Hair dryer

Abstract

The present disclosure relates to a hair dryer, which comprises a shell, a wind guide sleeve and a distance measuring and temperature controlling electronic component are arranged in the shell, the wind guide sleeve is for airflow to flow through, and the distance measuring and temperature controlling electronic component is arranged at the back side of the wind guide sleeve and corresponds to the wind guide sleeve. The hair dryer of the present disclosure arranges the distance measuring and temperature controlling electronic component in the shell and at the back side of the wind guide sleeve, so that the wind guide sleeve can protect the distance measuring and temperature controlling electronic component, reduce the interference of the outside environment on the distance measuring and temperature controlling electronic component, improve the detection accuracy of the distance measuring and temperature controlling electronic component, and adjust the temperature of the airflow blown by the hair dryer according to the distance detected by the distance measuring and temperature controlling electronic component, so that the temperature of the airflow blown by the hair dryer to the user is more stable, and the user experience is improved.

Description

Technical Field

[0001] This disclosure relates to the field of hair drying apparatus technology, and more particularly to a hair dryer. Background Technology

[0002] A hair dryer is a tool used for drying and styling hair, consisting of a set of heating wires and a small fan wheel. When powered on, the heating wires generate heat, and the air blown out by the fan wheel passes through the heating wires, turning into hot air. If only the small fan wheel rotates without the heating wires getting hot, then cold air will be blown out instead of hot air. Current hair dryers of this type generally have a relatively simple structure.

[0003] In related technologies, a distance sensor is installed on a hair dryer, and a pre-programmed control program allows the hair dryer to automatically control its operating status based on the distance to the user, ensuring a suitable airflow temperature. However, in these technologies, the distance sensor in the hair dryer suffers from poor detection accuracy, leading to unstable airflow temperature and negatively impacting the user experience. Utility Model Content

[0004] This disclosure proposes a hair dryer to improve the stability of the airflow temperature blown towards the user, thereby enhancing the user experience.

[0005] The hair dryer disclosed herein includes a housing, within which an air guide sleeve and a distance measuring and temperature control electronic component are provided. The air guide sleeve is through which airflow passes, and the distance measuring and temperature control electronic component is located on the rear side of the air guide sleeve and is configured corresponding to the air guide sleeve.

[0006] Optionally, the ranging and temperature control electronics includes a time-of-flight sensor, and a lens is provided between the ranging and temperature control electronics and the air guide sleeve, the lens being used to filter light.

[0007] Optionally, the rear end of the housing is connected to a rear cover, and the front end of the rear cover is provided with a connecting rod sleeve that extends into the housing. The ranging and temperature control electronics and the lens are both connected to the connecting rod sleeve.

[0008] Optionally, a connecting box is attached to the front end of the connecting rod sleeve, the ranging and temperature control electronics are located inside the connecting box, the connecting box has a perforation for the light to pass through, and the lens blocks the perforation.

[0009] Optionally, the centerline of the connecting rod sleeve coincides with the centerline of the air guide sleeve.

[0010] Optionally, the inner wall surface of the air guide sleeve is provided with a reflective layer, or the inner wall surface of the air guide sleeve forms a reflective surface.

[0011] Optionally, the distance between the ranging and temperature control electronics and the air guide sleeve is 10mm to 13mm.

[0012] Optionally, the housing includes a front housing and a handle housing, the air guide sleeve and the ranging and temperature control electronics are both disposed in the front housing, and at least a portion of the air guide sleeve extends forward beyond the front end of the front housing.

[0013] Optionally, the hair dryer also includes a nozzle, which is detachably connected to the front end of the front housing, and the air guide sleeve is connected to the nozzle.

[0014] Optionally, the hair dryer includes an air guide base, the air guide base includes an air guide cover and an air guide sleeve, the air guide sleeve is disposed inside the air guide cover and connected to the air guide cover, and the air guide cover is connected to the nozzle.

[0015] Optionally, the hair dryer further includes an air guide cover, which is located inside the front housing and behind the air guide seat. The air guide cover is connected to the air guide cover, and a collar is provided inside the air guide cover, which is connected to the air guide sleeve.

[0016] Optionally, the air nozzle includes an inner air nozzle and an outer air nozzle, the outer air nozzle is sleeved on the outside of the inner air nozzle and connected to the inner air nozzle, and the inner air nozzle and the air guide cover are connected by fasteners.

[0017] Optionally, the rear end of the external air nozzle is sleeved on the front end of the front housing and is interference-fitted with the front housing.

[0018] Optionally, the rear end of the front shell is connected to a rear cover, a side air inlet is formed between the front shell and the rear cover, an auxiliary air duct communicating with the side air inlet is formed inside the front shell, a handle tail air inlet is provided at the lower part of the handle shell, a handle tail main air duct communicating with the handle tail air inlet is formed inside the front shell and the handle shell, the air outlets of the auxiliary air duct and the handle tail main air duct are both located at the front end of the front shell, and the fan assembly is located inside the handle shell.

