A camera with defogging function

Abstract

This invention discloses a camera with defogging function, including a mounting housing. A rotating block is fixedly connected to one side of the mounting housing, and a mounting base connected to a wall is rotatably connected to the surface of the rotating block. A camera lens is mounted on the other side of the mounting housing. In low-temperature weather, the cooling fan inside the mounting housing is tilted towards the camera lens, so that when the cooling fan rotates, the heat generated by the circuit board is carried out through the ventilation holes and blown onto the surface of the camera lens through the end face of the protective cover, thereby heating the surface of the lens and preventing a large amount of fog from forming on the lens surface, which would affect the image captured by the camera lens. In hot weather, the cooling fan is tilted to the other side, thereby preventing the hot air generated by heat dissipation in high-temperature weather from blowing onto the surface of the camera lens and forming a heat wave, which would affect the image captured by the camera lens.

Description

Technical Field

[0001] This invention relates to the field of camera technology, specifically to a camera with a defogging function. Background Technology

[0002] A camera is a video input device widely used in real-time monitoring and other applications. Cameras can be divided into two main categories: digital cameras and analog cameras. Generally, cameras have basic functions such as video recording / transmission and still image capture. They capture images through a lens, and then the image is processed by the photosensitive components, circuitry, and control components inside the camera and converted into digital signals that can be recognized by a computer. The signals are then input to the computer via a parallel port, and the software then reconstructs the image. Most camera applications are outdoors, so during use, temperature differences can cause fogging on the camera, which reduces the clarity of the images captured.

[0003] A Chinese patent discloses a 5G camera with heat dissipation and defogging functions (publication number: CN110572560A). This patent uses a defogging mechanism to remove fog from the protective cover, improving the clarity of the camera's images. The heat dissipation mechanism can dissipate heat from inside the camera. However, in high-temperature environments, since the camera still needs heat dissipation, the heat dissipation method in this patent blows heat onto the lens surface. The excessively high temperature of the lens surface at this time will generate air waves, thereby distorting the image captured by the camera and reducing its clarity. Furthermore, when the camera first starts working, blowing out hot air is not enough to quickly remove the fog that has already adhered to the camera. Summary of the Invention

[0004] The purpose of this invention is to provide a camera with a defogging function. In low-temperature weather, the cooling fan inside the housing is tilted towards the camera lens. This allows the fan to carry away the heat generated by the circuit board through the ventilation holes and blow it onto the surface of the camera lens through the end face of the protective cover, thereby heating the lens surface and preventing excessive fogging from affecting the image captured by the camera. In hot weather, the cooling fan tilts to the other side to prevent the hot air generated by heat dissipation from blowing onto the surface of the camera lens and creating heat waves that could affect the image captured by the camera.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A camera with defogging function includes a mounting housing. A rotating block is fixedly connected to one side of the mounting housing, and a mounting base connected to a wall is rotatably connected to the surface of the rotating block. A camera lens is mounted on the other side of the mounting housing. A rotatable cooling fan is provided inside the mounting housing. First fixing sleeves are fixedly connected to both sides of the surface of the cooling fan. One end of the first fixing sleeve is rotatably connected to the inner surface of the mounting housing. Several ventilation holes are obliquely opened on the surface of the mounting housing. A protective cover plate is provided on the surface of the mounting housing. The end face of the protective cover plate is arc-shaped. Several fixing posts for fixing circuit boards are fixedly connected to the inner wall of the mounting housing on both sides of the cooling fan.

[0007] As a further aspect of the present invention: an arc-shaped placement cavity is provided on one side of the mounting housing, a connecting rod is fixedly connected to the inner surface of the placement cavity, an arc-shaped plate is slidably connected to the inner surface of the placement cavity, a thermal spring is sleeved on the surface of the connecting rod, one end of the thermal spring is slidably connected to one side of the arc-shaped plate, a push rod is fixedly connected to one side of the arc-shaped plate, and one end of the push rod passes through the placement cavity and is fixedly connected to the bottom of the cooling fan.

