CN213754040U - Flashlight charging box circuit capable of identifying short circuit or 0V battery and flashlight charging box - Google Patents

Abstract

The utility model belongs to the lighting device field relates to a flashlight of distinguishable short circuit or 0V battery box circuit and flashlight of charging, including main circuit, singlechip U5, trigger circuit and pilot lamp control circuit, the main circuit with singlechip U5 is connected, trigger circuit with singlechip U5 is connected, pilot lamp control circuit with singlechip U5 is connected, trigger circuit includes hall sensor Q9, hall sensor Q9 with the U5 of singlechip is connected, still be connected with voltage stabilizing circuit on the trigger circuit, voltage stabilizing circuit includes: and the voltage stabilizing chip U7 is connected with the No. 1 pin VCC of the Hall sensor Q9 through the voltage stabilizing chip U7. The flashlight with the charging function has the advantages that when the battery in the flashlight is 0V or the positive and negative contact points of the flashlight are short-circuited, the flashlight charging box can prompt the battery or the positive and negative contact points of the flashlight to be abnormal, so that a user can know the using condition of the flashlight conveniently.

Description

Flashlight charging box circuit capable of identifying short circuit or 0V battery and flashlight charging box

Technical Field

The utility model belongs to the lighting device field relates to a flashlight charging box circuit and flashlight charging box of distinguishable short circuit or 0V battery.

Background

The flashlight is widely used in life, great convenience is provided for human life, most flashlights can be repeatedly charged and used, and when the electric quantity of the flashlights is used up, a data line is mostly connected with a USB interface on the flashlights, so that the flashlights are charged, and the flashlights can be repeatedly used; however, at present, a charging box special for charging the flashlight is not provided, and a 0V battery and a short circuit prompting function of the charging positive and negative contact points are not provided, so that when the battery in the flashlight is 0V or the charging positive and negative contact points of the flashlight are short-circuited, the battery or the charging positive and negative contact points of the flashlight cannot be prompted to be abnormal.

Disclosure of Invention

An object of the utility model is to prior art not enough, provide a flashlight of distinguishable short circuit or 0V battery and charge box circuit and flashlight, when the battery in the flashlight is 0V or the positive and negative contact point short circuit that the flashlight charges, the flashlight charges the box and can indicate battery or flashlight to charge positive and negative contact point and take place unusually to convenience of customers learns the behaviour in use of flashlight.

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

the utility model provides a flashlight of distinguishable short circuit or 0V battery charges box circuit and flashlight, includes main circuit, singlechip U5, trigger circuit and pilot lamp control circuit, the main circuit with singlechip U5 is connected, trigger circuit with singlechip U5 is connected, pilot lamp control circuit with singlechip U5 is connected.

Further, the trigger circuit comprises a Hall sensor Q9, and the Hall sensor Q9 is connected with the U5 of the single chip microcomputer.

Further, still be connected with voltage stabilizing circuit on the trigger circuit, voltage stabilizing circuit includes: and the voltage stabilizing chip U7 is connected with the No. 1 pin VCC of the Hall sensor Q9 through the voltage stabilizing chip U7.

Further, the indicator lamp control circuit includes: LED pilot lamp D2 and LED pilot lamp D5, LED pilot lamp D2 one end is connected with LED pilot lamp D5, the LED pilot lamp D2 other end and LED pilot lamp D2 other end all connect the singlechip.

Further, the main circuit includes: power management circuit and linear step-down circuit, power management circuit with linear step-down circuit connects, linear step-down circuit still includes: the linear buck chip U2, the model of linear buck chip U2 is HM5064, the power management circuit further includes: the power management chip U6, the model number of power management chip U6 is PB 0054A.

Further, the model of singlechip U5 is SC92F8003, No. 6 pin and the trigger circuit of singlechip U5 are connected, No. 5 pin and voltage stabilizing circuit of singlechip U5 are connected, No. 1 pin, No. 7 pin, No. 9 pin and No. 13 pin of singlechip U5 all with the main circuit is connected, No. 10 pin, No. 11 pin, No. 12 pin and No. 14 pin of singlechip U5 all with the pilot lamp control circuit connection.

