CN214479784U

CN214479784U - Rechargeable LED explosion-proof azimuth lamp system

Info

Publication number: CN214479784U
Application number: CN202120899961.6U
Authority: CN
Inventors: 文新国; 王海; 王科新
Original assignee: Shaanxi Star Explosion Safety Polytron Technologies Inc
Current assignee: Shaanxi Star Explosion Safety Polytron Technologies Inc
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-10-22
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a chargeable LED explosion-proof azimuth lamp system, which comprises a singlechip and a charging management chip, wherein the singlechip is electrically connected with a power supply and the charging management chip respectively; the charging management chip is electrically connected with the nickel-metal hydride battery BT1 through a charging interface and is used for charging management of the nickel-metal hydride battery BT 1; the single chip microcomputer is connected with a key circuit and an LED light source group, the key circuit is used for circularly controlling different output key values, and the LED light source group is driven by the single chip microcomputer to flash in a corresponding mode. The utility model discloses the system is by STC8G singlechip intelligent control, charges to nickel-hydrogen battery through charge management chip, and key circuit cyclic control output key-value, the flashing of corresponding mode is realized to final drive LED light source group.

Description

Rechargeable LED explosion-proof azimuth lamp system

Technical Field

The utility model belongs to the technical field of safety equipment for the colliery, concretely relates to explosion-proof position lamp system of chargeable formula LED.

Background

The position lamp is the need of warning signs in various special dangerous places of enterprises in metallurgy, railway, electric industry, public security, oil field, petrochemical industry and the like, is used as a warning sign in various special places, and is also suitable for municipal administration, construction operation, monitoring, rescue and emergency rescue workers to perform signal communication and position indication.

Because the coal mine underground environment is special and complicated, and the LED explosion-proof azimuth lamp can effectively prevent electric arcs, sparks and high temperature possibly generated in the lamp from igniting combustible gas and dust in the surrounding environment, thereby achieving the explosion-proof requirement, therefore, the LED explosion-proof azimuth lamp is widely applied to the coal mine underground, but most of LED explosion-proof azimuth lamp circuits in the prior art use dry batteries for power supply, need to be frequently replaced after being used, and the battery is frequently disassembled and replaced, so that the explosion-proof and waterproof performance is poor, and the use safety is influenced.

In view of the above, the present invention provides a rechargeable LED explosion-proof azimuth lamp system to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide an explosion-proof position lamp system of chargeable formula LED, this position lamp system is by STC8G singlechip intelligent control, carries out intelligent charging to the battery through the control chip that charges, and key-press circuit circulation control output key-value, final drive LED light source group realizes twinkling according to the regulation mode.

The utility model aims at solving through the following technical scheme:

a rechargeable LED explosion-proof azimuth lamp system comprises a single chip microcomputer and a charging management chip, wherein the single chip microcomputer is electrically connected with a power supply and the charging management chip respectively;

the charging management chip is electrically connected with the nickel-metal hydride battery BT1 through a charging interface and is used for charging management of the nickel-metal hydride battery BT 1;

the single chip microcomputer is connected with a key circuit and an LED light source group, the key circuit is used for circularly controlling different output key values, and the LED light source group is driven by the single chip microcomputer to flash in a corresponding mode.

Further, the single chip microcomputer is STC8G1K08A in model number; k1 in the key circuit is a touch switch, one end of the touch switch is grounded, and the other end of the touch switch is connected with a pin P32 of the singlechip 7;

the P32 is normally high level, after the touch switch key is pressed down, the P32 level is changed into low level, the key is known to be pressed down once by judging the change of the high level and the low level, the counting is carried out, three display states of the LED light source group are correspondingly controlled by the single chip microcomputer, the LED light source group returns to zero after counting for three times, and the LED light source group is displayed circularly.

Furthermore, the pin 8 of the single chip microcomputer is connected with a transistor Q1, and the transistor Q1 is a PNP type transistor.

Furthermore, a plurality of parallel LED light source groups are connected to a collector line of the transistor Q1.

Further, the LED light source group comprises 5 light emitting diodes D6, D7, D8, D9 and D10.

Furthermore, the charging management chip is connected with a charging indication module, and the charging indication module comprises a full charge indication and a positive charge indication.

