Hair dryer

Abstract

The application relates to an electric hair dryer, comprising: a wind tube provided with a first mounting cavity, the wind tube being provided with a first mounting opening and a second mounting opening; a wind channel assembly being at least partially located in the first mounting cavity, the wind channel assembly being provided with a wind passing channel; a motor assembly being at least partially located in the wind passing channel, the motor assembly being used for generating negative pressure in the wind passing channel; an air inlet shell being provided with a first air inlet, the air inlet shell being connected with the wind tube and / or the wind channel assembly through the first mounting opening, a second air inlet being formed between the air inlet shell and the wind tube, the first air inlet and the second air inlet being communicated with the wind passing channel respectively; and a handle being arranged on the wind tube. The electric hair dryer disclosed in the application is provided with the first air inlet of the air inlet shell, when the motor assembly operates, the motor assembly makes the wind passing channel in the wind channel assembly form negative pressure, external air flows into through the first air inlet, meanwhile, the air inlet shell cooperates with the wind tube to form the second air inlet, external air enters into the supplementary air through the second air inlet, and the air inlet amount is increased.

Description

Technical Field

[0001] This invention relates to the field of hair dryer technology, and in particular to a hair dryer. Background Technology

[0002] Hair dryers are a common household appliance, mainly used for drying and styling wet hair. Currently, miniature hair dryers are favored for their portability and small storage space. However, due to the reduced size of the body, miniature hair dryers often have a simpler air intake structure and a smaller air intake area. This not only limits the airflow and reduces the drying efficiency, but also increases the noise level, thus reducing the user experience. Summary of the Invention

[0003] Therefore, it is necessary to provide a hair dryer that addresses the problem that some existing hair dryers have a relatively simple air intake structure, a small air intake area, and a limited air volume.

[0004] A hair dryer includes: a hair shaft having a first mounting cavity, a first mounting port, and a second mounting port, the first mounting cavity communicating with the first mounting port and the second mounting port respectively; a duct assembly disposed on the hair shaft, the duct assembly being at least partially located within the first mounting cavity, the duct assembly having a cavity, and a first air passage hole and a first air outlet being provided at both ends of the duct assembly respectively, the first air passage hole, the cavity, and the first air outlet being sequentially connected to form an air passage; a motor assembly disposed on the duct assembly, the motor assembly being at least partially located within the air passage, the motor assembly being used to generate negative pressure in the air passage; an air inlet housing having a first air inlet, the air inlet housing partially passing through the first mounting port and connected to the hair shaft and / or the duct assembly, a second air inlet being formed between the air inlet housing and the hair shaft, the first air inlet and the second air inlet communicating with the first air passage hole respectively; and a handle disposed on the hair shaft.

[0005] This application discloses a hair dryer with an air duct assembly inside the air tube, a motor assembly mounted on the air duct assembly, and an air inlet housing connected to the air tube or the air duct assembly. The air inlet housing has a first air inlet. When the motor assembly is running, it creates a negative pressure in the air passage of the air duct assembly, allowing external air to flow in through the first air inlet. At the same time, the air inlet housing and the air tube cooperate to form a second air inlet, allowing external air to enter and replenish the air. This results in good airflow concentration at the air inlet of the air duct assembly. By increasing the air intake area, the air intake volume of the hair dryer is increased, and the whistling noise of the airflow is reduced.

[0006] In one embodiment, the air inlet housing includes a first air inlet housing and a second air inlet housing. The first air inlet housing is disposed on the second air inlet housing. The side of the second air inlet housing away from the first air inlet housing passes through the first mounting port and connects to the air duct and / or the air duct assembly. The first air inlet housing has a first air inlet, and the second air inlet housing has a first ventilation hole. The first ventilation hole communicates with both the first air inlet and the first air passage. A second air inlet is formed between the outer wall of the first or second air inlet housing and the inner wall of the air duct, and the second air inlet communicates with the first air passage. The air inlet housing is composed of a first air inlet housing and a second air inlet housing. The first air inlet housing has a first air inlet. After the first air inlet housing is connected to the air duct assembly or air duct through the second air inlet housing, an annular second air inlet is formed between the outer wall of the air inlet housing and the inner wall of the air duct.

[0007] In one embodiment, the first air inlet housing and the second air inlet housing are integrally formed.

[0008] In one embodiment, the outer wall of the first air inlet housing is provided with an air passage groove, and a second air inlet is formed between the side wall of the air passage groove and the inner wall of the air duct. By setting the air passage groove, the airflow space can be increased, thereby ensuring smoother air intake at the second air inlet.

[0009] In one embodiment, the second air inlet housing is annular, and the first air inlet housing has a second ventilation hole on the side facing the air duct assembly. The first air inlet housing has a first air inlet on its end wall away from the air duct assembly. An air inlet column is formed on the side of the air duct assembly away from the first air outlet, and the air inlet column has a first air passage hole. The air inlet column passes through the first ventilation hole and extends into the second ventilation hole, which communicates with the first air inlet, the first air passage hole, and the first ventilation hole, respectively. By adopting the above structure, the air inlet column is located inside the first air inlet housing, and an annular second air passage cavity is formed between the air duct assembly and the first air inlet housing. This reduces the possibility of foreign objects entering the hair dryer. Furthermore, this structure is simple, makes full use of installation space, and makes the hair dryer structure compact.

