Handle assembly and electric hair drier

Abstract

The utility model relates to a handle assembly and an electric hair drier, and belongs to the field of electric hair driers, the handle assembly comprises a handle shell, the handle shell is provided with an installation cavity, the handle shell is provided with a first air outlet, the first air outlet is communicated with the installation cavity, and the handle shell is provided with a first installation opening; the circuit board is arranged on the handle shell and is positioned in the mounting cavity; the first air inlet shell part is arranged on the handle shell and located at the first installation opening, the first air inlet shell part is provided with a first air inlet, and / or the first air inlet shell part and the handle shell are enclosed to form the first air inlet; and the first air inlet, the mounting cavity and the first air outlet are sequentially communicated. According to the handle assembly disclosed by the invention, the first air inlet, the mounting cavity and the first air outlet are sequentially communicated, so that external cold air enters the mounting cavity from the air inlet and then takes away heat generated by components such as a circuit board and the like.

Description

Technical Field

[0001] This utility model relates to the field of hair dryers, and in particular to a handle assembly and a hair dryer. Background Technology

[0002] In small household appliances such as hair dryers, which operate at high temperatures and power, the circuit board, as the core control unit, operates in a high-temperature environment for extended periods. Due to the compact structure and limited internal space of hair dryers, heat dissipation of the circuit board is particularly critical. However, traditional hair dryers lack dedicated heat dissipation designs for the circuit board, or their designs are ineffective, impacting product lifespan. Therefore, improvements are needed to address this shortcoming in hair dryers. Utility Model Content

[0003] Therefore, it is necessary to provide a handle assembly and a hair dryer to address the problem that the limited cross-sectional area of ​​the first air inlet at a single location leads to insufficient airflow per unit time, resulting in low airflow intensity.

[0004] A handle assembly includes: a handle housing, the handle housing having a mounting cavity, the handle housing having a first air outlet communicating with the mounting cavity, and the handle housing having a first mounting opening; a circuit board disposed on the handle housing and located within the mounting cavity; and a first air inlet housing disposed on the handle housing and located at the first mounting opening, the first air inlet housing having a first air inlet and / or the first air inlet housing and the handle housing enclosing each other to form a first air inlet, the first air inlet, the mounting cavity, and the first air outlet being sequentially connected.

[0005] The first aspect of this application discloses a handle assembly. A circuit board is mounted within the mounting cavity of the handle assembly and fixed in an embedded manner, reducing the risk of displacement of the circuit board due to external factors such as vibration. A first air inlet, the mounting cavity, and a first air outlet are sequentially connected to form a directional airflow channel. External cold air enters the mounting cavity through the air inlet and continuously flows over the surface of the circuit board, carrying away heat generated by the circuit board and other components. This effectively prevents heat accumulation in the enclosed space, significantly reducing the long-term operating temperature of the circuit board, resulting in excellent heat dissipation and extending the product's lifespan. The first air outlet allows cold air to carry heat away from the circuit board and exit through the outlet, preventing heat accumulation in the enclosed space and effectively preventing component aging or malfunction caused by localized high temperatures on the circuit board.

[0006] In one embodiment, the first air inlet is located on the side and / or end of the first air inlet housing. By positioning the first air inlet on the side and / or end of the first air inlet housing, the effective air intake area is significantly expanded, the flow restriction of a single opening is reduced, and the total air intake per unit time is significantly increased, thereby improving the cooling effect of the circuit board.

[0007] In one embodiment, the first mounting port and the first air outlet are located at opposite ends of the handle housing. The first mounting port facilitates the assembly of the first air inlet housing. With the first mounting port and the first air outlet located at opposite ends of the handle housing, airflow entering from the first air inlet of the first air inlet housing flows along a straight path through the mounting cavity and directly across the circuit board surface, reducing backflow and resulting in high fluid transport efficiency.

[0008] In one embodiment, a wiring structure is further included. This wiring structure is disposed on the first air inlet housing, and has a wiring hole that extends through the structure and communicates with the mounting cavity. The wiring structure and the communication between its wiring hole and the mounting cavity facilitate wiring arrangement and connection.