[0019] Optionally, the air guide sleeve encloses a portion of the auxiliary air duct.

[0020] Optionally, the hair dryer includes a control component, at least a portion of which is disposed within the rear cover.

[0021] Optionally, the rear cover forms a mounting cavity, and the control component includes a control circuit board disposed within the mounting cavity.

[0022] The hair dryer disclosed herein, by housing the ranging and temperature control electronics inside the housing and located behind the air guide sleeve, allows the air guide sleeve to protect the ranging and temperature control electronics, reducing external interference to the ranging and temperature control electronics, improving the detection accuracy of the ranging and temperature control electronics, and adjusting the airflow temperature blown by the hair dryer according to the distance detected by the ranging and temperature control electronics, so that the airflow temperature blown by the hair dryer towards the user is more stable, improving the user experience. Attached Figure Description

[0023] Figure 1 This is a perspective view of a hair dryer according to an embodiment of the present disclosure.

[0024] Figure 2 This is a side view of a hair dryer according to an embodiment of the present disclosure.

[0025] Figure 3 This is a cross-sectional view of a hair dryer according to an embodiment of this disclosure.

[0026] Figure 4 This is a partial cross-sectional view of a hair dryer according to an embodiment of the present disclosure.

[0027] Figure 5 This is a cross-sectional view of a hair dryer according to another embodiment of this disclosure.

[0028] Figure 6 This is an exploded view of a hair dryer according to another embodiment of this disclosure.

[0029] Figure label:

[0030] 1. Front housing; 11. Air guide cover; 111. Collar ring; 112. Gear ring; 12. Air guide base; 121. Air guide shroud; 122. Air guide sleeve; 13. Mica base; 14. Support frame; 16. Control circuit board; 17. Control switch; 171. Heating switch; 172. Distance-measuring temperature control switch; 18. Wall mount base; 19. Wall mount cover; 20. Wall mount magnet; 101. Fasteners;

[0031] 2. Handle housing; 21. Upper handle; 22. Lower handle; 23. Handle sleeve; 24. Filter frame; 25. Filter screen; 26. Air inlet cover; 27. Cable sleeve; 28. Fan;

[0032] 3. Fixture;

[0033] 4. Back cover; 42. Connecting rod sleeve; 43. Connecting box; 44. Distance measuring and temperature control electronic components; 45. Mounting cavity; 451. Communicating hole; 452. Heat dissipation hole; 46. Lens;

[0034] 5. Air outlet ring;

[0035] 6. Air nozzle; 61. Inner air nozzle; 62. Outer air nozzle;

[0036] 7. Side air inlet;

[0037] 8. Auxiliary air duct;

[0038] 9. Air inlet at the tail of the handle;

[0039] 10. Main air duct at the tail of the handle. Detailed Implementation

[0040] Embodiments of this disclosure are described in detail below, with examples of these embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting it.

[0041] like Figures 1 to 6 As shown, the hair dryer of this embodiment includes a housing, inside which is provided an air guide sleeve 122 and a ranging and temperature control electronic component 44. The air supply air flows through the air guide sleeve 122, and the ranging and temperature control electronic component 44 is disposed on the rear side of the air guide sleeve 122 and is disposed corresponding to the air guide sleeve 122.

[0042] The hair dryer of this embodiment has a distance-measuring and temperature-controlling electronic component 44 disposed inside the housing and located behind the air guide sleeve 122. This allows the air guide sleeve 122 to protect the distance-measuring and temperature-controlling electronic component 44, reduce external interference to the component, improve the detection accuracy of the component, and adjust the airflow temperature of the hair dryer according to the distance detected by the component. This makes the airflow temperature blown by the hair dryer more stable and improves the user experience.

[0043] Optionally, the ranging and temperature control electronics 44 includes a time-of-flight sensor (TOF sensor). For example... Figures 3 to 6 As shown, a lens 46 is provided between the ranging and temperature control electronics 44 and the air guide sleeve 122. The lens 46 is used to filter light. The TOF sensor calculates the distance by measuring the time difference between the transmission and reception of the light signal.

[0044] For example, a time-of-flight sensor includes a transmitting module and a receiving module; the transmitting module emits light, and the receiving module receives light. Figures 3 to 6 As shown, lens 46 is located on the front side of the ranging and temperature control electronics 44, and air guide sleeve 122 is located on the front side of lens 46. The transmitting module is used to emit light forward. After the light is filtered by lens 46, it is emitted forward and then through air guide sleeve 122. The reflected light passes through air guide sleeve 122 and reaches lens 46. After being filtered by lens 46, it enters the receiving module backward.

[0045] By setting lens 46 to filter light, stray light entering the receiving module can be reduced, improving the detection accuracy of the ranging and temperature control electronics 44, further improving the stability of the airflow temperature blown by the hair dryer to the user, and enhancing the user experience.

[0046] Optionally, such as Figures 1 to 4 As shown, a rear cover 4 is connected to the rear end of the housing, and a connecting rod sleeve 42 extending into the housing is provided at the front end of the rear cover 4. The ranging and temperature control electronic component 44 and the lens 46 are both connected to the connecting rod sleeve 42.

