Air duct assembly and electric hair drier

Abstract

The utility model relates to an air duct assembly and an electric hair drier, and belongs to the technical field of electric hair driers. The air duct inner shell is arranged on the air duct outer shell, the air duct inner shell is located in the air duct outer shell, and an air passing channel is defined by the air duct inner shell and the air duct outer shell; the air inlet shell is arranged on the air duct outer shell and / or the air duct inner shell, the air inlet shell is provided with an air inlet cavity, the air inlet shell is provided with a first air inlet and a second air inlet, the first air inlet and the second air inlet are both communicated with the air inlet cavity, and the air inlet cavity, the air passing channel and the air outlet are sequentially communicated. According to the air duct assembly, through the first air inlet and the second air inlet formed in the air inlet shell, multiple paths of airflow can be introduced into the air duct assembly at the same time. By means of the design, the flexibility of air treatment is improved, mixing, distribution or flow division of air can be achieved, and the air input flow is larger.

Description

Technical Field

[0001] The utility model relates to the technical field of hair dryers, in particular to an air duct component and a hair dryer. Background Art

[0002] Hair dryers are an everyday necessity, providing the necessary wind and heat to dry hair. However, as consumers' expectations for hair dryer performance continue to rise, they are experiencing some drawbacks. Existing hair dryers typically have only a single air inlet, limiting the air flow and limiting the adjustable wind speed range. This can prevent users from achieving their desired wind speed, resulting in a poor user experience. Utility Model Content

[0003] Based on this, it is necessary to provide an air duct assembly and a hair dryer to address the problem that existing hair dryers generally only have a single air inlet, which limits the flow rate of air input.

[0004] A duct assembly comprises: a duct outer shell, the duct outer shell being provided with an air outlet; an duct inner shell, the duct inner shell being arranged on the duct outer shell, the duct inner shell being located inside the duct outer shell, the duct inner shell and the duct outer shell being enclosed together to form an air passage; an air inlet shell, the air inlet shell being arranged on the duct outer shell and / or the duct inner shell, the air inlet shell being provided with an air inlet cavity, the air inlet shell being provided with a first air inlet and a second air inlet, the first air inlet and the second air inlet being both connected to the air inlet cavity, the air inlet cavity, the air passage and the air outlet being connected in sequence.

[0005] The first aspect of the present application discloses an air duct assembly, which forms an air passage by enclosing an inner duct shell and an outer duct shell, which can guide the airflow more effectively, reduce the generation of vortices, and thus improve ventilation efficiency. This design allows air to pass through the air duct more smoothly, achieving a faster ventilation effect. By optimizing the design of the air passage, the energy loss of the air flow during transmission is reduced, thereby improving the overall energy efficiency ratio. Through the first air inlet and the second air inlet provided on the air inlet shell, the air duct assembly can introduce multiple airflows at the same time. This design not only improves the flexibility of air processing, but also helps to achieve air mixing, distribution or diversion. The air input flow rate is larger, which facilitates the air duct assembly to adjust the wind speed, and the wind speed adjustment range is larger. The air duct assembly of the present application provides users with a more efficient, comfortable and personalized blowing experience by improving ventilation efficiency and enhancing air processing capabilities.

[0006] In one embodiment, the first air inlet is located on the side of the air inlet housing, and the second air inlet is located at the end of the air inlet housing. By locating the first air inlet on the side of the air inlet housing and the second air inlet at the end of the air inlet housing, the layout of the first and second air inlets is optimized, increasing the air input flow rate and expanding the wind speed adjustment range. This design achieves more uniform airflow distribution, resulting in a more stable and uniform airflow within the air passage.

[0007] In one embodiment, the air inlet housing is further provided with a third air inlet, the third air inlet being arranged opposite the first air inlet. There are multiple third air inlets, the multiple third air inlets being arranged at intervals along the circumference of the air inlet housing, and the first air inlet, the multiple third air inlets, and the air inlet cavity being sequentially connected. The multiple third air inlets can effectively disperse the impact of the airflow, reducing noise and vibration caused by uneven airflow. Furthermore, it can effectively reduce the ingress of external dust into the interior of the air duct assembly and its impact on the operating performance of the air duct assembly.

[0008] In one embodiment, the air inlet housing includes a support housing and an air inlet housing. The support housing is disposed on the air duct outer shell and / or the air duct inner shell, and the air inlet housing is disposed on the air duct outer shell and / or the support housing. The air inlet housing is provided with the first air inlet and the second air inlet. The provision of the support housing makes the air duct assembly more compact and enhances the overall structural strength of the air duct assembly.

