Blowing equipment

Abstract

The utility model discloses air blowing equipment which comprises an air blower body, the air blower body is provided with an air outlet end, and the air outlet end comprises an annular air outlet formed by surrounding a circle along the axis; the distance sensor is arranged on the wall, located in the annular air outlet, of the air outlet end; the air nozzle structure is connected to the air outlet end; the tuyere structure comprises a first shell and a second shell arranged in the first shell in a sleeved mode. An air outlet path communicated with the annular air outlet is formed between the first shell and the second shell; and a cavity is formed in the second shell, so that the distance sensor can sense the distance between the measured body and the air outlet end. The distance sensor is arranged at the air outlet end of the hair dryer body, and the cavity is formed in the air nozzle structure, so that the distance sensor can sense the distance between a measured object and the air outlet end in real time; and moreover, the distance sensor is built in, so that the distance sensor can be protected, and the distance sensor is prevented from being out of order and failure.

Description

Technical Field

[0001] The utility model relates to the technical field of blowing equipment, in particular to a blowing equipment. Background Art

[0002] A hair dryer is a small household appliance that is often used in people's daily lives. It is generally composed of a hair dryer body and a nozzle. The airflow generated by the hair dryer body can be discharged through the nozzle for users to use.

[0003] At present, most of the hair dryers in use cannot automatically make corresponding adjustments according to changes in user usage conditions. The temperature and wind speed of the air outlet of the hair dryer cannot be adjusted automatically, so users need to sense and make corresponding manual adjustments. The hair dryers currently used generally use buttons to manually set the wind speed and temperature level. Regardless of whether there is an object in front of the air outlet of the hair dryer, and regardless of the distance between the object and the hair dryer, if there is no manual operation, it can only be operated at a fixed wind temperature and wind speed level. When the user feels uncomfortable, he can only move the hair dryer away, or manually switch to other levels until he finds a suitable wind temperature and wind speed level; it is very inconvenient to use and the user experience is poor.

[0004] In order to overcome this problem, the prior art will set a distance sensor on the housing of the hair dryer to detect the distance between the object blown by the hair dryer and the hair dryer to realize intelligent control. For example, CN213882115U- discloses a hair dryer, including a housing, a button, a fan, a motor, a heating element and a control circuit board, wherein the fan, the motor, the heating element and the control circuit board are arranged in the housing, and the button is arranged on the lower handle of the housing; the button, the motor and the heating element are electrically connected to the motor respectively; it is characterized in that it also includes a distance sensor arranged on the outer side of the housing, and one of the distance sensors is arranged on the upper and lower sides of the housing respectively; the distance sensor is electrically connected to the control circuit board, and the distance from the hair dryer to the object can be obtained in real time through the distance sensor, so that the working power can be adjusted in real time through the control circuit board according to the distance. However, the above structure sets the distance sensor on the housing of the hair dryer, exposing the distance sensor to the outside, and long-term use will cause the distance sensor to malfunction, fail, and other problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem to be solved by the utility model is to provide a hair-drying device, which arranges a distance sensor at the air outlet end of the hair dryer body and arranges a cavity on the air nozzle structure so that the distance sensor can sense the distance between the object to be measured and the air outlet end; and the distance sensor is built-in to protect the distance sensor and prevent the distance sensor from malfunctioning or failing.

[0007] (II) Technical solution

[0008] The solution adopted by the utility model to solve the above technical problems is a blowing device, which includes

[0009] The hair dryer body has an air outlet end, wherein the air outlet end includes an annular air outlet formed around the axis;

[0010] A distance sensor, which is arranged on a wall of the air outlet end located inside the annular air outlet;

[0011] A nozzle structure is connected to the air outlet; the nozzle structure includes a first shell and a second shell mounted inside the first shell; an air outlet path that passes through the annular air outlet is formed between the first shell and the second shell; wherein a cavity is arranged inside the second shell so that the distance sensor can sense the distance between the measured object and the air outlet.

