Patent Application
20240398084
The present application claims priority to Chinese patent application NO. 202310647702.8, filed on Jun. 1, 2023, all of which is herein incorporated by reference.
The present disclosure relates to the technical field of hair dryer, in particular to a novel hair dryer and a control method thereof.
Hair dryers are commonly used electrical appliances in people's daily lives, primarily employed for drying hair. Existing hair dryers heat the fluid expelled by incorporating heating components within the nozzle, allowing them to operate in both a normal temperature mode and a hot air mode. This enables users to choose the desired drying method according to different seasons and environments. Currently available hair dryers mainly fall into two types: traditional hair dryers with high temperature and low airflow, where the temperature at a distance of 10 centimeters from the air outlet is around 70-80 degrees Celsius, and the speed generally stays below 30,000 rpm. The other type is high-speed hair dryers with low heat and high airflow, with a temperature at 10 centimeters from the air outlet around 40-60 degrees Celsius and a speed typically around 100,000 rpm.
However, existing hair dryers operate in predetermined modes, and both the airflow gear and temperature gear are controlled separately. As a result, the available working modes and the range of usability are limited, leading to a lack of flexibility in the usage.
Therefore, the prior art still needs to be improved and developed.
In view of the above-mentioned deficiencies in the prior art, the purpose of the present disclosure is to provide a new type of hair dryer and a control method thereof, aiming to solve the problem that the existing hair dryer can only meet specific use environment and has the problem of insufficient flexibility due to the fixed working mode and limited gear.
Technical solution of the present disclosure is as follows:
A 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 housing; the negative pressure assembly is arranged in the air duct for sucking and accelerating fluid; the negative pressure assembly is electrically connected to the control board; the first heating element and the second heating element are both 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, and electrically connected to the control board, to transmit a control signal to the control board to steplessly adjust a suction power of the negative pressure assembly, a current value of the first heating element and a current value of the second heating element.
In the hair dryer described above, the housing includes a grip portion and a nozzle, a front end of the grip portion is docked with the nozzle, an air inlet is formed at a rear end of the grip portion, and the air inlet communicates with a first channel formed in the grip portion; an air outlet is formed at a front end of the nozzle, and the air outlet communicates with a second channel formed in the nozzle; the air inlet, the first channel, the second channel and the air outlet are connected in sequence, and jointly forming the air duct; the control board and the stepless adjustment assembly are arranged on the grip portion, and the negative pressure assembly is arranged in the first channel; the first heating element and the second heating element are arranged in the second channel along a direction of fluid flow.
In the hair dryer, a sinking groove is formed on the grip portion, a top surface of the sinking groove is flush with an outer surface of the grip portion, and a bottom of the sinking groove sinks into the first channel, a storage compartment with a top opening is formed in the sinking groove, and the storage compartment is used to accommodate the control board and the stepless adjustment assembly.
In the hair dryer, the stepless adjustment assembly includes a circuit board, a stepless encoder and an adjusting roller, the circuit board is arranged in the storage compartment and is electrically connected to the control board; the stepless adjustment encoder is arranged on the circuit board, and a rotating shaft of the stepless encoder is sleeved with the adjusting roller; and the adjusting roller is at least partially protruded out of the opening of the storage compartment.
In the hair dryer, a sinking depth of the sinking groove in the first channel is 5-20 mm.
The present disclosure also discloses a control method for the hair dryer as described above, in which the control board is provided with a gear selection button, and the gear selection button is connected to control circuits of the first heating element and the second heating element; the control method includes:
In the control method of the hair dryer, the step of controlling, through the control board, the negative pressure assembly, the first heating element and the second heating element to work according to the working mode includes:
In the control method of the hair dryer, the step of controlling, through the control board, the negative pressure assembly, the first heating element and the second heating element to work according to the working mode includes:
In the control method of the hair dryer, the step of controlling, through the control board, the negative pressure assembly, the first heating element and the second heating element to work according to the working mode includes:
In the control method of the hair dryer, after the step of controlling, through the control board, the negative pressure assembly, the first heating element and the second heating element to work according to the working mode, further includes:
Compared with the prior art, the embodiment of the present disclosure has the following advantages:
The hair dryer disclosed in the present disclosure is provided with an air duct on the housing. By incorporating a negative pressure assembly within the air duct, it creates airflow by suction, generating airflow in the air duct, enabling the expulsion of fluid to achieve the drying effect. To accommodate a wider range of usage environments, meet diverse requirements, and enhance versatility, the hair dryer is equipped with a first heating element and a second heating element to heat the fluid within the air duct, which introduces a hot air mode to the hair dryer, allowing the hair dryer to blow out high-temperature hot air.
