Hair drier

Abstract

The utility model relates to the field of hair driers, and provides a hair dryer which comprises an air duct and a shell, the air duct comprises a first duct body, a second duct body and a third duct body, the second duct body is arranged on the inner side of the first duct body, a first air duct is formed between the first duct body and the second duct body, and a heating assembly is arranged in the first air duct; the third barrel is arranged on the inner side of the second barrel, a second air duct is formed between the second barrel and the third barrel, a third air duct is formed in the third barrel, and an essential oil module is arranged in the third air duct; the shell comprises a handle body, the handle body is arranged on the outer side wall of the first barrel, and a motor assembly is arranged in the handle body and communicates with the first air channel. According to the hair drier, the first barrel body, the second barrel body and the third barrel body are arranged in the sleeved mode to form the first air channel, the second air channel and the third air channel, the essential oil module is arranged in the third air channel, air flow in the third air channel blows essential oil in the essential oil module to hair, the hair is maintained in the hair blowing process, and the hair drier is simple and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryers, and further relates to a hair dryer. Background Art

[0002] At present, people need to use hair care essential oil additionally after blowing their hair to help repair damaged hair and reduce dryness and split ends. However, the whole hair washing and care process is cumbersome and time-consuming, which cannot meet people's needs for simple and fast hair blowing and care. Summary of the Utility Model

[0003] Aiming at the above technical problems, the purpose of the utility model is to provide a hair dryer. The first cylinder, the second cylinder and the third cylinder are sleeved with each other to form a first air duct, a second air duct and a third air duct. An essential oil module is arranged in the third air duct, and the air flow in the third air duct blows the essential oil in the essential oil module onto the hair to care for the hair during the hair blowing process, which is simple and convenient.

[0004] To achieve the above purpose, the utility model provides a hair dryer, which includes a barrel and a housing. The barrel includes a first cylinder, a second cylinder and a third cylinder. The second cylinder is arranged inside the first cylinder. A first air duct is formed between the first cylinder and the second cylinder, and a heating component is arranged in the first air duct. The third cylinder is arranged inside the second cylinder. A second air duct is formed between the second cylinder and the third cylinder, and a third air duct is formed inside the third cylinder. An essential oil module is arranged in the third air duct.

[0005] The housing includes a handle body, which is arranged on the outer side wall of the first cylinder. A motor component is arranged inside the handle body and is communicated with the first air duct.

[0006] In some embodiments, the first cylinder is coaxially arranged outside the second cylinder. A first accommodation cavity is formed between the first cylinder and the second cylinder. A first air inlet is arranged on the side wall of the first accommodation cavity, and the first air inlet is communicated with the handle body. A first air outlet is also arranged on one side of the first accommodation cavity to form the first air duct.

[0007] The third cylinder is arranged on the inner side wall of the second cylinder. A second accommodation cavity is formed between the second cylinder and the third cylinder, and the second accommodation cavity axially penetrates to form the second air duct.

[0008] A third accommodation cavity is arranged inside the third cylinder. One side of the third accommodation cavity is communicated with the first accommodation cavity, and a third air outlet is arranged on the other side of the third accommodation cavity to form the third air duct.

[0009] In some embodiments, a second air inlet hole is further provided on the outer side wall of the second cylinder body. The second air inlet hole is connected through to the first accommodation cavity and the third accommodation cavity, so that the third air duct is communicated with the first air duct.

[0010] In some embodiments, the housing further includes an outer shell and a rear cover. The outer shell is sleeved outside the air cylinder, and the rear cover is adapted to cover the sides of the first cylinder body and the second cylinder body away from the first air outlet;

[0011] An assembly groove is further provided at one end of the second cylinder body away from the first air outlet, and a first air inlet groove is provided at the bottom of the assembly groove;

[0012] A wind guiding member is further included. The wind guiding member is provided with a first clamping groove, a second clamping groove and a second air inlet groove. The first clamping groove is adapted to clamp the groove wall of the assembly groove, the second clamping groove is adapted to clamp the side wall of the rear cover, and the second air inlet groove is adapted to form the second air inlet hole with the first air inlet groove.

[0013] In some embodiments, an installation wall is further provided inside the third cylinder body. The third cylinder body forms the third accommodation cavity on one side of the installation wall, and the third air outlet and the first air outlet are located on the same side of the air cylinder;

[0014] A third air inlet hole is provided on the installation wall, and the third air inlet hole communicates with the second air inlet hole.