Further, the model number adopted by the charging management chip is MH22Y 9;

the charging management chip comprises a charging management IC U1, a resistor R1, a resistor R2, a resistor R4, a resistor R5, a resistor R6, a thermistor RT1, a capacitor C1, a capacitor C2, a capacitor C3, a diode D4 and a light-emitting diode D5;

two connecting ends are led out from a pin 1 of the charging management IC U1, one connecting end is grounded through a resistor R2, the other connecting end is connected with a pin 4 through a resistor R1, two connecting ends are led out from a pin 2 of the U1, one connecting end is grounded through a capacitor C3, and the other connecting end is grounded through a resistor R6; pins 3 and 9 of U1 are grounded; the 4 feet of U1 are grounded through a capacitor C1, two connecting ends are led out from the 5 feet of U1, one connecting end is grounded through a capacitor C2, the other connecting end is connected with one end of a nickel-hydrogen battery BT1, the other end of the nickel-hydrogen battery BT1 is grounded, one grounded end of the nickel-hydrogen battery BT1 is connected with the 1 foot through a thermistor RT1, the 6 feet and the 7 feet of U1 are respectively connected with a diode D4 and a light-emitting diode D5 and then connected with a resistor R5 in series to be grounded, the 8 feet of U1 are led out to form two connecting ends, one connecting end is grounded through a resistor R3, and the other connecting end is connected with the 5 foot through a resistor R4.

Furthermore, an intrinsic safety module is connected to the charging management chip, and the intrinsic safety module includes three rectifier diodes D1, D2, D3, a fuse SI1 and a current-limiting resistor R7;

the three rectifier diodes D1, D2 and D3 are respectively connected in series with the 4 pins of the charging management IC U1, and the protective tube SI1 and the current limiting resistor R7 are connected in series with the 8 pins of the charging management IC U1.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model relates to an explosion-proof position lamp system of chargeable formula LED, this position lamp system carry out intelligent charging to MH22Y9 to the battery through the charge management chip by STC8G singlechip intelligent control, and key circuit cycle control output key value, the flashing of regulation mode is realized to final drive LED light source group.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a connection diagram of the rechargeable LED explosion-proof azimuth lamp system of the present invention;

FIG. 2 is a connection diagram of a charging management chip and peripheral circuits in the rechargeable LED explosion-proof position light system of the present invention;

FIG. 3 is a circuit connection diagram of a singlechip intelligent control LED lamp in the rechargeable LED explosion-proof azimuth lamp system of the utility model;

fig. 4 is the utility model discloses explosion-proof azimuth lamp system work flow chart of chargeable formula LED.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the following claims.

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and the embodiments.

Referring to fig. 1-3, the utility model relates to a chargeable formula LED explosion-proof azimuth lamp system, the system includes singlechip and charge management chip, singlechip and power supply and charge management chip electricity respectively connect; the charging management chip is electrically connected with the nickel-metal hydride battery BT1 through a charging interface and is used for charging management of the nickel-metal hydride battery BT 1; the single chip microcomputer is connected with a key circuit and an LED light source group, the key circuit is used for circularly controlling different output key values, and the LED light source group is driven by the single chip microcomputer to flash in a corresponding mode.

Specifically, as shown in fig. 2, the utility model discloses the model that the management chip that charges adopted is MH22Y9, and management chip and peripheral circuit that charge includes charge management IC U1, resistance R1, resistance R2, resistance R4, resistance R5, resistance R6, thermistor RT1, electric capacity C1, electric capacity C2, electric capacity C3, diode D4 and emitting diode D5. Two connecting ends are led out from a pin 1 of the charging management IC U1, one connecting end is grounded through a resistor R2, the other connecting end is connected with a pin 4 through a resistor R1, two connecting ends are led out from a pin 2 of the U1, one connecting end is grounded through a capacitor C3, and the other connecting end is grounded through a resistor R6; pins 3 and 9 of U1 are grounded; the 4 feet of U1 are grounded through a capacitor C1, two connecting ends are led out from the 5 feet of U1, one connecting end is grounded through a capacitor C2, the other connecting end is connected with one end of a nickel-hydrogen battery BT1, the other end of the nickel-hydrogen battery BT1 is grounded, one grounded end of the nickel-hydrogen battery BT1 is connected with the 1 foot through a thermistor RT1, the 6 feet and the 7 feet of U1 are respectively connected with a diode D4 and a light-emitting diode D5 and then connected with a resistor R5 in series to be grounded, the 8 feet of U1 are led out to form two connecting ends, one connecting end is grounded through a resistor R3, and the other connecting end is connected with the 5 foot through a resistor R4.

According to the circuit connection relation, the charging management chip MH22Y9 charges the nickel-hydrogen battery BT1, the charging current is regulated through R6, the charging cut-off voltage is regulated through R3 and R4, the battery temperature is protected from being too low and too high through R1, R2 and RT1, and the charging indication module is controlled through 6 and 7 pins of MH22Y9 and used for displaying a full indication and a positive charging indication.

