CN112243328A

CN112243328A - Sensor high-frequency vibration conduction blocking method for unmanned vehicle controller

Info

Publication number: CN112243328A
Application number: CN202011246469.5A
Authority: CN
Inventors: 萧晓玥
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-01-19

Abstract

The invention relates to a sensor high-frequency vibration conduction isolation shock absorption method for an unmanned vehicle controller, which comprises but is not limited to connecting an unmanned vehicle controller shell with a high-frequency vibration conduction damping material column, tightly buckling a sensor circuit board through the high-frequency vibration conduction damping material column, suspending the sensor circuit board in the controller, compressing the high-frequency vibration conduction damping material column when the unmanned vehicle controller shell is locked, and compressing air in the high-frequency vibration conduction damping material column. The damping of materials and the damping of compressed air are utilized to play a role in blocking high-frequency vibration. Compared with other existing methods, the installation volume can be effectively reduced, and the technical problems that the interior space of the unmanned vehicle controller is small and a high-frequency vibration conduction blocking structure is not easy to increase are solved.

Description

Sensor high-frequency vibration conduction blocking method for unmanned vehicle controller

Technical Field

The invention belongs to the technical field of unmanned vehicles, and particularly relates to a sensor high-frequency vibration conduction blocking method for an unmanned vehicle controller.

Background

The navigation attitude reference sensor of the traditional unmanned vehicle controller is usually directly manufactured on a control mainboard, and an unmanned vehicle runs, abnormal vibration and noise caused by a propeller or a power system can be generated during flight, so that the sensor can not accurately acquire an accurate attitude angle, the sensor can not work well, and abnormal vibration and noise caused by common influence are high-frequency vibration or high-frequency noise.

The unmanned vehicle controller of the sensor high-frequency vibration conduction separation structure of the unmanned vehicle controller comprises an unmanned vehicle controller (comprising a wheeled vehicle and a tracked vehicle), an unmanned ship controller (comprising a ship on the water surface and an underwater ship), and an unmanned vehicle controller (comprising a fixed-wing aircraft, a multi-rotary-shaft aircraft and a rotary-shaft aircraft).

The existing method of using external materials or sponge structures to block high-frequency vibration conduction can increase the installation difficulty, increase certain weight and waste internal installation space, or use sponge as blocking materials in the unmanned carrier and then install the unmanned carrier controller on the blocking device; or the single-purity separation sponge is installed between the main board of the unmanned vehicle controller and the sensor, the structure needs to occupy a large amount of internal space, and the sponge is soft, so that the method needs to add a balance weight on the circuit board of the sensor, and the self weight of the unmanned vehicle controller is increased. The existing structure is not ideal in high-frequency vibration isolation effect, and is easy to generate the same resonance phenomenon as a vibration source.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a method for blocking the high-frequency vibration conduction of a sensor of an unmanned vehicle controller.

In order to solve the above problems, the following technical solutions of the present invention are implemented by way of example:

FIG. 1 is a schematic view of the assembly of the present invention; the high-frequency vibration conduction isolation structure mechanism utilizes the outer shell 110 and the outer shell 111, wherein the outer shell 110 is provided with a single or a plurality of through holes, as shown in fig. 3, which is a schematic exploded perspective view of the present invention; the front of the through hole of the shell 110 is a concave structure 113, the diameter 113 of the front section of the through hole outside the shell 110 is the same as the outer diameter of the head of the fastening fixing screw 15, and the diameter of the rear section of the through hole is the same as the diameter of the fastening fixing screw 15.

FIG. 5 is a schematic view of the housing 110 of the present invention; FIG. 6 is a schematic view of the housing 111 of the present invention; wherein, the inner parts of the

outer shells

110, 111 are provided with one or more convex structures 16, wherein, the convex structures 16 are the exploded schematic side view as shown in fig. 2; the sleeve-like structure shown is for connection to a column of supporting high frequency vibration conductive damping material 14; the high frequency vibration conduction damping material column is sleeved in the 16-structure forming sleeve of the outer shell 110 and the outer shell 111 to form a sealed environment of the cavity, and air in the cavity is prevented from overflowing to the outside.

FIG. 4 is a schematic diagram of a sensor circuit board and a controller circuit board according to the present invention; FIG. 7 is a schematic view of a column of damping material according to the present invention; the high-frequency vibration conduction damping material column of the sensor high-frequency vibration conduction blocking structure of the unmanned vehicle controller is in a single-section or multi-section I-shaped 19 shape, a concave part is arranged on the outer diameter part of the damping material column, the concave part of the high-frequency vibration conduction damping material column 14 is used as a sleeve, and the controller circuit board 12 and the sensor circuit board 13 penetrating through the high-frequency vibration conduction damping material column 14 are fixedly arranged in the sleeve of the concave part of the high-frequency vibration conduction damping material column 14.