[0015] In some embodiments, the essential oil module includes a first housing, a second housing and an essential oil module. Both the first housing and the second housing are open on one side, and the first housing and the second housing are adapted to be clamped relatively;

[0016] The essential oil module is arranged between the first housing and the second housing. A first ventilation hole is provided on the first housing, and the first ventilation hole communicates with the third air inlet hole. A second ventilation hole communicating with the first ventilation hole is provided on the second housing.

[0017] In some embodiments, a first magnetic attraction member is further provided on the installation wall, and a second magnetic attraction member is further provided inside the first housing. The first magnetic attraction member is adapted to attract the second magnetic attraction member, so that the essential oil module is detachably installed in the third accommodation cavity.

[0018] In some embodiments, the installation wall is relatively located in the middle of the axis of the first cylinder body and on the central axis of the handle body. The third cylinder body forms a fifth accommodation cavity on the other side of the installation wall, and a display module is further provided in the fifth accommodation cavity;

[0019] The second air inlet hole is provided on the side wall of the fifth accommodation cavity and away from the mounting wall. A display cavity is provided in the display module, and the display cavity is adapted to communicate with the second air inlet hole and the first ventilation hole.

[0020] In some embodiments, the display module includes a third housing, a circuit board, a display screen, and a display board. At least part of the third housing is adapted to be fixed in the fifth accommodation cavity. The display cavity is provided in the third housing. A third ventilation hole communicating with the second air inlet hole is provided on the outer side wall of the third housing, and a fourth ventilation hole communicating with the third air inlet hole is provided at the bottom of the third housing. The circuit board and the display screen are arranged at one end of the display cavity away from the mounting wall, and the display board covers the outside of the display screen.

[0021] In some embodiments, the third cylinder is arranged at the bottom of the inner side wall of the second cylinder, so that the second air duct is in a crescent shape;

[0022] Both axial ends of the display module and the essential oil module do not extend beyond the axial ends of the outer shell of the housing.

[0023] Compared with the prior art, the hair dryer provided by the present utility model has at least one of the following beneficial effects:

[0024] 1. The first cylinder, the second cylinder, and the third cylinder are sleeved with each other to form a first air duct, a second air duct, and a third air duct. An essential oil module is provided in the third air duct, and the air flow in the third air duct blows the essential oil in the essential oil module onto the hair to care for the hair during the hair drying process, which is simple and convenient.

[0025] 2. Part of the hot air flow in the first air duct reaches the third accommodation cavity through the second air inlet hole and heats the essential oil module in the essential oil module to improve the volatilization efficiency of the essential oil module.

[0026] 3. A diversion groove is further provided on the inner side wall of the second cylinder at the first air inlet groove. The diversion groove is recessed toward the side away from the central axis of the second cylinder, so that the air flow in the second air duct can better pass through the second air inlet hole, and prevent the inner side wall of the second cylinder from abutting against the outer side wall of the fourth housing of the display module, resulting in the air flow being unable to reach the display cavity after passing through the third ventilation hole of the third housing.

[0027] 4. The second air duct is in a crescent shape, and the third cylinder is cylindrical, so that the overall shape of the hair dryer is in the shape of the sun and the moon, which is more beautiful; and both axial ends of the display module and the essential oil module do not extend beyond the axial ends of the outer shell of the housing, and the overall shape is more harmonious. Description of the Drawings

[0028] The following will further illustrate the above characteristics, technical features, advantages and their implementation manners of the present utility model in a clear and understandable manner in conjunction with the accompanying drawings.

[0029] Figure 1 is an overall view of a hair dryer;

[0030] Figure 2 is a structural diagram of the air duct;

[0031] Figure 3 is a structural diagram of the air duct from another perspective;

[0032] Figure 4 is a sectional view of a hair dryer;

[0033] Figure 5 is a position diagram of the second air inlet;

[0034] Figure 6 is a structural diagram of the second air inlet;

[0035] Figure 7 is a flow path diagram of the third air duct;

[0036] Figure 8 is an exploded view of the essential oil module;

[0037] Figure 9 is an exploded view of the display module.