[0009] In one embodiment, the air inlet housing includes an air inlet housing body and a boss. The air inlet housing body is arranged on the air duct housing and is located at the end of the air duct housing. The air inlet housing body is provided with the first air inlet, the air inlet groove and the second air inlet, the second air inlet is respectively connected to the air inlet groove and the air inlet cavity, the boss is arranged on the air inlet housing body and the boss is located on the side of the air inlet housing body facing the supporting housing, and the boss and the air inlet housing body are enclosed to form the assembly space. The provision of the air inlet groove and the third air inlet can effectively reduce the entry of external dust into the interior of the air duct assembly and affect the working performance of the air duct assembly. The assembly space formed by the boss and the air inlet housing body provides a convenient installation position for the air inlet plate. This design simplifies the assembly process, reduces the difficulty of assembly, and helps to improve production efficiency.

[0010] In one embodiment, an air inlet plate is further included, the air inlet plate including an arc plate body and a stop block, the air inlet shell is provided with an assembly space, the arc plate body is arranged on the air inlet shell and is located at the assembly space, the arc plate body is provided with the third air inlet arranged opposite to the first air inlet, the stop block is arranged on the arc plate body, and the stop block abuts between the air inlet shell and the support shell. The arrangement of the air inlet plate can effectively reduce the entry of external dust into the interior of the air duct assembly and affect the working performance of the air duct assembly. It can also effectively improve the overall appearance quality. The stop block is in close contact with the air inlet shell and the support shell, ensuring the stable installation of the air inlet plate in the assembly space. This design effectively prevents the air inlet plate from loosening or shifting due to airflow impact or vibration, thereby improving the stability of the overall structure. The third air inlet on the arc plate body is arranged opposite to the first air inlet, which helps to form a smoother and more uniform airflow path.

[0011] In one embodiment, the air inlet plate is a curved plate. This allows for a more coordinated fit between the air inlet plate and the air inlet housing. Furthermore, the air inlet plate has a larger air inlet area and a better air inlet effect.

[0012] In one embodiment, the support shell includes a support shell body, a fixed block and a first connecting ear. The support shell body is arranged on the air duct outer shell and is located inside the air duct outer shell. The number of the fixed blocks is multiple, and the multiple fixed blocks are all arranged on the support shell body and are located on the side of the support shell body facing the air duct inner shell. The multiple fixed blocks are arranged at intervals along the circumference of the support shell body, and the first connecting ear is arranged on the support shell body. By arranging multiple fixed blocks at intervals along the circumference of the support shell body, air can flow between any two adjacent fixed blocks, so that the air delivery is smoother and more convenient. The provision of the first connecting ear provides a convenient connection position, so that the support shell can be quickly and accurately assembled with other components of the air duct assembly. This design simplifies the assembly process and improves assembly efficiency.

[0013] In one embodiment, the support housing is formed with a third connecting ear. A latch is provided between the third connecting ear and one of the air inlet housings. A latch is provided between the third connecting ear and the other of the air inlet housings. The latch fits into the latch. This latch fits into the latch, simplifying the connection between the support housing and the air inlet housing, reducing assembly difficulty and time.

[0014] In one embodiment, it further includes a fan assembly and an air flow cover, the air duct inner shell is provided with an installation cavity, the fan assembly is arranged on the air duct inner shell and is located in the installation cavity, the air flow cover is covered on the air duct inner shell, the air flow cover is provided with ventilation holes, the air duct inner shell is provided with a first air flow hole, the air inlet cavity, the ventilation holes, the fan assembly, the first air flow hole, the air flow channel and the air outlet are connected in sequence. The provision of the fan assembly can significantly improve the air flow conveying capacity. By reasonably arranging the first air flow hole on the air duct inner shell, the fan assembly and the ventilation holes on the air flow cover, smooth transmission of air flow between the air inlet cavity, the ventilation holes, the fan assembly, the air flow hole, the air flow channel and the air outlet is achieved, thereby ensuring efficient air flow circulation. This design provides another air flow path, so that the air flow transmission efficiency is higher.

[0015] In one embodiment, the air duct inner shell is provided with a second air hole, and the air inlet cavity, the second air hole, the air duct, and the air outlet are sequentially connected. This sequential connection between the air inlet cavity, the second air hole, the air duct, and the air outlet allows for more effective airflow guidance, reduces eddy currents, and thus improves ventilation efficiency. This design allows air to flow more smoothly through the air duct, achieving faster ventilation.

[0016] In one embodiment, the air inlet cavity, the fan assembly, the air passage, and the air outlet are sequentially connected. By sequentially connecting the air inlet cavity, the fan assembly, the air passage, and the air outlet, the hair dryer can smoothly and unobstructedly intake and exhaust air, which is highly practical.

