding the battery in place.

It is another object of the present invention to completely slide in or slide out the battery.
It is another object of the present invention, wherein the battery is either fastened on to the battery holding plate through one or more slots or fixed to the battery holding plate.

It is another object of the present invention to reduce the weight of the battery holding plate.

It is another object of the present invention to provide ventilation for cooling the battery.

It is another object of the present invention to provide stacking of battery holding plates.

It is another object of the present invention to accommodate batteries of various sizes.

It is another object of the present invention to stack guide vane between the plates.

It is another object of the present invention to provide equivalent mass distribution of the battery fixture assembly.

It is another object of the present invention to limit the number of components for building battery fixture assembly, thereby curtails the weight of the assembly.

It is another object of the present invention to make the battery removal separately from the rotor base inessential.

It is another object of the present invention to provide high stiffness and lower weight to the battery fixture assembly.

It is another object of the present invention to provide support members as an integral part of the rotor base frame.
SUMMARY OF THE INVENTION
One or more of the problems of the conventional prior art may be overcome by various embodiments of the present invention.

It is primary aspect of the present invention, wherein a battery fixture assembly for easy ingress and egress in an unmanned aerial vehicle (UAV) comprising of:
at least two support members positioned parallel to each other;
at least two guide vanes;
battery holding plate; and
one or more slots,
wherein the said guide vane is positioned between the said support members on either sides,
wherein width of the said guide vane is less than width of the said support member for the battery holding plate to slide between the said support members through the guide vanes,
wherein the said support members on either sides are symmetrical to each other about the roll axis of the rotor base frame, and
wherein the said battery holding plate accommodating a battery provides complete slide-in and slide-out of the supporting members through the guide vanes.

It is another aspect of the present invention, wherein the battery is optionally fastened to the battery holding plate vide the slots.
It is another aspect of the present invention, wherein rear end of the battery holding plate is fixed to an additional plate stacked below the battery fixture assembly.

It is another aspect of the present invention, wherein the said support member comprises of:
upper support plate; and
lower support plate,
wherein the upper support plate and lower support plate are placed on either side of the battery.

It is another aspect of the present invention, wherein the said guide vane is stacked between the said battery holding plates.

It is another aspect of the present invention, wherein the said support members have uniform dimensions.

It is another aspect of the present invention, wherein the said guide vanes have same dimensions as that of the said support members except the width.

It is another aspect of the present invention, wherein the said support members are fastened through the said one or more slots to accommodate equivalent mass distribution of the battery fixture assembly.

It is another aspect of the present invention, wherein the said support members and the rotor base frame of the UAV are secured by same set of fasteners.

It is another aspect of the present invention, wherein the battery fixture assembly is preferably made of carbon fiber material.

BRIEF DESCRIPTION OF DRAWINGS:
So that the manner in which the features, advantages and objects of the invention, as well as others which will become apparent, may be understood in more detail, more particular description of the invention briefly summarized above may be had by reference to the embodiment thereof which is illustrated in the appended drawings, which form a part of this specification. It is to be noted, however, that the drawings illustrate only a preferred embodiment of the invention and is therefore not to be considered limiting of the invention's scope as it may admit to other equally effective embodiments.
Figure 1: illustrates battery fixture assembly according to the present invention.
Figure 2: illustrates battery holding plate in the battery fixture assembly according to the present invention.
Figure 3: illustrates support plates in the battery fixture assembly according to the present invention.
Figure 4: illustrates guide vanes in the battery fixture assembly according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION WITH REFERENCE TO THE ACCOMPANYING FIGURES
The present invention as herein described relates to a battery fixture assembly, which allows effortless ingress and egress of battery in the UAV as per requirement. It also protects the battery from external impact.
Referring to figure 1, a fixture holding a battery provides easy sliding or trouble free ingress and egress of battery for replacing the batteries post completion of the entire flight duration. A battery fixture assembly in an unmanned aerial vehicle (UAV) comprising: at least two support members [1], at least two guide vanes [2], battery holding plate [3], one or more slots [4]. The two support members [1] positioned parallel to each other. The support member [1] comprises of upper support plates [1a] and lower support plates [1b]. The upper support plates [1a] and lower support plates [1b] are placed on either side of the battery. The said support members [1] have uniform dimensions i.e. length, width and thickness. The support members [1] on either side are symmetrical to each other about the roll axis of the rotor base frame. The upper support plate [1a] on the left is symmetrical to the upper support plate on the right about the roll axis of the quad-rotor. Similarly, the lower support plate [1b] on the left is symmetrical to the lower support plate on the right about the roll axis of the quad-rotor. The guide vane [2] is positioned between the said support members [1] on either sides of the battery holding plate. The support members [1] and the guide vane [2] have uniform dimensions excluding the width. The width of the guide vane [2] is less than that of the support members [1]. The battery is accommodated in the battery holding plate [3]. The battery fixture assembled in such a way that the battery holding plate [3] provides complete slide-in and slide-out of the supporting member [1] through guide vanes [2]. The battery holding plate slides through space between left and right support plates and supported by the guide vanes. This assembly permits easy ingress and egress of the battery with the battery holding plate [3]. The battery need not be removed separately from the rotor base frame. The battery can also be free from locking mechanism to avoid being secured at a fixed place. The guide vane [2] is stacked between the said battery holding plates. The battery fixture assembly can accommodate wide range of batteries of various sizes of length, width and depth in the range of 180 mm to 195 mm, 70 mm to 95 mm and 50 mm to 65 mm respectively owing to stacking of battery holding plates [3].

