Hair drier

Abstract

The utility model relates to the technical field of hair driers, in particular to a hair drier which comprises a machine body and a replaceable filtering assembly, an air inlet part is arranged at one end of the machine body, an inner air inlet is formed in the air inlet part, the filtering assembly is detachably connected with the air inlet part, and air enters the machine body through the filtering assembly and the inner air inlet. The filter assembly can be replaced, and the filter assembly is detachably connected with the air inlet part, so that the filter assembly can be conveniently separated from the air inlet part during ash removal so as to directly replace a new filter assembly, and the filter assembly can be replaced and cleaned immediately after being disassembled. When an existing high-speed air blower brings high air speed, dust and impurities in the using environment are easily adsorbed on an air inlet mesh cover and enter the air blower in the using process, and the performance and safety problems that a motor is damaged, internal PCB devices are oxidized and the like are caused are solved. The detachable filter element is additionally arranged between the air inlet net cover and the external air inlet, so that the service life of the blower is greatly prolonged, and performance reduction and safety risks caused by dust accumulation are reduced.

Description

Technical Field

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

[0002] High-speed hair dryers currently available utilize high-speed brushless motors, offering high airflow and compact size, significantly reducing drying time and improving the user experience, making them increasingly popular among consumers. However, while the high airflow of high-speed hair dryers increases drying efficiency, it also means a significant increase in dust intake. If environmental dust cannot be effectively blocked from entering the high-speed hair dryer, it will negatively impact its airflow efficiency and lifespan. However, the dust filtration structures of existing high-speed hair dryers are too simple, failing to effectively prevent dust from entering while maintaining airflow efficiency. During use, dust and impurities from the environment easily adhere to the air inlet mesh and can even enter the hair dryer's interior, leading to motor damage, oxidation of internal circuit board components, and other performance and safety issues. Utility Model Content

[0003] To solve the above problems, this utility model provides a hair dryer.

[0004] To solve the above-mentioned technical problems, this utility model provides a hair dryer in one embodiment. The hair dryer includes a body and a replaceable filter assembly. An air inlet is provided at one end of the body, and the air inlet has an inner air inlet. The filter assembly is detachably connected to the air inlet, and air enters the body through the filter assembly and the inner air inlet.

[0005] Preferably, the filter assembly includes a filter element unit and a protective component, wherein at least the filter element unit is replaceable, a filtration space is formed in the air inlet and at least one external air inlet is provided, the filter element unit is disposed in the filtration space, and air enters the body sequentially through the external air inlet, the filter element unit and the internal air inlet, and the protective component is detachably connected to the air inlet.

[0006] Preferably, the filter element unit includes a filter layer, which is folded to form multiple continuous pleats, through which air enters the body.

[0007] Preferably, the filter element unit further includes two support frames, which are respectively disposed at opposite ends of the filter layer. The support frames have slots on the side facing the filter layer, and the side of the pleated portion near the slot is connected to the slot.

[0008] Preferably, the filter layer is a non-woven fabric filter layer.

[0009] Preferably, the body includes a main body and a handle disposed on one side of the main body, an air outlet is provided at one end of the main body, and an external air inlet is provided at the other end of the main body opposite to the air outlet; and / or the external air inlet is provided at the end of the handle away from the main body, and the body is provided with a flow channel between the external air inlet and the air outlet.

[0010] Preferably, the air inlet includes an air inlet bracket, which is disposed within the filtration space. The filter element is sleeved on the air inlet bracket, and a plurality of first filter holes are provided around the air inlet bracket. The filter element is surrounded by the first filter holes.

[0011] Preferably, the air inlet includes a guide element, and air enters the body sequentially through the external air inlet, the filter element unit, the first filter hole, and the guide element.

[0012] Preferably, the air inlet bracket includes a first magnetic component, which is disposed at one end of the air inlet bracket facing the protective component, and the protective component includes a second magnetic component, wherein the first magnetic component and the second magnetic component are magnetically connected.

[0013] Preferably, the air inlet bracket is made of a different material than the filter element unit.

[0014] Preferably, the air inlet bracket is a metal air inlet bracket or a plastic air inlet bracket, and the filter element unit includes a filter layer, which is a non-woven fabric filter layer.

[0015] Preferably, the protective member is provided with a first extension portion, which extends outward along the circumferential direction of the protective member.

[0016] Preferably, the air inlet further includes an air inlet housing, the air inlet housing forms the filter space, a gap is provided between the protective member and the air inlet housing, and the external air inlet includes the gap.

[0017] Preferably, in the axial direction of the air inlet housing, the gap is greater than or equal to 2 mm and less than or equal to 10 mm.

[0018] Preferably, the air inlet further includes an air inlet housing, the filter space is formed inside the air inlet housing, the protective member abuts against the air inlet housing, and the external air inlet is opened on the air inlet housing.

[0019] Preferably, the protective component includes a filter bracket, the filter bracket including a filter section at least partially disposed within the filter space, the filter section having a plurality of second filter holes, and air entering the body sequentially through the external air inlet, the second filter holes and the filter element unit.

[0020] Preferably, in the axial direction of the filter support, the length of the filter support disposed within the filter space is greater than or equal to 12 mm and less than or equal to 30 mm.

[0021] Preferably, the air inlet further includes an air inlet housing, and the air inlet housing forms the filter space. The distance between the filter bracket and the air inlet housing within the filter space is greater than or equal to 2 mm and less than or equal to 10 mm.

[0022] Preferably, the filter bracket has a second extension at one end away from the external air inlet, the second extension abuts against the bottom wall of the filter space, and the second extension extends outward along the circumference of the filter bracket.

[0023] Compared with the prior art, the hair dryer of this utility model has the following advantages:

[0024] 1. In one embodiment of this utility model, the hair dryer includes a body and a replaceable filter assembly. An air inlet is provided at one end of the body, and the air inlet has an inner air inlet. The filter assembly is detachably connected to the air inlet, and air enters the body through the filter assembly and the inner air inlet. Because the filter assembly is replaceable and detachably connected to the air inlet, it is convenient to separate the filter assembly from the air inlet for direct replacement during dust cleaning. The replaceable filter assembly, corresponding to the detachable connection between the filter assembly and the air inlet, enables immediate removal, replacement, and cleaning, avoiding the incomplete cleaning shortcomings of traditional dust filtration structures. The entire cleaning process is convenient and fast, allowing the hair dryer's filtration effect to be quickly restored to its original state. Users do not need to waste time and effort on dust cleaning, thus improving the user's dust cleaning experience.

