Unmanned aerial vehicle inertia measurement module

Abstract

The utility model provides an unmanned aerial vehicle inertial measurement module which comprises an outer shell, an installation mechanism is arranged on the outer side of the outer shell, a side shell is installed on one side of the outer shell through a clamping mechanism, and two fixing plates are symmetrically and fixedly installed on one side of the side shell. A first damping rubber pad and a second rubber pad are arranged in the outer shell, so that the fixing plate and the circuit board can be buffered and damped, the first damping rubber pad, the second rubber pad, the circuit board and the fixing plate are of a split structure, and when the side shell is taken out to detect the circuit board and the inertial measurement unit, the side shell does not need to be replaced; protection on the circuit board and the inertial measurement unit can be increased through a fixed plate and a second rubber pad; and through mutual clamping of a third rubber block and a first damping rubber pad, the outer shell and the side shell are conveniently clamped and fixed, and the side shell is conveniently disassembled from the side surface, so that the circuit board and the inertial measurement unit can be overhauled, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle inertial measurement, in particular to an unmanned aerial vehicle inertial measurement module. Background Art

[0002] Unmanned aerial vehicles are composed of flight controllers, sensors, actuators, etc. The flight controller consists of a main control MCU and an inertial measurement module. The inertial measurement module can provide raw sensor data of the aircraft's attitude in space, including gyroscope sensors, acceleration sensors, electronic compasses, etc.

[0003] The Chinese invention patent with publication number CN104931052A proposes an unmanned aerial vehicle measurement module, including a shell assembly, a first circuit board, a second circuit board, a buffer device and a thermostat are accommodated in a hollow shell assembly cavity, the first circuit board is fixed on the inner wall of the shell assembly, the second circuit board is fixed in the first groove at the bottom of the thermostat, an inertial sensor is arranged on the second circuit board, the second circuit board is connected to the first circuit board through a connecting line, and the purpose of improving stability is achieved by bonding the buffer device to the thermostat installed in the shell of the inertial measurement module, but it has the following problems: the shock absorption of the inertial measurement module is to set a buffer device inside the shell of the control module, the buffer device and the measurement module are an integral whole, because the upper and lower shock absorbing pads of the buffer device are bonded to the thermostat of the measurement module, when the module is inspected or repaired, the shock absorbing pad must be replaced again, which makes the module replacement inconvenient and the shock absorbing effect of the shock absorbing pad is not good.

[0004] The bottom shell of the above technical solution is

[0005] To this end, the utility model provides an unmanned aerial vehicle inertial measurement module. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide an unmanned aerial vehicle inertial measurement module to solve the problems raised in the above-mentioned background technology. The utility model can buffer and reduce shock on a fixing plate and a circuit board by arranging a first shock-absorbing rubber pad and a second rubber pad inside an outer shell. Moreover, the first shock-absorbing rubber pad and the second rubber pad are split structures with the circuit board and the fixing plate. When the side shell is taken out to detect the circuit board and the inertial measurement unit, there is no need to replace them, which is easy to use.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: an unmanned aerial vehicle inertial measurement module, including an outer shell, an installation mechanism is arranged on the outer side of the outer shell, a side shell is installed on one side of the outer shell through a clamping mechanism, two fixing plates are symmetrically fixedly installed on one side of the side shell, a circuit board is fixedly installed on the side wall of the corresponding side shell between the two fixing plates, an inertial measurement unit is fixedly arranged on the circuit board, and the clamping mechanism includes a first shock-absorbing rubber pad and a third rubber pad.

[0008] Furthermore, the first shock-absorbing rubber pad is symmetrically fixed on the top wall and the bottom wall on the inner side of the outer shell, and a groove is formed at one end of the first shock-absorbing rubber pad.

[0009] Further, the third rubber pad is symmetrically fixedly arranged on the top and bottom of one side of the side shell, and the third rubber pad is respectively arranged on the top and bottom of the fixing plate.

[0010] Furthermore, a protrusion is fixedly provided on one side of the third rubber pad at a position corresponding to the groove, and the protrusion is snap-fitted and installed inside the groove.

[0011] Furthermore, a second rubber pad is fixedly mounted on the side wall of the outer shell, a slot is formed at one end of the second rubber pad, and one end of the circuit board is mounted inside the slot.

[0012] Furthermore, the second rubber pad is arranged between the top and bottom first shock-absorbing rubber pads, and the other ends of the two fixing plates are respectively arranged between the second rubber pad and the first shock-absorbing rubber pad.

[0013] Furthermore, an upper through hole and a lower through hole are respectively provided at the center positions of the top and bottom of the outer shell, static pressure through holes are provided inside the circuit board and the fixing plate, the central axes of the upper through hole, the lower through hole and the static pressure through hole are on the same straight line, and a diversion channel is provided inside the first shock-absorbing rubber pad, and the diversion channel is respectively connected to the upper through hole, the lower through hole and the static pressure through hole.

[0014] Furthermore, the mounting mechanism includes a first fixing block and a second fixing block, wherein the first fixing block is fixedly arranged at the bottom of the left end of the outer shell, and the second fixing block is symmetrically fixedly arranged at the bottom of the front and rear end surfaces of the outer shell, and mounting holes are opened inside the first fixing block and the second fixing block.