[0047] By setting a connecting rod sleeve 42 at the front end of the rear cover 4, the connecting rod sleeve 42 can be used as a mounting base for fixing the ranging and temperature control electronic component 44 and the lens 46. This reduces the number of internal parts of the housing, which helps to simplify the structure of the hair dryer and reduce its cost.

[0048] Of course, in other embodiments, a mounting base may be provided inside the housing, the ranging and temperature control electronics 44 and the lens 46 are connected to the mounting base, and the mounting base is connected to the rear cover 4.

[0049] Optionally, such as Figures 3 to 6 As shown, the front end of the connecting rod sleeve 42 is covered by a connecting box 43. The ranging and temperature control electronic component 44 is located inside the connecting box 43. The connecting box 43 has a perforation for light to pass through, and the lens 46 blocks the perforation.

[0050] For example, the front end of the connector box 43 has a perforation, and the lens 46 blocks the perforation.

[0051] By setting up a connecting box 43 and placing the ranging and temperature control electronics 44 inside the connecting box 43, with the lens 46 sealing the perforation, the ranging and temperature control electronics 44 is located within a closed cavity enclosed by the connecting box 43 and the lens 46. This prevents external moisture, dust, and other contaminants from entering the ranging and temperature control electronics 44 and affecting its detection accuracy. Consequently, the stability of the airflow temperature from the hair dryer to the user can be further improved, enhancing the user experience.

[0052] Optionally, such as Figures 3 to 6 As shown, the centerline of the connecting rod sleeve 42 coincides with the centerline of the air guide sleeve 122. In other words, the centerline of the connecting rod sleeve 42 and the centerline of the air guide sleeve 122 are collinear.

[0053] By aligning the centerline of the connecting rod sleeve 42 with the centerline of the air guide sleeve 122, it is convenient to set the center of the ranging and temperature control electronic component 44 to correspond to the center of the air guide sleeve 122.

[0054] In some embodiments, the inner wall surface of the air guide sleeve 122 is provided with a reflective layer.

[0055] For example, the inner wall of the air guide sleeve 122 forms a reflective layer by plating an electrolyte layer. When the light emitted by the emitting module of the ranging and temperature control electronics 44 shines on the inner wall of the air guide sleeve 122, the light is reflected by the reflective layer to reduce the absorption of light by the air guide sleeve 122, resulting in more light shining on the user's hair. In addition, when the light reflected back by the user's hair shines on the inner wall of the air guide sleeve 122, the light is also reflected by the reflective layer to reduce the absorption of reflected light by the air guide sleeve 122, allowing the receiving module to receive more light.

[0056] This can further improve the detection accuracy of the ranging and temperature control electronics 44 and enhance the user experience.

[0057] In other embodiments, the inner wall surface of the air guide sleeve 122 forms a reflective surface.

[0058] For example, the air guide sleeve 122 is made of metal. By making the inner wall surface of the air guide sleeve 122 a smooth surface, the inner wall surface of the air guide sleeve 122 can be used as a reflective surface to achieve a better reflection effect on light.

[0059] By forming a reflective surface on the inner wall of the air guide sleeve 122, when light emitted by the transmitting module shines on the inner wall of the air guide sleeve 122, the reflective layer reflects the light, reducing the absorption of light by the air guide sleeve 122 and resulting in more light reaching the user's hair. Furthermore, when light reflected back by the user's hair shines on the inner wall of the air guide sleeve 122, the reflective layer also reflects the light, reducing the absorption of reflected light by the air guide sleeve 122 and allowing the receiving module to receive more light. This further improves the detection accuracy of the ranging and temperature control electronics 44 and enhances the user experience.

[0060] Optionally, the distance between the ranging and temperature control electronics 44 and the air guide sleeve 122 is 10mm to 13mm.

[0061] Understandably, the light emitted by the transmitting module has a certain angle. At positions close to the transmitting module, the light will only have weak dispersion and will not illuminate the air guide sleeve 122 or other components within the housing. Therefore, it will not be reduced in intensity due to absorption by the air guide sleeve 122 or other components within the housing. Only at a greater distance from the transmitting module will the light disperse more strongly and illuminate the air guide sleeve 122 or other components within the housing, posing a risk of absorption by these components. The closer the distance between the ranging and temperature control electronics 44 and the air guide sleeve 122, the easier it is for accidental contact or interference to occur during the assembly of the hair dryer, which is detrimental to the assembly process.

[0062] By setting the distance between the ranging and temperature control electronics 44 and the air guide sleeve 122 to 10mm to 13mm, the light emitted by the transmitting module can be prevented from shining on other parts except the inner wall of the air guide sleeve 122, thus ensuring the detection accuracy of the ranging and temperature control electronics 44, while facilitating the assembly of the hair dryer.

