CN216600132U

CN216600132U - Handheld lamp system and device thereof

Info

Publication number: CN216600132U
Application number: CN202122682861.0U
Authority: CN
Inventors: 郭毅; 欧阳正伟; 刘宗金
Original assignee: Xiamen Guangyuan Lighting Co ltd
Current assignee: Xiamen Guangyuan Lighting Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-05-24
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a handheld lamp system which comprises a control module and a light module, wherein the control module comprises a single chip microcomputer and an MOS (metal oxide semiconductor) tube, the single chip microcomputer is electrically connected with the MOS tube, the light module is electrically connected with the MOS tube, and the single chip microcomputer can control the conduction degree of the MOS tube by outputting PWM (pulse width modulation) signals with different duty ratios so as to control the brightness of the light module. A handheld lamp device comprises the handheld lamp system and a main body, wherein a lamp light module is arranged on the main body, and a control module is arranged in an inner cavity of the main body. Through the light module setting in the main part, control module sets up in the inner chamber of main part, and this handheld lamp device can be handed to the user. Through the conduction degree that singlechip can control the MOS pipe through the PWM signal of exporting different duty cycles among the control module to control the luminance of light module can realize then that lamp luminance delays to light, avoids abrupt highlight to cause the injury to people's eyes.

Description

Handheld lamp system and device thereof

Technical Field

The utility model relates to the technical field of LED lamp control, in particular to a handheld lamp system and a device thereof.

Background

The handheld working lamp is a lamp widely applied to the fields of automobile repair, factory buildings, construction sites and the like, and has the characteristics of various sizes, multiple functions, convenience in moving and the like.

At present, most of handheld lighting products in the market use an LED semiconductor as a light source, the light is generally turned on in a direct mode, the light source can emit dazzling LED light at the moment of lighting, and the light source is not in a gradual change process from dark to light. Because the eyes of people are stimulated by strong light at a moment in a dark environment, the eyes are easy to lose sight temporarily and hurt.

The above information disclosed in this background section is only for enhancement of understanding of the background of the utility model and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

It is a primary object of the present invention to overcome at least one of the above-mentioned deficiencies in the prior art and to provide a portable lamp system and apparatus that can adjust the brightness of the lamp to provide a time-delayed illumination of the light source when the lamp is turned on.

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

according to one aspect of the utility model, a handheld light system is provided that includes a control module and a light module. The control module comprises a single chip microcomputer and an MOS (metal oxide semiconductor) tube, the single chip microcomputer is electrically connected with the MOS tube, the light module is electrically connected with the MOS tube, and the single chip microcomputer can control the conduction degree of the MOS tube by outputting PWM (pulse width modulation) signals with different duty ratios so as to control the brightness of the light module.

The singlechip controls the conduction degree of the MOS tube by outputting PWM signals with different duty ratios, and the light module is electrically connected with the MOS tube to control the lamp brightness of the light module, so that the light source can be lightened in a delayed manner when the lamp is turned on, and the eyes are protected.

According to an embodiment of the present invention, the light module includes a primary light source and a secondary light source, and the primary light source and the secondary light source are respectively connected to different MOS transistors.

Different MOS tubes are respectively connected with the primary light source and the secondary light source, so that the switching selection of the primary light source or the secondary light source can be realized when the requirements on light are different in different environments.

According to an embodiment of the present invention, the MOS transistor includes a Q1 transistor and a Q2 transistor, a source of the Q1 transistor and a source of the Q2 transistor are grounded, and a drain of the Q1 transistor and a drain of the Q2 transistor are electrically connected to a negative electrode of the primary light source and a negative electrode of the secondary light source, respectively.

Through the electric connection of MOS pipe and primary light source, secondary light source, according to the conduction degree of MOS pipe, can adjust the light intensity of primary light source, secondary light source.

According to an embodiment of the present invention, the control module further includes a plurality of current limiting resistors, and one or more of the current limiting resistors are disposed on the drain and the gate of the MOS transistor.

The current limiting resistor is connected with the grid electrode of the MOS tube, so that the current of the grid electrode can be limited, and the grid electrode is protected; the current-limiting resistor is connected with the drain electrode of the MOS tube, so that the effect of protecting a load lamp connected with the drain electrode of the MOS tube can be achieved.

According to an embodiment of the present invention, the power management device further includes a power management chip, and a seventh pin of the power management chip is connected to the single chip.

According to an embodiment of the present invention, the power supply further comprises a plurality of power display lamps, and the power display lamps are connected to the single chip microcomputer.

The seventh pin through the power management chip is connected with the singlechip to and the electric quantity display lamp is connected with the singlechip, and the singlechip can detect the high-low level state of seventh pin, thereby can judge whether the power is full of, and the electric quantity chi comprises a plurality of LED lamps, can show the electric quantity of battery this moment.

