CN219530923U

CN219530923U - Child lock control module for pulse igniter

Info

Publication number: CN219530923U
Application number: CN202320236011.4U
Authority: CN
Inventors: 王永彬
Original assignee: Dongguan Dinghuo Manufacturing Technology Co ltd
Current assignee: Dongguan Dinghuo Manufacturing Technology Co ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-08-15
Anticipated expiration: 2033-02-10

Abstract

The utility model discloses a child lock control module for a pulse igniter, which ensures child safety and low standby power consumption. The pulse igniter comprises a main switch and a child lock switch which are arranged on the pulse igniter shell, wherein the main switch and the child lock switch comprise a battery management module, a microprocessor and an electrode driving module, and when the main switch is still in an off state within 5-30 seconds after the child lock switch is opened, the microprocessor is disconnected from the battery management module. The utility model sets the child lock control module in the pulse igniter, combines the child lock switch adopting the elastic automatic reset switch with the main switch controlling the discharge of the discharge electrode, so that the pulse igniter can thoroughly solve the accident that the pulse igniter is ignited and burns children due to misoperation.

Description

Child lock control module for pulse igniter

Technical Field

The utility model relates to a pulse igniter, in particular to a pulse igniter with a child lock switch for ensuring child safety.

Background

The pulse igniter, for short, is an electronic product which utilizes the pulse principle to produce continuous instant electric spark so as to ignite the flame of gas appliance. The device is widely applied to middle-high-end gas appliance products and candles for lighting the candles placed in small-caliber blood or solid alcohol or aromatherapy candles placed in narrow cavities which are not easy to extend into by one hand, and is greatly convenient for customers to use.

In order to avoid the situation that when a child plays at home, a pulse igniter arranged at home is opened to cause the child to be burnt, a plurality of pulse igniters are added with child locks for the child to avoid the ignition of the pulse igniters due to misoperation in the market at present. However, most of the child locks are locks with mechanical structures, such as child locks with toggle or sliding structures, and the child locks are only added with a pulse igniter opening action, but the child locks still can not completely avoid misoperation of children, for example, children with great strength still can toggle or slide the child locks, or when a person operates the pulse igniter, the child locks are opened first, and after the child locks are used up, the child locks are forgotten to be locked, so that misoperation of children during playing is caused. Meanwhile, if the child lock is not reset, the child lock can leak electricity, so that the waste of partial electric quantity is caused.

Disclosure of Invention

The utility model aims to provide a child lock control module for a pulse igniter, which ensures child safety and low standby power consumption.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model relates to a child lock control module for a pulse igniter, which comprises a main switch and a child lock switch which are arranged on a shell of the pulse igniter, and is characterized in that: the battery management module, the microprocessor and the electrode driving module are further included, wherein:

the battery management module comprises a TYPE C charging interface, a management chip and a rechargeable battery;

a microprocessor which is in a wake-up standby state according to the connection of the child lock switch; according to the on or off of the main switch, a control signal for switching on or off the main switch is sent to the electrode driving module;

the electrode driving module drives the discharge electrode of the pulse igniter to be in an arc discharge state;

and when the main switch is still in an off state within 5-30 seconds of opening the child lock switch, the microprocessor is disconnected from the electric connection with the battery management module.

The battery management module consists of a first capacitor, a third resistor, a tenth resistor, an eleventh resistor and a management chip, wherein the first capacitor is connected between a USB charging pin of the management chip and the ground terminal in a bridging manner, and the third resistor is connected between a PRO pin of the management chip and the ground terminal; the battery pin of the management chip is connected with the positive electrode end of the rechargeable battery, the CHR pin of the management chip is connected with the USBC pin of the microprocessor, and the positive electrode of the rechargeable battery is connected with the VDD end of the microprocessor; the tenth resistor is connected between the charging interface and the 'USBT' pin of the microprocessor, and the eleventh resistor is connected between the 'USBT' pin of the microprocessor and the ground.

