CN111728343A

CN111728343A - Comfortable electric hair drier

Info

Publication number: CN111728343A
Application number: CN202010670165.5A
Authority: CN
Inventors: 马玉林
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2020-10-02

Abstract

The invention provides a comfortable electric hair drier which comprises a shell, a fan and an electric heating device, wherein the shell is provided with a fan hole; two three-dimensional position sensors with central connecting lines parallel to the air outlet direction are arranged on the shell; the fan and the electric heating device are matched with a power adjusting module, and the power adjusting module is coupled with the two three-dimensional position sensors and the same single chip microcomputer module; the three-dimensional position sensor is matched with a point contact switch arranged on the shell, the single chip microcomputer module reads the space position of the three-dimensional position sensor once when the point contact switch acts for every time, and calculates the intersection point position of the center connecting line of the two three-dimensional position sensors when the point contact switch acts for two times continuously, and adjusts the output power of the fan and the electric heating device according to the positive correlation relationship through the power adjusting module according to the distance between the intersection point and the air port of the shell. This hairdryer can the induction electric hair drier and the head between the distance to along with this distance's change and adjust air output and air-out temperature.

Description

Comfortable electric hair drier

Technical Field

The invention relates to the field of household appliances, in particular to an electric hair drier.

Background

Electric hair dryers are commonly used for drying and styling hair; when blowing hair, the distance between hairdryer and hair changes, and people will change thereupon to the demand of air output and air-out temperature, and above-mentioned distance can't be responded to present hairdryer, and air output and air-out temperature need manually be adjusted, seem comparatively troublesome when using.

The electric hair drier is also difficult to realize by installing a distance measuring probe; the distance measuring instrument is divided into laser distance measuring and sound wave distance measuring in principle, wherein the laser distance measuring is difficult to be applied due to the absorption and scattering effect of black hair to light, and the sound wave distance measuring effect can be greatly influenced in the noisy environment of hair blowing.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a comfortable electric hair dryer, which can sense the distance between the electric hair dryer and the head, and adjust the air output and the air output temperature with the change of the distance.

The technical scheme adopted by the invention for solving the technical problems is as follows: the comfortable electric hair drier comprises a shell, a fan and an electric heating device; two three-dimensional position sensors with central connecting lines parallel to the air outlet direction are arranged on the shell; the fan is matched with the electric heating device and is provided with a power adjusting module, and the power adjusting module and the two three-dimensional position sensors are coupled to the same single chip microcomputer module; the three-dimensional position sensor is matched with a point contact switch arranged on the shell, the point contact switch acts once, the single chip microcomputer module reads two times of spatial positions of the three-dimensional position sensor and calculates two intersection point positions of center connecting lines of the three-dimensional position sensor when the point contact switch acts twice continuously, and the fan and the output power of the electric heating device are adjusted according to positive correlation through the power adjusting module according to the distance between the intersection point and the air port of the shell.

Preferably, the two consecutive operations are two operations occurring within 2 seconds of the touch switch, and a non-consecutive operation is determined when the time exceeds 3 seconds.

Preferably, the two actions of pressing and releasing the point contact switch are counted as two continuous actions; therefore, the point touch switch is pressed first during operation, and is released after the direction of the electric hair drier is changed, so that the position of the intersection point of the central connecting line can be determined, and the operation is very convenient and fast; further, the point touch switch is a touch switch.

Preferably, the single chip microcomputer module can adopt the following models: MC9S08AC32CFGE, STM32F030F4P6, STC89C52 RC; the price is low, and the cost is convenient to control.

Preferably, the three-dimensional position sensor may be a sensor of a type of MPU 6050.

The invention has the beneficial effects that: when the comfortable electric hair drier is used, firstly, an air opening of the electric hair drier is aligned to the head, and a point touch switch is pressed, so that the single chip microcomputer module determines a straight line according to initial point coordinates of the two three-dimensional position sensors; then changing the position of the electric hair drier, aligning the air inlet with the head, pressing the point touch switch again, enabling the single chip microcomputer module to determine a straight line again according to second point coordinates of the two three-dimensional position sensors, and determining the intersection point of the two straight lines according to the two straight lines to obtain the center position of the head; because the three-dimensional position sensor is fixed relative to the electric hair drier shell, in the air blowing process, the real-time distance between the electric hair drier and the head can be known through the real-time position sensed by the three-dimensional position sensor through the single chip microcomputer module, and then the power of the fan and the electric heating device is adjusted in real time through the power adjusting module; therefore, when a user blows hair, the user can obtain comfortable blowing experience no matter how the position of the hair dryer changes.

