CN116636686A - A new hair dryer and its control method - Google Patents

Abstract

The application discloses a novel blower and a control method thereof, wherein the novel blower comprises a shell, a control main board, a negative pressure component, a first heating piece, a second heating piece and a stepless regulating component, wherein an air channel is formed in the shell; the control main board is arranged on the shell; the negative pressure component is arranged in the air duct and is used for sucking accelerating fluid; the negative pressure component is electrically connected with the control main board; the first heating element and the second heating element are both arranged in the air duct and are used for heating fluid; the first heating piece and the second heating piece are electrically connected with the control main board; the stepless regulation component is arranged on the shell and is electrically connected with the control main board and is used for transmitting control signals to the control main board so as to steplessly regulate the suction power of the negative pressure component, the current value of the first heating element and the current value of the second heating element. The air speed and the temperature of the blower are adjusted simultaneously in a stepless adjusting mode, so that the diversity of the working modes of the blower is increased, more use requirements are met, and the blower is convenient and flexible to use.

Description

A new hair dryer and its control method

technical field

The invention relates to the technical field of hair dryers, in particular to a novel hair dryer and a control method thereof.

Background technique

Hair dryer is a common electrical appliance in people's daily life, and is generally used to dry hair. The existing hair dryer heats the fluid blown out by the hair dryer by setting a heating part in the hair dryer, so that the hair dryer can have a normal temperature mode and a hot air mode, and the user can choose the drying method in different seasons and different environments. There are mainly two types of hair dryers on the market. One is a traditional hair dryer with high temperature and low wind speed. For a high-speed hair dryer with high temperature and high wind speed, the temperature at 10 cm from the air outlet is about 40-60 degrees Celsius, and the speed is generally about 100,000.

However, the working modes of the existing hair dryers are all pre-set, and both the wind speed gear and the temperature gear are individually controlled, so the working mode of the hair dryer is limited, the range of use is limited, and there is flexibility in use. Deficiencies of sexual inadequacy.

Therefore, the prior art still needs to be improved and developed.

Contents of the invention

In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a new type of hair dryer and its control method, aiming to solve the problem that the existing hair dryer has a fixed working mode and limited gear adjustment, so it can only meet specific use environments, and there are The problem of insufficient flexibility.

Technical scheme of the present invention is as follows:

A new type of hair dryer, which includes a housing, a control board, a negative pressure assembly, a first heating element, a second heating element, and a stepless adjustment assembly, and an air duct is formed in the housing; the control board is arranged on the On the housing; the negative pressure assembly is arranged in the air duct for sucking accelerated fluid; the negative pressure assembly is electrically connected to the control main board; the first heating element and the second heating element, Both are arranged in the air duct for heating fluid; and, the first heating element and the second heating element are both electrically connected to the control board; the stepless adjustment assembly is arranged on the housing , is electrically connected with the control main board, and is used to transmit a control signal to the control main board to steplessly adjust the suction power of the negative pressure component, the current value of the first heating element and the second heating element current value.

The new hair dryer described above, wherein the housing includes a grip portion and an air cylinder portion, the front end of the grip portion is docked with the air cylinder portion, an air inlet is formed at the rear end of the grip portion, and the air inlet is formed at the rear end of the grip portion. The air inlet communicates with the first channel formed in the grip part; the air outlet is formed at the front end of the air tube part, and the air outlet communicates with the second channel formed in the air tube part; the air inlet, the The first channel, the second channel and the air outlet are connected in sequence, and jointly form the air channel; the control board and the stepless adjustment assembly are arranged on the gripping part, and the negative pressure The assembly is arranged in the first channel; the first heating element and the second heating element are arranged in the second channel along the direction of fluid flow.

Said novel hair dryer, wherein, a sinking groove is formed on the holding part, the top surface of the sinking groove is flush with the outer surface of the holding part, and the bottom of the sinking groove sinks Into the first channel, a storage compartment with an open top is formed in the sinking tank, and the storage compartment is used to accommodate the control main board and the stepless adjustment assembly.