In particular, the present disclosure also provides a stepless adjustment assembly on the housing to simultaneously control the output power of the negative pressure assembly, the first heating element and the second heating element in a stepless manner. This allows for flexible adjustment of the airflow speed and temperature of the hair dryer, enabling the selection of various operating modes such as low heat low speed, low heat high speed, high heat low speed, high heat high speed, and more. The present disclosure does not include fixed gears and allows for the flexible adjustment of temperature or airflow speed based on requirements, thereby meeting various usage demands and enhancing the versatility of the hair dryer.
In order to provide a clearer understanding of the embodiments of the present disclosure or the technical solutions in the prior art, a brief introduction is provided for the accompanying drawings required in the embodiments or the prior art. It is evident that the accompanying drawings described below are merely some embodiments recorded in the present disclosure. For those skilled in the art, additional drawings can be obtained based on these drawings without exerting creative effort.
In order to facilitate a better understanding of the present disclosure among those skilled in the art, the following description, in conjunction with the accompanying drawings of the embodiments, provides a clear and comprehensive explanation of the technical solutions presented in the embodiments of the present disclosure. It is evident that the described embodiments are only a portion of the embodiments of the present disclosure, and not the entirety. Based on the disclosed embodiments of the present disclosure, all other embodiments that those skilled in the art may obtain without exercising inventive effort fall within the scope of protection of the present disclosure.
Referring to
The hair dryer disclosed in the present embodiment is formed by plastic molding, or the housing 10 is made of metal sheet metal, and the air duct 11 is formed in the hollow of the housing 10, and the negative pressure assembly 30 is arranged in the air duct 11 to suck fluid to generate airflow in the air duct 11 and blow out the fluid to achieve the purpose of drying.
The control board 20 disclosed in the present 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
In order to accommodate a wider range of usage environments, meet diverse requirements, and enhance versatility, in the present embodiment, the first heating element 40 and the second heating element 50 are configured to heat the fluid in the air duct 11, providing a hot air mode for the hair dryer, so that the hair dryer can blow out high-temperature hot air. In actual production, electric heating wires can be adopted 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 adjusting the magnitude of the energized current, so that stepless adjustment effect is achieved in the present embodiment, and the effect of more flexible control of the heating temperature of the hair dryer is achieved.
The first heating element 40 and the second heating element 50 disclosed in the present embodiment can use two heating wires having the same condition, 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 and improve the efficiency of heating fluid.
Certainly, in the present embodiment, the types of the first heating element 40 and the second heating element 50 are merely exemplary. Other types of the first heating element 40 or the second heating element 50, as long as they achieve the technical effect disclosed in the present disclosure, can be considered as equivalent substitutions within the scope of protection of the present disclosure.
In the present embodiment, a stepless adjustment assembly 60 is also provided on the housing 10. The stepless adjustment assembly 60 is connected to the control board 20, so as to adjust the electrical signals transmitting through the negative pressure assembly 30, the first heating element 40 and the second heating element 50. The output powers of the negative pressure assembly 30, the first heating element 40 and the second heating element 50 are simultaneously controlled in a stepless manner, so as to flexibly adjust the airflow and the temperature of the fluid blown out by the hair dryer, the working modes including low heat low speed, low heat high speed, high heat low speed, high heat high speed, and more can be chosen, without setting a fixed gear. The temperature or airflow variation can be flexibly adjusted according to the needs, thereby meeting various usage requirements and enhancing the versatility of the hair dryer.
