Starlight night vision camera module

Abstract

The utility model relates to the technical field of cameras, in particular to a starlight night vision camera module which comprises a supporting shell, one end of the supporting shell is movably connected with two C-shaped plates in an inserted mode, the two C-shaped plates are spliced with each other, a circuit board is detachably clamped and fixed between the two C-shaped plates, a lens module is fixedly installed on the front side of the circuit board, and the lens module is connected with the supporting shell. A rectangular frame is arranged on the rear side of the circuit board, a heat conducting plate is fixed in the rectangular frame, and cooling fins are fixed on the outer side of the heat conducting plate. According to the utility model, the heat conduction plate is fixedly arranged on the rear side of the circuit board in the camera module, the heat dissipation fins are fixedly arranged on the rear side of the heat conduction plate, the heat conduction plate can transmit heat on the circuit board to the positions of the heat dissipation fins, and external air enters the air guide pipe through the air inlet pipe and then is blown to the positions of the heat dissipation fins from the air guide pipe; the heat around the heat dissipation fins in the supporting shell can be conveniently volatilized through the first filter screen on the rear cover, and the heat dissipation efficiency of the camera module can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cameras, in particular to a starlight night vision camera module. Background Art

[0002] The starlight night vision camera module is a camera module that integrates specific technologies. The core principle mainly relies on high-performance image intensifiers, such as low-light sensors, to amplify weak light signals, so that the camera can clearly capture images at night or in low-light environments. The starlight night vision camera module can be widely used in automobiles, mainly due to its unique technical advantages and excellent performance at night or in low-light environments, which facilitates drivers to clearly see road conditions at night or in low-light environments, thereby improving driving safety.

[0003] The circuit board of the starlight night vision camera module usually has a variety of electrical components installed to assist the camera module in its operation, such as installing a low-light sensor to amplify weak light signals; installing an ambient light sensor to sense the ambient light intensity; installing an acceleration sensor to detect the movement state of the camera module, such as vibration or shaking; the camera module will work simultaneously during long-term driving of the vehicle, and the various electrical components on the circuit board will generate excessive heat if they work for a long time. If this heat is not dissipated in time, it will cause the temperature inside the module to rise. High temperature may damage the electronic components in the module, reduce their service life, and even cause the camera to malfunction;

[0004] At present, the structure for heat dissipation of the circuit board on the starlight night vision camera module basically presets a heat dissipation mesh on the back side of the circuit board, and promotes airflow around the circuit board through the heat dissipation mesh to achieve the effect of assisting the heat dissipation of the starlight night vision camera module circuit board. This type of heat dissipation structure has a simple structure and cannot effectively utilize the airflow generated during the driving of the vehicle to further improve the heat dissipation effect of the starlight night vision camera module itself. Utility Model Content

[0005] The purpose of the utility model is to provide a starlight night vision camera module to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A starlight night vision camera module includes a support shell. At one end of the support shell, two spliced C-shaped plates are movably inserted. A circuit board is detachably clamped and fixed between the two C-shaped plates. A lens module is fixedly installed on the front side of the circuit board. A wire is electrically connected to the rear side of the circuit board. A rectangular frame is arranged on the rear side of the circuit board. A heat conducting plate fixedly installed with the rear side of the circuit board is fixed inside the rectangular frame. Heat dissipation fins are fixed on the outer side of the heat conducting plate. An air inlet pipe is communicated and fixed to the bottom of the C-shaped plate. A duct communicated with the air inlet pipe is fixed between the bottoms of the two C-shaped plates. A rear cover is detachably fixed to one end of the two C-shaped plates away from the lens module by screws. An installation component is fixed on the outer side of the rear cover.

[0008] Furthermore: One end of the air inlet pipe is communicated and fixed with an air hood, and a second filter screen is detachably fixed to the end of the air inlet pipe close to the air hood.

[0009] Furthermore: A rubber ring is embedded and fixed at one end of the air inlet pipe, and a lens body arranged inside the rubber ring is fixedly installed at one end of the lens module.

[0010] Furthermore: A first limiting strip and a second limiting strip for limiting the positions of the circuit board and the heat dissipation fins are fixed on the inner side of the C-shaped plate. A convex block is fixed on the top of one C-shaped plate, and a groove for the convex block to be movably inserted is opened on the top of the other C-shaped plate.

[0011] Furthermore: The duct is composed of two spliced half pipes. The air outlet end of the duct faces the heat dissipation fins, and a first filter screen is embedded and fixed on the outer side of the rear cover.