[0063] Optionally, the housing includes a front housing 1 and a handle housing 2, with the air guide sleeve 122 and the ranging and temperature control electronics 44 both located inside the front housing 1, and at least a portion of the air guide sleeve 122 extending forward beyond the front end of the front housing 1.

[0064] Wherein, at least a portion of the air guide sleeve 122 extends forward beyond the front end of the front shell 1, which can be understood as: a portion of the air guide sleeve 122 extends forward beyond the front end of the front shell 1, and another portion of the air guide sleeve 122 is located inside the front shell 1; or, the entire air guide sleeve 122 extends forward beyond the front end of the front shell 1.

[0065] By setting the positions of the air guide sleeve 122 and the ranging and temperature control electronic component 44 as described above, the ranging and temperature control electronic component 44 is made closer to the user's hair, which can further improve the detection accuracy of the ranging and temperature control electronic component 44 and improve the user experience.

[0066] Optionally, such as Figures 1 to 6 As shown, the hair dryer also includes a nozzle 6, which is detachably connected to the front end of the front housing 1, and the air guide sleeve 122 is connected to the nozzle 6.

[0067] By incorporating a nozzle 6, which is detachably connected to the front end of the front housing 1, users can easily choose whether to use the nozzle 6 as needed, further enhancing the user experience of the hair dryer. Furthermore, connecting the air guide sleeve 122 to the nozzle 6 facilitates the installation and securing of the air guide sleeve 122.

[0068] Optionally, such as Figures 3 to 6 As shown, the hair dryer includes an air guide seat 12, which includes an air guide cover 121 and an air guide sleeve 122. The air guide sleeve 122 is located inside the air guide cover 121 and connected to the air guide cover 121. The air guide cover 121 is connected to the nozzle 6.

[0069] By setting the air guide seat 12, not only can the air guide cover 121 be used to guide the airflow in the front shell 1, but the air guide cover 121 can also be used to connect with the air nozzle 6, which further facilitates the installation and fixation of the air guide sleeve 122.

[0070] Optionally, the hair dryer also includes an air guide cover 11, which is located inside the front housing 1 and behind the air guide seat 12. The air guide cover 11 is connected to the air guide cover 121, and a collar 111 is provided inside the air guide cover 11, which is connected to the air guide sleeve 122.

[0071] By setting the air guide cover 11, the airflow inside the front shell 1 can be guided, improving the air output effect of the hair dryer and enhancing the user experience. In addition, by setting a collar 111 inside the air guide cover 11 and connecting the collar 111 to the air guide sleeve 122, the connection reliability of the air guide sleeve 122 can be improved.

[0072] Optionally, such as Figure 6 As shown, the collar 111 is provided with a toothed ring 112, and the air guide sleeve 122 is provided with a grooved ring. The grooved ring and the toothed ring 112 are engaged and locked together.

[0073] By engaging the slot ring and the toothed ring 112, it is easy to connect and disconnect the collar 111 and the air guide sleeve 122.

[0074] Optionally, the front end of the air guide cover 11 is provided with a forward-protruding connecting ring, which is connected to the air guide shroud 121.

[0075] For example, the forward-protruding connecting ring is engaged with the rear end of the air guide shroud 121.

[0076] By providing a protruding connecting ring on the air guide cover 11, it is convenient to connect and disassemble the air guide cover 11 and the air guide shroud 121.

[0077] Optionally, such as Figures 4 to 6 As shown, the air nozzle 6 includes an inner air nozzle 61 and an outer air nozzle 62. The outer air nozzle 62 is sleeved on the outside of the inner air nozzle 61 and connected to the inner air nozzle 61. The inner air nozzle 61 and the air guide cover 121 are connected by fasteners 101.

[0078] For example, fastener 101 is a screw, and the air guide seat 12 and the inner air nozzle 61 are connected by screws. Among them, such as... Figure 4 As shown, a perforation can be provided in the air guide shroud 121, and a threaded hole can be provided in the inner air nozzle 61. A screw passes through the perforation and connects to the screw in the threaded hole; as shown... Figure 5 As shown, both the inner air nozzle 61 and the air guide cover 121 can be provided with through holes, and the air guide cover 11 can be provided with threaded holes. Screws pass through the through holes of the inner air nozzle 61 and the air guide cover 121 and are threadedly connected to the threaded holes of the air guide cover 11. It should be noted that the air guide seat 12 and the inner air nozzle 61 can also be connected in other ways, such as by snap-fit ​​or welding, and are not limited to screw connection.

[0079] By connecting the inner nozzle 61 and the air guide cover 121 with fasteners 101, and with the outer nozzle 62 fitted on the outside of the inner nozzle 61, the fasteners 101 can be prevented from being exposed. This not only prevents corrosion of the exposed fasteners 101 and improves the reliability of the hair dryer, but also enhances the appearance of the hair dryer.

[0080] Optionally, the rear end of the external air nozzle 62 is fitted onto the front end of the front shell 1 and is interference-fitted with the front shell 1.

[0081] The external air nozzle 62 is interference-fitted with the front shell 1, which facilitates the installation and removal of the air nozzle 6 and helps to further improve the user experience.

