Touch switch type intrinsic safety type LED miner lamp

Abstract

The utility model relates to a light-emitting diode (LED) miner lamp and a driving circuit, in particular to a touch switch type intrinsic safety LED miner lamp, a lamp holder part is integrally connected with a battery box part, a light source reflection cup in the lamp holder part adopts an integrated lens, the integrated lens is small in size and good in condensation effect, and a miner lamp switch in the lamp holder part adopts a touch key. The number of accessories outside the shell is reduced, the situation that the protection effect becomes poor due to aging or loosening of key switch rubber is effectively prevented, and meanwhile the size of the miner lamp shell is reduced. The driving circuit is arranged on the lamp holder part and comprises a power supply circuit, a control circuit, a light source driving circuit and a touch key control circuit. According to the intrinsic safety type LED miner lamp, the integral design is adopted, the lamp holder and the battery box part are integrally designed, and the reflection cup adopts the lens with the small size, so that the miner lamp is small in overall size and convenient to carry; the touch keys are further adopted, so that the mining lamp is more compact in structure and better in waterproof and moisture-proof effects.

Description

Technical Field

[0001] The utility model relates to an LED miner's lamp and a driving circuit, in particular to a touch switch type intrinsically safe LED miner's lamp, which is applied to underground lighting in the mining industry. Background Art

[0002] At present, the intrinsically safe LED mining lamps used by workers in the coal mining industry mostly adopt a split design. The lamp head and the battery box are connected by cables, which are large in size and not very convenient to use. The reflective cup of the light source currently used in mining lamps is large in size, which makes the lamp head part of the mining lamp large in size and inconvenient to use. In addition, the switch adopts an adhesive button, which is not very waterproof and moisture-proof. Summary of the invention

[0003] The utility model provides a touch switch type intrinsically safe LED miner's lamp to solve the problems that the LED miner's lamp currently used in the coal mining industry is large in size and has poor waterproof and moisture-proof effects.

[0004] The utility model is realized by adopting the following technical scheme: a touch switch type intrinsically safe LED mining lamp, the lamp head part is integrally connected with the battery box part, the light source reflector cup in the lamp head part adopts an integrated lens, the integrated lens has a small volume and a good focusing effect, the mining lamp switch in the lamp head part adopts a touch button, the accessories outside the shell are reduced, and the protection effect is effectively prevented from being deteriorated due to aging or loosening of the key switch rubber, the protection level of the mining lamp is improved, and the volume of the mining lamp shell is reduced.

[0005] The above-mentioned touch switch type intrinsically safe LED mining lamp has a driving circuit arranged in the lamp head, including a power supply circuit, a control circuit, a light source driving circuit and a touch button control circuit;

[0006] The power supply circuit includes a positive input interface P1 and a negative input interface P2, the positive input interface P1 is connected to one end of the third capacitor C3 and the fifth capacitor C5, and is connected to one end of the sixth capacitor C6, the seventh capacitor C7 and the eighth capacitor C8 through the inductor L1 and then connected to the VCC terminal, the negative input interface P2 is connected to GND, and the other ends of the third capacitor C3, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7 and the eighth capacitor C8 are connected to GND; the positive input interface P1 and the negative input interface P2 in the power supply circuit are respectively connected to the positive electrode and the negative electrode of the battery in the battery box part;

[0007] The control circuit includes a single-chip microcomputer U2 of model SO7250 and an interface P4. Pin 1 of the single-chip microcomputer U2 is connected to GND, pin 2 is connected to pin 1 of the interface P4, pin 3 is connected to pin 3 of the interface P4, pin 4 is floating, pin 5 is connected to the G end of the MOS tube Q5 in the light source driving circuit, pin 6 is connected to pin 6 of the chip U3 in the touch key control circuit, pin 7 is floating, and pin 8 is connected to the VCC end; pin 2 of the interface P4 is connected to GND, and pin 4 is connected to the VCC end;

[0008] The light source driving circuit includes an N-channel MOS tube Q5 and a chip U1 of model QX7135. The S terminal of the MOS tube Q5 is connected to GND, the D terminal is connected to the 2nd pin of the chip U1, the 3rd pin of the chip U1 and the 1st pin of the interface J1 are connected to VCC, the 1st pin of the chip U1 is connected to the 2nd pin of the interface J1, one end of the first capacitor C1 is connected to VCC, and the other end is connected to GND. The light source driving circuit is connected to the LED lamp through the interface J1;

[0009] The touch key control circuit includes a chip U3 with model number A102C and a touch key K2. Pin 1 of the chip U3 is connected to GND, pin 2 is also connected to GND through the second capacitor C2, pin 3 is connected to the touch key K2 through the sixth resistor R6, the sixth resistor R6 is connected to GND through the capacitor CX1, pin 4 is connected to GND through the seventh resistor R7 and the capacitor CX2, pin 5 is connected to VCC through the fifth resistor R5, pin 6 is connected to VCC through the fourth resistor R4, pin 7 is suspended, pin 8 is connected to VCC through the third resistor R3, and pin 8 is also connected to GND through the fourth capacitor C4.