According to an embodiment of the present invention, the portable electronic device further includes a USB interface, wherein the USB interface is electrically connected to the power management chip and the power supply of the portable lamp system.

Through the power electric connection of USB interface and power management chip and handheld lamp system, can realize charging the battery.

According to an embodiment of the present invention, the power supply further comprises a capacitor connected in parallel with the power supply to protect the power supply.

Through the parallelly connected of power and electric capacity, can gentle voltage sudden change, the filtering high frequency noise maintains a period of reaction time after the power outage, plays the effect of protection power.

According to an embodiment of the utility model, the lighting module further comprises an input module, the input module is connected with the single chip microcomputer, and the input module can control the starting, the conversion and the closing of the lighting module.

The input module is connected with the single chip microcomputer, so that the starting, the conversion and the closing of the light module can be realized, and the working mode state of the light module is controlled.

According to another aspect of the utility model, a hand-held light device includes the hand-held light system of any one of the above, and a body on which the light module is disposed, the control module being disposed in an interior cavity of the body.

Through the light module setting in the main part, control module sets up in the inner chamber of main part, and this handheld lamp device can be handed to the user. Through the conduction degree that singlechip can control the MOS pipe through the PWM signal of exporting different duty cycles among the control module to control the luminance of light module can realize then that lamp luminance delays to light, avoids abrupt highlight to cause the injury to people's eyes.

Drawings

Various objects, features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the utility model, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the utility model and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

FIG. 1 is an electrical schematic diagram of a handheld lamp system according to one embodiment.

Fig. 2 is a schematic circuit diagram of a control module (other than MOS) and an input module in a handheld lamp system in accordance with an embodiment.

Fig. 3 is a schematic diagram of the circuit of the Q1 tube, the secondary light source, and the charge indicator light in a handheld lamp system according to one embodiment.

Fig. 4 is a circuit schematic of a Q1 tube and a primary light source in a handheld lamp system according to an embodiment.

Fig. 5 is a schematic circuit diagram of a power module in a handheld lamp system according to an embodiment.

FIG. 6 is a schematic diagram of a hand-held light device according to an embodiment.

Wherein the reference numerals are as follows:

1. a primary light source LED lamp; 2. a secondary light source LED lamp; 3. pressing a key; 4. a USB charging port; 5. a hand-held portion; 10. an input module; 20. a control module; 30. a power supply module; 40. and a light module.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the utility model.

Referring to fig. 1, fig. 1 is a representative handheld lamp system control module, input module, light module, and power module capable of embodying principles of the present invention. Control module and light module are connected with power module respectively, and control module can adjust the luminance of light module lamp, can carry out the time delay and light the light source when turning on the lamp, avoids abrupt highlight to cause the injury to eyes, and power module provides the required power of work for light module and control module.

Referring to fig. 1, a handheld light system that representatively can embody the principles of the present invention in fig. 1 includes a control module 20, an input module 10, a light module 40, and a power module 30. Control module 20 and light module 40 are connected with power module 30 respectively, and control module 20 can adjust the luminance of light module 40 lamp, can carry out the time delay when turning on the light and light the light source, avoids sudden highlight to cause the injury to eyes, and power module 30 provides the required power of work for light module 40 and control module 20.

Referring to fig. 2-4, in another embodiment, the control module 20 includes a single-chip microcomputer U2 and a MOS transistor. Singlechip U2 and MOS pipe electric connection, light module 40 and MOS pipe electric connection, the singlechip can be through the conduction degree that outputs the PWM signal of different duty cycle to control the luminance of light module 40.

The type of the single chip microcomputer U2 can be SN8F570210S, a fifth pin Touch of the single chip microcomputer U2 is connected with a grid G pole of a Q2 tube in the MOS tube, and a sixth pin Front of the single chip microcomputer U2 is connected with a grid G pole of a Q1 tube in the MOS tube. The G poles of the Q1 tube and the Q2 tube are respectively connected with the single chip microcomputer U2 through current-limiting resistors R17 and R20, and the current of the G poles can be limited to protect the Q1 tube and the Q2 tube. The source S pole of the Q1 tube and the source S pole of the Q2 tube are grounded.

In another embodiment, the input module 10 may be a button SW1, and the thirteenth pin KEY of the single chip microcomputer U2 is connected to the positive electrode of the button SW 1. The user input instruction can be transmitted to the single chip microcomputer U2, and then the single chip microcomputer U2 can control the light module 40 correspondingly according to the instruction.

Referring to fig. 3 and 4, in another embodiment, the light module 40 includes a main light source, a secondary light source and a power display lamp. The primary light source may be a combination of a plurality of LED lamps and the secondary light source may be a single LED lamp. The electric quantity display lamp is electrically connected with the single chip microcomputer U2, the electric quantity display lamp can be composed of 4 LED lamps, and the 4 LED lamps are respectively connected with an eighth pin LED4, a ninth pin LED3, a tenth pin LED2 and an eleventh pin LED1 of the single chip microcomputer U2.

