CN216057548U

CN216057548U - Mobile lighting equipment capable of automatically adjusting light

Info

Publication number: CN216057548U
Application number: CN202120776285.3U
Authority: CN
Inventors: 卢雪锋; 鄢遍
Original assignee: Dongguan Aolei Mobile Lighting Equipment Co Ltd
Current assignee: Dongguan Aolei Mobile Lighting Equipment Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-03-15
Anticipated expiration: 2031-04-16

Abstract

The utility model belongs to the technical field of lighting devices, and relates to a mobile lighting device capable of automatically dimming, which comprises: the stack shell, set firmly the power in the stack shell and set firmly the circuit board in the stack shell, be equipped with control unit and LED drive unit on the circuit board, still be equipped with LED drive unit in the stack shell, a power supply, ambient light detecting unit and LED drive unit all are connected with control unit, control unit is used for receiving light intensity data and sends the dimming signal of adjusting mobile lighting device illumination luminance, LED drive unit is used for receiving the dimming signal that control unit produced, and adjust the illumination luminance of LED lamp D3 output, ambient light detecting unit is used for gathering light intensity signal and sending light intensity data. The mobile lighting device has the advantages that when the head temperature of the mobile lighting device is too high due to the close-range irradiation use of the lighting device, the mobile lighting device can automatically adjust the luminous intensity of the LED lamp D3, so that the damage of the mobile lighting device caused by the too high temperature of the head of the mobile lighting device is avoided.

Description

Mobile lighting equipment capable of automatically adjusting light

Technical Field

The utility model belongs to the technical field of lighting devices, and relates to a mobile lighting device capable of automatically dimming.

Background

The common mobile lighting device realizes the output and change of the lighting mode by touching the key or the mechanical key, fig. 5 is a schematic diagram of an application circuit of the common mobile lighting device, and when the single chip microcomputer is pressed down by touching the key SW1, the LED of the lighting device is turned on or the brightness of the LED lighting is adjusted, and only the key is operated: the output illumination mode of the LED is adjusted in a single-click mode, a double-click mode, a triple-click mode, a long-press mode and the like, when the LED is lightened and a key is not actuated, the output brightness cannot be changed, when the illumination device is used in a short-distance irradiation mode, for example, the light emitting surface is close to a human body or placed on a table top, paper and the like, the output brightness cannot be automatically changed, however, when the mobile illumination device is used in a short distance for too long time, light rays generated by the mobile illumination device are reflected into the mobile illumination device, the temperature of the head of the mobile illumination device can be sharply increased, and therefore the internal circuit of the mobile illumination device is easily damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a mobile lighting device capable of automatically dimming, wherein when the temperature of the head of the mobile lighting device is too high due to the close-range irradiation use of the lighting device, the mobile lighting device can automatically adjust the luminous intensity of an LED lamp, so that the damage of the mobile lighting device caused by the too high temperature of the head of the mobile lighting device is avoided.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an automatically dimmable mobile lighting device, comprising: barrel and power still include: the LED driving circuit comprises a circuit board, a light source and a light source, wherein a control unit and an LED driving unit are arranged on the circuit board;

the control unit is used for receiving the light intensity data and sending a dimming signal for adjusting the illumination brightness of the mobile lighting equipment;

the LED driving unit is used for receiving the dimming signal generated by the control unit and adjusting the illumination brightness output by the LED lamp D3;

an ambient light detection unit used for collecting light intensity signals and sending light intensity data is further arranged in the cylinder body.

Further, the ambient light detection unit includes: an ambient light sensor U8, the ambient light sensor being connected to the control unit.

Furthermore, a reset unit is connected to the ambient light sensor.

Further, the reset unit includes: resistance R23 and electric capacity C12, the VCC end of resistance R23 and ambient light sensor U8 is connected, ground connection behind electric capacity C12 is connected to the other end of resistance R23, just the looks connection end of resistance R23 and electric capacity C12 is connected with the DIV end of ambient light sensor U8.

Further, the control unit comprises a single chip microcomputer U7, an RA1 end of the single chip microcomputer U7 is connected with an SDA end of the ambient light sensor U8, and an RA2 end of the single chip microcomputer U7 is connected with an SCL end of the ambient light sensor U8.

Specifically, the model of the single chip microcomputer is PIC16LF 18313.

Furthermore, the head of stack shell is equipped with the piece that shades, the piece that shades is close to the light-emitting port direction of mobile lighting equipment is equipped with the mounting groove, ambient light sensor U8 is fixed in the mounting groove.

Further, the opening of the mounting groove faces the light outlet.

Further, the mounting groove is located between the light outlet of the mobile lighting device and the light source in the mobile lighting device.

Further, the mounting groove is the arc wall that the middle zone is low, and the both ends region is high, ambient light sensor U8 locates the middle zone of arc wall.