[0010] In one embodiment, there are multiple first air inlets, which are combined to form an annular air inlet end.

[0011] In one embodiment, the handle is provided with a third air inlet, and the third air inlet, the first mounting cavity, and the air passage are sequentially connected. The handle also has a third air inlet; the motor assembly generates negative pressure within the air passage, causing external air to enter through the third air inlet and flow through the handle and the first mounting cavity into the air passage. This increases the airflow while simultaneously carrying away internal heat, thereby reducing the temperature rise of the device and achieving a cooling effect. This prevents the handle and body of the hair dryer from overheating and causing inconvenience.

[0012] In one embodiment, the handle includes a handle body and an air inlet bottom cover. One end of the handle body is connected to the air duct, and the other end of the handle body is connected to the air inlet bottom cover. The air inlet bottom cover has the third air inlet.

[0013] In one embodiment, a drive assembly is further included. The handle has a second mounting cavity, which is connected to the first mounting cavity and the third air inlet. The drive assembly is disposed on the handle, with at least a portion of the drive assembly located within the second mounting cavity. By placing the drive assembly within the second mounting cavity, the negative pressure airflow generated when the motor assembly operates through the third air inlet flows through the second mounting cavity and carries away the heat generated by the drive assembly, thereby creating a heat dissipation effect and enabling the drive assembly to operate more stably.

[0014] In one embodiment, the air duct assembly has a second air passage hole on the side away from the first air outlet, and the third air inlet, the second mounting cavity, the first mounting cavity, the second air passage hole and the air passage are connected in sequence.

[0015] In one embodiment, a first filter screen is further included, located within the second mounting cavity and disposed opposite to the third air inlet. The first filter screen allows for the filtration of air entering through the third air inlet.

[0016] In one embodiment, the sidewall of the air duct assembly has a first connecting portion, which includes an inner ring, a first connecting member, and an outer ring. The inner ring is sleeved on the outer wall of the air inlet column. One end of the first connecting member near the air inlet housing is connected to the outer ring, and the other end of the first connecting member is connected to the inner ring. The radius of the inner ring is smaller than the radius of the outer ring. The outer ring is adapted to the air duct. The first connecting member has a second air passage hole, which is opposite to the first air passage hole. The first air passage hole is arranged along the length of the sidewall of the air inlet column. The first connecting member and the sidewall of the air inlet column enclose a first air passage cavity. The second air passage hole, the first air passage cavity, and the first air passage hole are sequentially connected. The sidewall of the second ventilation hole and the sidewall of the air inlet column enclose a second air passage cavity. The first air inlet, the second air passage cavity, and the first air passage hole are sequentially connected. By adopting the above structure, the sidewall of the air inlet column is enclosed by the sidewall of the first connector and the second ventilation hole to form a first air passage cavity and a second air passage cavity, respectively. The first air passage hole is connected to the first air passage cavity through the first air passage cavity, and the first air inlet is connected to the first air passage hole through the second air passage cavity. Thus, the designer can adjust the volume of the first air passage cavity or the second air passage cavity by adjusting the structure of the sidewall of the first connector or the second ventilation hole, thereby making it easier to adjust the air volume flowing into each air inlet. Preferably, the air volume of the first air inlet accounts for 70% to 75%, and the air volume of the third air inlet 501 accounts for 15% to 20%.

[0017] In one embodiment, there are multiple first air passages, and the multiple first air passages are distributed at intervals along the circumferential direction of the air inlet column.

[0018] In one embodiment, the air duct assembly includes an air inlet and an air outlet. The air outlet is disposed on the inner wall of the air duct near the second mounting port, and the air inlet is disposed on the side of the air outlet near the first mounting port. The air inlet and the air outlet enclose the cavity. The air inlet has a first air passage hole and a first receiving cavity, and the air outlet has a second receiving cavity and a first air outlet. The first air passage hole, the first receiving cavity, the second receiving cavity, and the first air outlet are sequentially connected to form the air passage channel. The motor assembly is disposed on the air inlet, and the motor assembly is at least partially located within the first receiving cavity. By setting the air inlet and the air outlet to enclose the air passage channel, and with the motor assembly disposed within the first receiving cavity of the air inlet, the negative pressure airflow generated by the motor assembly can fully enter the air passage channel and be orderly output under the guidance of the air passage channel. The airflow at the outlet is smooth, thereby reducing airflow loss, avoiding air leakage around the air duct, and maximizing the airflow volume of the hair dryer's outlet.