[0009] In one embodiment, one of the handle housing and the first air inlet housing is provided with a first locking member, and the other of the handle housing and the first air inlet housing is provided with a first adapter portion, the first locking member being adapted to the first adapter portion. One of the handle housing and the first air inlet housing is provided with a second locking member, and the other of the handle housing and the first air inlet housing is provided with a second adapter portion, the second locking member being adapted to the second adapter portion. This dual locking mechanism, with the first locking member adapting to the first adapter portion and the second locking member adapting to the second adapter portion, creates multi-directional constraints, avoiding the risk of localized stress concentration or loosening that may occur with single-point locking, ensuring a more secure connection between the handle housing and the first air inlet housing. Furthermore, disassembly and assembly require no tools, making assembly simple and convenient.

[0010] In one embodiment, the first locking member is formed on the handle housing, the first locking member being a first latch, and the first adapter portion is disposed on the first air inlet housing, the first adapter portion being a first bayonet, the first latch being adapted to the first bayonet. The adaptation design of the latch and the first bayonet forms a rigid mechanical connection, ensuring a tight fixation between the handle housing and the air inlet housing, preventing loosening or separation of the handle housing and the first air inlet housing due to vibration or external impact. Furthermore, the components can be separated and assembled without the need for tools, making assembly simple and convenient.

[0011] In one embodiment, a second locking member is formed on the handle housing. The second locking member is a raised rib, and a second adapter portion is disposed on the first air inlet housing. The second adapter portion is a second latch, and the raised rib is adapted to the second latch. By adapting the raised rib to the second latch, the connection rigidity between the handle housing and the air inlet housing is enhanced, the ability to resist external stress is strong, and misalignment between the handle housing and the air inlet housing is avoided.

[0012] In one embodiment, the first air inlet housing includes an air inlet side housing and an air inlet end housing. The air inlet side housing is disposed on the handle housing. The air inlet side housing has multiple first adapter parts that can be adapted to the handle housing, and a second adapter part that can be adapted to the handle housing. The air inlet side housing has a first air inlet, and the air inlet end housing is disposed on the air inlet side housing. Airflow is introduced from different directions through the first air inlets of the air inlet side housing and the air inlet end housing, improving the airflow filling efficiency of the air passage and ensuring stable airflow output, thus ensuring stable air supply in high-efficiency mode. The multiple first and second adapter parts on the air inlet side housing form a multi-directional engagement with the handle housing, enhancing the connection stability between the air inlet housing and the handle housing.

[0013] In one embodiment, a raised rib is further included, which is disposed on the air inlet side shell and surrounds the air inlet side shell, abutting against the handle housing. The raised rib improves the overall structural strength.

[0014] In one embodiment, there are multiple first air inlets, all of which communicate with the mounting cavity and are spaced apart circumferentially along the air inlet side shell. By having multiple first air inlets communicate with the mounting cavity, the effective air intake area is significantly expanded, reducing the flow limitation of a single first air inlet and significantly increasing the total air intake per unit time. Furthermore, reducing the size of a single first air inlet prevents external dust and other particles from entering the handle housing and affecting its function.

[0015] In one embodiment, the first locking member is located at the first mounting port. With the first locking member positioned at the first mounting port, the first air inlet housing can be automatically positioned and locked during assembly, resulting in easy assembly and a more secure fit.

[0016] In one embodiment, the second locking member is located at the first mounting port. With the second locking member positioned at the first mounting port, the first air inlet housing can be automatically positioned and locked during assembly, resulting in easy assembly and a more secure fit.

[0017] In one embodiment, both the first locking member and the second locking member are second latches, and both the first adapter and the second adapter are third latches, with the second latch being adapted to the third latch. The adaptation of the second latch to the third latch ensures a reliable connection between the handle housing and the air inlet housing.