[0082] Optionally, the outer air nozzle 62 and the inner air nozzle 61 are connected by magnetic attraction.

[0083] In actual use, the nozzle 6, air guide seat 12 and air guide cover 11 are connected as a component. When using the hair dryer, the user can connect and disconnect the nozzle 6 from the front shell 1 as needed to realize the connection and disconnection of this component.

[0084] In some embodiments, a rear cover 4 is connected to the rear end of the front shell 1, a side air inlet 7 is formed between the front shell 1 and the rear cover 4, and an auxiliary air duct 8 communicating with the side air inlet 7 is formed inside the front shell 1. A handle tail air inlet 9 is provided at the lower part of the handle shell 2, and a handle tail main air duct 10 communicating with the handle tail air inlet 9 is formed inside the front shell 1 and the handle tail main air duct 10. The air outlets of both the auxiliary air duct 8 and the handle tail main air duct 10 are located at the front end of the front shell 1, and the fan assembly is located inside the handle shell 2.

[0085] When the hair dryer of this utility model embodiment is working, under the drive of the fan assembly inside the handle housing 2, the airflow can enter the main air duct 10 at the tail of the handle through the air inlet 9 at the tail of the handle, and finally be ejected from the air outlet of the main air duct 10 at the front end of the front housing 1. The airflow velocity at the air outlet of the main air duct 10 at the tail of the handle is relatively high, which generates negative pressure near the air outlet of the main air duct 10 at the tail of the handle. This negative pressure can drive the airflow at the air outlet of the auxiliary air duct 8, thereby driving the airflow to enter through the side air inlet 7 and be ejected through the air outlet of the auxiliary air duct 8. This allows airflow to enter the hair dryer through the air inlet 9 at the tail of the handle and the side air inlet 7, and then be ejected through the air outlets of the main air duct 10 and the auxiliary air duct 8 at the tail of the handle, increasing the air volume of the hair dryer. In addition, by generating negative pressure near the air outlet of the main air duct 10 at the tail of the handle, the airflow is driven to enter through the side air inlet 7 and be ejected through the air outlet of the auxiliary air duct 8, which can avoid the airflow in the main air duct 10 and the auxiliary air duct 8 at the tail of the handle from affecting each other, making the airflow of the hair dryer smoother, and thus making the air blown by the hair dryer feel comfortable.

[0086] Among them, the hair dryer can also be called a side-intake dual-air-duct hair dryer. The auxiliary air duct 8 can also be called a side annular auxiliary air duct. The side air inlet 7 can also be called a side annular air inlet.

[0087] Optionally, the hair dryer includes an air guide component, such as Figures 3 to 6 As shown, the air guide assembly includes the aforementioned air guide seat 12 and the aforementioned air guide cover 11. The air guide sleeve 122 encloses a portion of the auxiliary air duct 8, and the air guide cover 121 and the front shell 1 enclose a portion of the main air duct 10 at the tail of the handle.

[0088] The front end of the air guide sleeve 122 forms the air outlet of the auxiliary air duct 8.

[0089] By setting the air guide seat 12, not only can the airflow ejected from the main air duct 10 at the tail of the handle be guided by the air guide cover 121, but the airflow in the auxiliary air duct 8 can also be guided by the air guide sleeve 122, thereby improving the airflow effect of the hair dryer and enhancing the user experience.

[0090] Optionally, the hair dryer includes a control assembly, at least a portion of which is located within the rear cover 4.

[0091] The control component is located within the rear cover 4. This can be understood as: a part of the control component is located within the rear cover 4, and another part of the control component is located in a location other than the rear cover 4; or, the entire control component is located within the rear cover 4.

[0092] By placing at least a portion of the control component within the rear cover 4, the control component is positioned further away from the outlets of the auxiliary air duct 8 and the main air duct 10 at the tail of the handle. This prevents moisture, dust, and other contaminants entering through the auxiliary air duct 8 and the main air duct 10 at the tail of the handle from falling onto the control component, thus improving its reliability and consequently enhancing the reliability of the hair dryer. Furthermore, this design minimizes the impact of the control component on the layout of the main air duct 10 and the auxiliary air duct 8 at the tail of the handle, facilitating their design.

[0093] Optionally, such as Figures 3 to 6 As shown, the rear cover 4 forms a mounting cavity 45, and the control component includes a control circuit board 16, which is disposed within the mounting cavity 45.

[0094] The control circuit board 16 can be connected to the rear cover 4 by screws. It should be noted that the control circuit board 16 and the rear cover 4 can also be connected in other ways, such as by snap-fit ​​or soldering, and are not limited to screw connection.

[0095] By setting a mounting cavity 45 inside the rear cover 4 and placing the control circuit board 16 inside the mounting cavity 45, it is possible to more effectively prevent moisture, dust, etc. from falling on the control circuit board 16, thereby improving the reliability of the control circuit board 16 and further improving the reliability of the hair dryer.

