A portable respiratory therapy device

Abstract

This application discloses a portable respiratory therapy device, including a housing and a fan assembly disposed inside the housing. The fan assembly has an air inlet and an air outlet. The housing has a first end face and a second end face along a first direction. The first end face has an air inlet communicating with the air inlet, and the second end face has an air outlet communicating with the air outlet. The axes of the air inlet and the air outlet are parallel. The overall airflow direction within the device is along the first direction. This lengthens the airflow path, achieving a noise reduction effect, and also avoids large-area overlap between multiple air paths and between the air paths and the fan assembly in the height direction. This helps reduce the thickness of the device and reduces the possibility of noise superposition in different sections of the air path structure. When the user grips the housing, the air inlet and air outlet are on different planes from the user's hand, thus avoiding obstruction of the air inlet and air outlet by the hand and ensuring smooth airflow.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, specifically relating to a portable respiratory therapy device. Background Technology

[0002] Ventilators and other respiratory therapy equipment are used to assist patients with breathing difficulties or those unable to breathe independently. With advancements in technology and improved living standards, respiratory therapy equipment is gradually moving from hospitals and clinics into homes, allowing users to use it independently at home. Consequently, traditional large-scale respiratory therapy equipment used in hospitals, due to its large size and high cost, is increasingly unable to meet the needs of home use.

[0003] Therefore, in recent years, more and more miniaturized and portable respiratory therapy devices have appeared on the market. Some respiratory therapy devices can even be held with one hand, making them more convenient for users to use or carry around. They are also relatively inexpensive, reducing the financial burden on users.

[0004] However, the internal airflow design of miniaturized respiratory therapy devices, as well as the placement of the inlet and outlet, is very compact. Because components such as blowers need to be housed within these devices, occupying a significant amount of internal space, the layout and design of the airflow structure become quite challenging. To improve noise reduction, airflow energy is often reduced by extending the airflow path. This extension further complicates the layout within the limited space, leading to overlapping segments in the airflow structure. For example, airflow exiting the blower may return to the respiratory therapy device. This results in a complex overall structural layout, and the overlapping airflow segments often cause noise accumulation, negatively impacting the user experience.

[0005] Furthermore, portable respiratory therapy devices often require users to hold or carry them in a more convenient way. Due to their small overall size, the surface area available for users to grip is also small. The outer surface of the respiratory therapy device also has air inlets and outlets, and during use, an output tube is connected to the outlet. Therefore, when users grip the outer casing, there is a problem of interference between their hand and the air inlet / outlet structures. For example, if the hand blocks the air inlet, it will cause poor air intake; if the hand interferes with the outlet tube, it will affect the stability of the connection between the tube and the outlet. Utility Model Content

[0006] This application provides a portable respiratory therapy device to solve the problems of messy internal airway structure layout and noise superposition in existing miniaturized respiratory therapy devices, as well as the inconvenience of holding and using miniaturized respiratory therapy devices, which easily affects the air intake and exhaust effect.

[0007] The technical solution adopted in this application is as follows:

[0008] A portable respiratory therapy device includes a housing and a fan assembly disposed inside the housing. The fan assembly has an air inlet and an air outlet. The housing has a first end face and a second end face along a first direction. The first end face has an air inlet communicating with the air inlet, and the second end face has an air outlet communicating with the air outlet. The axis of the air inlet and the axis of the air outlet are arranged parallel to each other.

[0009] Along the first direction, the inside of the casing is provided with an air inlet buffer zone, a fan installation zone and an air outlet buffer zone in sequence, with the air inlet located in the air inlet buffer zone and the air outlet located in the air outlet buffer zone.

[0010] The air intake buffer zone is equipped with an air intake shell, which has an inlet and an outlet. Inside the air intake shell, there are flow guide ribs that extend in a spiral shape in a plane perpendicular to the first direction and form a spiral air intake duct. The airflow enters the inlet after passing through the air intake port, and flows from the outlet to the fan installation area after passing through the air intake duct.

[0011] The air intake housing is also provided with a flow divider located in the air intake duct. The flow divider includes a flow divider rib extending spirally from the inlet to the outlet to divide the air intake duct into a first spiral section and a second spiral section in parallel.