[0038] Explanation of the reference numerals in the drawings:

[0039] Air duct 1, first cylinder body 11, first accommodation cavity 110, first air duct 111, first air inlet 112, first air outlet 113, heating component 114, second cylinder body 12, second accommodation cavity 120, second air duct 121, second air inlet hole 122, assembly groove 123, first air inlet groove 1231, diversion groove 1232, air guiding member 124, first clamping groove 1241, second clamping groove 1242, second air inlet groove 1243, third cylinder body 13, third accommodation cavity 130, third air duct 131, third air outlet 132, installation wall 133, third air inlet hole 1331, fifth accommodation cavity 134, housing 2, handle body 21, outer shell 22, rear cover 23, essential oil module 3, first housing 31, first ventilation hole 311, second housing 32, second ventilation hole 321, essential oil module 33, first magnetic attracting member 34, second magnetic attracting member 35, display module 4, third housing 41, third ventilation hole 411, fourth ventilation hole 412, circuit board 42, display screen 43, display board 44, fourth housing 45. Specific embodiments

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will describe the specific embodiments of the present invention with reference to the accompanying drawings. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and other embodiments can also be obtained.

[0041] To make the drawings concise, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, for components with the same structure or function, only one of them is schematically shown, or only one of them is labeled. In this article, "one" not only means "only this one", but also can mean "more than one" situation.

[0042] It should also be further understood that the term "and / or" used in the description of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0043] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0044] In addition, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined according to needs. The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

[0045] Reference Figures 1 to 3, the present utility model provides a hair dryer, which includes a wind barrel 1 and a housing 2. The wind barrel 1 includes a first barrel body 11, a second barrel body 12 and a third barrel body 13. The second barrel body 12 is arranged inside the first barrel body 11. A first air duct 111 is formed between the first barrel body 11 and the second barrel body 12, and a heating component 114 is arranged in the first air duct 111; the third barrel body 13 is arranged inside the second barrel body 12. A second air duct 121 is formed between the second barrel body 12 and the third barrel body 13, and a third air duct 131 is formed inside the third barrel body 13. An essential oil module 3 is arranged in the third air duct 131; the housing 2 includes a handle body 21, and the handle body 21 is arranged on the outer side wall of the first barrel body 11. A motor assembly is arranged inside the handle body 21 and is communicated with the first air duct 111.

[0046] In this embodiment, the first barrel body 11, the second barrel body 12 and the third barrel body 13 are sleeved with each other to form the first air duct 111, the second air duct 121 and the third air duct 131. The essential oil module 3 is arranged in the third air duct 131, and the air flow in the third air duct 131 blows the essential oil in the essential oil module 3 onto the hair to maintain the hair during the hair drying process, which is simple and convenient.

[0047] Specifically, the first cylinder 11 is coaxially arranged outside the second cylinder 12. A first accommodation cavity 110 is formed between the first cylinder 11 and the second cylinder 12. A first air inlet 112 is provided on the side wall of the first accommodation cavity 110. The first air inlet 112 is communicated with the handle body 21. A first air outlet 113 is further provided on one side of the first accommodation cavity 110 to form a first air duct 111. The motor assembly in the handle body 21 generates air flow, which enters the first accommodation cavity 110 through the first air inlet 112, is heated by the heating assembly 114, and then is blown out from the first air outlet 113. The third cylinder 13 is arranged on the inner side wall of the second cylinder 12. A second accommodation cavity 120 is formed between the second cylinder 12 and the third cylinder 13. The second accommodation cavity 120 axially penetrates to form a second air duct 121. After being blown out from the first air duct 111, negative-pressure air is formed at the first air outlet 113, and the outside air flow flows from one side to the other side through the second accommodation cavity 120 to form the second air duct 121. A third accommodation cavity 130 is provided inside the third cylinder 13. One side of the third accommodation cavity 130 is communicated with the first accommodation cavity 110, and a third air outlet 132 is provided on the other side of the third accommodation cavity 130 to form a third air duct 131. The first air duct 111, the second air duct 121, and the third air duct 131 are arranged in the same direction. It should be noted that in this embodiment, the third accommodation cavity 130 is communicated with the first accommodation cavity 110, and the first accommodation cavity 110 and the third accommodation cavity 130 are communicated with each other through the second air inlet hole 122. The hot air flow of the first air duct 111 reaches the inside of the third accommodation cavity 130 through the second air inlet hole 122, and the essential oil module 33 in the essential oil module 3 is dissipated and blown to the hair through the third air outlet 132. In a variant embodiment, both ends of the third accommodation cavity 130 can also be penetrated, that is, the air flow on one side of the hair dryer 1 reaches the essential oil module 3 through the opening on one side of the third accommodation cavity 130 and then flows out at the third air outlet 132. Even the third accommodation cavity 130 can be communicated with the second accommodation cavity 120, so that the third air duct 131 is communicated with the second air duct 121. It can also be said that the air flow of the second air duct 121 forms the third air duct 131 through the third accommodation cavity 130. As long as the third air duct 131 can take out the essential oil of the essential oil module 3, it is within the protection scope of this application.

