CN111713835A - A hair dryer that outputs hot air with different temperatures according to seasons - Google Patents

Abstract

The present invention discloses a hair dryer capable of outputting hot air of different temperatures according to seasons, comprising a hair dryer shell, wherein an air inlet and an air outlet are arranged on the hair dryer shell, a power supply circuit and a single-chip computer circuit connected to the power supply circuit are arranged inside the hair dryer shell, the single-chip computer circuit is connected to a key circuit for selecting a drying mode, an air outlet temperature sensor circuit arranged at the air outlet, a motor drive circuit connected to a fan motor, a thyristor circuit connected to an electric heating component and used for adjusting the temperature of the electric heating component according to the feedback temperature of the air outlet temperature sensor circuit, the season is intelligently determined according to the air inlet temperature, and a corresponding seasonal working mode is adopted and constant temperature blowing is maintained, thereby realizing the function of outputting blowing air of different temperatures in different seasons.

Description

A hair dryer that outputs hot air with different temperatures according to seasons

[Technical field]

The invention relates to a hair dryer that outputs hot air with different temperatures according to seasons.

[Background technique]

When blowing hair with a hair dryer in winter, due to the low temperature, higher temperature hot air is required to make users feel comfortable; while when blowing hair in summer, due to the higher temperature, the same high temperature hot air makes users feel uncomfortable, and even some The user directly blows the hair with cold air, but the drying process is very uncomfortable due to the evaporation of water and heat absorption. Therefore, it is necessary to output different temperatures of hot air in different seasons; however, the existing heated hair dryers do not have the ability to output hot air of different temperatures according to the seasons, and cannot self-adjust according to the ambient temperature, and lack intelligence.

[Content of the Invention]

The present invention overcomes the deficiencies of the above technologies, and provides a hair dryer that outputs hot air with different temperatures according to seasons.

To achieve the above object, the present invention has adopted the following technical solutions:

A hair dryer that outputs hot air at different temperatures according to seasons, comprising a hair dryer casing 1, which is provided with an air inlet and an air outlet, and a power supply circuit 2 and a single-chip microcomputer connected to the power supply circuit 2 are arranged in the hair dryer casing 1. Circuit 3, the single-chip circuit 3 is connected with a button circuit 4 for selecting the drying mode, an air outlet temperature sensor circuit 5 arranged at the air outlet, a motor drive circuit 7 connected with the fan motor 6, and an electric heating component 8 connected for The thyristor circuit 9 adjusts the temperature of the electric heating component 8 according to the feedback temperature of the air outlet temperature sensor circuit 5 .

The single-chip circuit 3 is connected with an air outlet temperature sensor circuit 5; according to different implementations, the single-chip circuit 3 may be connected with an air inlet temperature sensor circuit 12 at the same time.

The single-chip circuit 3 determines the season of the blowing environment by detecting the initial temperature signal given by the air inlet temperature sensor circuit 12 or the air outlet temperature sensor circuit 5, so as to control the heating power of the electric heating component 8 through the thyristor circuit 9. , and output the corresponding outlet air temperature according to the corresponding seasonal pattern.

When the single-chip circuit 3 determines the season of the blowing environment by detecting the initial temperature signal given by the air outlet temperature sensor circuit 5, the single-chip circuit 3 first cuts off the work of the electric heating component 8 through the thyristor circuit 9, thereby ensuring the air outlet. The temperature detected by the temperature sensor circuit 5 is room temperature rather than the heated hot air temperature;

When the single-chip circuit 3 determines the season of the blowing environment by detecting the initial temperature signal given by the air outlet temperature sensor circuit 5 or the air inlet temperature sensor circuit 12, the single-chip circuit 3 controls the electric heating component 8 through the thyristor circuit 9 to perform When corresponding to the seasonal working mode, the single-chip circuit 3 detects the temperature signal of the air outlet temperature sensor circuit 5 in real time, and adjusts the output power of the electric heating component 8 in real time through the thyristor circuit 9, so that the air outlet temperature is set at the corresponding seasonal mode temperature. Slight fluctuations up and down to ensure constant temperature blowing according to the temperature set in the corresponding seasonal mode;

The air outlet temperature sensor circuit 5 includes a connector CN1 connected to the air outlet temperature sensor, the pin 2 of the connector CN1 is grounded, the pin 1 of the connector CN1 is respectively connected to one end of the resistor R36 and one end of the resistor R38, and the other end of the resistor R36 is connected. Connect to 5V power supply, the other end of resistor R38 is connected to one end of capacitor C17 and the single-chip circuit 3 respectively, and the other end of capacitor C17 is grounded.