[0019] In one embodiment, the air inlet includes an air inlet body and a limiting housing. The two ends of the limiting housing are respectively adapted to the air outlet and the air inlet body. The air inlet body has a first air passage hole. The limiting housing cooperates with the air inlet body to form a first accommodating cavity. The motor assembly is adapted to the limiting housing. The air inlet housing passes through the first mounting port and connects to the air inlet body. By setting the limiting housing to adapt to and connect with the air outlet and the air inlet body respectively to form an air passage, and by limiting the motor assembly, the negative pressure airflow generated by the motor assembly can fully enter the air passage and be orderly output under the guidance of the air passage, maximizing the airflow of the hair dryer's outlet.

[0020] In one embodiment, the air inlet body includes an air inlet column, a limiting part, and a first connecting part. The limiting part is disposed on the side of the air inlet column away from the air inlet housing, and the limiting part is adapted to the limiting housing. The first connecting part is annular and is sleeved on the outer wall of the air inlet column. The air inlet housing part passes through the first mounting port and connects to the first connecting part. By adopting the above structure, the air inlet column can be easily assembled with the limiting housing and the air inlet housing through the setting of the limiting part and the first connecting part, thereby improving production efficiency.

[0021] In one embodiment, a second connecting portion is formed on the side of the air inlet housing near the second mounting port. A slide is provided on the outer wall of the second connecting portion. The slide is arranged along the circumferential direction of the second connecting portion. A stop is formed on the bottom wall of the slide. The stop and the side wall of the slide form a limiting groove. A slider adapted to the slide is provided on the inner wall of the first connecting portion. The slider can slide along the slide. The slider has at least a first position and a second position relative to the slide. When the slider is in the first position, the slider abuts against the stop and is located in the limiting groove. The air inlet portion is locked to the second connecting portion. When the slider is in the second position, the slider moves away from the stop and the air inlet portion can be separated from the second connecting portion. By adopting the above structure, the air inlet housing and the air inlet part can be connected by the cooperation of the slide and the slider. The limiting groove formed by the stop and the side wall of the slide can limit the slider. When the slider is in the limiting groove, it can lock the slider so that the air inlet housing and the air inlet part are tightly connected. When the slider is removed from the limiting groove, the air inlet housing and the air inlet part can be easily separated.

[0022] In one embodiment, the second air inlet housing includes a second connecting portion and a third connecting portion. The first air inlet housing has a mounting groove on the side near the second mounting port. The third connecting portion is adapted to the mounting groove, and the second connecting portion is located on the side of the third connecting portion away from the first air inlet housing. By providing a mounting groove on the first air inlet housing that adapts to the third connecting portion, the first air inlet housing and the second air inlet housing can be tightly connected, while fully utilizing the installation space and making the structure more compact.

[0023] In one embodiment, the first connecting portion has multiple protrusions on the side near the first air inlet housing. These protrusions are spaced apart along the circumference of the first connecting portion and abut against the peripheral wall of the first air inlet housing. By employing this structure, the protrusions limit the position of the first air inlet housing, thereby facilitating the alignment and locking of the slide of the second connecting portion with the slider of the first connecting portion.

[0024] In one embodiment, the air outlet includes an outer shell, an inner shell, and a plurality of second connectors. The outer shell has a second accommodating cavity, and the inner shell is at least partially located within the second accommodating cavity and on a side away from the first accommodating cavity. The two ends of the plurality of second connectors are respectively connected to the outer shell and the inner shell. The inner shell, the outer shell, and the plurality of second connectors enclose and form a plurality of first air outlets. By adopting the above structure, the outer shell, the inner shell, and the second connectors cooperate to form a plurality of first air outlets. The first air outlets are flat and small, thus increasing the wind speed to a certain extent and making the wind stronger. Furthermore, the plurality of first air outlets form an annular air supply end on the air outlet, thereby better diffusing the negative pressure airflow generated by the motor assembly and guiding the air.

[0025] In one embodiment, the outer shell, the inner shell, and the plurality of second connectors are integrally formed.

[0026] In one embodiment, a heating component is further included, which is disposed on the air outlet and located within the second accommodating cavity. The heating component heats the negative pressure airflow generated by the motor assembly. Located at the air outlet of the air passage, the heating component reduces heat loss during airflow and minimizes the impact of temperature rise on the motor assembly.

[0027] In one embodiment, a second filter is further included. The second filter is disposed on the side wall of the air inlet where the first air passage is located, and the second filter is disposed opposite to the first air passage. By providing the second filter, the air entering through the first and second air inlets can be filtered, effectively preventing hair, dust particles, and other debris from being sucked into the hair dryer and damaging its internal components, and keeping the inside of the hair dryer clean. Attached Figure Description

[0028] Figure 1 A perspective view of a hair dryer according to one embodiment;

[0029] Figure 2 An exploded view of one embodiment of a hair dryer;

[0030] Figure 3 A first cross-sectional view of a hair dryer according to one embodiment;

[0031] Figure 4 for Figure 3 Enlarged view of region A;

[0032] Figure 5 A second cross-sectional view of a hair dryer according to one embodiment;

[0033] Figure 6 for Figure 5 Enlarged view of region B;

[0034] Figure 7 A perspective view of an air inlet housing according to one embodiment;

[0035] Figure 8 An exploded view of the air inlet housing according to one embodiment;

[0036] Figure 9 This is a schematic diagram of the assembly of the air duct assembly and the air inlet housing according to one embodiment.

