Quick-release type discharge brush

Abstract

The utility model discloses a quick-release type discharge brush. The quick-release type discharge brush comprises a discharge brush base mounted on an empennage of an unmanned aerial vehicle, and a discharge brush fixed on the discharge brush base, the discharge brush base comprises a mounting plate detachably connected with the tail wing of the unmanned aerial vehicle, and a connecting block fixed on the middle part of the mounting plate; the discharge brush is formed by bending and welding a plurality of steel wires, one ends of the plurality of steel wires are integrated into one position and are inserted into the connecting block, and the other ends of the plurality of steel wires are divergent. The discharge brush of the utility model can be quickly assembled and disassembled without wire harness connection, and all parts are connected by metal contacts, thereby meeting the requirements of simple and quick assembly and disassembly of the discharge brush.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a quick-release type discharge brush. Background Technique

[0002] When an unmanned aerial vehicle moves at high altitude and high speed, especially when passing through clouds, static charges will be generated due to the friction between the fuselage and the air. If the static electricity is not released in time, static electricity accumulation will occur, which will seriously affect the operation of the communication and navigation systems of the unmanned aerial vehicle. These charges are more likely to concentrate on the relatively sharp, thin and other edge areas of the outer surface of the unmanned aerial vehicle, such as wing tips, stabilizer edges, vertical tails, etc. Therefore, discharge brushes are installed in these areas to release static electricity into the atmosphere. The principle of the discharge brush is mainly to use the tip discharge phenomenon to safely release the static charges accumulated on the surface area of the unmanned aerial vehicle body. The metal needles at the top of the discharge brush are designed to be very small, so that more and more charges will accumulate in these small areas, forming a strong electric field. Therefore, the static charges accumulated at the top of the discharge brush are easily neutralized with the opposite charges in the air to complete the discharge. In this way, the charge energy on the surface of the unmanned aerial vehicle body can be effectively released into the atmosphere, avoiding potential dangers caused by large-area charge accumulation.

[0003] The discharge brushes of traditional fixed-wing unmanned aerial vehicles are mostly installed in a fixed integrated manner, and it is time-consuming to disassemble, install and replace them. Since the discharge brushes generally protrude from the fuselage for installation, they are not easy to protect during packing or transportation and are easily damaged by collision. In addition, the top of the discharge brush is relatively sharp, which is likely to cause harm to personnel when the unmanned aerial vehicle is stored or debugged on the ground. When the discharge brush is damaged during outfield flight, or when the unmanned aerial vehicle needs to disassemble, install and replace the discharge brush during debugging, storage or transportation, it is time-consuming and laborious. Content of the Utility Model

[0004] Based on the above deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a quick-release type discharge brush, which can be quickly installed and disassembled, has no wire connection, and all parts are connected by metal contacts, meeting the requirements of simple and quick disassembly and assembly of the discharge brush.

[0005] To solve the above technical problem, the utility model is realized through the following technical solutions: The utility model provides a quick-release type discharge brush, which includes a discharge brush base installed on the tail wing of the unmanned aerial vehicle and a discharge brush fixed on the discharge brush base; the discharge brush base includes a mounting plate detachably connected to the tail wing of the unmanned aerial vehicle and a connecting block fixed on the middle part of the mounting plate; the discharge brush is formed by bending and welding multiple steel wires, one ends of the multiple steel wires are gathered together and inserted into the connecting block, and the other ends of the multiple steel wires are in a divergent shape.

[0006] Furthermore, fixing holes are provided at both ends of the mounting plate, and the discharge brush base is installed on the tail wing of the unmanned aerial vehicle through the fixing holes by internal hexagon screws.

[0007] Further, a buried copper part is provided on the tail fin of the drone, the discharge brush base is mounted on the buried copper part, and an electrical connection is established between the discharge brush and the buried copper part.

[0008] Preferably, multiple steel wires are connected together by spot welding.

[0009] Optionally, one end of the connecting block is arc-shaped, and the other end is a plane perpendicular to the mounting plate. An inwardly concave mounting hole is formed on this plane. The collective ends of multiple steel wires are inserted into the mounting hole, and the connecting block and the steel wires are welded into one body.

[0010] Further, the diameter of the steel wire is 0.5 mm.

[0011] Thus, the quick-release type discharge brush of the present utility model has at least the following beneficial effects:

[0012] The quick installation, disassembly and removal of the discharge brush of the present utility model can be achieved by two screws, without being restricted by the auxiliary environment and equipment, without wire harness connection, and all parts are connected by metal contacts, meeting the requirements of simple and quick disassembly and removal of the discharge brush, and making on-site maintenance and replacement more convenient. The discharge brush of the present utility model can be applied to multiple aircraft models.

[0013] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the invention more obvious and understandable, the following is described in detail with reference to the preferred embodiments and in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings of the embodiments will be briefly introduced below.