The new type of hair dryer, wherein the stepless adjustment assembly includes a circuit board, a stepless encoder and adjustment rollers, the circuit board is arranged in the storage compartment and is electrically connected to the control board; the stepless adjustment The encoder is arranged on the circuit board, and the rotating shaft of the stepless encoder is sleeved with the adjusting roller; the adjusting roller at least partially protrudes out of the opening of the storage bin.

In the novel hair dryer, the sinking height of the sinking groove in the first channel is 5-20 mm.

The present application also discloses a control method for the new hair dryer described above, wherein, the control board is provided with a gear selection button, and the gear selection button is connected to the first heating element and On the control circuit of the second heating element; the control method includes:

Determine the current working mode of the hair dryer according to the gear position of the gear selection button;

The control board controls the negative pressure component, the first heating element and the second heating element to work according to the working mode.

The control method of the novel hair dryer, wherein the step of the control board controlling the negative pressure component, the first heating element and the second heating element to work according to the working mode specifically includes:

If it is determined that the current working mode of the hair dryer is the variable temperature mode, the negative pressure component, the first heating element and the second heating element are turned on through the control board;

The control board simultaneously increases or decreases the output power of the negative pressure component, the first heating element and the second heating element according to the received adjustment signal of the stepless adjustment component.

The control method of the novel hair dryer, wherein the step of the control board controlling the negative pressure component, the first heating element and the second heating element to work according to the working mode specifically includes:

If it is determined that the current working mode of the hair dryer is the normal temperature mode, the first heating element and the second heating element are turned off through the control board;

The control board adjusts the output power of the negative pressure component according to the received adjustment signal of the stepless adjustment component.

The control method of the novel hair dryer, wherein the step of the control board controlling the negative pressure component, the first heating element and the second heating element to work according to the working mode specifically includes:

If it is determined that the current working mode of the hair dryer is the constant temperature mode, then turn on the first heating element or the second heating element to the highest output power according to the constant temperature gear, or turn on the first heating element and the second heating element at the same time parts to the maximum output power;

The control board adjusts the output power of the negative pressure component according to the received adjustment signal of the stepless adjustment component.

The control method of the novel hair dryer, wherein, after the step of controlling the negative pressure component, the first heating element, and the second heating element to work according to the working mode, the control board further includes:

If the current working mode of the hair dryer is variable temperature mode or constant temperature mode, the working time of the hair dryer is counted;

Determine whether the working time of the hair dryer has exceeded the preset safe working time;

If it is determined that the working time of the blower has exceeded the preset safe working time, the circuit is disconnected, and the negative pressure assembly, the first heating element and the second heating element are turned off.

Compared with the prior art, the embodiment of the present invention has the following advantages:

The novel hair dryer disclosed by the present invention is provided with an air channel on the casing, and a negative pressure component is arranged in the air channel to suck fluid, so that the flow of air is generated in the air channel, and the fluid can be blown out to achieve the purpose of drying. In order to adapt to more use environments, meet more use requirements, and increase the flexibility of use, the first heating element and the second heating element are set to heat the fluid in the air duct, and the hot air mode of the hair dryer is increased, so that the new hair dryer can blow out Very hot air.

In particular, the present invention also provides a stepless adjustment assembly on the casing, and simultaneously controls the output power of the negative pressure assembly, the first heating element, and the second heating element in a stepless adjustment manner, thereby flexibly adjusting the volume of the fluid blown by the blower. Wind speed and temperature, you can choose a variety of working modes such as low temperature and low speed, low temperature and high speed, high temperature and low speed, high temperature and high speed, without setting fixed gears, you can flexibly adjust the change of temperature or wind speed according to your needs, so as to meet various use requirements , Increase the use flexibility of the hair dryer.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of novel blower among the present invention;

Fig. 2 is a cross-sectional view of the novel blower along the axial direction in the present invention;

Fig. 3 is the structure explosion diagram of novel blower among the present invention;

Fig. 4 is the flowchart of the control method of novel blower among the present invention;

Fig. 5 is a diagram of the control steps of the novel hair dryer in the present invention.

