Vehicle-mounted backlight source with adjustable brightness

Abstract

The utility model relates to the technical field of lighting devices, and discloses a brightness-adjustable vehicle-mounted backlight source which comprises a protective shell, the lower side of the protective shell is fixedly connected with a suction cup base, the protective shell can be installed in a vehicle through the suction cup base, and the upper side of the protective shell is provided with an installation groove. The interior of the mounting groove is fixedly connected with an LED backlight plate, the interior of the mounting groove is fixedly connected with a first light shielding plate, the first light shielding plate is arranged on the upper side of the LED backlight plate, a plurality of light transmitting grooves are formed in the upper side of the first light shielding plate, and a brightness adjusting mechanism is arranged on the protective shell. A driver can adjust the brightness of the LED backlight plate according to the surrounding environment through the brightness adjusting mechanism, in this way, the driver can adjust the brightness of the vehicle-mounted backlight source according to the brightness of the surrounding environment, the vehicle-mounted backlight source is made to be in the proper brightness, and then the comfort level and safety of the driver during driving are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting devices, in particular to a vehicle-mounted backlight source with adjustable brightness. Background Art

[0002] The vehicle-mounted backlight is an important automotive component, and its performance directly affects the visual effect of the liquid crystal display module. The backlight includes parts such as the backlight panel and suction cup, which allow the backlight panel to have a higher degree of freedom in the car. The height, direction and distance between the backlight panel and the driver can be adjusted, making the vehicle-mounted backlight more convenient to use.

[0003] The brightness of current vehicle-mounted backlight sources is mostly constant, and thus these vehicle-mounted backlight sources cannot adjust the brightness according to the brightness of the surrounding environment, making the vehicle-mounted backlight sources unable to adapt to different driving environments, thereby reducing the driver's comfort and safety. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a vehicle-mounted backlight with adjustable brightness, which allows the driver to adjust the brightness of the vehicle-mounted backlight according to the brightness of the surrounding environment, so that the vehicle-mounted backlight is at an appropriate brightness, thereby improving the driver's comfort and safety while driving.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a brightness-adjustable vehicle-mounted backlight, comprising a protective housing, a suction cup base fixedly connected to the lower side of the protective housing, and the protective housing can be installed in the vehicle through the suction cup base;

[0008] The upper side of the protective shell is provided with a mounting groove, the interior of which is fixedly connected to the LED backlight panel, and the interior of which is fixedly connected to the first light shielding plate;

[0009] The first light shielding plate is arranged on the upper side of the LED backlight plate, and a plurality of light-transmitting grooves are opened on the upper side of the first light shielding plate;

[0010] The protective housing is provided with a brightness adjustment mechanism, through which the driver can adjust the brightness of the LED backlight panel according to the surrounding environment;

[0011] The brightness adjustment mechanism includes a second light shielding plate, a limiting baffle, a rotating handle, a rotating rod, a rotating threaded rod, a limiting groove and a limiting ring.

[0012] Preferably, the second light shielding plate is slidably connected to the inside of the installation groove, and the second light shielding plate is arranged on the upper side of the first light shielding plate. The upper side of the second light shielding plate is also provided with a plurality of light-transmitting grooves.

[0013] Preferably, the limit baffle is fixedly connected to the inside of the installation slot, and the shape of the limit baffle is a square;

[0014] The limiting baffle is arranged on the upper side of the second light shielding plate, and the rotating handle is arranged on the front side of the protective shell.

[0015] Preferably, a rotating rod is fixedly connected to the rear side of the rotating handle, and the rear end of the rotating rod rotates to penetrate into the interior of the protective shell, and the rear end of the rotating rod rotates to extend into the interior of the mounting slot.

[0016] Preferably, the rotating threaded rod is fixedly connected to the rear end of the rotating rod, the rear end thread of the rotating threaded rod extends into the interior of the second light shielding plate, and the limiting groove is opened inside the protective shell.

[0017] Preferably, the limiting groove is arranged at the position of the rotating rod, the limiting ring is fixedly sleeved on the outer surface of the rotating rod, and the limiting ring is arranged inside the limiting groove.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention provides a vehicle-mounted backlight source with adjustable brightness, which has the following beneficial effects:

[0020] (1) The brightness-adjustable vehicle backlight source is characterized in that the handle is rotated, and the handle drives the rotating rod to rotate synchronously. After the rotation of the rotating rod, the brightness of the vehicle backlight source begins to decrease, and the brightness of the vehicle backlight source can be adjusted. As can be seen from the above, rotating the handle in the opposite direction can increase the brightness of the vehicle backlight source. In this way, the driver can adjust the brightness of the vehicle backlight source according to the brightness of the surrounding environment, so that the vehicle backlight source is at an appropriate brightness, thereby improving the driver's comfort and safety when driving.