The electrode driving module consists of a second resistor, a fifth resistor, an MOS switch tube and a boost transformer, wherein one end of the second resistor is connected to the voltage output end of the microprocessor, and the other end of the second resistor is connected to the grid electrode of the MOS switch tube; one end of the fifth resistor is connected with the voltage output end of the microprocessor, and the other end of the fifth resistor is connected with the source electrode of the MOS switch tube; the drain electrode of the MOS switch tube is connected with the primary end of the step-up transformer, and the discharge electrode is connected with the secondary end of the step-up transformer.

The child lock switch is an automatic reset switch.

Four indicator lamps for displaying the four-gear electric energy allowance of the rechargeable battery are also arranged on the pulse igniter.

Compared with the prior art, the utility model has the advantages that the child lock control module is arranged in the pulse igniter, and the child lock switch adopting the elastic automatic reset switch is combined with the main switch controlling the discharge of the discharge electrode, so that the pulse igniter can thoroughly solve the accident that the pulse igniter is ignited and the child is burnt due to misoperation of the child.

Drawings

Fig. 1 is a schematic circuit diagram of a child lock control module according to the present utility model.

Fig. 2 is a block diagram of the circuit of fig. 1.

Detailed Description

As shown in fig. 1 and 2, the child lock control module for a pulse igniter of the present utility model is provided in the pulse igniter. When the pulse igniter is accidentally turned into a toy for children, the child lock control module can effectively ensure that the children cannot burn the igniter caused by disordered operation.

The child lock control module comprises a main switch, a child lock switch and a control circuit board, wherein the main switch and the child lock switch are arranged on the pulse igniter shell, and the control circuit board is arranged in the shell and comprises a battery management module, a microprocessor and an electrode driving module.

1. And a battery management module.

Is responsible for charging the rechargeable battery and providing the working voltage for the microprocessor. The charging system comprises a TYPE C charging interface, a management chip and a rechargeable battery.

The battery management module consists of a first capacitor C2, a third resistor R3, a tenth resistor R10, an eleventh resistor R11 and a management chip U3.

The first capacitor C2 is connected between the 'USB' charging pin of the management chip U3 and the ground terminal in a bridging manner, and the third resistor R3 is connected between the 'PRO' pin of the management chip U3 and the ground terminal;

the BATTERY pin of the management chip U3 is connected to the positive terminal of a rechargeable BATTERY (BATTERY), the CHR pin of the management chip U3 is connected to the USBC pin of the microprocessor U1, and the positive terminal of the rechargeable BATTERY is connected to the VDD terminal of the microprocessor U1; the tenth resistor R10 is connected between the charging interface TYPE C1 and the "USBT" pin of the microprocessor U1, and the eleventh resistor R11 is connected between the "USBT" pin of the microprocessor U1 and the ground.

The model of the management chip U3 is TP4054; the rechargeable battery uses a 3.7V volt lithium battery.

2. And the microprocessor adopts an MCU chip with the model number of PMS132B as a main chip of the module.

1) The microprocessor is in a wake-up standby state according to the connection of the child lock switch, and specifically comprises the following steps:

the 6 th pin of the microprocessor U1 is provided with a low-level trigger signal by short-pressing the child lock switch SW1, so that a wake-up system of the microprocessor U1 is started, at the moment, the microprocessor is in a standby state, and when the standby state is maintained within 5-30 seconds (preferably within 5-15 seconds), if the main switch SW2 is not pressed (i.e. opened), the microprocessor automatically enters a shutdown state, namely, the connection with the management chip U3 is automatically disconnected, and after the power is off, the power consumption of the microprocessor is zero (i.e. the battery management module cuts off the power supply to the microprocessor).

The child lock switch is an elastic automatic reset switch, namely after being pressed down, the child lock switch automatically rebounds and resets after a short time, and the child lock switch can prevent a user from forgetting to reset and generating unnecessary standby power consumption.

The child lock switch can also be combined with the main body structure to make a hidden design, so that family children can be prevented from being unable to operate when contacting the product, and the safety performance can be greatly improved.

2) The microprocessor sends a control signal for enabling the electrode driving module to be switched on or off according to the on or off of the main switch, and the control signal is specifically as follows:

after the child lock switch is pressed, the main switch SW2 is pressed within a preset time, so that the pin "OUT" of the microprocessor U1 outputs a low level to the gate of the MOS switch tube Q1 through the second resistor R2, and the drain and the source of the MOS switch tube Q1 are turned on.