[0008] As a further aspect of the present invention: a connecting sleeve for fixing the camera lens is provided on the surface of the camera lens and on one side of the inner wall of the mounting housing, and a guide strip is fixedly connected to the inner surface of the protective cover.

[0009] As a further aspect of the present invention: mounting strips are fixedly connected to both sides of the surface of the mounting housing, and mounting grooves are provided on the relatively distant sides of the two mounting strips; sliding strips are fixedly connected to both sides of the inner wall of the protective cover, and the outer surface of the sliding strips is adapted to the inner surface of the mounting grooves.

[0010] As a further aspect of the present invention: a second fixing sleeve is fixedly connected to the bottom of the mounting housing, and a rotating rod that can rotate is provided inside the second fixing sleeve. A follower rod is fixedly connected to one end of the rotating rod, and a wiper blade for hanging water droplets is fixedly connected to one side of the follower rod.

[0011] As a further embodiment of the present invention: a connecting seat is fixedly connected to the bottom of the mounting housing, a rotating motor is fixedly connected to the inner surface of the connecting seat, a rotating disk is fixedly connected to the output end of the rotating motor, a sliding column is fixedly connected to one side of the rotating disk, a swing rod capable of swinging is provided on the surface of the sliding column, a fixing hole is provided through the surface of the swing rod, and the surface of the fixing hole is fixedly connected to the other end of the rotating rod.

[0012] As a further aspect of the present invention: a sliding groove is provided through one side of the swing rod, and the surface of the sliding groove is slidably connected to the surface of the sliding column.

[0013] As a further embodiment of the present invention: a mounting frame is fixedly connected to one side of the mounting housing, a heating groove for ventilation is provided on the surface of the mounting frame, a plurality of conductive posts are fixedly connected to the inner surface of the heating groove, and a heating wire is provided between the conductive posts on adjacent sides.

[0014] The beneficial effects of this invention are:

[0015] 1. In this invention, a protective cover is connected to the surface of the mounting housing, forming a ventilation channel on the surfaces of the mounting housing, the protective cover, and the camera lens. Several inclined ventilation holes are opened on the surface of the mounting housing. In conjunction with a temperature-sensitive spring inside the cavity, the cooling fan is tilted towards the camera lens in low-temperature weather. This allows the fan to carry away the heat generated by the circuit board through the ventilation holes and blow it onto the surface of the camera lens through the end face of the protective cover, thereby heating the lens surface and preventing excessive fogging that could affect the camera's image capture. In hotter weather, the cooling fan tilts to the other side to prevent the hot air generated during heat dissipation from blowing onto the camera lens surface and creating a heat wave that could affect the image captured by the camera.

[0016] 2. In this invention, by setting a second fixing sleeve at the bottom of the mounting housing, the rotation of the rotating motor causes the rotating disk to drive the sliding column to slide on the inner surface of the sliding groove, so that the rotating rod in the fixing hole swings, thereby causing the wiper blade to scrape off the water droplets formed on the surface of the camera lens due to excessive water mist. Through this structure, the wiper blade swings back and forth, which can quickly remove the mist on the surface of the camera lens, thereby enabling the camera lens to capture effective images more quickly, thus improving its practicality.

[0017] 3. In this invention, by setting a mounting frame on the camera lens, and with the conductive post in the mounting frame and the heating wire on the conductive post, when the wind passes through the heating groove, it can be reheated by the heating wire, thereby increasing the temperature of the airflow blowing on the surface of the camera lens, further accelerating the temperature rise of the camera lens surface, and further improving its practicality. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the internal structure of the protective cover plate in this invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the mounting housing in this invention;

[0021] Figure 3This is a schematic diagram showing the connection between the camera lens and the protective cover in this invention;

[0022] Figure 4 This is a schematic diagram of the external structure of the rotating disk in this invention;

[0023] Figure 5 This is the present invention. Figure 1 Enlarged view of the structure of part A in the middle.