[0018] In one embodiment, the first air inlet includes a first airflow port and a second airflow port, both of which are connected to the mounting cavity. The first and second airflow ports are located at different positions on the first air inlet housing. The connection of both the first and second airflow ports to the mounting cavity allows for smooth airflow. The different positions of the first and second airflow ports on the air inlet housing introduce airflow from different directions, expanding the effective airflow coverage area, reducing airflow blind spots in a single airflow direction, and significantly increasing the airflow volume per unit time.

[0019] In one embodiment, the first airflow port is located on the side of the first air inlet housing and is positioned near the end of the first air inlet housing. By positioning the first airflow port near the end of the first air inlet housing, the user is prevented from blocking the first airflow port when holding the handle assembly, allowing the user more grip space and improving the user experience.

[0020] In one embodiment, the second airflow inlet is located at the end of the first air inlet housing. By positioning the second airflow inlet at the end of the first air inlet housing, it is possible to prevent the user from blocking the first airflow inlet when holding the handle assembly, thus providing the customer with more grip space and maintaining continuous airflow.

[0021] In one embodiment, there are multiple first air inlets, all located on the side of the first air inlet housing, and all communicating with the mounting cavity. By having multiple first air inlets connected to the mounting cavity, the effective air intake area is significantly expanded, reducing the flow limitation of a single first air inlet and significantly increasing the total air intake per unit time. This ensures the circuit board temperature remains within acceptable limits, extending the product's lifespan. Furthermore, it prevents external dust and other particles from entering the handle housing and affecting its functionality.

[0022] In one embodiment, there are multiple second air inlets, all located at the ends of the first air inlet housing, and all communicating with the mounting cavity. By having multiple second air inlets connected to the mounting cavity, the effective air intake area is significantly expanded, reducing the flow limitation of a single second air inlet and significantly increasing the total air intake per unit time. This ensures the circuit board temperature remains within acceptable limits, extending the product's lifespan. Furthermore, it prevents external dust and other particles from entering the handle housing and affecting its functionality.

[0023] A hair dryer includes: the aforementioned handle assembly; an air duct assembly disposed on the handle assembly and located at a first air outlet, the air duct assembly having an air passage communicating with the first air outlet and a second air outlet communicating with the air passage; and a second air inlet housing disposed on the air duct assembly, the second air inlet housing having a second air inlet communicating with the air passage.

[0024] The second aspect of this application discloses a hair dryer that, by setting a first air inlet in the handle assembly and a second air inlet in the air duct assembly, allows airflow to enter the air passage from two independent directions simultaneously, significantly increasing the amount of air drawn in per unit time and noticeably enhancing the airflow intensity. This design increases the local negative pressure zone inside the air duct, especially in high-power airflow mode, meeting higher performance requirements such as strong air intake capacity supporting stable output at higher wind speeds, significantly improving drying efficiency, and providing a better user experience.

[0025] In one embodiment, the second air inlet is located on the side and / or end of the second air inlet housing. Positioning the second air inlet on the side of the second air inlet housing improves airflow. Positioning the second air inlet at the end of the second air inlet housing results in a more harmonious and aesthetically pleasing overall appearance.

[0026] In one embodiment, the air duct assembly has a second mounting port located at its end, and a second air inlet housing is disposed on the air duct assembly and located at the second mounting port. The location of the second air inlet housing at the second mounting port facilitates its assembly. Furthermore, the second mounting port at the end of the air duct assembly allows for a larger airflow capacity within a consistent air duct assembly size, resulting in better practicality. Attached Figure Description

[0027] Figure 1 A 3D view of the handle assembly;

[0028] Figure 2 An exploded view of the handle assembly;

[0029] Figure 3 This is a first sectional view of the handle assembly;

[0030] Figure 4 This is a second sectional view of the handle assembly;

[0031] Figure 5 A cross-sectional view of the handle housing and the first air inlet housing;

[0032] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0033] Figure 7 This is a cross-sectional view of the handle housing;

[0034] Figure 8 A perspective view of the first air inlet housing according to one embodiment;

[0035] Figure 9 This is a perspective view of the first air inlet housing in the second embodiment;

[0036] Figure 10 A perspective view of a hair dryer according to one embodiment;

[0037] Figure 11 A cross-sectional view of a hair dryer according to an embodiment;

[0038] Figure 12 for Figure 11 Enlarged view at point B in the middle;

[0039] Figure 13 A perspective view of the hair dryer according to two embodiments;

[0040] Figure 14 This is a cross-sectional view of the hair dryer according to two embodiments;

[0041] Figure 15 Cross-sectional views of the hair dryers according to three embodiments;

[0042] Figure 16 This is a perspective view of a hair dryer according to three embodiments.