Drawings

Fig. 1 is a schematic view of an embodiment of the comfortable hair dryer.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

in the embodiment shown in fig. 1, the comfortable hair dryer comprises a housing 1, a fan 2 and an electric heating device 3; two three-

dimensional position sensors

41 and 42 with central connecting lines parallel to the air outlet direction are arranged on the shell 1; the fan 2 and the electric heating device 3 are matched with each other to form a power adjusting module 5, and the power adjusting module 5 and the two three-

dimensional position sensors

41 and 42 are coupled to the same single chip microcomputer module 6; three-

dimensional position sensor

41, 42 are matched with and are located point touch switch 10 on the shell 1, this point touch switch 10 once moves, singlechip module 6 reads once two three-

dimensional position sensor

41, 42's spatial position, and calculates when point touch switch 10 moves twice in succession, two the crossing point position of three-

dimensional position sensor

41, 42 center-line, and according to this crossing point with the distance in the wind gap of shell 1, through power conditioning module 5 adjusts according to positive correlation fan 2 with electric heating device 3's output.

The two consecutive operations are two operations occurring within two seconds of the touch switch 10, and a discontinuous operation is determined to be a discontinuous operation for more than three seconds.

In addition, the single chip microcomputer module 6 can adopt the following models: MC9S08AC32CFGE, STM32F030F4P6, STC89C52 RC; the price is low, and the cost is convenient to control. In addition, the three-

dimensional position sensors

41 and 42 may be sensors of a type of MPU 6050.

When the comfortable electric hair drier is used, firstly, the air opening of the electric hair drier is aligned to the head, and the point touch switch 10 is pressed, so that the single chip microcomputer module 6 obtains the initial point coordinate A of the two three-dimensional position sensors 41 and 42₁（x₁，y₁，z₁）、B₁（x₂，y₂，z₂) And determining therefrom a straight line L₁：(x-x₁)/(x₂-x₁)=(y-y₁)/(y₂-y₁)=(z-z₁)/(z₂-z₁) (ii) a Then the position of the electric hair drier is changed, the air inlet is aligned with the head, and then the point touch switch 10 is pressed again, so that the singlechip module 6 obtains a second point coordinate A of the two three-dimensional position sensors 41 and 42₂（x₃，y₃，z₃）、B₂（x₄，y₄，z₄) From which a straight line L is again determined₂：(x-x₃)/(x₄-x₃)=(y-y₃)/(y₄-y₃)=(z-z₃)/(z₄-z₃) And calculating to obtain an intersection point M of L1 and L2, namely determining the center position of the head; since the three-

dimensional position sensors

41 and 42 are fixed relative to the hair dryer housing 1, in the hair drying process, the single chip microcomputer module 6 can obtain the real-time distance between the hair dryer and the head through the real-time positions of the three-

dimensional position sensors

41 and 42, and then adjust the power of the fan 2 and the electric heating device 3 through the power adjusting module 5 in real time; therefore, when a user blows hair, the user can obtain comfortable blowing experience no matter how the position of the hair dryer changes.

It is noted that the line L is not accurate enough for manual control₁And L₂May not intersect in three dimensions, in which case one may choose to do soL₁And L₂The middle point of the shortest line segment between the two lines is determined as M point, namely the head center position.

In addition, the two actions of pressing and releasing the point contact switch 10 can be counted as two continuous actions; therefore, when in operation, the point contact switch 10 is pressed first, and the point contact switch 10 is released after the direction of the electric hair drier is changed, so that the position of the intersection point of the central connecting line can be determined, and the operation is very convenient and fast; further, the point touch switch 10 is a touch switch.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A comfortable electric hair drier, which comprises a shell (1), a fan (2) and an electric heating device (3); the method is characterized in that: two three-dimensional position sensors (41, 42) with central connecting lines parallel to the air outlet direction are arranged on the shell (1); the fan (2) and the electric heating device (3) are matched with each other to form a power adjusting module (5), and the power adjusting module (5) and the two three-dimensional position sensors (41 and 42) are coupled to the same single chip microcomputer module (6); three-dimensional position sensor (41, 42) are matched with and are located point touch switch (10) on shell (1), and this point touch switch (10) is once moved, singlechip module (6) reads once two three-dimensional position sensor (41, 42)'s spatial position, and calculates point touch switch (10) is two when moving twice in succession three-dimensional position sensor (41, 42) center connection's intersect position to according to this intersect with the distance in the wind gap of shell (1), through power regulation module (5), adjust according to positive correlation fan (2) with the output of electro-heat equipment (3).

2. A comfortable hair dryer according to claim 1, characterized in that: the two continuous actions refer to two actions generated within 2 seconds of the point contact switch (10), and the actions are regarded as discontinuous actions when the time exceeds 3 seconds.

3. A comfortable hair dryer according to claim 1, characterized in that: and pressing and releasing the point contact switch (10) for two times, and counting as two continuous actions.

4. A comfortable hair dryer according to claim 1, characterized in that: the single chip microcomputer module (6) can adopt the following types: MC9S08AC32CFGE, STM32F030F4P6, STC89C52 RC.

5. A comfortable hair dryer according to claim 1, characterized in that: the three-dimensional position sensors (41, 42) may be sensors of a type of MPU 6050.