Among them, 10, the shell; 11, the air duct; 12, the grip part; 121, the air inlet; 122, the first channel; 123, the sinking tank; 124, the storage compartment; ;132, second channel; 20, control main board; 30, negative pressure component; 31, drive motor; 32, fan blade; 40, first heating element; 50, second heating element; 60, stepless adjustment component; 61 , circuit board; 62, stepless encoder; 63, adjusting roller.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Referring to Fig. 1 and Fig. 2, in an embodiment of the application of the present invention, a new type of hair dryer is disclosed, which includes a housing 10, a control board 20, a negative pressure assembly 30, a first heating element 40, and a second heating element 50 And the stepless adjustment assembly 60, the air duct 11 is formed in the housing 10; the control board 20 is arranged on the housing 10; the negative pressure assembly 30 is arranged in the air duct 11 for Suction acceleration fluid; the negative pressure assembly 30 is electrically connected to the control board 20; the first heating element 40 and the second heating element 50 are both arranged in the air duct 11 for heating fluid and, both the first heating element 40 and the second heating element 50 are electrically connected to the control board 20; Electrically connected, used to transmit control signals to the control board 20 to steplessly adjust the suction power of the negative pressure assembly 30, the current value of the first heating element 40 and the current of the second heating element 50 value.

The novel blower disclosed in this embodiment is formed by plastic molding, or the casing 10 is made of metal sheet metal, and the air duct 11 is formed hollowly in the manufactured housing 10, and the fluid is sucked by setting the negative pressure assembly 30 in the air duct 11, so that The flow of air generated in the air duct 11 can blow out the fluid to achieve the purpose of drying.

Specifically, the control board 20 disclosed in this embodiment includes but is not limited to a printed circuit board 61. By printing a control circuit on the printed circuit board 61 and integrating a control chip, the negative pressure assembly 30, the first heating element 40 , the second heating element 50 and the stepless adjustment assembly 60 are connected, and the circuit wiring is reduced, saving the space inside the housing 10 .

As shown in Figure 2, the negative pressure assembly 30 disclosed in this embodiment includes a drive motor 31 and a fan blade 32 driven by the drive motor 31, and the entire negative pressure assembly 30 is arranged in the air duct 11 along the length direction of the air duct 11 , the drive motor 31 can be a motor, a stepping motor, etc., and the output end of the drive motor 31 is connected to the fan blade 32. When the output end of the drive motor 31 rotates, the fan blade 32 rotates to push the fluid in the air duct 11 forward, Thereby forming a negative pressure in the air duct 11 to suck in more fluid to achieve a suction effect.

Specifically, in order to adapt to more use environments, meet more use requirements, and increase the flexibility of use, in this embodiment, the first heating element 40 and the second heating element 50 are set to heat the fluid in the air duct 11, Increase the hot air mode of the hair dryer, so that the new hair dryer can blow out hot air with a high temperature. In actual production, electric heating wires can be used as the first heating element 40 and the second heating element 50, and the surface temperature of the first heating element 40 and the second heating element 50 can be controlled by the magnitude of the energized current, so that the present implementation can be achieved. The effect of stepless adjustment required in the example, in order to achieve the effect of more flexibly controlling the heating temperature of the hair dryer.

Specifically, the first heating element 40 and the second heating element 50 disclosed in this embodiment can use the same two sections of heating wire, which are bent and twisted in the air duct 11 in a wave shape, so as to increase the heat exchange area with the fluid , to improve the efficiency of fluid heating.

Of course, this embodiment only exemplifies the types of the first heating element 40 and the second heating element 50. There are other types of the first heating element 40 or the second heating element 50, as long as the technical effect disclosed in this application can be achieved, As an equivalent replacement of the concept of the present invention, it should also be within the protection scope of the present application.