[0017] In one embodiment, the invention further comprises an air hood, wherein the air hood comprises an air hood body and a second connecting ear. The air hood body is arranged on the air duct inner shell and / or the air inlet shell, the air hood body is located in the air inlet cavity, the air hood body is provided with ventilation holes, the number of the second connecting ears is multiple, and the multiple second connecting ears are arranged at intervals along the circumference of the air hood body. The air inlet shell forms multiple first connecting ears, the number of the second connecting ears is the same as the number of the first connecting ears, and the second connecting ears are connected to the first connecting ears in a one-to-one correspondence. The air inlet shell is provided with multiple ventilation holes, so that the air flow can pass through the air hood body evenly and smoothly. The one-to-one connection of the multiple second connecting ears and the multiple first connecting ears makes the connection between the air hood and the air inlet shell more stable. This design effectively disperses the stress points and reduces the risk of deformation or damage caused by excessive stress on a single point. It also effectively simplifies the assembly process between the air hood and the air inlet shell.

[0018] In one embodiment, the air duct inner shell includes a first inner shell and a second inner shell, the first inner shell and the second inner shell are both arranged on the air duct outer shell and located inside the air duct outer shell, the second inner shell is located between the first inner shell and the air inlet shell, the first inner shell is provided with a first air hole, the second inner shell is provided with a second air hole, the first inner shell, the second inner shell and the air duct outer shell together form the air passage, the second inner shell is provided with an installation cavity or the second inner shell and the first inner shell together form an installation cavity. By providing the first air hole and the second air hole in the first inner shell and the second inner shell respectively, the air flow can flow along a preset path inside the air duct inner shell, thereby improving ventilation efficiency. The installation cavity formed by the first inner shell and the second inner shell provides a compact installation space for internal components such as the fan assembly. This design simplifies the assembly process, improves production efficiency, and helps protect internal components from external damage.

[0019] In one embodiment, an electric heating component is further included. The electric heating component is arranged on the air duct outer shell and / or the air duct inner shell. The electric heating component is located in the air duct and is arranged around the air duct inner shell. By arranging the electric heating component around the air duct inner shell, the electric heating component can be evenly distributed in the air duct. This design ensures that the airflow can fully contact the electric heating component when passing through the air duct, thereby achieving efficient heating. It can also avoid the problem of local overheating or temperature unevenness of the airflow, thereby improving the heating effect.

[0020] In one embodiment, the air duct housing includes a protective housing and an air outlet housing. The air outlet housing is disposed on and within the protective housing. The air outlet housing is provided with the air outlet. The air outlet housing and the air duct inner housing enclose the air passage. The air outlet housing is disposed within the protective housing, resulting in a more compact structure and reducing the overall size of the air duct assembly. The provision of the air outlet ensures smooth airflow.

[0021] In one embodiment, the air inlet housing comprises an air inlet end housing and an air inlet side housing. The air inlet side housing is mounted on the air duct housing, and the air inlet end housing is mounted on the air inlet side housing. The air inlet side housing is provided with the first air inlet, and the air inlet end housing is provided with the second air inlet. By including the air inlet end cover and the air inlet side housing, the air inlet housing structure is simplified, effectively reducing production costs. The provision of the first and second air inlets provides multiple air inlet paths, resulting in high air intake efficiency.

[0022] A hair dryer comprises: a handle assembly; and the above-mentioned air duct assembly, wherein the air duct assembly is arranged on the handle assembly.

[0023] The second aspect of this application discloses a hair dryer that ensures smooth airflow through the provision of an air duct assembly, and combines the heating function of an electric heating assembly to achieve efficient ventilation and heating. This design enables the hair dryer to quickly heat air to the desired temperature and output a uniform and powerful wind. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a first stereoscopic view of the air duct assembly;

[0025] Figure 2 is a second perspective view of the air duct assembly;

[0026] Figure 3 is a third perspective view of the air duct assembly;

[0027] Figure 4 is a first cross-sectional view of the air duct assembly;

[0028] Figure 5 is a second cross-sectional view of the air duct assembly;

[0029] Figure 6 is the first exploded view of the air duct assembly;

[0030] Figure 7 is a second exploded view of the air duct assembly;

[0031] Figure 8 is a first stereoscopic view of the air inlet housing;

[0032] Figure 9 This is the first exploded view of the air inlet housing;

[0033] Figure 10 is a second stereoscopic view of the air inlet housing;

[0034] Figure 11 This is the second exploded view of the air inlet housing;

[0035] Figure 12 is a three-dimensional diagram of the air inlet shell;

[0036] Figure 13 is a three-dimensional diagram of the air inlet plate;

[0037] Figure 14 is a three-dimensional diagram of the supporting shell;

[0038] Figure 15 A perspective view of a windshield member;

[0039] Figure 16 is a three-dimensional diagram of the inner shell of the air duct;

[0040] Figure 17 is a first stereoscopic view of the hair dryer;

[0041] Figure 18 This is a second stereoscopic view of the hair dryer.

