Electric hair dryer capable of automatically adjusting airflow and temperature

Abstract

An electric hair dryer capable of automatically adjusting airflow and temperature, the electric hair dryer comprising a housing, a driving assembly and a heating assembly being provided in a main air duct, and a control assembly being provided on the housing. The housing is provided with a temperature sensor and a distance sensor close to an air outlet; when at different distances from the human hair, the distance sensor feeds back different distance electrical signals to the control assembly; on the basis of the different distance electrical signals, the control assembly adjusts the driving assembly to different power levels; the temperature sensor measures the surface temperature of the hair and feeds back a temperature electrical signal to the control assembly, and, on the basis of the difference between the temperature electrical signal and a target temperature corresponding to a respective distance, the control assembly adjusts the power of the heating assembly, such that the surface temperature of the hair at the current distance is consistent with the set target temperature. Providing the temperature sensor and the distance sensor at the air outlet enables the electric hair dryer to perform adjustment in real time on the basis of actual usage conditions of users.

Description

A hair dryer that automatically adjusts airflow and temperature. Technical Field

[0001] This utility model belongs to the field of hair care technology, specifically relating to a hair dryer that automatically adjusts airflow and temperature. Background Technology

[0002] Hair dryers are one of the most widely used personal care appliances in daily life. Their basic function is to dry hair by heating the air and blowing out hot air. With the development of technology, people's functional requirements for hair dryers have also increased. Existing hair dryers use manual operation buttons to control the air volume and temperature. Users need to manually adjust them based on their own experience and feeling, which makes it difficult to make precise control according to the actual condition and needs of the hair. In addition, during the use of traditional hair dryers, users adjust the power to dry their hair. The heating power of the hair dryer is constant. Once the drying effect is achieved, the hair will be kept at a constant power for a long time and the temperature will continue to rise, which will damage the hair or pose a risk of burns. Users need to frequently stop the hair dryer to cool down their hair. Utility Model Content

[0003] (1) Technical problems to be solved

[0004] This invention provides a hair dryer that automatically adjusts airflow and temperature, aiming to solve the problems that hair dryers are not convenient for automatically adjusting airflow according to the actual condition of the user's hair and cannot effectively adjust the temperature according to the current state of the hair to prevent burns.

[0005] (2) Technical solution

[0006] This utility model provides a hair dryer that automatically adjusts air volume and temperature, including a housing, with an air inlet and an air outlet at both ends of the housing, the air inlet and the air outlet being connected through a main air duct, a drive component and a heating component being provided in the main air duct, and a control component being provided on the housing.

[0007] The housing includes a temperature sensor and a distance sensor near the air outlet. The distance sensor sends different distance electrical signals to the control component at different distances from the human hair. The control component adjusts the power of the drive component according to the different distance electrical signals. The temperature sensor measures the surface temperature of the hair and sends a temperature electrical signal back to the control component. The control component adjusts the power of the heating component according to the difference between the temperature electrical signal and the target temperature at the corresponding distance, so that the surface temperature of the hair at the current distance is consistent with the set target temperature.

[0008] Furthermore, the distance sensor is an infrared laser sensor, including an infrared transmitter and an infrared receiver, and the temperature sensor is an infrared temperature sensor.

[0009] Furthermore, when the human hair is between 40cm and 4cm from the temperature sensor, the target temperature is between 45° and 55° or between 113℉ and 131℉.

[0010] Furthermore, when the distance between a human hair and the temperature sensor is greater than 40cm or less than 4cm, the driving component operates at low power, and the heating component does not activate.

[0011] Furthermore, the housing includes an outer shell and an inner shell, the outer shell including an outer shell one and an outer shell two, the outer shell one and the outer shell two being connected by a snap-fit ​​rod.

[0012] Furthermore, an air outlet duct is provided between the first outer shell and the second outer shell near the air outlet. The air outlet duct is snapped together with the inner shell. The temperature sensor and the distance sensor are disposed on the outer peripheral wall of the air outlet duct and near the air outlet.

