Unmanned aerial vehicle power distribution circuit and unmanned aerial vehicle power distribution board

Abstract

The utility model discloses a kind of unmanned aerial vehicle distribution circuit, and distribution board with unmanned aerial vehicle distribution circuit is disclosed, wherein unmanned aerial vehicle distribution circuit includes power access end, control switch, first MOS tube, second MOS tube and electric governor interface module, electric governor interface module is connected in parallel by multiple electric governor interfaces, the positive terminal of power access end is connected with the input terminal of electric governor interface module and the first end of control switch respectively, the negative terminal of power access end is connected with the second end of control switch, the source of first MOS tube and the source of second MOS tube respectively, the third end of control switch is connected with the grid of first MOS tube and the grid of second MOS tube respectively, the output terminal of electric governor interface module is connected with the drain of first MOS tube and the drain of second MOS tube respectively.The energy consumption of unmanned aerial vehicle can be reduced while reducing production cost by the present application.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV power distribution circuit and a UAV power distribution board. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and onboard program control devices. From a technical perspective, they can be divided into: unmanned fixed-wing aircraft, unmanned vertical take-off and landing aircraft, unmanned helicopters, unmanned multi-rotor aircraft, etc. They are mainly used for aerial photography, agriculture, disaster relief, surveying and mapping, news reporting, power line inspection, etc.

[0003] Drones are generally powered by model aircraft power supplies, which then provide operating current to multiple ESCs via a power distribution board. In related technologies, the main method used is to distribute power using control chips, which has high production costs and requires additional power supply, thus increasing the drone's energy consumption. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a power distribution circuit for drones, which can reduce production costs while simultaneously reducing the energy consumption of drones.

[0005] This utility model also proposes a drone power distribution board having the above-mentioned drone power distribution circuit.

[0006] According to a first aspect of the present invention, a power distribution circuit for a drone includes: a power input terminal, a control switch, a first MOSFET, a second MOSFET, and an ESC interface module. The ESC interface module is composed of multiple ESC interfaces connected in parallel. The positive terminal of the power input terminal is connected to the input terminal of the ESC interface module and the first terminal of the control switch, respectively. The negative terminal of the power input terminal is connected to the second terminal of the control switch, the source of the first MOSFET, and the source of the second MOSFET, respectively. The third terminal of the control switch is connected to the gate of the first MOSFET and the gate of the second MOSFET, respectively. The output terminal of the ESC interface module is connected to the drain of the first MOSFET and the drain of the second MOSFET, respectively.

[0007] The power distribution circuit for drones according to the present invention has at least the following beneficial effects: when the first and third terminals of the control switch are connected, the first and second MOSFETs are turned on, and the external power supply powers the ESC interface module through the power input terminal; when the second and third terminals of the control switch are connected, the first and second MOSFETs are turned off, and the external power supply stops powering the ESC interface module through the power input terminal. By controlling the on and off of the two MOSFETs through the control switch, the function of high current output control can be achieved, and there is no need for a control chip to perform power distribution control, thereby reducing production costs and reducing the energy consumption of the drone.

[0008] According to some embodiments of the present invention, the UAV power distribution circuit further includes a light-emitting diode (LED), the negative terminal of which is connected to the drain of the first MOS transistor, the drain of the second MOS transistor, and the output terminal of the power-adjustable interface module, respectively, and the positive terminal of which is connected to the positive terminal of the power input terminal.

[0009] According to some embodiments of the present invention, the UAV power distribution circuit further includes a first resistor, the first end of which is connected to the negative terminal of the light-emitting diode, and the second end of which is connected to the drain of the first MOS transistor, the drain of the second MOS transistor, and the output terminal of the ESC interface module.

[0010] According to some embodiments of this utility model, the UAV power distribution circuit further includes a filter capacitor. The first end of the filter capacitor is connected to the positive terminal of the power input terminal, and the second end of the filter capacitor is connected to the second end of the first resistor, the drain of the first MOSFET, the drain of the second MOSFET, and the output terminal of the ESC interface module.

