CN218998335U

CN218998335U - Driving power supply capable of adaptively adjusting light

Info

Publication number: CN218998335U
Application number: CN202223454823.0U
Authority: CN
Inventors: 卢云飞; 李恭盛; 杜亚涛
Original assignee: Zhongshan Gaomu Electronic Technology Co ltd
Current assignee: Zhongshan Gaomu Electronic Technology Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-05-09
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses a driving power supply for self-adaptive dimming, which comprises: the device comprises a driving box, a PCB control board and a photosensitive seat, wherein a sealing bottom cover is fixedly arranged on one side of the driving box, the photosensitive seat is fixedly arranged on the surface of the PCB control board, the PCB control board and the photosensitive seat are positioned on the inner side of the driving box, fasteners matched with the surface of the PCB control board are arranged on the surface of the driving box, a plurality of photosensitive elements are arranged on the surface of the photosensitive seat, a light receiving guide post is sleeved on the surface of the photosensitive element, and a light receiving hole communicated with the top surface of the light receiving guide post is formed in the surface of the driving box. According to the utility model, by arranging the novel photosensitive structure, the light source is controlled to adjust the preset light intensity level by using the difference of penetrability of different light intensities and by conducting circuit communication through the blocking excitation photosensitive elements of the plurality of light-isolating sheets under the irradiation of different light intensities, so that the stable driving of the light source after light modulation is ensured.

Description

Driving power supply capable of adaptively adjusting light

Technical Field

The utility model relates to the technical field of light source driving, in particular to a driving power supply capable of adaptively adjusting light.

Background

The LED is used as a novel light source, the LED is widely cited in various fields because of the advantages of strong brightness, low power consumption and long service life, the LED driving is generally realized by adopting an LED switching power supply at present, the timing dimming of the traditional LED driving power supply is relatively fixed, after the dimming power level corresponding to the operating time is set, the lamp can operate according to the set level, the length of the night and the change of the sunny day cannot be automatically changed, so that the light efficiency is carried out all the year round according to the set value, the energy saving efficiency is finally low, and because of the different dimming requirements, the LED switching power supplies adopting different dimming methods are required to be configured, namely, each dimming method is required to correspondingly change and custom-develop the dimming circuit in the LED switching power supply, so that the development cost is increased.

The existing light modulation component is mainly used for light sensing by adopting a photoresistor, the photoresistor is a thin layer of semiconductor substance coated on a glass base plate, metal electrodes are arranged at two ends of the semiconductor, the metal electrodes are connected with outgoing line ends, and the photoresistor is connected into a circuit through the outgoing line ends. In order to prevent the influence of surrounding medium, a layer of paint film is covered on the semiconductor photosensitive layer, the components of the paint film should make the transmittance of the paint film maximum in the most sensitive wavelength range of the photosensitive layer, the photosensitive resistor is controlled by the electrodeless change of the self resistance to carry out electrodeless change when dimming, so that the stability of the current output by the light source is poor, an additional voltage stabilizing circuit is required for power supply control, the structural cost is increased, and the fluctuation change of the light has larger damage to the light source structure if no voltage stabilizing structure exists. In view of the above, the present utility model provides a driving power supply for adaptive dimming, which solves the existing problems and aims to solve the problems and improve the practical value by the technology.

Disclosure of Invention

The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.

The technical scheme adopted by the utility model is as follows: an adaptive dimming driving power supply, comprising: the device comprises a driving box, a PCB control board and a photosensitive seat, wherein a sealing bottom cover is fixedly arranged on one side of the driving box, the photosensitive seat is fixedly arranged on the surface of the PCB control board, the PCB control board and the photosensitive seat are positioned on the inner side of the driving box, fasteners matched with the surface of the PCB control board are arranged on the surface of the driving box, a plurality of photosensitive elements are arranged on the surface of the photosensitive seat, a light receiving guide pillar is sleeved on the surface of the photosensitive element, a light receiving hole communicated with the top surface of the light receiving guide pillar is formed in the surface of the driving box, and a light blocking piece is arranged on the inner side of the light receiving guide pillar.