[0021] (2) When the rotating rod of the vehicle-mounted backlight source with adjustable brightness rotates, the limiting ring will be driven to rotate synchronously, and then the limiting ring will be limited to rotate inside the limiting groove, so that the stability of the brightness adjustment mechanism during adjustment is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a vehicle-mounted backlight source with adjustable brightness according to the present invention;

[0023] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the protective shell of the utility model;

[0024] Figure 3 for Figure 2 A magnified schematic diagram of .

[0025] In the figure: 1. Protective shell; 2. Suction cup base; 3. Mounting slot; 4. LED backlight panel; 5. First light shielding plate; 6. Second light shielding plate; 7. Light transmission slot; 8. Limit baffle; 9. Rotating handle; 10. Rotating rod; 11. Rotating threaded rod; 12. Limiting slot; 13. Limiting ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1 to 3 The utility model provides a new technical solution: a vehicle-mounted backlight source with adjustable brightness, comprising a protective shell 1, a suction cup base 2 fixedly connected to the lower side of the protective shell 1, the protective shell 1 can be installed in the car through the suction cup base 2, the upper side of the protective shell 1 is provided with a mounting groove 3, the interior of the mounting groove 3 is fixedly connected with an LED backlight panel 4, the LED backlight panel 4 is an existing structure, so no further explanation is given, the interior of the mounting groove 3 is fixedly connected with a first light shielding plate 5, the first light shielding plate 5 is arranged on the upper side of the LED backlight panel 4, the upper side of the first light shielding plate 5 is provided with a plurality of light-transmitting grooves 7, a brightness adjustment mechanism is provided on the protective shell 1, and the driver can adjust the brightness of the LED backlight panel 4 according to the surrounding environment through the brightness adjustment mechanism, the brightness adjustment mechanism comprises a second light shielding plate 6, a limit baffle 8, a rotating handle 9, a rotating rod 10, a rotating threaded rod 11, a limit groove 12 and a limit ring 13.

[0028] Furthermore, the second light shielding plate 6 is slidably connected to the inside of the mounting groove 3, the second light shielding plate 6 is arranged on the upper side of the first light shielding plate 5, and the upper side of the second light shielding plate 6 is also provided with a plurality of light-transmitting grooves 7, the limit baffle 8 is fixedly connected to the inside of the mounting groove 3, the limit baffle 8 is in the shape of a mouth, the limit baffle 8 is arranged on the upper side of the second light shielding plate 6, the rotating handle 9 is arranged on the front side of the protective shell 1, and the rear side of the rotating handle 9 is fixedly connected to the rotating rod 10, the rear end of the rotating rod 10 rotates and penetrates into the interior of the protective shell 1, and the rear end of the rotating rod 10 rotates and extends into the interior of the mounting groove 3, the rotating threaded rod 11 is fixedly connected to the rear end of the rotating rod 10, and the rear end of the rotating threaded rod 11 is threadedly extended into the interior of the second light shielding plate 6, the limiting groove 12 is opened in the interior of the protective shell 1, the limiting groove 12 is arranged at the position of the rotating rod 10, the limiting ring 13 is fixedly sleeved on the outer surface of the rotating rod 10, and the limiting ring 13 is arranged inside the limiting groove 12.

[0029] Furthermore, when in use, the protective shell 1 can be quickly placed in the car through the suction cup base 2. Later, when the brightness of the surrounding environment changes, the driver can adjust the brightness of the vehicle backlight source. The driver rotates the rotating handle 9, and then the rotating handle 9 drives the rotating rod 10 to rotate synchronously, and the rotating rod 10 drives the rotating threaded rod 11 to rotate synchronously, and the rotating threaded rod 11 drives the threaded second sunshade 6 to slide to the rear side, and then the light-transmitting groove 7 on the second sunshade 6 and the light-transmitting groove 7 on the first sunshade 5 begin to be misaligned, and the light source emitted through the light-transmitting groove 7 on the first sunshade 5 The luminance of the vehicle backlight starts to decrease, and the brightness of the vehicle backlight starts to decrease, and the brightness adjustment of the vehicle backlight can be completed. According to the above, rotating the handle 9 in the opposite direction can increase the brightness of the vehicle backlight. At the same time, when the rotating rod 10 rotates, the limiting ring 13 is driven to rotate synchronously, and the limiting ring 13 is limited to rotate inside the limiting groove 12, so that the stability of the brightness adjustment mechanism during adjustment is improved. In this way, the driver can adjust the brightness of the vehicle backlight according to the brightness of the surrounding environment, so that the vehicle backlight is at an appropriate brightness, thereby improving the driver's comfort and safety when driving.