[0012] The diverter rib can extend into the inlet to be positioned and matched with the edge of the inlet, and divide the inlet into a first airflow inlet and a second airflow inlet. The first airflow inlet is connected to the first spiral section, and the second airflow inlet is connected to the second spiral section.

[0013] A first end cap is provided at the first end face, and a battery mounting groove is provided on the side of the air intake shell facing the first end cap. The first end cap is provided with a limiting rib, which can abut against the battery to restrict the battery in the battery mounting groove.

[0014] The fan installation area has an inner shell. Along a direction perpendicular to the first direction, the inner shell forms an air guide zone and an assembly zone. The fan assembly is installed in the assembly zone. The air guide zone and the air inlet are connected to deliver gas to the fan assembly.

[0015] The thickness of the air guide zone is less than the thickness of the assembly zone, so that an installation space for mounting the circuit board is formed between the mounting inner shell and the outer shell corresponding to the air guide zone.

[0016] The portable respiratory therapy device also includes a circuit board, which comprises a first board and a second board, with at least a portion of the first board located within the mounting space and the second board located in the exhaust buffer zone.

[0017] The axis of the fan assembly is perpendicular to the first direction. The air inlet is located at the top of the fan assembly. The air guiding area includes an extension section and a guide section connected to the air inlet. There is a bend between the extension section and the guide section, and a sound-absorbing component is provided at the bend.

[0018] The fan assembly includes an impeller section and a drive section. The housing of the drive section is supported by the mounting inner housing, and there is a buffer gap between the drive shaft of the drive section and the mounting inner housing.

[0019] The fan assembly is located in the fan installation area. The air outlet is connected to the air outlet pipe. The air outlet buffer zone is equipped with a connecting pipe that connects to the air outlet pipe, so that the air outlet pipe and the connecting pipe form an air outlet duct. The air outlet pipe forms an arc-shaped bend flow channel.

[0020] An air outlet grille is installed inside the air outlet duct to divide the air outlet duct into multiple air outlet openings, and the air outlet grille is at least partially located inside the air outlet pipe.

[0021] The second end face is provided with a insertion groove, and the air outlet is located in the insertion groove. The groove wall of the insertion groove is provided with a guide slope, and the inner circumference of the air outlet is provided with a snap-fit ​​structure for snap-fit ​​and fixing with the pipeline.

[0022] Part of the outer shell is covered with a decorative shell to form a step between the decorative shell and the shell, and the step forms a gripping area.

[0023] The portable respiratory therapy device also includes a button assembly, which includes a button and a sealing gasket. The button is fixed to the sealing gasket, which is fixed to the housing. The housing has a passage for the button to pass through.

[0024] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0025] 1. In this application, the housing has a first end face and a second end face at both ends along the first direction. The first end face has an air inlet, and the second end face has an air outlet. The overall airflow direction within the respiratory therapy device is along the first direction. This elongates the airflow path, achieving noise reduction, and also avoids large-area overlap between multiple air paths and between the air paths and the fan assembly in the height direction. This helps reduce the overall thickness of the respiratory therapy device, reduces the possibility of noise superposition in different sections of the air path structure, and reduces the transfer of vibration and heat from the fan assembly to the air path, preventing the airflow temperature from rising and causing user discomfort. Furthermore, the housing can also be designed as a slender structure along the first direction, making it convenient for users to hold and carry with one hand, thus facilitating user operation.

[0026] Furthermore, because the casing is elongated in the first direction, with the air inlet located on the first end face and the air outlet on the second end face, and the pipe connected to the air outlet also located on the second end face, when the user grips the casing, the air inlet and air outlet are on different planes from the user's hand. This avoids the hand obstructing the air inlet and air outlet, ensuring smooth airflow. At the same time, the user's hand is less likely to interfere with the pipe connected to the air outlet, ensuring the stability of the connection between the pipe and the air outlet.

[0027] 2. As a preferred embodiment of this application, along the first direction, the interior of the housing is sequentially provided with an air inlet buffer zone, a fan installation zone, and an air outlet buffer zone. The air inlet is located in the air inlet buffer zone, and the air outlet is located in the air outlet buffer zone. The interior of the housing is divided into multiple regions along the first direction. After the airflow enters through the air inlet, it sequentially passes through the air inlet buffer zone, the fan installation zone, and the air outlet buffer zone, and then flows out through the air outlet. The airflow flows unidirectionally between the regions without reversing, which improves the air outlet efficiency and makes the air inlet and outlet air paths as far apart as possible, preventing air path stacking. This avoids the superposition of air inlet noise and air outlet noise, improves the noise reduction effect, and optimizes the overall layout of the machine.

