Automotive infrared auxiliary light source of low-light night vision device
By introducing snap-fit and limiting components into the low-light night vision device, the problem of inconvenient disassembly of the infrared searchlight after installation is solved, realizing a convenient installation and disassembly process and improving the convenience of maintenance and replacement.
Patent Information
- Application Number
- CN202520670634.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-09
AI Technical Summary
The infrared searchlights for vehicles in existing low-light night vision devices are not easy to remove after installation, making maintenance and replacement inconvenient.
A structure comprising a rectangular shell, a rectangular block, an infrared searchlight, a snap-fit assembly, and a limiting assembly is designed. By controlling the rotation of the infrared searchlight to drive the rotating column and the protruding rod, the snap-fit block and the slot can be stably engaged and disengaged, simplifying the installation and disassembly process.
It enables convenient installation and removal of infrared searchlights, improving the ease of maintenance and replacement.
Smart Images

Figure CN223939253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary light sources, and in particular to an infrared auxiliary light source for a low-light night vision device for vehicles. Background Technology
[0002] A low-light night vision device is a device that uses weak light at night (such as moonlight, starlight, atmospheric glow, etc.) for observation. It uses photoelectric imaging technology to enhance the weak light signal and convert it into a visible image, thereby enabling night observation. It generally uses an infrared searchlight, which can transmit the beam of light further in foggy weather, improving driving safety.
[0003] Chinese utility model CN216952779U describes a reinforced LED headlight for electric vehicles, which includes a searchlight mounting structure. The principle involves bringing two arc-shaped blocks close together, inserting a locking block into a slot, and simultaneously pushing a vertical rod as they approach each other. This releases the torsion spring at one end of the vertical rod, causing the locking block to rotate and engage with the slot, thus completing the installation of the searchlight.
[0004] However, with existing devices, the rotation of the locking block cannot be directly controlled because the curved block is too close together after installation, making disassembly inconvenient. Therefore, an auxiliary light source that is easier to install and remove was designed to address the aforementioned problems. Utility Model Content
[0005] The purpose of this invention is to provide an infrared auxiliary light source for a low-light night vision device for vehicles, so as to solve the problems mentioned in the background art.
[0006] The technical solution adopted in this utility model is:
[0007] An infrared auxiliary light source for a low-light night vision device includes: a rectangular shell with a rectangular block inside; an infrared searchlight disposed on the top of the rectangular block; a latching assembly disposed inside the rectangular block, the latching assembly including: a slot formed on the outer side wall of the rectangular shell; a column fixedly disposed on the bottom of the infrared searchlight and inserted into the interior of the rectangular block at its bottom end; a rotating column rotatably disposed inside the rectangular block and connected to the bottom end of the column; a protruding rod fixedly disposed on the outer side wall of the rotating column; a connecting rod rotatably disposed on one end of the protruding rod; a latch block with one end penetrating through the inner side wall of the rectangular block and inserted into the slot, and the other end rotatably connected to one end of the connecting rod; an L-shaped plate fixedly disposed on the top of the latch block; and a spring with both ends connected to the L-shaped plate and the inner side wall of the rectangular block.
[0008] In some embodiments, four sets of the slot, the protrusion, the connecting rod, and the locking block are provided.
[0009] In some embodiments, one end of the card block is designed with a bevel.
[0010] In some embodiments, the buckle assembly further includes: one end of a crossbar passing through the L-shaped plate and through the spring to connect with the inner sidewall of the rectangular block.
[0011] In some embodiments, the column is provided with a limiting component, the limiting component including: a threaded rod with its bottom end inserted into the interior of the column and threadedly connected to the column; a horizontal plate being penetrated by the threaded rod and rotatably connected to the threaded rod; and a plug rod disposed at the bottom of both ends of the horizontal plate, with the bottom end of the plug rod penetrating the infrared searchlight and inserted into the interior of the rectangular block.
[0012] In some embodiments, two sets of the insertion rods are symmetrically arranged.
[0013] In some embodiments, the limiting component further includes a torque disposed at the top of the threaded rod.
[0014] In some embodiments, the limiting component further includes a baffle disposed at the bottom end of the threaded rod.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This infrared auxiliary light source, with its snap-fit assembly, controls the rotation of the infrared searchlight, which in turn rotates the rotating column, causing the protruding rod and connecting rod to rotate. This, in turn, controls the retraction of the locking block, allowing it to engage with the slot and stabilize the rectangular block, thus completing the installation. Compared to existing devices, disassembly and maintenance are much more convenient. 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 description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure in this application;
[0019] Figure 2 This is a schematic diagram of the structure in this application where the rectangular shell and rectangular block are separated;
[0020] Figure 3 This is a schematic diagram of the snap-fit assembly in this application;
[0021] Figure 4 This is a schematic diagram of the structure of the limiting component in this application.