[0013] Furthermore, an air guide shroud is provided inside the air outlet duct near the air outlet, and several partition blocks are fixedly connected to the air guide shroud. The partition blocks are fixedly connected to the inner wall of the air outlet duct to form the air outlet.

[0014] Furthermore, adjacent partition blocks form gaps, with the gap near the heating element being D1 and the gap near the air outlet being D2, and D1>D2.

[0015] Furthermore, the outer shell is provided with an external air inlet near the air inlet, an internal air inlet mesh is provided between the outer shell and the inner shell, a plurality of internal air inlets are provided on one side wall of the internal air inlet mesh, and the inner shell is provided with internal air inlets that are adapted to the external air inlet.

[0016] Furthermore, the air inlet includes an air inlet component, which is snapped together with the inner shell. The air inlet component has circumferentially arranged main air inlet holes on its front side. The inner shell has an inner air inlet mesh second near the air inlet, and the inner air inlet mesh has an inner air inlet hole second on its front side.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. By installing temperature and distance sensors at the air outlet, the hair dryer can automatically adjust the airflow and temperature according to the distance between the user's hair and the air outlet. This design allows the hair dryer to adjust in real time according to the user's actual usage, improving the drying effect and user experience.

[0019] 2. By setting a temperature sensor, the hair dryer can adjust the power of the heating element based on whether the hair has reached the target temperature. This ensures that the user is always at a suitable temperature while drying their hair, preventing hair damage or burns. This design also reduces manual operation and improves the level of intelligence. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 is a schematic diagram of the appearance of this utility model.

[0022] Figure 3 is an exploded view of the present invention.

[0023] Figure 4 is a side sectional view of this utility model.

[0024] Figure 5 is a schematic diagram of the outer shell and snap-fit ​​rod structure of this utility model.

[0025] Figure 6 is a schematic diagram of the installation of the distance sensor and temperature sensor of this utility model.

[0026] Figure 7 is a schematic diagram of the air outlet structure of this utility model.

[0027] Figure 8 is a schematic diagram of the separator block structure of this utility model.

[0028] Figure 9 is an exploded view of the air outlet duct of this utility model.

[0029] Figure 10 is a schematic diagram of the heating component of this utility model.

[0030] Figure 11 is an exploded view of the heating component of this utility model.

[0031] Figure 12 is a schematic diagram of the nozzle structure of this utility model.

[0032] Figure 13 is a schematic diagram of the drive component structure of this utility model.

[0033] Figure 14 is an exploded view of the drive component of this utility model.

[0034] Figure 15 is a schematic diagram of the external air inlet of this utility model.

[0035] Figure 16 is an exploded view of the air inlet of this utility model.

[0036] Reference numerals: 1-Shell, 11-Air inlet, 111-Air inlet component, 1111-Positioning block, 112-Main air inlet, 113-Inner air inlet mesh one, 114-Inner air inlet hole one, 12-Air outlet, 13-Outer shell, 131-Outer shell one, 132-Outer shell two, 133-Connecting hole one, 134-Connecting hole two, 135-Protrusion, 136-Outer air inlet, 14-Inner shell, 141-Inner shell one, 142-Inner shell two, 143-Inner air inlet, 144-Base, 145-Groove, 146-Inner air inlet mesh two, 147-Inner air inlet hole two, 15-Snap-fit ​​rod, 151-Connecting rod, 2-Handle, 21-Button I. 22-Button II. 23-Button III. 3-Main air duct, 31-Flow channel, 4-Drive component, 41-Motor, 42-Fan blade, 43-Shockproof sleeve, 5-Heating component, 51-Mica sheet, 511-Groove, 52-Fixing block, 521-Slot, 53-Heating wire, 6-Control component, 7-Temperature sensor, 71-Display screen, 8-Distance sensor, 81-Infrared transmitter, 82-Infrared receiver, 9-Air outlet, 91-Air guide cover, 92-Separator block, 921-Gap, 93-Ring component, 931-Square groove, 932-Magnetic component one, 94-Snap fastener, 10-Nozzle, 101-Magnetic component two. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0038] As shown in Figures 1-16, this utility model provides a hair dryer that automatically adjusts air volume and temperature, including a housing 1. The housing 1 has an air inlet 11 and an air outlet 12 at both ends. The air inlet 11 and the air outlet 12 are connected through the main air duct 3. The main air duct 3 is provided with a drive component 4 and a heating component 5. The housing 1 is provided with a control component 6.