[0012] Optionally, the distance sensor is one or more of an infrared ranging sensor, a radar ranging sensor or a laser ranging sensor.

[0013] By adopting the above scheme, a distance sensor is set at the air outlet end of the hair dryer body, and a cavity is set on the nozzle structure, so that the distance sensor can sense the distance between the object to be measured and the air outlet end; and, the distance sensor is built-in to protect the distance sensor and prevent the distance sensor from malfunctioning or failing.

[0014] In some embodiments, the second shell includes a first end and a second end arranged along the air outlet path, and the cavity is formed between the first end and the second end; the first end is connected to the air outlet end; and the cross-sectional size of the cavity gradually decreases from the first end to the second end.

[0015] In some embodiments, the first end has a first opening, and the distance sensor is disposed on a wall of the air outlet end located within the first opening; the second end has a second opening, and the size of the second opening is larger than the size of the distance sensor.

[0016] In some embodiments, the first opening and the second opening are circular structures and are coaxially arranged.

[0017] By adopting the above solution, the sensing of the distance sensor is not limited by the outside, and the distance between the measured object and the air outlet end can be sensitively sensed.

[0018] In some embodiments, a first connection portion is disposed on an outer wall of the second shell, and a second connection portion is disposed on an inner wall of the first shell, and the first connection portion and the second connection portion can be relatively connected together.

[0019] In some embodiments, the first connecting portion includes a mounting groove, and the second connecting portion includes a boss, and the boss can be adapted to the mounting groove to achieve a connection between the first connecting portion and the second connecting portion; and the mounting groove and the boss are fixed together by screws, so that the first shell and the second shell can be firmly locked together.

[0020] In some embodiments, the air outlet end includes a first wall arranged in a ring, and a second wall arranged in a ring within the first wall; the annular air outlet is formed between the first wall and the second wall; wherein the first shell is connected to the first wall, and the second shell is connected to the second wall.

[0021] In some embodiments, a plurality of connecting walls are disposed between the first wall and the second wall, and each of the connecting walls is arranged at intervals, so that the airflow blown out from the annular air outlet is stronger and the blowing effect is better.

[0022] In some embodiments, the first shell includes a first magnetic structure, the first wall includes a second magnetic structure, and the first magnetic structure and the second magnetic structure are arranged opposite to each other and can be magnetically connected.

[0023] In some embodiments, the portions of the first wall and the first shell that are opposite to each other are recessed in directions away from each other to respectively accommodate the second magnetic structure and the first magnetic structure, so that the outer surfaces of the second magnetic structure and the first magnetic structure are flush with the first wall and the first shell, thereby making the connection of the nozzle structure on the air outlet end of the hair dryer body more stable and more beautiful.

[0024] By adopting the above scheme, the first magnetic structure is arranged in a ring on the first shell, and the second magnetic structure is arranged in a ring on the first wall. When the nozzle structure is assembled to the air outlet end of the hair dryer body, the first magnetic structure and the second magnetic structure are magnetically connected so that the nozzle structure and the hair dryer body are firmly locked together and will not detach during use.

[0025] In some embodiments, the first shell includes an inner shell and an outer shell that are detachably connected; the air outlet path is formed between the inner shell and the second shell; wherein the inner shell and the outer shell are spaced apart and form a heat-insulating space.

[0026] In some embodiments, a plurality of first snap-in blocks are formed on a protrusion on the outer wall of the inner shell, and a plurality of second snap-in blocks are formed on a protrusion on the inner wall of the outer shell. The first snap-in blocks and the second snap-in blocks are arranged vertically relative to each other, and the first snap-in block is provided with a plurality of snap-in grooves capable of engaging with the second snap-in blocks so as to lock the inner shell and the outer shell together. At the same time, a first snap-in portion is provided on the outer wall of the inner shell, and a second snap-in portion is provided on the inner wall of the outer shell. The locking between the inner shell and the outer shell can be improved by the snap connection between the first snap-in portion and the second snap-in portion.