[0012] Furthermore: A battery block electrically connected to the circuit board is arranged between the two C-shaped plates. Two third limiting strips and supporting blocks are fixed on the inner side of the C-shaped plate. The third limiting strips are arranged close to the outer side of the battery block, and the supporting blocks are arranged close to the bottom surface of the battery block.

[0013] Furthermore: The installation component includes two connecting seats both fixedly connected to the rear cover. The top of the connecting seat is detachably and rotatably connected to a rotating seat by screws. A substrate is fixed between the tops of the two rotating seats.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. By installing and fixing a heat conduction plate on the rear side of the circuit board, and installing and fixing heat dissipation fins on the rear side of the heat conduction plate, the heat conduction plate can transfer the heat on the circuit board to the heat dissipation fins and volatilize it, initially improving the heat dissipation effect of the circuit board. By connecting and fixing an air inlet pipe at the bottom of the support shell, and connecting and fixing a duct at the top of the air inlet pipe, during the movement of the vehicle with the camera module, the external air flow enters the inside of the duct through the air inlet pipe, and then blows from the duct to the heat dissipation fins, facilitating the hot air inside the support shell to be transported out from the position of the first filter, further improving the heat dissipation efficiency of the circuit board inside the camera module.

[0016] 2. By sleeving a rubber ring on the outside of the lens module, taking advantage of the good elasticity of the rubber material of the rubber ring, the rubber ring can softly contact the lens module, effectively preventing the support shell from colliding with the lens module due to vehicle vibration, which is beneficial to protecting the lens module. By installing and fixing a battery block inside the support shell, the battery block can supply emergency power to the camera module in time after the vehicle accidentally loses power, ensuring the continuous operation of the camera, and being able to provide safety protection for the vehicle owner at critical moments, ensuring the integrity and reliability of the driving record. Brief Description of the Drawings

[0017] Figure 1 is the schematic diagram of the overall structure of the present utility model Figure 1 ;

[0018] Figure 2 is the schematic diagram of the overall structure of the present utility model Figure 2 ;

[0019] Figure 3 is the schematic diagram of the internal structure of the support shell and the U-shaped plate in the present utility model;

[0020] Figure 4 is the schematic diagram of the split three-dimensional state structure of the circuit board, rectangular frame, and heat conduction plate in the present utility model;

[0021] Figure 5 is the schematic diagram of the split three-dimensional state structure of two U-shaped plates in the present utility model;

[0022] Figure 6 is the schematic diagram of the internal structure of the U-shaped plate in the present utility model.

[0023] In the figure: 100, support shell; 110, air inlet pipe; 111, air hood; 120, rubber ring; 200, U-shaped plate; 210, air guide pipe; 220, first limiting strip; 230, second limiting strip; 240, third limiting strip; 250, support block; 260, partition board; 270, convex block; 280, groove; 300, circuit board; 310, lens module; 311, lens body; 320, wire; 400, rectangular frame; 410, heat conducting plate; 411, heat dissipation fin; 500, rear cover; 510, first filter screen; 520, screw hole; 600, installation component; 610, connecting seat; 620, rotating seat; 630, substrate; 700, battery block. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1, please refer to Figure 1-6 , in the embodiment of the present invention, a starlight night vision camera module includes a support shell 100. Two mutually spliced U-shaped plates 200 are movably inserted at one end of the support shell 100. A circuit board 300 is detachably clamped and fixed between the two U-shaped plates 200. A lens module 310 is fixedly installed on the front side of the circuit board 300. A wire 320 is electrically connected to the rear side of the circuit board 300. A rectangular frame 400 is arranged on the rear side of the circuit board 300. A heat conducting plate 410 fixedly installed on the rear side of the circuit board 300 is fixed inside the rectangular frame 400. Heat dissipation fins 411 are fixed on the outer side of the heat conducting plate 410. An air inlet pipe 110 is fixedly connected and communicated at the bottom of the U-shaped plate 200. An air guide pipe 210 communicated with the air inlet pipe 110 is fixed between the bottoms of the two U-shaped plates 200. A rear cover 500 is detachably fixed by screws at one end of the two U-shaped plates 200 away from the lens module 310. An installation component 600 is fixed on the outer side of the rear cover 500.

[0026] Specifically, by fixedly installing a heat conducting plate 410 on the rear side of the circuit board 300 inside the camera module and fixedly installing heat dissipation fins 411 on the rear side of the heat conducting plate 410, the heat conducting plate 410 can absorb the heat on the circuit board 300 and transfer it to the position of the heat dissipation fins 411. As the vehicle drives with the camera module, the outside air enters the air guide pipe 210 through the air inlet pipe 110, and then blows from the air guide pipe 210 to the position of the heat dissipation fins 411, which is convenient for volatilizing the heat around the heat dissipation fins 411 inside the support shell 100 through the first filter screen 510 on the rear cover 500, which is beneficial to improving the heat dissipation efficiency of the camera module.