[0037] Figure 10 A perspective view of the air outlet section in one embodiment;

[0038] Figure 11 This is an exploded view of the air inlet section according to one embodiment.

[0039] The correspondence between the reference numerals and the component names is as follows:

[0040] 1. Air duct, 101. First mounting cavity;

[0041] 2. Air duct assembly, 201 first air passage hole, 202 first receiving cavity, 203 second receiving cavity, 204 first air outlet, 205 second air passage hole, 21 air inlet, 211 air inlet body, 2111 air inlet column, 2112 first connecting part, 21121 inner ring, 21122 first connecting piece, 21123 outer ring, 2114 slider, 2115 protrusion, 2113 limiting part, 212 limiting housing, 22 air outlet, 221 outer housing, 222 inner housing, 223 second connecting piece;

[0042] 3 motor components;

[0043] 4. Air inlet housing, 401 first air inlet, 402 second air inlet, 403 first ventilation hole, 404 air passage groove, 405 second ventilation hole, 406 slide rail, 407 limiting groove, 408 mounting groove, 41 first air inlet housing, 42 second air inlet housing, 421 second connecting part, 422 third connecting part;

[0044] 5 handle, 501 third air inlet, 502 second mounting cavity, 51 handle body, 52 bottom air inlet cover;

[0045] 6 heating components;

[0046] 7. Second filter. Detailed Implementation

[0047] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0048] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0049] The following describes some embodiments of the hair dryer according to the present invention with reference to the accompanying drawings.

[0050] like Figures 1 to 5As shown, this embodiment discloses a hair dryer, including: a hair dryer 1, the hair dryer 1 having a first mounting cavity 101, a first mounting port and a second mounting port, the first mounting cavity 101 communicating with the first mounting port and the second mounting port respectively; and a duct assembly 2, the duct assembly 2 being disposed on the hair dryer 1, the duct assembly 2 being at least partially located within the first mounting cavity 101, the duct assembly 2 having a cavity, and the two ends of the duct assembly 2 having a first air passage hole 201 and a first air outlet 204 respectively, the first air passage hole 201, the cavity and the first air outlet 204 being sequentially connected. A ventilation channel is formed; a motor assembly 3 is disposed on the air duct assembly 2, and at least part of the motor assembly 3 is located in the ventilation channel. The motor assembly 3 is used to generate negative pressure in the ventilation channel; an air inlet housing 4 is provided with a first air inlet 401, and part of the air inlet housing 4 passes through the first mounting port and is connected to the air duct 1 and / or the air duct assembly 2. A second air inlet 402 is formed between the air inlet housing 4 and the air duct 1. The first air inlet 401 and the second air inlet 402 are respectively connected to the first air passage 201; and a handle 5 is disposed on the air duct 1.

[0051] This application discloses a hair dryer. The air duct 1 is equipped with an air duct assembly 2, and a motor assembly 3 is mounted on the air duct assembly 2. An air inlet shell 4 is connected to the air duct 1 or the air duct assembly 2. The air inlet shell 4 is provided with a first air inlet 401. When the motor assembly 3 is running, the motor assembly 3 causes a negative pressure to be formed in the air passage of the air duct assembly 2. External air flows in through the first air inlet 401. At the same time, the air inlet shell 4 and the air duct 1 cooperate to form a second air inlet 402. External air enters through the second air inlet 402 to supplement the air, thereby making the airflow at the air inlet of the air duct assembly 2 well concentrated. By increasing the air intake area, the air intake volume of the hair dryer is increased, and the whistling noise of the air intake is reduced.

[0052] like Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, in addition to the features of the above embodiments, this embodiment further defines that: the air inlet housing 4 includes a first air inlet housing 41 and a second air inlet housing 42. The first air inlet housing 41 is disposed on the second air inlet housing 42. The side of the second air inlet housing 42 away from the first air inlet housing 41 passes through the first mounting port and is connected to the air duct 1 and / or the air duct assembly 2. The first air inlet housing 41 is provided with a first air inlet 401. The second air inlet housing 42 is provided with a first ventilation hole 403. The first ventilation hole 403 communicates with the first air inlet 401 and the first air passage hole 201 respectively. A second air inlet 402 is formed between the outer wall of the first air inlet housing 41 or the second air inlet housing 42 and the inner wall of the air duct 1. The second air inlet 402 communicates with the first air passage hole 201. The air inlet housing 4 is composed of a first air inlet housing 41 and a second air inlet housing 42. The first air inlet housing 41 is provided with a first air inlet 401. After the first air inlet housing 41 is connected to the air duct assembly 2 or the air duct 1 through the second air inlet housing 42, an annular second air inlet 402 is formed between the outer wall of the air inlet housing 4 and the inner wall of the air duct 1.

[0053] In addition to the features of the above embodiments, this embodiment further specifies that the first air inlet housing 41 and the second air inlet housing 42 are integrally formed.