[0015] Figure 1 is a schematic structural view of the quick-release type discharge brush of the present utility model;

[0016] Figure 2 is an exploded view of the quick-release type discharge brush of the present utility model.

[0017] In the figure: 1 - discharge brush base, 11 - mounting plate, 12 - connecting block, 2 - discharge brush, 3 - hexagon socket head cap screw, 4 - steel wire, 5 - solder joint, 6 - mounting hole, 7 - fixing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The specific implementation manners of the present utility model will be described in detail below in conjunction with the accompanying drawings. As a part of this specification, the principles of the present invention are illustrated through embodiments. Other aspects, features, and advantages of the present utility model will become apparent through this detailed description. In the accompanying drawings referred to, the same or similar components in different figures are denoted by the same reference numerals.

[0019] As Figure 1 and Figure 2 shown, the quick-release type discharge brush of the present utility model includes a discharge brush base 1 installed on the tail wing of the drone and a discharge brush 2 fixed on the discharge brush base 1.

[0020] Among them, the discharge brush base 1 includes a mounting plate 11 detachably connected to the tail wing of the drone and a connecting block 12 fixed on the middle part of the mounting plate 11. Fixing holes 7 are provided at both ends of the mounting plate 11, and the discharge brush base 1 is installed on the tail wing of the drone through the fixing holes 7 by an M3*10mm socket head hexagon screw 3.

[0021] A buried copper part is provided on the tail wing of the drone, the discharge brush base 1 is installed on the buried copper part, and an electrical connection is established between the discharge brush 2 and the buried copper part.

[0022] In addition, the discharge brush 2 is formed by bending and welding multiple steel wires 4. One ends of the multiple steel wires 4 are gathered together and inserted into the connecting block 12, and the other ends of the multiple steel wires 4 are in a divergent shape. The multiple steel wires 4 are connected together by spot welding. The distribution of the solder joints 5 formed by electric welding is as Figure 2 shown.

[0023] One end of the connecting block 12 is arc-shaped, and the other end is a plane perpendicular to the mounting plate 11. An inwardly concave mounting hole 6 is formed on this plane. The gathered ends of the multiple steel wires 4 are inserted into the mounting hole 6, and the connecting block 12 and the steel wires 4 are welded into one body. The arc-shaped surface of the connecting block 12 faces forward, which is beneficial to reducing the resistance during the flight of the drone.

[0024] Specifically, the discharge brush 2 is formed by bending and welding 5 steel wires 4 with a diameter of 0.5 mm. The discharge brush 2 is inserted into the mounting hole 6 of the discharge brush base 1, and then the discharge brush base 1 and the discharge brush 2 are welded into one body using a soldering station. Then, 2 M3*10mm socket head hexagon screws 3 are used to install the whole to the position of the buried copper part on the tail wing of the drone through the fixing holes 7 of the discharge brush base 1. An electrical connection can be achieved through the discharge brush 2 and the buried copper part inside the tail wing of the drone, and discharging is completed.

[0025] The above are the preferred embodiments of the present utility model. Of course, the scope of rights of the present utility model cannot be limited thereby. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present utility model.

Claims

1. A quick-release discharge brush, characterized in that: It comprises a discharge brush base (1) mounted on the tail wing of an unmanned aerial vehicle, and a discharge brush (2) fixed on the discharge brush base (1); The discharge brush base (1) comprises a mounting plate (11) detachably connected to the tail wing of the drone, and a connecting block (12) fixed to the middle part of the mounting plate (11); The discharge brush (2) is formed by bending and welding a plurality of steel wires (4), one end of the plurality of steel wires (4) is gathered into one place and inserted into the connection block (12), and the other end of the plurality of steel wires (4) is in a divergent shape.

2. The quick-release discharge brush according to claim 1, characterized in that: Both ends of the mounting plate (11) are provided with fixing holes (7), and the hexagon socket screws (3) are passed through the fixing holes (7) to mount the discharge brush base (1) on the tail wing of the drone.

3. The quick-release discharge brush according to claim 1, characterized in that: An embedded copper part is provided on the tail wing of the drone, the discharge brush base (1) is mounted on the embedded copper part, and the discharge brush (2) is electrically connected to the embedded copper part.

4. The quick-release discharge brush according to claim 1, characterized in that: A plurality of steel wires (4) are connected together by spot welding.

5. The quick-release discharge brush according to claim 1, characterized in that: One end of the connection block (12) is arc-shaped, and the other end is a plane vertically arranged with respect to the mounting plate (11). A concave mounting hole (6) is formed on the plane. The collective ends of a plurality of steel wires (4) are inserted into the mounting hole (6), and the connection block (12) and the steel wires (4) are welded together.

6. The quick-release discharge brush according to any one of claims 1 to 5, characterized in that: The diameter of the steel wire (4) is 0.5 mm.

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