Flight control avionics module for plant protection unmanned aerial vehicle
By adopting insulated isolation and double-sided heat dissipation structures in the flight control avionics module of the plant protection drone, the problems of low heat dissipation efficiency and damage to the conductive circuit are solved, and the efficient heat dissipation and waterproof performance of the electronic control module is achieved to ensure the stable operation of the drone in extreme weather.
Patent Information
- Application Number
- CN202422453394.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-10-11
AI Technical Summary
The control modules of existing plant protection drones have low heat dissipation efficiency, which can easily damage the internal electronic components of the electronic control module due to conductive circuits, and their performance is limited when operating in extreme weather.
Insulated isolation components are used to isolate the metal frame and the front splitter assembly, and a waterproof sealing structure and double-sided heat dissipation components are set up, including a heat dissipation boss and a thermally conductive silicon wafer to avoid invasion of conductive circuits and water vapor, and improve heat dissipation efficiency and waterproof performance.
It realizes efficient heat dissipation of the electronic control module, extends service life, protects internal electronic devices, and ensures normal operation in extreme weather.
Smart Images
Figure CN223207430U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plant protection UAVs, and in particular to a flight control avionics module for a plant protection UAV. Background Art
[0002] A plant protection drone is an unmanned aerial vehicle specifically used for agricultural plant protection. It integrates aircraft technology, remote sensing technology, navigation and positioning technology, and agricultural pesticide application technology, providing modern agricultural production with an efficient, environmentally friendly, and precise means of pest and disease control.
[0003] A drone's control module, also known as the flight control system, is a core component responsible for stable flight and autonomous or semi-autonomous control. Many existing agricultural drones require a control system for real-time data collection, processing, command execution, and feedback adjustments during flight. This results in significant heat generation during operation. Existing drone control modules mostly use single-sided heat dissipation, which is inefficient for the high-power, continuous operation of the electronic control module, resulting in poor heat dissipation and a shortened service life.
[0004] At the same time, the existing technology for installing the front distribution board assembly of the electronic control module is mostly directly fixed on the metal frame. Since the distribution board assembly and the metal frame need to have a certain structural strength, they are mostly made of metal materials. When used in combination, it is easy to form a conductive loop, which can easily cause damage to the electronic components inside the electronic control module.
[0005] To improve the efficiency of agricultural drones or avoid operation in extreme weather conditions (such as high daytime temperatures in Southeast Asia during the summer), a flight control and avionics module for agricultural drones has been developed. Utility Model Content
[0006] The purpose of the present invention is to solve the above problems and to propose a flight control avionics module for a plant protection UAV.
[0007] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a flight control avionics module for a plant protection UAV, comprising a metal frame and an electronic control module, a front breakout board assembly being installed at the front end of the metal frame, and an insulating isolation component being provided between the front breakout board assembly and the metal frame;
[0008] An electric control module is installed inside the front branch board assembly. A waterproof sealing structure is provided at the joint between the front branch board assembly and the electric control module. Heat dissipation components are provided on both the front and rear sides of the electric control module.
[0009] Preferably, the electronic control module includes a receiver module, a flight control module and an isolation module. A guide screw column is fixed on the back of the front branch board assembly. The front branch board assembly and the electronic control module are tightened and fixed by screws passing through the guide screw column.
[0010] Preferably, the insulating isolation component is an injection molded part provided on the front and rear sides of the front junction board assembly and capable of being plugged into each other, and a mounting hole is formed in the front junction board assembly to cooperate with the injection molded part to penetrate through.
[0011] Preferably, the injection molded parts are composed of a baffle and a sleeve, and the injection molded parts located at the front and rear sides of the front branch board assembly can be plugged into each other through sleeves with different inner diameters.
[0012] Preferably, the mounting hole is composed of a circular ring abutted by a matching baffle and a circular hole penetrated by a matching sleeve, and the front branching plate assembly is fixed to the metal frame by bolts penetrating the injection molded part, so that the metal frame and the front branching plate assembly are insulated and separated by the injection molded part.
[0013] Preferably, the waterproof sealing structure includes a sealing rib formed on the rear side of the front branch board assembly, and a sealing groove formed in the electronic control module to cooperate with the sealing rib for insertion. A sealing ring is embedded in the sealing rib, and when the sealing rib is embedded in the sealing groove, the end of the sealing rib presses the sealing ring.