[0025] 2. In one embodiment of this utility model, the filter element unit is disposed in the filtration space within the air inlet. The protective component is detachably connected to the air inlet. When the blower is operating, air enters the machine body sequentially through the outer air inlet, the filter element unit, and the inner air inlet. The filter element unit filters dust, and the protective component secures the filter element unit. When dust needs to be cleaned, the detachable connection between the protective component and the air inlet allows the user to easily disassemble the filter assembly. At least the filter element unit is replaceable, solving the problems of incomplete dust removal and cumbersome operation in existing filtration structures, significantly improving the user's dust removal experience. Through the cooperation of the protective component and the filter element unit, the filter element unit is disposed in the filtration chamber of the filter bracket, forming an independent filtration module that is easy to disassemble and install, avoiding the drawbacks of traditional complex filtration structures, reducing manufacturing and maintenance costs, and ensuring the reliability of the filtration function. It is especially suitable for high-speed blower applications with large dust volumes requiring frequent dust removal.

[0026] 3. In one embodiment of this utility model, the folded filter layer forms multiple continuous pleats, which significantly increases the filtration area without increasing the filter element volume, thereby capturing more dust particles and extending the filter element replacement cycle. Furthermore, while increasing the filtration area, the pleats maintain smooth airflow, reduce wind resistance, and ensure that high airflow output is not significantly affected, balancing drying efficiency and filtration effect.

[0027] 4. In one embodiment of this utility model, the support frames at both ends of the filter layer fix the pleats through slots to prevent the filter layer from deforming or shifting under the impact of high-speed airflow, ensuring that the pleated structure maintains an effective filtration area for a long time, improving the durability of the filter element, and also helping to avoid damage to the filter layer when the user installs or disassembles the filter element assembly.

[0028] 5. In one embodiment of this utility model, the filter layer is a non-woven fabric filter layer. Since the non-woven fabric material has a porous structure, it can effectively intercept dust of different particle sizes. At the same time, it is lightweight, breathable, and has a low cost, making it convenient for users to replace regularly and improving ease of use.

[0029] 6. In one embodiment of this utility model, the external air inlet and outlet are positioned opposite each other on the main body, forming a straight flow channel. This reduces airflow deflection and loss, improves airflow efficiency, and facilitates strong airflow output. When the external air inlet is positioned at the end furthest from the main body, the weight distribution of the machine is more reasonable, making it easier for the user to grip and operate. Simultaneously, utilizing the internal space of the handle to arrange the flow channel reduces the overall size and improves portability. Air entering from the end of the handle flows over the motor surface, quickly carrying away the heat generated by the motor's operation and preventing a decrease in speed or a shortened lifespan due to overheating.

[0030] 7. In one embodiment of this utility model, the air inlet includes an air inlet bracket, which is disposed within the filtration space. The filter element unit is sleeved on the air inlet bracket, which provides support for the filter element unit to prevent deformation of the filter element unit in high-speed airflow and ensure long-term stable filtration. The filter element unit is sleeved on the air inlet bracket and surrounds the outside of the first filter hole, so that the airflow filtered by the filter element unit enters the machine body through the first filter hole. The first filter hole plays a filtering and guiding role, so that the airflow enters the blower more evenly and smoothly.

[0031] 8. In one embodiment of this utility model, the air inlet includes a guide element. Air enters the machine body sequentially through the external air inlet, the filter element unit, the first filter hole, and the guide element. The guide element guides external air to flow smoothly into the machine body, reducing wind noise caused by airflow turbulence, enabling the hair dryer to operate more quietly and improving the user experience.

[0032] 9. In one embodiment of this utility model, the first magnetic component and the second magnetic component are magnetically connected to achieve a detachable connection between the air inlet bracket and the protective component. This eliminates the need for complex clips or screws, allowing users to easily disassemble or install the protective component with one hand, significantly improving the convenience of dust removal operations. This is especially suitable for scenarios where high-speed blowers generate a large amount of dust and require frequent cleaning. The first magnetic component is positioned at the end of the air inlet bracket facing the protective component, enhancing the convenience of the magnetic connection. Furthermore, the magnetic connection has an automatic alignment effect, ensuring a tight fit between the protective component and the air inlet, preventing displacement of the filter element unit and thus reducing filtration sealing.

[0033] 10. In one embodiment of this utility model, the air inlet bracket and the filter element unit are made of different materials. The core of the air inlet bracket is structural stability and durability, requiring it to remain undeformed and unbroken under high-speed airflow impact, long-term vibration, or user disassembly operations. The core of the filter element unit is filtration efficiency and convenience, requiring it to intercept impurities, be easy to replace, and maintain low air resistance to ensure stable airflow. The different materials of the two achieve an optimal balance between product performance, cost, and user needs through the division of labor based on material properties.

[0034] 11. In one embodiment of this utility model, the air intake bracket is made of rigid materials such as metal or plastic as a structural component, so that the multiple first filter holes are not only suitable for air intake and filtration, but also provide support for the filter element unit sleeved on the air intake bracket. The filter element unit includes a filter layer, which is a non-woven fabric filter layer. The non-woven fabric can efficiently intercept dust, hair and other impurities, and has the advantages of being lightweight, easy to replace and having low maintenance costs.

[0035] 12. In one embodiment of this utility model, the protective component is provided with a first extension portion, which extends outward along the circumference of the protective component, providing a wider gripping area for the user and making it easier to apply force when disassembling the protective component, thus improving the convenience of the user in disassembling and replacing the filter element unit. The first extension portion can also adjust the angle at which the airflow enters the filter element unit, reducing eddies and allowing dust to be intercepted more evenly by the filter element unit.

[0036] 13. In one embodiment of this utility model, the air inlet housing serves to block dust and foreign objects, reducing the probability of external foreign objects such as hair and fibers becoming entangled and adsorbed on the filter element unit, reducing the trouble of manual cleaning, and at the same time protecting the filter element unit from external damage. A gap is provided between the protective component and the air inlet housing, and the external air inlet includes the gap, thereby forming an external air inlet between the air inlet housing and the protective component to allow airflow to enter.

[0037] 14. In one embodiment of this utility model, the gap in the axial direction of the air inlet housing is greater than or equal to 2mm and less than or equal to 10mm. The above-mentioned size setting makes the gap size between the protective component and the air inlet housing reasonable, which can ensure sufficient air intake, avoid the increase of wind resistance due to the gap being too small, and also avoid the direct intake of dust due to the gap being too large, thus balancing filtration efficiency and air volume loss.

[0038] 15. In one embodiment of this utility model, the air inlet further includes an air inlet housing, a filtration space is formed inside the air inlet housing, a protective member abuts against the air inlet housing, and an external air inlet is opened on the air inlet housing. Since the protective member abuts against the air inlet housing to form a sealed structure, and the external air inlet is opened on the air inlet housing, an air inlet channel is formed for airflow to enter, enabling direct side air intake.

