CN213237399U

CN213237399U - Mobile lighting equipment capable of automatically adjusting light

Info

Publication number: CN213237399U
Application number: CN202022488131.2U
Authority: CN
Inventors: 胡敏
Original assignee: Dongguan Aolei Mobile Lighting Equipment Co Ltd
Current assignee: Dongguan Aolei Mobile Lighting Equipment Co Ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-05-18
Anticipated expiration: 2030-11-02

Abstract

The utility model belongs to the lighting device field relates to a can automatic mobile lighting equipment who adjusts luminance, include: lamp main part, fixed mounting extremely lamp plate, fixed mounting in the lamp main part extremely reflection of light cup, fixed mounting on the lamp plate extremely circuit board, fixed mounting in the lamp main part extremely optic fibre in the lamp main part and installation extremely photosensitive sensor in the lamp main part, the lamp plate reaches photosensitive sensor all with the circuit board electricity is connected, the first end of optic fibre with reflection of light cup is connected, the second end of optic fibre is aimed at photosensitive sensor, still be formed with into the unthreaded hole on the reflection of light cup, it is close to go into the unthreaded hole the first end of optic fibre sets up and follows with the reflection light that will receive reflection of light cup the first end transmission of optic fibre is held to the second of optic fibre. Its advantage lies in, when the light-emitting window of mobile lighting equipment was sheltered from by combustible substance, mobile lighting equipment can the automatically regulated light intensity, prevents that combustible substance from taking place the burning to effectively avoid danger.

Description

Mobile lighting equipment capable of automatically adjusting light

Technical Field

The utility model belongs to the lighting device field relates to a can automatic mobile lighting equipment who adjusts luminance.

Background

Common mobile lighting equipment can appear inflammable substance and shelter from the condition of light-emitting window when using, and the time that light-emitting window when mobile lighting equipment is sheltered from is too long, and the lamp plate can produce and generate heat to make mobile lighting equipment's light-emitting window high temperature cause inflammable substance to be lighted, thereby cause the fire hazard easily, consequently need fall the light processing to the light source, present common processing method has following several: 1. using an infrared proximity sensor to detect the shielded distance, but using an infrared proximity sensor increases the cost of the mobile lighting device; 2. utilize ultrasonic wave distance sensor to detect the distance that is sheltered from, but ultrasonic wave distance sensor is bulky, to the less mobile lighting apparatus of volume, is difficult to install to in the mobile lighting apparatus.

Disclosure of Invention

An object of the utility model is to prior art not enough, provide a but mobile lighting device of automatic dimming, when mobile lighting device's light-emitting mouth was sheltered from by combustible object, mobile lighting device can the automatically regulated light intensity, reduces the lamp plate and generates heat, prevents that combustible object from taking place the burning to effectively avoid dangerous, reach the purpose that promotes mobile lighting device and use and experience.

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

an automatically dimmable mobile lighting device, comprising: lamp main part, fixed mounting extremely lamp plate, fixed mounting in the lamp main part extremely reflection of light cup, fixed mounting on the lamp plate extremely circuit board, fixed mounting in the lamp main part extremely optic fibre in the lamp main part and installation extremely photosensitive sensor in the lamp main part, the lamp plate reaches photosensitive sensor all with the circuit board electricity is connected, the first end of optic fibre with reflection of light cup is connected, the second end of optic fibre is aimed at photosensitive sensor, still be formed with on the reflection of light cup and be used for receiving the light of reflection of light cup reflection goes into the unthreaded hole, it is close to go into the unthreaded hole the first end setting of optic fibre is followed with the reflection of light that will receive reflection of light cup the first end transmission of optic fibre is to the second end of optic fibre, first end with the second end is relative.

Further, the circuit board includes: the main circuit is connected with the single chip microcomputer U5, and the photosensitive sensor is connected with the single chip microcomputer U5.

Further, the photosensitive sensor includes: the utility model discloses a photosensitive resistor Q11, photosensitive resistor Q11's model is PT3528AC photosensitive resistor Q11's one end ground connection, photosensitive resistor's the other end still is connected with resistance R31, singlechip U5 is connected to resistance R31's the other end.

Further, the singlechip U5 is also connected with a voltage stabilizing circuit.

