A power-off protection circuit applied to an iron

Abstract

The utility model relates to a kind of power-off protection circuit applied to ironing machine, including main control module, main control module is connected with power module;Power module is equipped with protection circuit, protection circuit is connected in parallel in power input end;The input end of main control module is connected with dump switch, and the output end is connected with buzzer;If dump switch reverses, and reverse signal is transmitted to main control module, after main control module receives signal, control steam generator stops working;At the same time, main control module controls buzzer to issue alarm;The input end of main control module is connected with vibration sensor, and vibration sensor is used to monitor ironing machine vibration condition;When continuous vibration time reaches preset time threshold, main control module controls steam generator to stop working;At the same time, main control module controls buzzer to issue alarm.The utility model can realize the function of idle automatic power-off alarm and dump automatic power-off alarm, and can improve the use safety of product.

Description

Technical Field

[0001] This utility model relates to ironing machines, specifically a power-off protection circuit for ironing machines. Background Technology

[0002] Irons, as a widely used household appliance, are primarily used for smoothing clothing. Their working principle involves softening fibers by heating the soleplate or generating steam, thereby eliminating wrinkles. However, due to the high temperature of the iron's soleplate, certain safety hazards exist during use. For example, if the iron accidentally tipes over and continues to operate, the soleplate may come into contact with flammable materials, causing a fire; simultaneously, the iron may also cause burns to the user during the tipping process. Furthermore, most irons do not issue a warning when water is low, which can lead to dry burning. Dry burning causes the iron's outer casing to overheat abnormally, increasing the risk of burns, and in extreme cases, even causing the machine to smoke or catch fire.

[0003] In the prior art, some protection circuits have been disclosed. For example, CN217157108U discloses a protection circuit for preventing tipping and shaking of electrical appliances, and CN211553176U discloses a tipping warning device for testing irons. However, these technologies have not been specifically applied to electrical appliances such as irons, and their protection circuits are limited to the anti-tipping function and do not yet have an idle alarm function.

[0004] Therefore, those skilled in the art are dedicated to developing a protection circuit that can be used in ironing machines and has both idle power failure alarm and tilt power failure alarm functions. Utility Model Content

[0005] This invention provides an ironing machine with automatic power-off protection circuits for water shortage and automatic power-off alarm protection circuits for tipping over.

[0006] The present invention discloses a power failure protection circuit for an ironing machine, comprising a main control module connected to a power supply module; the power supply module is provided with a protection circuit connected in parallel to the power input terminal;

[0007] The main control module has a tilt switch connected to its input terminal and a buzzer connected to its output terminal. If the tilt switch reverses and transmits a reverse signal to the main control module, the main control module will control the steam generator to stop working upon receiving the signal. At the same time, the main control module will control the buzzer to sound an alarm.

[0008] The main control module is connected to a vibration sensor at its input terminal. The vibration sensor is used to monitor the vibration of the ironing machine. When the continuous vibration time reaches a preset time threshold, the main control module controls the steam generator to stop working. At the same time, the main control module controls the buzzer to sound an alarm.

[0009] To facilitate the display of the ironing machine's electronic data, a display module is connected to the output of the main control module for displaying data information.

[0010] Correspondingly, the display panel of the display module displays a water shortage alarm reminder.

[0011] To facilitate operator control of the iron, the input terminal of the main control module is also connected to buttons, which include an iron power switch button and a speed adjustment button. When the iron power switch button is pressed, the iron will turn on or off. When the speed adjustment button is pressed, the ironing speed can be adjusted, and the corresponding speed is displayed on the display panel of the monitor.

[0012] To facilitate operators' intuitive viewing of the iron's data, a temperature sensor is also connected to the input terminal of the main control module. The temperature sensor is used to detect the temperature of the iron and transmit the detection data back to the main control module in real time. The main control module transmits the temperature data to the display module and displays the specific temperature on the display panel.

[0013] The advantages of this utility model are:

[0014] 1. By connecting a protection circuit in parallel at the power input, the main control module controls the connection and disconnection of the protection circuit. When the iron tilts, the tilt switch reverses, and the main control module receives the signal from the tilt switch, controlling the connection of the protection circuit to achieve automatic power-off when tilted, and also controlling the start of the buzzer. This achieves automatic power-off protection and automatic alarm functions for the iron when tilted. The iron vibrates when idle. Therefore, a vibration sensor monitors the vibration of the iron and sends the vibration data back to the main control module, recording the duration of continuous vibration. When the duration reaches a preset threshold, the main control module controls the steam generator to stop working; simultaneously, the main control module controls the buzzer to sound an alarm, achieving automatic power-off protection after prolonged idle time.

[0015] 2. This utility model also has a water shortage alarm function. By setting a water level sensor, the water level of the ironing machine is detected. When the water level is too low, a signal is sent to the main control module. The main control module starts the buzzer to sound an alarm and displays the alarm on the display motherboard.

[0016] 3. This utility model also has the function of real-time temperature detection, and the specific temperature can be displayed through the display motherboard. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a block diagram of the modules of this utility model;

[0019] Figure 2 This is the internal circuit diagram of the power supply module in this utility model;

[0020] Figure 3 This is a port connection diagram of the main control module in this utility model;

[0021] Figure 4 This is a circuit diagram of the tilt switch and vibration sensor in this utility model;

[0022] Figure 5 This is the circuit diagram of the buzzer in this utility model;

[0023] Figure 6 This is a circuit diagram of the display module in this utility model;

[0024] Figure 7 This is a circuit diagram of the temperature and humidity sensors in this utility model;

[0025] Figure 8 This is the circuit diagram of the water level sensor in this utility model;

[0026] Figure 9 This is the internal circuit diagram of the steam generator in this utility model; Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] like Figures 1 to 8 As shown, a power failure protection circuit for an ironing machine includes a main control module U3, which is connected to a power supply module. The power supply module is equipped with a protection circuit connected in parallel to the power input terminal. Specifically, the main control module supplies power to U3 through VCC and GND, and provides IIC / SCL and IIC / SDA communication interfaces, which are connected to the programming port.