[0042] The corresponding relationship between the reference numerals and component names is as follows:

[0043] 1 air duct housing, 11 protective housing, 12 air outlet housing, 101 air outlet, 102 air passage;

[0044] 2 air duct inner shell, 21 first inner shell, 22 second inner shell, 201 installation cavity, 202 first air hole, 203 second air hole;

[0045] 3 air inlet housing, 31 supporting housing, 311 supporting housing body, 312 fixing block, 313 first connecting ear, 314 third connecting ear, 32 air inlet housing, 321 air inlet housing body, 322 boss, 323 air inlet end housing, 324 air inlet side housing, 33 air inlet plate, 331 arc plate body, 332 locking block, 301 air inlet cavity, 302 first air inlet, 303 second air inlet, 304 third air inlet, 305 assembly space, 306 air inlet groove;

[0046] 4 fan assembly;

[0047] 5 wind shield member, 51 wind shield body, 52 second connecting ear, 501 ventilation hole;

[0048] 6. Electric heating components;

[0049] 100 handle assembly;

[0050] 200 air duct components. DETAILED DESCRIPTION

[0051] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0052] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0053] Example 1

[0054] like Figure 1-5As shown, this embodiment discloses an air duct assembly, comprising: an air duct outer shell 1, the air duct outer shell 1 is provided with an air outlet 101; an air duct inner shell 2, the air duct inner shell 2 is arranged on the air duct outer shell 1, the air duct inner shell 2 is located inside the air duct outer shell 1, the air duct inner shell 2 and the air duct outer shell 1 are enclosed to form an air passage 102; an air inlet shell 3, the air inlet shell 3 is arranged on the air duct outer shell 1 and / or the air duct inner shell 2, the air inlet shell 3 is provided with an air inlet cavity 301, the air inlet shell 3 is provided with a first air inlet 302 and a second air inlet 303, the first air inlet 302 and the second air inlet 303 are both connected to the air inlet cavity 301, and the air inlet cavity 301, the air passage 102 and the air outlet 101 are connected in sequence.

[0055] The first aspect of the present application discloses an air duct assembly, which forms an air passage 102 by enclosing an air duct inner shell 2 and an air duct outer shell 1, which can guide the airflow more effectively, reduce the generation of vortices, and thus improve ventilation efficiency. This design allows air to pass through the air duct more smoothly, achieving a faster ventilation effect. By optimizing the design of the air passage 102, the energy loss of the air flow during transmission is reduced, thereby improving the overall energy efficiency ratio. Through the first air inlet 302 and the second air inlet 303 set on the air inlet shell 3, the air duct assembly can introduce multiple airflows at the same time. This design not only improves the flexibility of air processing, but also helps to achieve air mixing, distribution or diversion. The air input flow rate is larger, which facilitates the air duct assembly to adjust the wind speed, and the wind speed adjustment range is larger. The air duct assembly of the present application provides users with a more efficient, comfortable and personalized blowing experience by improving ventilation efficiency and enhancing air processing capabilities.

[0056] like Figure 1 As shown, in addition to the features of the above embodiment, this embodiment further defines: the first air inlet 302 is located on the side of the air inlet housing 3, and the second air inlet 303 is located at the end of the air inlet housing 3. By locating the first air inlet 302 on the side of the air inlet housing 3 and the second air inlet 303 at the end of the air inlet housing 3, the layout of the first air inlet 302 and the second air inlet 303 is optimized, increasing the air input flow rate and expanding the wind speed adjustment range. This design achieves more uniform airflow distribution, thereby forming a more stable and uniform airflow within the air passage 102.

[0057] like Figure 3As shown, in addition to the features of the above embodiment, this embodiment further defines: the air inlet housing 3 is further provided with a third air inlet 304, the third air inlet 304 being arranged opposite the first air inlet 302, and the third air inlet 304 being provided in a plurality, the plurality of third air inlets 304 being arranged at intervals along the circumference of the air inlet housing 3, and the first air inlet 302, the plurality of third air inlets 304, and the air inlet cavity 301 being sequentially connected. The plurality of third air inlets 304 can effectively disperse the impact of the airflow, reducing noise and vibration caused by uneven airflow. Furthermore, it can effectively reduce the ingress of external dust into the interior of the air duct assembly and its impact on its operating performance.