The assembly is designed to accommodate equivalent mass distribution of the entire fixture. The assembly is provided with symmetrical slots [4] either side of the battery holding plate to reduce the weight of the plate The assembly also connects the fixture to the main body by means of same set of fasteners to avoid unnecessary joining parts which can cause an increase in All-up-weight. The support members [1] and the rotor base frame of the UAV are fastened using fasteners through the provided slots [4] to minimize the weight. The rear end of the battery support plate is bolted to an additional plate stacked below the fixture assembly. The slots [4] in the battery holding plate [3] in addition facilitates air cooling to the battery. The battery is tightened to battery holding plate using adhesives like velcro tape at the front as well as rear end. The battery holding plate [3] can accommodate any (Lithium Polymer) Li-Po battery. The battery fixture assembly is made of carbon fiber sheet and manufacturing using water jet machining as required. The battery fixture assembly made of carbon fiber material provides high stiffness and lower weight.

Although the invention has been described with reference to specific embodiments, these descriptions are not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternative embodiments of the invention will become apparent to persons skilled in the art upon reference to the description of the invention. It should be appreciated by those skilled in the art that the conception and the specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present invention. It should also be realized by those skilled in the art that such equivalent constructions do not depart from the spirit and scope of the invention as set forth in the appended claims. It is therefore, contemplated that the claims will cover any such modifications or embodiments that fall within the true scope of the invention.

,CLAIMS:WE CLAIM:
1. A battery fixture assembly for easy ingress and egress in an unmanned aerial vehicle (UAV) comprising of:
at least two support members [1] positioned parallel to each other;
at least two guide vanes [2];
battery holding plate [3]; and
one or more slots [4],
wherein the said guide vane [2] is positioned between the said support members [1] on either sides,
wherein width of the said guide vane [2] is less than width of the said support member [1] for the said battery holding plate [3] to slide between the said support members [1] through the said guide vanes [2],
wherein the said support members [1] on either sides are symmetrical to each other about the roll axis of the rotor base frame, and
wherein the said battery holding plate [3] accommodating battery provides complete slide-in and slide-out of the said supporting members [1] through the said guide vanes [2].

2. The battery fixture assembly as claimed in claim 1, wherein the battery is optionally fastened to the battery holding plate [3] vide the slots.

3. The battery fixture assembly as claimed in claim 1, wherein rear end of the battery holding plate [3] is fixed to an additional plate stacked below the battery fixture assembly.

4. The battery fixture assembly as claimed in claim 1, wherein the said support member [1] comprises of:
upper support plate[1a]; and
lower support plate [1b],
wherein the said upper support plate [1a] and lower support plate [1b] are placed on either side of the battery.

5. The battery fixture assembly as claimed in claim 1, wherein the said guide vane [2] is stacked between the said battery holding plates [3].

6. The battery fixture assembly as claimed in claim 1, wherein the said support members [1] have uniform dimensions.

7. The battery fixture assembly as claimed in claim 1, wherein the said guide vanes [2] have same dimensions as that of the said support members [1] except the width.

8. The battery fixture assembly as claimed in claim 1, wherein the said support members [1] are fastened through the said one or more slots [4] to accommodate equivalent mass distribution of the battery fixture assembly.

9. The battery fixture assembly as claimed in claim 8, wherein the said support members [1] and the rotor base frame of the UAV are secured by same set of fasteners.

10. The battery fixture assembly as claimed in claim1, wherein the battery fixture assembly is preferably made of carbon fiber material.