[0015] The beneficial effects of the utility model are as follows: the utility model provides an unmanned aerial vehicle inertial measurement module, which can buffer and reduce shock on a fixing plate and a circuit board by arranging a first shock-absorbing rubber pad and a second rubber pad inside an outer shell, and the first shock-absorbing rubber pad and the second rubber pad are a separate structure from the circuit board and the fixing plate, so when the side shell is taken out to detect the circuit board and the inertial measurement unit, it is not necessary to replace them, and the use is convenient; the fixed plate and the second rubber pad can increase the protection of the circuit board and the inertial measurement unit; the third rubber block and the first shock-absorbing rubber pad are mutually clamped, so that the outer shell and the side shell can be conveniently clamped and fixed, and the side shell can be conveniently disassembled from the side, so that the circuit board and the inertial measurement unit can be inspected, and the utility model is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of an inertial measurement module for an unmanned aerial vehicle of the utility model;

[0017] Figure 2 This is a cross-sectional view of an inertial measurement module for an unmanned aerial vehicle according to the utility model;

[0018] Figure 3 This is a side shell structure diagram of an unmanned aerial vehicle inertial measurement module of the utility model;

[0019] In the figure: 1. outer shell; 2. side shell; 3. first fixing block; 4. second fixing block; 5. mounting hole; 6. upper through hole; 7. lower through hole; 8. first shock-absorbing rubber pad; 9. shunt channel; 10. second rubber pad; 11. circuit board; 12. fixing plate; 13. inertial measurement unit; 14. third rubber pad; 15. protrusion; 16. static pressure through hole. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figures 1 to 3The utility model provides a technical solution: an unmanned aerial vehicle inertial measurement module, comprising an outer shell 1, an installation mechanism is arranged on the outer side of the outer shell 1, a side shell 2 is installed on one side of the outer shell 1 through a clamping mechanism, two fixing plates 12 are symmetrically fixedly installed on one side of the side shell 2, a circuit board 11 is fixedly installed on the side wall of the corresponding side shell 2 between the two fixing plates 12, an inertial measurement unit 13 is fixedly arranged on the circuit board 11, the clamping mechanism comprises a first shock-absorbing rubber pad 8 and a third rubber pad 14, the fixing plate 12 can be blocked at the top and bottom of the circuit board 11 and the inertial measurement unit 13, the protection of the circuit board 11 and the inertial measurement unit 13 can be increased, the inertial measurement unit 13 comprises an MPU6070 sensor, an MS5611 barometer, and an HMC5883 electronic compass, and the MPU6070 sensor, the MS5611 barometer, and the HMC5883 electronic compass are electrically installed on the circuit board 11.

[0022] In this embodiment, the first shock-absorbing rubber pad 8 is symmetrically fixed on the top wall and the bottom wall on the inner side of the outer shell 1, and a groove is opened at one end of the first shock-absorbing rubber pad 8. The third rubber pad 14 is symmetrically fixed on the top and the bottom of one side of the side shell 2. The third rubber pad 14 is respectively arranged on the top and the bottom of the fixing plate 12. A protrusion 15 is fixedly arranged on one side of the third rubber pad 14 at the position corresponding to the groove. The protrusion 15 is snap-fitted and installed inside the groove. The side shell 2 can be fixed by the first shock-absorbing rubber pad 8, the third rubber pad 14, the protrusion 15 and the groove, and it is also convenient to disassemble the side shell 2, thereby facilitating the inspection and maintenance of the circuit board 11 and the inertial measurement unit 13.

[0023] In this embodiment, a second rubber pad 10 is fixedly installed on the side wall of the outer shell 1, a slot is opened at one end of the second rubber pad 10, one end of the circuit board 11 is installed inside the slot, the second rubber pad 10 is arranged between the top and bottom first shock-absorbing rubber pads 8, and the other ends of the two fixed plates 12 are respectively provided between the second rubber pad 10 and the first shock-absorbing rubber pad 8. The first shock-absorbing rubber pad 8 and the second rubber pad 10 can be used to reduce shock, reduce the influence of vibration on the inertial measurement unit 13, and improve the stability of the inertial measurement module.

[0024] In this embodiment, an upper through hole 6 and a lower through hole 7 are respectively provided at the center positions of the top and the bottom of the outer shell 1, and a static pressure through hole 16 is provided inside the circuit board 11 and the fixing plate 12. The central axes of the upper through hole 6, the lower through hole 7 and the static pressure through hole 16 are on the same straight line. A shunt channel 9 is provided inside the first shock-absorbing rubber pad 8, and the shunt channel 9 is respectively connected with the upper through hole 6, the lower through hole 7, and the static pressure through hole 16. The upper through hole 6, the lower through hole 7 and the shunt channel 9 can buffer high-speed chaotic gas, reduce the interference of external factors on the measurement of the barometer, and improve the accuracy of the inertial measurement module.

