A mask air inlet shell and an air inlet device

Abstract

The utility model relates to a face mask air intake auxiliary device technical field, specifically is a face mask air inlet casing and air inlet device, including casing, the casing is equipped with the cavity, the cavity is equipped with including the air duct area and installation cavity, the air duct area is equipped with the air intake area, the air outlet area that communicates with the air intake area, sets up the air duct assembly installation area of air intake area, the installation cavity includes power component installation area and control component installation area, power component installation area and / or control component installation area one side is along the shell inner wall and sets up, and other side and the outer wall of air duct area cooperation setting. The utility model's power component and control component are separated and set up with the air duct area, and arrange along the shell inner wall, realized power component, control component's space integration in the shell radial or lateral, effectively reduced the overall size of air intake auxiliary device, promoted the portability and practicality.

Description

Technical Field

[0001] This utility model relates to the technical field of air intake auxiliary devices for face masks, specifically a face mask air intake shell and air intake device. Background Technology

[0002] Protective face shields are protective equipment used to protect personnel's face and respiratory system from environmental hazards such as dust, chemical splashes, toxic gases, welding sparks, and airborne bacteria. Although existing face shields can filter dust from the air, these face shields usually have poor breathability, and the air exhaled by a person is very likely to be re-inhaled, causing secondary pollution and being harmful to the human body. To solve this problem, a face shield with a fan has appeared on the market to accelerate air circulation.

[0003] For example, the air intake auxiliary device for masks disclosed in Chinese patent document CN205948208U has its electronic components, isolation cover, and fan arranged sequentially along the axis of the air intake auxiliary device, resulting in a large overall size. The electronic components are located between the isolation cover and the fan. Moreover, the airflow first passes through the air duct inside the fan from the air inlet, and then is transferred to the air outlet through the bend of the path. The airflow then passes through the ventilation groove of the isolation cover and is transferred to the air inlet on the outer shell. The fan and the electronic components are in close contact and are isolated from each other by the shell. When the air intake auxiliary device for masks is activated, it cannot effectively remove heat. It is also inconvenient to clean the fan, isolation cover, and outer shell separately.

[0004] As the consumer market for air intake assist devices for face masks continues to expand and consumers' demands for air intake assist devices increase, the industry urgently needs to improve existing air intake assist devices for face masks to enhance overall size miniaturization and ease of cleaning without affecting airflow transfer function. Utility Model Content

[0005] Regarding the aforementioned technical problems of existing face mask air intake auxiliary devices being large in overall size and having numerous air duct components that are inconvenient to clean, the technical solution adopted by this utility model to solve these problems is as follows: A face mask air inlet housing includes a housing with a cavity. The cavity has an air duct area and a mounting cavity. The air duct area has an air inlet area, an air outlet area communicating with the air inlet area, and an air duct component mounting area disposed in the air inlet area. The mounting cavity includes a power component mounting area and a control component mounting area. One side of the power component mounting area and / or the control component mounting area is disposed along the inner wall of the housing, and the other side is disposed in conjunction with the outer wall of the air duct area.

[0006] Furthermore, in some embodiments of this utility model, the control component mounting area includes a first control component mounting area and a second control component mounting area, and the power component mounting area is located between the first control component mounting area and the second control component mounting area.

[0007] Furthermore, in some embodiments of this utility model, the first control component mounting area is arranged in an arc shape along the inner wall of the housing on one side, the second control component mounting area is arranged in an arc shape along the inner wall of the housing on one side, a portion of the power component mounting area is located between the first control component mounting area and the second control component mounting area, and the air duct area is located between the first control component mounting area and the power component mounting area.

[0008] Furthermore, in some embodiments of this utility model, the housing is provided with a first connecting post located in the first control component mounting area and a second connecting post located in the second control component mounting area. The first connecting post is used to limit the first control component located in the first control component mounting area, and the second connecting post is used to limit the second control component located in the second control component mounting area.

[0009] Furthermore, in some embodiments of this utility model, the housing is arc-shaped, a portion of the outer wall of the air duct area is arc-shaped, the air duct component mounting area is provided with a drive component mounting area that cooperates with the control component mounting area, one side of the power component mounting area and / or the control component mounting area is arc-shaped along the inner wall of the housing, and the other side cooperates with the arc-shaped outer wall of the air duct area.