Specifically, in this embodiment, a stepless adjustment assembly 60 is also provided on the casing 10, and the stepless adjustment assembly 60 is connected to the control board 20, so as to adjust the negative pressure assembly 30, the first heating element 40 and the second heating element 50. electrical signal. The output power of the negative pressure component 30, the first heating element 40, and the second heating element 50 is simultaneously controlled in a stepless manner, so as to flexibly adjust the wind speed and temperature of the fluid blown out by the blower, and low temperature low speed, low temperature high speed, high temperature low speed , high temperature, high speed and other working modes, without setting a fixed gear, you can flexibly adjust the temperature or wind speed change according to your needs, so as to meet various use requirements and increase the flexibility of the hair dryer.

In actual use, for example, users in high-latitude regions live in a cold environment and need high-temperature and high-speed blowing effects when using a hair dryer. The hair dryer disclosed in this embodiment can directly adjust the negative pressure assembly 30 through the stepless adjustment assembly 60 to reach the maximum. At the same time, the first heating element 40 and the second heating element 50 also reach the maximum output power, which can meet the requirements of high temperature and high wind speed. For another example, for users with sensitive scalp, high temperature or high wind speed may easily damage hair or scalp, then the hair dryer can be set to work at low temperature and low wind speed. It is also possible that in the same environment, different users have slightly different requirements for wind speed and temperature, and can flexibly adjust steplessly to adapt to actual usage conditions.

As shown in FIG. 2 , as an implementation of this embodiment, it is disclosed that the housing 10 includes a grip portion 12 and an air cylinder portion 13 , the front end of the grip portion 12 is docked with the air cylinder portion 13 , The rear end of the grip part 12 is formed with an air inlet 121, and the air inlet 121 communicates with the first passage 122 formed in the grip part 12; the front end of the air tube part 13 is formed with an air outlet 131, The air outlet 131 communicates with the second channel 132 formed in the air tube part 13; the air inlet 121, the first channel 122, the second channel 132 and the air outlet 131 are connected in sequence, and Together constitute the air duct 11; the control board 20 and the stepless adjustment assembly 60 are arranged on the grip portion 12, and the negative pressure assembly 30 is arranged in the first channel 122; the second A heating element 40 and the second heating element 50 are arranged in the second channel 132 along the direction of fluid flow.

The housing 10 in this embodiment is divided into a grip part 12 and a blower part 13, and the two parts can be manufactured separately and assembled by screws or clips, which is convenient for assembly and production. In addition, the control board 20, the stepless adjustment assembly 60, the negative pressure assembly 30, the first heating element 40, and the second heating element 50 are arranged separately, and are respectively arranged on the grip part 12 and the blower part 13, so that the overall mass distribution of the hair dryer Balanced to improve the balance of the hair dryer and easy to use.

Specifically, as another implementation of this embodiment, it is disclosed that a sinking groove 123 is formed on the gripping portion 12, and the top surface of the sinking groove 123 is flush with the outer surface of the gripping portion 12. Flat, and the bottom of the sinking tank 123 sinks into the first channel 122, the storage compartment 124 with an open top is formed in the sinking tank 123, and the storage compartment 124 is used to accommodate the control board 20 And the stepless adjustment assembly 60. In this embodiment, the sinking groove 123 is set to accommodate the stepless adjustment assembly 60 and the control main board 20, and the top surface of the sinking groove 123 is kept flush with the outer surface of the grip part 12, so that the appearance of the hair dryer is flat and beautiful and convenient. Portable effect, and can protect the stepless adjustment assembly 60 and the control main board 20, avoid bumping.

As shown in Figure 2 and Figure 3, as another implementation of this embodiment, it is disclosed that the stepless adjustment assembly 60 includes a circuit board 61, a stepless encoder 62 and an adjustment roller 63, and the circuit board 61 is set In the storage compartment 124, it is electrically connected with the control board 20; the stepless encoder 62 is arranged on the circuit board 61, and the rotating shaft of the stepless encoder 62 is sleeved with the adjustment The roller 63 ; the adjusting roller 63 at least partially protrudes out of the opening of the storage bin 124 .