[0030] Working principle: When in use, the protective shell 1 can be quickly placed in the car through the suction cup base 2. Then, when the brightness of the surrounding environment changes, the driver can adjust the brightness of the vehicle backlight. The driver rotates the rotating handle 9, and then the rotating handle 9 drives the rotating rod 10 to rotate synchronously. The rotating rod 10 drives the rotating threaded rod 11 to rotate synchronously. The rotating threaded rod 11 drives the threaded second sunshade 6 to slide backward, and then the light-transmitting groove 7 on the second sunshade 6 and the light-transmitting groove 7 on the first sunshade 5 begin to be misaligned, and then the light source irradiated through the light-transmitting groove 7 on the first sunshade 5 begins to decrease, and then the brightness of the vehicle backlight begins to decrease, and then the brightness of the vehicle backlight can be adjusted. According to the above, rotating the rotating handle 9 in the opposite direction can increase the brightness of the vehicle backlight. At the same time, when the rotating rod 10 rotates, it will drive the limiting ring 13 to rotate synchronously, and then the limiting ring 13 will be limited in the limiting groove 12 and rotate, so that the stability of the brightness adjustment mechanism during adjustment is improved.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted backlight source with adjustable brightness, comprising a protective housing (1), wherein a suction cup base (2) is fixedly connected to the lower side of the protective housing (1), and the protective housing (1) can be installed in a vehicle via the suction cup base (2); The upper side of the protective shell (1) is provided with a mounting groove (3), and the interior of the mounting groove (3) is fixedly connected with an LED backlight panel (4), which is characterized in that: A first light shielding plate (5) is fixedly connected to the interior of the installation groove (3); The first light shielding plate (5) is arranged on the upper side of the LED backlight plate (4), and a plurality of light-transmitting grooves (7) are provided on the upper side of the first light shielding plate (5); The protective housing (1) is provided with a brightness adjustment mechanism, and the driver can adjust the brightness of the LED backlight panel (4) according to the surrounding environment through the brightness adjustment mechanism; The brightness adjustment mechanism comprises a second light shielding plate (6), a limiting baffle (8), a rotating handle (9), a rotating rod (10), a rotating threaded rod (11), a limiting groove (12) and a limiting ring (13).

2. The brightness-adjustable vehicle backlight according to claim 1, characterized in that: The second light shielding plate (6) is slidably connected to the inside of the installation groove (3). The second light shielding plate (6) is arranged on the upper side of the first light shielding plate (5). The upper side of the second light shielding plate (6) is also provided with a plurality of light-transmitting grooves (7).

3. The brightness-adjustable vehicle backlight according to claim 1, characterized in that: The limit baffle (8) is fixedly connected to the inside of the installation groove (3), and the limit baffle (8) is in the shape of a square. The limiting baffle (8) is arranged on the upper side of the second light shielding plate (6), and the rotating handle (9) is arranged on the front side of the protective shell (1).

4. The brightness-adjustable vehicle backlight according to claim 3, characterized in that: The rear side of the rotating handle (9) is fixedly connected to a rotating rod (10), the rear end of the rotating rod (10) rotates and penetrates into the interior of the protective shell (1), and the rear end of the rotating rod (10) rotates and extends into the interior of the installation groove (3).

5. The brightness-adjustable vehicle backlight according to claim 1, characterized in that: The rotating threaded rod (11) is fixedly connected to the rear end of the rotating rod (10), the rear end thread of the rotating threaded rod (11) extends into the interior of the second light shielding plate (6), and the limiting groove (12) is opened inside the protective shell (1).

6. The brightness-adjustable vehicle backlight according to claim 5, characterized in that: The limiting groove (12) is arranged at the position of the rotating rod (10), the limiting ring (13) is fixedly sleeved on the outer surface of the rotating rod (10), and the limiting ring (13) is arranged inside the limiting groove (12).

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