[0010] Furthermore, in some embodiments of this utility model, the housing is provided with a first housing and a second housing that enclose and form the cavity, the first connecting post and the second connecting post are located in the first housing, and the second housing is provided with a second housing connecting groove that respectively cooperates and connects with the first connecting post and the second connecting post.

[0011] Furthermore, in some embodiments of this utility model, the air inlet area is provided with an air inlet located in the second housing and communicating with the cavity, the air outlet area is provided with an air outlet located in the first housing, the air outlet is located on the side away from the second housing, the central axis of the air inlet does not coincide with the central axis of the second housing, the central axis of the air outlet does not coincide with the central axis of the first housing, the central axis of the air inlet and the central axis of the air outlet are not on the same straight line, and the air inlet area and the air outlet area do not overlap or partially overlap.

[0012] Furthermore, in some embodiments of this utility model, the second housing is provided with a buckle connected to the component, a second housing mounting groove for the buckle to slide, an elastic element located between the buckle and the second housing mounting groove, and a second housing cover plate connected to the upper side of the second housing mounting groove. The buckle is provided with a sliding end located in the second housing mounting groove and a buckle end connected to the sliding end. The buckle is L-shaped. The second housing cover plate is used to restrict the buckle from moving up and down. The second housing cover plate is provided with a second housing cover plate opening for the buckle end to extend out.

[0013] Furthermore, in some embodiments of the present invention, the first housing is provided with a switch assembly for cooperating with the first control component mounting area and / or the second control component mounting area, a charging port for cooperating with the power component mounting area, and a first power component mounting groove extending away from the second housing. The second housing is provided with a second power component mounting groove extending away from the first housing. The first power component mounting groove and the second power component mounting groove together form the power component mounting area.

[0014] Another objective of this invention is to provide an air intake device, comprising the face mask air intake housing as described above.

[0015] The beneficial effects of this utility model are as follows: In this invention, the power supply and control components are separated from the air duct area and arranged along the inner wall of the housing. This achieves spatial integration of the power supply and control components in the radial or lateral direction of the housing, avoiding the volume redundancy caused by traditional coaxial straight-line structures. This effectively reduces the overall size of the air intake auxiliary device, improving portability and practicality. The air intake area, air outlet area, and air duct component installation area are concentrated within the air duct area, facilitating overall disassembly and cleaning. The airflow path is more direct, reducing multiple bends and transfers in traditional structures, lowering airflow resistance and noise, and improving air intake efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the air inlet housing of a face mask according to the present invention.

[0017] Figure 2 for Figure 1 AA sectional view.

[0018] Figure 3 This is a schematic diagram of the air inlet housing of a face mask according to this utility model from another perspective.

[0019] Figure 4 This is an exploded view of the air inlet shell of a face mask according to the present invention.

[0020] Figure 5This is a schematic diagram of the air inlet housing of a face mask according to the present invention (the first housing is omitted).

[0021] Figure 6 This is a top view of the second housing of this utility model.

[0022] Figure 7 This is a schematic diagram of the second housing of this utility model. Detailed Implementation

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0024] It should be noted that all directional indications in this utility model embodiment, such as (up, down, left, right, front, back, etc.), are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly.

[0025] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0026] Example 1 like Figures 1 to 7 The mask air inlet housing shown includes a housing 1, the housing 1 having a cavity 2, the cavity 2 having an air duct area 21 and a mounting cavity 22, the air duct area 21 having an air inlet area 211, an air outlet area 212 communicating with the air inlet area 211, and an air duct component mounting area 213 disposed in the air inlet area 211, the mounting cavity 22 having a power component mounting area 221 and a control component mounting area 222, one side of the power component mounting area 221 and / or the control component mounting area 222 being disposed along the inner wall of the housing 1, and the other side being disposed in conjunction with the outer wall of the air duct area 21.