Further, the main circuit comprises a DC-DC power conversion chip U2, a power supply circuit and an operational amplifier circuit, the power supply circuit is connected with the DC-DC power conversion chip U2, and the operational amplifier circuit is respectively connected with the DC-DC power conversion chip U1 and the single chip microcomputer U5.

Further, the singlechip U5 is also connected with a switch SW, and the other end of the switch SW is grounded.

Furthermore, the model of the single chip microcomputer U5 is PIC16F1824, pin 6 of the single chip microcomputer U5 is connected with the resistor R31, and pin RC3 of the single chip microcomputer U5 is connected to a connection point between the photosensitive resistor Q11 and the resistor R31.

Further, the singlechip U5 is also connected with a temperature detection circuit.

Further, the single chip microcomputer U5 is also connected with a low-voltage detection circuit.

The utility model has the advantages that:

through with anti-light cup, optic fibre and photosensitive sensor combine together, make anti-light cup reflected light can be transmitted to the second end of optic fibre by the first end of optic fibre through going into the unthreaded hole, and be used in to photosensitive sensor, when lighting apparatus's light-emitting window is sheltered from, anti-light cup reflected light intensity changes and makes the light intensity that is used in to photosensitive sensor change, make the magnitude of voltage in the circuit also change, mobile lighting apparatus can be according to the change automatically regulated light intensity of magnitude of voltage, make the reduction of generating heat of lamp plate, prevent that combustible substance from taking place the burning, thereby effectively avoid danger, reach the purpose that promotes mobile lighting apparatus and use the experience.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

fig. 2 is a schematic diagram of the single chip microcomputer U5 of the present invention;

FIG. 3 is a schematic diagram of the voltage regulator circuit of the present invention;

fig. 4 is a schematic diagram of the connection between the photosensitive sensor and the single chip microcomputer U5;

FIG. 5 is a schematic diagram of the temperature detection circuit of the present invention;

FIG. 6 is a schematic diagram of the low voltage detection circuit of the present invention;

FIG. 7 is a schematic diagram of the main circuit of the present invention;

fig. 8 is a schematic diagram of the connection between the switch SW and the single chip microcomputer U5 according to the present invention.

The labels in the figure are: 100-a lamp body; 200-a lamp panel; 300-a light reflecting cup, 310-a light inlet hole; 400-a circuit board; 500-an optical fiber; 600-photosensitive sensor.

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 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 exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

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 those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not 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 limited otherwise.

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

Referring to fig. 1, an automatically dimmable mobile lighting device includes: lamp body 100, fixed mounting is to lamp plate 200 in the lamp body 100, reflector cup 300 on fixed mounting to lamp plate 200, fixed mounting is to circuit board 400 in the lamp body 100, fixed mounting is to optic fibre 500 in the lamp body 100 and install the photosensitive sensor 600 in the lamp body 100, lamp plate 200 and photosensitive sensor 600 all are connected with circuit board 400 electricity, optic fibre 500's first end is connected with reflector cup 300, optic fibre 500's second end is aimed at photosensitive sensor 600, still be formed with the income unthreaded hole 310 that is used for receiving the light of reflector cup 300 reflection on the reflector cup 300, it sets up in order to transmit the reflected light that receives reflector cup 300 to optic fibre 500's second end from optic fibre 500's first end to go into the first end setting of unthreaded hole 310 near optic fibre, first end is relative with the second end.

Referring to fig. 2 and 7, in the above embodiment, the circuit board 400 includes: the main circuit is connected with the single chip microcomputer U5, and the photosensitive sensor 600 is connected with the single chip microcomputer U5.