[0039] 16. In one embodiment of the present invention, the protective component includes a filter bracket, which includes a filter section at least partially disposed within the filter space. The filter section has a plurality of second filter holes, so that the airflow needs to pass through the second filter holes before passing through the filter element unit. The second filter holes can filter out larger debris and dust in advance, thereby relieving the filtration pressure of the filter element unit and increasing the service life of the filter element unit.

[0040] 17. In one embodiment of the present invention, in the axial direction of the filter bracket, the length of the filter bracket disposed in the filter space is greater than or equal to 12mm and less than or equal to 30mm. The above dimensions can ensure that the filter bracket has sufficient effective filtration length in the filter space, making full use of the space, while preventing the insertion from being too deep, which would lead to disassembly difficulties, or the insertion from being too shallow, which would lead to poor sealing.

[0041] 18. In one embodiment of this utility model, the distance between the filter bracket and the air inlet housing is greater than or equal to 2mm and less than or equal to 10mm. These dimensions ensure that the distance between the air inlet housing and the filter bracket remains compact and reasonable, preventing airflow from being stagnant due to excessive width and avoiding installation jamming due to excessive narrowness, thus improving structural fit accuracy.

[0042] 19. In one embodiment of this utility model, a second extension is provided at the end of the filter bracket away from the external air inlet. The second extension abuts against the bottom wall of the filter space to form a sealing structure, preventing unfiltered air from directly entering the machine body through the gap between the filter bracket and the air inlet, ensuring that all air entering the machine body is filtered by the filter element, thus improving the filtration sealing performance. Furthermore, the second extension extends outward along the circumference of the filter bracket, which can guide the filter bracket to be accurately aligned during installation, avoiding tilting or misalignment. The circumferential extension of the second extension increases the contact area of ​​the abutment, enhancing the stability of the filter bracket in the air inlet and preventing vibration and abnormal noise under high-speed airflow. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a three-dimensional structural diagram of the hair dryer provided in the first embodiment of this utility model.

[0045] Figure 2 This is an exploded structural diagram of the hair dryer provided in the first embodiment of this utility model.

[0046] Figure 3 This is an exploded structural diagram of the filter element unit of the hair dryer provided in the first embodiment of this utility model.

[0047] Figure 4 This is a cross-sectional view of a portion of the structure of the hair dryer provided in the first embodiment of this utility model.

[0048] Figure 5 This is a partial three-dimensional structural schematic diagram of the hair dryer provided in the second embodiment of this utility model.

[0049] Figure 6 This is a partial three-dimensional structural schematic diagram of the hair dryer provided in the third embodiment of this utility model.

[0050] Figure 7 This is a partial three-dimensional structural schematic diagram of the hair dryer provided in the fourth embodiment of this utility model.

[0051] Figure 8 This is a partial three-dimensional structural schematic diagram of the hair dryer provided in the fifth embodiment of this utility model.

[0052] Explanation of reference numerals in the attached diagram:

[0053] 1. Hair dryer; 10. Body; 11. Air inlet; 12. Filter space; 13. External air inlet; 14. Main body; 15. Handle; 16. Flow channel; 20. Filter assembly; 21. Filter element unit; 22. Protective component; 111. Air inlet bracket; 112. Air inlet shell; 113. Gap; 114. Internal air inlet; 141. Air outlet; 211. Filter layer; 212. Support frame; 221. Second magnetic chuck; 222. First extension; 223. Filter bracket; 1111. First filter hole; 1112. Air guide; 1113. First magnetic chuck; 2111. Pleated part; 2121. Slot; 2231. Filter part; 2232. Second extension; 22311. Second filter hole; 1a. Hair dryer; 1b. Hair dryer; 1c. Hair dryer; 1d. Hair dryer. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0055] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0056] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0057] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0058] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0059] Please combine Figure 1 and Figure 2 The first embodiment of this utility model provides a hair dryer 1, which includes a body 10 and a replaceable filter assembly 20. One end of the body 10 is provided with an air inlet 11, and the air inlet 11 has an inner air inlet 114. The filter assembly 20 is detachably connected to the air inlet 11, and the air enters the body 10 through the filter assembly 20 and the inner air inlet 114.

[0060] Understandably, since the filter assembly 20 is replaceable and detachably connected to the air inlet 11, it is easy to separate the filter assembly 20 from the air inlet 11 during dust removal to directly replace it with a new one. The replaceable filter assembly 20, corresponding to its detachable connection to the air inlet 11, allows for immediate removal, replacement, and cleaning, avoiding the incomplete cleaning shortcomings of traditional dust filtration structures. The entire cleaning process is convenient and fast, quickly restoring the filtration effect of the blower 1 to its original state. Users do not need to waste time and effort on dust removal, improving the user's cleaning experience. By adding a detachable and replaceable filter assembly 20 between the inner air inlet 114 and the outer air inlet area, dust is blocked from entering, greatly extending the service life of the blower 1. This prevents dust from entering the blower 1 and causing motor damage or oxidation of internal circuit board components, reducing performance degradation and safety risks caused by dust accumulation.

[0061] It should be noted that the replaceable filter assembly 20 corresponds to the detachable connection between the filter assembly 20 and the air inlet 11, facilitating direct replacement of the filter assembly 20 by the user for dust cleaning. This is fundamentally different from the repair and replacement of existing metal mesh filter devices after damage. Metal mesh filters emphasize permanent use, resisting dust clogging, hair entanglement, and physical impact through high-strength materials. They are typically only replaced passively after damage, and excessive dust accumulation simply leads to disassembly, cleaning, and reinstallation. In contrast, the filter assembly 20 of this application prioritizes convenient maintenance, enabling proactive replacement for preventative maintenance. It adopts a modular consumable design, replacing the filter even when not damaged to maintain optimal filtration efficiency. This allows users to maintain optimal equipment performance at minimal cost, essentially trading convenience and economy for a continuously efficient experience.

[0062] Please continue to combine Figure 1 and Figure 2 Furthermore, the filter assembly 20 includes a filter element unit 21 and a protective element 22. At least the filter element unit 21 is replaceable. A filtration space 12 is formed in the air inlet 11 and at least one external air inlet 13 is provided. The filter element unit 21 is disposed in the filtration space 12. Air enters the body 10 in sequence through the external air inlet 13, the filter element unit 21 and the internal air inlet 114. The protective element 22 is detachably connected to the air inlet 11.