[0027] In this invention, the power supply and control components are separated from the air duct area and arranged along the inner wall of the housing. This achieves spatial integration of the power supply and control components in the radial or lateral direction of the housing, avoiding the volume redundancy caused by traditional coaxial straight-line structures. This effectively reduces the overall size of the air intake auxiliary device, improving portability and practicality. The air intake area, air outlet area, and air duct component installation area are concentrated within the air duct area, facilitating overall disassembly and cleaning. The airflow path is more direct, reducing multiple bends and transfers in traditional structures, lowering airflow resistance and noise, and improving air intake efficiency.

[0028] Specifically, the power supply and control components are independently housed in the mounting cavity, which is relatively separated from the air duct area. This not only reduces the impact of dust and moisture on electronic components, but also makes it easier for users to disassemble, clean, or replace the air duct components or electronic modules individually, thus improving the maintainability and service life of the device.

[0029] Optionally, in some embodiments, the power supply components and control components are distributed on the inner wall of the housing. The power supply components, control components and air duct area are naturally separated by the housing structure, which not only ensures the installation stability of electronic components, but also facilitates natural heat dissipation and avoids heat concentration. Specifically, when the airflow passes through the air duct area, it can simultaneously carry away the surrounding heat, without the need for additional heat dissipation structure. This not only optimizes the heat dissipation effect, but also further simplifies the overall structure and reduces the assembly difficulty.

[0030] Example 2 Based on Example 1, Example 2 also has the following implementation method: like Figures 4 to 7 The mask air inlet housing shown includes a control component mounting area 222 comprising a first control component mounting area 2221 and a second control component mounting area 2222, with the power component mounting area 221 located between the first control component mounting area 2221 and the second control component mounting area 2222.

[0031] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the present invention places the power supply component mounting area between the first control component mounting area and the second control component mounting area. The power supply component is surrounded or spaced apart by the control component mounting areas on both sides. This layout makes full use of the internal space of the housing, realizes the compact arrangement of the control component and the power supply component in the mounting cavity, optimizes the distribution structure of the internal components, reduces local space stacking, and helps to reduce the overall volume and improve space utilization.

[0032] Specifically, the connection path between the power supply component and the two sets of control components is shorter, which simplifies the wiring structure, reduces assembly complexity, facilitates the balanced distribution and conduction of heat, and improves the overall heat dissipation stability.

[0033] Example 3 Based on Example 2, Example 3 also has the following implementation method: like Figures 4 to 7 The mask air inlet housing shown has a first control component mounting area 2221 arranged in an arc shape along the inner wall of the housing 1 on one side, a second control component mounting area 2222 arranged in an arc shape along the inner wall of the housing 1 on one side, a portion of the power component mounting area 221 located between the first control component mounting area 2221 and the second control component mounting area 2222, and the air duct area 21 located between the first control component mounting area 2221 and the power component mounting area 221.

[0034] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the spatial layout of the control component mounting area is more compact and conforms to the curved structure of the housing, which is conducive to improving space utilization and reducing the overall thickness; part of the power component mounting area is located between the first control component mounting area and the second control component mounting area, forming a surrounding or segmented integrated layout, which further optimizes the radial arrangement of electronic components, helps to reduce the axial dimension, and realizes the miniaturization of the device.

[0035] Specifically, the air duct area is independently set between the first control component installation area and the power component installation area to avoid direct contact or interference between airflow and electronic components, making the intake airflow path more direct and smooth, reducing multiple turns and obstructions in the traditional structure, thereby reducing wind resistance and airflow noise, and improving intake efficiency.

[0036] Specifically, the control components and power supply components are set up relatively independently and separated from the air duct area, which makes it easy for users to disassemble, clean or replace the air duct components, filters or electronic modules separately, reducing maintenance difficulty. At the same time, the arc-shaped structure design reduces dead corners and dust accumulation areas, further improving cleaning convenience.

[0037] Example 4 Based on Example 2, Example 4 also has the following implementation method: like Figures 4 to 7 The mask air inlet housing shown has a first connecting post 11 located in the first control component mounting area 2221 and a second connecting post 12 located in the second control component mounting area 2222. The first connecting post 11 is used to limit the first control component 111 located in the first control component mounting area 2221, and the second connecting post 12 is used to limit the second control component 121 located in the second control component mounting area 2222.

[0038] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the present invention, by setting a first connecting post in the first control component mounting area and a second connecting post in the second control component mounting area, can quickly position and limit the first control component and the second control component, avoid the component from shifting or shaking during installation, improve assembly accuracy and stability, and at the same time simplify the assembly process and improve assembly efficiency.