Further, still be connected with first detection circuitry on the singlechip U5, first detection circuitry includes: the power management chip U6 is provided with a resistor R20 and a resistor R21, a No. 2 pin LED1 is sequentially connected with a resistor R20 and a resistor R21 in series and then grounded, and the connection point of the resistor R20 and the resistor R21 is connected to a No. 14 pin of the singlechip U5. .

Further, still be connected with second detection circuitry on the singlechip U5, second detection circuitry includes: the resistance R23 and structure probe IN _ CH, No. 18 pin connection structure probe IN _ CH of singlechip U5, structure probe IN _ CH other end and resistance R23 are connected, and No. 2 pin VO of steady voltage chip U7 is connected to the resistance R23 other end. .

Further, the LED indicator light D2 and the LED indicator light D5 are both red and green indicator lights.

The utility model also provides a flashlight box that charges, which comprises a circuit board, the flashlight of distinguishable short circuit charges box circuit has on the circuit board.

The utility model has the advantages that:

the utility model discloses an adopt a flashlight to charge the box and charge for the flashlight and replace the data line, make the mode that the flashlight charges more diversified, when the battery in the flashlight is 0V or when the positive negative contact short circuit of flashlight charging, the flashlight charges the box and can pass through LED pilot lamp D2 and LED pilot lamp D5's display state suggestion battery or flashlight positive negative contact that charges and take place unusually, thereby convenience of customers according to the use situation who learns the flashlight on the flashlight charging box, the condition that present flashlight can not suggest battery or flashlight positive negative contact that charges and take place unusually has been solved, make charging of flashlight more intelligent.

Drawings

Fig. 1 is a schematic connection diagram of the single chip microcomputer U5 and an indicator lamp control circuit;

FIG. 2 is a schematic diagram of the connection between the trigger circuit and the voltage regulator circuit;

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

fig. 4 is a schematic diagram of a first detection circuit of the present invention;

fig. 5 is a schematic diagram of a second detection circuit according to the present invention.

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 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. 1-5, a flashlight charging box circuit and a flashlight charging box capable of identifying a short circuit or a 0V battery comprises a main circuit, a single chip microcomputer U5, a trigger circuit and an indicator light control circuit, wherein the main circuit is connected with the single chip microcomputer U5, the trigger circuit is connected with the single chip microcomputer U5, and the indicator light control circuit is connected with the single chip microcomputer U5.

Referring to fig. 2, in the above embodiment, the trigger circuit includes a hall sensor Q9, the hall sensor Q9 is connected to the U5 of the single chip, the trigger circuit is further connected to a voltage stabilizing circuit, and the voltage stabilizing circuit includes: the voltage stabilizing chip U7 is characterized in that a pin VCC No. 1 of a Hall sensor Q9 is connected with a pin VO No. 2 of a voltage stabilizer U7, a pin 2 of the Hall sensor Q9 is connected with a pin 6 of a singlechip U5, a pin 3 of the Hall sensor Q9 is grounded, a pin 2 of the Hall sensor Q9 is further connected with a capacitor C12, the other end of the capacitor C12 is connected with a pin 3 of a Hall sensor Q9, a connecting point of the pin VCC No. 1 of the Hall sensor Q9 and the pin VO No. 2 of the voltage stabilizer U7 is further connected with a capacitor C11, and the other end of the capacitor C11 is grounded; the voltage stabilizing chip U7 is connected with pin 1 VCC of the Hall sensor Q9, pin 1 VSS of the voltage stabilizing chip U7 is grounded, pin 3 of the voltage stabilizing chip U7 is connected with the power input terminal IN _5V, the connection point of pin 3 of the voltage stabilizing chip U7 and the power input terminal IN _5V is connected with the BAT terminal of the power supply, a diode D3 is further connected between pin 3 of the voltage stabilizing chip U7 and the power input terminal IN _5V, the positive output terminal of the diode D3 is connected with IN _5V, the negative output terminal of the diode D3 is connected with pin 3 of the voltage stabilizing chip U7, a diode D4 is further connected between the connection point of pin 3 of the voltage stabilizing chip U7 and the power input terminal IN _5V and the BAT terminal of the power supply, the positive connection terminal of the diode D4 is connected with BAT, the negative connection point of the diode D4 and the connection point of pin 3 of the voltage stabilizing chip U48 are connected with the power input terminal BAT terminal IN, wherein the connection points RB 3 and RB 4 are both types 520, the positive connection end of the diode D4 is sequentially connected with resistors R9 and R10 in series and then grounded, and the connection point between the resistor R9 and the resistor R10 is connected with a 19-th pin of the singlechip U5, wherein the resistors R9 and R10 are both 1M ohm, in the embodiment, the Hall sensor Q9 is MT8631AT, and the regulator U7 is BL 8503-30.