[0063] Understandably, the filter element 21 is located in the filtration space 12 within the air inlet 11. The protective component 22 is detachably connected to the air inlet 11. When the blower 1 is working, air enters the body 10 sequentially through the external air inlet 13 and the filter element 21. The filter element 21 filters dust, and the protective component 22 secures the filter element 21. When dust needs to be cleaned, the detachable connection between the protective component 22 and the air inlet 11 allows the user to easily disassemble the filter assembly 20. At least the filter element 21 is replaceable, solving the problems of incomplete dust removal and cumbersome operation in existing filtration structures, significantly improving the user's dust removal experience. Through the cooperation of the protective component 22 and the filter element 21, the filter element 21 is positioned in the filtration chamber of the filter bracket 223, forming an independent filtration module that is easy to disassemble and install. This avoids the drawbacks of traditional complex filtration structures, reduces manufacturing and maintenance costs, and ensures the reliability and convenience of the filtration function. It is especially suitable for applications where the high-speed blower 1 has a large amount of dust and requires frequent dust removal. It helps to clean dust in a timely and thorough manner, preventing dust accumulation from blocking the airflow of the hair dryer 1, preventing dust from entering the motor shaft and causing the motor to malfunction, and isolating dust from the hair dryer 1 so that the circuit board inside the hair dryer 1 will not be covered with dust, thus preventing the circuit board from short circuits or poor heat dissipation caused by dust accumulation.

[0064] Optionally, the filter element unit 21 and the protective component 22 are detachably connected, and the filter element unit 21 is replaceable; or the filter element unit 21 and the protective component 22 are integrally formed, and the filter element unit 21 and the protective component 22 are replaceable.

[0065] It should be noted that existing hair dryers 1, especially high-speed hair dryers 1, have the characteristic of high air volume, but this is accompanied by a significant increase in dust volume. The dust filtration structure of traditional hair dryers 1 is either unable to withstand the increased dust volume, requiring frequent dust cleaning, and the dust filtration structure is fixed inside the hair dryer 1, making the structure complex and inconvenient to disassemble; or it only uses a metal filter with a large filter size, which can only selectively filter impurities with a larger particle size, and cannot achieve comprehensive dust filtration. This causes dust to negatively affect the air output efficiency and service life of the hair dryer 1, and it is also easy for foreign objects to become entangled on the metal filter, affecting the filtration efficiency. In contrast, this application sets a filter element unit 21 in the filtration space 12 of the air inlet 11. The filter element unit 21 has the characteristics of high air permeability and low wind resistance, which can achieve efficient filtration and accurately intercept dust particles. In addition to the filter element 21, the filter assembly 20 also includes a protective component 22 that is detachably connected to the air inlet 11. The detachable connection between the protective component 22 and the air inlet 11 facilitates the replacement of the filter element 21. Since the protective component 22 is detachably connected to the air inlet 11, when the protective component 22 is connected to the air inlet 11, it can fix and limit the filter element 21 located in the filtration space 12 of the air inlet 11, ensuring that the filter element 21 does not shift position and affect the filtration effect. When the protective component 22 is separated from the air inlet 11, the user can easily remove the filter element 21 to observe whether the filter element 21 needs to be replaced, and replace the filter element 21 according to the specific situation. The detachable connection between the protective component 22 and the air inlet 11 makes the entire dust removal process convenient and quick. Users only need to separate the protective component 22 from the air inlet 11 and then replace the filter element to achieve dust removal. There is no need to consider whether the dust removal is thorough. It realizes the ability to disassemble, replace, and clean immediately. The entire dust removal process is convenient and fast, which allows the filtration effect of the blower 1 to be quickly restored to its original state. Users do not have to waste time and energy on dust removal in dead corners, thus improving the user's dust removal experience.

[0066] Optionally, the protective component 22 and the air inlet 11 can be detachably connected by magnetic connection, threaded connection, or snap-fit ​​connection.

[0067] Please combine Figure 2 and Figure 3 Furthermore, the filter element unit 21 includes a filter layer 211, which is folded to form multiple continuous pleats 2111, through which air enters the body 10.

[0068] Understandably, the folded filter layer 211 forms multiple continuous pleats 2111, significantly increasing the filtration area without increasing the filter volume, thus capturing more dust particles and extending the filter unit 21 replacement cycle. Furthermore, while increasing the filtration area, the pleats 2111 maintain smooth airflow, reduce wind resistance, and ensure that high airflow output is not significantly affected, balancing drying efficiency and filtration effect.

[0069] Please continue to combine Figure 2 and Figure 3 Furthermore, the filter element unit 21 also includes two support frames 212, which are respectively disposed at opposite ends of the filter layer 211. The support frame 212 has a slot 2121 on the side facing the filter layer 211, and the pleated part 2111 is connected to the slot 2121 on the side near the slot 2121.

[0070] Understandably, the support frames 212 at both ends of the filter layer 211 fix the pleated part 2111 through the slots 2121 to prevent the filter layer 211 from deforming or shifting under the impact of high-speed airflow, ensuring that the pleated part 2111 maintains an effective filtration area for a long time, improving the durability of the filter element, and also helping to avoid damage to the filter layer 211 when the user installs or removes the filter element assembly.

[0071] Furthermore, the filter layer 211 is a non-woven fabric filter layer 211.

[0072] Understandably, because non-woven fabric is composed of randomly interwoven fibers, it can form an irregular porous network that effectively captures dust particles of different sizes, such as PM2.5, hair debris, and fibers, with a filtration efficiency higher than ordinary gauze or simple filters. At the same time, it is lightweight, breathable, and inexpensive, making it easy for users to replace regularly and improving usability. By adjusting the density and thickness of the non-woven fabric, coarse particles such as hair, large dust particles, and fine dust can be specifically filtered from the air drawn into the hair dryer, preventing dust from being expelled with the airflow or entering the motor.

[0073] Optionally, the thickness of the nonwoven filter layer 211 is between 0.2-0.3 mm, and the basis weight is between 80-120 GSM.

[0074] Please combine Figure 1 and Figure 2 Furthermore, the body 10 includes a main body 14 and a handle 15 disposed on one side of the main body 14. An air outlet 141 is provided at one end of the main body 14, and an external air inlet 13 is provided at the other end of the main body 14 opposite to the air outlet 141. A flow passage 16 is provided between the external air inlet 13 and the air outlet 141 in the body 10.

[0075] Understandably, when the external air inlet 13 and the air outlet 141 are positioned opposite each other on the main body 14, a straight flow channel 16 can be formed, reducing airflow bend loss, improving airflow efficiency, and facilitating the output of strong air volume.

