Start-stop control method for electrostatic induction type blower

Abstract

The invention provides an electrostatic induction type blower start-stop control method which is characterized in that a start switch and an electrostatic sensing device which are connected with a blower controller are arranged; the starting switch has a pressing position state and a bouncing position state and is used for sending an operation signal for starting or stopping the motor to the hair dryer controller; the electrostatic sensing device is configured to continuously output electrostatic sensing signals to the blower controller when the blower is held by a hand; the blower controller is configured to start or stop the motor in response to an operation signal made by the starting switch in a state of continuously receiving the electrostatic induction signal; if the electrostatic induction signal is continuously interrupted for n seconds, a loudspeaker or a buzzer is driven to remind, and shutdown countdown is started at the same time; the motor is forcibly shut down when countdown returns to zero; and if a continuous electrostatic induction signal is received again before countdown returns to zero, reminding is stopped, countdown stopping is quitted, and an operation signal made by the starting switch is continuously responded.

Description

Technical Field

[0001] This invention relates to a method for controlling the start and stop of an electrostatic induction hair dryer. Background Technology

[0002] Existing hair dryers operate continuously after being turned on by the user. If the user forgets to turn off the hair dryer or leaves the room, the hair dryer may become overloaded due to continuous operation, and the hot air may ignite nearby flammable materials, posing a significant safety hazard.

[0003] In response, hair dryers on the market require the user to hold or press a trigger button to operate, such as the switch and hair dryer disclosed in CN202121728102.7. This device has a mechanical press switch and a sensor switch. When the mechanical press switch is not pressed and / or the sensor switch does not detect the handle being held, the main control circuit board can control the hair dryer to stop working. While this technical solution solves the problem of turning off the hair dryer when not held by the user, it still has drawbacks: the user needs to keep their finger pressed on the mechanical press switch continuously, which not only causes finger fatigue but also makes it difficult to change the grip position. Especially when switching hands or when the finger is not aligned with the mechanical press switch, the hair dryer will stop, affecting the user experience.

[0004] Therefore, it is necessary to optimize the logic of the hair dryer's sensor control to make the product more closely match user needs. Summary of the Invention

[0005] This invention proposes an electrostatic induction hair dryer start-stop control method, the purpose of which is to provide a safe control mechanism for hair dryer products under non-hand operation, which is specifically achieved through the following technical means.

[0006] The present invention provides a method for controlling the start and stop of an electrostatic induction hair dryer, comprising the following operations: It is equipped with a start switch and an electrostatic sensor that are connected to the hair dryer controller; The start switch has two positions: pressed and released, and is used to send an operation signal to the hair dryer controller to start or stop the motor. The electrostatic sensor is configured to continuously output an electrostatic induction signal to the hair dryer controller when a person holds the hair dryer. The hair dryer controller is configured to: When continuously receiving electrostatic induction signals, the motor is started or stopped in response to the operation signal issued by the start switch; If the electrostatic induction signal is interrupted for n seconds, the speaker or buzzer will be activated to remind the user, and a countdown to shutdown will begin. Force the motor to shut down when the countdown reaches zero; If a continuous electrostatic induction signal is received again before the countdown reaches zero, the reminder will stop and the shutdown countdown will exit. The system will then continue to respond to the operation signals issued by the start switch to start or stop the motor.

[0007] In one or more embodiments of the present invention, the hair dryer controller is configured to: After the countdown reaches zero, it enters a self-locking state, which means that the hair dryer controller shuts down the motor and stops responding to the start switch to start the motor. In the self-locking state, if a continuous electrostatic induction signal is received again and the start switch is pressed again, the hair dryer controller will release the self-locking state and resume operation response to the start switch.

[0008] In one or more embodiments of the present invention, the electrostatic sensor is an electrostatic induction spring located on the handle of a hair dryer.

[0009] Compared with the prior art, the advantages of the present invention are reflected in: 1) By using electrostatic sensors to sense the holding status of the hair dryer, a shutdown protection mechanism is executed within a certain period of time after the user puts down the hair dryer. This prevents the hair dryer from overloading due to the user forgetting to turn it off, and avoids situations such as hot air igniting nearby flammable materials, thereby improving the safety performance of the hair dryer.

[0010] 2) After the countdown to shutdown, a self-locking mechanism is implemented. The user needs to hold the relevant documents and press the start switch again to release the self-locking state, so as to avoid being started under external non-human interference (water droplets, other charged objects) and causing safety hazards.

[0011] 3) It satisfies the user's perception of the hair dryer's grip status and makes the grip more flexible. There is no need to continuously press the switch. Especially when switching hands or when the finger is not aligned with the mechanical switch, the hair dryer will not stop and affect the user experience. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of an electrostatic induction hair dryer.