[0039] The housing 1 is equipped with a temperature sensor 7 and a distance sensor 8 near the air outlet 12. The distance sensor 8 feeds back different distance electrical signals to the control component 6 when it is at different distances from the human hair. The control component 6 adjusts the power of the drive component 4 according to the different distance electrical signals. The temperature sensor 7 measures the surface temperature of the hair and feeds back a temperature electrical signal to the control component 6. The control component 6 adjusts the power of the heating component 5 according to the difference between the temperature electrical signal and the target temperature at the corresponding distance, so that the surface temperature of the hair at the current distance is consistent with the set target temperature.

[0040] Specifically, as shown in Figure 6, the distance sensor 8 is an infrared laser sensor, including an infrared transmitter 81 and an infrared receiver 82. The temperature sensor 7 is an infrared temperature sensor. The human body is a homeothermic organism and will continuously radiate infrared rays. The infrared temperature sensor 7 receives the infrared radiation energy from the surface of the human body and then calculates the body temperature according to a specific algorithm. The higher the temperature of different objects, the stronger the infrared energy radiated.

[0041] In use, the infrared emitter 81 of the distance sensor 8 emits an infrared laser. When the infrared laser shines on the user's hair, it is reflected back. The infrared receiver 82 receives the reflected laser beam, calculates the distance between the distance sensor 8 and the user's hair, and transmits the distance information to the control component 6 in the form of an electrical signal. The control component 6 adjusts the rotation speed of the drive component 4 according to the feedback electrical signal, thereby controlling the amount of airflow and setting the target temperature that the user needs to achieve based on the distance. The temperature sensor 7 measures the user's perceived temperature during use and transmits the measured temperature electrical signal to the control component 6. The control component 6 adjusts the power of the heating component 5 in real time based on the positive or negative difference between the measured temperature and the target temperature. By coordinating the effects of the distance sensor 8 and the temperature sensor 7, the airflow and the power of the heating component 5 are adjusted. This design eliminates the need for manual operation by the user and keeps the hair within the set temperature range suitable for the user, minimizing hair damage and avoiding the risk of burns caused by traditional hair dryers that maintain a constant heating power.

[0042] In this embodiment, as shown in FIG4, a drive component 4, a control component 6, and a heating component 5 are sequentially arranged in the main air duct 3 from the air inlet 11 to the air outlet 12. The drive component 4 is used to generate wind power to draw outside air into the main air duct 3. When the heating component 5 is working, it heats the air so that the blown air is hot air. The control component 6 is disposed between the drive component 4 and the heating component 5. Since the control component 6 will generate heat during operation, its placement in the middle allows the natural air drawn in by the drive component 4 to pass through the control component 6 first, thereby dissipating heat from it. This makes the control component 6 less prone to damage and allows it to operate efficiently.

[0043] Since the distance between the air outlet 12 and the user is not constant, the amount of airflow and the power of heating can be adjusted by setting a distance threshold.

[0044] Preferably, since the heat from the hair dryer may burn the user's hair and damage the hair quality when the user is close to the hair dryer, and the hot air received by the user is not enough to dry or style the hair when the user is far away from the hair dryer, the heating component 5 does not work when the distance sensor 8 is less than 4cm or greater than 40cm from the user, and the driving component 4 rotates at a low speed, so that the amount of air blown out is small and is natural wind, thus saving energy.

