Unmanned aerial vehicle motor radiator driving device

Abstract

The utility model discloses a driving device for a motor radiator of an unmanned aerial vehicle. The driving device comprises a motor body and a control part, the motor body is composed of a machine shell, a stator component, a rotor component and a rotating shaft connected with the rotor component, a fan impeller used for cooling the liquid cooling device is installed at the free end of the rotating shaft, and a rear end cover is installed on the right side of the machine shell. The control component comprises a Hall component, a control board and a driving board which are mounted on the right side wall of the rear end cover; according to the utility model, motor, control and DC-to-AC driving functions are integrated, a driving device which is stable in rotating speed and can adjust the rotating speed to be high or low can be formed, and the driving device can be embedded in a radiator shell, has the characteristics of low weight, small size and low cost, and can circularly radiate the liquid cooling device of the generator of the unmanned aerial vehicle in real time.

Description

Technical Field

[0001] The utility model relates to the field of engine heat dissipation facilities of unmanned aerial vehicle systems, in particular to a motor radiator driving device for unmanned aerial vehicles. Background Art

[0002] The UAV system mainly includes the aircraft body, flight control system, data link system, launch and recovery system, power supply system, etc. The engine of the UAV often generates high temperature heat during use. In order to cool down the engine and dissipate the heat, it is necessary to add an additional cooling system to the engine of the UAV system. Currently, liquid cooling devices are mostly used to dissipate the heat of the UAV engine; however, nowadays, the control of the UAV liquid cooling device is mostly through the driver. The UAV liquid cooling device drivers on the market have single functions, large size and high cost. Therefore, a UAV motor radiator drive device is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a UAV motor radiator driving device to solve the problems of large volume and high cost proposed in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A UAV motor radiator driving device, comprising:

[0006] The motor body is composed of a housing, a stator component, a rotor component, and a rotating shaft connected to the rotor component, a fan impeller for dissipating heat from the liquid cooling device is installed at the free end of the rotating shaft, and a rear end cover is installed on the right side of the housing;

[0007] A control component, wherein the control component comprises a Hall component, a control board and a drive board installed on the right side wall of the rear end cover, and the Hall component is used to receive a Hall signal of the motor;

[0008] Among them, the control board is embedded with input filtering circuit, anti-reverse connection circuit, current limiting circuit, auxiliary power conversion circuit, pulse width modulation circuit, logic synthesis circuit, speed state selection circuit and fault alarm circuit; the drive board is embedded with drive circuit, energy storage circuit and inverter circuit.

[0009] Furthermore, the input filter circuit, anti-reverse connection circuit, current limiting circuit, auxiliary power conversion circuit, pulse width modulation circuit, and logic synthesis circuit are connected in series in sequence, and the output end of the logic synthesis circuit is connected to the fault alarm circuit.

[0010] Furthermore, an input end of the logic synthesis circuit is connected to the speed state selection circuit, and the logic synthesis circuit is used to receive a PWM signal sent by a pulse width modulation circuit.

[0011] Furthermore, the auxiliary power conversion circuit and the logic integrated circuit are both connected to the motor body, and the auxiliary power conversion circuit supplies power to the motor body through the Hall component.

[0012] Furthermore, the drive circuit and the energy storage circuit are both connected to the inverter circuit, the input end of the drive circuit is connected to the logic synthesis circuit, and the inverter circuit is connected to the current limiting circuit, and the inverter circuit transmits three-phase power to the motor body.

[0013] The beneficial effects of the utility model are:

[0014] The utility model integrates the driving functions of motor, control and DC to AC conversion, can form a driving device with stable speed and adjustable speed to high or low speed, can be embedded in the radiator housing, has the characteristics of low weight, small volume and low cost, can circulate heat to the liquid cooling device of the UAV generator in real time, improves the heat dissipation effect of the liquid cooling device, and is conducive to the promotion and use of the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural cross-sectional view of the driver of the embedded UAV liquid cooling device of the utility model;

[0016] Figure 2 This is a principle block diagram of the utility model embedded UAV liquid cooling device driver.

[0017] In the figure: 1 motor body, 2 rotating shaft, 3 bearing, 4 rotor component, 5 stator component, 6 rear end cover, 7 Hall component, 8 control board, 801 input filter circuit, 802 anti-reverse connection circuit, 803 current limiting circuit, 804 auxiliary power conversion circuit, 805 pulse width modulation circuit, 806 logic synthesis circuit, 807 speed state selection circuit, 808 fault alarm circuit, 9 drive board, 901 drive circuit, 902 energy storage circuit, 903 inverter circuit, 10 fan impeller. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2, which provides a technical solution for the utility model, a UAV motor radiator drive device, including a motor body 1 and a control component; the motor body 1 is composed of a casing, a stator component 5, a rotor component 4, and a rotating shaft 2 connected to the rotor component 4, a fan impeller 10 for dissipating heat from a liquid cooling device is installed at the free end of the rotating shaft 2, a bearing 3 is provided on the shaft body of the rotating shaft 2, and a rear end cover 6 is installed on the right side of the casing; the control component mentioned includes a Hall component 7 installed on the right side wall of the rear end cover 6, a control board 8 and a drive board 9, and the Hall component 7 is used to receive the motor Hall signal;