In actual use, for example, users in high-latitude regions, the living environment is cold and a high-temperature-high-speed blowing effect is required when using a hair dryer. The hair dryer disclosed in the present embodiment can directly adjust the negative pressure assembly 30 through the stepless adjustment assembly 60 to reach the maximum out power, while the first heating element 40 and the second heating element 50 also reach the maximum output power at the same time, which can meet the requirement of high-temperature and high-speed. For another example, for users with sensitive scalp, high heat or high speed may easily damage hair or scalp, then the hair dryer can be set as the working mode of low heat and low speed. It is also possible to flexibly perform stepless adjustments in the same environment to cater to slight differences in users' preferences for airflow and temperature. This allows for targeted adaptation to meet specific usage conditions.
As shown in
The housing 10 in the present embodiment is divided into a grip portion 12 and a nozzle 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 on the grip portion 12 and the nozzle 13, which helps achieve a balanced distribution of mass throughout the hair dryer, enhancing the overall balance and ease of use.
As another implementation of the present embodiment, it is disclosed that a sinking groove 123 is formed on the grip portion 12, and the top surface of the sinking groove 123 is flush with the outer surface of the grip portion 12. The bottom of the sinking groove 123 sinks into the first channel 122. A storage compartment 124 with a top opening is formed in the sinking groove 123, and the storage compartment 124 is used to accommodate the control board 20 and the stepless adjustment assembly 60. In the present embodiment, the sinking groove 123 is arranged to accommodate the stepless adjustment assembly 60 and the control board 20, and the top surface of the sinking groove 123 is kept flush with the outer surface of the grip portion 12, which ensures a smooth and sleek appearance of the hairdryer, achieving an aesthetic and portable design. Additionally, protection to the stepless adjustment assembly 60 and the control board 20 is provided, preventing them from being bumped or damaged.
As shown in
When the stepless adjustment assembly 60 in the present embodiment works, the rotating shaft of the stepless encoder 62 is driven to rotate by the rotation of the adjusting roller 63, and based on the rotation angle of the stepless encoder 62, adjusting signals that adjust the output power of the negative pressure assembly 30, the first heating element 40 or the second heating element 50 are sent to achieve the effect of stepless adjustment. By using roller for adjustment, the operation is convenient and free from the jerky sensation of fixed positions, enabling a smoother and seamless variable adjustment. Furthermore, in the present embodiment, the adjusting roller 63 is partially protruded outside the storage compartment 124, allowing for intuitive observation and easy touch access, which facilitates users to adjust the rotation angle of the roller through tactile friction.
As another implementation of the present embodiment, it is disclosed that the sinking depth of the sinking groove 123 in the first channel 122 is 5-20 mm.
In order to ensure sufficient air volume, the air duct 11 in the hair dryer disclosed in the present embodiment is designed to be wide. To reduce the weight of the hair dryer, the housing 10 itself is relatively thin. Therefore, to stably accommodate the stepless adjustment assembly 60 on the housing 10, a sinking groove 123 is introduced. Firstly, the sinking depth of the sinking groove 123 should not be too small. If the depth is less than 5 millimeters, there will not be enough space to accommodate the adjusting roller protruding from the outer side of the housing 10, affecting the overall appearance of the device. Secondly, the sinking depth of the sinking groove 123 should not be too large. Since the air duct 11 is designed as a cylindrical pipe, the sinking groove 123 alters the sidewall shape of the air duct 11. This can cause turbulence when the fluid passes through the bottom of the sinking groove 123, resulting in noise. To avoid excessive noise, it is not advisable to excessively change the sidewall shape of the air duct 11. Therefore, the sinking depth should be limited to within 20 millimeters.
As shown in
In the present embodiment, the preset working mode is selected based on the position of the gear selection button on the control component to simultaneously control the output powers of the negative pressure component 30, the first heating element 40 and the second heating element 50 to achieve flexible adjustment of the airflow and temperature of the hair dryer. This increases the flexibility of the operation of the hair dryer without the need for separate control of each functional component, making the operation simple.
