Rain and snowproof outdoor monitoring camera

By incorporating a moisture-proof mechanism into the outdoor surveillance camera and utilizing an air circulation system with a fan and desiccant, the problem of fogging on the lens glass was solved, enabling clear shooting in humid environments.

CN224401605UActive Publication Date: 2026-06-23SHENZHEN DEFULIAO TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN DEFULIAO TECH CO LTD
Filing Date
2025-08-20
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Outdoor surveillance cameras are prone to fogging on their lens glass in humid environments, which affects the quality of the captured images.

Method used

A moisture-proof mechanism is adopted, including an exhaust fan, a moisture-proof box, and a desiccant. The humid air inside the camera is introduced into the moisture-proof box through air circulation to come into contact with the desiccant, and then flows back into the camera after drying. The airflow is guided by guide components and guide columns to ensure smooth airflow.

Benefits of technology

It effectively reduces the humidity inside the camera, prevents fogging on the lens glass, ensures clear images, and improves the stability of the device in humid environments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224401605U_ABST
    Figure CN224401605U_ABST
Patent Text Reader

Abstract

The utility model provides an outdoor monitoring camera of rain and snow prevention belongs to monitoring camera technical field, include. The utility model discloses through setting up the air draught fan and the dampproof box, the air draught fan runs, and the camera body in the humid air passes through the flow guide spare and enters the dampproof box and contacts the drying agent, and the humid air is dried and then passes through the flow guide spare and discharges outside the dampproof box, and the dry air refluxes to the camera body finally, realizes the drying treatment to the air in the camera body, prevents the glass on camera lens and appears the fog, guarantees the picture quality of shooting.
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Description

Technical Field

[0001] This utility model relates to the field of surveillance camera technology, and in particular to an outdoor surveillance camera that is resistant to rain and snow. Background Technology

[0002] Surveillance cameras are used to capture images of specific areas in real time and record relevant video information. They can assist in security and prevention, detect abnormal situations in a timely manner, provide video evidence for incident investigation, and can also be used in scenarios such as traffic management and production supervision to achieve dynamic monitoring and management of target areas. Surveillance cameras are usually equipped with a cover, with the side of the cover extending out and located above the camera to protect the camera from rain and snow.

[0003] When commonly used rain and snow-proof outdoor surveillance cameras are in use, if they are exposed to a humid environment for a long time, the inside of the camera will become damp, and fog will easily appear on the lens glass, affecting the quality of the captured image. Therefore, this application provides a rain and snow-proof outdoor surveillance camera to meet this need. Summary of the Invention

[0004] This invention provides a rain and snow resistant outdoor surveillance camera to solve the problem that fogging easily appears on the lens glass after the inside of the surveillance camera gets damp, affecting the quality of the captured image.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A rain and snow resistant outdoor surveillance camera includes a camera body and a top cover mounted on the camera body, and further includes:

[0007] The moisture-proof mechanism includes a mounting bracket fixed to the bottom of the top cover, an exhaust fan installed inside the mounting bracket, a moisture-proof box fixed to the side of the mounting bracket, a desiccant filled inside the moisture-proof box, and several air guides inside the moisture-proof box. After the exhaust fan is turned on, the air inside the camera body enters the moisture-proof box through the air guides, comes into contact with the desiccant, and is then discharged to the outside of the moisture-proof box through the air guides.

[0008] Preferably, the guide component includes several round tubes fixed inside the moisture-proof box. Through holes are opened on the inner wall of the moisture-proof box corresponding to the two ends of the round tubes. A sealing block is fixed in the middle of the inside of the round tubes. Through groove one and through groove two are opened on the outer wall of the round tubes respectively. The sealing block is located between through groove one and through groove two. The outer wall of the round tubes is wrapped with a barrier net.

[0009] Preferably, several of the circular tubes are staggered and distributed inside the moisture-proof box.

[0010] Preferably, the barrier is a mesh screen.

[0011] Preferably, the diameter of the through hole is the same as the inner diameter of the circular tube.

[0012] Preferably, a first guide column and a second guide column are fixed on both sides of the sealing block, with the first guide column corresponding to the first through groove and the second guide column corresponding to the second through groove.

[0013] Preferably, both the first and second guide columns are in the shape of a hexagonal frustum.

[0014] Preferably, the moisture-proof box is fixed to the side of the mounting bracket by bolts.

[0015] Preferably, the top of the upper cover has a rounded chamfer.

[0016] Preferably, the desiccant is silica gel granules.

[0017] Compared with the prior art, this utility model has at least the following beneficial effects:

[0018] In the above solution, by setting up an exhaust fan and a desiccant box, after the exhaust fan is running, the humid air inside the camera body enters the desiccant box through the guide component and comes into contact with the desiccant. After the humid air is dried, it is discharged outside the desiccant box through the guide component. Finally, the dried air flows back into the camera body, thereby achieving the drying treatment of the air inside the camera body, preventing fogging on the glass of the camera lens, and ensuring the quality of the captured image.