[0039] Specifically, the limiting setting of the connecting column maintains a distance between the control component and the inner wall of the housing, which not only provides sufficient space for wiring but also facilitates airflow around the component, further optimizing the heat dissipation effect and avoiding local heat accumulation that could affect the component's service life.

[0040] Example 5 Example 5, based on Example 1, also has the following implementation method: like Figures 4 to 7 The mask air inlet housing shown has an arc-shaped housing 1 and a portion of the outer wall of the air duct area 21 is arc-shaped. The air duct component mounting area 213 is provided with a drive component mounting area 214 that cooperates with the control component mounting area 222. One side of the power component mounting area 221 and / or the control component mounting area 222 is arc-shaped along the inner wall of the housing 1, and the other side cooperates with the arc-shaped outer wall of the air duct area 21.

[0041] Furthermore, as a preferred embodiment of this utility model and not a limitation, a portion of the outer wall of the air duct area is arc-shaped, consistent with the overall shape of the housing, which facilitates smooth airflow, reduces eddy resistance, and improves ventilation efficiency. The air duct component installation area is provided with a drive component installation area that cooperates with the control component installation area, which facilitates the close placement of drive components such as fans and air pumps with the control circuit, shortening the connection lines. One side of the power component installation area and / or the control component installation area is arc-shaped along the inner wall of the housing, and the other side cooperates with the arc-shaped outer wall of the air duct area to form a tightly fitting spatial nesting structure, making full use of the curved space inside the housing, realizing the efficient integration of electronic components and the air duct system, improving space utilization, and reducing the overall volume.

[0042] Example 6 Based on Example 2, Example 6 also has the following implementation method: like Figures 4 to 7 The mask air inlet housing shown has a first housing 3 and a second housing 4 that enclose the cavity 2. The first connecting post 11 and the second connecting post 12 are located in the first housing 3. The second housing 4 has a second housing connecting groove 401 that is respectively connected to the first connecting post 11 and the second connecting post 12.

[0043] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, this utility model features a first connecting post and a second connecting post in the first housing, and a corresponding connecting groove in the second housing. The two work together to achieve rapid positioning and assembly of the first and second housings, improving the accuracy and efficiency of housing assembly while ensuring the sealing performance of the cavity and preventing air leakage from affecting ventilation. The cooperative design of the connecting post and connecting groove, combined with the arc-shaped housing design, not only serves a positioning function but also forms a stable snap-fit ​​or limiting structure after assembly, enhancing the overall mechanical strength and deformation resistance of the housing and ensuring that it is not easily loosened or damaged during wear or use.

[0044] Optionally, in some embodiments, the first housing and the second housing can also be fixed together by means of snap-fit ​​connection, magnetic connection, threaded connection, mortise and tenon connection, or fastener connection such as screw connection.

[0045] Example 7 Example 7, based on Example 6, also has the following implementation method: like Figures 1 to 7 The mask air inlet housing shown has an air inlet 40 located in the second housing 4 and communicating with the cavity 2 in the air inlet area 211. The air outlet area 212 has an air outlet 30 located in the first housing 3. The air outlet 30 is located on the side away from the second housing 4. The central axis of the air inlet 40 does not coincide with the central axis of the second housing 4, and the central axis of the air outlet 30 does not coincide with the central axis of the first housing 3. The central axes of the air inlet 40 and the air outlet 30 are not on the same straight line, and the air inlet area 211 and the air outlet area 212 do not overlap or partially overlap.

[0046] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the air inlet and air outlet of the present invention adopt an asymmetrical, non-coaxial and non-linear through-flow layout design, so that the intake airflow and the exhaust airflow form independent and staggered flow paths within the housing, effectively avoiding airflow short-circuiting or mutual interference, reducing eddies and turbulence, thereby reducing wind resistance and airflow noise, and improving intake efficiency.

[0047] Specifically, the central axes of the air inlet and outlet are offset and not collinear. Combined with the relatively independent setting of the air inlet area and the air outlet area, this can effectively prevent the cross-mixing of filtered airflow and external untreated airflow, reducing the risk of repeated intake or airflow recirculation.