Referring to fig. 1, in the above embodiment, the indicator light control circuit includes: an LED indicator light D2 and an LED indicator light D5, one end of an LED indicator light D2 is connected with an LED indicator light D5, the other end of the LED indicator light D2 and the other end of the LED indicator light D2 are both connected with a single chip microcomputer, in this embodiment, the LED indicator light D2 and the LED indicator light D5 are both red and green indicator lights, specifically, the LED indicator light D2 includes a first LEDR and a first LEDG, a pin 15 of the single chip microcomputer U5 is connected behind a negative electrode series resistor R13 of the first LEDR, a positive electrode of the first LEDR is connected with a positive electrode of the first LEDG, a pin 10 of the single chip microcomputer U5 is connected behind a negative electrode series resistor R12 of the first LEDG, the LED indicator light D5 includes a second LEDR and a second LEDG, a positive electrode of the second LEDR is connected with a positive electrode of the second LEDG, a negative electrode series resistor R7 of the second LEDR is connected with a pin 12 of the single chip microcomputer U5, a negative electrode series resistor R8 of the second LEDG is connected with a connection point, and the second LEDG is connected with a connection point of the second LEDG and the second LEDG is connected with a positive electrode of the second LEDR 3, the connection point of the positive electrode of the second LED R and the positive electrode of the second LED g is further connected to the connection point between pin VCC 1 of the hall sensor Q9 and pin VO 2 of the voltage regulator U7, wherein the resistances of the resistor R7 and the resistor R13 are both 1k ohm, the resistances of the resistor R8 and the resistor R12 are both 4.7k ohm, and the models of the LED indicator light D2 and the LED indicator light D5 are both LED _ 1608 RG.