Referring to fig. 4, in the above embodiment, the photosensor 600 includes: the utility model discloses a photosensitive resistor Q11, photosensitive resistor Q11's model is PT3528AC photosensitive resistor Q11's one end ground connection, photosensitive resistor's the other end still is connected with resistance R31, singlechip U5 is connected to resistance R31's the other end, it is specific, singlechip U5's model is PIC16F1824, singlechip U5's No. 6 pin is connected with resistance R31, singlechip U5's No. 7 pin RC3 is connected to the tie point between photosensitive resistor Q11 and the resistance R31. In the above embodiment, the main circuit includes a DC-DC power conversion chip U2, a power supply circuit and an operational amplifier circuit, the power supply circuit is connected to a DC-DC power conversion chip U2, and the operational amplifier circuit is connected to a DC-DC power conversion chip U1 and a single chip microcomputer U5, respectively, in this embodiment, the model of the DC-DC power conversion chip U2 is SC8329, pin VOUT 1 of the chip SC8329 is connected to the positive access port LED + of the lamp panel 200, pin VOUT 1 of the chip SC8329 is further connected in parallel with a capacitor C4, a capacitor C5 and a capacitor C6, and the other ends of the capacitor C4, the capacitor C5 and the capacitor C6 are all grounded, wherein the specification of the capacitor C4 is 1uF/16V, the specifications of the capacitors C5 and C6 are both 22uF/25V, pin PGND 2 of the chip SC8329 is grounded, pin FB 8329 is connected in series with a resistor R4, and the resistance of the resistor R4 is larger than or smaller than 470K, a resistor R2 is further connected in series between the pin VOUT 1 of the chip SC8329 and the pin FB 3 of the chip SC8329, the resistance value of the resistor R2 is 1M Ω, the pin FB 3 of the chip SC8329 is further connected with a resistor R6, the other end of the resistor R6 is grounded, the resistance value of the resistor R6 is 100k ohms, the pin COMP 4 of the chip SC8329 is sequentially connected in series with capacitors C13 and R9 and then grounded, the capacitance of the capacitor C13 is 47nF, the resistance value of the resistor R9 is 1k ohms, the pin AGND 5 of the chip SC8329 is grounded, the pin AGND 5 of the chip SC8329 is connected in series with the pin PGND 2 of the chip SC8329, the pin ILIM of the chip SC8329 is connected in series with the resistor R5 and then grounded, the resistance value of the resistor R5 is 120k ohms, the pin FSW 7 of the chip SC8329 is sequentially connected in series with the resistors R1 and L1 and then connected with the pin BAT + of the power supply circuit, the other end of the inductor SC 29, the capacitor UF 858 is connected with the capacitor UF 12, a capacitor C3 is connected between a pin SW 9 of the chip SC8329 and a pin BOOT 10 of the chip SC8329, the capacity of the capacitor C3 is 0.1uF, the pin SW 9 of the chip SC8329 is also connected to a connection point between a resistor R1 and an inductor L1, the pin VIN 11 of the chip SC8329 is connected with a capacitor C11, the other end of the capacitor C11 is grounded, the capacity of the capacitor C11 is 0.1UF, the pin VIN 11 of the chip SC8329 is also connected with a BAT + connection point of an inductor L1 and a power supply circuit, the pin 13 of the chip SC8329 is connected with a pin RC5 5 of the singlechip U5, the pin VO _ F14 of the chip SC8329 is connected to a connection point of a pin VOUT 1 of the singlechip U5 and the capacitor C5, a capacitor C8 is also connected between the inductor L1 and a BAT + of the power supply circuit, the other end of the capacitor C8 is grounded, the specification of the capacitor C8 is 22uF/10V, a positive electrode of the BAT + battery is connected with a battery, and a negative electrode of the, the specification of the capacitor C7 is 22UF/10V, and the connection end of a battery negative electrode access port BAT-and the capacitor C6 is grounded; the operational amplifier circuit includes: an operational amplifier U9, in this embodiment, the model of the operational amplifier U9 is TLV333, a pin 1 of the operational amplifier U9 is connected in series with a resistor R3 and then connected with a negative electrode access port LED of the lamp panel 200, the negative electrode access port LED of the lamp panel 200 is also connected with a resistor R15, and the resistance value of the resistor R3 is 12K ohms; pin 2 of the operational amplifier U9 is grounded; the No. 3 pin of the operational amplifier U9 is connected with a resistor R14 in series and then grounded, and the size of the resistor R14 is 12K omega; a pin 3 of the operational amplifier U9 is further connected with a capacitor C16 and a resistor R10, the capacitor C16 is 0.1UF, the resistor R10 is 330K Ω, the resistor R10, the resistor R14 and the capacitor C16 are connected in parallel, the other end of the resistor R10 is connected with a capacitor C15 and a resistor R12 respectively, the capacitor C15 and the resistor R12 are connected in parallel, the other end of the resistor R12 is connected to a pin RA4 3 of the singlechip U5, the other end of the capacitor C15 is grounded, the resistor R12 is 330K Ω, the capacitor C15 is 0.1UF, and a pin 4 of the operational amplifier U9 is connected with one end of the resistor R4; no. 5 pin of the operational amplifier U9 is connected with No. 5 pin RC5 of the singlechip U5, the connection point of the No. 5 pin of the operational amplifier U9 and the No. 5 pin RC5 of the singlechip U5 is also connected with a capacitor C10, the other end of the capacitor C10 is grounded, and the capacity of the capacitor C10 is 0.1 uF.