The thyristor circuit 9 includes an optocoupler U6, the pin 1 of the optocoupler U6 is connected to the 5V power supply, the pin 2 of the optocoupler U6 is connected to the single-chip circuit 3 through the resistor R41, the pin 3 of the optocoupler U6 and the The photocoupler U6 pin ⑤ is suspended, the photocoupler U6 pin ④ is connected to one end of the resistor R43 and the control end of the thyristor SCR1, the resistor R43 is connected to the power circuit 2, and the anode end of the thyristor SCR1 is connected to the power circuit 2. The cathode end of the thyristor SCR1 is respectively connected with one end of the electric heating component 8, the power supply circuit 2, and one end of the resistor R42, and the other end of the resistor R42 is connected with the photocoupler U6 pin ⑥.

The air inlet temperature sensor circuit 12 includes a connector CN3 connected to the air inlet temperature sensor, the pin 2 of the connector CN3 is grounded, the pin 1 of the connector CN3 is respectively connected to one end of the resistor R50, one end of the resistor R49, and the other end of the resistor R49. Connect to 5V power supply, the other end of resistor R50 is connected to one end of capacitor C24 and the single-chip circuit 3 respectively, and the other end of capacitor C24 is grounded.

The beneficial effects of the present invention are:

The present invention can intelligently judge the season according to the inlet air temperature, and adopts the corresponding seasonal working mode and maintains constant temperature blowing, so as to realize the function of outputting blowing with different temperatures in different seasons.

[Description of drawings]

1 is a schematic diagram of Embodiment 1 of the present invention;

2 is a schematic diagram of Embodiment 2 of the present invention;

3 is a schematic diagram of a single-chip microcomputer circuit of the present invention;

4 is a schematic diagram of a key circuit of the present invention;

5 is a schematic diagram of a thyristor circuit and an electric heating component of the present invention;

6 is a schematic diagram of a motor drive circuit of the present invention;

7 is a schematic diagram of an overvoltage protection circuit of the present invention;

8 is a schematic diagram of a temperature protection circuit of the present invention;

9 is a schematic diagram of an air outlet temperature sensor circuit of the present invention;

FIG. 10 is a schematic diagram of the air inlet temperature sensor circuit of the present invention.

[Detailed ways]

Below in conjunction with the accompanying drawings and embodiments of the present invention are described in further detail:

Example 1:

As shown in Figures 1 and 3-9, a hair dryer that outputs hot air with different temperatures according to seasons includes a hair dryer casing 1, which is provided with an air inlet and an air outlet, and the hair dryer casing 1 is provided with The power supply circuit 2 and the single-chip microcomputer circuit 3 connected with the power supply circuit 2, the single-chip circuit 3 is connected with the button circuit 4, the air outlet temperature sensor circuit 5 arranged at the air outlet, the motor drive circuit 7 connected with the fan motor 6, and the electric heating component. 8 is connected to a thyristor circuit 9 for adjusting the temperature of the electric heating component 8 according to the feedback temperature of the air outlet temperature sensor circuit 5 .

When working, the single-chip circuit 3 first cuts off the work of the electric heating component 8 through the thyristor circuit 9 to ensure that the air outlet temperature sensor circuit 5 detects the room temperature rather than the hot air temperature after heating. Determine the season at that time, so as to select the corresponding working mode, the working mode is summer mode, the outlet air temperature is 48 degrees, the spring and autumn mode, the outlet air temperature is 50 degrees, and the winter mode, the outlet air temperature is 52 degrees. The thyristor circuit 9 controls the heating temperature of the electric heating component 8, and controls the motor drive circuit 7 to drive the fan motor 6 to blow air outward. At the same time, the air outlet temperature sensor circuit 5 arranged at the air outlet detects the air temperature, and feeds the detected temperature to the single-chip microcomputer circuit. 3. The single-chip circuit 3 controls the thyristor circuit 9 to adjust the heating temperature of the electric heating component 8 according to the feedback temperature, so as to ensure the constant temperature output of the blower.