[0010] After the touch button K2 is touched, pin 6 of chip U3 outputs a signal to the single-chip microcomputer U2 in the control circuit, pin 5 of the single-chip microcomputer U2 outputs a high level, the MOS tube Q5 in the light source driving circuit is turned on, the power supply circuit of the LED lamp is connected, and the LED lamp is on. After the touch button K2 is touched again, pin 6 of chip U3 outputs a signal to the single-chip microcomputer U2 in the control circuit, pin 5 of the single-chip microcomputer U2 outputs a low level, the MOS tube Q5 in the light source driving circuit is turned off, the power supply circuit of the LED lamp is disconnected, and the LED lamp is off.

[0011] The intrinsically safe LED mining lamp of the utility model adopts an integrated design, the lamp head and the battery box adopt an integrated design, and the reflective cup adopts a smaller lens so that the overall size of the mining lamp is smaller and convenient to carry; the utility model also adopts a touch button, so that the structure of the mining lamp is more compact and the waterproof and moisture-proof effects are better. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the integrated LED mining lamp of the utility model.

[0013] Figure 2 This is the circuit diagram of the power supply circuit.

[0014] Figure 3 This is the circuit schematic diagram of the control circuit.

[0015] Figure 4 This is the circuit schematic diagram of the light source driving circuit.

[0016] Figure 5 This is the circuit schematic diagram of the touch button control circuit.

[0017] In the figure: 1-touch button, 2-integrated lens. DETAILED DESCRIPTION

[0018] The utility model adopts an integrated shell design, the lamp head part is connected with the battery box part in one piece, the light source reflector cup in the lamp head part adopts an integrated lens 2, the integrated lens 2 is small in size and has a good focusing effect, the miner's lamp switch in the lamp head part adopts a touch button 1, which reduces the accessories outside the shell, effectively prevents the protection effect from being deteriorated due to aging or loosening of the key switch rubber, improves the protection level of the miner's lamp, and reduces the volume of the miner's lamp shell. For details of the specific design of the miner's lamp, see Figure 1 .

[0019] The touch-type intrinsically safe LED mining lamp driving circuit involved in the utility model to realize the above-mentioned functions is described as follows: the entire driving circuit is mainly divided into 4 parts, namely: a power supply circuit composed of P1, P2, L1 and capacitors, a control circuit composed of U2 and P4, a light source driving circuit composed of U1, Q5 and J1, and a touch button control circuit composed of U3 and touch button K2; the driving circuit is arranged on the lamp head part.

[0020] The power supply circuit includes a positive input interface P1 and a negative input interface P2. The positive input interface P1 is connected to one end of the third capacitor C3 and the fifth capacitor C5, and is connected to one end of the sixth capacitor C6, the seventh capacitor C7 and the eighth capacitor C8 through the inductor L1 and then connected to the VCC terminal. The negative input interface P2 is connected to GND, and the other ends of the third capacitor C3, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7 and the eighth capacitor C8 are connected to GND. The positive input interface P1 and the negative input interface P2 in the power supply circuit are respectively connected to the positive and negative electrodes of the battery in the battery box part, see Figure 2 .

[0021] The control circuit includes a single-chip microcomputer U2 of model sc7250 and an interface P4. Pin 1 of the single-chip microcomputer U2 is connected to GND, pin 2 CLK is connected to pin 1 of the interface P4, pin 3 DIO is connected to pin 3 of the interface P4, pin 4 is floating, pin 5 is connected to the G end of the MOS tube Q5 in the light source drive circuit, pin 6 is connected to pin 6 of the chip U3 in the touch button control circuit, pin 7 is floating, and pin 8 is connected to the VCC end; pin 1 of the interface P4 is connected to pin 2 of the single-chip microcomputer U2, pin 2 is connected to GND, pin 3 is connected to pin 3 of the single-chip microcomputer U2, and pin 4 is connected to VCC. The interface P4 is a program burning interface. It is connected to an external computer through the interface P4 to burn the LED light control program in the single-chip microcomputer; see for details Figure 3 .