The present utility model may be further configured in a preferred example to: the surface of the PCB control board is integrated with a power module and a voltage regulating module, the input end of the voltage regulating module is electrically connected with the output end of the photosensitive element, and the voltage regulating module is provided with a plurality of stages of gradient voltage output.

The present utility model may be further configured in a preferred example to: the number of the photosensitive elements is a plurality of the photosensitive elements and the photosensitive elements are arranged on the surface of the photosensitive seat in a matrix manner, and the number and the positions of the light receiving holes are arranged in one-to-one correspondence with the photosensitive elements.

The present utility model may be further configured in a preferred example to: the number of light-insulating sheets in the light-collecting guide post is sequentially increased, and the light-insulating sheets are of dark acrylic film structures.

The present utility model may be further configured in a preferred example to: the inner side of the light receiving guide post is coated with a black glue layer, and the light receiving guide post is arranged perpendicular to the surface of the light sensing seat.

The present utility model may be further configured in a preferred example to: the photosensitive element comprises two oppositely arranged electrodes, and a photoconductor is arranged between the electrodes.

The beneficial effects obtained by the utility model are as follows:

1. according to the utility model, by arranging the novel photosensitive structure, the light source is controlled to adjust the preset light intensity level by using the difference of penetrability of different light intensities and by conducting circuit communication through the blocking excitation photosensitive elements of the plurality of light-isolating sheets under the irradiation of different light intensities, so that the stable driving of the light source after light modulation is ensured.

2. In the utility model, the light sensing is carried out through a plurality of light sensing elements, the light intensity adjustment of different grades is controlled by the light sensing quantity of the light sensing elements, the self-adaptive dimming is realized, the light filtering operation is carried out through the light receiving guide post, the outer Zhou Zaguang interference is avoided, the light intensity in a certain direction is only sensed, and the light sensing accuracy is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic view showing the internal structure of a driving box according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram showing an exploded structure of a photoreceptor seat according to an embodiment of the utility model;

fig. 4 is a schematic cross-sectional view of a light-collecting pillar according to an embodiment of the present utility model.

Reference numerals:

100. a drive box; 110. a fastener; 120. a light receiving hole; 130. sealing the bottom cover;

200. a PCB control board;

300. a photosensitive seat; 310. a photosensitive element; 320. a light receiving guide post; 330. and a light blocking sheet.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

An adaptive dimming driving power supply according to some embodiments of the present utility model is described below with reference to the accompanying drawings.

Referring to fig. 1 to 4, the present utility model provides a driving power supply for adaptive dimming, including: the driving box 100, the PCB control board 200 and the photosensitive seat 300, one side of the driving box 100 is fixedly provided with the sealing bottom cover 130, the photosensitive seat 300 is fixedly arranged on the surface of the PCB control board 200, the PCB control board 200 and the photosensitive seat 300 are positioned on the inner side of the driving box 100, the surface of the driving box 100 is provided with the fastener 110 which is matched with the surface of the PCB control board 200, the surface of the photosensitive seat 300 is provided with a plurality of photosensitive elements 310, the surface of the photosensitive elements 310 is sheathed with the light receiving guide column 320, the surface of the driving box 100 is provided with the light receiving hole 120 which is communicated with the top surface of the light receiving guide column 320, and the inner side of the light receiving guide column 320 is provided with the light blocking sheet 330.

In this embodiment, the surface of the PCB control board 200 is integrated with a power module and a voltage regulation module, the input end of the voltage regulation module is electrically connected with the output end of the photosensitive element 310, and the voltage regulation module is provided with a plurality of stages of gradient voltage outputs.

Specifically, the power supply module and the voltage regulating module are used for carrying out dimming power supply on the light source structure, a plurality of stages of voltages are set up in the voltage regulating module, and different intensity voltage inputs of the light source are carried out so as to carry out light intensity regulation.