During actual use, users can manually or automatically select the position of the gear selection button, for example, through a Bluetooth module to control. Or by gathering user information through an image sensor, suitable hair drying modes can be determined based on the user information. The hair dryer then operates according to the selected position, enhancing the intelligent capabilities. Additionally, the gear selection button remains in the last-used position after each use, creating a memory effect. This means that when the same user repeatedly uses the hair dryer, there is no need to readjust it. The hair dryer can be directly powered on and used, further improving convenience.
As shown in
Simultaneously increasing or decreasing, through the control board, an output power of the negative pressure assembly, the first heating element and the second heating element according to a received adjusting signal of the stepless adjustment assembly.
As another implementation of the present embodiment, it is disclosed that the step S200 comprises:
As another implementation of the present embodiment, it is disclosed that the step S200 comprises:
Three working modes are disclosed in the present embodiment, i.e., normal temperature mode, constant temperature mode and variable temperature mode. In these three working 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 airflow and temperature of the hair dryer at the same time in accordance with the needs of use.
As another implementation of the present embodiment, after the step S200 is disclosed, further comprises:
In the present embodiment, the first heating element 40 and the second heating element 50 are set simultaneously to achieve high-temperature airflow. However, working at high temperatures carries certain risks, such as the potential for overheating, burns, or circuit overloads. To address these safety concerns, a predefined safe working time is implemented, which can be set within a range of 1-3 minutes. For example, in the variable temperature mode, the maximum temperature has a safe working time of 1 minute, while in the constant temperature mode, the safe working time is set to 3 minutes. This means that after a certain period of operation, the airflow automatically stops, and the circuit is disconnected to enhance the safety of using the hair dryer.
In summary, the present disclosure provides a hair dryer, which comprises 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 and accelerating 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 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 transmitting 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 value of the second heating element 50.
The hair dryer disclosed in the present disclosure is provided with an air duct 11 on the housing 10. By incorporating a negative pressure assembly 30 within the air duct, it creates airflow by suction, generating airflow in the air duct 11, enabling the expulsion of fluid to achieve the drying effect. To accommodate a wider range of usage environments, meet diverse requirements, and enhance versatility, the hair dryer is equipped with a first heating element 40 and a second heating element 50 to heat the fluid within the air duct, which introduces a hot air mode to the hair dryer, allowing the hair dryer to blow out high-temperature hot air.
In particular, the present disclosure also provides a stepless adjustment assembly 60 on the housing 10. The stepless adjustment assembly 60 is connected to the control board 20 to adjust the electrical signals transmitted through the negative pressure assembly 30, the first heating element 40 and the second heating element 50. The output powers of the negative pressure assembly 30, the first heating element 40 and the second heating element 50 are controlled simultaneously in the stepless manner. This allows for flexible adjustment of the airflow speed and temperature of the hair dryer, enabling the selection of various operating modes such as low heat low speed, low heat high speed, high heat low speed, high heat high speed, and more. The present disclosure does not include fixed gears and allows for the flexible adjustment of temperature or airflow speed based on requirements, thereby meeting various usage demands and enhancing the versatility of the hair dryer.
It should be noted that, in non-conflicting situations, the features of the embodiments disclosed in the present disclosure can be combined with each other.
Furthermore, it should be noted that while the present disclosure is described using a new type of hair dryer as an example to explain the structure and working principle, the application of the present disclosure is not limited to the hair dryer. It can also be applied to the production and use of other similar devices.
It should be understood that the present disclosure is not limited to the precise structures described and illustrated in the accompanying drawings. Various modifications and changes can be made within the scope of the present disclosure. The scope of the present disclosure is defined only by the appended claims.
The embodiments described above are merely embodiments of the present disclosure and should not be construed as limiting the present disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present disclosure should be included within the scope of the protection.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202310647702.8 | Jun 2023 | CN | national |
