An inspection unmanned aerial vehicle for detecting hot spots of a photovoltaic assembly

Abstract

The utility model discloses a kind of for detecting photovoltaic module hot spot's inspection unmanned plane, belong to photovoltaic inspection unmanned plane technical field, unmanned plane body and holder, holder is installed on unmanned plane body by bolt, and detection assembly is installed on holder;Among them, buffer assembly is installed between holder and unmanned plane body, for protecting detection assembly, the utility model can absorb the impact force in multiple directions, significantly reduce the influence of vibration on infrared sensor and camera module, reduce the detection accuracy decline due to mechanical damage.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic inspection drone technology, specifically to an inspection drone for detecting hot spots on photovoltaic modules. Background Technology

[0002] In the daily operation and maintenance of photovoltaic power plants, hot spots on photovoltaic modules can seriously affect power generation efficiency and module lifespan. Therefore, regular inspections are required using inspection drones. Although buffer components are installed at the connection between the inspection module and the drone body, the buffering direction is mostly axial, which cannot cope with multi-directional impact forces and has limited buffering effect. For example, when the drone turns or is affected by wind direction, it will still cause vibration of the inspection module, resulting in blurred images. Long-term use will also cause mechanical damage such as component loosening and solder joint detachment due to stress concentration, significantly reducing inspection accuracy and equipment lifespan. In order to solve the above problems, this utility model provides an inspection drone for detecting hot spots on photovoltaic modules. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this invention is to provide an inspection drone for detecting hot spots on photovoltaic modules, which can absorb impact forces from multiple directions, significantly reduce the impact of vibration on infrared sensors and camera modules, and reduce the decrease in detection accuracy caused by mechanical damage.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This utility model provides an inspection drone for detecting hot spots on photovoltaic modules, comprising:

[0005] The drone itself;

[0006] A gimbal, which is bolted to the drone body and has a detection component mounted on it;

[0007] A buffer component is installed between the gimbal and the drone body to protect the detection component.

[0008] Preferably, the detection component includes:

[0009] A housing, which is fixedly mounted on the gimbal;

[0010] An infrared sensor, which is installed inside the housing;

[0011] A camera module, which is installed inside the housing.

[0012] Preferably, the buffer component includes:

[0013] Multiple elastic parts are fixedly installed on the base plate of the gimbal and located between the base plate of the gimbal and the drone body, and are sleeved on corresponding bolts. The elastic parts are used to mitigate impact forces from multiple directions.

[0014] Preferably, the buffer component further includes:

[0015] Multiple clamping parts are fixedly mounted on the base plate of the gimbal and located between the base plate of the gimbal and the nuts of the corresponding bolts.

[0016] Preferably, the elastic portion includes:

[0017] A base ring, which is fixedly mounted on the base plate of the gimbal;

[0018] Multiple spring plates are distributed circumferentially along the base ring, with the end of the spring plate away from the base ring abutting against the outer shell of the UAV body;

[0019] The inner diameter of the base ring is larger than the diameter of the corresponding bolt, and the base plate of the gimbal has a through hole that matches the inner diameter of the base ring.

[0020] Preferably, the spring plate is arc-shaped, with its end away from the base ring folded towards the axis of the base ring to form a horizontal section, which fits the shell of the drone body during installation.

[0021] Preferably, the abutting portion includes:

[0022] A spring, which is fixedly connected to the base plate of the gimbal;

[0023] A retaining ring is fixedly installed at the end of the spring away from the gimbal base plate, and abuts against the nut of the corresponding bolt under the elastic force of the spring.

[0024] Preferably, the outer side of the housing is provided with a protective part for protecting the camera module.

[0025] Preferably, the protective part includes:

[0026] A retaining ring is mounted on the housing and sleeved on the outside of the lens of the camera module;

[0027] A fixed frame is fixedly installed on the outer ring surface of a fixed ring, and a motor is installed inside the fixed frame;

[0028] A cover plate, which is fixedly connected to the motor shaft of the motor.

[0029] Preferably, a plurality of arc plates are fixedly connected to the housing, the plurality of arc plates are distributed along the circumference of the fixing ring, and the arc plates are threadedly connected to the fixing ring.

[0030] The beneficial effects of this utility model are as follows:

[0031] This invention, through the design of an elastic part and a clamping part, enables the elastic part to absorb multi-directional impact forces through elastic deformation, while the spring and clamping ring of the clamping part form an axial buffer. This double buffering significantly reduces the impact of vibration on the infrared sensor and camera module, and reduces the decrease in detection accuracy caused by mechanical damage. At the same time, the combined structure of the elastic part and the clamping part avoids the stress concentration problem of traditional rigid connections, and extends the service life of the detection components.

