Ambient light sensor with light protection

Abstract

The utility model discloses an ambient light sensor with light protection, which relates to the field of ambient light sensors and comprises a top cover and a bottom shell, an ambient light sensing module is arranged in the bottom shell, the bottom shell and the top cover are connected in an up-and-down clamping manner, a light-transmitting groove for sensing light is formed in the top end of the top cover, and the ambient light sensing module is arranged in the light-transmitting groove. Glass plates are arranged in the light-transmitting grooves, sliding grooves are formed in the two sides of the interior of the top cover in the long edge direction, identical optical filters are arranged in through grooves of a first movable plate and a second movable plate, and when one optical filter is damaged, the corresponding optical filter can be directly driven to slide to the position below the corresponding light-transmitting groove by sliding a sliding block, so that the light-transmitting effect is achieved. Therefore, the replacement efficiency is improved, and the problem that the top cover and the bottom shell can be replaced only by disassembling the top cover and the bottom shell by personnel is avoided.

Description

Technical Field

[0001] The utility model relates to the field of ambient light sensors, in particular to an ambient light sensor with light protection. Background Art

[0002] Ambient light sensors are mainly composed of photosensitive components. Photosensitive components are developing rapidly, with a wide variety of applications. Photoresistors, photodiodes, phototransistors, silicon photocells, etc. are available on the market. Ambient light sensors can sense the surrounding light conditions and inform the processing chip to automatically adjust the display backlight brightness to reduce the power consumption of the product. Ambient light sensors can also be used in various applications, including adjusting the brightness of the display, adjusting camera settings, etc. They can also be used in environmental monitoring equipment. Generally, filters are used to block the stray light in the environment to avoid affecting the ambient light sensor.

[0003] If the filter is used for a long time or is damaged by strong light, it needs to be replaced by personnel. Replacement also requires disassembly of the outer shell, which is inconvenient to use.

[0004] Therefore, it is necessary to propose an ambient light sensor with light protection to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an ambient light sensor with light protection to solve the problem that if the filter is used for a long time or is damaged by strong light, it needs to be replaced by personnel, and the replacement also requires disassembly of the shell, which is inconvenient to use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ambient light sensor with light protection, comprising a top cover and a bottom shell, an ambient light sensing module is arranged inside the bottom shell, the bottom shell and the top cover are connected by upper and lower snap-fitting, a light-transmitting groove for sensing light is provided at the top of the top cover, a glass plate is arranged in the light-transmitting groove, sliding grooves are provided on both sides of the long side direction of the top cover, a first movable plate and a second movable plate are slidably matched between the two sliding grooves, a through groove is provided at the top of the first movable plate and the second movable plate, filters are arranged in the through grooves, and one of the filters corresponds to the light-transmitting groove.

[0007] Preferably, the first movable plate and the second movable plate are fixedly connected on opposite sides, a sliding slot is opened on one side of the outer long side of the top cover, the first magnet and the second magnet are respectively provided at both ends of the sliding slot, a sliding block is slidably matched inside the sliding slot, one end of the sliding block is connected to one side of the first movable plate, and the first magnet and the second magnet are both fixed on the outer side of the top cover.

[0008] Preferably, the two ends of the sliding block are magnetically attracted to the first magnet and the second magnet respectively, the top of the sliding block is fixedly connected to an L-shaped sweeping plate, the bottom end of the L-shaped sweeping plate is fixed with a brush, the brush is attached to the top of the glass plate, and the L-shaped sweeping plate is distributed along the length direction of the light-transmitting groove.

[0009] Preferably, a plurality of vertically corresponding fixing plates are fixed to the outer sides of the top cover and the bottom shell, and fixing holes are provided on each of the vertically corresponding fixing plates.

[0010] Preferably, a connection port is fixed on one side of the bottom shell, the connection port is communicated with the interior of the bottom shell, and the connection port is used to connect an external wire to the ambient light sensor module.