[0027] In some embodiments, an open end is provided on the side of the insulation space away from the air outlet end so that the insulation space is connected to the outside world. This structure can dissipate the heat in the air outlet path to the outside world and reduce the temperature of the outer shell, which can effectively prevent burns during use.

[0028] In some embodiments, the second wall is recessed in a direction away from the nozzle structure to form an annular recess capable of engaging with the second shell.

[0029] By adopting the above scheme, the setting of the annular recess can firmly clamp the second shell on the second wall to achieve fixed installation of the second shell on the air outlet end of the hair dryer body, thereby improving the stability of the entire nozzle structure on the air outlet end of the hair dryer body and improving the stability of use.

[0030] In some embodiments, the air outlet end includes a mounting wall located within the annular air outlet, the mounting wall is provided with a mounting opening for installing the distance sensor; and the mounting wall is provided with a locking portion for locking the distance sensor around the mounting opening.

[0031] In some embodiments, the mounting wall is engaged with the first wall, and an annular recess is formed between the mounting wall recess and the second wall to engage with the second shell.

[0032] According to the above solution, the locking portion is formed on the side of the installation wall away from the nozzle structure and located around the installation opening to lock the distance sensor on the installation wall.

[0033] In some embodiments, the blowing device also includes a control circuit board electrically connected to the distance sensor, and a heating component electrically connected to the control circuit board; the control circuit board can receive the distance signal detected by the distance sensor and control the working state of the heating component.

[0034] In some embodiments, the control circuit board and the heating assembly are disposed within the hair dryer body.

[0035] By adopting the above scheme, the distance sensor detects the distance between the air outlet end of the hair dryer body and the hair of the person being measured through the cavity of the second shell; and, when the distance sensor detects that the distance between the air outlet end and the hair of the person being measured becomes closer, the distance sensor will give a signal to the control circuit board, and the control circuit board will control the temperature of the heating component to decrease, so that the wind blown out of the air outlet end is slightly hot wind, and the user does not need to worry about the air outlet end being too close to the hair and scalding the hair when using the hair dryer; when the distance sensor detects that the distance between the air outlet end and the hair of the person being measured becomes farther, the distance sensor will give a signal to the control circuit board, and the control circuit board will control the temperature of the heating component to increase, so that the wind blown out of the air outlet end is strongly hot wind, and the user does not need to worry about the air outlet end being too far away from the hair and the temperature being too low, resulting in poor hair blowing effect when using the hair dryer.

[0036] In some embodiments, a fan assembly is also provided in the hair dryer body, and the fan assembly is electrically connected to the control circuit board; and when the distance sensor detects that the distance between the air outlet and the hair of the person being measured becomes closer, the distance sensor will give a signal to the control circuit board, and the control circuit board will control the wind speed of the fan assembly to decrease, so that the wind blown out of the air outlet is a breeze, and the user does not need to worry about the air outlet being too close to the hair and damaging the hair when using the hair dryer; when the distance sensor detects that the distance between the air outlet and the hair of the person being measured becomes farther, the distance sensor will give a signal to the control circuit board, and the control circuit board will control the wind speed of the fan assembly to increase, so that the wind blown out of the air outlet is a strong wind, and the user does not need to worry about the air outlet being too far away from the hair and the wind speed being too low, resulting in poor hair blowing effect when using the hair dryer.

[0037] (III) Beneficial effects

[0038] Compared with the prior art, the utility model designs a blowing device.