[0054] like Figure 7 and Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the outer wall of the first air inlet housing 41 is provided with an air passage groove 404, and a second air inlet 402 is formed between the side wall of the air passage groove 404 and the inner wall of the air duct 1. By setting the air passage groove 404, the airflow space can be increased, thereby ensuring that the air intake of the second air inlet 402 is more smooth.

[0055] like Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the second air inlet housing 42 is annular, the first air inlet housing 41 forms a second ventilation hole 405 on the side facing the air duct assembly 2, the first air inlet housing 41 has a first air inlet 401 on the end wall away from the air duct assembly 2, the air duct assembly 2 forms an air inlet column 2111 on the side away from the first air outlet 204, the air inlet column 2111 has a first air passage hole 201, the air inlet column 2111 passes through the first ventilation hole 403 and extends into the second ventilation hole 405, and the second ventilation hole 405 is connected to the first air inlet 401, the first air passage hole 201 and the first ventilation hole 403 respectively. By adopting the above structure, the air inlet column 2111 is located inside the first air inlet housing 41, and an annular first air inlet 401 is formed between the air duct assembly 2 and the first air inlet housing 41. This reduces the possibility of foreign objects entering the hair dryer through the first air inlet 401. In addition, the structure is simple and can make full use of the installation space, making the hair dryer structure compact.

[0056] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of first air inlets 401 is multiple, and the first air inlets 401 are combined to form an annular air inlet end.

[0057] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the handle 5 is provided with a third air inlet 501, and the third air inlet 501, the first mounting cavity 101, and the air passage are connected in sequence. The handle 5 is also provided with a third air inlet 501. The motor assembly 3 generates negative pressure in the air passage, causing external air to enter from the third air inlet 501 and flow through the handle 5 and the first mounting cavity 101 into the air passage. While increasing the air volume, the airflow will carry away the internal heat, thereby reducing the temperature rise of the body and playing a role in heat dissipation and cooling, so as to avoid the handle 5 and body of the hair dryer from overheating and causing inconvenience in use.

[0058] like Figure 2 and Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the handle 5 includes a handle body 51 and an air inlet bottom cover 52, one end of the handle body 51 is connected to the air duct 1, the other end of the handle body 51 is connected to the air inlet bottom cover 52, and the air inlet bottom cover 52 is provided with a third air inlet 501.

[0059] like Figures 1 to 3As shown, in addition to the features of the above embodiments, this embodiment further includes a drive assembly. The handle 5 is provided with a second mounting cavity 502, which is connected to the first mounting cavity 101 and the third air inlet 501. The drive assembly is disposed on the handle 5, and at least a portion of the drive assembly is located within the second mounting cavity 502. By placing the drive assembly within the second mounting cavity 502, the negative pressure airflow generated when the motor assembly 3 enters through the third air inlet 501 will flow through the second mounting cavity 502 and carry away the heat generated by the drive assembly, thereby creating a heat dissipation effect and enabling the drive assembly to operate more stably.

[0060] like Figure 3 and Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a second air passage hole 205 is provided on the side of the air duct assembly 2 away from the first air outlet 204, and the third air inlet 501, the second mounting cavity 502, the first mounting cavity 101, the second air passage hole 205 and the air passage are connected in sequence.

[0061] In addition to the features of the above embodiments, this embodiment further includes a first filter screen located within the second mounting cavity 502, which is disposed opposite to the third air inlet 501. The first filter screen allows for the filtration of air entering through the third air inlet 501.

[0062] like Figure 4 , Figure 6 and Figure 9As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the sidewall of the air duct assembly 2 has a first connecting portion 2112, the first connecting portion 2112 includes an inner ring 21121, a first connecting member 21122 and an outer ring 21123, the inner ring 21121 is sleeved on the outer wall of the air inlet column 2111, one end of the first connecting member 21122 near the air inlet shell 4 is connected to the outer ring 21123, and the other end of the first connecting member 21122 is connected to the inner ring 21121, the radius of the inner ring 21121 is smaller than the radius of the outer ring 21123, and the outer ring 21123 is connected to the air inlet shell 4. The cylinder 1 is adapted to the first connecting member 21122, which has a second air passage 205. The second air passage 205 is opposite to the first air passage 201. The first air passage 201 is arranged along the length of the side wall of the air inlet column 2111. The first connecting member 21122 and the side wall of the air inlet column 2111 enclose a first air passage cavity. The second air passage 205, the first air passage cavity and the first air passage 201 are connected in sequence. The side wall of the second ventilation hole 405 and the side wall of the air inlet column 2111 enclose a second air passage cavity. The first air inlet 401, the second air passage cavity and the first air passage 201 are connected in sequence. By adopting the above structure, the sidewall of the air inlet column 2111 is respectively enclosed by the sidewall of the first connector 21122 and the second ventilation hole 405 to form a first air passage cavity and a second air passage cavity. The first air passage hole 201 is connected to the first air passage cavity, and the first air inlet 401 is connected to the first air passage hole 201 through the second air passage cavity. Thus, the designer can adjust the volume of the first air passage cavity or the second air passage cavity by adjusting the structure of the sidewall of the first connector 21122 or the second ventilation hole 405, thereby making it easier to adjust the air volume flowing into each air inlet. Preferably, the air volume of the first air inlet 401 accounts for 70%~75%, and the air volume of the third air inlet 501 accounts for 15%~20%.