[0027] As Figure 2 shown, in this embodiment, one end of the air inlet pipe 110 is fixedly connected to a wind hood 111. A second filter screen is detachably fixed to the end of the air inlet pipe 110 close to the wind hood 111. The outer shape of the wind hood 111 is frustum-shaped, which can, to a certain extent, enable more air to enter the air inlet pipe 110 as the vehicle travels, facilitating the air flow exchange inside the support shell 100. The second filter screen facilitates filtering impurities in the outside air outside the air inlet pipe 110.

[0028] As Figure 1 and Figure 3 shown, in this embodiment, a rubber ring 120 is fixedly embedded at one end of the air inlet pipe 110, and a lens body 311 arranged inside the rubber ring 120 is fixedly installed at one end of the lens module 310. Utilizing the good rubber elasticity of the rubber ring 120, the lens body 311 can be supported and protected on the support shell 100, effectively preventing the vibration and collision of the support shell 100 during vehicle travel from damaging the lens body 311. The specific component composition and imaging working principle of the lens body 311 are prior art and will not be elaborated here.

[0029] As Figure 3 , Figure 5 and Figure 6 shown, in this embodiment, a first limiting strip 220 and a second limiting strip 230 for limiting the positions of the circuit board 300 and the heat dissipation fins 411 are fixed inside the U-shaped plate 200. A convex block 270 is fixed to the top of one U-shaped plate 200, and a groove 280 for the convex block 270 to be movably inserted is formed in the top of the other U-shaped plate 200.

[0030] In this embodiment, when installing the circuit board 300 and the heat dissipation fins 411, select one U-shaped plate 200, and snap and place the circuit board 300 and the rectangular frame 400 equipped with the heat dissipation fins 411 between the first limiting strip 220 and the second limiting strip 230 inside the U-shaped plate 200. Then take out the other U-shaped plate 200 and snap it onto this U-shaped plate 200, so that the convex block 270 on the U-shaped plate 200 is inserted into the groove 280. At this time, the first limiting strip 220 on the other U-shaped plate 200 is also fixedly positioned in front of the circuit board 300, and the second limiting strip 230 on the other U-shaped plate 200 is fixedly positioned behind the heat dissipation fins 411, realizing the detachable fixation of the circuit board 300 and the heat dissipation fins 411 between the two U-shaped plates 200. Among them, the distance between the first limiting strip 220 and the second limiting strip 230 is the same as the distance between the circuit board 300 and the heat dissipation fins 411.

[0031] As Figure 3 and Figure 5As shown, in this embodiment, the air duct 210 is composed of two half pipes spliced together. The air outlet end of the air duct 210 faces the heat dissipation fins 411. A first filter screen 510 is embedded and fixed on the outer side of the rear cover 500. Two screw holes 520 extending into the inside of the support shell 100 are provided at both the top and bottom of the rear cover 500.

[0032] In this embodiment, during the splicing process of the two U-shaped plates 200, the two half pipes can be combined into an air duct 210. The air duct 210 can convey the air in the air inlet pipe 110 into the support shell 100. At the same time, the air duct 210 is set in a curved shape to effectively prevent external rainwater from entering the support shell 100 through the air duct 210. The screw holes 520 facilitate fixing the rear cover 500 to the support shell 100 with screws.

[0033] As Figure 3 shown, in this embodiment, a battery block 700 electrically connected to the circuit board 300 is arranged between the two U-shaped plates 200. Two third limiting strips 240 and support blocks 250 are fixed on the inner side of the U-shaped plate 200. The third limiting strips 240 are arranged in abutment against the outer side of the battery block 700, and the support blocks 250 are arranged in abutment against the bottom surface of the battery block 700.

[0034] In this embodiment, the battery block 700 can supply power to the camera module in a timely manner in the event of an accidental power failure of the vehicle, ensuring the continuous operation of the camera module, providing safety protection for the vehicle owner at critical moments, and ensuring the integrity and reliability of the driving record. The third limiting strips 240 on the two U-shaped plates 200 can clamp and limit the battery block 700 from both sides. The support blocks 250 arranged on the bottom surface of the battery block 700 play a role in supporting the battery block 700. A partition plate 260 fixedly connected to one of the U-shaped plates 200 is arranged below the battery block 700, and the partition plate 260 can guide the air towards the direction of the first filter screen 510.

[0035] Embodiment 2, on the basis of Embodiment 1, in order to enable the starlight night vision camera module to be installed on a vehicle and enable the camera module to adjust its orientation towards different shooting directions.

