Lens defogging device of optoelectronic pod

Abstract

This utility model discloses a lens defogging device for an optoelectronic pod, relating to the field of UAV lens technology. It includes a front shell and a rear shell, arranged sequentially from front to back. A lens module is disposed between the front and rear shells. A left side cover and a right side cover are respectively provided on both sides of the lens module. A visible light sensor, an infrared thermal imaging lens, and a laser rangefinder lens are integrated on the side of the module closest to the front shell. Mounting holes are provided on the surface of the front shell at positions corresponding to the visible light sensor, infrared thermal imaging lens, and laser rangefinder lens. A lens cover is provided on the front side of the visible light sensor, engaging with the corresponding mounting holes. A heating module is installed inside the lens cover. This utility model directly conducts heat to the sensor lens through the heating module, preventing lens fogging and allowing for time-saving and labor-saving disassembly and assembly of the heating module, facilitating its maintenance.

Description

Technical Field

[0001] This utility model relates to the field of drone lens technology, specifically to a lens defogging device for an optoelectronic pod. Background Technology

[0002] Optical pods are typically mounted on drones. In cold and humid environments, the surface of the pod's optical lens often fogs up, affecting image clarity and detection range. In extreme cases, condensation on the lens surface can even enter the internal mechanism through the gap between the lens and the housing, causing short circuit damage to the mechanism.

[0003] The traditional solution is to install an optical filter on the front shell of the pod, with a hydrophobic coating on the lens surface. This solution is not only costly, but the additional lens also reduces image quality and increases the size and weight of the pod, which is detrimental to the drone's endurance. Utility Model Content

[0004] In view of the problems existing in the lens defogging device of the current optoelectronic pod, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a lens defogging device for an optoelectronic pod, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A lens defogging device for an optoelectronic pod includes a front shell and a rear shell, which are arranged sequentially from front to back. A lens module is disposed between the front shell and the rear shell. A left cover and a right cover are respectively disposed on both sides of the lens module. A visible light core, an infrared thermal imaging lens, and a laser rangefinder lens are integrated on the side of the module near the front shell. Mounting holes are provided on the surface of the front shell at positions corresponding to the visible light core, the infrared thermal imaging lens, and the laser rangefinder lens. A lens cover is disposed on the front side of the visible light core, and the lens cover engages with the corresponding mounting hole. A heating module is installed on the inner side of the lens cover, and the heating module abuts against the visible light core. Limiting mechanisms are provided on both sides of the lens cover to restrict the movement of the lens cover relative to the mounting hole.

[0008] Preferably, the limiting mechanism includes a stop bar and a stop rod. Grooves are provided on both outer walls of the lens cover. The stop bar is disposed inside the groove. A rotating rod is fixedly sleeved on one end of the stop bar. Both ends of the rotating rod are rotatably connected to the inner wall of the corresponding groove. The end of the stop bar away from the rotating rod is tightly abutted against the inner wall of the corresponding mounting hole. A limiting groove is provided at the bottom of the groove and at the position corresponding to the rotating rod. An internally threaded tube is rotatably provided at the bottom of the limiting groove. A threaded rod is sleeved on the internal thread of the internally threaded tube. The upper end of the threaded rod abuts against the outer end of the stop rod.

[0009] Preferably, the threaded rod has a square hole at the end away from the stop bar, and a square rod is slidably fitted inside the square hole, with one end of the square rod fixedly connected to the bottom of the mounting groove.

[0010] Preferably, a torsion spring is movably sleeved on the rod wall of the rotating rod, and the two ends of the torsion spring are respectively fixedly connected to the inner wall of the corresponding rotating rod and the groove.

[0011] Preferably, the heating module is made of FPC material.

[0012] Preferably, the lens cover is made of high-temperature resistant plastic material.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. This utility model, by installing an FPC heating module on the inside of the lens cover, allows it to directly contact the visible light mechanism, and the heat can be directly conducted to the lens surface, quickly raising the lens temperature to break through the dew point. This effectively prevents the lens from fogging in low temperature and high humidity environments, avoids fog affecting image clarity or condensation seeping into the mechanism and causing short circuits, and ensures the stable operation of the optoelectronic pod.