[0096] Optionally, a cover plate is connected to the rear end of the rear cover 4, and the rear cover 4 and the cover plate form an installation cavity 45.

[0097] For example, the rear cover 4 forms a cavity with an opening facing rearward, and the cover plate is connected to the rear cover 4 and seals the opening of the cavity, so that the rear cover 4 and the cover plate form an installation cavity 45.

[0098] Optionally, such as Figure 6As shown, the rear cover 4 is provided with a connecting hole 451, which connects the auxiliary air duct 8 and the mounting cavity 45.

[0099] When the hair dryer is in use, the airflow enters the auxiliary air duct 8 through the side air inlet 7. When it flows through the connecting hole 451, it can enter the mounting cavity 45 through the connecting hole 451 and exchange heat with the control circuit board 16 in the mounting cavity 45 to achieve cooling and heat dissipation of the control circuit board 16.

[0100] By providing a connecting hole 451 in the rear cover 4, the auxiliary air duct 8 and the mounting cavity 45 are connected through the connecting hole 451, allowing the airflow in the auxiliary air duct 8 to enter the mounting cavity 45, thereby cooling and dissipating heat from the control circuit board 16, extending the service life of the control circuit board 16, and thus extending the service life of the blower.

[0101] Optionally, such as Figures 3 to 6 As shown, the rear cover 451 is provided with a heat dissipation hole 452, which connects the auxiliary air duct 8 and the mounting cavity 45. The heat dissipation hole 452 is located on the front side of the connecting hole 451.

[0102] When the hair dryer is in use, the airflow entering the mounting cavity 45 exchanges heat with the control circuit board 16, and then exits the mounting cavity 45 through the heat dissipation hole 452 and enters the auxiliary air duct 8. Finally, it is discharged through the air outlet of the auxiliary air duct 8, thereby carrying away the heat of the control circuit board 16, improving the cooling and heat dissipation effect of the control circuit board 16, and further extending the service life of the hair dryer.

[0103] In addition, by placing the connecting hole 451 and the heat dissipation hole 452 on the rear cover 4, the connecting hole 451 and the heat dissipation hole 452 are far away from the air outlet of the auxiliary air duct 8. This can prevent water vapor, dust and other particles at the air outlet of the auxiliary air duct 8 from entering the mounting cavity 45 through the heat dissipation hole 452, thereby improving the reliability of the control circuit board 16 and thus improving the reliability of the blower.

[0104] Optionally, such as Figure 1 and Figure 3 As shown, the control assembly also includes a control switch 17 disposed on the handle housing 2, and the control switch 17 is electrically connected to the control circuit board 16.

[0105] By placing the control switch 17 on the handle housing 2, it is convenient for users to operate the control switch 17, thereby improving the user experience.

[0106] Optionally, such as Figure 1 and Figure 3 As shown, the control components also include a heating switch 171 and a distance-measuring temperature control switch 172 located on the handle housing 2.

[0107] The ranging and temperature control switch 172 is connected to the ranging and temperature control electronic component 44 via a signal. A heating element is installed in the main air duct 10 at the tail of the handle, and the heating switch 171 is connected to the heating element via a signal.

[0108] In some embodiments, such as Figure 2 As shown, a fixing seat 3 is connected to the inner rear part of the front shell 1, and a side air inlet 7 is formed between the fixing seat 3 and the rear cover 4.

[0109] By setting a fixed base 3, it is easy to enclose the side air inlet 7.

[0110] Optionally, the mounting base 3 is connected to the front shell 1, and the rear cover 4 is connected to the mounting base 3.

[0111] For example, the fixing seat 3 is snapped onto the front shell 1, and the rear cover 4 is connected to the fixing seat 3 by screws. The fixing seat 3 may have multiple connecting ribs, which are arranged at circumferential intervals. The rear cover 4 is connected to the connecting ribs, and airflow is allowed between adjacent connecting ribs. It should be noted that the fixing seat 3 and the front shell 1 can also be connected in other ways, such as by screws or welding, and are not limited to snap-fit ​​connections. Similarly, the rear cover 4 and the fixing seat 3 can also be connected in other ways, such as by snap-fit ​​connections or welding, and are not limited to screw connections.

[0112] In some embodiments, such as Figures 3 to 6 As shown, the front part of the front shell 1 is connected to the air outlet ring 5, and the air outlets of the auxiliary air duct 8 and the main air duct 10 at the tail of the handle are all connected to the air outlet of the nozzle 6. The aforementioned air guide assembly is provided between the nozzle 6 and the air outlet ring 5.

[0113] The airflow ejected from the auxiliary air duct 8 and the main air duct 10 at the tail of the handle converges at the air outlet of the nozzle 6 and is ejected together through the air outlet of the nozzle 6.

[0114] By setting an air guide component between the nozzle 6 and the air outlet ring 5, the airflow inside the hair dryer can be guided, improving the airflow effect of the hair dryer and enhancing the user experience.