[0063] like Figure 11 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of first air passage holes 201 is multiple, and the multiple first air passage holes 201 are distributed at intervals along the circumferential direction of the air inlet column 2111.

[0064] like Figure 2 , Figure 5 , Figure 9 and Figure 10As shown, in addition to the features of the above embodiments, this embodiment further defines: the air duct assembly 2 includes an air inlet 21 and an air outlet 22. The air outlet 22 is disposed on the inner wall of the air duct 1 near the second mounting port, and the air inlet 21 is disposed on the side of the air outlet 22 near the first mounting port. The air inlet 21 and the air outlet 22 enclose each other to form a cavity. The air inlet 21 is provided with a first air passage hole 201 and a first accommodating cavity 202. The air outlet 22 is provided with a second accommodating cavity 203 and a first air outlet 204. The first air passage hole 201, the first accommodating cavity 202, the second accommodating cavity 203 and the first air outlet 204 are sequentially connected to form an air passage. The motor assembly 3 is disposed on the air inlet 21, and the motor assembly 3 is at least partially located in the first accommodating cavity 202. By setting the air inlet 21 and the air outlet 22 to form an air passage, the motor assembly 3 is set in the first accommodating cavity 202 of the air inlet 21. The negative pressure airflow generated by the motor assembly 3 can fully enter the air passage and be output in an orderly manner under the guidance of the air passage. The airflow of the outlet is smooth, thereby reducing airflow loss, avoiding the problem of air leakage around the air duct 1, and maximizing the air volume of the hair dryer's outlet.

[0065] like Figure 2 , Figure 5 , Figure 9 and Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the air inlet 21 includes an air inlet body 211 and a limiting housing 212. The two ends of the limiting housing 212 are respectively adapted to the air outlet 22 and the air inlet body 211. The air inlet body 211 is provided with a first air passage hole 201. The limiting housing 212 cooperates with the air inlet body 211 to form a first accommodating cavity 202. The motor assembly 3 is adapted to the limiting housing 212. The air inlet shell 4 passes through the first mounting port and connects to the air inlet body 211. By setting the limiting housing 212 to adapt and connect with the air outlet 22 and the air inlet body 211 respectively to form an air passage, and by limiting the motor assembly 3 through the limiting housing 212, the negative pressure airflow generated by the motor assembly 3 can fully enter the air passage and be output in an orderly manner under the guidance of the air passage, so as to maximize the air volume of the hair dryer's air outlet.

[0066] like Figure 5 and Figure 9As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the air inlet body 211 includes an air inlet column 2111, a limiting part 2113, and a first connecting part 2112. The limiting part 2113 is disposed on the side of the air inlet column 2111 away from the air inlet housing 4, and the limiting part 2113 is adapted to the limiting housing 212. The first connecting part 2112 is annular and is sleeved on the outer wall of the air inlet column 2111. The air inlet housing 4 partially passes through the first mounting port and connects to the first connecting part 2112. By adopting the above structure, the air inlet column 2111 can be easily adapted and assembled with the limiting housing 212 and the air inlet housing 4 through the setting of the limiting part 2113 and the first connecting part 2112, thereby improving production efficiency.

[0067] like Figure 7 , Figure 8 , Figure 9 and Figure 11 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a second connecting portion 421 is formed on the side of the air inlet housing 4 near the second mounting port; a slide 406 is provided on the outer side wall of the second connecting portion 421; the slide 406 is arranged along the circumferential direction of the second connecting portion 421; a stop member is formed on the bottom wall of the slide 406; the stop member and the side wall of the slide 406 form a limiting groove 407; and the inner side wall of the first connecting portion 2112 is provided with a fitting to the slide 406. The slider 2114 can slide along the slide rail 406. The slider 2114 has at least a first position and a second position relative to the slide rail 406. When the slider 2114 is in the first position, the slider 2114 abuts against the stop member and is located in the limiting groove 407. The air inlet 21 is locked with the second connecting part 421. When the slider 2114 is in the second position, the slider 2114 moves away from the stop member and the air inlet 21 can be separated from the second connecting part 421. By adopting the above structure, the air inlet housing 4 and the air inlet part 21 can be connected by the cooperation of the slide rail 406 and the slider 2114. The limiting groove 407 formed by the stop and the side wall of the slide rail 406 can limit the slider 2114. Thus, when the slider 2114 is located in the limiting groove 407, the slider 2114 can be locked to make the air inlet housing 4 and the air inlet part 21 tightly connected. When the slider 2114 is disengaged from the limiting groove 407, the air inlet housing 4 and the air inlet part 21 can be easily separated.