[0048] Further, referring to Figures 4 to 6 , a second air inlet hole 122 is further provided on the outer side wall of the second cylinder 12. The second air inlet hole 122 is penetrated and connected to the first accommodation cavity 110 and the third accommodation cavity 130, so that the third air duct 131 is communicated with the first air duct 111.

[0049] In this embodiment, a part of the hot air flow of the first air duct 111 reaches the inside of the third accommodation cavity 130 through the second air inlet hole 122, and heats the essential oil module 33 in the essential oil module 3, improving the volatilization efficiency of the essential oil module 33.

[0050] Specifically, referring to Figure 1 and Figure 5, the housing 2 further includes an outer shell 22 and a rear cover 23. The outer shell 22 is sleeved outside the air duct 1, and the rear cover 23 is adapted to cover the side of the first cylinder 11 and the second cylinder 12 away from the first air outlet 113. Refer to Figure 6 , at one end of the second cylinder 12 away from the first air outlet 113, an assembly groove 123 is further provided. A first air inlet groove 1231 is provided at the bottom of the assembly groove 123; a wind guiding member 124 is further included. The wind guiding member 124 is provided with a first clamping groove 1241, a second clamping groove 1242 and a second air inlet groove 1243. The first clamping groove 1241 is adapted to be clamped with the groove wall of the assembly groove 123, the second clamping groove 1242 is adapted to be clamped with the side wall of the rear cover 23, and the second air inlet groove 1243 is adapted to form a second air inlet hole 122 with the first air inlet groove 1231. At this time, the second air inlet hole 122 is located on the side of the second cylinder 12 away from the first air outlet 113 and is surrounded by the first air inlet groove 1231 of the assembly groove 123 and the second air inlet groove 1243 of the wind guiding member 124. The second air inlet hole 122 communicates the first accommodation cavity 110 and the third accommodation cavity 130. It should be noted that the second air inlet hole 122 can also directly penetrate the connection between the second cylinder 12 and the third cylinder 13, so that the first accommodation cavity 110 and the third accommodation cavity 130 communicate.

[0051] Preferably, an installation wall 133 is further provided inside the third cylinder 13. The third cylinder 13 forms a third accommodation cavity 130 on one side of the installation wall 133. The third air outlet 132 and the first air outlet 113 are located on the same side of the air duct 1; a third air inlet hole 1331 is provided on the installation wall 133, and the third air inlet hole 1331 communicates with the second air inlet hole 122.

[0052] Specifically, refer to Figure 4 and Figure 8 , the essential oil module 3 includes a first housing 31, a second housing 32 and an essential oil module 33. Both the first housing 31 and the second housing 32 are open on one side, and the first housing 31 and the second housing 32 are adapted to be clamped relatively; the essential oil module 33 is arranged between the first housing 31 and the second housing 32. A first ventilation hole 311 is provided on the first housing 31, and the first ventilation hole 311 communicates with the third air inlet hole 1331. A second ventilation hole 321 communicating with the first ventilation hole 311 is provided on the second housing 32. The second ventilation hole 321 forms the third air outlet 132. It should be noted that a first magnetic attracting member 34 is further provided on the installation wall 133, and a second magnetic attracting member 35 is further provided inside the first housing 31. The first magnetic attracting member 34 is adapted to attract the second magnetic attracting member 35, so that the essential oil module 3 can be detachably installed in the third accommodation cavity 130. At this time, the essential oil module 3 can be disassembled simply and quickly, which is convenient for replacing the used-up essential oil module 3, and greatly improves the service life of the essential oil module 3 of the hair dryer. Preferably, the first magnetic attracting member 34 is arranged on the side of the installation wall 133 away from the third accommodation cavity 130, and the second magnetic attracting member 35 is arranged between the bottom wall of the first housing 31 and the essential oil module 33.

[0053] Further, referring to Figure 3 , the mounting wall 133 is relatively located at the axial middle of the first cylinder 11 and on the central axis of the handle body 21. The third cylinder 13 forms a fifth accommodation cavity 134 on the other side of the mounting wall 133, and a display module 4 is further provided in the fifth accommodation cavity 134; the second air inlet hole 122 is provided on the side wall of the fifth accommodation cavity 134 and away from the mounting wall 133. A display cavity is provided in the display module 4, and the display cavity is adapted to communicate with the second air inlet hole 122 and the first ventilation hole 311.