[0039] (1) The utility model sets a distance sensor at the air outlet end of the hair dryer body and sets a cavity on the air nozzle structure, so that the distance sensor can sense the distance between the measured object and the air outlet end in real time; and the distance sensor is built-in to protect the distance sensor and prevent the distance sensor from malfunctioning or failing;

[0040] (2) The utility model arranges the first magnetic attraction structure in an annular manner on the first shell, and the second magnetic attraction structure in an annular manner on the first wall. When the air nozzle structure is assembled to the air outlet end of the hair dryer body, the first magnetic attraction structure and the second magnetic attraction structure are magnetically connected, so that the air nozzle structure and the hair dryer body are firmly locked together and will not separate during use;

[0041] (3) The utility model can detect the distance between the air outlet end of the hair dryer body and the hair of the person being measured in real time through the distance sensor. When the distance becomes closer, the control circuit board will control the temperature of the heating component and the wind speed of the fan component to decrease to prevent hair burns; when the distance becomes farther, the control circuit board will control the temperature of the heating component and the wind speed of the fan component to increase to improve the effect of blowing hair. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 This is a structural schematic diagram of a blowing device of the utility model;

[0044] Figure 2 This is an exploded view of a blowing device of the utility model;

[0045] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0046] Figure 4 It is a structural schematic diagram of the air nozzle structure of the utility model;

[0047] Figure 5 It is an exploded schematic diagram of the air nozzle structure of the utility model;

[0048] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0049] Figure 7 for Figure 5The enlarged schematic diagram at C in the middle;

[0050] Figure 8 for Figure 5 The enlarged schematic diagram at D in the middle;

[0051] Fig. 9 It is a schematic diagram of an explosion from another angle of the air nozzle structure of the utility model;

[0052] Fig.10 for Fig. 9 The enlarged schematic diagram at E in the middle;

[0053] Fig.11 for Fig. 9 The enlarged schematic diagram at F in the middle;

[0054] Fig.12 It is a cross-sectional view of the air nozzle structure of the utility model;

[0055] Fig.13 for Fig.12 The enlarged schematic diagram of G in the middle;

[0056] Fig.14 It is a cross-sectional view of the air nozzle structure of the utility model;

[0057] Fig.15 for Fig.14 The enlarged schematic diagram at H in the middle;

[0058] Fig.16 for Fig.14 The enlarged schematic diagram at I in the middle;

[0059] Fig.17 It is a cutaway view of the air nozzle structure of the utility model;

[0060] Fig.18 for Fig.17 Enlarged schematic diagram at J in the middle.

[0061] The names of the components corresponding to the reference numerals in the figure are: 100, hair dryer body; 10, air outlet; 101, first wall; 101a, second magnetic attraction structure; 102, second wall; 102a, annular recess; 103, mounting wall; 103a, mounting port; 103b, engaging portion; 104, connecting wall; 11, annular air outlet; 200, distance sensor; 300, nozzle structure; 30, first shell; 301, second connecting portion; 301a, boss; 302, first magnetic attraction structure; 303, inner shell; 30 3a, first clamping block; 303b, clamping groove; 303c, first clamping part; 304, outer shell; 304a, second clamping block; 304b, second clamping part; 305, heat insulation space; 305a, opening end; 31, second shell; 311, cavity; 312, first end; 312a, first opening; 313, second end; 313a, second opening; 314, first connecting part; 314a, mounting groove; 400, air outlet path; 500, control circuit board; 600, heating assembly; 700, fan assembly. DETAILED DESCRIPTION

[0062] The following is a further detailed description of the specific implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0063] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0065] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0066] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0067] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0068] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0069] like Figure 1-Figure 18As shown, the utility model provides a blowing device, the blowing device includes a hair dryer body 100, which has an air outlet 10, and the air outlet 10 includes an annular air outlet 11 formed around an axis; a distance sensor 200, which is arranged on the wall of the air outlet 10 located inside the annular air outlet 11; a nozzle structure 300, which is connected to the air outlet 10; the nozzle structure 300 includes a first shell 30, and a second shell 31 sleeved in the first shell 30; an air outlet path 400 that passes through the annular air outlet 11 is formed between the first shell 30 and the second shell 31; wherein a cavity 311 is arranged inside the second shell 31, so that the distance sensor 200 can sense the distance between the measured object and the air outlet 10. Optionally, the distance sensor 200 is one or more of an infrared ranging sensor, a radar ranging sensor or a laser ranging sensor. By adopting the above scheme, a distance sensor 200 is set at the air outlet end 10 of the hair dryer body 100, and a cavity 311 is set on the nozzle structure 300, so that the distance sensor 200 can sense the distance between the object to be measured and the air outlet end 10; and, the distance sensor 200 is built-in, which can protect the distance sensor 200 and prevent the distance sensor 200 from malfunctioning or failing.