[0068] like Figure 7 and Figure 8As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the second air inlet housing 42 includes a second connecting portion 421 and a third connecting portion 422; the first air inlet housing 41 has a mounting groove 408 on the side near the second mounting port; the third connecting portion 422 is adapted to the mounting groove 408; and the second connecting portion 421 is disposed on the side of the third connecting portion 422 away from the first air inlet housing 41. By providing a mounting groove 408 adapted to the third connecting portion 422 on the first air inlet housing 41, the first air inlet housing 41 and the second air inlet housing 42 can be tightly connected, while making full use of the installation space and making the structure more compact.

[0069] like Figure 9 and Figure 11 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first connecting portion 2112 is provided with a plurality of protrusions 2115 on the side near the first air inlet housing 41, the plurality of protrusions 2115 are spaced apart along the circumferential direction of the first connecting portion 2112, and the plurality of protrusions 2115 abut against the peripheral wall of the first air inlet housing 41. By adopting the above structure, the protrusions 2115 play a limiting role in the first air inlet housing 41, thereby facilitating the alignment and locking of the slide 406 of the second connecting portion 421 and the slider 2114 of the first connecting portion 2112.

[0070] like Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the air outlet 22 includes an outer shell 221, an inner shell 222, and a second connector 223. The number of second connectors 223 is multiple. The outer shell 221 is provided with a second accommodating cavity 203. The inner shell 222 is at least partially located in the second accommodating cavity 203 and located on the side away from the first accommodating cavity 202. The two ends of the multiple second connectors 223 are respectively connected to the outer shell 221 and the inner shell 222. The inner shell 222, the outer shell 221, and the multiple second connectors 223 surround and form multiple first air outlets 204. By adopting the above structure, the outer shell 221, the inner shell 222, and the second connector 223 cooperate to form a plurality of first air outlets 204. The first air outlets 204 are flat and small, so the wind speed can be increased to a certain extent, making the wind stronger. In addition, the plurality of first air outlets 204 form an annular air supply end on the air outlet 22, which can better diffuse the negative pressure airflow generated by the motor assembly 3 and guide the air.

[0071] In addition to the features of the above embodiments, this embodiment further specifies that the outer shell 221, the inner shell 222 and the plurality of second connectors 223 are integrally formed.

[0072] like Figure 2 and Figure 3As shown, in addition to the features of the above embodiments, this embodiment further includes a heating component 6, which is disposed on the air outlet 22 and located within the second accommodating cavity 203. The heating component heats the negative pressure airflow generated by the motor assembly 3. The heating component 6, located at the air outlet of the air passage, reduces heat loss during airflow and minimizes the impact of temperature rise on the motor assembly 3.

[0073] like Figure 2 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further includes a heating component 7, which is disposed on the side wall of the air inlet 21 where the first air passage 201 is provided, and the heating component 7 is disposed opposite to the first air passage 201. By providing the heating component 7, the air entering through the first air inlet 401 and the second air inlet 402 can be filtered, effectively preventing hair, dust particles, and other debris from being sucked into the hair dryer and damaging the components, and keeping the inside of the hair dryer clean.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A hair dryer, characterized in that, include: The air duct (1) is provided with a first mounting cavity (101), and the air duct (1) is provided with a first mounting port and a second mounting port. The first mounting cavity (101) is connected to the first mounting port and the second mounting port respectively. The air duct assembly (2) is disposed on the air duct (1). The air duct assembly (2) is at least partially located in the first mounting cavity (101). The air duct assembly (2) is provided with a cavity. The two ends of the air duct assembly (2) are respectively provided with a first air passage hole (201) and a first air outlet (204). The first air passage hole (201), the cavity and the first air outlet (204) are connected in sequence to form an air passage. A motor assembly (3) is disposed on the air duct assembly (2), the motor assembly (3) is at least partially located in the air passage, and the motor assembly (3) is used to generate negative pressure in the air passage; An air inlet housing (4) is provided with a first air inlet (401). The air inlet housing (4) partially passes through the first mounting port and is connected to the air duct (1) and / or the air duct assembly (2). A second air inlet (402) is formed between the air inlet housing (4) and the air duct (1). The first air inlet (401) and the second air inlet (402) are respectively connected to the first air passage hole (201). Handle (5), the handle (5) is disposed on the air duct (1); The air inlet housing (4) includes a first air inlet housing (41) and a second air inlet housing (42). The first air inlet housing (41) is disposed on the second air inlet housing (42). The side of the second air inlet housing (42) away from the first air inlet housing (41) passes through the first mounting port and is connected to the air duct (1) and / or the air duct assembly (2). The first air inlet housing (41) is provided with a first air inlet (401). The second air inlet housing (42) is provided with a first ventilation hole (403). The first ventilation hole (403) is connected to the first air inlet (401) and the first air passage hole (201) respectively. The outer wall of the first air inlet housing (41) or the second air inlet housing (42) is connected to the inner wall of the air duct (1) to form a second air inlet (402). The second air inlet (402) is connected to the first air passage hole (201).