[0058] like Figure 8 and Figure 10 As shown, in addition to the features of the above embodiment, this embodiment further defines: the air inlet housing 3 includes a support housing 31 and an air inlet housing 32. The support housing 31 is disposed on the air duct outer shell 1 and / or the air duct inner shell 2, and the air inlet housing 32 is disposed on the air duct outer shell 1 and / or the support housing 31. The air inlet housing 32 is provided with the first air inlet 302 and the second air inlet 303. The provision of the support housing 31 makes the air duct assembly more compact as a whole, thereby enhancing the structural strength of the air duct assembly as a whole.

[0059] like Figure 13 As shown, in addition to the features of the above embodiment, this embodiment further defines: the air inlet housing 32 includes an air inlet housing body 321 and a boss 322. The air inlet housing body 321 is disposed on the air duct housing 1 and located at an end of the air duct housing 1. The air inlet housing body 321 is provided with the first air inlet 302, an air inlet groove 306, and a second air inlet 303. The second air inlet 303 is connected to the air inlet groove 306 and the air inlet cavity 301, respectively. The boss 322 is disposed on the air inlet housing body 321 and is located on the side of the air inlet housing body 321 facing the supporting housing 31. The boss 322 and the air inlet housing body 321 enclose the assembly space 305. The provision of the air inlet groove 306 and the third air inlet 304 can effectively reduce the ingress of external dust into the interior of the air duct assembly and the impact on the operating performance of the air duct assembly. The assembly space 305 formed by the boss 322 and the air inlet housing body 321 provides a convenient installation location for the air inlet plate 33. This design simplifies the assembly process, reduces assembly difficulty, and helps to improve production efficiency.

[0060] like Figure 10 and Figure 14As shown, in addition to the features of the above embodiment, this embodiment further comprises an air inlet plate 33 comprising a curved plate body 331 and a retaining block 332. The air inlet housing 32 is provided with an assembly space 305. The curved plate body 331 is disposed on the air inlet housing 3 and located in the assembly space 305. The curved plate body 331 is provided with the third air inlet 304, which is located opposite the first air inlet 302. The retaining block 332 is disposed on the curved plate body 331 and abuts between the air inlet housing 32 and the support housing 31. The provision of the air inlet plate 33 effectively reduces the ingress of external dust into the interior of the air duct assembly, thereby affecting its operating performance. It also effectively improves the overall appearance. The retaining block 332 tightly abuts the air inlet housing 32 and the support housing 31, ensuring that the air inlet plate 33 is securely installed within the assembly space 305. This design effectively prevents the air inlet plate 33 from loosening or shifting due to airflow impact or vibration, thereby improving the stability of the overall structure. The third air inlet 304 on the arc plate body 331 is arranged opposite to the first air inlet 302, which helps to form a smoother and more uniform airflow path.

[0061] like Figure 14 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further provides that the air inlet plate 33 is a curved plate. This curved plate allows for a more coordinated fit between the air inlet plate 33 and the air inlet housing 32. Furthermore, the air inlet plate 33 has a larger air inlet area, resulting in a better air intake effect.

[0062] like Figure 11 and Figure 12 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines: the support shell 31 includes a support shell body 311, a fixing block 312, and a first connecting ear 313. The support shell body 311 is disposed on and within the air duct outer shell 1. There are multiple fixing blocks 312, each of which is disposed on the support shell body 311 and located on the side of the support shell body 311 facing the air duct inner shell 2. The multiple fixing blocks 312 are spaced apart along the circumference of the support shell body 311, and the first connecting ear 313 is disposed on the support shell body 311. With the multiple fixing blocks 312 spaced apart along the circumference of the support shell body 311, air can flow between any two adjacent fixing blocks 312, thereby ensuring smoother and more convenient air delivery. The provision of the first connecting ear 313 provides a convenient connection location, allowing the support shell 31 to be quickly and accurately assembled with other components of the air duct assembly. This design simplifies the assembly process and improves assembly efficiency.

[0063] like Figure 9As shown, in addition to the features of the above embodiment, this embodiment further defines: a third connecting ear 314 is formed on the support housing 31, a locking block is provided between the third connecting ear 314 and one of the air inlet housings 32, and a slot is provided between the third connecting ear 314 and the other of the air inlet housings 32, with the locking block being adapted to fit within the slot. The adapted engagement of the locking block and the slot simplifies the connection between the support housing 31 and the air inlet housing 32, reduces assembly difficulty, and saves assembly time.