[0028] 3. In a preferred embodiment of this application, the air intake buffer zone is provided with an air intake shell, which has an inlet and an outlet. The air intake shell contains guide ribs that extend spirally in a plane perpendicular to the first direction, forming a spiral air intake duct. Airflow enters the inlet after passing through the air intake port, and then flows from the outlet to the fan installation area through the air intake duct. The spiral air intake duct formed within the air intake shell by the guide ribs has the inlet located in the inner circle of the air intake duct and the outlet located in the outer circle. After entering the air intake duct from the inlet, the airflow gradually spirals outwards and finally flows out from the outlet to the fan assembly. The spirally extending air intake duct has a layered, encircling structure, which not only effectively lengthens the air intake duct within a limited space but also better suits miniaturized respiratory therapy equipment. Furthermore, the spiral air intake duct offers smoother and gentler turning, eliminating sharp bends. This allows for a smoother and more gradual airflow transition, resulting in gentler contact between the airflow and the inner wall of the duct, reducing violent collisions and noise. Simultaneously, the rotating airflow effectively prevents turbulence, enhancing airflow efficiency. Moreover, at least a portion of the air intake duct overlaps radially, causing sound waves to reflect and cancel each other out within the duct, further reducing noise reduction.

[0029] 4. In a preferred embodiment of this application, the fan assembly includes an impeller and a drive unit. The housing of the drive unit is supported by the mounting inner housing, and a buffer gap exists between the drive shaft of the drive unit and the mounting inner housing. The drive unit is a motor. When the fan assembly is working, the drive shaft of the drive unit drives the impeller to rotate. Therefore, the vibration generated by the drive shaft is relatively strong, and the heat generated is also higher and more concentrated. By providing a buffer gap between the drive shaft and the mounting inner housing, the drive shaft is in a "suspended" state relative to the mounting inner housing. On the one hand, the heat generated by the drive shaft can be dissipated through the buffer gap, avoiding direct heat transfer to the mounting inner housing through contact. On the other hand, it can also reduce the vibration transmitted from the drive shaft to the mounting inner housing, preventing vibration of the mounting inner housing or even the housing itself, thus improving the user experience.

[0030] 5. In a preferred embodiment of this application, the axis of the fan assembly is perpendicular to the first direction. The air inlet is located at the top of the fan assembly. The air guiding area includes an extension section and a guide section communicating with the air inlet. A bend is provided between the extension section and the guide section, and a silencer is provided at the bend. The axis of the extension section coincides with that of the outlet, allowing the airflow to flow smoothly through the outlet into the extension section. Since the suction force on the airflow is stronger the closer it is to the fan assembly, the smoothly extended air path can reduce the probability of airflow colliding with the inner wall of the air inlet channel while ensuring smooth and efficient air intake, thus avoiding noise generation and problems such as poor airflow. The angle between the extension section and the guide section not only guides the airflow to change direction again, thus extending the air path and reducing noise, but also helps to arrange the extension section and the guide section on different sides of the fan assembly. This allows the airflow channel to surround or enclose multiple sides of the fan assembly, making the layout of the airflow channel and the fan assembly more compact and reasonable, saving internal space of the respiratory therapy equipment, and helping to achieve the miniaturization design of the respiratory therapy equipment. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0032] Figure 1 This is a schematic diagram of the structure of a respiratory therapy device according to one embodiment of this application;

[0033] Figure 2 for Figure 1 A structural schematic diagram of a respiratory therapy device from another perspective;

[0034] Figure 3 This is a schematic diagram of the internal structure of a respiratory therapy device according to one embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the air intake shell according to one embodiment of this application;

[0036] Figure 5 This is an exploded view of the intake casing according to one embodiment of this application;

[0037] Figure 6 This is a schematic diagram of the internal structure of the air intake shell according to one embodiment of this application;

[0038] Figure 7 for Figure 6 A schematic diagram of the central air intake casing from another perspective;