[0070] In some embodiments, the second housing 31 includes a first end 312 and a second end 313 arranged along the air outlet path 400, and the cavity 311 is formed between the first end 312 and the second end 313; the first end 312 is connected to the air outlet end 10; and the size of the cross section of the cavity 311 gradually decreases from the first end 312 to the second end 313. In some embodiments, the first end 312 has a first opening 312a, and the distance sensor 200 is arranged on the wall of the air outlet end 10 located in the first opening 312a; the second end 313 has a second opening 313a, and the size of the second opening 313a is larger than the size of the distance sensor 200. In some embodiments, the first opening 312a and the second opening 313a are circular structures and are coaxially arranged. By adopting the above scheme, the sensing of the distance sensor 200 is not limited relative to the outside, and can sensitively sense the distance between the measured object and the air outlet end 10.

[0071] In some embodiments, a first connection portion 314 is provided on the outer wall of the second shell 31, and a second connection portion 301 is provided on the inner wall of the first shell 30, and the first connection portion 314 and the second connection portion 301 can be connected relative to each other. In some embodiments, the first connection portion 314 includes a mounting groove 314a, and the second connection portion 301 includes a boss 301a, and the boss 301a can be adapted to the mounting groove 314a to achieve the connection between the first connection portion 314 and the second connection portion 301; and the mounting groove 314a and the boss 301a are fixed together by screws, so that the first shell 30 and the second shell 31 can be firmly locked together. In some embodiments, the air outlet 10 includes a first wall 101 arranged in an annular manner, and a second wall 102 arranged in an annular manner inside the first wall 101; the annular air outlet 11 is formed between the first wall 101 and the second wall 102; wherein, the first shell 30 is connected to the first wall 101, and the second shell 31 is connected to the second wall 102. In some embodiments, a plurality of connecting walls 104 are provided between the first wall 101 and the second wall 102, and each of the connecting walls 104 is arranged at intervals, so that the airflow blown out by the annular air outlet 11 is stronger and the blowing effect is better. In some embodiments, the first shell 30 includes a first magnetic structure 302, the first wall 101 includes a second magnetic structure 101a, the first magnetic structure 302 and the second magnetic structure 101a are arranged relative to each other and can be magnetically connected. In some embodiments, the relative parts of the first wall 101 and the first shell 30 are recessed in directions away from each other to accommodate the second magnetic structure 101a and the first magnetic structure 302, respectively, so that the outer surfaces of the second magnetic structure 101a and the first magnetic structure 302 are flush with the first wall 101 and the first shell 30, so that the connection of the nozzle structure 300 on the air outlet end 10 of the hair dryer body 100 is more stable and more beautiful. By adopting the above scheme, the first magnetic structure 302 is arranged in a ring on the first shell 30, and the second magnetic structure 101a is arranged in a ring on the first wall 101. When the nozzle structure 300 is assembled to the air outlet end 10 of the hair dryer body 100, the first magnetic structure 302 and the second magnetic structure 101a are magnetically connected so that the nozzle structure 300 and the hair dryer body 100 are firmly locked together and will not separate during use.