3. And the electrode driving module drives the discharge electrode of the pulse igniter to be in an arc discharge state.

After the drain electrode and the source electrode of the MOS switch tube Q1 are conducted, a primary coil of a step-up transformer T3 connected between the output end of the rechargeable battery and the drain electrode of the MOS switch tube is electrified, so that a secondary electrode of the step-up transformer T3 outputs high voltage and drives a discharge electrode of the pulse igniter to output an electric arc.

The model of the MOS switch tube is CMD485.

The electrode driving module consists of a second resistor R2, a fifth resistor R5, a MOS switch tube Q1 and a step-up transformer T3.

One end of the second resistor R2 is connected to the voltage output end of the microprocessor U1, and the other end of the second resistor R2 is connected to the grid electrode of the MOS switch tube Q1; one end of the fifth resistor R5 is connected to the voltage output end of the microprocessor U1, and the other end of the fifth resistor R5 is connected to the source electrode of the MOS switch tube Q1; the drain electrode of the MOS switch tube Q1 is connected with the primary end of the step-up transformer T3, and the discharge electrode is connected with the secondary end of the step-up transformer T3.

4. LED indicator light

The four indicator lights respectively represent:

1) When the power-on machine is started, if four indicator lamps are lighted, the electric quantity value is 100%, three indicator lamps are lighted to indicate that the electric quantity value is 75%, two indicator lamps are lighted to indicate that the electric quantity value is 50%, and one indicator lamp is lighted to indicate that the electric quantity value is 25%.

2) When in charging, the number of the display lights of the indicator lights is from one to four, which respectively indicate that the electric quantity is 25%, 50%, 75% and 100%.

3) The power supply is turned on by pressing the SW1 key (pressing down), the power supply is turned on, the electric quantity display lamp is turned off by pressing the SW1 key (pressing down), and the power supply is turned off.

4) And triggering the SW2 ignition switch, and displaying the electric quantity indicator lamp as a horse race lamp state.

Claims

1. A child lock control module for pulse igniter, including main switch and child lock switch of installing on this pulse igniter casing, its characterized in that: the battery management module, the microprocessor and the electrode driving module are further included, wherein:

2. The child lock control module for a pulse initiator of claim 1, wherein: the battery management module consists of a first capacitor, a third resistor, a tenth resistor, an eleventh resistor and a management chip, wherein the first capacitor is connected between a USB charging pin of the management chip and the ground terminal in a bridging manner, and the third resistor is connected between a PRO pin of the management chip and the ground terminal; the battery pin of the management chip is connected with the positive electrode end of the rechargeable battery, the CHR pin of the management chip is connected with the USBC pin of the microprocessor, and the positive electrode of the rechargeable battery is connected with the VDD end of the microprocessor; the tenth resistor is connected between the charging interface and the 'USBT' pin of the microprocessor, and the eleventh resistor is connected between the 'USBT' pin of the microprocessor and the ground.

3. The child lock control module for use on a pulse initiator of claim 2, wherein: the electrode driving module consists of a second resistor, a fifth resistor, an MOS switch tube and a boost transformer, wherein one end of the second resistor is connected to the voltage output end of the microprocessor, and the other end of the second resistor is connected to the grid electrode of the MOS switch tube; one end of the fifth resistor is connected with the voltage output end of the microprocessor, and the other end of the fifth resistor is connected with the source electrode of the MOS switch tube; the drain electrode of the MOS switch tube is connected with the primary end of the step-up transformer, and the discharge electrode is connected with the secondary end of the step-up transformer.

4. A child lock control module for use on a pulse initiator as defined in claim 3, wherein: the child lock switch is an automatic reset switch.

5. The child lock control module for use on a pulse initiator of claim 4, wherein: four indicator lamps for displaying the four-gear electric energy allowance of the rechargeable battery are also arranged on the pulse igniter.

6. The child lock control module for use on a pulse initiator of claim 5, wherein: the model of the management chip is PMS132B; the model of the MOS switch tube is CMD482.