[0064] like Figure 4-7 As shown, in addition to the features of the above embodiment, this embodiment is further defined as follows: it also includes a fan assembly 4 and an air hood 5, the air duct inner shell 2 is provided with a mounting cavity 201, the fan assembly 4 is arranged on the air duct inner shell 2 and is located in the mounting cavity 201, the air hood 5 is covered on the air duct inner shell 2, the air hood 5 is provided with a ventilation hole 501, the air duct inner shell 2 is provided with a first air vent 202, the air inlet cavity 301, the ventilation hole 501, the fan assembly 4, the first air vent 202, the air passage 102 and the air outlet 101 are connected in sequence. The provision of the fan assembly 4 can significantly improve the airflow delivery capacity. By rationally arranging the first air holes 202 on the air duct inner shell 2, the fan assembly 4, and the ventilation holes 501 on the air shroud 5, smooth airflow transmission is achieved between the air inlet cavity 301, the ventilation holes 501, the fan assembly 4, the air holes, the air passage 102, and the air outlet 101, thereby ensuring efficient air circulation. This design provides an alternative airflow path, thereby improving airflow transmission efficiency.

[0065] like Figure 16 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines: the air duct inner shell 2 is provided with a second air hole 203, and the air inlet cavity 301, the second air hole 203, the air passage 102, and the air outlet 101 are sequentially connected. This sequential connection between the air inlet cavity 301, the second air hole 203, the air passage 102, and the air outlet 101 more effectively guides the airflow, reduces the generation of vortices, and thus improves ventilation efficiency. This design allows air to flow more smoothly through the air duct, achieving faster ventilation.

[0066] like Figure 4 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the air inlet cavity 301, the fan assembly 4, the air passage 102, and the air outlet 101 are sequentially connected. By sequentially connecting the air inlet cavity 301, the fan assembly 4, the air passage 102, and the air outlet 101, the hair dryer can smoothly and unobstructedly intake and exhaust air, which is highly practical.

[0067] like Figure 15As shown, in addition to the features of the above embodiment, this embodiment further provides: it also includes an air hood member 5, the air hood member 5 comprising an air hood body 51 and second connecting ears 52. The air hood body 51 is disposed on the air duct inner shell 2 and / or the air inlet housing 3. The air hood body 51 is located within the air inlet cavity 301 and is provided with ventilation holes 501. The air hood body 51 has a plurality of second connecting ears 52, which are spaced apart along the circumference of the air hood body 51. The air inlet housing 3 has a plurality of first connecting ears 313 formed thereon. The number of second connecting ears 52 and the number of first connecting ears 313 are the same, and the second connecting ears 52 are connected to the first connecting ears 313 in a one-to-one correspondence. The multiple ventilation holes 501 in the air inlet housing ensure uniform and smooth airflow through the air hood body 51. The one-to-one connection between the multiple second connecting ears 52 and the multiple first connecting ears 313 further stabilizes the connection between the air hood member 5 and the air inlet housing 3. This design effectively disperses the stress points, reduces the risk of deformation or damage caused by excessive stress on a single point, and effectively simplifies the assembly process between the air shroud 5 and the air inlet housing 3.

[0068] like Figure 16 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the air duct inner shell 2 includes a first inner shell 21 and a second inner shell 22, the first inner shell 21 and the second inner shell 22 are both provided on the air duct outer shell 1 and located inside the air duct outer shell 1, the second inner shell 22 is located between the first inner shell 21 and the air inlet shell 3, the first inner shell 21 is provided with a first air hole 202, the second inner shell 22 is provided with a second air hole 203, the first inner shell 21, the second inner shell 22 and the air duct outer shell 1 together form the air passage 102, the second inner shell 22 is provided with a mounting cavity 201 or the second inner shell 22 and the first inner shell 21 together form the mounting cavity 201. Since the first inner shell 21 and the second inner shell 22 are provided with the first air hole 202 and the second air hole 203 respectively, the air flow can flow along a preset path inside the air duct inner shell 2, thereby improving the ventilation efficiency. The installation cavity 201 formed by the first inner shell 21 and the second inner shell 22 provides a compact installation space for internal components such as the fan assembly 4. This design simplifies the assembly process, improves production efficiency, and helps protect internal components from external damage.

[0069] like Figure 4 and Figure 5As shown, in addition to the features of the above embodiment, this embodiment is further defined as follows: it also includes an electric heating component 6, the electric heating component 6 is arranged on the air duct outer shell 1 and / or the air duct inner shell 2, the electric heating component 6 is located in the air duct 102, and the electric heating component 6 is arranged around the air duct inner shell 2. By arranging the electric heating component 6 around the air duct inner shell 2, the electric heating component 6 can be evenly distributed in the air duct 102. This design ensures that the airflow can fully contact the electric heating component 6 when passing through the air duct 102, thereby achieving efficient heating. It can also avoid the problem of local overheating or uneven temperature of the airflow, thereby improving the heating effect.