[0072] In some embodiments, the first shell 30 includes an inner shell 303 and an outer shell 304 that are detachably connected; the air outlet path 400 is formed between the inner shell 303 and the second shell 31; wherein the inner shell 303 and the outer shell 304 are arranged at intervals and form a heat-insulating space 305. In some embodiments, a plurality of first snap-in blocks 303a are protruded on the outer wall of the inner shell 303, and a plurality of second snap-in blocks 304a are protruded on the inner wall of the outer shell 304. The first snap-in blocks 303a and the second snap-in blocks 304a are arranged vertically relative to each other, and the first snap-in block 303a is provided with a plurality of snap-in grooves 303b that can engage with the second snap-in blocks 304a so as to lock the inner shell 303 and the outer shell 304 together. At the same time, a first snap-in portion 303c is provided on the outer wall of the inner shell 303, and a second snap-in portion 304b is provided on the inner wall of the outer shell 304. Through the snap connection between the first snap-in portion 303c and the second snap-in portion 304b, the locking between the inner shell 303 and the outer shell 304 can be improved. In some embodiments, the side of the heat-insulating space 305 away from the air outlet 10 is provided with an open end 305a so that the heat-insulating space 305 is connected to the outside. The use of this structure can dissipate the heat in the air outlet path 400 to the outside, and can reduce the temperature of the outer shell 304, which can effectively prevent burns during use. In some embodiments, the second wall 102 is recessed in the direction away from the air nozzle structure 300 to form an annular recess 102a that can engage the second shell 31. With the above solution, the setting of the annular recess 102a can firmly engage the second shell 31 on the second wall 102, so as to achieve the fixed installation of the second shell 31 on the air outlet 10 of the hair dryer body 100, thereby improving the stability of the entire air nozzle structure 300 on the air outlet 10 of the hair dryer body 100 and improving the stability of use. In some embodiments, the air outlet 10 includes a mounting wall 103 located in the annular air outlet 11, and the mounting wall 103 is provided with a mounting opening 103a for mounting the distance sensor 200; and the mounting wall 103 is provided with a clamping portion 103b for clamping the distance sensor 200 at the periphery of the mounting opening 103a. In some embodiments, the mounting wall 103 is clamped on the first wall 101, and the annular recess 102a is formed between the recess of the mounting wall 103 and the second wall 102 to clamp the second housing 31. With the above solution, the clamping portion 103b is formed at the periphery of the mounting opening 103a on the side of the mounting wall 103 away from the air nozzle structure 300 to lock the distance sensor 200 on the mounting wall 103.

[0073] In some embodiments, the hair dryer further comprises a control circuit board 500 electrically connected to the distance sensor 200, and a heating assembly 600 electrically connected to the control circuit board 500; the control circuit board 500 is capable of receiving a distance signal detected by the distance sensor 200 and controlling a working state of the heating assembly 600. In some embodiments, the control circuit board 500 and the heating assembly 600 are disposed in the hair dryer body 100. With the above scheme, the distance sensor 200 detects the distance between the air outlet 10 of the hair dryer body 100 and the hair of the person being tested through the cavity 311 of the second shell 31; and, when the distance sensor 200 detects that the distance between the air outlet 10 and the hair of the person being tested becomes closer, the distance sensor 200 will give a signal to the control circuit board 500, and the control circuit board 500 will control the temperature of the heating component 600 to decrease, so that the wind blown out of the air outlet 10 is slightly hot wind, and the user does not need to worry about the air outlet 10 being too close to the hair and scalding the hair when using the hair dryer; when the distance sensor 200 detects that the distance between the air outlet 10 and the hair of the person being tested becomes farther, the distance sensor 200 will give a signal to the control circuit board 500, and the control circuit board 500 will control the temperature of the heating component 600 to increase, so that the wind blown out of the air outlet 10 is strongly hot wind, and the user does not need to worry about the air outlet 10 being too far away from the hair and the temperature being too low, resulting in poor hair blowing effect when using the hair dryer. In some embodiments, a fan assembly 700 is further provided in the hair dryer body 100, and the fan assembly 700 is electrically connected to the control circuit board 500; and, when the distance sensor 200 detects that the distance between the air outlet end 10 and the hair of the person being measured becomes closer, the distance sensor 200 will give a signal to the control circuit board 500, and the control circuit board 500 will control the wind speed of the fan assembly 700 to decrease, so that the wind blown out of the air outlet end 10 is a breeze, and the user does not need to worry about the air outlet end 10 being too close to the hair and damaging the hair when using the hair dryer; when the distance sensor 200 detects that the distance between the air outlet end 10 and the hair of the person being measured becomes farther, the distance sensor 200 will give a signal to the control circuit board 500, and the control circuit board 500 will control the wind speed of the fan assembly 700 to increase, so that the wind blown out of the air outlet end 10 is a strong wind, and the user does not need to worry about the air outlet end 10 being too far away from the hair and the wind speed being too low, resulting in poor hair blowing effect when using the hair dryer.