The main light source and the secondary light source are connected with different MOS tubes in a distributed mode, the main light source is connected with a Q1 tube, the secondary light source is connected with a Q2 tube, and the conduction degree of the MOS tubes is controlled through a single chip microcomputer U2 so that the lamp brightness of the light module 40 can be adjusted. The drain D pole of the Q1 tube is connected with the cathode of the primary light source, and the drain D pole of the Q2 tube is connected with the cathode of the secondary light source. A parallel resistor R13, R14 and R15 are connected between the main light source and the Q1 tube, and the main light source is protected. A parallel resistor R18 and a parallel resistor R19 are connected between the secondary light source and the Q2, and the function of protecting the secondary light source is achieved.

When the single chip microcomputer U2 turns off the PWM signal, the duty ratio of PWM is zero, and the Q1 tube and the Q2 tube are not conducted and belong to a cut-off state. When the single chip microcomputer U2 detects that the key SW1 is pressed down, the light is turned on according to the instruction of the corresponding key 3. For example; when the key 3 is pressed, the Q1 tube is turned on, and when the key 3 is pressed, the timer is turned on, the timer is spaced for a certain time, the duty ratio of the PWM is gradually increased from 0, and at the moment, the Q1 is gradually turned on. But the impedance will still be large and the Q1 tube will have a small current through it, the LED lamp on the primary light source will have a small current through it, and the primary light source will be illuminated. Because the timer works all the time, the duty ratio of the PWM is increased all the time, the impedance of the Q1 tube is gradually decreased, the current flowing through the Q1 tube is gradually increased, the LED lamp on the main light source is gradually lightened until the duty ratio of the PWM becomes 100%, the Q1 tube is completely turned on, and the LED lamp on the main light source reaches the maximum brightness. After the duty ratio of the PWM is increased to 100%, the single chip microcomputer U2 will turn off the timer at this time, and the process of gradually turning on the light is completed at this time.

The button 3WS1 is switched on by pressing the Q2 tube, switched on by pressing the second lower Q1 tube, and switched off by pressing the third lower Q1 tube and the Q2 tube. However, the present embodiment is not limited to this, and the control mode of the replacement key SW1 may be performed according to actual circumstances. For example: the key SW1 can be in the form of a combination of keys 3, such as pressing the tube Q1 to conduct, pressing the tube Q2 to conduct, pressing the tube Q1 and 2 to cut off.

Referring to fig. 2 and 5, in another embodiment, the power module 30 includes a power management chip U1, a USB, and a power supply. The power supply can be a lithium battery, the power management chip U1 can be AP5056, and the first pin of the USB is connected to the fourth pin VIN and the eighth pin CE of the power management chip U1. A fourth pin VIN of the power management chip U1 is an input voltage positive input terminal, and provides a charging power; the eighth pin CE of the power management chip U1 enables the AP5056 to be in a normal operating state when the input terminal is at a high input level and enables the AP5056 to be in a charge disabled state when the input terminal is at a low input level. The fifth pin BAT of the power management chip U1 is connected with the positive electrode of the lithium battery, and the fifth pin of the USB is connected with the negative electrode of the lithium battery. The two ends of the lithium battery are connected with the capacitor C2 in parallel, so that voltage sudden change can be smoothed, high-frequency noise can be filtered, and the effect of protecting the lithium battery is achieved.

A resistor R21 is connected between a fourth pin VIN of the power management chip U1 and a seventh pin Fvin of the single chip microcomputer U2, when a charger is plugged in a USB, the voltage value of the fourth pin VIN of the power management chip U1 is the charger voltage after the current is limited by the current-limiting resistor R1, the voltage value of the seventh pin Fvin of the single chip microcomputer U2 is the divided voltage of the R21 and the R22, and when the single chip microcomputer detects that the seventh pin Fvin of the single chip microcomputer U2 has voltage, the lithium battery is judged to be charged at the moment, the display charging is started, and the electric quantity display lamp displays the electric quantity of the lithium battery at the moment.

The seventh pin CHARG of the power management chip U1 is connected with the second pin CHR of the singlechip U2, and can detect whether the lithium battery is full of or not, control the charging current of the lithium battery, limit the charging voltage of the lithium battery and play a role in protecting the lithium battery. When the lithium battery is charged, the seventh pin CHARG of the power management chip U1 always outputs low level, the singlechip U2 detects that the seventh pin CHARG of the power management chip U1 is low level, the lithium battery is not fully charged, and the electric quantity display lamp displays the electric quantity of the lithium battery at the moment; when charging, the seventh pin CHARG of the power management chip U1 outputs high level, and at the moment, the single chip microcomputer U2 can judge that the lithium battery is full of electricity, and the electricity quantity display lamp can display that the lithium battery is full of electricity, namely, 4 LED lamps of the electricity quantity display lamp are fully lighted.