[0045] In this embodiment, the distance sensor 8 and the air outlet 12 are almost on the same vertical plane. Therefore, the distance detected by the distance sensor 8 is almost the same as the distance between the user's hair and the air outlet 12. When the distance measured by the distance sensor 8 is between 4cm and 40cm, the control component 6 drives the drive component 4 to operate at high speed, thereby increasing the air volume. The control component 6 sets the target temperature range to 45°-55° or 113℉ to 131℉. When the temperature measured by the temperature sensor 7 does not reach this range, the control component 6 controls the heating component 5 to work to reach the target temperature. Subsequently, the heating component 5 continues to work to keep the temperature within this range.

[0046] Furthermore, since the threshold range of 4cm-40cm is relatively large, it is not convenient to precisely control the air volume of the hair dryer. In order to meet different user needs and further optimize the performance and user experience of the hair dryer, the 4cm-40cm range is divided into 4-20cm, 20cm-30cm, and 30cm-40cm. A constant rotation speed of the drive component 4 is set for each range. The greater the distance, the higher the rotation speed, so as to achieve better drying or styling effects.

[0047] Specifically, as shown in Figure 5, the housing 1 includes an outer shell 13, an inner shell 14, and a snap-fit ​​rod 15. The outer shell 13 includes an outer shell 131 and an outer shell 132, which are snapped together by the snap-fit ​​rod 15. The inner shell 14 includes an inner shell 141 and an inner shell 142, which are snapped together.

[0048] Furthermore, the outer casing 131 is provided with multiple connecting holes 133, and the outer casing 132 is provided with connecting holes 134 that are adapted to the connecting holes 133. The snap-fit ​​rod 15 is provided with a connecting rod 151 that is adapted to the connecting holes 133 and / or the connecting holes 134. During installation, the outer casing 131 and the outer casing 132 are assembled, and the connecting rod 151 is inserted into the connecting holes 134 and the connecting holes 133, so that the outer casing 131 and the outer casing 132 are firmly connected and not easy to fall off. Moreover, this modular design facilitates assembly and maintenance, allowing each component to be manufactured and replaced independently, which is convenient for large-scale production and maintenance. This assembly method is simple and intuitive, and the damage to a single component does not require replacement of the entire outer casing 13, thereby reducing maintenance costs.

[0049] Furthermore, as shown in Figures 7-9, an air outlet 9 is snapped together between the outer casing 131 and the outer casing 132 near the air outlet 12. An air guide shroud 91 is provided inside the air outlet 9 near the air outlet 12. Several partition blocks 92 are fixedly connected to the air guide shroud 91. The partition blocks 92 are fixedly connected to the inner wall of the air outlet 9 to form the air outlet 12. The design of the air guide shroud 91 and the partition blocks 92 is conducive to guiding and distributing airflow, forming uniform airflow, and improving the blowing effect.

[0050] The distance sensor 8 and the temperature sensor 7 are fixedly disposed on the outer peripheral wall of the air outlet 9 and near the air outlet 12. In this embodiment, the temperature sensor 7 and the distance sensor 8 are disposed on the upper outer peripheral wall of the air outlet 9, and the outer shell 131 is provided with a protrusion 135 adapted to the distance sensor 8 and the temperature sensor 7. This design further protects the temperature sensor 7 and the distance sensor 8 from impact damage, providing superimposed protection.

[0051] Preferably, an annular component 93 is snapped onto the air outlet 9 near the air outlet 12. The annular component 93 has a square groove 931. The outer peripheral wall of the air outlet 9 has a snap-fit ​​component 94 that is adapted to the square groove 931. The square groove 931 of the annular component 93 is snapped onto the snap-fit ​​component 94, thereby securing the annular component 93 to the air outlet 9. The annular component 93 is hollow inside, so it will not affect the airflow of the hair dryer.