In this embodiment, the number of photosensitive elements 310 is several and are arranged on the surface of the photosensitive base 300 in a matrix arrangement, and the number and positions of the light receiving holes 120 are arranged in a one-to-one correspondence with the photosensitive elements 310.

Specifically, the light in a single direction enters through the light receiving hole 120, so that the linear light receiving of the opposite surface of the driving box 100 is performed, interference of peripheral light is avoided, the opposite direction of the driving box 100 can be changed to be far away from the driven light source, and detection interference caused by the driven light source is avoided.

In this embodiment, the number of light-blocking sheets 330 in the light-receiving guide post 320 increases sequentially, and the light-blocking sheets 330 are dark acrylic film structures.

Specifically, the light shielding operation is performed through the light shielding sheet 330, the light shielding effect is better as the number of layers of the light shielding sheet 330 is larger, so that the light source with low intensity cannot excite the photosensitive element 310 under the blocking of the multi-layer light shielding sheet 330, different light source driving grades are controlled through the number of the excited photosensitive elements 310, the grade gradient adjustment of the light source is realized, and the stability of the light source intensity is maintained.

In this embodiment, the inner side of the light receiving guide post 320 is coated with a black glue layer, and the light receiving guide post 320 is arranged perpendicular to the surface of the light receiving seat 300.

Specifically, the black glue layer on the inner side of the light receiving guide post 320 prevents light from being reflected on the inner side of the light receiving guide post 320, and only captures the light source perpendicular to the direction of the light sensing base 300, so as to further prevent the interference of peripheral stray light.

In this embodiment, the photosensitive element 310 includes two oppositely disposed electrodes with a photoconductor disposed therebetween.

Specifically, when light irradiates the photoconductor, if the photoconductor is made of intrinsic semiconductor material and the light radiation energy is strong enough, electrons on the valence band of the photoconductive material will be excited to the conduction band, so that the electrons of the conduction band and holes of the valence band are increased, the conductivity of the photoconductor is increased, the transition of energy level is realized, and the conductivity is increased to connect the circuit between the two electrodes to trigger an electric signal after the photoconductor receives light.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. An adaptive dimming driving power supply, comprising: drive box (100), PCB control panel (200) and sensitization seat (300), one side fixed mounting of drive box (100) has sealed bottom (130), sensitization seat (300) fixed mounting is in PCB control panel (200) surface, PCB control panel (200) and sensitization seat (300) are located the inboard of drive box (100), and the surface of drive box (100) be equipped with fastener (110) with PCB control panel (200) surface looks adaptation, the surface of sensitization seat (300) is equipped with a plurality of photosensitive element (310), the surface of photosensitive element (310) has cup jointed receipts light guide pillar (320), the surface of drive box (100) is equipped with receipts light hole (120) that are linked together with receipts light guide pillar (320) top surface, the inboard of receipts light guide pillar (320) is equipped with light barrier piece (330).

2. The adaptive dimming driving power supply according to claim 1, wherein a power module and a voltage regulating module are integrated on the surface of the PCB control board (200), an input end of the voltage regulating module is electrically connected with an output end of the photosensitive element (310), and the voltage regulating module is provided with a plurality of stages of gradient voltage outputs.

3. The driving power supply for adaptive dimming according to claim 1, wherein the number of the photosensitive elements (310) is several and the photosensitive elements are arranged on the surface of the photosensitive base (300) in a matrix arrangement, and the number and positions of the light receiving holes (120) are arranged in a one-to-one correspondence with the photosensitive elements (310).

4. The driving power supply for adaptive dimming according to claim 1, wherein the number of light-blocking sheets (330) in the light-receiving guide post (320) is sequentially increased, and the light-blocking sheets (330) are of a dark acrylic film structure.

5. The adaptive dimming driving power supply according to claim 1, wherein the inner side of the light receiving guide post (320) is coated with a black glue layer, and the light receiving guide post (320) is arranged perpendicular to the surface of the light receiving seat (300).

6. An adaptive dimming driving power supply according to claim 1, characterized in that the photosensitive element (310) comprises two oppositely arranged electrodes with a photoconductor arranged between them.