Referring to fig. 3, in the above embodiment, the main circuit includes: power management circuit and linear step-down circuit, power management circuit and linear step-down circuit are connected, and in this embodiment, power management circuit includes: power management chip U6, power management chip U6's model is PB0054A, and is specific, and power management chip U6's No. 1 pin VIN is connected with power input end IN _5V, still is connected with first detection circuitry on the power management chip U6, and first detection circuitry is used for detecting whether outside charging device is connected with the flashlight box that charges, and is specific, and first detection circuitry includes: a resistor R20 and a resistor R21, a pin 2 LED1 of the power management chip U6 is sequentially connected with a resistor R20 and a resistor R21 in series and then grounded, the connection point of the resistor R20 and the resistor R21 is connected to a pin 14 of the singlechip U5, when an external charging device is connected with a circuit, the pin 2 of the power management chip U6 sends a waveform with a certain frequency, the singlechip U5 recognizes the waveform, the LED indicator lamp D5 is controlled by the pin 11 and the pin 12 of the singlechip U5 to display the charging state of the manual charging box, the manual charging box is charged with red and green, wherein the resistance value of the resistor R20 is 360K ohm, the resistance value of the resistor R21 is 470K ohm, the pin 3 LED2 of the power management chip U6 is connected with the anode of the diode D4 after being connected with the pin R16 in series, wherein the resistance value of the resistor R16 is 1K ohm, the pin 5 of the power management chip U6 is connected with a KEY of the singlechip U5, and the anode pin of the power management chip U8653 is connected with the diode 6, a pin 7 SW of the power management chip U6 is connected IN series with an inductor L1 and then connected to a connection point of a pin 6 BAT of the power management chip U6 and an anode of a diode D4, wherein a value of the inductor L1 is 2.2UH, a pin 8 VOUT of the power management chip U6 is connected to a fet Q11 and then connected to a linear voltage reduction circuit, a capacitor C5 is further connected to a pin 8 VOUT of the power management chip U6, the other end of the capacitor C5 is grounded, a capacity of the capacitor C5 is 10UF, a pin 7 of the power management chip U6 is further connected to a capacitor C3, the other end of the capacitor C3 is grounded, a capacity of the capacitor C3 is 22UF, a pin 9 of the power management chip U6 is grounded, a pin 1 of the power management chip U6 and a power input terminal IN — 5V are further connected between a capacitor C2, a capacitor C1 and a TVS D1, the other end of the capacitor C1 is further connected IN series with a resistor R1, and a resistor R36 1 is connected IN parallel with the TVS 1, the capacitor C2 is connected in parallel to the two ends of the capacitor C1 and the resistor R1, wherein the capacitance of the capacitor C1 and the capacitance of the capacitor C2 are both 10UF, the model of the TVS tube D1 is PESD5.0, and the linear voltage-reducing circuit includes: the linear voltage reduction chip U2, the linear voltage reduction chip U2 is HM5064, a pin VIN No. 1 of the linear voltage reduction chip U2 is connected with a source electrode of a field effect tube Q11, a drain electrode of the field effect tube Q11 is connected with a pin VOUT No. 8 of a power management chip U6, a pole G of the field effect tube is further connected with a triode Q12, a collector electrode of the triode Q12 is connected with a field effect tube Q11, a collector electrode of the triode Q12 is connected with a pole G of the field effect tube, an emitter electrode of the triode Q12 is grounded, a base electrode of the triode Q12 is connected with a pin No. 7 of a singlechip U5, a resistor R22 is further connected to the field effect tube Q11, one end of the resistor R22 is connected with a pole G of the field effect tube Q11, the other end of the resistor R2 is connected with a drain electrode of the field effect tube Q11, a pin VGC No. 2 of the linear voltage reduction chip U9 is connected with a pin VGC 7 and then connected with a pin No. 1 of the linear voltage reduction chip U2, a source electrode of the field effect tube Q11 is further connected with a capacitor C6, wherein the pin 6868627, the capacity of a capacitor C6 is 10UF, the capacity of a capacitor C7 is 0.1UF, a pin NCHRG No. 3 of a linear voltage reduction chip U2 is connected with a pin No. 2 of a singlechip U5, a pin NSTDBY No. 4 of a linear voltage reduction chip U2 is connected with a pin No. 17 of a singlechip U5, a pin No. 10 of a linear voltage reduction chip U2 is sequentially connected with an inductor L2, a resistor R6 and a field effect tube Q13 in series and then connected to a magnetic suction interface CH + connection end, a pin No. 7 BAT of a linear voltage reduction chip U2 is connected to a connection point between a resistor R6 and a field effect tube Q13, a pin VX No. 8 of a linear voltage reduction chip U2 is connected to a connection point between an inductor L2 and a resistor R6, a pin No. 9 and pin No. 11 of a linear voltage reduction chip U2 are both grounded, a pin No. 1 and a pin No. 11 of the linear voltage reduction chip U2 are also connected with a capacitor C8 in parallel, wherein the capacity of a base UF 9 is 10UF, a base of a triode Q2G pole Q56 of the field effect tube Q828653 is connected with a triode No. 3Q 8413, the emitter of the triode Q14 is grounded, the collector of the triode Q14 is connected with the G pole of the field effect transistor Q13, the G pole of the field effect transistor Q13 is further connected with a resistor R24, the other end of the resistor R24 is connected with the drain of the field effect transistor Q13, the source of the field effect transistor Q13 is further connected with a resistor R25, the other end of the resistor R25 is connected with a triode Q15, the base of the triode Q15 is connected with the No. 9 pin of the singlechip U5, the emitter of the triode Q15 is connected with the emitter of the triode Q14, and the collector of the triode Q15 is connected with a resistor R25, wherein the models of the triodes Q12, Q14 and Q15 are all DTC143EE, the models of the field effect transistor Q11 and the field effect transistor Q13 are all A03401, the resistance of the resistor R24 is 100K ohms, and the resistance of the resistor R25 is 1K ohms.