[0043] The correspondence between the reference numerals and the component names is as follows:

[0044] 1 Handle housing, 11 First locking element, 12 Second locking element, 101 Mounting cavity, 102 First air outlet, 103 First mounting port;

[0045] 2. Circuit boards;

[0046] 3 First air inlet housing, 31 Air inlet side housing, 32 Air inlet end housing, 33 Protruding rib, 301 First air inlet, 3011 First airflow port, 3012 Second airflow port, 302 First adapter, 303 Second adapter.

[0047] 4-wire connection structure, 401 wire through hole;

[0048] 100 handle assembly;

[0049] 200 air duct assembly, 2001 air passage, 2002 second air outlet, 2003 second mounting port;

[0050] 300 Second air inlet housing, 3001 Second air inlet. Detailed Implementation

[0051] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model 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.

[0052] Many specific details are set forth in the following description in order to provide 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 1-5 As shown, this embodiment discloses a handle assembly, including: a handle housing 1, the handle housing 1 having a mounting cavity 101, the handle housing 1 having a first air outlet 102 communicating with the mounting cavity 101, the handle housing 1 having a first mounting opening 103; a circuit board 2, the circuit board 2 being disposed on the handle housing 1 and located within the mounting cavity 101; a first air inlet housing 3, the first air inlet housing 3 being disposed on the handle housing 1 and located at the first mounting opening 103, the first air inlet housing 3 having a first air inlet 301 and / or the first air inlet housing 3 and the handle housing 1 enclosing each other to form a first air inlet 301, the first air inlet 301, the mounting cavity 101 and the first air outlet 102 being sequentially connected.

[0055] The first aspect of this application discloses a handle assembly. A circuit board 2 is mounted within a mounting cavity 101 of the handle assembly and fixed in an embedded manner, reducing the risk of displacement of the circuit board 2 due to external factors such as vibration. A first air inlet 301, the mounting cavity 101, and a first air outlet 102 are sequentially connected to form a directional airflow channel. External cold air enters the mounting cavity 101 through the air inlet and continuously flows over the surface of the circuit board 2, carrying away the heat generated by the components on the circuit board 2. This effectively prevents heat accumulation in the enclosed space, significantly reducing the long-term operating temperature of the circuit board 2, resulting in good heat dissipation and extending the product's lifespan. The first air outlet 102 allows cold air to carry heat away from the circuit board 2 and be discharged through the outlet, preventing heat accumulation in the enclosed space and effectively preventing component aging or malfunction caused by localized high temperatures on the circuit board 2.

[0056] like Figure 8 and Figure 9 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the first air inlet 301 is located on the side and / or end of the first air inlet housing 3. By positioning the first air inlet 301 on the side and / or end of the first air inlet housing 3, the effective air intake area is significantly expanded, the flow restriction of a single opening is reduced, and the total air intake per unit time is significantly increased, thereby improving the cooling effect of the circuit board 2.

[0057] like Figure 3 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first mounting port 103 and the first air outlet 102 are respectively located at both ends of the handle housing 1. The first mounting port 103 facilitates the assembly of the first air inlet housing 3. With the first mounting port 103 and the first air outlet 102 located at both ends of the handle housing 1, the airflow entering from the first air inlet 301 of the first air inlet housing 3 passes through the mounting cavity 101 along a straight path and flows directly over the surface of the circuit board 2, reducing backflow and achieving high fluid transport efficiency.