[0011] Preferably, a photosensitive element is provided on the ambient light sensor module, and the photosensitive element faces the light-transmitting groove.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The same filters are arranged in the through slots of the first movable plate and the second movable plate. When one of the filters is damaged, the corresponding filter can be directly driven to slide to the bottom of the corresponding light-transmitting slot by sliding the sliding block to complete the replacement, thereby improving the replacement efficiency and avoiding the problem that personnel need to disassemble the top cover and the bottom shell for replacement.

[0014] 2. When the sliding block moves toward the first magnet or the second magnet, it can drive the filters on the first movable plate and the second movable plate toward the light-transmitting slot respectively. When the sliding block contacts the first magnet or the second magnet, one of the light-transmitting slots of the filter can be aligned. At the same time, the position of the sliding block can also be fixed to avoid sliding.

[0015] 3. When the sliding block moves, it drives the brush at the bottom of the L-shaped sweeping plate to clean the upper surface of the glass plate to prevent dust from affecting the light transmission effect and reduce the time for manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the ambient light sensor with light protection of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the optical filter and the sliding slot of the utility model.

[0018] In the figure: 1. top cover; 2. fixed plate; 3. bottom shell; 4. light-transmitting groove; 5. sliding slit; 6. first magnet; 7. sliding block; 8. L-shaped scanning plate; 9. first movable plate; 10. filter; 11. sliding groove; 12. second movable plate; 13. connecting port; 14. second magnet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides Figure 1 - Figure 2 An ambient light sensor with light protection shown in the figure includes a top cover 1 and a bottom shell 3, an ambient light sensing module is arranged inside the bottom shell 3, a photosensitive element is arranged on the ambient light sensing module, the bottom shell 3 and the top cover 1 are connected by upper and lower snap-fitting, a light-transmitting groove 4 for sensing light is opened on the top of the top cover 1, a glass plate is arranged in the light-transmitting groove 4, the photosensitive element faces the light-transmitting groove 4, and the arrangement of the glass plate allows light to enter while blocking dust in the air from entering the interior of the top cover 1.

[0021] Photosensitive elements are generally photodiodes or photoresistors. When light shines on the elements, they absorb light energy and cause changes in resistance value or electron displacement. By interconnecting the photosensitive elements with a circuit, a current or voltage output can be generated, thereby converting the intensity of ambient light into an electrical signal.

[0022] A plurality of vertically corresponding fixing plates 2 are fixed to the outer sides of the top cover 1 and the bottom shell 3 , and fixing holes are provided on each of the vertically corresponding fixing plates 2 .

[0023] In the actual operation of the present invention, the ambient light sensor module can be installed inside the bottom shell 3, and then the top cover 1 and the bottom shell 3 are vertically docked, so that the fixing plates 2 on the outside of the top cover 1 and the bottom shell 3 correspond to each other, and they are fastened with fixing bolts to complete the installation of the ambient light sensor module.

[0024] Sliding grooves 11 are provided on both sides of the long side direction inside the top cover 1, and the first movable plate 9 and the second movable plate 12 are slidably matched between the two sliding grooves 11. Through grooves are provided on the top ends of the first movable plate 9 and the second movable plate 12, and filters 10 are arranged in the through grooves, and one of the filters 10 corresponds to the light-transmitting groove 4.

[0025] The first moving plate 9 and the second moving plate 12 are fixedly connected opposite one side, and a sliding slit 5 is provided on one side of the long outer side of the top cover 1 . The first magnet 6 and the second magnet 14 are respectively provided at both ends of the sliding slit 5 . The sliding block 7 is slidingly matched with the sliding block 7 , and one end of the sliding block 7 is connected to one side of the first moving plate 9 . Both ends of the sliding block 7 are magnetically attracted to the first magnet 6 and the second magnet 14 respectively. The top end of the sliding block 7 is fixedly connected with an L-shaped sweeping plate 8 . The bottom end of the L-shaped sweeping plate 8 is fixed with a brush, and the brush is attached to the top of the glass plate, and the L-shaped sweeping plate 8 is distributed along the length direction of the light transmittance groove 4 . The slider 7 may use a material that is magnetically attracted to the first magnet 6 and the second magnet 14, such as a magnet or an iron-containing material.