[0019] By setting up guide columns one and two, when air enters the circular tube, it is guided by guide column one and flows into the moisture-proof box through channel one. After being dried by the desiccant, the air enters the circular tube through channel two and is then guided by guide column two before smoothly exiting the circular tube. By guiding the air flow through guide columns one and two, the air flow in the circular tube is improved, making the air flow in the moisture-proof box smoother and further improving the air drying effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the moisture-proof box of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the moisture-proof box of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the barrier section of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the circular tube portion of this utility model.

[0025] In the diagram: 1. Camera body; 2. Top cover; 3. Moisture-proof mechanism; 4. Mounting bracket; 5. Exhaust fan; 6. Moisture-proof box; 7. Round tube; 8. Through-slot one; 9. Through-slot two; 10. Guide column one; 11. Guide column two; 12. Sealing block; 13. Barrier net; 14. Guide component.

[0026] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0027] The following is a detailed description of a rain and snow-proof outdoor surveillance camera provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0028] like Figures 1-5 As shown, an embodiment of this utility model provides a rain and snow resistant outdoor surveillance camera, including a camera body 1 and a top cover 2 mounted on the camera body 1. The top cover 2 has a rounded chamfer at the top and also includes:

[0029] The moisture-proof mechanism 3 includes a mounting bracket 4 fixed to the bottom of the top cover 2. An exhaust fan 5 is installed inside the mounting bracket 4, powered by the camera body 1. A moisture-proof box 6 is fixed to the side of the mounting bracket 4, filled with desiccant, specifically silica gel granules. Several air guides 14 are installed inside the moisture-proof box 6. When the exhaust fan 5 operates, air from inside the camera body 1 enters the moisture-proof box 6 through the air guides 14, comes into contact with the desiccant, and is then discharged outside the moisture-proof box 6 through the air guides 14. The mounting bracket 4 provides a stable mounting base for the exhaust fan 5 and the moisture-proof box 6. When the exhaust fan 5 operates, it drives the air inside the camera body 1 to form a circulating airflow, guiding the humid air into the moisture-proof box 6 through the air guides 14, allowing the air to fully contact the desiccant to remove moisture. The dried air then flows back to the camera body 1 through the air guides 14, effectively reducing internal air humidity, preventing fogging of the lens glass, ensuring clear shooting images, and improving the stability of the equipment in humid environments.

[0030] like Figures 2-5As shown in this embodiment, the airflow guide 14 includes several round tubes 7 fixed inside the desiccant box 6. The inner wall of the desiccant box 6 has through holes at both ends of the round tubes 7. A sealing block 12 is fixed in the middle of the inside of the round tubes 7. The outer wall of the round tubes 7 has through groove 1 8 and through groove 2 9 respectively. The sealing block 12 is located between through groove 1 8 and through groove 2 9. The outer wall of the round tubes 7 is wrapped with a mesh 13. The round tubes 7 are connected to the inside of the camera body 1 through the through holes at both ends. The sealing block 12 divides the inside of the round tubes 7 into independent channels, so that humid air can only enter the desiccant box 6 through through groove 1 8 and dry air can return to the round tubes 7 through through groove 2 9. The mesh 13 can prevent the desiccant in the desiccant box 6 from entering the round tubes 7 and causing blockage, thus ensuring smooth airflow.

[0031] like Figure 4 As shown in this embodiment, several round tubes 7 are staggered and distributed inside the moisture-proof box 6 to ensure that the air flowing out from the through groove 8 can fully contact the desiccant, thereby ensuring the drying effect on the air.

[0032] like Figure 4 As shown in this embodiment, the barrier 13 is a mesh screen, which intercepts the desiccant and prevents it from entering the circular tube 7.

[0033] like Figure 2 As shown, in this embodiment, the diameter of the through hole is the same as the inner diameter of the circular tube 7 to ensure normal airflow.

[0034] like Figure 2 and Figure 5 As shown in this embodiment, the sealing block 12 is fixed with a first guide column 10 and a second guide column 11 on both sides. The first guide column 10 corresponds to the first through groove 8, and the second guide column 11 corresponds to the second through groove 9. The first guide column 10 can guide the humid air entering the circular tube 7, so that it enters the desiccant box 6 through the first through groove 8 and comes into contact with the desiccant. The second guide column 11 can guide the dry air entering the circular tube 7 through the second through groove 9 to be discharged smoothly, reduce airflow resistance, improve the airflow in the circular tube 7 and the desiccant box 6, and ensure that the dried air quickly flows back to the camera body 1, further enhancing the desiccant effect.