[0115] like Figures 3 to 6 As shown, the front end of the mounting base 3 mates with the rear end of the air outlet ring 5. For example, the front end of the mounting base 3 has a slot, and the rear end of the air outlet ring 5 is inserted into the slot. A portion of the main air duct 10 at the tail of the handle is formed between the outer wall of the mounting base 3, the outer wall of the air outlet ring 5, and the inner wall of the front shell 1. This portion of the main air duct 10 at the tail of the handle extends in the front-rear direction. The outer wall of the air guide cover 11, the outer wall of the air guide shroud 121, and the inner wall of the nozzle 6 form a connecting ventilation duct. The rear end of the connecting ventilation duct is connected to the air outlet of the main air duct 10 at the tail of the handle, and the front end of the connecting ventilation duct is the air outlet of the nozzle 6.

[0116] Among them, the inner wall of the fixed seat 3, the inner wall of the air outlet ring 5 and the outer wall of the rear cover 4 form a part of the auxiliary air duct 8, and the air guide sleeve 122 forms another part of the auxiliary air duct 8.

[0117] like Figure 5 and Figure 6 As shown, the heating element includes a mica base 13 fitted outside the air outlet ring 5, and a support frame 14 between the mica base 13 and the rear cover 4. An outer mica cylinder is provided between the support frame 14 and the front shell 1, and an inner mica cylinder is provided between the support frame 14 and the air outlet ring 5. Several mica sheets 15 are evenly distributed between the outer mica cylinder and the inner mica cylinder.

[0118] The mica base 13 can be connected to the air outlet ring 5, the support frame 14 can be connected to the fixed base 3, the inner mica tube is connected to the mica base 13, and the outer mica tube is connected to the support frame 14. For example, the mica base 13 is inserted into the air outlet ring 5, and the support frame 14 is connected to the fixed base 3 by screws.

[0119] Among them, the mica sheet 15 can be wound with heating wires to heat the airflow in the main air duct 10 at the tail of the handle.

[0120] Optionally, such as Figure 6 As shown, the hair dryer includes a wall-mounting assembly for mounting the hair dryer. The wall-mounting assembly includes a wall-mounting base 18, a wall-mounting cover 19 connected to the front end of the wall-mounting base 18, and a wall-mounting magnet 20 disposed between the wall-mounting cover 19 and the wall-mounting base 18.

[0121] The wall-mounted base 18 and the wall-mounted cover 19 can be snapped together.

[0122] In use, the wall-mounting assembly is connected to the wall, and the front end of the front shell 1 is magnetically attracted to the wall-mounting magnet 20, thereby hanging the hair dryer on the wall. A housing magnet can be installed at the front end of the front shell 1, and this housing magnet is magnetically attracted to the wall-mounting magnet 20.

[0123] In some embodiments, such as Figure 3 As shown, the handle housing 2 includes an upper handle 21 and a lower handle 22, with a portion of the main air duct 10 at the tail of the handle formed between the upper handle 21 and the lower handle 22. The upper handle 21 and the lower handle 22 are connected. A handle sleeve 23 is fitted over the upper handle 21 and the lower handle 22, and a filter frame 24 is connected to the lower end of the handle sleeve 23. A filter screen 25 is provided inside the filter frame 24.

[0124] By setting up a filter frame 24 and a filter screen 25, the airflow in the main air duct 10 at the tail of the handle is filtered by the filter screen 25 when it flows through the filter screen 25, which can improve the quality of the airflow sprayed by the hair dryer and further improve the user experience.

[0125] The fan assembly includes a fan 28, which is located on the upper side of the filter frame 24.

[0126] Optionally, an air inlet cover 26 is fitted onto the outer wall of the filter frame 24, and an air inlet 9 at the tail of the handle is opened in the air inlet cover 26.

[0127] By placing the air inlet 9 at the tail of the handle on the air inlet cover 26, the airflow enters the handle housing 2 through the air inlet 9 at the tail of the handle and is then filtered by the filter screen 25. This reduces or even eliminates the presence of impurities in the airflow entering the main air duct 10 at the tail of the handle, preventing impurities from damaging the internal components of the hair dryer and thus further improving the reliability of the hair dryer.

[0128] Optionally, the filter holder 24 is magnetically connected to the air inlet cover 26.

[0129] For example, the outer side of the filter frame 24 is provided with an iron sheet, and the inner side of the air inlet cover 26 is provided with a filter magnet, which is magnetically attracted to the iron sheet.

[0130] The filter frame 24 and the air inlet cover 26 are magnetically connected, which facilitates the connection and disassembly of the filter frame 24 and the air inlet cover 26.

[0131] Optionally, such as Figure 3 As shown, the lower ends of the upper handle 21 and the lower handle 22 are connected to the filter frame 24 by a protective sleeve 27 for protecting the power cord.

[0132] The cord sleeve 27 improves the seal between the power cord and the handle housing 2, further enhancing the reliability of the hair dryer.

