Integrated Battery Motor Control for Rotary Machine Gun
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Solution Overview
Problem
Conventional electrically driven miniguns require external battery packs and heavy cabling, leading to weight and space constraints, reduced reliability, and limited control over firing rates.
Innovation Solution
An electrically driven rotary machine gun with an onboard power source and a motor control unit that allows for an infinitely variable rate of fire, eliminating the need for external power sources and cabling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If an external battery pack and cabling are used to power the minigun, then the gun can be powered, but the weight and space requirements increase
Solution Approach 1:
The patent combines the battery pack, motor control unit, and power distribution system into an integrated assembly that is directly mounted to the minigun structure. This merging eliminates the need for separate external battery packs and extensive cabling, thereby reducing overall weight while maintaining full power supply capability to the drive motor, solenoid, and booster motor.
2Power
If an external battery pack and cabling are used to power the minigun, then the gun can be powered, but the space requirements increase
Solution Approach 1:
The battery pack, motor control unit, and associated components are merged into a single integrated assembly that consolidates previously separate space-consuming elements. This integration significantly reduces the volume occupied by power supply systems while maintaining full operational capability.
3Productivity
If full power is provided to all components simultaneously upon activation, then the gun can fire immediately, but the system complexity and power management difficulty increase
Solution Approach 1:
The motor control unit is programmed to automatically execute a predetermined power distribution sequence upon activation. It first activates the drive motor to rotate the rotor, then sequentially activates the solenoid to engage the clutch and the booster motor to advance ammunition. This preliminary programming of the power sequence simplifies the control system while ensuring all components receive power in the correct order for immediate firing capability.
4Productivity
If a conventional two-position switch is used for rate of fire selection, then the gun can operate at fixed rates, but the control flexibility and adaptability are limited
Solution Approach 1:
The motor control unit dynamically adjusts the power delivered to the drive motor based on the position of the trigger or control input. As the trigger is pulled further back, the control unit increases the motor speed and corresponding rate of fire continuously, rather than switching between fixed discrete rates. This dynamic control provides infinitely variable rate of fire adjustment, significantly enhancing adaptability while maintaining high productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The integrated power source and variable rate control enhance the minigun's reliability, reduce weight and space requirements, and provide greater operational flexibility, enabling independent operation without reliance on external power systems.
Implementation Method 1
The motor control unit includes an integrated battery
Implementation Method 2
The drive motor is configured to rotate a rotor of the gun when receiving power
Data Source
AI summary
An electrically driven machine gun can include a drive motor, a feeder delinker, a clutch, and a motor control unit. The drive motor is configured to rotate a rotor of the gun when receiving power. The feeder delinker is configured to provide ammunition cartridges to the rotor while being rotated. The rotor fires the ammunition cartridges while receiving them from the feeder delinker and being rotated by the drive motor. The clutch is configured to selectively engage the rotor and the feeder delinker while actuated. The motor control unit is configured to receive input from a user and provide power to the drive motor as a function of the input received from the user and to actuate the clutch while providing power to the drive motor. The motor control unit includes a battery to eliminate the necessity of an external power supply.