[0013] Figure 2 This is a flowchart illustrating the start-stop control method for an electrostatic induction hair dryer. Detailed Implementation

[0014] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution: See appendix Figure 1 and 2A method for controlling the start and stop of an electrostatic induction hair dryer, wherein the electrostatic induction hair dryer is provided with a start switch 2 and an electrostatic sensor 3 connected to the hair dryer controller, and a power switch 1 for connecting to the power supply; the electrostatic sensor 3 is an electrostatic induction spring located on the handle of the hair dryer. This method includes the following operations: The start switch 2 has two positions: pressed and released, which are used to send an operation signal to the hair dryer controller to start or stop the motor. The electrostatic sensor 3 is configured to continuously output an electrostatic induction signal to the hair dryer controller when a person holds the hair dryer. The hair dryer controller is configured to: While continuously receiving electrostatic induction signals, the motor is started or stopped in response to the operation signal issued by the start switch 2; If the electrostatic induction signal is interrupted for more than n seconds (e.g., 30, 50 seconds, etc.), the speaker or buzzer will be activated to remind the user and start the shutdown countdown. The device also has a prompt audio recorded in the memory on the mainboard of the hair dryer. The audio includes reminders to the user to pay attention to safety, how many seconds after which the hair dryer will be forcibly shut down, or instructions on how to use the hair dryer. Force the motor to shut down when the countdown reaches zero; If a continuous electrostatic induction signal is received again before the countdown reaches zero, the reminder will stop and the shutdown countdown will exit. The motor will continue to start or stop in response to the operation signal issued by the start switch 2.

[0015] Furthermore, the hair dryer controller enters a self-locking state after the countdown reaches zero. The self-locking state means that the hair dryer controller shuts down the motor and stops responding to the start switch 2 to start the motor. In the self-locking state, upon receiving a continuous electrostatic induction signal again, pressing the start switch 2 will release the hair dryer controller from the self-locking state and restore its operational response to the start switch 2. Alternatively, the self-locking state can also be released by power-off and restarting. This power-off and restart operation can be achieved through power switch 1 or by unplugging and plugging in the hair dryer's power cord.

[0016] When the user plugs in the hair dryer (power switch 1 is on), the hair dryer controller senses static electricity from the human body (i.e., static electricity induction signal) through the electrostatic induction spring, determining that the hair dryer is being held normally. This triggers the start / stop signal from the start switch 2 to activate or deactivate the motor. If the static electricity induction signal is continuously interrupted, it may indicate that the hair dryer has been put down. To avoid false alarms, the controller determines that the hair dryer has not been moved only after a 30-second interruption (this time can be set according to actual needs, for example, between 5 and 120 seconds). A reminder and a countdown to shutdown are then executed. If the user picks up the hair dryer again during the countdown, the reminder stops, and the hair dryer can be used normally.

[0017] To prevent the electrostatic induction hair dryer from being started by external non-human interference (water droplets, other charged objects), the hair dryer controller is also equipped with a self-locking mechanism. After the countdown reaches zero, it enters a self-locking state. In the self-locking state, the motor is shut down and the controller stops responding to the start switch 2 to start the motor. Only when a continuous electrostatic induction signal is received again (for example, after 3 seconds) and the start switch 2 is pressed again will the hair dryer controller release the self-locking state and resume its operation response to the start switch 2.

[0018] The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present application should be considered within the scope of protection of this patent.

Claims

1. A method for controlling the start / stop of an electrostatic induction hair dryer, characterized in that, It is equipped with a start switch and an electrostatic sensor that are connected to the hair dryer controller; The start switch has two positions: pressed and released, and is used to send an operation signal to the hair dryer controller to start or stop the motor. The electrostatic sensor is configured to continuously output an electrostatic induction signal to the hair dryer controller when a person holds the hair dryer. The hair dryer controller is configured to: When continuously receiving electrostatic induction signals, the motor is started or stopped in response to the operation signal issued by the start switch; If the electrostatic induction signal is interrupted for n seconds, the speaker or buzzer will be activated to remind the user, and a countdown to shutdown will begin. Force the motor to shut down when the countdown reaches zero; If a continuous electrostatic induction signal is received again before the countdown reaches zero, the reminder will stop and the shutdown countdown will exit. The system will then continue to respond to the operation signals issued by the start switch to start or stop the motor.

2. The electrostatic induction hair dryer start / stop control method according to claim 1, characterized in that, The hair dryer controller is configured to: After the countdown reaches zero, it enters a self-locking state, which means that the hair dryer controller shuts down the motor and stops responding to the start switch to start the motor. In the self-locking state, if a continuous electrostatic induction signal is received again and the start switch is pressed again, the hair dryer controller will release the self-locking state and resume operation response to the start switch.

3. The electrostatic induction hair dryer start / stop control method according to claim 1, characterized in that, The electrostatic sensor is an electrostatic induction spring located on the handle of the hair dryer.

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