[0014] Preferably, a concave point and a convex point for fitting and clamping are formed on the side where the sealing rib and the sealing groove are in contact with each other.
[0015] Preferably, the heat dissipation component includes a heat dissipation boss fixed at the rear end of the front distribution board assembly and attached to the front end surface of the receiver module, and a thermally conductive silicon chip installed at the rear end of the electronic control module. The rear end of the electronic control module is formed with a groove for fitting the thermally conductive silicon chip.
[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0017] 1. In this application, the heat dissipation component is used to quickly dissipate the heat generated by the electronic control module during use, thereby facilitating the long-term operation of the electronic control module and improving the overall life of the electronic control module through double-sided heat dissipation.
[0018] 2. In this application, the provision of injection molded parts can avoid forming a conductive loop between the metal frame and the front distribution board assembly, so that an arc is generated inside the electronic control module when it is powered on, thereby protecting the various electronic components in the electronic control module during use.
[0019] 3. In this application, the sealing ribs are embedded in the sealing grooves, so that the joint between the front distribution board assembly and the electronic control module is a zigzag seam. When the sealing ribs press the sealing ring in the sealing groove, it can effectively prevent water vapor from penetrating through the connection gap. The convex and concave points on the installation positions of each sealing ring prevent the sealing ring from falling off during installation, thereby effectively improving the installation convenience and waterproof reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 Shows a schematic diagram of the overall installation of an avionics module provided according to an embodiment of the present utility model;
[0021] Figure 2 A schematic diagram of an exploded structure of an avionics module provided according to an embodiment of the present invention is shown;
[0022] Figure 3 A schematic diagram of the back structure of a front distribution board assembly provided according to an embodiment of the present utility model is shown;
[0023] Figure 4 A front structural schematic diagram of a receiver module, a flight control module, and an isolation module provided according to an embodiment of the present utility model is shown;
[0024] Figure 5 The figure shows a schematic diagram of the back structure of the receiver module, the flight control module and the isolation module provided according to an embodiment of the present utility model.
[0025] Legend:
[0026] 1. Front breakout board assembly; 101. Guide screw column; 102. Sealing rib; 103. Heat dissipation boss; 104. Mounting hole; 105. Concave point; 2. Injection molded part; 3. Receiver module; 4. Flight control module; 5. Isolation module; 501. Sealing groove; 502. Bump; 6. Thermally conductive silicon wafer; 7. Metal frame; 8. Groove. DETAILED DESCRIPTION
[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0028] See also Figure 1-5 The utility model provides a technical solution: a flight control avionics module for a plant protection UAV, comprising a metal frame 7 and an electronic control module, a front branching board assembly 1 being installed at the front end of the metal frame 7, and an insulating isolation component being provided between the front branching board assembly 1 and the metal frame 7.
[0029] The metal frame 7 and the front distribution board assembly 1 are both made of metal materials with good strength. By setting up the insulating isolation components, it is possible to avoid forming a conductive loop between the metal frame 7 and the front distribution board assembly 1, so that an arc is generated inside the electronic control module when it is powered on, thereby playing a protective role when the electronic control module is in use.
[0030] An electric control module is installed inside the front branch board assembly 1. A waterproof sealing structure is provided at the joint between the front branch board assembly 1 and the electric control module. Heat dissipation components are provided on both the front and rear sides of the electric control module.
[0031] The waterproof sealing structure seals the gap between the electronic control module and the front distribution board assembly 1, preventing moisture from penetrating through the gap and coming into contact with the electrical components within the electronic control module, thus providing waterproof protection for the electronic control module. The heat dissipation component is used to quickly dissipate heat generated by the electronic control module during use, thereby facilitating long-term operation of the electronic control module.
[0032] Specifically, such as Figure 1-3 As shown, the electronic control module includes a receiver module 3, a flight control module 4 and an isolation module 5. A guide screw column 101 is fixed on the back of the front branch board assembly 1. The front branch board assembly 1 and the electronic control module are fixed by screws passing through the guide screw column 101.
[0033] The drone's receiver module is primarily responsible for receiving signals from the ground control station or remote controller, including control commands, flight data, and other operational information. It converts the electromagnetic wave signals received by the antenna into electrical signals and decodes them so that the flight control system can understand and execute them.