When the stepless adjustment assembly 60 in this embodiment works, the rotating shaft of the stepless encoder 62 is driven to rotate by the rotation of the adjustment roller 63, and based on the rotation angle of the stepless encoder 62, the adjustment negative pressure assembly 30 or the first The adjustment signal of the output power of the heating element 40 or the second heating element 50 achieves the effect of stepless adjustment. It is easy to operate through the adjustment of the roller, and there is no frustration of the gear position, which is conducive to achieving a smoother stepless adjustment effect. In addition, in this embodiment, at least part of the adjusting roller 63 protrudes out of the storage compartment 124 , so that the roller can be visually observed and touched, and it is convenient for the user to adjust the rotation angle of the roller through contact friction.

Specifically, as another implementation manner of this embodiment, it is disclosed that the sinking height of the sinking groove 123 in the first channel 122 is 5-20 mm.

In the blower disclosed in this embodiment, in order to ensure sufficient air volume, the design of the air duct 11 is relatively wide. In order to reduce the weight of the device, the casing 10 itself is relatively thin. Therefore, in order to stably install the stepless adjustment assembly 60 on the casing 10, A sinkhole 123 is provided. First of all, the sinking height of the sinking groove 123 cannot be too small, if it is less than 5 mm, there will not be enough accommodation space, so that the rollers on the outward side on the housing 10 protrude too much from the surface of the housing 10 , affecting the overall appearance of the equipment; secondly, the sinking height of the sinking tank 123 should not be too large, the air duct 11 is set as a cylindrical pipe, and the sinking tank 123 changes the shape of the side wall of the air duct 11, so the fluid flows through it. Mixed flow is likely to occur at the bottom of the sinker 123, so there will be noise. In order to avoid excessive noise, it is not appropriate to change the shape of the side wall of the air duct 11 too much, so the sinking height should be limited within 20 mm.

As shown in Fig. 4, as another embodiment of the present application, a control method for the new hair dryer described above is disclosed, wherein, the control board 20 is provided with a gear selection button (accompanying drawing not marked), the gear selection button is connected to the control circuits of the first heating element 40 and the second heating element 50; the control method includes:

S100. Determine the current working mode of the hair dryer according to the gear position of the gear selection button;

S200. The control board controls the negative pressure component, the first heating element, and the second heating element to work according to the working mode.

In this embodiment, based on the gear position of the gear selection button on the control part, the preset working mode is selected, and the output power of the negative pressure assembly 30, the first heating element 40, and the second heating element 50 are controlled at the same time, so as to achieve The effect of flexibly adjusting the wind speed and temperature of the hair dryer can increase the flexibility of the hair dryer, and there is no need to individually control each functional component, and the operation is simple.

In actual use, the user can first locate the gear position of the gear selection button by manual or automatic selection, such as controlling through the Bluetooth module, or collecting user information through the image sensor, and then judging the appropriate blowing mode according to the user information, etc. Then work according to the selected gear to improve the smart working ability of the hair dryer. In addition, the gear selection button stays in the use position after each use, which produces a memory effect. The same user does not need to adjust when using the hair dryer repeatedly, and only needs to be directly powered on, which further improves the convenience of use.

As shown in FIG. 5 , in another implementation manner of this embodiment, a control process of a hair dryer in various working modes is disclosed. Specifically, as another implementation manner of this embodiment, it is disclosed that the step S200 specifically includes:

If it is determined that the current working mode of the hair dryer is the variable temperature mode, the negative pressure component, the first heating element and the second heating element are turned on through the control board;

The control board simultaneously increases or decreases the output power of the negative pressure component, the first heating element and the second heating element according to the received adjustment signal of the stepless adjustment component.

Specifically, as another implementation manner of this embodiment, it is disclosed that the step S200 specifically includes:

If it is determined that the current working mode of the hair dryer is the normal temperature mode, the first heating element and the second heating element are turned off through the control board;

The control board adjusts the output power of the negative pressure component according to the received adjustment signal of the stepless adjustment component.

Specifically, as another implementation manner of this embodiment, it is disclosed that the step S200 specifically includes:

If it is determined that the current working mode of the hair dryer is the constant temperature mode, then turn on the first heating element or the second heating element to the highest output power according to the constant temperature gear, or turn on the first heating element and the second heating element at the same time parts to the maximum output power;

The control board adjusts the output power of the negative pressure component according to the received adjustment signal of the stepless adjustment component.