[0032] This invention, through the arrangement of a cover plate, a fixing ring, and a motor, enables the motor to drive the cover plate to rotate and close when the device is not in the detection state, thereby effectively preventing dust and rainwater from contaminating the lens of the camera module. During detection, the cover plate opens without obstructing the field of view. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of the present invention (first perspective).

[0035] Figure 2 This is a schematic diagram of the cover plate of this utility model in the open state.

[0036] Figure 3 This is a schematic diagram of the structure of the present invention (second perspective).

[0037] Figure 4 This is a cross-sectional view of the base ring and spring plate of this utility model.

[0038] Figure 5 This is a schematic diagram of the connection between the base ring and the spring plate of this utility model.

[0039] Figure 6 This is an exploded view of the fixing ring, cover plate and shell of this utility model.

[0040] Figure 7 This is a cross-sectional view of the housing of this utility model.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. UAV body, 2. Gimbal, 3. Shell, 4. Infrared sensor, 5. Camera module, 6. Base ring, 7. Spring plate, 8. Spring, 9. Clamping ring, 10. Fixing ring, 11. Fixing frame, 12. Motor, 13. Cover plate, 14. Arc plate. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] This utility model provides an inspection drone for detecting hot spots on photovoltaic modules, such as... Figures 1 to 7 As shown.

[0045] Example 1:

[0046] An inspection drone for detecting hot spots on photovoltaic modules includes a drone body 1. The bottom of the drone body 1 is connected to a gimbal 2 by bolts. A detection component is fixedly installed on the base plate of the gimbal 2. The detection component includes a housing 3, an infrared sensor 4, and a camera module 5. The housing 3 is fixedly connected to the gimbal 2. The infrared sensor 4 and the camera module 5 cooperate to detect hot spots on the photovoltaic modules. The probe of the infrared sensor 4 extends through the housing 3 to the outside of the housing 3, and the lens of the camera module 5 also extends through the housing 3 to the outside of the housing 3. The infrared sensor 4 and the camera module 5 are existing technologies, and their structure and working principle are not the technical features of this utility model. Therefore, this utility model will not describe them in detail. For example, the infrared sensor 4 can be the UTi640Q model from Uni-Trend, and the camera module 5 can be the IMX586 from Sony.

[0047] To achieve multi-directional vibration reduction, a buffer assembly is set between the gimbal 2 and the drone body 1. This buffer assembly contains multiple elastic parts, and the number of elastic parts is adapted to the number of bolts connecting the gimbal 2 and the drone body 1.

[0048] The elastic part includes a base ring 6, which is fixedly mounted on the base plate of the gimbal 2. The base ring 6 is sleeved on the outside of the corresponding bolt, and the inner diameter of the base ring 6 is larger than the bolt diameter. The base plate of the gimbal 2 has a through hole for the bolt to pass through, and the diameter of this through hole is the same as the inner diameter of the base ring 6 (this through hole allows the elastic plate 7 to absorb and buffer impacts from multiple directions). Multiple elastic plates 7 are evenly distributed around the base ring 6, and the elastic plates 7 are made of nitrile rubber. The end of the elastic plate 7 away from the base ring 6 is folded towards the axis to form a horizontal section. During installation, the horizontal section is attached to the shell of the drone body 1 with double-sided adhesive. When the drone turns or is impacted by lateral wind, the elastic plates 7 in different directions absorb the impact force by bending deformation of different degrees and angles. If the drone experiences longitudinal turbulence, all the elastic plates 7 bend and deform simultaneously to absorb the impact force, thereby achieving absorption and buffering of impacts from multiple directions.

[0049] Example 2:

[0050] Based on Embodiment 1, the buffer assembly further includes multiple clamping parts. The number of clamping parts is adapted to the number of bolts connecting the gimbal 2 and the drone body 1. Each clamping part includes a spring 8. One end of the spring 8 is fixedly mounted on the base plate of the gimbal 2, and the other end is fixedly connected to a clamping ring 9. The clamping ring 9 can be made of polyoxymethylene (wear-resistant and with a low coefficient of friction). During installation, the bolt passes through the clamping ring 9, the through hole on the gimbal 2, and the base ring 6, and is threadedly connected to the threaded hole on the outer shell of the drone body 1. After the bolt is tightened, the spring 8 is in a compressed state, and its elastic force pushes the clamping ring 9 to always press against the bolt nut, preventing buffer failure caused by bolt loosening. When the drone is subjected to axial vibration, the extension and contraction deformation of the spring 8 can form a double axial buffer with the horizontal section of the spring plate 7, further weakening the energy of the vibration transmitted to the infrared sensor 4 and the camera module 5.

[0051] During operation, the elastic plate 7 of the elastic part is responsible for absorbing the impact force in the horizontal and inclined directions, while the spring 8 of the clamping part focuses on axial buffering. The two work together to further reduce the vibration amplitude of the detection component, thereby significantly reducing the impact of vibration on the detection component and reducing the decrease in detection accuracy caused by mechanical damage.