Embodiment 2:

As shown in Figure 2-10, a hair dryer that outputs hot air at different temperatures according to seasons includes a hair dryer casing 1, which is provided with an air inlet and an air outlet, and a power supply circuit 2 is arranged in the hair dryer casing 1 And the single-chip circuit 3 connected with the power supply circuit 2, the single-chip circuit 3 is connected with a button circuit 4 for selecting a seasonal mode to set the outlet temperature, an outlet temperature sensor circuit 5 arranged at the outlet, and a fan motor 6. The motor drive circuit 7 is connected to the electric heating component 8 for adjusting the temperature of the electric heating component 8 according to the feedback temperature of the air outlet temperature sensor circuit 5. The thyristor circuit 9 is connected to the air inlet temperature sensor circuit 12.

When the power is turned on, the single-chip circuit 3 controls the motor drive circuit 7 to drive the fan motor 6 to blow air. At the same time, the air inlet temperature sensor circuit 12 installed at the air inlet detects the temperature of the intake air and feeds it back to the single-chip circuit 3. The single-chip circuit 3 is based on the intake air temperature. Intelligently determine the current season, and output the blower of the corresponding seasonal working mode. The working mode is summer mode, the outlet air temperature is 48 degrees, the spring and autumn mode, the outlet air temperature is 50 degrees, and the winter mode, the outlet air temperature is 52 degrees. The air outlet temperature sensor circuit 5 detects the air temperature, and feeds the detected temperature back to the single-chip circuit 3. The single-chip circuit 3 controls the thyristor circuit 9 to adjust the heating temperature of the electric heating component 8 according to the feedback temperature, so as to ensure the constant temperature output of the blower.

Wherein, the single chip circuit 3 is connected with an overvoltage protection circuit 10 to prevent damage caused by working overvoltage; the single chip circuit 3 is connected with a temperature protection circuit 11 to prevent damage caused by excessive operating temperature.

As shown in FIG. 5 , the thyristor circuit 9 includes an optocoupler U6, the pin 1 of the optocoupler U6 is connected to the 5V power supply, and the pin 2 of the optocoupler U6 is connected to the single-chip circuit 3 through the resistor R41, and the optocoupler is coupled U6 pin ③ and optocoupler U6 pin ⑤ are suspended, the optocoupler U6 pin ④ is connected to one end of the resistor R43 and the control end of the thyristor SCR1, the resistor R43 is connected to the power circuit 2, and the anode end of the thyristor SCR1 Connected with power supply circuit 2, the cathode end of SCR1 is connected with one end of electric heating component 8, power supply circuit 2, and one end of resistor R42, and the other end of resistor R42 is connected with pin ⑥ of photocoupler U6.

As shown in FIG. 9 , the air outlet temperature sensor circuit 5 includes a connector CN1 connected to the air outlet temperature sensor, the pin ② of the connector CN1 is grounded, and the pin ① of the connector CN1 is respectively connected to one end of the resistor R36 and one end of the resistor R38 Connection, the other end of the resistor R36 is connected to the 5V power supply, the other end of the resistor R38 is connected to one end of the capacitor C17 and the single-chip circuit 3 respectively, and the other end of the capacitor C17 is grounded.

As shown in FIG. 10 , the air inlet temperature sensor circuit 12 includes a connector CN3 connected to the air inlet temperature sensor, the pin ② of the connector CN3 is grounded, and the pin ① of the connector CN3 is respectively connected to one end of the resistor R50 and one end of the resistor R49 Connection, the other end of the resistor R49 is connected to the 5V power supply, the other end of the resistor R50 is connected to one end of the capacitor C24 and the microcontroller circuit 3 respectively, and the other end of the capacitor C24 is grounded.