[0074] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0075] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A blowing device, characterized in that: The blowing device comprises A hair dryer body (100) having an air outlet end (10), wherein the air outlet end (10) comprises an annular air outlet (11) formed around an axis; A distance sensor (200) is arranged on a wall of the air outlet end (10) located inside the annular air outlet (11); A nozzle structure (300) is connected to the air outlet end (10); the nozzle structure (300) comprises a first shell (30) and a second shell (31) sleeved in the first shell (30); an air outlet path (400) that passes through the annular air outlet (11) is formed between the first shell (30) and the second shell (31); a cavity (311) is provided inside the second shell (31) so that the distance sensor (200) can sense the distance between the object to be measured and the air outlet end (10).

2. The blowing device according to claim 1, characterized in that: The second shell (31) comprises a first end (312) and a second end (313) arranged along the air outlet path (400), and the cavity (311) is formed between the first end (312) and the second end (313); the first end (312) is connected to the air outlet end (10); and the size of the cross section of the cavity (311) gradually decreases from the first end (312) to the second end (313).

3. The blowing device according to claim 2, characterized in that: The first end (312) has a first opening (312a), and the distance sensor (200) is arranged on a wall of the air outlet end (10) located inside the first opening (312a); the second end (313) has a second opening (313a), and the size of the second opening (313a) is larger than the size of the distance sensor (200).

4. The blowing device according to claim 1, characterized in that: A first connecting portion (314) is provided on the outer wall of the second shell (31), and a second connecting portion (301) is provided on the inner wall of the first shell (30), and the first connecting portion (314) and the second connecting portion (301) can be relatively connected together.

5. The blowing device according to claim 1, characterized in that: The air outlet end (10) comprises a first wall (101) arranged in an annular shape, and a second wall (102) arranged in an annular shape within the first wall (101); the annular air outlet (11) is formed between the first wall (101) and the second wall (102); wherein the first shell (30) is connected to the first wall (101), and the second shell (31) is connected to the second wall (102).

6. The blowing device according to claim 5, characterized in that: The first shell (30) includes a first magnetic attraction structure (302), the first wall (101) includes a second magnetic attraction structure (101a), and the first magnetic attraction structure (302) and the second magnetic attraction structure (101a) are arranged opposite to each other and can be connected by magnetic attraction.

7. The blowing device according to claim 6, characterized in that: The first shell (30) comprises an inner shell (303) and an outer shell (304) which are detachably connected; the air outlet path (400) is formed between the inner shell (303) and the second shell (31); wherein the inner shell (303) and the outer shell (304) are arranged at an interval and form a heat-insulating space (305).

8. The blowing device according to claim 5, characterized in that: The second wall (102) is recessed in a direction away from the nozzle structure (300) to form an annular recess (102a) capable of engaging with the second shell (31).

9. The blowing device according to claim 1, characterized in that: The air outlet end (10) comprises a mounting wall (103) located inside the annular air outlet (11); the mounting wall (103) is provided with a mounting opening (103a) for mounting the distance sensor (200); and the mounting wall (103) is provided with a snap-fitting portion (103b) for snap-fitting the distance sensor (200) around the mounting opening (103a).

10. The blowing device according to claim 1, characterized in that: The blowing device further comprises a control circuit board (500) electrically connected to the distance sensor (200), and a heating component (600) electrically connected to the control circuit board (500); the control circuit board (500) is capable of receiving a distance signal detected by the distance sensor (200) and controlling the working state of the heating component (600).

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