[0034] The flight control module 4 of a drone, also known as the flight control system, is the "brain" of the drone, responsible for the drone's stable flight and autonomous or semi-autonomous control. It not only determines the drone's flight performance, but also affects flight safety.
[0035] Isolation modules for drones are components used to isolate different electronic modules or subsystems within a drone system to ensure signal integrity, safety, and stability. Isolation modules are particularly important in drone flight control and avionics modules, as they help prevent electrical interference, voltage transients, and fault propagation, thereby protecting the drone's critical systems.
[0036] The electronic control module is provided with a hole for the guide screw column 101 to penetrate. The setting of the guide screw column 101 improves the stability of the screw when it is tightened, and avoids the phenomenon that the screw deviates from the thread and cannot be tightened when it is tightened.
[0037] Specifically, such as Figure 1-3As shown, the insulating isolation component is an injection molded part 2 provided on the front and rear sides of the front junction board assembly 1 and capable of being plugged into each other. A mounting hole 104 is formed in the front junction board assembly 1 to fit through the injection molded part 2 .
[0038] The injection molded part 2 is made of plastic injection molding and has no conductivity. It is used to block between the front branch board assembly 1 and the metal frame 7 to prevent a conductive loop from being formed between the front branch board assembly 1 and the metal frame 7 .
[0039] The injection molded part 2 is composed of a baffle and a sleeve. The injection molded parts 2 located at the front and rear sides of the front branch board assembly 1 can be plugged into each other through sleeves with different inner diameters.
[0040] The mounting hole 104 is composed of a circular ring that abuts against the matching baffle and a circular hole that the matching sleeve passes through. The front branch board assembly 1 is fixed to the metal frame 7 by bolts passing through the injection molded part 2, so that the metal frame 7 and the front branch board assembly 1 are insulated and separated by the injection molded part 2.
[0041] The retaining plate of the injection molded part 2 at the front end of the front junction board assembly 1 abuts against the head of the bolt, and the retaining plate of the injection molded part 2 at the rear end of the front junction board assembly 1 abuts against the outer surface of the metal frame 7, thereby separating the front junction board assembly 1 and the metal frame 7. When the injection molded parts 2 on the front and rear sides of the front junction board assembly 1 are inserted into the mounting holes 104 in a facing direction, the sleeves on the front and rear sides are in a mutually plugged state.
[0042] Specifically, such as Figure 3-5 As shown, the waterproof sealing structure includes a sealing rib 102 formed on the rear side of the front branch board assembly 1, and a sealing groove 501 formed in the electronic control module to cooperate with the sealing rib 102 for insertion. A sealing ring is embedded in the sealing rib 102. When the sealing rib 102 is embedded in the sealing groove 501, the end of the sealing rib 102 presses the sealing ring.
[0043] When the front branch board assembly 1 is docked and assembled with the electronic control module, the sealing rib 102 fixed on the rear side of the front branch board assembly 1 is embedded in the sealing groove 501, so that the docking point between the front branch board assembly 1 and the electronic control module is a zigzag seam, thereby increasing the difficulty of water vapor entering the electronic control module through the connection gap, and when the sealing rib 102 is inserted into the sealing groove 501, the front end of the sealing rib 102 fits tightly with the sealing ring in the sealing groove 501, further improving the connection sealing between the front branch board assembly 1 and the electronic control module, thereby improving the waterproof performance of the equipment.
[0044] On one side where the sealing rib 102 and the sealing groove 501 are in contact with each other, a concave point 105 and a convex point 502 for fitting and clamping are formed.
[0045] The concave points 105 and the convex points 502 are distributed circumferentially along the side wall of the sealing rib 102 or the inner wall of the sealing groove 501. The transition fit between the convex points 502 and the concave points 105 on each sealing ring installation position prevents the sealing ring from falling off during installation, effectively improving the installation convenience and waterproof reliability of the product.
[0046] Specifically, such as Figure 2-5 As shown, the heat dissipation component includes a heat dissipation boss 103 fixed to the rear end of the front branch board assembly 1 and attached to the front end surface of the receiver module 3, and a thermally conductive silicon chip 6 installed at the rear end of the electronic control module. The rear end of the electronic control module is formed with a groove 8 for fitting the thermally conductive silicon chip 6.