[0039] Figure 8 This is a schematic diagram of the flow divider according to one embodiment of this application;

[0040] Figure 9 This is a schematic diagram of the air intake shell according to one embodiment of this application;

[0041] Figure 10 This is an exploded view of a portion of the structure of a respiratory therapy device according to one embodiment of this application;

[0042] Figure 11 This is a schematic diagram of the structure of the first end cap according to one embodiment of this application;

[0043] Figure 12 for Figure 11 A schematic diagram of the structure of the first end cap, where the air intake grille is not shown;

[0044] Figure 13 This is a schematic diagram of the structure of the first end cap according to one embodiment of this application;

[0045] Figure 14 This is a schematic diagram of the structure of the other side of the first end cap according to one embodiment of this application;

[0046] Figure 15 This is a schematic diagram of the structure of the first sealing ring according to one embodiment of this application;

[0047] Figure 16 This is a schematic diagram of one side of the housing according to one embodiment of this application;

[0048] Figure 17 This is a schematic diagram of the structure of the second end cap according to one embodiment of this application;

[0049] Figure 18 This is a schematic diagram of the structure of the second sealing ring according to one embodiment of this application;

[0050] Figure 19 for Figure 17 A schematic diagram of the structure on the other side of the second end cap;

[0051] Figure 20 This is a schematic diagram of the structure of the other side of the housing according to one embodiment of this application;

[0052] Figure 21 This is a schematic diagram of the internal structure of the housing according to one embodiment of this application;

[0053] Figure 22 for Figure 21 A schematic diagram of the internal structure on the other side of the middle shell;

[0054] Figure 23 This is an exploded view of the shell portion structure according to one embodiment of this application;

[0055] Figure 24 This is a schematic diagram of the internal structure of the mounting inner shell according to one embodiment of this application;

[0056] Figure 25 This is a cross-sectional view of a respiratory therapy device according to one embodiment of this application;

[0057] Figure 26 This is a cross-sectional view of a respiratory therapy device according to one embodiment of this application from another perspective;

[0058] Figure 27 This is a cross-sectional view of a respiratory therapy device according to one embodiment of this application from another perspective;

[0059] Figure 28 for Figure 27 A magnified view of area A in the middle;

[0060] Figure 29 This is a cross-sectional view of a respiratory therapy device according to one embodiment of this application from another perspective;

[0061] Figure 30 This is a schematic diagram of the structure of the first outer shell according to one embodiment of this application;

[0062] Figure 31 This is an exploded view of the structure of a button assembly according to one embodiment of this application;

[0063] Figure 32 This is an exploded view of the internal structure of the housing according to one embodiment of this application;

[0064] Figure 33 This is a schematic diagram of the structure of the air outlet pipe according to one embodiment of this application;

[0065] Figure 34 for Figure 33 Cross-sectional view of the central vent pipe;

[0066] Figure 35This is an exploded view of the structure of a wind turbine assembly according to one embodiment of this application.

[0067] in:

[0068] 1. Housing; 11. First outer shell; 111. Insertion groove; 112. Second mating hole; 113. Fixing rib; 114. First mating surface; 115. Positioning groove; 12. Second outer shell; 121. First fixing post; 122. Second fixing post; 123. Positioning part; 124. Second mating surface; 125. Positioning rib; 13. Decorative shell; 14. Support base; 15. Exhaust pipe; 151. Exhaust grille; 152. Exhaust duct; 153. Bent flow channel; 16. Connecting pipe; 17. Inlet buffer zone; 18. Fan mounting area; 181. First plate; 182. Positioning notch; 183. Mounting base; 184. Second plate; 19. Exhaust buffer zone; 191. Pressure detection element;

[0069] 2 First end cap; 21 First end face; 22 Power interface; 23 Air inlet; 24 Mounting groove; 241 Limiting rib; 25 Hand groove; 26 First fixing hole; 27 Limiting rib; 28 First sealing ring; 281 Positioning lip; 29 Insertion rib;

[0070] 3. Air intake grille; 31. Filter components;

[0071] 4 Second end cap; 41 Second end face; 42 Air outlet; 421 Snap-fit ​​structure; 43 Guide slope; 44 Second sealing ring; 441 First sealing part; 442 Second sealing part; 45 Limiting part; 451 Insertion groove; 46 Second fixing hole; 47 Cover;