The utility model has the beneficial effects that:

by combining the control unit, the LED driving unit and the ambient light detection unit, when the lighting device is used in a short-distance irradiation mode, the mobile lighting device can automatically adjust the luminous intensity, so that the situation that the mobile lighting device is close to a human body in a short-distance irradiation mode or placed on a table top, paper and the like, light generated by the mobile lighting device is reflected into the mobile lighting device, and the head of the mobile lighting device is damaged due to overhigh temperature is avoided; by arranging the ambient light sensor U8, the mobile lighting equipment can detect the change of the light intensity in the mobile lighting equipment; by arranging the resistor R23 and the capacitor C12, the mobile lighting device can form a simple reset unit, so that when the mobile lighting device is powered on once, a DIV port of the ambient light sensor U8 generates a reset signal, and the ambient light sensor U8 is ensured to be reset once when the mobile lighting device is powered on once; the RA1 end of the single-chip microcomputer U7 is connected with the SDA end of the ambient light sensor U8, and the RA2 end of the single-chip microcomputer U7 is connected with the SCL end of the ambient light sensor U8, so that light intensity data detected by the ambient light sensor U8 can be sent to the single-chip microcomputer U7, the single-chip microcomputer U7 can send out dimming signals to control the illumination intensity of an LED lamp, and self-adaptive dimming of the mobile lighting equipment is achieved; by arranging the light shielding piece, the installation groove is formed in the light shielding piece, and the ambient light sensor U8 is installed in the installation groove, so that the situation that the illumination intensity of the LED lamp is reduced due to the fact that light generated by the LED lamp acts on the ambient light sensor U8 when the mobile lighting equipment is not used in a short distance and is manually turned on can be avoided; with the opening of mounting groove towards the light-emitting window setting, when can guaranteeing that mobile lighting device uses closely, reflect to the inside light furthest's of mobile lighting device effect to environment light sensor U8, thereby guarantee the change that detects the inside light intensity of mobile lighting device that environment light sensor U8 can be accurate, set up to the middle zone height through the mounting groove, the arc wall that both ends are regional low can reduce because the LED lamp is used to environment light sensor U8's light when manual accent bright mobile lighting device.

Drawings

FIG. 1 is a schematic diagram of the working principle of the present invention;

FIG. 2 is a schematic diagram of an ambient light detection unit according to the present invention;

FIG. 3 is a schematic diagram of the LED driving unit, the voltage stabilizing unit and the control unit when they are connected;

fig. 4 is a schematic structural view of a mobile lighting device;

fig. 5 is a schematic diagram of the working principle of a common mobile lighting device.

Description of the drawings: 100-cylinder body, 110-gear shifting switch.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating 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 the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 4, an automatically dimmable mobile lighting device includes: the barrel 100, set firmly the power in the barrel 100 and set firmly the circuit board in the barrel 100, be equipped with control unit and LED drive unit on the circuit board, still be equipped with LED drive unit in the barrel 100, the power, ambient light detecting unit and LED drive unit all are connected with control unit, control unit is used for receiving light intensity data and sends the dimming signal of adjusting the mobile lighting device illumination luminance, LED drive unit is used for receiving the dimming signal that control unit produced to adjust the illumination luminance of LED lamp D3 output, ambient light detecting unit is used for gathering the light intensity signal and sending the light intensity data.

In the above embodiment, the ambient light detection unit includes: ambient light sensor U8, ambient light sensor U8 is connected with the control unit, and is further, is connected with the reset unit on the ambient light sensor, and is concrete, and the reset unit includes: the environment light sensor comprises a resistor R23 and a capacitor C12, one end of a resistor R23 is connected with a VCC end of an environment light sensor U8, the other end of the resistor R23 is connected with a capacitor C12 and then grounded, and a connection end of a resistor R23 and a capacitor C12 is connected with a DIV end of the environment light sensor U8, further, in order to enhance the stability of the environment light sensor U8 in working, a capacitor C11 is connected between the VCC end and the GND end of the environment light sensor U8, in the embodiment, the environment light sensor U8 is BH1750FVI, the capacitors C11 and C12 are both 0.1uF, and the resistance value of the resistor R23 is 1K; the BH1750FVI ambient light sensor is a digital light intensity sensor integrated circuit used for a two-wire serial BUS interface, the integrated circuit can adjust the brightness of a liquid crystal or a keyboard background light according to collected light intensity data, can detect light intensity change in a large range by using the high resolution of the integrated circuit, supports an I2C BUS interface (f/s Mode Support), has spectral sensitivity characteristic (peak sensitivity wavelength typical value: 560nm) close to visual sensitivity, outputs a digital value corresponding to the brightness, corresponds to a wide input light range (equivalent to 1-65535lx), realizes low current by reducing power function, and realizes stable measurement by a 50Hz/60Hz light noise removing function.