[0133] When the hair dryer of this embodiment is in use, the user starts the hair dryer and activates the smart mode. Simultaneously, the distance-measuring and temperature-controlling electronics 44 are activated. The light emitted by the electronics 44 passes through the lens 46. The distance-measuring and temperature-controlling electronics 44 is used to measure the distance to the user's head in real time, and this distance information is fed back to the main control unit of the hair dryer. The main control unit controls the airflow reaching the user's head to maintain a constant temperature based on the target temperature and the heating element's temperature. In other words, regardless of the distance between the hair dryer and the user's head, the airflow temperature reaching the hair can be kept constant using the above control principle, thereby effectively increasing the user's comfort.

[0134] When the ranging and temperature control electronics 44 is activated, the infrared rays emitted by the transmitting module pass through the air guide sleeve 122 at a certain angle. After being reflected several times by the inner wall of the air guide sleeve 122, they reach the user's scalp. The infrared rays are then reflected back into the air guide sleeve 122 by the user's scalp, and after being reflected several times by the inner wall of the air guide sleeve 122, they reach the receiving module. This determines the distance between the user's head and the hair dryer. When the distance between the user's head and the hair dryer is greater, the temperature of the heating element is increased; when the distance is closer, the temperature of the heating element is decreased, ensuring that the temperature of the airflow blowing onto the hair remains constant at approximately 50°C.

[0135] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A hair dryer, characterized in that, The device includes a housing, inside which are provided an air guide sleeve and a ranging and temperature control electronic component. The air guide sleeve is through which airflow passes, and the ranging and temperature control electronic component is located on the rear side of the air guide sleeve and is configured corresponding to the air guide sleeve.

2. The hair dryer according to claim 1, characterized in that, The ranging and temperature control electronics include a time-of-flight sensor, and a lens is provided between the ranging and temperature control electronics and the air guide sleeve, the lens being used to filter light.

3. The hair dryer according to claim 2, characterized in that, The rear end of the housing is connected to a rear cover, and the front end of the rear cover is provided with a connecting rod sleeve that extends into the housing. The ranging and temperature control electronics and the lens are both connected to the connecting rod sleeve.

4. The hair dryer according to claim 3, characterized in that, The front end of the connecting rod sleeve is fitted with a connecting box, the ranging and temperature control electronic component is located inside the connecting box, the connecting box has a perforation for the light to pass through, and the lens blocks the perforation.

5. The hair dryer according to claim 3, characterized in that, The centerline of the connecting rod sleeve coincides with the centerline of the air guide sleeve.

6. The hair dryer according to claim 2, characterized in that, The inner wall surface of the air guide sleeve is provided with a reflective layer, or the inner wall surface of the air guide sleeve forms a reflective surface.

7. The hair dryer according to claim 6, characterized in that, The distance between the ranging and temperature control electronic component and the air guide sleeve is 10mm to 13mm.

8. The hair dryer according to claim 1, characterized in that, The housing includes a front housing and a handle housing. The air guide sleeve and the ranging and temperature control electronics are both located inside the front housing, and at least a portion of the air guide sleeve extends forward beyond the front end of the front housing.

9. The hair dryer according to claim 8, characterized in that, The hair dryer also includes a nozzle, which is detachably connected to the front end of the front housing, and the air guide sleeve is connected to the nozzle.

10. The hair dryer according to claim 9, characterized in that, The hair dryer includes an air guide base, which includes an air guide cover and an air guide sleeve. The air guide sleeve is disposed inside the air guide cover and connected to the air guide cover. The air guide cover is connected to the nozzle.

11. The hair dryer according to claim 10, characterized in that, The hair dryer also includes an air guide cover, which is located inside the front shell and behind the air guide seat. The air guide cover is connected to the air guide cover, and a collar is provided inside the air guide cover. The collar is connected to the air guide sleeve.

12. The hair dryer according to claim 10, characterized in that, The air nozzle includes an inner air nozzle and an outer air nozzle. The outer air nozzle is sleeved on the outside of the inner air nozzle and connected to the inner air nozzle. The inner air nozzle and the air guide cover are connected by fasteners.

13. The hair dryer according to claim 12, characterized in that, The rear end of the external air nozzle is sleeved on the front end of the front shell and is interference-fitted with the front shell.

14. The hair dryer according to claim 8, characterized in that, The rear end of the front shell is connected to a rear cover, and a side air inlet is formed between the front shell and the rear cover. An auxiliary air duct communicating with the side air inlet is formed inside the front shell. The lower part of the handle shell is provided with a handle tail air inlet. A handle tail main air duct communicating with the handle tail air inlet is formed inside the front shell and the handle shell. The air outlets of the auxiliary air duct and the handle tail main air duct are both located at the front end of the front shell. The fan assembly is located inside the handle shell.

15. The hair dryer according to claim 14, characterized in that, The air guide sleeve encloses a portion of the side auxiliary air duct.

16. The hair dryer according to claim 3 or 14, characterized in that, The hair dryer includes a control component, at least a portion of which is disposed within the rear cover.

17. The hair dryer according to claim 16, characterized in that, The rear cover forms a mounting cavity, and the control component includes a control circuit board disposed within the mounting cavity.

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