Referring to fig. 6, fig. 6 is a representative handheld light device capable of embodying principles of the present invention, including any of the above-described handheld light systems, and a body on which the light module 40 is disposed, the control module 20 being disposed in an interior cavity of the body.

The main body can be a cylinder, the head of the main body is provided with a main light source and a secondary light source, the main light source comprises a plurality of LED lamps, the secondary light source can be a single LED lamp, and the main light source LED lamp 1 can be annular or linear; the secondary light source LED lamp 2 may be arranged in the center of the annular primary light source.

The afterbody of main part is provided with USB and charges mouthful 4, and USB charges mouthful 4 and is connected with the lithium cell in the inner chamber of main part, can charge the lithium cell.

The middle part of main part is provided with handheld portion 5, and the diameter of handheld portion 5 can be that the head of main part and the diameter of the afterbody of main part are little, can make things convenient for holding of hand, and button 3 can set up and be close to head one end in handheld portion 5, can easily press button 3 when making things convenient for the hand to hold the main part.

Although in the above embodiments the body is a cylinder. The utility model is not limited thereto: for example, the main body is a cylindrical body, and the shape of the main body can be replaced by a conical shape, a trapezoid cylindrical shape, a square body and the like according to the requirements of different application scenarios.

The principle of a hand-held lamp device of the present embodiment is as follows:

when the key 3 is pressed, the singlechip U2 receives a secondary light source lighting instruction signal, and because the secondary light source only has one LED lamp, the time interval determined by the timer can be a little shorter, so that the Q2 tube is controlled by the PWM signal to be conducted a little faster, and the secondary light source LED lamp 2 lights. When the key 3 is pressed down, the single chip microcomputer receives a main light source lighting instruction signal, the Q1 tube is controlled to be conducted through the timer and the PWM signal, the brightness of the main light source LED lamp 1 gradually becomes bright until the duty ratio of PWM is 100%, and the brightness of the main light source LED lamp reaches the maximum. And when the key 3 presses the third button, the singlechip U2 turns off the timer, no signal is output by the PWM, the duty ratio of the PWM is zero, the tube Q1 and the tube Q2 are not switched on and are in a cut-off state, and the LED lamps on the main light source and the secondary light source are both turned off.

Of course, once the above description of representative embodiments is considered in great detail, those skilled in the art will readily appreciate that many modifications, additions, substitutions, deletions, and other changes may be made to these specific embodiments, and such changes are within the scope of the principles of the present invention. Therefore, the foregoing detailed description is to be clearly understood as being given by way of illustration and example only, the spirit and scope of the present invention being limited solely by the appended claims and their equivalents.

Claims

1. The utility model provides a handheld lamp system, its characterized in that includes control module and light module, control module includes singlechip and MOS pipe, the singlechip with MOS pipe electric connection, the light module with MOS pipe electric connection, the singlechip can be through exporting the conduction degree that different duty ratio's PWM signal controlled the MOS pipe, with control the luminance of light module.

2. The portable lamp system of claim 1, wherein said lamp module comprises a primary light source and a secondary light source, said primary light source and said secondary light source are respectively connected to different said MOS transistors.

3. The handheld lamp system as claimed in claim 2, wherein the MOS transistors include a Q1 transistor and a Q2 transistor, a source of the Q1 transistor and a source of the Q2 transistor are grounded, and a drain of the Q1 transistor and a drain of the Q2 transistor are electrically connected to a negative electrode of the primary light source and a negative electrode of the secondary light source, respectively.

4. The portable lamp system as claimed in claim 1, wherein the control module further comprises a plurality of current limiting resistors, and one or more of the current limiting resistors are connected to the drain and the gate of the MOS transistor respectively.

5. The handheld lamp system as claimed in claim 1, further comprising a power management chip, wherein a seventh pin of the power management chip is connected to the single chip.

6. The handheld lamp system of claim 5 further comprising a plurality of power indicator lights, said power indicator lights being connected to said single chip microcomputer.

7. The handheld lamp system as defined in claim 5, further comprising a USB interface, the USB interface being connected to the power management chip and a power supply of the handheld lamp system.

8. The portable lamp system of claim 1, further comprising a power supply and a capacitor in parallel with said power supply to protect said power supply.

9. The handheld lamp system of claim 1, further comprising an input module coupled to the single chip, the input module capable of controlling the light module to turn on, turn off, and turn on.

10. A hand held light device comprising the hand held light system of any of claims 1-9 and a body on which the light module is disposed, the control module being disposed in an interior cavity of the body.