[0058] like Figure 1-4 As shown, in addition to the features of the above embodiments, this embodiment further includes a wiring structure 4, which is disposed on the first air inlet housing 3. The wiring structure 4 has a wiring hole 401 that passes through it and communicates with the mounting cavity 101. The wiring structure 4 and its wiring hole 401 communicating with the mounting cavity 101 facilitate wiring arrangement and connection.

[0059] like Figure 5 and Figure 6As shown, in addition to the features of the above embodiments, this embodiment further specifies that: one of the handle housing 1 and the first air inlet housing 3 is provided with a first locking member 11, and the other of the handle housing 1 and the first air inlet housing 3 is provided with a first adapter 302, wherein the first locking member 11 is adapted to the first adapter 302; one of the handle housing 1 and the first air inlet housing 3 is provided with a second locking member 12, and the other of the handle housing 1 and the first air inlet housing 3 is provided with a second adapter 303, wherein the second locking member 12 is adapted to the second adapter 303. Through the adaptation of the first locking member 11 to the first adapter 302 and the second locking member 12 to the second adapter 303, this dual locking mechanism forms multi-directional constraints, avoiding the risk of local stress concentration or loosening that may occur with single-point locking, ensuring a more secure connection between the handle housing 1 and the first air inlet housing 3. Furthermore, disassembly and assembly require no tools, making assembly simple and convenient.

[0060] like Figure 5 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first locking member 11 is formed on the handle housing 1, the first locking member 11 is a first locking block, the first adapter 302 is disposed on the first air inlet housing 3, the first adapter 302 is a first bayonet, and the first locking block is adapted to the first bayonet. A rigid mechanical connection is formed through the adaptation design of the locking block and the first bayonet, ensuring the tight fixation of the handle housing 1 and the air inlet housing 3, and preventing loosening or separation of the handle housing 1 and the first air inlet housing 3 due to vibration or external impact. Moreover, the components can be separated and assembled without the aid of tools, making assembly simple and convenient.

[0061] like Figure 5 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a second locking member 12 is formed on the handle housing 1, the second locking member 12 is a rib, a second adapter 303 is disposed on the first air inlet housing 3, the second adapter 303 is a second latch, and the rib is adapted to the second latch. By adapting the rib to the second latch, the connection rigidity between the handle housing 1 and the air inlet housing is enhanced, the ability to resist external stress is strong, and misalignment between the handle housing 1 and the air inlet housing is avoided.

[0062] like Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the first locking member 11 is located at the first mounting port 103. With the first locking member 11 located at the first mounting port 103, the first air inlet housing 3 can be automatically positioned and locked during alignment and assembly, resulting in low assembly difficulty and relatively firm assembly.

[0063] like Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the second locking member 12 is located at the first mounting port 103. With the second locking member 12 located at the first mounting port 103, the first air inlet housing 3 can be automatically positioned and locked during assembly, resulting in low assembly difficulty and a relatively secure assembly.

[0064] like Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first air inlet housing 3 includes an air inlet side housing 31 and an air inlet end housing 32. The air inlet side housing 31 is disposed on the handle housing 1. The air inlet side housing 31 has a plurality of first adapter parts 302 that can be adapted to the handle housing 1. The air inlet side housing 31 has a second adapter part 303 that can be adapted to the handle housing 1. The air inlet side housing 31 has a first air inlet 301. The air inlet end housing 32 is disposed on the air inlet side housing 31. Airflow is introduced from different directions through the first air inlets 301 of the air inlet side housing 31 and the air inlet end housing 32, improving the airflow filling efficiency of the air passage 2001, ensuring stable airflow output, and ensuring stable air supply in high-efficiency mode. The plurality of first adapter parts 302 and second adapter parts 303 on the side housing of the air inlet side housing 31 form a multi-directional engagement with the handle housing 1, enhancing the connection stability between the air inlet housing and the handle housing 1.

[0065] like Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further includes a raised rib 33, which is disposed on the air inlet side shell 31, surrounds the air inlet side shell 31, and abuts against the handle outer shell 1. The raised rib 33 improves the overall structural strength.