[0052] Example 3:

[0053] This embodiment mainly introduces the protection mechanism of the protective part for the camera module 5. The specific structure is as follows: A protective part is installed on the outer front end of the housing 3 to protect the lens of the camera module 5. The protective part includes a fixing ring 10, which is sleeved on the outer side of the lens. Multiple arc plates 14 are welded to the housing 3 along the circumference of the fixing ring 10. The inner side of the arc plate 14 is provided with internal threads, which engage with the external threads on the outer ring surface of the fixing ring 10. After tightening, the fixing ring 10 can be installed on the housing 3.

[0054] A fixing frame 11 is welded to the outer ring surface of the fixing ring 10. A motor 12 is installed inside the fixing frame 11. The motor shaft of the motor 12 passes through the fixing frame 11 and is keyed to the cover plate 13. The diameter of the cover plate 13 is the same as the outer diameter of the fixing ring 10. When the UAV is in a non-detection state, the motor 12 drives the cover plate 13 to rotate to the closed position (i.e., the cover plate 13 coincides with the fixing ring 10) to protect the lens of the camera module 5. When detection is started, the motor 12 rotates 90° in the opposite direction, and the cover plate 13 opens to the side of the lens, so as not to obstruct the shooting field of view.

[0055] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An inspection drone for detecting hot spots on photovoltaic modules, characterized in that, include: Unmanned aerial vehicle body (1); The gimbal (2) is mounted on the UAV body (1) by bolts, and a detection component is installed on the gimbal (2); A buffer component is installed between the gimbal (2) and the UAV body (1) to protect the detection component.

2. The inspection drone for detecting hot spots in photovoltaic modules as described in claim 1, characterized in that, The detection component includes: The housing (3) is fixedly mounted on the gimbal (2); Infrared sensor (4), the infrared sensor (4) is installed inside the housing (3); The camera module (5) is installed inside the housing (3).

3. The inspection drone for detecting hot spots on photovoltaic modules as described in claim 1, characterized in that, The buffer component includes: Multiple elastic parts are fixedly installed on the base plate of the gimbal (2) and located between the base plate of the gimbal (2) and the UAV body (1), and are sleeved on the corresponding bolts. The elastic parts are used to alleviate the impact force from multiple directions.

4. The inspection drone for detecting hot spots on photovoltaic modules as described in claim 3, characterized in that, The buffer component also includes: Multiple clamping parts are fixedly installed on the base plate of the gimbal (2) and located between the base plate of the gimbal (2) and the nuts of the corresponding bolts.

5. The inspection drone for detecting hot spots in photovoltaic modules as described in claim 3, characterized in that, The elastic portion includes: Base ring (6), which is fixedly mounted on the base plate of the gimbal (2); Multiple spring plates (7) are distributed circumferentially along the base ring (6), and the end of the spring plate (7) away from the base ring (6) abuts against the outer shell of the UAV body (1); The inner diameter of the base ring (6) is larger than the diameter of the corresponding bolt, and the base plate of the gimbal (2) is provided with a through hole that matches the inner diameter of the base ring (6).

6. The inspection drone for detecting hot spots in photovoltaic modules as described in claim 5, characterized in that, The elastic plate (7) is arc-shaped, with one end away from the base ring (6) folded towards the axis of the base ring (6) to form a horizontal section, which fits the shell of the UAV body (1) during installation.

7. The inspection drone for detecting hot spots on photovoltaic modules as described in claim 4, characterized in that, The clamping part includes: Spring (8), which is fixedly connected to the base plate of gimbal (2); A retaining ring (9) is fixedly installed at one end of the spring (8) away from the base plate of the gimbal (2) and abuts against the nut of the corresponding bolt under the elastic force of the spring (8).

8. The inspection drone for detecting hot spots in photovoltaic modules as described in claim 2, characterized in that, The outer side of the housing (3) is provided with a protective part for protecting the camera module (5).

9. The inspection drone for detecting hot spots in photovoltaic modules as described in claim 8, characterized in that, The protection unit includes: A fixing ring (10) is installed on the housing (3) and sleeved on the outside of the lens of the camera module (5); A fixed frame (11) is fixedly installed on the outer ring surface of the fixed ring (10), and a motor (12) is installed inside the fixed frame (11). Cover plate (13) is fixedly connected to the motor shaft of motor (12).

10. The inspection drone for detecting hot spots in photovoltaic modules as described in claim 9, characterized in that, Multiple arc plates (14) are fixedly connected to the housing (3). The multiple arc plates (14) are distributed circumferentially along the fixing ring (10), and the arc plates (14) are threadedly connected to the fixing ring (10).

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