[0026] The same filter 10 is arranged in the through groove of the first movable plate 9 and the second movable plate 12. When one of the filters 10 is damaged, the corresponding filter 10 can be directly driven to slide to the bottom of the corresponding light-transmitting groove 4 by sliding the sliding block 7 to complete the replacement, thereby improving the replacement efficiency and avoiding the problem that personnel need to disassemble the top cover 1 and the bottom shell 3 for replacement.

[0027] In another embodiment, the through slots in the first movable plate 9 and the second movable plate 12 may be provided with a monochromatic light filter 10 and a polychromatic light filter 10, respectively, for filtering light of different colors to meet different actual detection needs.

[0028] Furthermore, when the sliding block 7 moves toward the first magnet 6 or the second magnet 14, it can respectively drive the filter 10 on the first movable plate 9 and the second movable plate 12 toward the light-transmitting groove 4. When the sliding block 7 contacts the first magnet 6 or the second magnet 14, one of the filters 10 can correspond to the light-transmitting groove 4. At the same time, the position of the sliding block 7 can also be fixed to avoid sliding.

[0029] When the sliding block 7 moves, the sliding block 7 drives the brush at the bottom end of the L-shaped sweeping plate 8 to clean the upper surface of the glass plate, thereby preventing dust from affecting the light transmission effect and reducing the time for manual cleaning.

[0030] A connection port 13 is fixed on one side of the bottom shell 3 . The connection port 13 is connected to the inside of the bottom shell 3 . The connection port 13 is used to connect an external wire to the ambient light sensor module.

Claims

1. An ambient light sensor with light protection, comprising a top cover (1) and a bottom shell (3), Features: An ambient light sensor module is arranged inside the bottom shell (3); the bottom shell (3) and the top cover (1) are connected by snapping together in an upper and lower manner; a light-transmitting groove (4) for sensing light is provided at the top of the top cover (1); a glass plate is arranged in the light-transmitting groove (4); sliding grooves (11) are provided on both sides of the long side direction inside the top cover (1); a first movable plate (9) and a second movable plate (12) are slidably matched between the two sliding grooves (11); a through groove is provided at the top of the first movable plate (9) and the second movable plate (12); filters (10) are arranged in the through grooves; one of the filters (10) corresponds to the light-transmitting groove (4).

2. An ambient light sensor with light protection according to claim 1, Features: The first movable plate (9) and the second movable plate (12) are fixedly connected at opposite sides; a sliding slit (5) is provided on one side of the outer long side of the top cover (1); a first magnet (6) and a second magnet (14) are provided at both ends of the sliding slit (5); a sliding block (7) is slidably matched inside the sliding slit (5); one end of the sliding block (7) is connected to one side of the first movable plate (9); and the first magnet (6) and the second magnet (14) are both fixed on the outer side of the top cover (1).

3. An ambient light sensor with light protection according to claim 2, Features: The two ends of the sliding block (7) are magnetically attracted to the first magnet (6) and the second magnet (14) respectively; the top end of the sliding block (7) is fixedly connected to an L-shaped sweeping plate (8); the bottom end of the L-shaped sweeping plate (8) is fixed with a brush, the brush is attached to the top end of the glass plate; and the L-shaped sweeping plate (8) is distributed along the length direction of the light-transmitting groove (4).

4. An ambient light sensor with light protection according to claim 3, Features: A plurality of vertically corresponding fixing plates (2) are fixed to the outer sides of the top cover (1) and the bottom shell (3), and fixing holes are provided on each of the vertically corresponding fixing plates (2).

5. The ambient light sensor with light protection according to claim 1, Features: A connection port (13) is fixed on one side of the bottom shell (3), the connection port (13) is communicated with the interior of the bottom shell (3), and the connection port (13) is used for connecting an external wire to an ambient light sensor module.

6. The ambient light sensor with light protection according to claim 1, Features: The ambient light sensor module is provided with a photosensitive element, which faces the light-transmitting groove (4).

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