[0076] Please combine Figure 2 and Figure 4Furthermore, the air inlet 11 includes an air inlet bracket 111, which is disposed within the filter space 12. The filter element unit 21 is sleeved on the air inlet bracket 111. The air inlet bracket 111 has a plurality of first filter holes 1111 on its periphery, and the filter element unit 21 surrounds the outside of the first filter holes 1111.

[0077] Understandably, the filter element unit 21 is fitted onto the air inlet bracket 111, which provides support for the filter element unit 21 to prevent deformation of the filter element unit 21 in high-speed airflow and ensure long-term stable filtration. The filter element unit 21 is fitted onto the air inlet bracket 111 and surrounds the outside of the first filter hole 1111, so that the airflow filtered by the filter element unit 21 enters the body 10 through the first filter hole 1111. The first filter hole 1111 plays a filtering and guiding role, so that the airflow enters the blower 1 more evenly and smoothly.

[0078] Please see Figure 4 Furthermore, the air inlet 11 includes a guide element 1112, through which air sequentially passes through the external air inlet 13, the filter element unit 21, the first filter hole 1111, and the guide element 1112 before entering the body 10.

[0079] Understandably, when the air passes through the first filter hole 1111 and flows through the guide 1112, the guide 1112 plays a guiding role, guiding the external air to flow smoothly into the body 10, reducing the wind noise caused by airflow turbulence, so that the hair dryer 1 can operate more quietly and improve the user experience.

[0080] Please combine Figure 2 and Figure 4 Furthermore, the air intake bracket 111 includes a first magnetic member 1113, which is disposed at one end of the air intake bracket 111 facing the protective member 22. The protective member 22 includes a second magnetic member 221, and the first magnetic member 1113 and the second magnetic member 221 are magnetically connected.

[0081] Understandably, the first magnetic component 1113 and the second magnetic component 221 are magnetically connected to achieve a detachable connection between the air inlet bracket 111 and the protective component 22. This eliminates the need for complex clips or screws, allowing users to easily disassemble or install the protective component 22 with one hand, significantly improving the convenience of dust removal operations. This is especially suitable for scenarios where the high-speed blower 1 has a large amount of dust and requires frequent cleaning. The first magnetic component 1113 is positioned at the end of the air inlet bracket 111 facing the protective component 22, enhancing the convenience of the magnetic connection. Furthermore, the magnetic connection has an automatic alignment effect, ensuring a tight fit between the protective component 22 and the air inlet 11, preventing displacement of the filter element 21 and thus reducing filtration sealing.

[0082] Optionally, the first magnetic attractor 1113 is disposed on the side of the air inlet bracket 111 facing the protective member 22; or disposed on the inner side of the air inlet bracket 111; or the entire air inlet bracket 111 serves as the first magnetic attractor 1113. The second magnetic attractor 221 is disposed on the side of the protective member 22 facing the air inlet bracket 111; or disposed on the inner side of the protective member 22; or the entire protective member 22 serves as the second magnetic attractor 221.

[0083] Specifically, the first magnetic component 1113 and the second magnetic component 221 have the following material settings: First case: the first magnetic component 1113 is made of magnetic material and the second magnetic component 221 is made of iron material; Second case: the first magnetic component 1113 is made of iron material and the second magnetic component 221 is made of magnetic material; Third case: both the first magnetic component 1113 and the second magnetic component 221 are made of magnetic material.

[0084] Please see Figure 2 Furthermore, the air intake bracket 111 and the filter unit 21 are made of different materials.

[0085] Understandably, the air intake bracket 111 and the filter unit 21 are made of different materials. The core of the air intake bracket 111 is structural stability and durability, requiring it to remain undeformed and unbroken under high-speed airflow impact, long-term vibration, or user disassembly. The core of the filter unit 21 is filtration efficiency and convenience, needing to intercept impurities, facilitate replacement, and maintain low air resistance to ensure stable airflow. The difference in materials allows for a division of labor based on material properties, achieving an optimal balance between product performance, cost, and user needs.

[0086] Please combine Figure 2 and Figure 3 Furthermore, the air inlet bracket 111 is a metal air inlet bracket or a plastic air inlet bracket, and the filter element unit 21 includes a filter layer 211, which is a non-woven fabric filter layer.

[0087] Understandably, the air intake bracket 111, as a structural component, is made of rigid materials such as metal or plastic, so that the multiple first filter holes 1111 are not only suitable for air intake and filtration, but also provide support for the filter element unit 21 mounted on the air intake bracket 111. The filter element unit 21 includes a filter layer 211, which is a non-woven fabric filter layer. Non-woven fabric can efficiently intercept impurities such as dust and hair, and has the advantages of being lightweight, easy to replace, and having low maintenance costs.

[0088] Please see Figure 2 Furthermore, the protective component 22 is provided with a first extension portion 222, which extends outward along the circumference of the protective component 22.

[0089] Understandably, the protective component 22 is provided with a first extension portion 222, which extends outward along the circumference of the protective component 22, providing a wider gripping area for the user and making it easier to apply force when disassembling the protective component 22, thus improving the convenience of the user in disassembling and replacing the filter element unit 21. The first extension portion 222 can also adjust the angle at which the airflow enters the filter element unit 21, reducing turbulence and allowing dust to be intercepted more evenly by the filter element unit 21.

[0090] Please combine Figure 2 and Figure 4 Furthermore, the air inlet 11 also includes an air inlet housing 112, a filter space 12 is formed inside the air inlet housing 112, a gap 113 is provided between the protective member 22 and the air inlet housing 112, and the external air inlet 13 includes the gap 113.

[0091] Understandably, the air inlet housing 112 serves to block dust and foreign objects, reducing the probability of external foreign objects such as hair and fibers becoming entangled and adsorbed on the filter element unit 21, reducing the trouble of manual cleaning, and at the same time protecting the filter element unit 21 from external damage. A gap 113 is provided between the protective component 22 and the air inlet housing 112, and the external air inlet 13 includes the gap 113, thereby forming an external air inlet 13 between the air inlet housing 112 and the protective component 22 to allow airflow to enter.

[0092] Optionally, when the air inlet 11 also includes an air inlet housing 112, and a gap 113 is provided between the protective member 22 and the air inlet housing 112, the external air inlet 13 may only be provided between the protective member 22 and the air inlet housing 112. Figure 1 This demonstrates the structural setup.

[0093] Please see Figure 4 Furthermore, in the axial direction of the air inlet housing 112, the gap 113 is greater than or equal to 2 mm and less than or equal to 10 mm.

[0094] Understandably, the gap 113 is defined as L, where 2mm ≤ L ≤ 10mm. The above size setting ensures that the gap 113 between the protective component 22 and the air inlet housing 112 is reasonably sized, which can ensure sufficient air intake and avoid increasing wind resistance due to an excessively small gap 113, while also preventing dust from being directly sucked in due to an excessively large gap 113, thus balancing filtration efficiency and airflow loss.