[0024] In the diagram: 1. Mounting housing; 2. Rotating block; 3. Mounting base; 4. Camera lens; 5. Protective cover; 6. Placement cavity; 7. Connecting rod; 8. Thermosensitive spring; 9. Fixing column; 10. Cooling fan; 11. Ventilation hole; 12. Push rod; 13. Arc plate; 14. Connecting sleeve; 15. First fixing sleeve; 16. Rotating rod; 17. Follower rod; 18. Wiper blade; 19. Connecting base; 20. Rotating motor; 21. Rotating disk; 22. Fixing hole; 23. Swing rod; 24. Sliding groove; 25. Sliding column; 26. Mounting frame; 27. Heating groove; 28. Conductive column; 29. ​​Heating wire; 30. Mounting strip; 31. Mounting groove; 32. Sliding strip; 33. Guide strip; 34. Second fixing sleeve. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-5As shown, this invention is a camera with defogging function, including a mounting housing 1. A rotating block 2 is fixedly connected to one side of the mounting housing 1, and a mounting base 3 connected to a wall is rotatably connected to the surface of the rotating block 2. A camera lens 4 is mounted on the other side of the mounting housing 1. A rotatable cooling fan 10 is provided inside the mounting housing 1. First fixing sleeves 15 are fixedly connected to both sides of the surface of the cooling fan 10. One end of the first fixing sleeve 15 is rotatably connected to the inner surface of the mounting housing 1. Several ventilation holes 11 are obliquely opened on the surface of the mounting housing 1. The ventilation holes 11 are arranged in two sets, and the two sets of ventilation holes 11 are obliquely inclined to both sides. A protective cover plate 5 is provided on the surface of the mounting housing 1. The protective cover plate 5, the surface of the mounting housing 1, and the surface of the camera lens 4 form an air duct for heat dissipation, eliminating the need for additional heat dissipation pipes. When the outer surface of the mounting housing 1... When the ambient temperature is low, the cooling fan 10 tilts to one side of the camera lens 4, so that the generated hot air can be blown onto the surface of the camera lens 4 to prevent fogging. When the ambient temperature of the mounting housing 1 is high, the cooling fan 10 tilts to the other side, and the hot air generated by the cooling is discharged through another set of ventilation holes 11, so as to prevent the surface temperature of the camera lens 4 from being too high and generating hot air waves that affect the image captured by the camera lens 4. The end face of the protective cover plate 5 is set to be an arc shape that tilts to one side of the camera lens 4, so that the airflow can blow onto the surface of the camera lens 4. Several fixing posts 9 for fixing circuit boards are fixedly connected to the inner wall of the mounting housing 1 on both sides of the cooling fan 10, fixing the circuit board with high heat generation to one side of the cooling fan 10, so that when the cooling fan 10 rotates, more heat can be blown out of the mounting housing 1.

[0027] The mounting housing 1 has an arc-shaped placement cavity 6 on one side. A connecting rod 7 is fixedly connected to the inner surface of the placement cavity 6, and an arc-shaped plate 13 is slidably connected to the inner surface of the placement cavity 6. A thermal spring 8 is sleeved on the surface of the connecting rod 7. The thermal spring 8 is made of two materials, which stretch when heated and shorten when cooled. This is existing technology and will not be described in detail here. One end of the thermal spring 8 is slidably connected to one side of the arc-shaped plate 13. A push rod 12 is fixedly connected to one side of the arc-shaped plate 13. When the thermal spring 8 shortens, the arc-shaped plate 13 slides on the inner surface of the placement cavity 6, causing the cooling fan 10 to tilt towards the side closer to the camera lens 4. Conversely, the cooling fan 10 tilts towards the other side. By directly connecting the placement cavity 6 to the outside, the thermal spring 8 can change according to the change in the external temperature. This method can adapt to the external temperature and cause the cooling fan 10 to tilt. One end of the push rod 12 passes through the placement cavity 6 and is fixedly connected to the bottom of the cooling fan 10.

[0028] A connecting sleeve 14 for fixing the camera lens 4 is provided on the surface of the camera lens 4 and on one side of the inner wall of the mounting housing 1. A guide strip 33 is fixedly connected to the inner surface of the protective cover plate 5. The guide strip 33 is used to isolate the blown airflow and prevent the airflow blown by the cooling fan 10 in the tilted state from blowing to the other side.