In the above embodiment, the control unit includes singlechip U7, the RA1 end of singlechip U7 is connected with the SDA end of ambient light sensor U8, the RA2 end of singlechip U7 is connected with the SCL end of ambient light sensor U8, RA4 end and RA3 end of singlechip U7 all are connected with the LED drive unit, still even have electric capacity C10 between the VDD end of U7 of singlechip and VSS section, it is concrete, the model of singlechip is PIC16LF18313, in this embodiment, the model of electric capacity C10 is 0.1 uF.

In the above-mentioned embodiment, in order to guarantee that the singlechip can steady operation, still be connected with the voltage stabilizing unit on the control unit, the voltage stabilizing unit includes: the voltage stabilizer U5, the VIN end of voltage stabilizer U5 is connected with the power, and the VIN end of voltage stabilizer U5 still is connected with electric capacity C8, the other end of electric capacity C8 is ground connection, the GAND end of voltage stabilizer U5 is ground connection, the OUT end of voltage stabilizer U5 is connected with the VDD end of singlechip U7, the OUT end of voltage stabilizer U5 still is connected with electric capacity C9, the other end of electric capacity C9 is ground connection, in this embodiment, the model of voltage stabilizer U5 is BL8503, and the electric capacity of electric capacity C8 and electric capacity C9 are 10 UF.

In the above embodiment, the barrel 100 is further provided with a shift switch 110, and the shift switch 110 is electrically connected to the circuit board.

In the above-mentioned embodiment, the head of stack shell 100 is equipped with the anti-dazzling element, the anti-dazzling element is close to the light-emitting opening direction that removes lighting apparatus and is equipped with the mounting groove, ambient light sensor U8 is fixed in the mounting groove, and is concrete, and the mounting groove is middle zone low, the arc wall that the both ends region is high, and the middle zone of arc wall is located to ambient light sensor U8, and is further, the opening of mounting groove sets up towards the light-emitting opening, and in this embodiment, the mounting groove is located between the light-emitting opening of removing lighting apparatus and the light source in the removing lighting apparatus.

The working principle is as follows: the voltage stabilizer U5 provides 3.3V voltage to supply power to the single chip microcomputer U7 and the ambient light sensor U8, the single chip microcomputer U7 controls the LED driving module to drive the LED to emit high-power strong light through the ports RA4 and RA3, meanwhile, the single chip microcomputer U7 reads light intensity data sent by the SDA port and the SC L port of the ambient light sensor U8 through the ports RA1 and RA2, when the device irradiates close to a human body in a short distance or is placed on a table, paper and the like, the ambient light sensor U8 sends the detected light intensity data to the single chip microcomputer U7, the single chip microcomputer U7 enables the ports RA4 and RA3 to control the LED driving unit to adjust the output brightness of the LED lamp D3 through internal calculation, and therefore adaptive light adjustment of the mobile lighting device is achieved.

The above-described embodiments are only one of the preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims

1. An automatically dimmable mobile lighting device, comprising: stack shell and power, its characterized in that still includes: the LED driving circuit comprises a circuit board, a light source and a light source, wherein a control unit and an LED driving unit are arranged on the circuit board;

an ambient light detection unit for collecting light intensity signals and sending light intensity data is further arranged in the cylinder body; the ambient light detection unit includes: the environment light sensor U8, the environment light sensor with the control unit is connected, be connected with the reset unit on the environment light sensor.

2. An automatically dimmable mobile lighting device according to claim 1, wherein said reset unit comprises: resistance R23 and electric capacity C12, the VCC end of resistance R23 and ambient light sensor U8 is connected, ground connection behind electric capacity C12 is connected to the other end of resistance R23, just the looks connection end of resistance R23 and electric capacity C12 is connected with the DIV end of ambient light sensor U8.

3. The mobile lighting device capable of automatically dimming according to claim 1 or 2, wherein the control unit comprises a single chip microcomputer U7, the RA1 terminal of the single chip microcomputer U7 is connected with the SDA terminal of the ambient light sensor U8, and the RA2 terminal of the single chip microcomputer U7 is connected with the SCL terminal of the ambient light sensor U8.

4. The mobile lighting device capable of automatically dimming according to claim 3, wherein the single chip microcomputer is of the type PIC16LF 18313.

5. The mobile lighting device according to claim 4, wherein the head of the barrel is provided with a light shielding member, the light shielding member is provided with a mounting groove near the light outlet of the mobile lighting device, and the ambient light sensor U8 is fixed in the mounting groove.

6. An automatically dimmable mobile lighting device according to claim 5, wherein an opening of said mounting groove is disposed toward said light outlet.

7. The mobile lighting device capable of automatically dimming according to claim 6, wherein the mounting groove is located between the light outlet of the mobile lighting device and the light source in the mobile lighting device.

8. The mobile lighting device as claimed in claim 7, wherein the mounting groove is an arc-shaped groove with a lower middle area and higher two end areas, and the ambient light sensor U8 is disposed in the middle area of the arc-shaped groove.