[0070] like Figure 4 and Figure 5 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines: the air duct housing 1 includes a protective housing 11 and an air outlet housing 12. The air outlet housing 12 is disposed on and within the protective housing 11. The air outlet housing 12 is provided with the air outlet 101. The air outlet housing 12 and the air duct inner housing 2 enclose the air passage 102. The placement of the air outlet housing 12 within the protective housing 11 makes the structure more compact and reduces the overall size of the air duct assembly. The provision of the air outlet 101 ensures smooth airflow.

[0071] Example 2

[0072] like Figure 9 As shown, the air inlet housing 32 includes an air inlet end housing 323 and an air inlet side housing 324. The air inlet side housing 324 is mounted on the air duct housing 1, and the air inlet end housing 323 is mounted on the air inlet side housing 324. The air inlet side housing 324 is provided with the first air inlet 302, and the air inlet end housing 323 is provided with the second air inlet 303. By including the air inlet end housing 323 and the air inlet side housing 324, the structure of the air inlet housing 32 is simplified, effectively reducing production costs. The provision of the first air inlet 302 and the second air inlet 303 provides multiple air inlet paths, resulting in high air intake efficiency.

[0073] Example 3

[0074] like Figure 17 and Figure 18 As shown, this embodiment discloses a hair dryer, comprising: a handle assembly 100 ; and the above-mentioned air duct assembly 200 , wherein the air duct assembly 200 is arranged on the handle assembly 100 .

[0075] The second aspect of the present application discloses a hair dryer that ensures smooth airflow through the provision of an air duct assembly 200, and achieves efficient ventilation and heating in combination with the heating function of an electric heating assembly 6. This design enables the hair dryer to quickly heat air to a desired temperature and output a uniform, powerful wind.

[0076] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, and these variations and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An air duct assembly, characterized in that: include: An air duct housing (1), wherein the air duct housing (1) is provided with an air outlet (101); An air duct inner shell (2), the air duct inner shell (2) being arranged on the air duct outer shell (1), the air duct inner shell (2) being located inside the air duct outer shell (1), and the air duct inner shell (2) and the air duct outer shell (1) enclosing each other to form an air passage (102); An air inlet shell (3), the air inlet shell (3) being arranged on the air duct outer shell (1) and / or the air duct inner shell (2), the air inlet shell (3) being provided with an air inlet cavity (301), the air inlet shell (3) being provided with a first air inlet (302) and a second air inlet (303), the first air inlet (302) and the second air inlet (303) both being in communication with the air inlet cavity (301), the air passage (102) and the air outlet (101) being in communication with each other in sequence.

2. The air duct assembly according to claim 1, characterized in that: The first air inlet (302) is located at a side of the air inlet housing (3), and the second air inlet (303) is located at an end of the air inlet housing (3); And / or the air inlet shell (3) is further provided with a third air inlet (304), the third air inlet (304) is arranged opposite to the first air inlet (302), the number of the third air inlets (304) is multiple, the multiple third air inlets (304) are arranged at intervals along the circumference of the air inlet shell (3), and the first air inlet (302), the multiple third air inlets (304) and the air inlet cavity (301) are connected in sequence.

3. The air duct assembly according to claim 1, characterized in that: The air inlet housing (3) comprises a supporting housing (31) and an air inlet housing (32); the supporting housing (31) is arranged on the air duct outer shell (1) and / or the air duct inner shell (2); the air inlet housing (32) is arranged on the air duct outer shell (1) and / or the supporting housing (31); and the air inlet housing (32) is provided with the first air inlet (302) and the second air inlet (303).

4. The air duct assembly according to claim 3, characterized in that: The air inlet shell (32) comprises an air inlet shell body (321) and a convex column (322), the air inlet shell body (321) is arranged on the air duct shell (1) and is located at the end of the air duct shell (1), the air inlet shell body (321) is provided with the first air inlet (302), the air inlet shell body (321) is provided with an air inlet groove (306) and a second air inlet (303), the second air inlet (303) is communicated with the air inlet groove (306) and the air inlet cavity (301) respectively, the convex column (322) is arranged on the air inlet shell body (321) and the convex column (322) is located on the side of the air inlet shell body (321) facing the supporting shell (31), and the convex column (322) and the air inlet shell body (321) enclose an assembly space (305); Or the air inlet housing (32) includes an air inlet end housing (323) and an air inlet side housing (324), the air inlet side housing (324) is arranged on the air duct housing (1), the air inlet end housing (323) is arranged on the air inlet side housing (324), the air inlet side housing (324) is provided with the first air inlet (302), and the air inlet end housing (323) is provided with the second air inlet (303); And / or further includes an air inlet plate (33), the air inlet plate (33) including an arc plate body (331) and a stop block (332), the air inlet shell (32) is provided with an assembly space (305), the arc plate body (331) is arranged on the air inlet housing (3) and is located at the assembly space (305), the arc plate body (331) is provided with a third air inlet (304) arranged opposite to the first air inlet (302), the stop block (332) is arranged on the arc plate body (331), and the stop block (332) abuts between the air inlet shell (32) and the support shell (31); And / or further includes an air inlet plate (33), wherein the air inlet plate (33) is an arc-shaped plate.