In this embodiment, three working modes are disclosed, namely normal temperature mode, constant temperature mode and variable temperature mode. In the three modes, the control board 20 selectively sends corresponding control signals to the first heating element 40 and the second heating element 50 , so as to flexibly control the change of the wind speed and temperature of the hair dryer, and control the wind speed and temperature at the same time in accordance with the needs of use.

Specifically, as another implementation manner of this embodiment, after the step S200 is disclosed, it further includes:

S300. If the current working mode of the hair dryer is variable temperature mode or constant temperature mode, time the working time of the hair dryer;

S400. Determine whether the working time of the hair dryer has exceeded the preset safe working time;

S500. If it is determined that the working time of the hair dryer has exceeded the preset safe working time, disconnect the circuit, and turn off the negative pressure component, the first heating element, and the second heating element.

The first heating element 40 and the second heating element 50 disclosed in this embodiment are installed at the same time, which can achieve the effect of high-temperature air supply, but high-temperature operation has certain dangers, and it is easy to cause the danger of overheating and scalding or circuit overload. Set a safe working time, which can be set within 1-3 minutes. For example, in variable temperature mode, the safe working time of the highest temperature is 1 minute; in constant temperature mode, the safe working time is 3 minutes. Therefore, after working for a period of time, the air supply is automatically stopped, the circuit is disconnected, and the safety of the hair dryer is improved.

In summary, the present application discloses a new type of hair dryer, which includes a housing 10, a control board 20, a negative pressure assembly 30, a first heating element 40, a second heating element 50, and a stepless adjustment assembly 60. An air duct 11 is formed in the housing 10; the control board 20 is arranged on the housing 10; the negative pressure assembly 30 is arranged in the air duct 11 for sucking acceleration fluid; the negative pressure The assembly 30 is electrically connected to the control board 20; the first heating element 40 and the second heating element 50 are both arranged in the air duct 11 for heating fluid; and, the first heating element 40 and the second heating element 50 are both electrically connected to the control board 20; the stepless adjustment assembly 60 is arranged on the housing 10 and is electrically connected to the control board 20 for feeding the control board 20 The main board 20 transmits control signals to steplessly adjust the suction power of the negative pressure component 30 , the current value of the first heating element 40 and the current value of the second heating element 50 .

The new hair dryer disclosed in this embodiment is provided with an air duct 11 on the casing 10, and by setting a negative pressure assembly 30 in the air duct 11 to suck fluid, the flow of air is generated in the air duct 11, and the fluid can be blown out to achieve drying. the goal of. In order to adapt to more use environments, meet more use requirements, and increase the flexibility of use, the first heating element 40 and the second heating element 50 are arranged to heat the fluid in the air duct 11, and the hot air mode of the hair dryer is increased, so that The new hair dryer can blow out very hot air.

In particular, in this embodiment, a stepless adjustment assembly 60 is also provided on the casing 10, and the stepless adjustment assembly 60 is connected to the control board 20 to adjust the negative pressure assembly 30, the first heating element 40 and the second heating element 50. transmitted electrical signal. The output power of the negative pressure component 30, the first heating element 40, and the second heating element 50 is simultaneously controlled in a stepless manner, so as to flexibly adjust the wind speed and temperature of the fluid blown out by the blower, and low temperature low speed, low temperature high speed, high temperature low speed , high temperature, high speed and other working modes, without setting a fixed gear, you can flexibly adjust the temperature or wind speed change according to your needs, so as to meet various use requirements and increase the flexibility of the hair dryer.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

It should be noted that the present invention uses a new blower as an example to introduce the specific structure and working principle of the present invention, but the application of the present invention is not limited to the new blower, and can also be applied to the production and use of other similar workpieces.