[0052] Preferably, the heating element 5 is disposed inside the air outlet 9 and on the side away from the air outlet 12, and a gap 921 is formed between adjacent partition blocks 92. The gap 921 of the partition block 92 near the end of the heating element 5 is D1, and the gap 921 near the end of the air outlet 12 is D2, and D1>D2. This design helps the airflow to gradually accelerate when passing through the air outlet 12, thereby improving the airflow efficiency. At the same time, while improving the performance of the hair dryer, the aesthetics of the product are also taken into consideration, making the hair dryer more beautiful and practical.

[0053] Specifically, as shown in Figures 10-11, the heating component 5 is disposed inside the air guide shroud 91. The heating component 5 includes a plurality of centrally symmetrical mica sheets 51 and a fixing block 52. The fixing block 52 is disposed at one end away from the air outlet 12 and is snapped to the mica sheets 51.

[0054] Furthermore, the fixing block 52 is provided with several slots 521 corresponding to the mica sheets 51. The mica sheets 51 are inserted into the slots 521, thereby fixing several mica sheets 51 and making them centrally symmetrical. Adjacent mica sheets 51 and the inner wall of the main air duct 3 together form the flow channel 31. The heating component 5 is also provided with a heating wire 53. The mica sheets 51 are provided with toothed grooves 511 that are adapted to the heating wire 53. The heating wire 53 is wound around the mica sheets 51 and electrically connected to the control component 6 to control the heating. The air in the main air duct 3 is diverted to the flow channel 31. The heating component 5 works to generate heat, so that the blown air is hot air.

[0055] Specifically, as shown in Figure 12, a nozzle 10 is magnetically attached to one end of the air outlet 9 near the air outlet 12. A magnetic attachment 932 is provided on the end face of the annular component 93 away from the air outlet 12. A magnetic attachment 101 with the opposite magnetic properties to the magnetic attachment 932 is provided on the nozzle 10. In use, the nozzle 10 is brought close to the air outlet 9, and the air outlet 9 and the nozzle 10 are connected together under the action of magnetism. The nozzle 10 is flat, which further concentrates the air coming out of the air outlet 12, increases the air output efficiency, and makes the hair drying speed faster. This design is easy to install and disassemble, and is convenient for users to use at any time.

[0056] Specifically, as shown in Figures 13-14, the drive assembly 4 includes a motor 41 and a fan blade 42. In use, the motor 41 drives the fan blade 42 to rotate at high speed under the action of the control assembly 6, drawing air in from the air inlet 11, flowing through the main air duct 3, and then blowing it out from the air outlet 12.

[0057] Preferably, since the motor 41 will generate vibration and noise during operation, the motor 41 and the fan blade 42 are covered with a shockproof sleeve 43. By designing the shockproof sleeve 43, the vibration transmitted to the outer shell 13 is reduced, the discomfort of the user when holding the hair dryer is reduced, the user experience is improved, and the reduction of vibration can reduce the wear of the motor 41 and the fan blade 42, extend the service life of the hair dryer, and enhance its market competitiveness.

[0058] Specifically, as shown in Figures 15-16, the outer shell 13 has several circumferentially arranged external air inlets 136 near the air inlet 11. The outer shell 13 and the inner shell 14 have an internal air inlet mesh 113 near the air inlet 11. The internal air inlet mesh 113 is hollow inside and has several internal air inlets 114 on its side walls. The inner shell 14 has internal air inlets 143 adapted to the external air inlets 136. The internal air inlets 143 are larger on the outside and smaller on the inside to increase air pressure, thereby increasing wind speed and reducing noise during air intake. The motor 41 drives the fan blades 42 to rotate, and the air enters from the side through the outer air inlet 136, passes through the inner air inlet mesh 113 to reach the inner shell 14, and then enters the main air duct 3 through the inner air inlet 143 of the inner shell 14, reaching the interior of the inner shell 14. After that, the airflow reaches the air outlet 12 from the main air duct 3 to achieve air outlet. This design adopts a three-stage air intake to reduce wind noise. In addition, by designing the inner air inlet mesh 113 between the outer shell 13 and the inner shell 14, hair or other impurities are prevented from entering the hair dryer during the airflow process and causing damage to the internal structure.