Claims (8)

1. A hair dryer for outputting hot air at different temperatures according to seasons, characterized in that it comprises a hair dryer casing (1), an air inlet and an air outlet are provided on the hair dryer casing (1), and an air inlet and an air outlet are provided in the hair dryer casing (1). A power supply circuit (2) and a single-chip microcomputer circuit (3) connected to the power supply circuit (2) are provided, and the single-chip circuit (3) is connected with a button circuit (4) for selecting a drying mode, and an air outlet temperature set at the air outlet. A sensor circuit (5), a motor drive circuit (7) connected to the fan motor (6), and an electric heating component (8) for adjusting the temperature of the electric heating component (8) according to the feedback temperature of the air outlet temperature sensor circuit (5) SCR circuit (9). 2. The hair dryer according to claim 1, characterized in that: the single-chip microcomputer circuit (3) is connected with an air outlet temperature sensor circuit (5); The single-chip microcomputer circuit (3) may be simultaneously connected with an air inlet temperature sensor circuit (12). 3. The hair dryer according to claim 1, characterized in that the single-chip microcomputer circuit (3) detects the air inlet temperature sensor circuit (12) or the air outlet temperature sensor circuit (5) by detecting the single-chip microcomputer circuit (3). The given initial temperature signal is used to determine the season of the blowing environment, so that the heating power of the electric heating component (8) is controlled by the thyristor circuit (9), and the corresponding outlet air temperature is output according to the corresponding season mode. 4. a kind of hair dryer according to the season that outputs different temperature hot air according to claim 1, it is characterized in that: described single chip circuit (3) judges by detecting the initial temperature signal that air outlet temperature sensor circuit (5) gives, When the air blowing environment is in season, the single-chip circuit (3) first cuts off the work of the electric heating component (8) through the thyristor circuit (9), so as to ensure that the temperature detected by the air outlet temperature sensor circuit (5) is room temperature rather than after heating hot air temperature. 5. The hair dryer according to claim 1, characterized in that: when the single-chip microcomputer circuit (3) detects an air outlet temperature sensor circuit (5) or an air inlet temperature sensor circuit (12) The initial temperature signal given by ) determines the season of the blowing environment. When the single-chip circuit (3) controls the electric heating component (8) through the thyristor circuit (9) to perform the corresponding seasonal working mode, the single-chip circuit (3) detects the The temperature signal of the air outlet temperature sensor circuit (5) adjusts the output power of the electric heating component (8) in real time through the thyristor circuit (9), so that the air outlet temperature fluctuates slightly above and below the set Blowing at a constant temperature according to the temperature set in the seasonal mode. 6. The hair dryer according to claim 1, characterized in that: the air outlet temperature sensor circuit (5) comprises a connector CN1 connected to the air outlet temperature sensor, and the connector CN1 Pin ② is grounded, and pin ① of connector CN1 is connected to one end of resistor R36 and one end of resistor R38 respectively, the other end of resistor R36 is connected to 5V power supply, the other end of resistor R38 is connected to one end of capacitor C17 and the microcontroller circuit (3) respectively, and the other end of capacitor C17 The other end is grounded. 7. a kind of hair dryer according to season output different temperature hot air according to claim 1, is characterized in that: described thyristor circuit (9) includes photocoupler U6, photocoupler U6 pin 1. and 5V power supply Connection, the photocoupler U6 pin ② is connected to the microcontroller circuit (3) through the resistor R41, the optocoupler U6 pin ③ and the optocoupler U6 pin ⑤ are suspended, the optocoupler U6 pin ④ is respectively connected with one end of the resistor R43, The control end of the thyristor SCR1 is connected, the resistor R43 is connected to the power circuit (2), the anode end of the thyristor SCR1 is connected to the power circuit (2), and the cathode end of the thyristor SCR1 is respectively connected to one end of the electric heating component (8), the power circuit ( 2) One end of the resistor R42 is connected, and the other end of the resistor R42 is connected to the photocoupler U6 pin ⑥. 8. The hair dryer according to claim 4, characterized in that: the air inlet temperature sensor circuit (12) comprises a connector CN3 connected to the air inlet temperature sensor, and the connector CN3 Pin ② is grounded, and pin ① of connector CN3 is connected to one end of resistor R50 and one end of resistor R49 respectively, the other end of resistor R49 is connected to 5V power supply, the other end of resistor R50 is connected to one end of capacitor C24 and the microcontroller circuit (3) respectively, and the other end of resistor R50 is connected to one end of capacitor C24 and the single-chip circuit (3), capacitor C24 The other end is grounded.

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