In the constant current mode, the formula for calculating the charging current is: ICH 1000V/R6. Where ICH represents the charging current in amperes and R6 represents the resistance of the ISET pin to ground in ohms. For example, if a 500 milliamp charging current is desired, it can be calculated as follows: riser 1000V/0.5A 2K Ω; the output voltage can be set by means of an external resistor, which takes into account the accuracy requirements with a 1% accuracy. The charge cutoff voltage VBAT can be calculated as: VBAT VFB × (1+ R4/R3); in order to prevent damage to the nickel-metal hydride battery pack caused by too high or too low battery temperature, a battery temperature monitoring circuit is integrated inside MH22Y 9. The temperature monitoring of the nickel-hydrogen battery pack is realized by measuring the voltage of a TEMP pin, and the voltage of the TEMP pin is realized by an NTC thermistor in a battery and a resistance voltage division network.

Preferably, in order to ensure normal charging, the utility model discloses still be connected with the intrinsic safety insurance module on charging management chip, the intrinsic safety insurance module includes three rectifier diodes D1, D2, D3 and protective tube SI1 and current-limiting resistor R7; the three rectifier diodes D1, D2 and D3 are respectively connected in series with the 4 pins of the charging management IC U1, and the protective tube SI1 and the current limiting resistor R7 are connected in series with the 8 pins of the charging management IC U1.

As shown in fig. 3 and 4, the single chip microcomputer of the present invention has the model of STC8G1K 08A; k1 in the key circuit is a touch switch, one end of the touch switch is grounded, and the other end of the touch switch is connected with a pin P32 of the singlechip 7; the P32 is normally high level, after the touch switch key is pressed, the P32 level is changed into low level, the key is known to be pressed once by judging the change of the high level and the low level, the counting is carried out, and the LED light source group is correspondingly controlled to be in three display states by the single chip microcomputer, namely, when the key value is 1, the LED light source group is turned on for 500 milliseconds and turned off for 500 milliseconds; when the key value is 2, the LED light source group is turned on for 250 milliseconds and turned off for 750 milliseconds; when the key value is 3, the LED light source group is normally on. And after counting for three times, the counting returns to zero, and the LED light source group circularly displays. Namely, the single chip microcomputer carries out conversion of 4 states by judging key values, and when the battery voltage is lower than a set threshold value, the undervoltage indicator lamp reminds.

The 8 pins of the single chip microcomputer are connected with a transistor Q1, the transistor Q1 is a PNP type transistor, a plurality of LED light source groups connected in parallel are connected to a circuit of a collector electrode of the transistor Q1, the preferable LED light source groups are 5 light emitting diodes D6, D7, D8, D9 and D10, the transistor Q1 is controlled through the single chip microcomputer, and the 5 light emitting diodes are turned off or turned on to emit light intermittently, normally or according to requirements.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.

It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A rechargeable LED explosion-proof azimuth lamp system is characterized by comprising a single chip microcomputer and a charging management chip, wherein the single chip microcomputer is electrically connected with a power supply and the charging management chip respectively;

2. The rechargeable LED explosion-proof azimuth lamp system as claimed in claim 1, wherein the single chip microcomputer is of model STC8G1K 08A; k1 in the key circuit is a touch switch, one end of the touch switch is grounded, and the other end of the touch switch is connected with a pin P32 of the singlechip 7;

3. The rechargeable LED explosion-proof azimuth lamp system as claimed in claim 2, wherein a transistor Q1 is connected to the single chip microcomputer 8 pin, and the transistor Q1 is a PNP type transistor.

4. The rechargeable LED explosion-proof azimuth lamp system as claimed in claim 3, wherein a plurality of LED light source groups connected in parallel are connected to the collector line of the transistor Q1.

5. The rechargeable LED explosion-proof azimuth lamp system as claimed in claim 4, wherein the LED light source group comprises 5 light emitting diodes D6, D7, D8, D9 and D10.

6. The rechargeable LED explosion-proof azimuth lamp system as claimed in claim 1, wherein a charging indication module is connected to the charging management chip, and the charging indication module comprises a full charge indication and a positive charge indication.

7. The rechargeable LED explosion-proof azimuth lamp system as claimed in claim 1, wherein the model number adopted by the charging management chip is MH22Y 9;

the charging management chip and the peripheral circuit comprise a charging management IC U1, a resistor R1, a resistor R2, a resistor R4, a resistor R5, a resistor R6, a thermistor RT1, a capacitor C1, a capacitor C2, a capacitor C3, a diode D4 and a light-emitting diode D5;

8. The rechargeable LED explosion-proof azimuth lamp system as claimed in claim 7, wherein an intrinsic safety module is further connected to the charging management chip, and the intrinsic safety module comprises three rectifier diodes D1, D2 and D3, a safety tube SI1 and a current-limiting resistor R7;