[0030] The input terminal of the main control module U3 is connected to a tilt switch S1. Specifically, the tilt switch S1 is connected in series with resistor R13 and then connected to pin 19 of the main control module U3. A buzzer (BUAAER) is connected to pin 6 of the main control module U3's output terminal. If the tilt switch S1 reverses direction and transmits the reverse signal to the main control module U3, the main control module U3, upon receiving the signal, controls the steam generator to stop working. Simultaneously, the main control module U3 controls the buzzer (BUAAER) to sound an alarm. When the iron tipps over, the tilt switch reverses the connection, automatically cutting off the power to prevent safety hazards caused by the iron tipping over and improving the safety of using the iron.

[0031] A vibration sensor S2 is connected to pin 15 of the main control module U3's input terminal. The vibration sensor S2 monitors the iron's vibration. When the continuous vibration time reaches a preset time threshold (5 minutes in this embodiment), the main control module U3 will control the steam generator to stop working after 5 minutes of continuous vibration. Simultaneously, the main control module U3 will control the buzzer BUAAER to sound an alarm, thus automatically powering off the iron when it has been idle for 5 minutes, improving safety.

[0032] In some embodiments, the output terminal of the main control module U3 is connected to a display module. Specifically, the display module is connected to pins 10, 11, and 13 of the main control module U3. Pin 10 is used for the display module to transmit data signals with the main control module. The main function of the display module is to display data information.

[0033] In some embodiments, a water level sensor is also connected to the input terminal of the main control module U3. Specifically, the water level sensor is connected to pin 5 of the main control module U3. The water level sensor is used to detect the water level in the iron's water tank. When the water level in the tank is lower than the water level sensing end of the water level sensor, the water level sensor transmits a water shortage signal to the main control module U3. The main control module U3 then controls the steam generator to stop working; simultaneously, the main control module U3 controls the buzzer to sound an alarm. Correspondingly, the display panel of the display module displays a water shortage alarm reminder. This improves the convenience of use, as the iron can automatically alarm and remind users when the water level is too low, avoiding the need to constantly monitor the water level while using the iron.

[0034] In some embodiments, the input terminal of the main control module U3 is also connected to buttons, which are divided into an ironing machine power switch button and a speed adjustment button. When the ironing machine power switch button is pressed, the ironing machine will turn on or off. When the speed adjustment button is pressed, the ironing speed of the ironing machine can be adjusted, and the corresponding speed is displayed on the display panel. Using buttons as a human-computer interaction tool can greatly improve the convenience of use. In this embodiment, the buttons include K1, K2, and K3. The K1 button is connected in series with a resistor R14 and connected to pin 9 of the main control module U3. The K2 button is connected in series with a resistor R15 and connected to pin 8 of the main control module U3. The K3 button is connected in series with a resistor R16 and connected to pin 9 of the main control module U3. Specifically, the K1 button is the button to increase the ironing speed, the K2 button is the main power switch button for the ironing machine, and the K3 button is the button to decrease the ironing speed.

[0035] In some embodiments, the input terminal of the main control module U3 is also connected to a temperature and a temperature sensor TEMP. In this embodiment, the temperature and humidity sensor TEMP is connected to pin 14 of the main control module U3. The temperature and humidity sensor TEMP are used to detect the temperature of the iron and transmit the detection data back to the main control module U3 in real time. Specifically, the temperature sensor TEMP is connected to the main control module U3. The main control module transmits the temperature data to the display module and displays the specific temperature on the display panel.

[0036] In some embodiments, the power module is equipped with a protection circuit connected in parallel to the power input terminal. When a load occurs during use, the protection circuit is automatically activated, and the entire machine is powered off, thus protecting the ironing machine.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A power failure protection circuit for an ironing machine, comprising a main control module, characterized in that: The main control module is connected to the power supply module; The main control module has a tilt switch connected to its input terminal and a buzzer and a steam generator connected to its output terminal. If the tilt switch reverses and transmits a reverse signal to the main control module, the main control module will control the steam generator to stop working after receiving the signal. At the same time, the main control module will control the buzzer to sound an alarm. The main control module is connected to a vibration sensor at its input terminal. The vibration sensor is used to monitor the vibration of the ironing machine. When the continuous vibration time reaches a preset time threshold, the main control module controls the steam generator to stop working. At the same time, the main control module controls the buzzer to sound an alarm.

2. The power failure protection circuit for an ironing machine according to claim 1, characterized in that: The output of the main control module is connected to a display module for displaying data information.

3. The power failure protection circuit for an ironing machine according to claim 2, characterized in that: The main control module is also connected to buttons, which are an ironing machine power switch and a speed adjustment button. When the ironing machine power switch is pressed, the ironing machine will turn on or off. When the speed adjustment button is pressed, the ironing speed of the ironing machine can be adjusted, and the corresponding speed is displayed on the display panel of the monitor.

4. The power failure protection circuit for an ironing machine according to claim 2, characterized in that: The input terminal of the main control module is also connected to a temperature and humidity sensor. The temperature and humidity sensor is used to detect the temperature of the iron and transmit the detection data back to the main control module in real time. The main control module transmits the temperature data to the display module and displays the specific temperature on the display panel.

5. The power failure protection circuit for an ironing machine according to claim 1, characterized in that: The power module is equipped with a protection circuit, which is connected in parallel to the power input terminal.

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