[0022] The light source driving circuit includes an N-channel MOS tube Q5 and a chip U1 of model QX7135. The S terminal of the MOS tube Q5 is connected to GND, the G terminal is connected to the 5th pin of the single-chip computer U2 in the control circuit, the D terminal is connected to the 2nd pin GND terminal of the chip U1, the 3rd pin of the chip U1 and the 1st pin of the interface J1 are connected to VCC, the 1st pin LED terminal of the chip U1 is connected to the 2nd pin of the interface J1, one end of the first capacitor C1 is connected to VCC, and the other end is connected to GND; the light source driving circuit is connected to the LED lamp through the interface J1, see Figure 4 .

[0023] The touch key control circuit includes a chip U3 of model AI02C and a touch key K2. Pin 1 of the chip U3 is connected to GND, and pin 2 is also connected to GND through the second capacitor C2. Pin 3 KEY1 is connected to the touch key K2 through the sixth resistor R6. The sixth resistor R6 is connected to GND through the capacitor CX1. Pin 4 is connected to GND through the seventh resistor R7 and the capacitor CX2. Pin 5 OUT2 is connected to VCC through the fifth resistor R5. Pin 6 OUT1 is connected to VCC through the fourth resistor R4. Pin 6 of the chip U3 is also connected to pin 6 of the microcontroller U2 in the control circuit. Pin 7 of the chip U3 is suspended. Pin 8 of the chip U3 is connected to VCC through the third resistor R3, and pin 8 is also connected to GND through the fourth capacitor C4. The sensitivity of the touch key K2 can be adjusted by the size of the sixth resistor R6 and the capacitor CX1; see Figure 5 .

Claims

1. A touch switch type intrinsically safe LED mining lamp, characterized in that: The lamp head part is integrally connected with the battery box part, the light source reflector cup in the lamp head part adopts an integrated lens (2), and the miner's lamp switch in the lamp head part adopts a touch button (1).

2. A touch switch type intrinsically safe LED mining lamp according to claim 1, characterized in that: The driving circuit includes a power supply circuit, a control circuit, a light source driving circuit and a touch button control circuit; The power supply circuit includes a positive input interface P1 and a negative input interface P2, the positive input interface P1 is connected to one end of the third capacitor C3 and the fifth capacitor C5, and is connected to one end of the sixth capacitor C6, the seventh capacitor C7 and the eighth capacitor C8 through the inductor L1 and then connected to the VCC terminal, the negative input interface P2 is connected to GND, and the other ends of the third capacitor C3, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7 and the eighth capacitor C8 are connected to GND; the positive input interface P1 and the negative input interface P2 in the power supply circuit are respectively connected to the positive electrode and the negative electrode of the battery in the battery box part; The control circuit includes a single-chip microcomputer U2 of model SO7250 and an interface P4. Pin 1 of the single-chip microcomputer U2 is connected to GND, pin 2 is connected to pin 1 of the interface P4, pin 3 is connected to pin 3 of the interface P4, pin 4 is floating, pin 5 is connected to the G end of the MOS tube Q5 in the light source driving circuit, pin 6 is connected to pin 6 of the chip U3 in the touch button control circuit, pin 7 is floating, and pin 8 is connected to the VCC end; Pin 2 of interface P4 is connected to GND, and pin 4 is connected to VCC; The light source driving circuit includes an N-channel MOS tube Q5 and a chip U1 of model QX7135. The S terminal of the MOS tube Q5 is connected to GND, the D terminal is connected to the 2nd pin of the chip U1, the 3rd pin of the chip U1 and the 1st pin of the interface J1 are connected to VCC, the 1st pin of the chip U1 is connected to the 2nd pin of the interface J1, one end of the first capacitor C1 is connected to VCC, and the other end is connected to GND. The light source driving circuit is connected to the LED lamp through the interface J1; The touch key control circuit includes a chip U3 with model number A102C and a touch key K2. Pin 1 of the chip U3 is connected to GND, pin 2 is also connected to GND through the second capacitor C2, pin 3 is connected to the touch key K2 through the sixth resistor R6, the sixth resistor R6 is connected to GND through the capacitor CX1, pin 4 is connected to GND through the seventh resistor R7 and the capacitor CX2, pin 5 is connected to VCC through the fifth resistor R5, pin 6 is connected to VCC through the fourth resistor R4, pin 7 is suspended, pin 8 is connected to VCC through the third resistor R3, and pin 8 is also connected to GND through the fourth capacitor C4.

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