[0048] Example 8 Example 8, based on Example 6, also has the following implementation method: like Figures 1 to 4The mask air inlet housing shown has a second housing 4 with a buckle 41 for connecting to components, a second housing mounting groove 42 for the buckle 41 to slide, an elastic element located between the buckle 41 and the second housing mounting groove 42, and a second housing cover plate 44 connected to the upper side of the second housing mounting groove 42. The buckle 41 has a sliding end 411 located in the second housing mounting groove 42 and a buckle end 412 connected to the sliding end 411. The buckle 41 is L-shaped. The second housing cover plate 44 is used to restrict the up and down movement of the buckle 41. The second housing cover plate 44 has a second housing cover plate opening 441 for the buckle end 412 to extend out.

[0049] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the present invention uses a combination structure of an L-shaped buckle, a sliding mounting groove, an elastic element, and a limiting cover plate in the second housing to achieve quick snap-fit ​​fixing of components to the housing without the need for additional fastening tools, simplifying the assembly process and improving assembly efficiency. At the same time, the elastic element enables the buckle to have a buffer reset capability, ensuring the stability and reliability of the connection.

[0050] Specifically, the latch slides within the mounting groove via its sliding end, and the cover plate restricts its vertical displacement. This ensures the accuracy of the latch's action and prevents it from loosening or shifting during use. Furthermore, the L-shaped structure optimizes the force distribution on the latch, improving connection strength and eliminating the need for additional cavity space, making it suitable for miniaturized device designs. Specifically, when external force is applied, the latch is compressed, overcoming the elastic force of the elastic element to unlock. After the external force is removed, the elastic element pushes the latch back to its original position, achieving automatic locking.

[0051] Specifically, pressing the buckle end releases the connection with the component, making disassembly convenient. Combined with the detachable structure of the housing, it facilitates quick disassembly of components for cleaning or replacement.

[0052] Example 9 Example 9, based on Example 3, also has the following implementation method: like Figures 1 to 4 The mask air inlet housing shown has a first housing 3 with a switch assembly 31 for cooperating with the first control component mounting area 2221 and / or the second control component mounting area 2222, a charging port 32 for cooperating with the power component mounting area 221, and a first power component mounting groove 33 extending away from the second housing 4. The second housing 4 has a second power component mounting groove 43 extending away from the first housing 3. The first power component mounting groove 33 and the second power component mounting groove 43 enclose the power component mounting area 221.

[0053] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, the power component can be accurately positioned and firmly fixed in the housing through the enclosing structure of the first power component mounting slot and the second power component mounting slot, ensuring that the power component, such as the battery, is installed stably and not easily loosened, improving the installation firmness and shock resistance, while making the layout of the power component more compact and efficient, optimizing the utilization rate of the internal space of the housing, and helping to reduce the overall size of the device.

[0054] Specifically, the switch assembly and charging port are directly located in the first housing and are installed in conjunction with the control assembly area, so that the power control and charging functions are integrated in the same housing area, which is convenient for user operation and daily use. At the same time, the power assembly is modularly assembled through corresponding mounting slots in the two housings, which simplifies the assembly process, improves production efficiency, and reduces assembly difficulty.

[0055] Example 10 Example 10, based on the above examples, also has the following implementation method: like Figures 1 to 7 The air intake device shown includes the face mask air intake housing as described above.

[0056] This invention's air intake device, by employing the aforementioned face mask air intake housing, efficiently integrates the air duct assembly, control assembly, and power supply assembly within the arc-shaped housing, reducing the overall size and space occupied by the air intake device. The housing adopts a split design with positioning connection structures and quick-release buckles, facilitating the installation, maintenance, and cleaning of internal components. This invention's air intake device offers advantages such as smooth airflow, high ventilation efficiency, good backflow prevention, reliable electrical connection, and convenient assembly and disassembly, making it suitable for prolonged wear in personal respiratory protection scenarios and demonstrating excellent practicality.