In the above-mentioned embodiment, the model of singlechip U5 is SC92F8003, No. 6 pins and the trigger circuit of singlechip U5 are connected, No. 5 pins and the voltage stabilizing circuit of singlechip U5 are connected, No. 1 pin of singlechip U5, No. 7 pin, No. 9 pin and No. 13 pin all are connected with the main circuit, No. 10 pin of singlechip U5, No. 11 pin, No. 12 pin and No. 14 pin all are connected with pilot lamp control circuit, still be connected with second detection circuitry on the singlechip U5, a box circuit that charges is put into for detecting the flashlight, it is concrete, second detection circuitry includes: the resistance R23 and structure probe IN _ CH, No. 18 pin of singlechip U5 connects structure probe IN _ CH, the other end of structure probe IN _ CH is connected with resistance R23, the other end of resistance R23 connects No. 2 pin VO of steady voltage chip U7, wherein, R23 resistance is 1M ohm, structure probe IN _ CH is used for detecting whether the flashlight charging box is connected to the flashlight, the IN _ CH end of the second detection circuit is high level when no flashlight is available, when the flashlight is put into the charging box, the IN _ CH end of the second detection circuit is low level.

The working principle is as follows: no indicator light is displayed when the charging box cover is in a closed state; when the cover of the flashlight charging box is opened, the Hall switch Q9 detects that the cover is opened, a high level signal is sent to a No. 6 pin of the singlechip U5, after the singlechip U5 detects a high level, the battery voltage of the charging box is detected according to a resistor R9 and a resistor R10 divider resistor, and then a No. 14 pin of the singlechip U5 and a No. 15 pin of the singlechip U5 control an LED indicator lamp D5 to display the electric quantity state of the battery box; under the condition that no flashlight is put in, the No. 10 pin and the No. 15 pin of the single chip microcomputer U5 control the LED indicator lamp D2 to display green; when the flashlight is placed in the battery box, the pin 18 of the singlechip U5 detects that the flashlight is connected, the pin 18 of the singlechip U5 is turned from high level to low level, the singlechip U5 identifies the flashlight connection through the pin 18, the pin 15 of the singlechip U5 is controlled to output low level of 0.1S, the power management chip U6 is enabled, 5V output of boosting is started, then the pin 7 of the power management chip U6 outputs high level, the triode Q12 is conducted, the G pole of the field-effect tube Q11 obtains low level so as to be conducted, the pin 1 VIN of the linear voltage reduction chip U2 obtains 5V voltage, the pin 16 of the singlechip U5 outputs low level so that the pin 5 of the power management chip U6 obtains low level, the power management chip U6 starts normal operation, the pin 13 of the singlechip Q5 outputs high level, the triode Q14 is conducted, the G pole of the field-effect tube Q13 obtains low level so as to be conducted, the linear voltage reduction chip U2 detects the voltage state of the flashlight battery through a No. 7 pin BAT and a No. 8 pin VX, if the battery is not fully charged, a No. 3 pin of the linear voltage reduction chip U2 outputs a low level, a No. 4 pin of the linear voltage reduction chip U2 outputs a high level, a No. 2 pin and a No. 17 pin of the singlechip U5 detect signals of the 2 pins, and the LED indicator lamp D2 is controlled through a No. 10 pin and a No. 15 pin of the singlechip U5 to enable the LED indicator lamp D2 to display red, which indicates that the flashlight is being charged; when the flashlight is fully charged, the pin No. 3 of the linear voltage reduction chip U2 outputs a high level, the pin No. 4 of the linear voltage reduction chip U2 outputs a low level, the pin No. 2 and the pin No. 17 of the single chip microcomputer U5 detect the state, and the pin No. 10 and the pin No. 15 of the single chip microcomputer U5 control the LED indicator lamp D2 to enable the LED indicator lamp D2 to display green, which indicates that charging is completed; when the battery of access is 0V battery or a conductive object is connected to flashlight positive pole and flashlight 2 contact points of flashlight negative pole simultaneously, linear step-down chip U2's No. 7 pin BAT detects abnormal voltage this moment, No. 3 pin and No. 4 pin of control linear step-down chip U2 export the high level simultaneously, No. 2 pin and No. 16 pin of singlechip U5 detect this kind of state, No. 10 pin and No. 15 pin control LED pilot lamp D2's RLED of control singlechip U5 takes place 1HZ scintillation, suggestion flashlight is charged unusually.