5. The air duct assembly according to claim 3, characterized in that: The supporting shell (31) comprises a supporting shell body (311), a fixing block (312) and a first connecting ear (313); the supporting shell body (311) is arranged on the air duct outer shell (1) and is located inside the air duct outer shell (1); the fixing blocks (312) are multiple in number; the multiple fixing blocks (312) are all arranged on the supporting shell body (311) and are located on a side of the supporting shell body (311) facing the air duct inner shell (2); the multiple fixing blocks (312) are arranged at intervals along the circumference of the supporting shell body (311); and the first connecting ear (313) is arranged on the supporting shell body (311); And / or a third connecting ear (314) is formed on the supporting shell (31), a clamping block is provided between the third connecting ear (314) and one of the air inlet shells (32), a clamping slot is provided between the third connecting ear (314) and the other of the air inlet shells (32), and the clamping block is adapted to the clamping slot.

6. The air duct assembly according to claim 1, characterized in that: The air duct inner shell (2) further comprises a fan assembly (4) and an air flow cover (5), wherein the air duct inner shell (2) is provided with an installation cavity (201), the fan assembly (4) is arranged on the air duct inner shell (2) and is located in the installation cavity (201), the air flow cover (5) is covered on the air duct inner shell (2), the air flow cover (5) is provided with a ventilation hole (501), the air duct inner shell (2) is provided with a first air flow hole (202), the air inlet cavity (301), the ventilation hole (501), the fan assembly (4), the first air flow hole (202), the air flow channel (102) and the air outlet (101) are sequentially connected; and / or the air duct inner shell (2) is provided with a second air hole (203), and the air inlet cavity (301), the second air hole (203), the air passage (102) and the air outlet (101) are sequentially connected; And / or the air inlet cavity (301), the fan assembly (4), the air passage (102) and the air outlet (101) are connected in sequence.

7. The air duct assembly according to claim 1, characterized in that: It also includes an air hood member (5), the air hood member (5) including an air hood body (51) and a second connecting ear (52), the air hood body (51) is arranged on the air duct inner shell (2) and / or the air inlet shell (3), the air hood body (51) is located in the air inlet cavity (301), the air hood body (51) is provided with a ventilation hole (501), the number of the second connecting ears (52) is multiple, the multiple second connecting ears (52) are arranged at intervals along the circumference of the air hood body (51), and the air inlet shell (3) is formed with multiple first connecting ears (313), the number of the second connecting ears (52) and the number of the first connecting ears (313) are the same, and the second connecting ears (52) are connected to the first connecting ears (313) in a one-to-one correspondence.

8. The air duct assembly according to claim 1, characterized in that: The air duct inner shell (2) comprises a first inner shell (21) and a second inner shell (22); the first inner shell (21) and the second inner shell (22) are both arranged on the air duct outer shell (1) and located inside the air duct outer shell (1); the second inner shell (22) is located between the first inner shell (21) and the air inlet shell (3); the first inner shell (21), the second inner shell (22) and the air duct outer shell (1) enclose the air passage (102); the second inner shell (22) is provided with an installation cavity (201) or the second inner shell (22) and the first inner shell (21) enclose to form the installation cavity (201).

9. The air duct assembly according to claim 1, characterized in that: It also includes an electric heating component (6), the electric heating component (6) being arranged on the air duct outer shell (1) and / or the air duct inner shell (2), the electric heating component (6) being located in the air passage (102), and the electric heating component (6) being arranged around the air duct inner shell (2); And / or the air duct housing (1) comprises a protective housing (11) and an air outlet housing (12), the air outlet housing (12) is arranged on the protective housing (11) and located inside the protective housing (11), the air outlet housing (12) is provided with the air outlet (101), and the air outlet housing (12) and the air duct inner housing (2) are enclosed to form the air passage (102).

10. A hair dryer, characterized in that: include: a handle assembly (100); The air duct assembly (200) according to any one of claims 1 to 9, wherein the air duct assembly (200) is arranged on the handle assembly (100).

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