[0015] 2. This utility model enables convenient assembly and disassembly of the lens cap and heating module through a limiting mechanism: rotating the internal threaded tube drives the threaded rod to move along the square rod, pushing the stop bar to rotate around the rotating rod and abut against the inner wall of the mounting hole, which can quickly fix the lens cap; the limiting mechanism can be released by reversing the operation, without the need for special tools, which greatly simplifies the maintenance and replacement process of the heating module, saving time and effort.

[0016] 3. This utility model eliminates the need for additional optical filter lenses. The lens cap, made of high-temperature resistant plastic, is lightweight, which reduces equipment costs and avoids the attenuation of light caused by the lens. It also reduces the overall weight of the optoelectronic pod, which helps extend the drone's flight time and improves the equipment's practicality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the lens defogging device for an optoelectronic pod proposed in this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0020] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure;

[0021] Figure 4 for Figure 3 Enlarged structural diagram of part A in the middle section;

[0022] Figure 5 for Figure 4 A magnified schematic diagram of the structure of part B in the middle section.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Front shell; 2. Rear shell; 3. Left side cover; 4. Right side cover; 5. Lens cover; 6. Heating module; 7. Lens module; 8. Visible light mechanism; 9. Infrared thermal imaging lens; 10. Laser rangefinder lens; 11. Threaded rod; 12. Stop bar; 13. Rotating rod; 14. Torsion spring; 15. Internally threaded tube; 16. Square rod. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model discloses a lens defogging device for an optoelectronic pod.

[0027] Reference Figure 1-5 A lens defogging device for an optoelectronic pod includes a front shell 1 and a rear shell 2, which are arranged sequentially from front to back. A lens module 7 is disposed between the front shell 1 and the rear shell 2. A left cover 3 and a right cover 4 are respectively disposed on both sides of the lens module 7. A visible light mechanism 8, an infrared thermal imaging lens 9, and a laser rangefinder lens 10 are integrated on the side of the module near the front shell 1. Mounting holes are provided on the surface of the front shell 1 at positions corresponding to the visible light mechanism 8, the infrared thermal imaging lens 9, and the laser rangefinder lens 10. A lens cover 5 is disposed on the front side of the visible light mechanism 8. The lens cover 5 is made of high-temperature resistant plastic and is snapped into the corresponding mounting hole. A heating module 6 is installed on the inner side of the lens cover 5. The heating module 6 is made of FPC material and abuts against the visible light mechanism 8. Limiting mechanisms are provided on both sides of the lens cover 5 to restrict the movement of the lens cover 5 relative to the mounting hole.

[0028] Reference Figure 1-5The limiting mechanism includes a stop bar 12 and a stop rod. Grooves are formed on both outer walls of the lens cover 5. The stop bar 12 is disposed inside the groove. A rotating rod 13 is fixedly sleeved on one end of the stop bar 12. Both ends of the rotating rod 13 are rotatably connected to the inner wall of the corresponding groove. A torsion spring 14 is movably sleeved on the rod wall of the rotating rod 13. In its natural state, the elastic force of the torsion spring 14 causes the rotating rod 13 to rotate and retract the stop bar 12 into the groove. The end of the stop bar 12 furthest from the rotating rod 13 is connected to the inner wall of the corresponding groove. The inner walls of the corresponding mounting holes are tightly abutted together. A limiting groove is opened at the bottom of the groove and at the position corresponding to the rotating rod 13. An internally threaded tube 15 is rotatably provided at the bottom of the limiting groove. A threaded rod 11 is threadedly sleeved inside the internally threaded tube 15. The upper end of the threaded rod 11 abuts against the outer end of the abutment rod. A square hole is opened at the end of the threaded rod 11 away from the stop bar 12. A square rod 16 is slidably sleeved inside the square hole. One end of the square rod 16 is fixedly connected to the bottom of the mounting groove.