[0029] In order to fix the protective cover plate 5, mounting strips 30 are fixedly connected to both sides of the surface of the mounting housing 1. Mounting grooves 31 are opened on the relatively far sides of the two mounting strips 30. Sliding strips 32 are fixedly connected to both sides of the inner wall of the protective cover plate 5. The outer surface of the sliding strip 32 is adapted to the inner surface of the mounting groove 31. The mounting groove 31 and the sliding strip 32 are interference-fitted.

[0030] The bottom of the mounting housing 1 is fixedly connected to a second fixing sleeve 34. The interior of the second fixing sleeve 34 is provided with a rotating rod 16 that can rotate. One end of the rotating rod 16 is fixedly connected to a follower rod 17. One side of the follower rod 17 is fixedly connected to a wiper blade 18 for hanging water droplets. By swinging the wiper blade 18, water droplets condensed on the surface of the camera lens 4 can be quickly wiped off.

[0031] In order to enable the rotating rod 16 inside the second fixed sleeve 34 to swing, a connecting seat 19 is fixedly connected to the bottom of the mounting housing 1. A rotating motor 20 is fixedly connected to the inner surface of the connecting seat 19. A rotating disk 21 is fixedly connected to the output end of the rotating motor 20. A sliding column 25 is fixedly connected to one side of the rotating disk 21. A swinging rod 23 is provided on the surface of the sliding column 25. A fixing hole 22 is opened through the surface of the swinging rod 23. The surface of the fixing hole 22 is fixedly connected to the other end of the rotating rod 16. A sliding groove 24 is opened through one side of the swinging rod 23. The surface of the sliding groove 24 is slidably connected to the surface of the sliding column 25.

[0032] In order to quickly remove fog from the surface of the camera lens 4, a mounting frame 26 is fixedly connected to one side of the mounting housing 1. The surface of the mounting frame 26 is provided with a heating groove 27 for ventilation. Several conductive posts 28 are fixedly connected to the inner surface of the heating groove 27. A heating wire 29 is provided between adjacent conductive posts 28. When the airflow passes through the heating groove 27, it can be heated, thereby improving its defogging effect.

[0033] The working principle of this invention is as follows: The sliding strip 32 inside the protective cover plate 5 is retracted into the mounting groove 31, thereby connecting the protective cover plate 5. At this time, the inner surface of the protective cover plate 5, the two sides of the guide strip 33, and the surface of the mounting housing 1 form an air outlet channel. The rotating motor 20 inside the connecting seat 19 can be controlled to rotate, thereby driving the rotating disk 21 to rotate. At this time, the sliding column 25 slides on the inner surface of the sliding groove 24, further driving the swing rod 23 to swing around the fixing hole 22, further driving the second fixing sleeve 34 to swing, thereby causing the wiper blade 18 aligned with the follower rod 17 to swing within the mounting frame 26, thereby scraping off the water droplets formed by the fog on the surface of the camera lens 4. When the camera is working in a low-temperature environment, since the placement cavity 6 is connected to the outside, the thermal spring 8 is in a shortened state under the action of low temperature. At this time, the arc plate 13 slides towards the side closer to the connecting rod 7 inside the placement cavity 6, thereby... The push rod 12 drives the first fixed sleeve 15 on the cooling fan 10 to rotate, thereby tilting the cooling fan 10. At this time, the cooling fan 10 is activated, thereby blowing the heat generated by the circuit board fixed on the fixed post 9 out from the ventilation hole 11 on one side and transporting it between the protective cover plate 5 and the surface of the mounting housing 1 and the camera lens 4. It is also blown out through the arc-shaped end face of the protective cover plate 5. At this time, the conductive post 28 is activated to heat the heating wire 29. The blown air is reheated after passing through the heating groove 27 and blown onto the surface of the camera lens 4, dissipating excess heat in the mounting housing 1 while preventing excessive fogging on the surface of the camera lens 4 from obstructing the lens. Meanwhile, when the outside temperature is high, the thermal spring 8 extends, thereby pushing the cooling fan 10 on the push rod 12 to rotate to the other side, further causing the cooling fan 10 to blow the hot air in the mounting housing 1 out from the surface of the mounting housing 1 and the protective cover plate 5, thereby dissipating heat.