[0095] Please combine Figure 2 and Figure 4Furthermore, the protective component 22 includes a filter bracket 223, which includes a filter section 2231 that is at least partially disposed within the filter space 12. The filter section 2231 has a plurality of second filter holes 22311, and air enters the body 10 sequentially through the external air inlet 13, the second filter holes 22311 and the filter element unit 21.

[0096] Understandably, the airflow needs to pass through the second filter hole 22311 before passing through the filter element unit 21. The second filter hole 22311 can filter out larger debris and dust in advance, relieve the filtration pressure of the filter element unit 21, and increase the service life of the filter element unit 21.

[0097] Please see Figure 4 Furthermore, in the axial direction of the filter support 223, the length of the filter support 223 disposed within the filter space 12 is greater than or equal to 12 mm and less than or equal to 30 mm.

[0098] Understandably, the length of the filter support 223 within the filter space 12 is defined as D, where 12mm ≤ D ≤ 30mm. These dimensions ensure that the filter support 223 has sufficient effective filtration length within the filter space 12, making full use of the space, while preventing excessively deep insertion that would lead to difficulty in disassembly, or excessively shallow insertion that would result in poor sealing.

[0099] Please combine Figure 2 and Figure 4 Furthermore, the air inlet 11 also includes an air inlet housing 112, and a filter space 12 is formed inside the air inlet housing 112. The distance between the filter bracket 223 and the air inlet housing 112 in the filter space 12 is greater than or equal to 2 mm and less than or equal to 10 mm.

[0100] Understandably, the distance H between the filter support 223 and the air inlet housing 112 within the filter space 12 is defined as 2mm ≤ H ≤ 10mm. These dimensions ensure that the distance between the air inlet housing 112 and the filter support 223 remains compact and reasonable, preventing airflow from being stagnant due to excessive width or causing installation jamming due to excessive narrowness, thus improving structural fit accuracy.

[0101] Please see Figure 2 Furthermore, a second extension 2232 is provided at the end of the filter bracket 223 away from the external air inlet 13. The second extension 2232 abuts against the bottom wall of the filter space 12 and extends outward along the circumference of the filter bracket 223.

[0102] Understandably, the second extension 2232 abuts against the bottom wall of the filter space 12 to form a sealed structure, preventing unfiltered air from directly entering the body 10 through the gap between the filter bracket 223 and the air inlet 11, ensuring that all air entering the body 10 is filtered by the filter element, thus improving the filtration sealing performance. Furthermore, the second extension 2232 extends outward along the circumference of the filter bracket 223, guiding the filter bracket 223 to accurate alignment during installation, avoiding tilting or misalignment. The circumferential extension of the second extension 2232 increases the contact area, enhancing the stability of the filter bracket 223 within the air inlet 11 and preventing vibration and abnormal noise under high-speed airflow.

[0103] Please see Figure 5 The second embodiment of this utility model provides a hair dryer 1a. The hair dryer 1a differs from the hair dryer 1 in the first embodiment of this utility model in that the external air inlet 13 is located at the end of the handle 15 away from the main body 14, and the body 10 has a flow channel 16 between the external air inlet 13 and the air outlet 141.

[0104] Understandably, the external air inlet 13 is located at the end of the handle 15 away from the main body 14, which makes the center of gravity of the body 10 more reasonable and easier for the user to hold and operate. At the same time, the internal space of the handle 15 is used to set up the flow channel 16, reducing the overall size and improving portability. After the air enters from the end of the handle 15, it can flow over the surface of the motor and quickly remove the heat generated by the motor operation, avoiding the decrease in speed or shortened life due to overheating.

[0105] Please see Figure 6 The third embodiment of this utility model provides a hair dryer 1b. The hair dryer 1b differs from the hair dryer 1 of the first embodiment of this utility model in that the external air inlet 13 is opened on the other end of the main body 14 opposite to the air outlet 141 and on the end of the handle 15 away from the main body 14. The body 10 is provided with a flow channel 16 between the external air inlet 13 and the air outlet 141.

[0106] Understandably, external air inlets 13 are provided on both the end of the main body 14 opposite to the air outlet 141 and the end of the handle 15 away from the main body 14, which can improve the air intake capacity of the hair dryer 1b. When the external air inlets 13 and the air outlet 141 are positioned opposite each other on the main body 14, a straight flow channel 16 can be formed, reducing airflow bend loss, improving airflow efficiency, and facilitating strong airflow output. The external air inlet 13 is located at the end of the handle 15 away from the main body 14, which makes the center of gravity of the body 10 more reasonable, making it easier for users to hold and operate. At the same time, the flow channel 16 is set in the internal space of the handle 15, reducing the overall size and improving portability. After the air enters from the end of the handle 15, it can flow over the surface of the motor, quickly carrying away the heat generated by the motor operation, avoiding a decrease in speed or a shortened lifespan due to overheating.

[0107] Please see Figure 7 The fourth embodiment of this utility model provides a hair dryer 1c, which differs from the hair dryer 1 of the first embodiment in that the external air inlet 13 is formed on the air inlet housing 112 and disposed between the protective member 22 and the air inlet housing 112.

[0108] Understandably, the external air inlet 13 being located on the air inlet housing 112 and positioned between the protective member 22 and the air inlet housing 112 can enhance the air intake capacity of the blower 1c.

[0109] Please see Figure 8 The fifth embodiment of this utility model provides a hair dryer 1d. The hair dryer 1d is different from the hair dryer 1 of the first embodiment of this utility model in that the air inlet 11 also includes an air inlet shell 112, a filter space 12 is formed inside the air inlet shell 112, the protective member 22 abuts against the air inlet shell 112, and the external air inlet 13 is opened on the air inlet shell 112.

[0110] Understandably, since the protective component 22 abuts against the air inlet housing 112 to form a sealed structure, and the external air inlet 13 is opened on the air inlet housing 112 to form an air inlet channel for airflow to enter, it can achieve direct side air intake.

[0111] Compared with the prior art, the hair dryer of this utility model has the following advantages:

[0112] 1. In one embodiment of this utility model, the hair dryer includes a body and a replaceable filter assembly. An air inlet is provided at one end of the body, and the air inlet has an inner air inlet. The filter assembly is detachably connected to the air inlet, and air enters the body through the filter assembly and the inner air inlet. Because the filter assembly is replaceable and detachably connected to the air inlet, it is convenient to separate the filter assembly from the air inlet for direct replacement during dust cleaning. The replaceable filter assembly, corresponding to the detachable connection between the filter assembly and the air inlet, enables immediate removal, replacement, and cleaning, avoiding the incomplete cleaning shortcomings of traditional dust filtration structures. The entire cleaning process is convenient and fast, allowing the hair dryer's filtration effect to be quickly restored to its original state. Users do not need to waste time and effort on dust cleaning, thus improving the user's dust cleaning experience.