[0036] As Figure 1 and Figure 2 shown, in this embodiment, the mounting assembly 600 includes two connecting seats 610 both fixedly connected to the rear cover 500. The top of the connecting seat 610 is detachably and rotatably connected to a rotating seat 620 by screws. A substrate 630 is fixed between the tops of the two rotating seats 620.

[0037] In this embodiment, when the camera module is installed on the front side of the vehicle, the two connecting seats 620 are rotated and adjusted on the rotating seat 610 so that the camera module can be tilted downward toward the direction in which recording is required, and then an external screwdriver is used to tighten the screws between the rotating seat 610 and the connecting seat 620, and then the base plate 630 is installed and fixed to the vehicle by bolts, thereby achieving the installation and fixing of the camera module on the vehicle, wherein the air inlet duct 110 is arranged at the bottom of the camera module after installation to facilitate the entry of outside air into the air inlet duct 110.

[0038] In the present invention, the wire 320 on the circuit board 300 runs through the heat conducting plate 410. How the wire 320 supplies power to the circuit board 300 and the various electrical components installed on the circuit board 300 are all prior art, and will not be described in detail. In addition to the low light sensor, ambient light sensor and acceleration sensor mentioned in the background technology, the electrical components installed on the circuit board 300 are generally equipped with an infrared sensor, which can sense infrared radiation in the environment, so that images can still be captured in insufficient light; a temperature sensor is installed, and the temperature sensor is used to monitor the working temperature of the camera module. By detecting the temperature in real time, it can be ensured that the camera module operates within a suitable temperature range.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0040] 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. A starlight night vision camera module, comprising a supporting shell (100), characterized in that: One end of the support shell (100) is movably inserted with two spliced C-shaped plates (200). A circuit board (300) is detachably clamped and fixed between the two C-shaped plates (200). A lens module (310) is fixedly installed on the front side of the circuit board (300). A wire (320) is electrically connected to the rear side of the circuit board (300). A rectangular frame (400) is arranged on the rear side of the circuit board (300). A heat conducting plate (410) fixedly installed with the rear side of the circuit board (300) is fixed inside the rectangular frame (400). Heat dissipation fins (411) are fixed on the outer side of the heat conducting plate (410). An air inlet pipe (110) is fixedly connected and communicated with the bottom of the C-shaped plate (200). An air guide pipe (210) communicated with the air inlet pipe (110) is fixed between the bottoms of the two C-shaped plates (200). One end of the two C-shaped plates (200) away from the lens module (310) is detachably fixed with a rear cover (500) by screws. An installation component (600) is fixed on the outer side of the rear cover (500).

2. A starlight night vision camera module according to claim 1, characterized in that: One end of the air inlet pipe (110) is fixedly connected and communicated with an air hood (111). A second filter screen is detachably fixed at one end of the air inlet pipe (110) close to the air hood (111).

3. A starlight night vision camera module according to claim 1, characterized in that: One end of the air inlet pipe (110) is embedded and fixed with a rubber ring (120). One end of the lens module (310) is fixedly installed with a lens body (311) arranged inside the rubber ring (120).

4. The starlight night vision camera module according to claim 1, characterized in that: Limit strips one (220) and limit strips two (230) for restricting the positions of the circuit board (300) and the heat dissipation fins (411) are fixed on the inner side of the C-shaped plate (200). A convex block (270) is fixed on the top of one C-shaped plate (200). A groove (280) for the convex block (270) to be movably inserted is opened on the top of the other C-shaped plate (200).

5. The starlight night vision camera module according to claim 1, characterized in that: The air guide pipe (210) is composed of two spliced half pipes. The air outlet end of the air guide pipe (210) faces the heat dissipation fins (411). A first filter screen (510) is embedded and fixed on the outer side of the rear cover (500). Two screw holes (520) extending into the support shell (100) are opened at the top and bottom of the rear cover (500).

6. The starlight night vision camera module according to claim 1, characterized in that: A battery block (700) electrically connected to the circuit board (300) is arranged between the two C-shaped plates (200). Two limit strips three (240) and support blocks (250) are fixed on the inner side of the C-shaped plate (200). The limit strips three (240) are arranged close to the outer side of the battery block (700). The support blocks (250) are arranged close to the bottom surface of the battery block (700).

7. The starlight night vision camera module according to claim 1, characterized in that: The installation component (600) includes two connection seats (610) both fixedly connected to the rear cover (500). The top of the connection seat (610) is detachably and rotatably connected with a rotating seat (620) by screws. A substrate (630) is fixed between the tops of the two rotating seats (620).

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