[0047] Heat is transferred from the high-temperature area (receiver module 3) to the low-temperature area (heat dissipation boss 103) through direct contact. Heat dissipation boss 103 is typically made of a material with high thermal conductivity (such as aluminum or copper), which effectively conducts heat from the components to the heat dissipation boss 103. Once the heat dissipation boss 103 has absorbed sufficient heat, it transfers it to the surrounding air through convection. During drone flight, this convection is natural. During convection, the temperature difference between the surface of the heat dissipation boss 103 and the air drives the heat transfer.
[0048] The thermally conductive silicon sheet 6 has excellent thermal conductivity and insulation properties, effectively reducing contact thermal resistance while also providing insulation, shock absorption, and sealing. The thermally conductive filler contained in the thermally conductive silicone sheet, such as metal oxides or nitrides with high thermal conductivity, provides an efficient heat conduction path, quickly transferring heat to the other side of the silicone sheet. This enables efficient and rapid heat dissipation of the electronic control module.
[0049] Since the receiver module 3 generates a lot of heat during normal use, the heat generation of the receiver module 3 can be effectively reduced by arranging the heat dissipation boss 103 and the heat-conducting silicon chip 6 on the front and back sides of the receiver module 3 respectively.
[0050] The above description of the embodiments is intended to enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A flight control avionics module for a plant protection UAV, comprising a metal frame (7) and an electronic control module, characterized in that: A front wiring board assembly (1) is installed at the front end of the metal frame (7), and an insulating isolation component is provided between the front wiring board assembly (1) and the metal frame (7); An electric control module is installed inside the front branch board assembly (1); a waterproof sealing structure is provided at the joint between the front branch board assembly (1) and the electric control module; and heat dissipation components are provided on both the front and rear sides of the electric control module.
2. The flight control avionics module for a plant protection UAV according to claim 1, characterized in that: The electric control module comprises a receiver module (3), a flight control module (4) and an isolation module (5); a guide screw column (101) is fixedly provided on the back of the front branch board assembly (1); the front branch board assembly (1) and the electric control module are fixed by screws passing through the guide screw column (101).
3. The flight control avionics module for a plant protection UAV according to claim 1, characterized in that: The insulating isolation component is an injection molded part (2) arranged on the front and rear sides of the front wiring board assembly (1) and capable of being plugged into each other. A mounting hole (104) is formed in the front wiring board assembly (1) and is adapted to penetrate the injection molded part (2).
4. The flight control avionics module for a plant protection UAV according to claim 3, characterized in that: The injection molded parts (2) are composed of a baffle and a sleeve, and the injection molded parts (2) located on the front and rear sides of the front branch board assembly (1) can be plugged into each other through sleeves with different inner diameters.
5. The flight control avionics module for a plant protection UAV according to claim 4, characterized in that: The mounting hole (104) is composed of a circular ring abutted by a matching baffle and a circular hole penetrated by a matching sleeve, and the front branching plate assembly (1) is fixed to the metal frame (7) by bolts penetrating the injection molded part (2), so that the metal frame (7) and the front branching plate assembly (1) are insulated and separated by the injection molded part (2).
6. The flight control avionics module for a plant protection UAV according to claim 1, characterized in that: The waterproof sealing structure comprises a sealing rib (102) formed on the rear side of the front wiring board assembly (1), and a sealing groove (501) formed in the electric control module and inserted into the sealing rib (102). A sealing ring is embedded in the sealing rib (102). When the sealing rib (102) is embedded in the sealing groove (501), the end of the sealing rib (102) presses the sealing ring.
7. The flight control avionics module for a plant protection UAV according to claim 6, characterized in that: A concave point (105) and a convex point (502) for matching and clamping are formed on one side where the sealing rib (102) and the sealing groove (501) are in contact with each other.
8. The flight control avionics module for a plant protection UAV according to claim 2, characterized in that: The heat dissipation component comprises a heat dissipation boss (103) fixedly mounted on the rear end of the front wiring board assembly (1) and in contact with the front end surface of the receiver module (3), and a heat-conducting silicon chip (6) mounted on the rear end of the electric control module, wherein the rear end of the electric control module is formed with a groove (8) for fitting the heat-conducting silicon chip (6).