Referring to fig. 2 and fig. 3, in the above embodiment, the single chip microcomputer U5 is further connected with a voltage stabilizing circuit, the voltage stabilizing circuit includes a voltage regulator U8, pin 1 VDD of the single chip microcomputer U5 is connected with the voltage stabilizing circuit, specifically, pin 2 VOUT of the voltage regulator U8 is connected with pin 1 VDD of the single chip microcomputer U5, pin 3 VIN of the voltage regulator U8 is connected with the BAT + end of the power supply circuit, pin 1 GND of the voltage regulator U8 is grounded, one end of pin 3 VIN of the voltage regulator is further connected with a capacitor C23, one end of pin 2 VOUT of the voltage regulator is further connected with a capacitor C24, the other end of the capacitor C23 is grounded, in this embodiment, the specifications of the capacitor C23 and the capacitor C24 are both 1uF/10V, wherein the model number of the voltage regulator U8 is BL 8503-30.

Referring to fig. 2 and 8, in the above embodiment, the single chip microcomputer U5 is further connected with a switch SW, specifically, one end of the switch SW is connected to the No. 2 pin RA5 of the single chip microcomputer U5, and the other end of the switch SW is grounded.

Referring to fig. 5, in the above embodiment, the single chip microcomputer U5 is further connected to a temperature detection circuit, and the temperature detection circuit includes: the LED lamp comprises a resistor R7 and a variable resistor RT1 which are sequentially connected in series, the other end of the resistor R12 is connected to a pin VOUT 2 of a voltage stabilizer U8, the other end of the variable resistor RT1 is grounded, a pin RA1 12 of a single chip microcomputer U5 is connected to a connection point between a resistor R12 and a variable resistor RT1, the resistance value of the resistor R7 is 10K, the type of the variable resistor is 10K _ NTCT, the temperature inside the headlamp can be detected by arranging a temperature detection circuit, the resistance value of the RT1 is changed by the change of the temperature through RT1, when the resistance value of the RT 7 is changed, the voltage value of a node between R7 and RT1 is transmitted to the inside of the single chip microcomputer U5 through the pin 12 of the single chip microcomputer U5, the single chip microcomputer U5 dynamically adjusts the duty ratio of the pin 3 of the single chip microcomputer U5 according to the change of the voltage value of the node between R12 and RT1, and.

Referring to fig. 6, in the above embodiment, the single chip microcomputer U5 is further connected to a low voltage detection circuit, where the low voltage detection circuit includes: the resistance R8 and the resistance R13 that connect in series in proper order, the other end of resistance R8 is connected in supply circuit's BAT + end, and the other end ground connection of resistance R14, singlechip U5's 13 number pin RA0 connect in the tie point between resistance R8 and resistance R13, and the resistance of resistance R8 is 1M, and the resistance of resistance R13 is 200K.