[0054] In this embodiment, a fifth accommodation cavity 134 is provided on the other side of the mounting wall 133, and a display module 4 is provided in the fifth accommodation cavity 134, which can display the parameters of the hair dryer and is convenient for use.

[0055] Specifically, the air flow in the first accommodation cavity 110 enters the fifth accommodation cavity 134 through the second air inlet hole 122, and then reaches the third accommodation cavity 130 after passing through the third air inlet hole 1331 of the mounting wall 133. At this time, there is no need to open holes in the middle of the side walls of the second cylinder 12 and the third cylinder 13, and the damage to the second cylinder 12 and the third cylinder 13 is minimized, ensuring the structural strength of the second cylinder 12 and the third cylinder 13. At the same time, a display module 4 is further provided in the fifth accommodation cavity 134. The display module communicates with the second air inlet hole 122 and the third air inlet hole 1331, so that the third air duct 131 is communicated with the first air duct 111 and the air flow starts. Referring to Figure 7 and Figure 9, the display module 4 includes a third housing 41, a circuit board 42, a display screen 43, and a display board 44. The third housing 41 is at least partially adapted to be fixed within the fifth receiving cavity 134. In this embodiment, the third housing 41 is fixed to the mounting wall 133 by screws. A display cavity is provided within the third housing 41. A third ventilation hole 411 communicating with the second air inlet hole 122 is provided on the outer sidewall of the third housing 41. A fourth ventilation hole 412 communicating with the third air inlet hole 1331 is provided at the bottom of the third housing 41. The circuit board 42 and the display screen 43 are disposed at one end of the display cavity away from the mounting wall 133, and the display board 44 covers the outside of the display screen 43. In this embodiment, the second air inlet hole 122 not only functions as an air inlet but also as a wire-passing hole, enabling the control components within the handle body 21 to be connected to the display module 4. The airflow in the first air duct 111 reaches the display cavity through the second air inlet hole 122 and the third ventilation hole 411, and then enters the essential oil module 33 through the fourth ventilation hole 412, the third air inlet hole 1331, and the first ventilation hole 311 to heat the essential oil module 33, and then blows out the essential oil through the third ventilation hole 411. Preferably, the display module 4 further includes a fourth housing 45. The fourth housing 45 is sleeved outside the third housing 41, and the open sidewall of the fourth housing 45 is adapted to abut against the deflector, so that the deflector is fixedly installed in the assembly groove 123. At the same time, in this embodiment, the second air inlet hole 122 is provided on the inner sidewall of the fifth receiving cavity 134. In a variant embodiment, the second air inlet hole 122 can also be provided on the inner sidewall of the third receiving cavity 130, that is, the second air inlet hole 122 penetrates through the second cylinder 12 and the third cylinder 13. It should be noted that referring to Figure 6 , the fourth housing 45 abuts against the inner sidewall of the third cylinder 13, and there is a certain distance between the third ventilation hole 411 and the second air inlet hole 122. Therefore, to prevent the inner sidewall of the second cylinder 12 from abutting against the outer sidewall of the fourth housing 45 of the display module 4, resulting in the airflow being unable to reach the display cavity after passing through the second air inlet hole 122 and then through the third ventilation hole 411 of the third housing 41, a diversion groove 1232 is further provided on the inner sidewall of the second cylinder 12 at the first air inlet groove 1231. The diversion groove 1232 is recessed towards the side away from the central axis of the second cylinder 12, so that the diversion groove 1232 communicates the second air inlet hole 122 and the third ventilation hole 411, and the airflow in the second air duct 121 can better reach the display cavity after passing through the second air inlet hole 122, the diversion groove 1232, and the third ventilation hole 411.

[0056] Further, the third cylinder body 13 is arranged at the bottom of the inner side wall of the second cylinder body 12, so that the second air duct 121 is in a crescent shape; both axial ends of the display module 4 and the essential oil module 3 do not extend beyond the axial ends of the outer shell 22 of the housing 2. In this embodiment, the second air duct 121 is in a crescent shape and the third cylinder body 13 is cylindrical, so that the whole air duct 1 forms a shape of the sun and the moon, which is more beautiful; moreover, both axial ends of the display module 4 and the essential oil module 3 do not extend beyond the axial ends of the outer shell 22 of the housing 2, and the overall shape is more harmonious.