[0066] like Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of first air inlets 301 is multiple, all of which are connected to the mounting cavity 101, and the multiple first air inlets 301 are spaced apart circumferentially along the air inlet side shell 31. By having multiple first air inlets 301 connected to the mounting cavity 101, the effective air intake area is significantly expanded, the flow restriction of a single first air inlet 301 is reduced, and the total air intake per unit time is significantly increased. Moreover, the size of a single first air inlet 301 is reduced, which can prevent external dust and other particles from entering the handle housing 1 and affecting its function.

[0067] In addition to the features of the above embodiments, this embodiment further specifies that: the first locking member 11 and the second locking member 12 are both second latches, the first adapter 302 and the second adapter 303 are both third latches, and the second latches are adapted to the third latches. Through the adaptation of the second latches and the third latches, the connection between the handle housing 1 and the air inlet housing is reliably secured.

[0068] Example 2

[0069] like Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the first air inlet 301 is located on the side of the first air inlet housing 3. By positioning the first air inlet 301 on the side of the first air inlet housing 3, the effective air intake area is significantly expanded, the flow restriction of a single opening is reduced, and the total air intake per unit time is significantly increased, thereby improving the cooling effect of the circuit board 2.

[0070] Example 3

[0071] like Figure 11-12 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the first air inlet 301 is located at the end of the first air inlet housing 3. By positioning the first air inlet 301 at the end of the first air inlet housing 3, the effective air intake area is significantly expanded, the flow restriction of a single opening is reduced, and the total air intake per unit time is significantly increased, thereby improving the cooling effect of the circuit board 2.

[0072] Example 4

[0073] like Figure 13 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the first air inlet 301 is located on the side and end of the first air inlet housing 3. By positioning the first air inlet 301 on the side and end of the first air inlet housing 3, the effective air intake area is significantly expanded, the flow restriction of a single opening is reduced, and the total air intake per unit time is significantly increased, thereby improving the cooling effect of the circuit board 2.

[0074] Example 5

[0075] like Figure 11-13As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first air inlet 301 includes a first airflow port 3011 and a second airflow port 3012, both of which are connected to the mounting cavity 101. The first airflow port 3011 and the second airflow port 3012 are located at different positions on the first air inlet housing 3. Because both the first airflow port 3011 and the second airflow port 3012 are connected to the mounting cavity 101, airflow can be smoothly introduced. Since the first airflow port 3011 and the second airflow port 3012 are located at different positions on the air inlet housing, airflow is introduced from different directions, expanding the effective airflow coverage area, reducing the airflow blind zone in a single airflow direction, and significantly increasing the airflow volume per unit time.

[0076] like Figure 11-13 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first airflow port 3011 is located on the side of the first air inlet housing 3 and is disposed near the end of the first air inlet housing 3. By disposing the first airflow port 3011 near the end of the first air inlet housing 3, the user is prevented from blocking the first airflow port 3011 when holding the handle assembly, giving the customer more grip space and improving the user experience.

[0077] like Figure 11-13 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the second airflow port 3012 is located at the end of the first air inlet housing 3. By positioning the second airflow port 3012 at the end of the first air inlet housing 3, it is possible to prevent the user from blocking the first airflow port 3011 when holding the handle assembly, thus providing the customer with more grip space and maintaining continuous airflow.

[0078] like Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of the first airflow ports 3011 is multiple, all of the multiple first airflow ports 3011 are located on the side of the first air inlet housing 3, and all of the multiple first airflow ports 3011 are connected to the mounting cavity 101. By having multiple first airflow ports 3011 connected to the mounting cavity 101, the effective airflow area is significantly expanded, the flow limit of a single first airflow port 3011 is reduced, and the total airflow per unit time is significantly increased, ensuring that the temperature of the circuit board 2 does not exceed the range and extending the product's service life. Furthermore, it can prevent external dust and other particles from entering the handle housing 1 and affecting its function.