[0072] 5. Inlet housing; 51. Inlet; 511. First airflow inlet; 512. Second airflow inlet; 513. Battery mounting slot; 514. First mating hole; 52. Outlet; 53. Buffer; 531. Noise reduction component; 54. First body; 55. Second body; 56. Guide rib; 561. Mating structure; 57. Air inlet duct; 571. First spiral section; 572. Second spiral section; 58. Flow divider; 581. Guide section; 5811. Guide slope; 582. Flow divider; 583. Fixing structure; 59. Mating rib;

[0073] 6. Install inner shell; 61. Positioning protrusion; 62. Base; 621. Positioning port; 63. Top cover; 631. Air inlet duct; 64. Fixing groove; 65. Airflow channel; 651. Silencing component; 652. Extension section; 653. Guide section; 654. First grille; 66. Sealing strip;

[0074] 7-button assembly; 71-button; 72-sealing gasket;

[0075] 8. Connecting bracket; 81. Fixing lug; 82. Inserting protrusion;

[0076] 9 Fan assembly; 91 Air inlet; 92 Vibration damping pad; 93 Fan; 94 Fan sleeve; 95 Impeller; 96 Drive unit; 961 Drive shaft; 962 Buffer clearance. Detailed Implementation

[0077] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0078] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0079] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0080] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0081] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0082] like Figures 1 to 35As shown, a portable respiratory therapy device includes a housing 1 and a fan assembly 9 disposed inside the housing 1. The fan assembly 9 has an air inlet 91 and an air outlet. The housing 1 has a first end face 21 and a second end face 41 along a first direction. The first end face 21 has an air inlet 23 communicating with the air inlet 91, and the second end face 41 has an air outlet 42 communicating with the air outlet. The axis of the air inlet 23 and the axis of the air outlet 42 are arranged parallel to each other.

[0083] Preferably, such as Figures 1 to 3 As shown, the first direction is the length direction of the housing 1. Preferably, as... Figure 1 , Figure 2 As shown, when the housing 1 is placed on the table, the first direction is horizontal so that the first end face 21 and the second end face 41 are located at the left and right ends of the housing 1. In this way, the table will not block the air inlet 23 and the air outlet 42, ensuring smooth air intake and exhaust.

[0084] In this application, the housing 1 has a first end face 21 and a second end face 41 at both ends along the first direction. The first end face 21 has an air inlet 23, and the second end face 41 has an air outlet 42. The overall airflow direction within the respiratory therapy device is along the first direction. This elongates the airflow path, achieving a noise reduction effect, and also avoids large-area overlap in the height direction between multiple air paths and between the air paths and the fan assembly 9. This helps reduce the overall thickness of the respiratory therapy device, reduces the possibility of noise superposition in different sections of the air path structure, and reduces the transfer of vibration and heat from the fan assembly 9 to the air path, preventing the airflow temperature from rising and causing user discomfort. In addition, the housing 1 can also be designed as a slender structure along the first direction, making it convenient for users to hold and carry with one hand, thus facilitating user use.

[0085] Furthermore, because the housing 1 is an elongated structure in the first direction, with the air inlet 23 located on the first end face 21 and the air outlet 42 located on the second end face 41, and the pipe connected to the air outlet 42 also located on the second end face 41, when the user grips the housing 1, the air inlet 23 and the air outlet 42 are on different planes from the user's hand. This avoids the hand obstructing the air inlet 23 and the air outlet 42, ensuring smooth air intake and exhaust. At the same time, the user's hand is less likely to interfere with the pipe connected to the air outlet 42, ensuring the stability of the connection between the pipe and the air outlet 42.

[0086] Preferably, such as Figure 3 As shown, along the first direction, the housing 1 is provided with an air inlet buffer zone 17, a fan installation area 18 and an air outlet buffer zone 19 in sequence. The air inlet 23 is located in the air inlet buffer zone 17 and the air outlet 42 is located in the air outlet buffer zone 19.