[0057] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A face mask air inlet housing, comprising a housing (1), wherein the housing (1) is provided with a cavity (2), characterized in that: The cavity (2) is provided with an air duct area (21) and an installation cavity (22). The air duct area (21) is provided with an air inlet area (211), an air outlet area (212) connected to the air inlet area (211), and an air duct component installation area (213) provided in the air inlet area (211). The installation cavity (22) includes a power component installation area (221) and a control component installation area (222). One side of the power component installation area (221) and / or the control component installation area (222) is provided along the inner wall of the housing (1), and the other side is provided in conjunction with the outer wall of the air duct area (21).

2. The face mask air inlet housing according to claim 1, characterized in that: The control component mounting area (222) includes a first control component mounting area (2221) and a second control component mounting area (2222), and the power component mounting area (221) is located between the first control component mounting area (2221) and the second control component mounting area (2222).

3. The face mask air inlet housing according to claim 2, characterized in that: The first control component mounting area (2221) is arranged in an arc shape along the inner wall of the housing (1) on one side, and the second control component mounting area (2222) is arranged in an arc shape along the inner wall of the housing (1) on one side. Part of the power component mounting area (221) is located between the first control component mounting area (2221) and the second control component mounting area (2222). The air duct area (21) is located between the first control component mounting area (2221) and the power component mounting area (221).

4. The face mask air inlet housing according to claim 2, characterized in that: The housing (1) is provided with a first connecting post (11) located in the first control component mounting area (2221) and a second connecting post (12) located in the second control component mounting area (2222). The first connecting post (11) is used to limit the first control component (111) located in the first control component mounting area (2221), and the second connecting post (12) is used to limit the second control component (121) located in the second control component mounting area (2222).

5. The face mask air inlet housing according to claim 1, characterized in that: The housing (1) is arc-shaped, and part of the outer wall of the air duct area (21) is arc-shaped. The air duct component installation area (213) is provided with a drive component installation area (214) that cooperates with the control component installation area (222). One side of the power component installation area (221) and / or the control component installation area (222) is arc-shaped along the inner wall of the housing (1), and the other side cooperates with the arc-shaped outer wall of the air duct area (21).

6. The face mask air inlet housing according to claim 4, characterized in that: The housing (1) is provided with a first housing (3) and a second housing (4) that enclose the cavity (2). The first connecting post (11) and the second connecting post (12) are located in the first housing (3). The second housing (4) is provided with a second housing connecting groove (401) that is respectively connected to the first connecting post (11) and the second connecting post (12).

7. The face mask air inlet housing according to claim 6, characterized in that: The air inlet area (211) is provided with an air inlet (40) located in the second housing (4) and communicating with the cavity (2). The air outlet area (212) is provided with an air outlet (30) located in the first housing (3). The air outlet (30) is located on the side away from the second housing (4). The central axis of the air inlet (40) does not coincide with the central axis of the second housing (4). The central axis of the air outlet (30) does not coincide with the central axis of the first housing (3). The central axis of the air inlet (40) and the central axis of the air outlet (30) are not on the same straight line. The air inlet area (211) and the air outlet area (212) do not overlap or partially overlap.

8. The face mask air inlet housing according to claim 6, characterized in that: The second housing (4) is provided with a buckle (41) connected to the component, a second housing mounting groove (42) for the buckle (41) to slide, an elastic element located between the buckle (41) and the second housing mounting groove (42), and a second housing cover plate (44) connected to the upper side of the second housing mounting groove (42). The buckle (41) is provided with a sliding end (411) located in the second housing mounting groove (42) and a buckle end (412) connected to the sliding end (411). The buckle (41) is L-shaped. The second housing cover plate (44) is used to restrict the buckle (41) from moving up and down. The second housing cover plate (44) is provided with a second housing cover plate opening (441) for the buckle end (412) to extend out.

9. A face mask air inlet housing according to claim 6, characterized in that: The first housing (3) is provided with a switch assembly (31) that cooperates with the first control component mounting area (2221) and / or the second control component mounting area (2222), a charging connection port (32) that cooperates with the power component mounting area (221), and a first power component mounting groove (33) extending away from the second housing (4). The second housing (4) is provided with a second power component mounting groove (43) extending away from the first housing (3). The first power component mounting groove (33) and the second power component mounting groove (43) enclose the power component mounting area (221).

10. An air intake device, characterized in that: Includes the face mask air inlet housing as described in any one of claims 1-9.

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