[0079] like Figure 9As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of second air inlets 3012 is multiple, and all multiple second air inlets 3012 are located at the end of the first air inlet housing 3, and all multiple second air inlets 3012 are connected to the mounting cavity 101. By having multiple second air inlets 3012 connected to the mounting cavity 101, the effective air intake area is significantly expanded, the flow limit of a single second air inlet 3012 is reduced, and the total air intake per unit time is significantly increased, ensuring that the temperature of the circuit board 2 does not exceed the range and extending the product's service life. Furthermore, it can prevent external dust and other particles from entering the handle housing 1 and affecting its function.

[0080] Example 6

[0081] like Figure 10-16 As shown, this embodiment discloses a hair dryer, including: the aforementioned handle assembly 100; an air duct assembly 200, wherein the air duct assembly 200 is disposed on the handle assembly 100, the air duct assembly 200 is located at the first air outlet 102, the air duct assembly 200 has an air passage 2001 communicating with the first air outlet 102, the air duct assembly 200 has a second air outlet 2002 communicating with the air passage 2001; and a second air inlet housing 300, wherein the second air inlet housing 300 is disposed on the air duct assembly 200, the second air inlet housing 300 has a second air inlet 3001 communicating with the air passage 2001.

[0082] The second aspect of this application discloses a hair dryer that, by setting a first air inlet 301 in the handle assembly 100 and a second air inlet 3001 in the air duct assembly 2000, allows airflow to enter the air passage 2001 simultaneously from two independent directions, significantly increasing the amount of air drawn in per unit time and noticeably enhancing the airflow intensity. This design increases the local negative pressure zone inside the air duct, especially in high-power airflow mode, meeting higher performance requirements such as strong air intake capacity supporting stable output at higher wind speeds, significantly improving drying efficiency, and providing a better user experience.

[0083] like Figure 14-16 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the second air inlet 3001 is located on the side and / or end of the second air inlet housing 300. By positioning the second air inlet 3001 on the side of the second air inlet housing 300, the air intake effect is better. By positioning the second air inlet 3001 at the end of the second air inlet housing 300, the overall design is more harmonious and aesthetically pleasing.

[0084] like Figure 10 and Figure 14As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the air duct assembly 200 is provided with a second mounting port 2003, the second mounting port 2003 is located at the end of the air duct assembly 200, and the second air inlet housing 300 is disposed on the air duct assembly 200 and located at the second mounting port 2003. The location of the second air inlet housing 300 at the second mounting port 2003 facilitates the assembly of the second air inlet housing 300. Because the second mounting port 2003 is located at the end of the air duct assembly 200, the air passage 2001 can accommodate a larger airflow while maintaining a consistent size for the air duct assembly 200, resulting in better practicality.

[0085] Example 7

[0086] like Figure 13 and Figure 14 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the second air inlet 3001 is located on the side of the second air inlet housing 300.

[0087] Example 8

[0088] like Figure 15 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the second air inlet 3001 is located at the end of the second air inlet housing 300.

[0089] Example 9

[0090] like Figure 16 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the second air inlet 3001 is located on the side and end of the second air inlet housing 300.

[0091] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A handle assembly, characterized in that, include: Handle housing (1), the handle housing (1) is provided with a mounting cavity (101), the handle housing (1) is provided with a first air outlet (102), the first air outlet (102) is connected to the mounting cavity (101), and the handle housing (1) is provided with a first mounting port (103); Circuit board (2), said circuit board (2) is disposed on the handle housing (1) and located in the mounting cavity (101); The first air inlet housing (3) is disposed on the handle housing (1) and located at the first mounting port (103). The first air inlet housing (3) has a first air inlet (301) and / or the first air inlet housing (3) and the handle housing (1) enclose to form a first air inlet (301). The first air inlet (301), the mounting cavity (101) and the first air outlet (102) are connected in sequence.

2. The handle assembly according to claim 1, characterized in that, The first air inlet (301) is located on the side and / or end of the first air inlet housing (3); And / or the first mounting port (103) and the first air outlet (102) are located at both ends of the handle housing (1); And / or also includes a threading structure (4), which is disposed on the first air inlet housing (3), the threading structure (4) having a threading hole (401) and the threading hole (401) penetrating the threading structure (4), the threading hole (401) communicating with the mounting cavity (101).