It should be understood that the present invention is not limited to the precise constructions which have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (10)

1. A novel hair dryer, comprising:

the air duct is formed in the shell;

the control main board is arranged on the shell;

the negative pressure component is arranged in the air duct and is used for sucking accelerating fluid; the negative pressure component is electrically connected with the control main board;

the first heating piece and the second heating piece are arranged in the air duct and are used for heating fluid; the first heating element and the second heating element are electrically connected with the control main board; and

the stepless adjusting component is arranged on the shell, is electrically connected with the control main board and is used for transmitting control signals to the control main board so as to steplessly adjust the suction power of the negative pressure component, the current value of the first heating piece and the current value of the second heating piece.

2. The novel hair dryer of claim 1, wherein the housing comprises a grip portion and a dryer portion, the front end of the grip portion being in butt joint with the dryer portion, the rear end of the grip portion being formed with an air inlet communicating with a first channel formed in the grip portion; an air outlet is formed at the front end of the air duct part and communicated with a second channel formed in the air duct part; the air inlet, the first channel, the second channel and the air outlet are sequentially connected and form the air channel together;

the control main board and the stepless adjusting component are arranged on the holding part, and the negative pressure component is arranged in the first channel; the first heating element and the second heating element are arranged in the second channel along the flowing direction of the fluid.

3. The novel hair dryer of claim 2, wherein the grip portion is formed with a sink groove, a top surface of the sink groove is flush with an outer surface of the grip portion, a bottom of the sink groove is sunk into the first channel, and a storage bin with an open top is formed in the sink groove and is used for accommodating the control main board and the stepless adjusting assembly.

4. The novel hair dryer according to claim 3, wherein the stepless adjusting assembly comprises a circuit board, a stepless encoder and an adjusting roller, and the circuit board is arranged in the storage bin and is electrically connected with the control main board; the stepless encoder is arranged on the circuit board, and the regulating roller is sleeved on the rotating shaft of the stepless encoder; the regulating roller at least partially protrudes out of the opening of the storage bin.

5. A novel hair dryer according to claim 3, wherein the sinking height of the sinking trough in the first channel is 5-20 mm.

6. A control method for a novel hair dryer as claimed in any one of claims 1 to 5, characterized in that a gear selection button is provided on the control main board, the gear selection button being connected to the control circuits of the first heat generating element and the second heat generating element; the control method comprises the following steps:

determining the working mode of the current blower according to the gear of the gear selection button;

the control main board controls the negative pressure component, the first heating piece and the second heating piece to work according to the working mode.

7. The method of claim 6, wherein the step of controlling the negative pressure assembly, the first heat generating element, and the second heat generating element by the control main board to operate according to the operation mode specifically comprises:

if the working mode of the current blower is a temperature changing mode, starting the negative pressure assembly, the first heating piece and the second heating piece through the control main board;

the control main board increases or reduces the output power of the negative pressure component, the first heating element and the second heating element according to the received adjusting signal of the stepless adjusting component.

8. The method of claim 6, wherein the step of controlling the negative pressure assembly, the first heat generating element, and the second heat generating element by the control main board to operate according to the operation mode specifically comprises:

if the working mode of the current blower is the normal temperature mode, closing the first heating element and the second heating element through the control main board;

the control main board adjusts the output power of the negative pressure component according to the received adjusting signal of the stepless adjusting component.

9. The method of claim 6, wherein the step of controlling the negative pressure assembly, the first heat generating element, and the second heat generating element by the control main board to operate according to the operation mode specifically comprises:

if the working mode of the current blower is a constant temperature mode, starting the first heating element or the second heating element to the highest output power according to a constant temperature gear, or starting the first heating element and the second heating element to the highest output power at the same time;

the control main board adjusts the output power of the negative pressure component according to the received adjusting signal of the stepless adjusting component.

10. The method of claim 6, wherein after the step of controlling the negative pressure assembly, the first heat generating member, and the second heat generating member by the control main board to operate in the operation mode, further comprising:

if the current working mode of the blower is a temperature changing mode or a constant temperature mode, timing the working time of the blower;

determining whether the blower operating time has exceeded a preset safe operating time;

if the working time of the blower exceeds the preset safe working time, the circuit is disconnected, and the negative pressure assembly, the first heating piece and the second heating piece are closed.