[0087] The interior of the housing 1 is divided into multiple areas along the first direction. After the airflow enters through the air inlet 23, it passes through the air inlet buffer zone 17, the fan installation area 18 and the air outlet buffer zone 19 in sequence and flows out through the air outlet 42. The airflow flows unidirectionally between the areas and does not flow back. This improves the air outlet efficiency and makes the air inlet and outlet air paths as far apart as possible, and prevents air path stacking. This avoids the superposition of air inlet noise and air outlet noise, improves the noise reduction effect, and optimizes the overall layout of the machine.

[0088] In a preferred embodiment, such as Figures 3 to 7 As shown, the air intake buffer zone 17 is provided with an air intake shell 5, which has an inlet 51 and an outlet 52. Inside the air intake shell 5, there is a flow guide rib 56. The flow guide rib 56 extends in a spiral shape in a plane perpendicular to the first direction and forms a spiral air intake duct 57. The airflow enters the inlet 51 after passing through the air intake port 23, and flows from the outlet 52 to the fan installation area 18 after passing through the air intake duct 57.

[0089] A spiral air intake duct 57 is formed within the air intake shell 5 by means of guide ribs 56. The inlet 51 is located in the inner ring of the air intake duct 57, and the outlet 52 is located in the outer ring. Airflow enters the air intake duct 57 through the inlet 51 and spirals outwards, eventually exiting through the outlet 52 and flowing towards the fan assembly 9. The spirally extending air intake duct 57 has a layered, encircling structure, effectively lengthening the air intake duct 57 within a limited space, making it more suitable for miniaturized respiratory therapy equipment. Furthermore, the spiral air intake duct 57 allows for smoother and gentler turning, eliminating sharp corners and resulting in smoother and gentler airflow transitions. This also reduces the noise generated by airflow collisions, as the contact between the airflow and the inner wall of the air intake duct 57 is gentler. Simultaneously, the rotating airflow effectively avoids turbulence, resulting in higher airflow efficiency. Furthermore, at least a portion of the air intake duct 57 overlaps in the radial direction, which allows the sound waves of noise to be reflected within the air intake duct 57 and thus cancel each other out, making it more difficult for the sound waves to propagate and further improving the noise reduction effect.

[0090] Specifically, such as Figure 6 , Figure 7As shown, inlet 51 and outlet 52 are spaced apart at both ends of the air intake shell 5 in the first direction, while the air intake duct 57 extends in a plane perpendicular to the first direction. On the one hand, this causes the airflow to turn 90 degrees again when entering the air intake duct 57 from inlet 51 and when exiting the air intake duct 57 through outlet 52, further lengthening the airflow path and reducing the kinetic energy of the airflow through the turn, thereby improving the noise reduction effect. On the other hand, the extension of the air intake duct 57 does not occupy the space in the axial direction of inlet 51 and outlet 52. This arrangement further helps to reduce the overall volume of the air intake assembly, realize module miniaturization, and facilitate the docking and connection of inlet 51 and outlet 52 with other components of the respiratory therapy device, making it easier to install the air intake shell 5 into the respiratory therapy device.

[0091] Furthermore, such as Figure 4 , Figure 5 As shown, the air intake shell 5 is also provided with a buffer 53. There are two buffers 53, which are spaced apart inside the air intake shell 5 along the first direction. The air intake duct 57 is located between the two buffers 53.

[0092] The buffer 53 and the guide rib 56 together form the air inlet duct 57. When the airflow collides with the buffer 53, the buffer 53 can absorb some of the kinetic energy of the airflow, thereby reducing the airflow velocity and the collision noise between the airflow and the buffer 53. On the other hand, the buffer 53 can also absorb some sound waves, making it difficult for sound waves to penetrate to the outside of the air inlet shell 5.

[0093] Preferably, the buffer 53 is a structure made of a flexible material, such as sound-absorbing cotton. It can abut against both ends of the guide rib 56 along the first direction, or the buffer 53 can be designed in a spiral shape so that it can cooperate with the guide rib 56 to be inserted into the air inlet duct 57, and there is a gap between the two buffers 53 to form the air inlet duct 57.

[0094] In a preferred embodiment, such as Figure 6 , Figure 7 As shown, a flow divider 58 is also provided inside the air intake housing 5. The flow divider 58 is located inside the air intake duct 57. The flow divider 58 has a flow divider rib 582 that extends spirally from the inlet 51 to the outlet 52 to divide the air intake duct 57 into a first spiral section 571 and a second spiral section 572 in parallel.