[0113] 2. In one embodiment of this utility model, the filter element unit is disposed in the filtration space within the air inlet. The protective component is detachably connected to the air inlet. When the blower is operating, air enters the machine body sequentially through the outer air inlet, the filter element unit, and the inner air inlet. The filter element unit filters dust, and the protective component secures the filter element unit. When dust needs to be cleaned, the detachable connection between the protective component and the air inlet allows the user to easily disassemble the filter assembly. At least the filter element unit is replaceable, solving the problems of incomplete dust removal and cumbersome operation in existing filtration structures, thus improving the user's dust removal experience. Through the cooperation of the protective component and the filter element unit, the filter element unit is disposed in the filtration chamber of the filter bracket, forming an independent filtration module that is easy to disassemble and install. This avoids the drawbacks of traditional complex filtration structures, reduces manufacturing and maintenance costs, and ensures the reliability of the filtration function. It is especially suitable for high-speed blower applications with large dust volumes requiring frequent dust removal.

[0114] 3. In one embodiment of this utility model, the folded filter layer forms multiple continuous pleats, which significantly increases the filtration area without increasing the filter element volume, thereby capturing more dust particles and extending the filter element replacement cycle. Furthermore, while increasing the filtration area, the pleats maintain smooth airflow, reduce wind resistance, and ensure that high airflow output is not significantly affected, balancing drying efficiency and filtration effect.

[0115] 4. In one embodiment of this utility model, the support frames at both ends of the filter layer fix the pleats through slots to prevent the filter layer from deforming or shifting under the impact of high-speed airflow, ensuring that the pleated structure maintains an effective filtration area for a long time, improving the durability of the filter element, and also helping to avoid damage to the filter layer when the user installs or disassembles the filter element assembly.

[0116] 5. In one embodiment of this utility model, the filter layer is a non-woven fabric filter layer. Since the non-woven fabric material has a porous structure, it can effectively intercept dust of different particle sizes. At the same time, it is lightweight, breathable, and has a low cost, making it convenient for users to replace regularly and improving ease of use.

[0117] 6. In one embodiment of this utility model, the external air inlet and outlet are positioned opposite each other on the main body, forming a straight flow channel. This reduces airflow deflection and loss, improves airflow efficiency, and facilitates strong airflow output. When the external air inlet is positioned at the end furthest from the main body, the weight distribution of the machine is more reasonable, making it easier for the user to grip and operate. Simultaneously, utilizing the internal space of the handle to arrange the flow channel reduces the overall size and improves portability. Air entering from the end of the handle flows over the motor surface, quickly carrying away the heat generated by the motor's operation and preventing a decrease in speed or a shortened lifespan due to overheating.

[0118] 7. In one embodiment of this utility model, the air inlet includes an air inlet bracket, which is disposed within the filtration space. The filter element unit is sleeved on the air inlet bracket, which provides support for the filter element unit to prevent deformation of the filter element unit in high-speed airflow and ensure long-term stable filtration. The filter element unit is sleeved on the air inlet bracket and surrounds the outside of the first filter hole, so that the airflow filtered by the filter element unit enters the machine body through the first filter hole. The first filter hole plays a filtering and guiding role, so that the airflow enters the blower more evenly and smoothly.

[0119] 8. In one embodiment of this utility model, the air inlet includes a guide element. Air enters the machine body sequentially through the external air inlet, the filter element unit, the first filter hole, and the guide element. The guide element guides external air to flow smoothly into the machine body, reducing wind noise caused by airflow turbulence, enabling the hair dryer to operate more quietly and improving the user experience.

[0120] 9. In one embodiment of this utility model, the first magnetic component and the second magnetic component are magnetically connected to achieve a detachable connection between the air inlet bracket and the protective component. This eliminates the need for complex clips or screws, allowing users to easily disassemble or install the protective component with one hand, significantly improving the convenience of dust removal operations. This is especially suitable for scenarios where high-speed blowers generate a large amount of dust and require frequent cleaning. The first magnetic component is positioned at the end of the air inlet bracket facing the protective component, enhancing the convenience of the magnetic connection. Furthermore, the magnetic connection has an automatic alignment effect, ensuring a tight fit between the protective component and the air inlet, preventing displacement of the filter element unit and thus reducing filtration sealing.

[0121] 10. In one embodiment of this utility model, the air inlet bracket and the filter element unit are made of different materials. The core of the air inlet bracket is structural stability and durability, requiring it to remain undeformed and unbroken under high-speed airflow impact, long-term vibration, or user disassembly operations. The core of the filter element unit is filtration efficiency and convenience, requiring it to intercept impurities, be easy to replace, and maintain low air resistance to ensure stable airflow. The different materials of the two achieve an optimal balance between product performance, cost, and user needs through the division of labor based on material properties.

[0122] 11. In one embodiment of this utility model, the air intake bracket is made of rigid materials such as metal or plastic as a structural component, so that the multiple first filter holes are not only suitable for air intake and filtration, but also provide support for the filter element unit sleeved on the air intake bracket. The filter element unit includes a filter layer, which is a non-woven fabric filter layer. The non-woven fabric can efficiently intercept dust, hair and other impurities, and has the advantages of being lightweight, easy to replace and having low maintenance costs.

[0123] 12. In one embodiment of this utility model, the protective component is provided with a first extension portion, which extends outward along the circumference of the protective component, providing a wider gripping area for the user and making it easier to apply force when disassembling the protective component, thus improving the convenience of the user in disassembling and replacing the filter element unit. The first extension portion can also adjust the angle at which the airflow enters the filter element unit, reducing eddies and allowing dust to be intercepted more evenly by the filter element unit.

[0124] 13. In one embodiment of this utility model, the air inlet housing serves to block dust and foreign objects, reducing the probability of external foreign objects such as hair and fibers becoming entangled and adsorbed on the filter element unit, reducing the trouble of manual cleaning, and at the same time protecting the filter element unit from external damage. A gap is provided between the protective component and the air inlet housing, and the external air inlet includes the gap, thereby forming an external air inlet between the air inlet housing and the protective component to allow airflow to enter.

[0125] 14. In one embodiment of this utility model, the gap in the axial direction of the air inlet housing is greater than or equal to 2mm and less than or equal to 10mm. The above-mentioned size setting makes the gap size between the protective component and the air inlet housing reasonable, which can ensure sufficient air intake, avoid the increase of wind resistance due to the gap being too small, and also avoid the direct intake of dust due to the gap being too large, thus balancing filtration efficiency and air volume loss.