FIG. 1 is a schematic view of the assembly of the present invention; the high-frequency vibration conduction damping material column 14 penetrates through the shell 110, the controller circuit board 12, the sensor circuit board 13 and the supporting high-frequency vibration conduction damping material column 14 tightly sleeved with the sensor circuit board 3 through the shell buckling fixing screw 15 and is connected and tightly buckled with the shell 111, and the length of the high-frequency vibration conduction damping material column 14 is slightly longer than the length from the bottom of the convex part sleeve of the shell 110 to the bottom of the convex part sleeve of the shell 111. When the shell 110 and the shell 111 are fastened by fixing screws, the length of the high-frequency vibration conduction damping material column 14 is compressed, internal air is compressed to form damping due to the fact that the material of the high-frequency vibration conduction damping material column 14 is compressed, the sensor circuit board 13 is suspended inside the unmanned vehicle controller, and the damping material is compressed by the method and the air inside the damping material column cavity is compressed and damped, so that the high-frequency vibration conduction blocking effect is achieved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the present invention.

Claims

1. A sensor high-frequency vibration conduction blocking method for an unmanned vehicle controller is characterized in that a buffer material and gas in a cavity formed by the buffer material are used for reducing vibration; shock absorbing structures utilizing the present method include, but are not limited to, controller housings (110) (111); a controller circuit board (12); a sensor circuit board (13); a high frequency vibration conductive damping material column (14); the shell is buckled with a fixed screw (15) and other equipment.

2. The structure of the sensor high-frequency vibration conduction isolation method using the unmanned vehicle controller according to claim 1, wherein the mechanism including, but not limited to, the high-frequency vibration conduction isolation structure includes a housing (110) and a housing (111), wherein the housing (110) has a through hole (112) with a front concave structure (18), a front section of the concave through hole has a diameter same as the outer diameter of the head of the fastening screw (15), and a rear section of the concave through hole has a diameter same as the diameter of the fastening screw (15), wherein the housing (110), (110) has a single or multiple convex structures (16), wherein the convex structures (16) have a groove (17), and the groove (17) is used as a sleeve to be snapped into and connected with the pillar (14) of the high-frequency vibration conduction damping material; a supporting high-frequency vibration conduction damping material column (14) tightly sleeved with the sensor circuit board (13) and between the controller circuit board (12) and the sensor circuit board (13) penetrates through the shell (110) through a shell buckling fixing screw (15), and is connected and fastened with the shell (111); the shell (111) is internally provided with a convex structure (16) which is convex at one or more positions and is a concave structure (18) which is provided with screw holes with the same diameter for buckling and fixing screws (15).

3. The structure of the sensor high-frequency vibration conduction blocking method using the unmanned vehicle controller according to claim 2, wherein the structure includes, but is not limited to, a controller circuit board (12), the sensor circuit board (13) has one or more fixing holes (17), the center of the fixing hole is the same as the center of the hole of the fastening fixing screw (15) of the housing (11) of the unmanned vehicle controller, the fastening fixing screw (15) penetrates through the hole to perform a positioning function, and the high-frequency vibration conduction damping material column (14) and the sensor circuit board (13) are fixed in the unmanned vehicle controller; one end of the sensor circuit board is connected with one end of the controller circuit board through a flexible circuit board or an electric wire; the high-frequency vibration conduction damping material column is characterized in that the number of the fixing screws is at least more than one.

4. According to claim 3, the sensor high-frequency vibration conduction blocking structure for the unmanned vehicle controller comprises but is not limited to a high-frequency vibration conduction damping material pillar having a single-section or multi-section I-shape (19) in cross section, and is characterized by comprising but is not limited to a damping material pillar having a recess in the outer diameter portion, the high-frequency vibration conduction damping material pillar (14) recess is used as a sleeve, and the controller circuit board (12) and the sensor circuit board (13) penetrating through the high-frequency vibration conduction damping material pillar (14) are positioned by the high-frequency vibration conduction damping material pillar (14) recess sleeve; the middle shaft of the high-frequency vibration conduction damping material column (14) is a hole which completely penetrates through, and the hole diameter of the hole is slightly larger than the diameter of a fixing screw (15) of the shell of the unmanned vehicle controller; the length of the high-frequency vibration conduction damping material column (14) is slightly larger than the length from the convex part of the shell (11) to the convex part of the shell (11).