[0011] According to some embodiments of the present invention, the UAV power distribution circuit further includes a second resistor and a third resistor, the second resistor and the third resistor are connected in series to form a first branch, the first end of the first branch is connected to the positive terminal of the power input terminal, the second end of the first branch is connected to the negative terminal of the power input terminal, and the first end of the control switch is connected to the connection point of the second resistor and the third resistor.

[0012] According to some embodiments of the present invention, the UAV power distribution circuit further includes a fourth resistor, the first end of which is connected to the second end of the control switch, and the second end of which is connected to the negative terminal of the power input terminal.

[0013] According to a second aspect of the present invention, a drone power distribution board includes the drone power distribution circuit described in the first aspect. The drone power distribution board includes a substrate, the first MOS transistor and the second MOS transistor are located in a first region of the substrate, and the control switch and a plurality of the power-adjustable interfaces are evenly spaced along a second region of the substrate, the second region surrounding the first region.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0016] Figure 1 A circuit diagram of the unmanned aerial vehicle (UAV) power distribution circuit provided in the embodiments of this application;

[0017] Figure 2 This is a structural diagram of the drone power distribution board provided in an embodiment of this application. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figure 1 , Figure 1 A circuit diagram of the unmanned aerial vehicle (UAV) power distribution circuit provided in an embodiment of this application.

[0023] It is understood that the power distribution circuit of the UAV includes: a power input terminal 100, a control switch 200, a first MOSFET Q1, a second MOSFET Q2, and an ESC interface module 300. The ESC interface module 300 is composed of multiple ESC interfaces connected in parallel. The positive terminal of the power input terminal 100 is connected to the input terminal of the ESC interface module 300 and the first terminal of the control switch 200. The negative terminal of the power input terminal 100 is connected to the second terminal of the control switch 200, the source of the first MOSFET Q1, and the source of the second MOSFET Q2. The third terminal of the control switch 200 is connected to the gate of the first MOSFET Q1 and the gate of the second MOSFET Q2. The output terminal of the ESC interface module 300 is connected to the drain of the first MOSFET Q1 and the drain of the second MOSFET Q2. The ESC interface module 300 can be composed of 4, 6, or 8 ESC interfaces connected in parallel.

[0024] Specifically, the first MOSFET Q1 and the second MOSFET Q2 are model LR7843.

[0025] It should be noted that when the first and third terminals of control switch 200 are connected, the gates of the first MOSFET Q1 and the second MOSFET Q2 change from low to high, and both MOSFETs Q1 and Q2 are simultaneously turned on. External power supply then powers the ESC interface module 300 through power input terminal 100. When the second and third terminals of control switch 200 are connected, the gates of the first MOSFET Q1 and the second MOSFET Q2 change from high to low, and both MOSFETs Q1 and Q2 are simultaneously turned off. External power supply then stops powering the ESC interface module 300 through power input terminal 100. By controlling the on and off states of the two MOSFETs through control switch 200, high-current output control can be achieved without the need for a control chip for power distribution, thus reducing both production costs and the UAV's energy consumption.

[0026] It should be noted that the drone's power distribution circuit also includes an LED. The negative terminal of the LED is connected to the drain of the first MOSFET Q1, the drain of the second MOSFET Q2, and the output terminal of the ESC interface module 300, respectively. The positive terminal of the LED is connected to the positive terminal of the power input terminal 100. When the first MOSFET Q1 and the second MOSFET Q2 are both turned on, the LED and the power input terminal 100 form a complete current loop, and the LED lights up. Therefore, the user can use the LED to determine whether the ESC interface module 300 and the power input terminal 100 form a complete current loop.

[0027] It should be noted that the power distribution circuit of the drone also includes a first resistor R1. The first end of the first resistor R1 is connected to the negative terminal of the light-emitting diode, and the second end of the first resistor R1 is connected to the drain of the first MOSFET Q1, the drain of the second MOSFET Q2, and the output terminal of the ESC interface module 300.

[0028] It should be noted that the power distribution circuit of the drone also includes a filter capacitor C1. The first end of the filter capacitor C1 is connected to the positive terminal of the power input terminal 100. The second end of the filter capacitor C1 is connected to the second end of the first resistor R1, the drain of the first MOSFET Q1, the drain of the second MOSFET Q2, and the output terminal of the ESC interface module 300. By setting the filter capacitor C1, the AC ripple coefficient can be reduced while smoothing the DC output.