[0022] Reference numerals: 11. Rectangular shell; 12. Rectangular block; 13. Infrared searchlight;
[0023] 2. Buckle assembly; 21. Buckle slot; 22. Upright column; 23. Rotating column; 24. Protruding rod; 25. Connecting rod; 26. Buckle block; 27. L-shaped plate; 28. Spring; 29. Crossbar;
[0024] 3. Limiting component; 31. Threaded rod; 32. Cross plate; 33. Insert rod; 34. Rotary knob; 35. Baffle. Detailed Implementation
[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0027] The current technology involves bringing two curved blocks close together, inserting a locking block into a slot, and simultaneously pushing the upright post as they approach. This releases the torsion spring at one end of the post, causing the locking block to rotate and engage with the slot, thus securing the searchlight. However, because the curved blocks are close together after installation, the locking block cannot be directly controlled to rotate, making disassembly inconvenient.
[0028] As shown in the attached figure, this utility model embodiment provides an infrared auxiliary light source for a vehicle-mounted low-light night vision device, comprising: a rectangular shell 11 with a rectangular block 12 disposed inside; an infrared searchlight 13 disposed on the top of the rectangular block 12; a latching assembly 2 disposed inside the rectangular block 12, the latching assembly 2 comprising: a slot 21 formed on the outer side wall of the rectangular shell 11; a column 22 fixedly disposed at the bottom of the infrared searchlight 13, with its bottom end inserted into the interior of the rectangular block 12; and a rotating column 23 rotatably disposed... The spring 28 is placed inside the rectangular block 12 and connected to the bottom end of the column 22; the protruding rod 24 is fixedly set on the outer side wall of the rotating column 23; the connecting rod 25 is rotatably set on one end of the protruding rod 24; one end of the locking block 26 passes through the inner side wall of the rectangular block 12 and is inserted into the inside of the locking slot 21, and the other end is rotatably connected to one end of the connecting rod 25; the L-shaped plate 27 is fixedly set on the top of the locking block 26; both ends of the spring 28 are connected to the L-shaped plate 27 and the inner side wall of the rectangular block 12.
[0029] Specifically, the infrared searchlight 13 operates primarily based on infrared light-emitting diode (LED) technology. The infrared searchlight consists of an array of infrared LEDs, which are formed into PN junctions using materials with high infrared radiation efficiency. Infrared light is excited by injecting current into the PN junctions through an applied forward bias voltage. Its spectral power distribution has a center wavelength between 830 and 950 nanometers and a half-peak bandwidth of approximately 40 nanometers, which is a narrowband distribution suitable for the sensing range of ordinary CCD monochrome cameras.
[0030] Advantages of using the infrared searchlight 13
[0031] Enhanced nighttime visibility: The infrared searchlight 13 can penetrate fog, smoke and dust and other adverse environments, providing a longer illumination distance, so that drivers can clearly see the road conditions ahead at night or in bad weather.
[0032] Reduce visual fatigue: Compared with traditional car lights, the infrared searchlight 13 emits softer, less glaring light, which can reduce driver visual fatigue and improve driving comfort.
[0033] Enhanced safety: The infrared searchlight 13 can more clearly display road edges and obstacles, helping drivers to react in time and reducing the risk of traffic accidents.
[0034] Application of Infrared Searchlight 13 in Actual Driving
[0035] In actual driving, the infrared searchlight 13 can be used in conjunction with other vehicle systems, such as night vision systems and collision warning systems, to jointly improve driving safety. Furthermore, in special situations, such as mines and tunnels where light is insufficient, the infrared searchlight 13 can also play an important role in helping drivers accurately assess road conditions and avoid potential safety hazards.
[0036] In conclusion, the infrared searchlight 13, as an advanced nighttime driving assistance device, provides drivers with a safer and more comfortable driving experience through its unique working principle and advantages. In the future development of automotive technology, we have reason to believe that the infrared searchlight 13 will play an even more important role, safeguarding people's travel.
[0037] When installing the infrared searchlight 13, first, fix the rectangular shell 11 to the vehicle body using the mounting blocks on both sides. Then, insert the rectangular block 12 into the rectangular shell 11. Next, control the rotation of the infrared searchlight 13 to drive the column 22 and rotating column 23 to rotate as well. Control the convex rod 24 to drive the connecting rod 25 to rotate, which can pull the locking block 26 back into the rectangular block 12. At the same time, it drives the L-shaped plate 27 to pull the spring 28 to stretch. Then, continue to push the rectangular block 12 into the rectangular shell 11. Finally, release the infrared searchlight 13. The spring 28 retracts, causing the L-shaped plate 27 to move, pushing the locking block 26 out from the rectangular block 12 and into the slot 21 to fix the rectangular block 12 in place. When disassembly is required, simply repeat the above actions and rotate the infrared searchlight 13 to retract the locking block 26, pushing the rectangular block 12 and the rectangular shell 11 apart. One end of the infrared searchlight 13 is equipped with a connecting wire, which is connected to the power supply inside the vehicle body for use.
[0038] In some embodiments, four sets of the slot 21, the protrusion 24, the connecting rod 25, and the locking block 26 are provided.
[0039] After the snap-fit mechanism is secured, the four-piece design provides four connection points, resulting in a more secure fixation.
[0040] In some embodiments, one end of the card block 26 is designed with a bevel.