[0126] 15. In one embodiment of this utility model, the air inlet further includes an air inlet housing, a filtration space is formed inside the air inlet housing, a protective member abuts against the air inlet housing, and an external air inlet is opened on the air inlet housing. Since the protective member abuts against the air inlet housing to form a sealed structure, and the external air inlet is opened on the air inlet housing, an air inlet channel is formed for airflow to enter, enabling direct side air intake.

[0127] 16. In one embodiment of the present invention, the protective component includes a filter bracket, which includes a filter section at least partially disposed within the filter space. The filter section has a plurality of second filter holes, so that the airflow needs to pass through the second filter holes before passing through the filter element unit. The second filter holes can filter out larger debris and dust in advance, thereby relieving the filtration pressure of the filter element unit and increasing the service life of the filter element unit.

[0128] 17. In one embodiment of the present invention, in the axial direction of the filter bracket, the length of the filter bracket disposed in the filter space is greater than or equal to 12mm and less than or equal to 30mm. The above dimensions can ensure that the filter bracket has sufficient effective filtration length in the filter space, making full use of the space, while preventing the insertion from being too deep, which would lead to disassembly difficulties, or the insertion from being too shallow, which would lead to poor sealing.

[0129] 18. In one embodiment of this utility model, the distance between the filter bracket and the air inlet housing is greater than or equal to 2mm and less than or equal to 10mm. These dimensions ensure that the distance between the air inlet housing and the filter bracket remains compact and reasonable, preventing airflow from being stagnant due to excessive width and avoiding installation jamming due to excessive narrowness, thus improving structural fit accuracy.

[0130] 19. In one embodiment of this utility model, a second extension is provided at the end of the filter bracket away from the external air inlet. The second extension abuts against the bottom wall of the filter space to form a sealing structure, preventing unfiltered air from directly entering the machine body through the gap between the filter bracket and the air inlet, ensuring that all air entering the machine body is filtered by the filter element, thus improving the filtration sealing performance. Furthermore, the second extension extends outward along the circumference of the filter bracket, which can guide the filter bracket to be accurately aligned during installation, avoiding tilting or misalignment. The circumferential extension of the second extension increases the contact area of ​​the abutment, enhancing the stability of the filter bracket in the air inlet and preventing vibration and abnormal noise under high-speed airflow.

[0131] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hair dryer, characterized in that: The hair dryer includes a body and a replaceable filter assembly. An air inlet is provided at one end of the body, and the air inlet has an inner air inlet. The filter assembly is detachably connected to the air inlet, and air enters the body through the filter assembly and the inner air inlet.

2. The hair dryer as described in claim 1, characterized in that: The filtration assembly includes a filter element and a protective component. At least the filter element is replaceable. The air inlet has a filtration space and at least one external air inlet. The filter element is disposed in the filtration space. Air enters the body sequentially through the external air inlet, the filter element, and the internal air inlet. The protective component is detachably connected to the air inlet.

3. The hair dryer as described in claim 2, characterized in that: The filter element unit includes a filter layer, which is folded to form multiple continuous pleats, through which air enters the body.

4. The hair dryer as described in claim 3, characterized in that: The filter element unit also includes two support frames, which are respectively disposed at opposite ends of the filter layer. Each support frame has a slot on the side facing the filter layer, and the side of the pleated portion near the slot is connected to the slot.

5. The hair dryer as described in claim 3, characterized in that: The filter layer is a non-woven fabric filter layer.

6. The hair dryer as described in claim 2, characterized in that: The machine body includes a main body and a handle disposed on one side of the main body. An air outlet is provided at one end of the main body, and an external air inlet is provided at the other end of the main body opposite to the air outlet; and / or the external air inlet is provided at the end of the handle away from the main body, and the machine body is provided with a flow channel between the external air inlet and the air outlet.

7. The hair dryer as described in claim 2, characterized in that: The air inlet includes an air inlet bracket, which is disposed within the filtration space. The filter element is sleeved on the air inlet bracket, and a plurality of first filter holes are opened on the periphery of the air inlet bracket. The filter element is surrounded on the outside of the first filter holes.

8. The hair dryer as described in claim 7, characterized in that: The air inlet includes a guide element, and air enters the body sequentially through the external air inlet, the filter element unit, the first filter hole, and the guide element.

9. The hair dryer as described in claim 7, characterized in that: The air intake bracket includes a first magnetic component, which is disposed at one end of the air intake bracket facing the protective component. The protective component includes a second magnetic component, and the first magnetic component and the second magnetic component are magnetically connected.

10. The hair dryer as described in claim 7, characterized in that: The air inlet bracket is made of a different material than the filter element unit.

11. The hair dryer as described in claim 10, characterized in that: The air inlet bracket is a metal air inlet bracket or a plastic air inlet bracket, and the filter element unit includes a filter layer, which is a non-woven fabric filter layer.

12. The hair dryer as described in claim 2, characterized in that: The protective component is provided with a first extension portion, which extends outward along the circumference of the protective component.

13. The hair dryer as described in claim 2, characterized in that: The air inlet also includes an air inlet housing, the filter space is formed inside the air inlet housing, a gap is provided between the protective component and the air inlet housing, and the external air inlet includes the gap.

14. The hair dryer as described in claim 13, characterized in that: In the axial direction of the air inlet housing, the gap is greater than or equal to 2 mm and less than or equal to 10 mm.

15. The hair dryer as described in claim 2, characterized in that: The air inlet also includes an air inlet housing, the filter space is formed inside the air inlet housing, the protective member abuts against the air inlet housing, and the external air inlet is opened on the air inlet housing.

16. The hair dryer as described in claim 2, characterized in that: The protective component includes a filter bracket, which includes a filter section at least partially disposed within the filter space. The filter section has multiple second filter holes, and air enters the machine body sequentially through the external air inlet, the second filter holes, and the filter element unit.

17. The hair dryer as described in claim 16, characterized in that: In the axial direction of the filter support, the length of the filter support disposed within the filter space is greater than or equal to 12 mm and less than or equal to 30 mm.

18. The hair dryer as described in claim 16, characterized in that: The air inlet also includes an air inlet housing, within which the filter space is formed. The distance between the filter bracket and the air inlet housing within the filter space is greater than or equal to 2 mm and less than or equal to 10 mm.

19. The hair dryer as described in claim 16, characterized in that: The filter bracket has a second extension at one end away from the external air inlet. The second extension abuts against the bottom wall of the filter space and extends outward along the circumference of the filter bracket.

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