In the above embodiment, the utility model also provides a flashlight box that charges, including the circuit board, have the flashlight of distinguishable short circuit on the circuit board and charge box circuit.

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 (10)

1. The utility model provides a flashlight of distinguishable short circuit or 0V battery charges box circuit and flashlight, its characterized in that includes main circuit, singlechip U5, trigger circuit and pilot lamp control circuit, the main circuit with singlechip U5 is connected, trigger circuit with singlechip U5 is connected, pilot lamp control circuit with singlechip U5 is connected.

2. The flashlight charging box circuit and flashlight charging box capable of identifying a short circuit or a 0V battery as claimed in claim 1, wherein the trigger circuit comprises a Hall sensor Q9, and the Hall sensor Q9 is connected with the U5 of the single chip microcomputer.

3. The flashlight charging box circuit and flashlight charging box of claim 2, wherein a voltage regulator circuit is further connected to the trigger circuit, and the voltage regulator circuit comprises: and the voltage stabilizing chip U7 is connected with the No. 1 pin VCC of the Hall sensor Q9 through the voltage stabilizing chip U7.

4. A flashlight charging box circuit and flashlight charging box of claim 3 wherein said indicator light control circuit includes: LED pilot lamp D2 and LED pilot lamp D5, LED pilot lamp D2 one end is connected with LED pilot lamp D5, the LED pilot lamp D2 other end and LED pilot lamp D2 other end all connect the singlechip.

5. A flashlight charging box circuit and flashlight charging box of claim 4, wherein said main circuit includes: power management circuit and linear step-down circuit, power management circuit with linear step-down circuit connects, linear step-down circuit still includes: the linear buck chip U2, the model of linear buck chip U2 is HM5064, the power management circuit further includes: the power management chip U6, the model number of power management chip U6 is PB 0054A.

6. The flashlight charging box circuit and flashlight charging box of claim 5, characterized in that the model of the single chip microcomputer U5 is SC92F8003, pin 6 of the single chip microcomputer U5 is connected with the trigger circuit, pin 5 of the single chip microcomputer U5 is connected with the voltage stabilizing circuit, pin 1, pin 7, pin 9 and pin 13 of the single chip microcomputer U5 are all connected with the main circuit, and pin 10, pin 11, pin 12 and pin 14 of the single chip microcomputer U5 are all connected with the indicator lamp control circuit.

7. The flashlight charging box circuit and flashlight charging box of claim 5, wherein a first detection circuit is further connected to the single chip microcomputer U5, and the first detection circuit comprises: the power management chip U6 is provided with a resistor R20 and a resistor R21, a No. 2 pin LED1 is sequentially connected with a resistor R20 and a resistor R21 in series and then grounded, and the connection point of the resistor R20 and the resistor R21 is connected to a No. 14 pin of the singlechip U5.

8. The flashlight charging box circuit and flashlight charging box of claim 5, wherein a second detection circuit is further connected to the single chip microcomputer U5, and the second detection circuit comprises: the resistance R23 and structure probe IN _ CH, No. 18 pin connection structure probe IN _ CH of singlechip U5, structure probe IN _ CH other end and resistance R23 are connected, and No. 2 pin VO of steady voltage chip U7 is connected to the resistance R23 other end.

9. The flashlight charging box circuit and flashlight charging box of claim 4 wherein LED indicator light D2 and LED indicator light D5 are both red and green color indicator lights.

10. A flashlight charging box comprising a circuit board, wherein the circuit board has a flashlight charging box circuit of any one of claims 1-9 capable of identifying a short circuit.

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