2. The hair dryer according to claim 1, characterized in that, The second air inlet housing (42) is annular. The first air inlet housing (41) forms a second ventilation hole (405) on the side facing the air duct assembly (2). The first air inlet housing (41) has a first air inlet (401) on the end wall away from the air duct assembly (2). The air duct assembly (2) forms an air inlet column (2111) on the side away from the first air outlet (204). The air inlet column (2111) has a first air passage hole (201). The air inlet column (2111) passes through the first ventilation hole (403) and extends into the second ventilation hole (405). The second ventilation hole (405) is connected to the first air inlet (401), the first air passage hole (201) and the first ventilation hole (403) respectively.

3. The hair dryer according to claim 2, characterized in that, The handle (5) is provided with a third air inlet (501), and the third air inlet (501), the first mounting cavity (101) and the air passage are connected in sequence.

4. The hair dryer according to claim 3, characterized in that, The sidewall of the air duct assembly (2) has a first connecting portion (2112), which includes an inner ring (21121), a first connecting member (21122), and an outer ring (21123). The inner ring (21121) is fitted onto the outer wall of the air inlet column (2111). One end of the first connecting member (21122) near the air inlet shell (4) is connected to the outer ring (21123), and the other end of the first connecting member (21122) is connected to the inner ring (21121). The radius of the inner ring (21121) is smaller than the radius of the outer ring (21123). The outer ring (21123) is adapted to the air duct (1). The component (21122) is provided with a second air passage (205), which is opposite to the first air passage (201). The first air passage (201) is provided along the length of the side wall of the air inlet column (2111). The first connecting component (21122) and the side wall of the air inlet column (2111) form a first air passage cavity. The second air passage (205), the first air passage cavity and the first air passage (201) are connected in sequence. The side wall of the second ventilation hole (405) and the side wall of the air inlet column (2111) form a second air passage cavity. The first air inlet (401), the second air passage cavity and the first air passage (201) are connected in sequence.

5. The hair dryer according to claim 1, characterized in that, The air duct assembly (2) includes an air inlet (21) and an air outlet (22). The air outlet (22) is disposed on the inner wall of the air duct (1) near the second mounting port. The air inlet (21) is disposed on the side of the air outlet (22) near the first mounting port. The air inlet (21) and the air outlet (22) enclose each other to form the cavity. The air inlet (21) is provided with a first air passage hole (201) and a first accommodating cavity (202). The air outlet (22) is provided with a second accommodating cavity (203) and a first air outlet (204). The first air passage hole (201), the first accommodating cavity (202), the second accommodating cavity (203) and the first air outlet (204) are sequentially connected to form the air passage. The motor assembly (3) is disposed on the air inlet (21). The motor assembly (3) is at least partially located in the first accommodating cavity (202).

6. The hair dryer according to claim 5, characterized in that, The air inlet (21) includes an air inlet body (211) and a limiting housing (212). The two ends of the limiting housing (212) are respectively adapted to the air outlet (22) and the air inlet body (211). The air inlet body (211) is provided with the first air passage hole (201). The limiting housing (212) and the air inlet body (211) cooperate to form the first accommodating cavity (202). The motor assembly (3) is adapted to the limiting housing (212). The air inlet shell (4) passes through the first mounting port and is connected to the air inlet body (211).

7. The hair dryer according to claim 6, characterized in that, The air inlet body (211) includes an air inlet column (2111), a limiting part (2113), and a first connecting part (2112). The limiting part (2113) is disposed on the side of the air inlet column (2111) away from the air inlet shell (4). The limiting part (2113) is adapted to the limiting shell (212). The first connecting part (2112) is annular and is sleeved on the outer wall of the air inlet column (2111). The air inlet shell (4) partially passes through the first mounting port and is connected to the first connecting part (2112).

8. The hair dryer according to claim 7, characterized in that, The air inlet housing (4) has a second connecting portion (421) on the side near the second mounting port. The outer wall of the second connecting portion (421) is provided with a slide rail (406). The slide rail (406) is arranged along the circumferential direction of the second connecting portion (421). The bottom wall of the slide rail (406) is provided with a stop member. The stop member and the side wall of the slide rail (406) form a limiting groove (407). The inner wall of the first connecting portion (2112) is provided with a slider (2114) adapted to the slide rail (406). The slider (2114) can move along the slide rail. The slide (406) slides, and the slider (2114) has at least a first position and a second position relative to the slide (406). When the slider (2114) is in the first position, the slider (2114) abuts against the stop member. The slider (2114) is located in the limiting groove (407). The air inlet (21) is locked with the second connecting part (421). When the slider (2114) is in the second position, the slider (2114) moves away from the stop member. The air inlet (21) and the second connecting part (421) can be separated.

9. The hair dryer according to claim 5, characterized in that, The air outlet (22) includes an outer shell (221), an inner shell (222), and a second connector (223). There are multiple second connectors (223). The outer shell (221) is provided with a second accommodating cavity (203). The inner shell (222) is at least partially located in the second accommodating cavity (203) and is located on the side away from the first accommodating cavity (202). The two ends of the multiple second connectors (223) are respectively connected to the outer shell (221) and the inner shell (222). The inner shell (222), the outer shell (221), and the multiple second connectors (223) enclose and form multiple first air outlets (204).

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