[0020] In this embodiment, the control board 8 is embedded with an input filter circuit 801, an anti-reverse connection circuit 802, a current limiting circuit 803, an auxiliary power conversion circuit 804, a pulse width modulation circuit 805, a logic synthesis circuit 806, a speed state selection circuit 807 and a fault alarm circuit 808; the drive board 9 is embedded with a drive circuit 901, an energy storage circuit 902 and an inverter circuit 903; wherein the input filter circuit 801, the anti-reverse connection circuit 802, the current limiting circuit 803, the auxiliary power conversion circuit 804, the pulse width modulation circuit 805, and the logic synthesis circuit 806 are connected in series in sequence, and the output end of the logic synthesis circuit 806 is connected to the fault alarm circuit The input end of the logic synthesis circuit 806 is connected to the speed state selection circuit 807, and the logic synthesis circuit 806 is used to receive the PWM signal sent by the pulse width modulation circuit 805; the auxiliary power conversion circuit 804 and the logic synthesis circuit 806 are both connected to the motor body 1, and the auxiliary power conversion circuit 804 supplies power to the motor body 1 through the Hall component 7; the drive circuit 901 and the energy storage circuit 902 are both connected to the inverter circuit 903, and the input end of the drive circuit 901 is connected to the logic synthesis circuit 806, and the inverter circuit 903 is connected to the current limiting circuit 803, and the inverter circuit 903 transmits three-phase power to the motor body 1.

[0021] The embedded UAV liquid cooling device driver integrates a brushless DC motor and a controller to form an integrated structure embedded in the driver, uses low voltage for voltage inversion, and the motor speed can be adjusted in selectable gears. The DC / DC auxiliary power conversion circuit, motor control, inverter components and electromagnetic filtering are integrated into a PCB component. The controller and the motor are integrated into a brushless DC motor, and the motor is embedded in the external fan housing; it uses 28V power supply, and 28V is connected to the input filter circuit 801. The open-loop control method of the brushless DC motor is integrated, and the motor speed is divided into a high speed gear and a low speed gear, which can be set and selected through the speed state selection circuit 807. The motor and the control part are integrated into one, and then embedded in the heat dissipation device to drive the fan impeller 10 to rotate to dissipate heat from the liquid cooling device of the UAV engine.

[0022] In summary: the embedded UAV liquid cooling device driver has low-voltage power supply, embedded motor integration, and low-cost components. It achieves a small weight and low-cost design based on the existing brushless motor and optimizes electromagnetic compatibility.

Claims

1. A UAV motor radiator driving device, characterized in that: include: The motor body is composed of a housing, a stator component, a rotor component, and a rotating shaft connected to the rotor component, a fan impeller for dissipating heat from the liquid cooling device is installed at the free end of the rotating shaft, and a rear end cover is installed on the right side of the housing; A control component, wherein the control component comprises a Hall component, a control board and a drive board installed on the right side wall of the rear end cover, and the Hall component is used to receive a Hall signal of the motor; Among them, the control board is embedded with input filtering circuit, anti-reverse connection circuit, current limiting circuit, auxiliary power conversion circuit, pulse width modulation circuit, logic synthesis circuit, speed state selection circuit and fault alarm circuit; the drive board is embedded with drive circuit, energy storage circuit and inverter circuit.

2. The UAV motor radiator driving device according to claim 1, characterized in that: The input filter circuit, the anti-reverse connection circuit, the current limiting circuit, the auxiliary power conversion circuit, the pulse width modulation circuit, and the logic synthesis circuit are connected in series in sequence, and the output end of the logic synthesis circuit is connected to the fault alarm circuit.

3. The UAV motor radiator driving device according to claim 1, characterized in that: The input end of the logic synthesis circuit is connected to the speed state selection circuit, and the logic synthesis circuit is used to receive the PWM signal sent by the pulse width modulation circuit.

4. The UAV motor radiator driving device according to claim 1, characterized in that: The auxiliary power conversion circuit and the logic integrated circuit are both connected to the motor body, and the auxiliary power conversion circuit supplies power to the motor body through the Hall component.

5. The UAV motor radiator driving device according to claim 1, characterized in that: The driving circuit and the energy storage circuit are both connected to the inverter circuit. The input end of the driving circuit is connected to the logic synthesis circuit, and the inverter circuit is connected to the current limiting circuit. The inverter circuit transmits three-phase power to the motor body.

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