[0035] like Figure 5 As shown in this embodiment, both the first guide column 10 and the second guide column 11 are hexagonal frustum-shaped. The hexagonal frustum-shaped guide columns 10 and 11 have a gradually changing cross-sectional structure, which can guide the airflow direction more efficiently, allowing humid air to pass through the first channel 8 more smoothly into the moisture-proof box 6, and dry air to be quickly discharged from the round tube 7 after being guided by the second guide column 11.

[0036] like Figure 3As shown in this embodiment, the moisture-proof box 6 is fixed to the side of the mounting bracket 4 by bolts. The bolt fixing method facilitates the disassembly and assembly of the moisture-proof box 6, thereby making it easy to replace the moisture-proof box 6.

[0037] Working principle: When the exhaust fan 5 is running, the humid air inside the camera body 1 is guided to the guide component 14 and enters the moisture box 6 through the guide component 14. The sealing block 12 in the middle of the round tube 7 divides the inside of the round tube 7. The first channel 8 and the second channel 9 on both sides are used for air entry and exit, respectively. The outer wall of the round tube 7 is wrapped with a mesh 13 to prevent the desiccant from entering the round tube 7. Since the sealing block 12 has hexagonal frustum-shaped guide columns 10 and 21 on both sides, which correspond to the first channel 8 and the second channel 9, respectively, after the air enters the round tube 7, it enters the moisture box 6 through the first channel 8 under the guidance of the first channel 10, and comes into full contact with the desiccant to achieve air drying. The dried air enters the round tube 7 through the second channel 9, and after being guided by the second channel 11, it is smoothly discharged from the round tube 7 and finally flows back to the camera body 1 through the exhaust fan 5.

[0038] Through this air circulation drying process, the humidity of the air inside the camera body 1 is effectively reduced, preventing fogging on the lens glass and ensuring the quality of the captured images.

[0039] When the moisture-proof box 6 needs to be replaced, open the latch on the side of the top cover 2, open the top cover 2, then remove the bolts that fix the moisture-proof box 6, and then fix the new moisture-proof box 6 to the side of the mounting bracket 4 with bolts. Then close the top cover 2 and fasten it with the latch.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A rain and snow resistant outdoor surveillance camera, comprising a camera body (1) and a top cover (2) mounted on the camera body (1), characterized in that, Also includes: Moisture-proof mechanism (3), the moisture-proof mechanism (3) includes a mounting bracket (4) fixed to the bottom of the top cover (2), an exhaust fan (5) is installed in the mounting bracket (4), a moisture-proof box (6) is fixed on the side of the mounting bracket (4), the moisture-proof box (6) is filled with desiccant, and a number of guides (14) are provided in the moisture-proof box (6). After the exhaust fan (5) is running, the air in the camera body (1) enters the moisture-proof box (6) through the guides (14) and comes into contact with the desiccant, and then is discharged to the outside of the moisture-proof box (6) through the guides (14).

2. The rain and snow resistant outdoor surveillance camera according to claim 1, characterized in that, The guide component (14) includes several round tubes (7) fixed inside the moisture-proof box (6). The inner wall of the moisture-proof box (6) is provided with through holes at both ends of the round tubes (7). A sealing block (12) is fixed in the middle of the inside of the round tubes (7). The outer wall of the round tubes (7) is provided with through groove one (8) and through groove two (9). The sealing block (12) is located between through groove one (8) and through groove two (9). The outer wall of the round tubes (7) is wrapped with a barrier net (13).

3. The rain and snow resistant outdoor surveillance camera according to claim 2, characterized in that, Several of the aforementioned round tubes (7) are staggered and distributed inside the moisture-proof box (6).

4. The rain and snow-proof outdoor surveillance camera according to claim 2, characterized in that, The barrier net (13) is a mesh net.

5. The rain and snow resistant outdoor surveillance camera according to claim 2, characterized in that, The diameter of the through hole is the same as the inner diameter of the round tube (7).

6. The rain and snow-proof outdoor surveillance camera according to claim 2, characterized in that, The sealing block (12) has a flow guide column one and a flow guide column two fixed on both sides respectively. The flow guide column one corresponds to the through groove one (8), and the flow guide column two corresponds to the through groove two (9).

7. The rain and snow resistant outdoor surveillance camera according to claim 6, characterized in that, Both the first and second guide columns are hexagonal frustum shapes.

8. The rain and snow resistant outdoor surveillance camera according to claim 1, characterized in that, The moisture-proof box (6) is fixed to the side of the mounting bracket (4) by bolts.

9. The rain and snow resistant outdoor surveillance camera according to claim 1, characterized in that, The top of the cover (2) has a rounded chamfer.

10. The rain and snow-proof outdoor surveillance camera according to claim 1, characterized in that, The desiccant is silica gel desiccant granules.