3. The handle assembly according to claim 1, characterized in that, One of the handle housing (1) and the first air inlet housing (3) is provided with a first locking member (11), and the other of the handle housing (1) and the first air inlet housing (3) is provided with a first adapter (302). The first locking member (11) is adapted to the first adapter (302). One of the handle housing (1) and the first air inlet housing (3) is provided with a second locking member (12), and the other of the handle housing (1) and the first air inlet housing (3) is provided with a second adapter (303). The second locking member (12) is adapted to the second adapter (303).

4. The handle assembly according to claim 3, characterized in that, The first locking member (11) is formed on the handle housing (1), the first locking member (11) is a first locking block, the first adapter (302) is disposed on the first air inlet housing (3), the first adapter (302) is a first latch, and the first locking block is adapted to the first latch; The second locking member (12) is formed on the handle housing (1), the second locking member (12) is a rib, the second locking member (12) is located at the first mounting port (103), the second adapter (303) is disposed on the first air inlet housing (3), the second adapter (303) is a second latch, and the rib is adapted to the second latch; And / or the first locking member (11) is located at the first mounting port (103); And / or the second locking member (12) is located at the first mounting port (103); Alternatively, the first locking member (11) and the second locking member (12) may both be second locking blocks, and the first adapter (302) and the second adapter (303) may both be third locking slots, with the second locking block being adapted to the third locking slot.

5. The handle assembly according to claim 1, characterized in that, The first air inlet housing (3) includes an air inlet side housing (31) and an air inlet end housing (32). The air inlet side housing (31) is disposed on the handle housing (1). The air inlet side housing (31) is provided with a plurality of first adapter parts (302) that can be adapted to the handle housing (1). The air inlet side housing (31) is provided with a second adapter part (303) that can be adapted to the handle housing (1). The air inlet side housing (31) is provided with a first air inlet (301). The air inlet end housing (32) is disposed on the air inlet side housing (31).

6. The handle assembly according to claim 5, characterized in that, It also includes a raised rib (33), which is disposed on the air inlet side shell (31), the raised rib (33) surrounds the air inlet side shell (31), and the raised rib (33) abuts against the handle shell (1); And / or there are multiple first air inlets (301), all of which are connected to the mounting cavity (101) and are spaced apart along the circumferential direction of the air inlet side shell (31).

7. The handle assembly according to claim 1, characterized in that, The first air inlet (301) includes a first air passage (3011) and a second air passage (3012). Both the first air passage (3011) and the second air passage (3012) are connected to the mounting cavity (101). The first air passage (3011) and the second air passage (3012) are located at different positions on the first air inlet housing (3).

8. The handle assembly according to claim 7, characterized in that, The first air inlet (3011) is located on the side of the first air inlet housing (3) and the first air inlet (3011) is disposed near the end of the first air inlet housing (3); And / or the second air inlet (3012) is located at the end of the first air inlet housing (3); And / or there are multiple first air inlets (3011), all of which are located on the side of the first air inlet housing (3), and all of which are connected to the mounting cavity (101). And / or there are multiple second air inlets (3012), all of which are located at the end of the first air inlet housing (3) and are connected to the mounting cavity (101).

9. A hair dryer, characterized in that, include: The handle assembly (100) as described in any one of claims 1-8; A duct assembly (200) is disposed on the handle assembly (100). The duct assembly (200) is located at the first air outlet (102). The duct assembly (200) is provided with an air passage (2001) communicating with the first air outlet (102). The duct assembly (200) is provided with a second air outlet (2002) communicating with the air passage (2001). The second air inlet housing (300) is disposed on the air duct assembly (200) and has a second air inlet (3001) which is connected to the air passage (2001).

10. The hair dryer according to claim 9, characterized in that, The second air inlet (3001) is located on the side and / or end of the second air inlet housing (300); And / or the air duct assembly (200) is provided with a second mounting port (2003), the second mounting port (2003) is located at the end of the air duct assembly (200), and the second air inlet housing (300) is disposed on the air duct assembly (200) and located at the second mounting port (2003).

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