[0057] It should be noted that the above-mentioned embodiments can be freely combined according to needs. The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A hair dryer, characterized in that: include: The air duct comprises a first cylinder, a second cylinder and a third cylinder, wherein the second cylinder is arranged inside the first cylinder, a first air duct is formed between the first cylinder and the second cylinder, and a heating component is arranged in the first air duct; the third cylinder is arranged inside the second cylinder, a second air duct is formed between the second cylinder and the third cylinder, a third air duct is formed inside the third cylinder, and an essential oil module is arranged in the third air duct; The shell includes a handle body, the handle body is arranged on the outer side wall of the first cylinder, a motor assembly is arranged inside the handle body and is connected with the first air duct.

2. A hair dryer according to claim 1, characterized in that: The first cylinder is coaxially arranged outside the second cylinder, a first accommodating cavity is formed between the first cylinder and the second cylinder, a first air inlet is arranged on the side wall of the first accommodating cavity, the first air inlet is connected to the handle, and a first air outlet is also arranged on one side of the first accommodating cavity to form the first air duct; The third cylinder is arranged on the inner wall of the second cylinder, a second accommodating cavity is formed between the second cylinder and the third cylinder, and the second accommodating cavity is axially penetrated to form the second air duct; A third accommodating chamber is provided inside the third cylinder, one side of the third accommodating chamber is connected to the first accommodating chamber, and the other side of the third accommodating chamber is provided with a third air outlet to form a third air duct.

3. A hair dryer according to claim 2, characterized in that: A second air inlet hole is also provided on the outer side wall of the second cylinder, and the second air inlet hole is connected through the first accommodating cavity and the third accommodating cavity, so that the third air duct is connected to the first air duct.

4. A hair dryer according to claim 3, characterized in that: The housing further comprises an outer shell and a rear cover, wherein the outer shell is provided with an outer side of the air cylinder, and the rear cover is adapted to cover a side of the first cylinder and the second cylinder away from the first air outlet; An assembly groove is further provided at one end of the second cylinder away from the first air outlet, and a first air inlet groove is provided at the bottom of the assembly groove; It also includes an air guide member, which is provided with a first clamping groove, a second clamping groove and a second air inlet groove, the first clamping groove is suitable for clamping the groove wall of the assembly groove, the second clamping groove is suitable for clamping the side wall of the back cover, and the second air inlet groove is suitable for forming the second air inlet hole with the first air inlet groove.

5. A hair dryer according to claim 3, characterized in that: The third cylinder is further provided with a mounting wall inside, the third cylinder forms the third accommodating cavity on one side of the mounting wall, and the third air outlet and the first air outlet are located on the same side of the air cylinder; A third air inlet hole is provided on the installation wall, and the third air inlet hole is connected to the second air inlet hole.

6. A hair dryer according to claim 5, characterized in that: The essential oil module comprises a first shell, a second shell and an essential oil module, the first shell and the second shell both have openings on one side, and the first shell and the second shell are suitable for relative clamping; The essential oil module is arranged between the first shell and the second shell. The first shell is provided with a first ventilation hole connected to the third air inlet hole. The second shell is provided with a second ventilation hole connected to the first ventilation hole.

7. A hair dryer according to claim 6, characterized in that: A first magnetic component is also provided on the installation wall, and a second magnetic component is also provided inside the first shell. The first magnetic component is suitable for attracting the second magnetic component to each other, so that the essential oil module can be detachably installed in the third accommodating chamber.

8. A hair dryer according to claim 6, characterized in that: The installation wall is relatively located in the axial middle of the first cylinder and on the central axis of the handle body, and the third cylinder forms a fifth accommodating cavity on the other side of the installation wall, and a display module is also arranged in the fifth accommodating cavity; The second air inlet hole is arranged on the side wall of the fifth accommodating cavity and is away from the mounting wall. A display cavity is arranged in the display module, and the display cavity is suitable for connecting the second air inlet hole and the first ventilation hole.

9. A hair dryer according to claim 8, characterized in that: The display module includes a third shell, a circuit board, a display screen and a display panel. The third shell is at least partially suitable for being fixed in the fifth accommodating cavity. The display cavity is arranged in the third shell. A third ventilation hole connected with the second air inlet hole is arranged on the outer wall of the third shell. A fourth ventilation hole connected with the third air inlet hole is arranged at the bottom of the third shell. The circuit board and the display screen are arranged at one end of the display cavity away from the mounting wall, and the display panel covers the outer side of the display screen.

10. A hair dryer according to claim 8, characterized in that: The third cylinder is arranged at the bottom of the inner wall of the second cylinder, so that the second air duct is crescent-shaped; Both axial ends of the display module and the essential oil module do not extend beyond the axial ends of the outer shell of the housing.

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