[0025] In this embodiment, the mounting mechanism includes a first fixing block 3 and a second fixing block 4, wherein the first fixing block 3 is fixedly arranged at the bottom of the left end of the outer shell 1, and the second fixing block 4 is symmetrically fixedly arranged at the bottom of the front and rear end surfaces of the outer shell 1, and mounting holes 5 are provided inside the first fixing block 3 and the second fixing block 4. The inertial measurement module can be conveniently fixed on the unmanned aerial vehicle through the first fixing block 3, the second fixing block 4 and the mounting hole 5.

[0026] When using the unmanned aerial vehicle inertial measurement module, the fixing plate 12 and the circuit board 11 are inserted into the interior of the outer shell 1, and the side shell 2 is pushed toward the outer shell 1, so that the side shell 2 closes the outer shell 1. At this time, the fixing plate 12 is arranged between the first shock-absorbing rubber pad 8 and the second rubber pad 10, and one end of the circuit board 11 is inserted into the interior of the slot. The protection of the circuit board 11 is increased by the second rubber pad 10 and the fixing plate 12. The side shell 2 drives the third rubber pad 14 so that the protrusion 15 and the groove are engaged, which is convenient for the outer shell 1 and the side shell 2 to be engaged and fixed. By arranging the first shock-absorbing rubber pad 8 and the second rubber pad 10 inside the outer shell 1, the fixing plate 12 and the circuit board 11 can be buffered and shock-absorbed, and The first shock-absorbing rubber pad 8 and the second rubber pad 10 are split structures with the circuit board 11 and the fixing plate 12. When the side shell 2 is taken out to detect the circuit board 11 and the inertial measurement unit 13, there is no need to replace them, which is convenient to use; when the circuit board 11 and the inertial measurement unit 13 need to be repaired, the side shell 2 is pulled to one side, and the side shell 2 drives the third rubber pad 14 to separate the protrusion 15 and the groove, and the side shell 2 drives the fixing plate 12 and the circuit board 11, which is convenient for disassembling the side shell 2 from the side, and is highly practical; after the high-speed chaotic gas enters the upper through hole 6 or the lower through hole 7, it is separated through the diversion channel 9, and finally collides and offsets each other at the outlet of the diversion channel 9, thereby buffering it.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An unmanned aerial vehicle inertial measurement module, comprising an outer shell (1), characterized in that: An installation mechanism is provided on the outside of the outer shell (1); a side shell (2) is installed on one side of the outer shell (1) via a clamping mechanism; two fixing plates (12) are symmetrically fixedly installed on one side of the side shell (2); a circuit board (11) is fixedly installed on the side wall of the corresponding side shell (2) between the two fixing plates (12); an inertial measurement unit (13) is fixedly installed on the circuit board (11); and the clamping mechanism comprises a first shock-absorbing rubber pad (8) and a third rubber pad (14).

2. The unmanned aerial vehicle inertial measurement module according to claim 1, characterized in that: The first shock-absorbing rubber pad (8) is symmetrically fixedly arranged on the top wall and the bottom wall on the inner side of the outer shell (1), and a groove is formed at one end of the first shock-absorbing rubber pad (8).

3. The unmanned aerial vehicle inertial measurement module according to claim 2, characterized in that: The third rubber pad (14) is symmetrically fixedly arranged at the top and bottom of one side of the side shell (2), and the third rubber pad (14) is respectively arranged at the top and bottom of the fixing plate (12).

4. The unmanned aerial vehicle inertial measurement module according to claim 3, characterized in that: A protrusion (15) is fixedly provided on one side of the third rubber pad (14) at a position corresponding to the groove, and the protrusion (15) is snap-fitted and installed inside the groove.

5. The unmanned aerial vehicle inertial measurement module according to claim 1, characterized in that: A second rubber pad (10) is fixedly mounted on the side wall of the outer shell (1), one end of the second rubber pad (10) is provided with a slot, and one end of the circuit board (11) is mounted inside the slot.

6. The unmanned aerial vehicle inertial measurement module according to claim 5, characterized in that: The second rubber pad (10) is arranged between the top and bottom first shock-absorbing rubber pads (8), and the other ends of the two fixing plates (12) are respectively arranged between the second rubber pad (10) and the first shock-absorbing rubber pad (8).

7. The unmanned aerial vehicle inertial measurement module according to claim 1, characterized in that: An upper through hole (6) and a lower through hole (7) are respectively provided at the center positions of the top and bottom of the outer shell (1); static pressure through holes (16) are provided inside the circuit board (11) and the fixing plate (12); the central axes of the upper through hole (6), the lower through hole (7) and the static pressure through hole (16) are on the same straight line; a shunt channel (9) is provided inside the first shock-absorbing rubber pad (8); the shunt channel (9) is respectively connected to the upper through hole (6), the lower through hole (7) and the static pressure through hole (16).

8. The unmanned aerial vehicle inertial measurement module according to claim 1, characterized in that: The mounting mechanism comprises a first fixing block (3) and a second fixing block (4); the first fixing block (3) is fixedly arranged at the bottom of the left end of the outer shell (1); the second fixing block (4) is symmetrically fixedly arranged at the bottom of the front and rear end surfaces of the outer shell (1); and mounting holes (5) are provided inside the first fixing block (3) and the second fixing block (4).

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