[0034] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A camera with defogging function, comprising a mounting housing (1), wherein a rotating block (2) is fixedly connected to one side of the mounting housing (1), and a mounting base (3) connected to a wall is rotatably connected to the surface of the rotating block (2), characterized in that, A camera lens (4) is installed on the other side of the mounting housing (1). A rotatable heat dissipation fan (10) is provided inside the mounting housing (1). A first fixing sleeve (15) is fixedly connected to both sides of the surface of the heat dissipation fan (10). One end of the first fixing sleeve (15) is rotatably connected to the inner surface of the mounting housing (1). Several ventilation holes (11) are obliquely opened on the surface of the mounting housing (1). A protective cover plate (5) is provided on the surface of the mounting housing (1). The end face of the protective cover plate (5) is set as arc. Several fixing posts (9) for fixing the circuit board are fixedly connected to the inner wall of the mounting housing (1) and on both sides of the heat dissipation fan (10). The mounting housing (1) has an arc-shaped placement cavity (6) on one side. A connecting rod (7) is fixedly connected to the inner surface of the placement cavity (6). An arc plate (13) is slidably connected to the inner surface of the placement cavity (6). A thermal spring (8) is sleeved on the surface of the connecting rod (7). One end of the thermal spring (8) is slidably connected to one side of the arc plate (13). A push rod (12) is fixedly connected to one side of the arc plate (13). One end of the push rod (12) passes through the placement cavity (6) and is fixedly connected to the bottom of the cooling fan (10).

2. A camera with defogging function according to claim 1, characterized in that, A connecting sleeve (14) for fixing the camera lens (4) is provided on the surface of the camera lens (4) and on one side of the inner wall of the mounting housing (1). A guide strip (33) is fixedly connected to the inner surface of the protective cover (5).

3. A camera with defogging function according to claim 1, characterized in that, Mounting strips (30) are fixedly connected to both sides of the surface of the mounting housing (1). Mounting grooves (31) are provided on the relatively far sides of the two mounting strips (30). Sliding strips (32) are fixedly connected to both sides of the inner wall of the protective cover (5). The outer surface of the sliding strips (32) is adapted to the inner surface of the mounting grooves (31).

4. A camera with defogging function according to claim 1, characterized in that, The bottom of the mounting housing (1) is fixedly connected to a second fixing sleeve (34), and the interior of the second fixing sleeve (34) is provided with a rotating rod (16) that can rotate. One end of the rotating rod (16) is fixedly connected to a follower rod (17), and one side of the follower rod (17) is fixedly connected to a wiper blade (18) for hanging water droplets.

5. A camera with defogging function according to claim 4, characterized in that, The bottom of the mounting housing (1) is fixedly connected to a connecting seat (19), and a rotating motor (20) is fixedly connected to the inner surface of the connecting seat (19). A rotating disk (21) is fixedly connected to the output end of the rotating motor (20). A sliding column (25) is fixedly connected to one side of the rotating disk (21). A swing rod (23) that can swing is provided on the surface of the sliding column (25). A fixing hole (22) is opened through the surface of the swing rod (23). The surface of the fixing hole (22) is fixedly connected to the other end of the rotating rod (16).

6. A camera with defogging function according to claim 5, characterized in that, A sliding groove (24) is provided through one side of the swing rod (23), and the surface of the sliding groove (24) is slidably connected to the surface of the sliding column (25).

7. A camera with defogging function according to claim 1, characterized in that, A mounting frame (26) is fixedly connected to one side of the mounting housing (1). A heating groove (27) for ventilation is opened on the surface of the mounting frame (26). A number of conductive posts (28) are fixedly connected to the inner surface of the heating groove (27). A heating wire (29) is arranged between the conductive posts (28) on adjacent sides.

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