[0029] It should be noted that the power distribution circuit of the drone also includes a second resistor R2 and a third resistor R3. The second resistor R2 and the third resistor R3 are connected in series to form a first branch. The first end of the first branch is connected to the positive terminal of the power input terminal 100, and the second end of the first branch is connected to the negative terminal of the power input terminal 100. The first end of the control switch 200 is connected to the connection point of the second resistor R2 and the third resistor R3.

[0030] It should be noted that the power distribution circuit of the drone also includes a fourth resistor R4. The first end of the fourth resistor R4 is connected to the second end of the control switch 200, and the second end of the fourth resistor R4 is connected to the negative terminal of the power input terminal 100.

[0031] Reference Figure 2 , Figure 2 This is a structural diagram of the drone power distribution board provided in an embodiment of this application.

[0032] Understandably, the drone's power distribution board includes a substrate 400, with a first MOSFET Q1 and a second MOSFET Q2 located in a first region 420 of the substrate. A control switch 200 and multiple power-adjustable interfaces 310 are evenly spaced along a second region of the substrate, which surrounds the first region 420. By evenly distributing the control switch 200 and multiple power-adjustable interfaces 310 along the second region, the wiring of the power-adjustable interfaces is easier to manage, preventing incorrect wiring during drone assembly and adjustment.

[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A power distribution circuit for a drone, characterized in that, include: The system includes a power input terminal, a control switch, a first MOSFET, a second MOSFET, and an ESC interface module. The ESC interface module consists of multiple ESC interfaces connected in parallel. The positive terminal of the power input terminal is connected to the input terminal of the ESC interface module and the first terminal of the control switch. The negative terminal of the power input terminal is connected to the second terminal of the control switch, the source of the first MOSFET, and the source of the second MOSFET. The third terminal of the control switch is connected to the gate of the first MOSFET and the gate of the second MOSFET. The output terminal of the ESC interface module is connected to the drain of the first MOSFET and the drain of the second MOSFET.

2. The UAV power distribution circuit according to claim 1, characterized in that, The drone power distribution circuit also includes a light-emitting diode (LED). The negative terminal of the LED is connected to the drain of the first MOSFET, the drain of the second MOSFET, and the output terminal of the power-adjustable interface module, respectively. The positive terminal of the LED is connected to the positive terminal of the power input terminal.

3. The UAV power distribution circuit according to claim 2, characterized in that, The drone power distribution circuit also includes a first resistor, the first end of which is connected to the negative terminal of the light-emitting diode, and the second end of which is connected to the drain of the first MOS transistor, the drain of the second MOS transistor, and the output terminal of the ESC interface module.

4. The UAV power distribution circuit according to claim 3, characterized in that, The drone power distribution circuit also includes a filter capacitor. The first end of the filter capacitor is connected to the positive terminal of the power input terminal, and the second end of the filter capacitor is connected to the second end of the first resistor, the drain of the first MOS transistor, the drain of the second MOS transistor, and the output terminal of the ESC interface module.

5. The UAV power distribution circuit according to claim 1, characterized in that, The drone power distribution circuit also includes a second resistor and a third resistor, which are connected in series to form a first branch. The first end of the first branch is connected to the positive terminal of the power input terminal, and the second end of the first branch is connected to the negative terminal of the power input terminal. The first end of the control switch is connected to the connection point of the second resistor and the third resistor.

6. The UAV power distribution circuit according to claim 1, characterized in that, The drone power distribution circuit also includes a fourth resistor, the first end of which is connected to the second end of the control switch, and the second end of which is connected to the negative terminal of the power input terminal.

7. A power distribution board for a drone, characterized in that, The drone power distribution circuit includes any one of claims 1 to 6 above, wherein the drone power distribution board includes a substrate, the first MOS transistor and the second MOS transistor are located in a first region of the substrate, the control switch and the plurality of the ESC interfaces are evenly spaced along a second region of the substrate, and the second region surrounds the first region.

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