[0041] The beveled design eliminates the need for manual control of the infrared searchlight 13 when the rectangular block 12 is inserted into the rectangular shell 11. The beveled surface, when compressed, causes the locking block 26 to retract into the rectangular block 12, making installation more convenient.
[0042] In some embodiments, the buckle assembly 2 further includes: one end of a crossbar 29 passing through the L-shaped plate 27 and through the spring 28 to connect with the inner sidewall of the rectangular block 12.
[0043] The design of the crossbar 29 can stabilize the position of the locking block 26 when the locking block 26 moves, and at the same time, it can prevent the spring 28 from bending when the spring 28 extends and retracts, thus protecting the spring 28.
[0044] In some embodiments, a limiting component 3 is provided inside the column 22. The limiting component 3 includes: a threaded rod 31 with its bottom end inserted into the interior of the column 22 and threadedly connected to the column 22; a horizontal plate 32 through which the threaded rod 31 passes and rotatably connected to the threaded rod 31; and an insertion rod 33 disposed at the bottom of both ends of the horizontal plate 32, with the bottom end of the insertion rod 33 passing through the infrared searchlight 13 and inserted into the interior of the rectangular block 12.
[0045] After installation, to ensure the stability of the infrared searchlight 13, the threaded rod 31 can be rotated to connect with the column 22 and be inserted into the column 22 to drive the horizontal plate 32 to move downwards, pushing the insertion rod 33 into the rectangular block 12 to restrict the rotation of the infrared searchlight 13 and make its installation more secure.
[0046] In some embodiments, two sets of the insertion rods 33 are symmetrically arranged.
[0047] The dual-set design improves the limiting effect and maintains the stability of the infrared searchlight 13.
[0048] In some embodiments, the limiting component 3 further includes a torque 34 disposed at the top of the threaded rod 31.
[0049] The design of the knob 34 makes it more convenient to control the rotation of the threaded rod 31.
[0050] In some embodiments, the limiting component 3 further includes a baffle 35 disposed at the bottom end of the threaded rod 31.
[0051] The design of the baffle 35 can prevent the threaded rod 31 from detaching from the column 22 while it is being raised and lowered.
[0052] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A vehicle-mounted infrared auxiliary light source for a low-light night vision device, comprising: A rectangular shell (11) with a rectangular block (12) inside; An infrared searchlight (13) is disposed on the top of the rectangular block (12); The feature is that a snap-fit assembly (2) is provided inside the rectangular block (12), and the snap-fit assembly (2) includes: A slot (21) is provided on the outer side wall of the rectangular shell (11); The column (22) is fixedly installed at the bottom of the infrared searchlight (13) and its bottom end is inserted into the interior of the rectangular block (12); The rotating column (23) is rotatably disposed inside the rectangular block (12) and connected to the bottom end of the column (22); A protruding rod (24) is fixedly installed on the outer side wall of the rotating column (23); A connecting rod (25) is rotatably mounted at one end of the protruding rod (24); The card block (26) has one end penetrating through the inner wall of the rectangular block (12), inserted into the inside of the card slot (21), and the other end is rotatably connected to one end of the connecting rod (25); An L-shaped plate (27) is fixedly disposed on the top of the card block (26); The spring (28) is connected at both ends to the inner sidewalls of the L-shaped plate (27) and the rectangular block (12).
2. The vehicle-mounted infrared auxiliary light source for a low-light night vision device according to claim 1, characterized in that, The slot (21), the protruding rod (24), the connecting rod (25), and the locking block (26) are each provided with four sets.
3. The vehicle-mounted infrared auxiliary light source for a low-light night vision device according to claim 1, characterized in that, One end of the card block (26) is designed with a bevel.
4. The vehicle-mounted infrared auxiliary light source for a low-light night vision device according to claim 1, characterized in that, The snap-fit assembly (2) also includes: A crossbar (29) passes through the L-shaped plate (27) at one end and is connected to the inner wall of the rectangular block (12) through the spring (28).
5. The vehicle-mounted infrared auxiliary light source for a low-light night vision device according to claim 1, characterized in that, The column (22) is internally provided with a limiting component (3), the limiting component (3) including: The threaded rod (31) is inserted into the interior of the column (22) at its bottom end and is threadedly connected to the column (22); A horizontal plate (32) is penetrated by the threaded rod (31) and rotatably connected to the threaded rod (31); a plug (33) is set at the bottom of both ends of the horizontal plate (32), and the bottom end of the plug (33) penetrates the infrared searchlight (13) and is inserted into the interior of the rectangular block (12).
6. The vehicle-mounted infrared auxiliary light source for a low-light night vision device according to claim 5, characterized in that, The insertion rod (33) is symmetrically arranged in two sets.
7. The vehicle-mounted infrared auxiliary light source for a low-light night vision device according to claim 5, characterized in that, The limiting component (3) also includes: A knob (34) is located at the top of the threaded rod (31).
8. The vehicle-mounted infrared auxiliary light source for a low-light night vision device according to claim 5, characterized in that, The limiting component (3) also includes: A baffle (35) is provided at the bottom end of the threaded rod (31).
Citation Information
Patent Citations
Reinforced LED vehicle lamp for electric vehicle
CN216952779U