The working principle is as follows: the state of the lighting equipment is switched and dimming is carried out through the adjusting switch SW, so that different brightness of the lighting equipment is selected through the adjusting switch as required, signals are transmitted to the single chip microcomputer U5 through the No. 2 pin of the single chip microcomputer U5 through the adjusting switch SW and are processed, signals are output to a main circuit through the No. 3 pin, the No. 5 pin and the No. 9 pin of the single chip microcomputer U5, the LED equipment is lightened, when the front of the LED equipment is not shielded, the light entering amount of the optical fiber 500 is small, the photoresistor Q11 is not changed, and the AD value of the voltage divided by the resistor R31 is not changed; when the LED equipment is shielded by an object, the light reflection amount of the light reflection cup 300 is increased, the light incoming amount of the optical fiber 500 is increased, the photosensitive resistor Q11 is conducted in the forward direction, the resistance value of the photosensitive sensor 600 is reduced, and the AD value of the partial pressure of the photosensitive sensor and the resistance R31 is reduced, so that a signal changing the AD value is transmitted to the singlechip U5 through the No. 6 pin RC4 and the No. 7 pin RC3 of the singlechip U5 for processing, the singlechip U5 processes the AD value according to the obtained value, and outputs the signal to the main circuit through the No. 3 pin RA4, the No. 5 pin RC5 and the No. 9 pin RC1 of the singlechip U5, and the main circuit controls the brightness output of the mobile lighting equipment according to the obtained signal; when the shelter is taken away, the light reflection amount of the light reflection cup 300 is reduced, the light incoming amount of the optical fiber 500 is reduced, the photosensitive resistor Q11 is cut off reversely, the resistance value of the photosensitive resistor Q11 is increased, and the AD value of the partial voltage of the light reflection cup and R31 is increased, so that the signal changing the AD value is transmitted to the singlechip U5 through the No. 6 pin RC4 and the No. 7 pin RC3 of the singlechip U5 for processing, the singlechip U5 processes the signal according to the obtained AD value, outputs the signal to the main circuit through the No. 3 pin RA4, the No. 5 pin RC5 and the No. 9 pin RC1 of the singlechip U5, and the main circuit controls the brightness output of the mobile lighting equipment according to the obtained signal, so that the brightness; the AD value is a value obtained by converting an analog quantity (e.g., current or voltage) into a digital quantity.

The above-mentioned embodiments are only one of the preferred embodiments of the present invention, and the ordinary changes and substitutions performed by those skilled in the art within the technical scope of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatically dimmable mobile lighting device, comprising: lamp main part, fixed mounting extremely lamp plate, fixed mounting in the lamp main part extremely reflection of light cup, fixed mounting on the lamp plate extremely circuit board, fixed mounting in the lamp main part extremely optic fibre in the lamp main part and installation extremely photosensitive sensor in the lamp main part, the lamp plate reaches photosensitive sensor all with the circuit board electricity is connected, the first end of optic fibre with reflection of light cup is connected, the second end of optic fibre is aimed at photosensitive sensor, still be formed with on the reflection of light cup and be used for receiving the light of reflection of light cup reflection goes into the unthreaded hole, it is close to go into the unthreaded hole the first end setting of optic fibre is followed with the reflection of light that will receive reflection of light cup the first end transmission of optic fibre is to the second end of optic fibre, first end with the second end is relative.

2. The automatically dimmable mobile lighting unit of claim 1, wherein said circuit board comprises: the main circuit is connected with the single chip microcomputer U5, and the photosensitive sensor is connected with the single chip microcomputer U5.

3. An automatically dimmable mobile lighting device according to claim 2, wherein said light sensitive sensor comprises: the utility model discloses a photosensitive resistor Q11, photosensitive resistor Q11's model is PT3528AC photosensitive resistor Q11's one end ground connection, photosensitive resistor's the other end still is connected with resistance R31, singlechip U5 is connected to resistance R31's the other end.

4. The mobile lighting device capable of automatically dimming according to claim 2, wherein a voltage stabilizing circuit is further connected to the single chip microcomputer U5.

5. The mobile lighting device as claimed in claim 2, wherein the main circuit comprises a DC-DC power conversion chip U2, a power supply circuit and an operational amplifier circuit, the power supply circuit is connected to the DC-DC power conversion chip U2, and the operational amplifier circuit is connected to the DC-DC power conversion chip U1 and the single-chip microcomputer U5 respectively.

6. The mobile lighting device capable of automatically dimming according to claim 2, wherein a switch SW is further connected to the single chip microcomputer U5, and the other end of the switch SW is grounded.

7. The mobile lighting device capable of automatically dimming according to claim 3, wherein the model of the single chip microcomputer U5 is PIC16F1824, pin 6 of the single chip microcomputer U5 is connected with the resistor R31, and pin 7 RC3 of the single chip microcomputer U5 is connected to a connection point between the photosensitive resistor Q11 and the resistor R31.

8. The mobile lighting device capable of automatically dimming according to claim 2, wherein the single chip microcomputer U5 is further connected with a temperature detection circuit.

9. The mobile lighting device capable of automatically dimming according to claim 2, wherein the single chip microcomputer U5 is further connected with a low voltage detection circuit.