[0029] In this utility model, during use, the lens cap 5 is inserted into the corresponding mounting hole of the front shell 1, so that the FPC material heating module 6 on the inner side is tightly attached to the visible light mechanism 8. The knob on the outer wall of the internal thread tube 15 is rotated, and the internal thread tube 15 rotates, causing the threaded rod 11 to move axially along the square rod 16 (the square rod 16 restricts the threaded rod 11 from rotating with the internal thread tube 15). The upper end of the threaded rod 11 pushes the stop bar 12 to rotate around the rotating rod 13, compressing the torsion spring 14 until the end of the stop bar 12 away from the rotating rod 13 is tightly in contact with the inner wall of the mounting hole, thus completing the fixing of the lens cap 5.

[0030] When the optoelectronic pod operates in a low-temperature and humid environment, the heating module 6 generates heat when powered on, which is conducted directly to the lens surface of the visible light core 8, making the lens temperature higher than the ambient dew point and effectively preventing fogging; the infrared thermal imaging lens 9 and the laser rangefinder lens 10 can achieve synchronous defogging through the lens cover and heating module of the same structure, ensuring clear imaging of each lens.

[0031] When maintenance or replacement of the heating module 6 is required, turn the knob in the opposite direction. The internal threaded tube 15 drives the threaded rod 11 to move down. Under the restoring force of the torsion spring 14, the stop bar 12 rotates around the rotating rod 13 and separates from the inner wall of the mounting hole. The lens cover 5 can then be removed from the mounting hole. The operation is convenient. The high-temperature resistant plastic lens cover 5 can withstand the working temperature of the heating module 6, avoid deformation after long-term use, and ensure the stability of the device.

[0032] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lens defogging device for an optoelectronic pod, comprising a front shell (1) and a rear shell (2), characterized in that, The front shell (1) and the rear shell (2) are arranged sequentially from front to back. A lens module (7) is arranged between the front shell (1) and the rear shell (2). A left cover (3) and a right cover (4) are respectively arranged on both sides of the lens module (7). A visible light core (8), an infrared thermal imaging lens (9) and a laser rangefinder lens (10) are integrated on the side of the module near the front shell (1). Mounting holes are opened on the surface of the front shell (1) at positions corresponding to the visible light core (8), the infrared thermal imaging lens (9) and the laser rangefinder lens (10). A lens cover (5) is arranged on the front side of the visible light core (8). The lens cover (5) is snapped into the corresponding mounting hole. A heating module (6) is installed on the inner side of the lens cover (5). The heating module (6) abuts against the visible light core (8). Limiting mechanisms that restrict the movement of the lens cover (5) relative to the mounting hole are arranged on both sides of the lens cover (5).

2. The lens defogging device for the optoelectronic pod according to claim 1, characterized in that, The limiting mechanism includes a stop bar (12) and a stop rod. The outer walls of both sides of the lens cover (5) are provided with grooves. The stop bar (12) is located inside the groove. One end of the stop bar (12) is fixedly sleeved with a rotating rod (13). Both ends of the rotating rod (13) are rotatably connected to the inner wall of the corresponding groove. The end of the stop bar (12) away from the rotating rod (13) is tightly abutted against the inner wall of the corresponding mounting hole. A limiting groove is provided at the bottom of the groove and at the position corresponding to the rotating rod (13). An internal threaded tube (15) is rotatably provided at the bottom of the limiting groove. A threaded rod (11) is threaded inside the internal threaded tube (15). The upper end of the threaded rod (11) abuts against the outer end of the stop rod.

3. The lens defogging device for the optoelectronic pod according to claim 2, characterized in that, The threaded rod (11) has a square hole at one end away from the stop bar (12), and a square rod (16) is slidably fitted inside the square hole. One end of the square rod (16) is fixedly connected to the bottom of the mounting groove.

4. The lens defogging device for the optoelectronic pod according to claim 2, characterized in that, The rod wall of the rotating rod (13) is movably sleeved with a torsion spring (14), and the two ends of the torsion spring (14) are fixedly connected to the corresponding rotating rod (13) and the inner wall of the groove, respectively.

5. The lens defogging device for the optoelectronic pod according to claim 1, characterized in that, The heating module (6) is made of FPC material.

6. The lens defogging device for the optoelectronic pod according to claim 1, characterized in that, The lens cap (5) is made of high-temperature resistant plastic.

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