[0059] Furthermore, the air inlet 11 includes an air inlet component 111, which is inserted into the inner shell 14. The air inlet component 111 has main air inlet holes 112 arranged circumferentially on the front side. A temperature display screen 71 is provided near the air inlet 11. The display screen 71 displays the user's current temperature or target temperature, which can be further adjusted according to actual needs. A positioning block 1111 is provided on the air inlet component 111. A base 144 is provided inside the inner shell 14 near the display screen 71. A groove 145 is provided in the base 144. The display screen 71 is disposed in the groove 145. The base 144 is snap-fitted to the positioning block 1111. The positioning block 1111 is transparent and serves to fix and protect the display screen 71.

[0060] Furthermore, the base 144 is provided with an inner air inlet mesh 146 at the end away from the air inlet 11. The inner air inlet mesh 146 is provided with a plurality of inner air inlet holes 147. The inner air inlet mesh 146 is fixedly connected to the inner shell 14. In use, the airflow is drawn in from the main air inlet hole 112, reaches the main air duct 3, and then reaches the inner air inlet mesh 146 before passing through the main air duct 3 and being blown out from the air outlet 12 to achieve air outlet. By setting the inner air inlet mesh 146, hair or other impurities are prevented from entering the hair dryer during the airflow process and causing damage to the internal structure.

[0061] In this embodiment, airflow can be bidirectionally introduced from the outer air inlet 136 of the outer shell 13 and the main air inlet 112 of the air inlet 111. This design results in a large air intake volume and an aesthetically pleasing appearance.

[0062] To facilitate user gripping of the hair dryer, as shown in Figure 2, the housing 1 also includes a handle 2. Users can hold the handle 2 to blow-dry or style the hair at multiple angles. Preferably, the handle 2 is also equipped with a button 3 23, which controls the on / off state of the entire circuit. Only when the bottom of the handle 2 is connected to an external power source, and the power is turned on, can the heating and airflow functions of the hair dryer be realized by pressing the button 3 23 to connect the circuit.

[0063] Furthermore, the handle 2 is equipped with a button 21 for manually adjusting the temperature and a button 22 for manually adjusting the airflow. Users can automatically adjust the airflow and heating temperature based on their own body feel and actual needs, achieving more precise control and thus obtaining a more comfortable blowing experience. Under the premise of intelligent control of the hair dryer, the manual adjustment function can also serve as a supplement to address the possible limitations of intelligent control. Moreover, in the event of a malfunction in the intelligent system, the manual adjustment function can still serve as a backup plan to ensure that the basic functions of the hair dryer are available. By providing a hair dryer design that offers two ways to control the airflow temperature and airflow—automatic adjustment based on the distance sensor 8 and the temperature sensor 7, and manual adjustment via buttons 21 and 22—users are provided with a more comprehensive and flexible user experience.

[0064] The following is a detailed explanation of the working principle of this utility model;

[0065] This utility model provides a hair dryer that automatically adjusts air volume and temperature, including a housing 1. The housing 1 has an air inlet 11 and an air outlet 12 at both ends. The air inlet 11 and the air outlet 12 are connected through a main air duct 3. The main air duct 3 is provided with a drive component 4 and a heating component 5. The housing 1 is provided with a control component 6.

[0066] The housing 1 is equipped with a temperature sensor 7 and a distance sensor 8 near the air outlet 12. The distance sensor 8 feeds back different distance electrical signals to the control component 6 when it is at different distances from the human hair. The control component 6 adjusts the power of the drive component 4 according to the different distance electrical signals. The temperature sensor 7 measures the surface temperature of the hair and feeds back a temperature electrical signal to the control component 6. The control component 6 adjusts the power of the heating component 5 according to the difference between the temperature electrical signal and the target temperature at the corresponding distance, so that the surface temperature of the hair at the current distance is consistent with the set target temperature.

[0067] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

[0068] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hair dryer that automatically adjusts airflow and temperature, characterized in that, Includes a housing (1), with an air inlet (11) and an air outlet (12) at both ends of the housing (1). The air inlet (11) and the air outlet (12) are connected through the main air duct (3). The main air duct (3) is provided with a drive component (4) and a heating component (5). The housing (1) is provided with a control component (6). The housing (1) is provided with a temperature sensor (7) and a distance sensor (8) near the air outlet (12). The distance sensor (8) feeds back different distance electrical signals to the control component (6) when it is at different distances from the human hair. The control component (6) adjusts the power of the drive component (4) according to the different distance electrical signals. The temperature sensor (7) measures the surface temperature of the hair and feeds back the temperature electrical signal to the control component (6). The control component (6) adjusts the power of the heating component (5) according to the difference between the temperature electrical signal and the target temperature at the corresponding distance, so that the surface temperature of the hair is consistent with the set target temperature at the current distance.

2. The hair dryer with automatic airflow and temperature adjustment according to claim 1, characterized in that, The distance sensor (8) is an infrared laser sensor, including an infrared transmitter (81) and an infrared receiver (82), and the temperature sensor (7) is an infrared temperature sensor.

3. The hair dryer with automatic airflow and temperature adjustment according to claim 2, characterized in that, When the human hair is between 40 cm and 4 cm from the temperature sensor (7), the target temperature is between 45° and 55° or between 113° and 131°.

4. The hair dryer with automatic airflow and temperature adjustment according to claim 2, characterized in that, When the distance between a human hair and the temperature sensor (7) is greater than 40cm or less than 4cm, the driving component (4) operates at low power, and the heating component (5) does not start.

5. The hair dryer with automatic airflow and temperature adjustment according to claim 1, characterized in that, The housing (1) includes an outer shell (13) and an inner shell (14). The outer shell (13) includes an outer shell one (131) and an outer shell two (132). The outer shell one (131) and the outer shell two (132) are connected by a snap-fit ​​rod (15).

6. The hair dryer with automatic airflow and temperature adjustment according to claim 5, characterized in that, An air outlet duct (9) is provided between the outer shell 1 (131) and the outer shell 2 (132) near the air outlet (12). The air outlet duct (9) is snapped to the inner shell (14). The temperature sensor (7) and the distance sensor (8) are located on the outer peripheral wall of the air outlet duct (9) and near the air outlet (12).

7. The hair dryer with automatic airflow and temperature adjustment according to claim 6, characterized in that, An air guide hood (91) is provided inside the air outlet (9) near the air outlet (12). Several partition blocks (92) are fixedly connected to the air guide hood (91). The partition blocks (92) are fixedly connected to the inner wall of the air outlet (9) to form the air outlet (12).

8. The hair dryer with automatic airflow and temperature adjustment according to claim 7, characterized in that, The adjacent partition blocks (92) form a gap (921). The gap (921) of the partition block (92) near the end of the heating component (5) is D1, and the gap (921) near the end of the air outlet (12) is D2, and D1>D2.

9. A hair dryer with automatic airflow and temperature adjustment according to claim 5, characterized in that, The outer shell (13) is provided with an external air inlet (136) near the air inlet (11), and an internal air inlet mesh (113) is provided between the outer shell (13) and the inner shell (14). The side wall of the internal air inlet mesh (113) is provided with a plurality of internal air inlets (114), and the inner shell (14) is provided with internal air inlets (143) that are adapted to the external air inlet (136).

10. A hair dryer with automatic airflow and temperature adjustment according to claim 9, characterized in that, The air inlet (11) includes an air inlet component (111), which is snapped together with the inner shell (14). The air inlet component (111) has a main air inlet hole (112) arranged in a circumferential direction on its front side. The inner shell (14) has an inner air inlet mesh (146) near the air inlet (11), and the inner air inlet mesh (146) has an inner air inlet hole (147) on its front side.

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