[0095] The flow divider 582 divides the air inlet duct 57 into two parallel spiral sections, so that after the airflow enters the air inlet duct 57, it is divided into two streams by the flow divider 582. One stream spirals in the first spiral section 571, and the other stream spirals in the second spiral section 572. Thus, while ensuring that the total flow rate remains unchanged, the flow rate of each stream is reduced, thereby reducing the whistling sound generated by the large flow of air. In addition, the airflow in the first spiral section 571 and the second spiral section 572 is mixed before flowing out of the outlet 52. During the mixing, the sound waves cancel each other out, thereby further improving the noise reduction effect.

[0096] like Figure 6 , Figure 7 As shown, the two spiral segments have the same spiral direction, with one spiral segment located on the outer ring of the other spiral segment.

[0097] Specifically, the first spiral section 571 and the second spiral section 572 are connected at the outlet 52 so that the two airflows merge at the outlet 52 and flow out together through the outlet 52.

[0098] Furthermore, such as Figure 6 , Figure 7 As shown, the diverter 58 also includes a guide section 581, which is provided corresponding to the inlet 51, and the guide section 581 has a guide slope 5811 on the side facing the inlet 51.

[0099] like Figure 6 , Figure 7 As shown, the axis of inlet 51 is perpendicular to the extended plane of air intake duct 57, so that the airflow needs to make a turn of about 90° when entering air intake duct 57 from inlet 51. Guided by the guide slope 5811, the turn of the airflow is smoother and there is no sharp corner between inlet 51 and air intake duct 57. This makes the airflow turn more gentle and gradual, thereby avoiding the formation of turbulence and reducing the noise generated when the airflow turns at high speed.

[0100] Of course, in other embodiments, the guide section 581 can also be configured as an arc surface or other irregular curved surface structure, as long as it can guide the airflow flowing along the axis of the inlet 51 to flow along the extension direction of the air inlet duct 57, and there is no limitation here.

[0101] Specifically, such as Figure 6 As shown, the flow divider 582 extends into the inlet 51 to be positioned and matched with the edge of the inlet 51, and divides the inlet 51 into a first airflow inlet 511 and a second airflow inlet 512. The first airflow inlet 511 is connected to the first spiral section 571, and the second airflow inlet 512 is connected to the second spiral section 572.

[0102] At least a portion of the diverting rib 582 extends into the inlet 51, enabling the diverting rib 582 to sort and divert the airflow passing through the inlet 51. This causes the airflow to be divided into two streams by the diverting rib 582 when it passes through the inlet 51, and they enter the two spiral sections respectively, making the airflow in the two spiral sections more uniform.

[0103] Meanwhile, the diversion rib 582 can also cooperate with the edge of the inlet 51 to form the installation positioning of the diversion component 58, reducing the installation difficulty of the diversion component 58.

[0104] Preferably, such as Figure 7 , Figure 8 As shown, the flow divider 582 has abutting planes at both ends along the first direction, so that the flow divider 582 can stably and reliably abut against the buffer 53 or other components, so that the position of the flow divider 582 is stable and will not be deviated under the push of the airflow.

[0105] Furthermore, such as Figure 7 , Figure 8 , Figure 9 As shown, the two ends of the diverter 58 are provided with fixing structures 583, and the air passage cavity is also provided with a mating rib 59. The mating rib 59 and the guide rib 56 are respectively provided with mating structures 561. The fixing structures 583 and the mating structures 561 are mated to fix one end of the diverter 58 to the guide rib 56 and the other end to the mating rib 59.

[0106] like Figure 8 , Figure 9 As shown, the guide rib 56 extends spirally from the inlet 51 to form the air intake duct 57, and the matching rib 59 is located at the outlet 52, working together with the diverter 58 to divide the air intake duct 57 into a first spiral section 571 and a second spiral section 572. Specifically, as... Figure 8 , Figure 9 As shown, the guide rib 56 is provided with a fixing buckle at the inlet 51, and one end of the diverting rib 582 is provided with a buckle groove or a matching buckle that mates with the fixing buckle, so that the two are locked together. One of the matching rib 59 and the diverting component 58 is provided with an insertion protrusion, and the other with an insertion groove, so that the two are locked together. This fixes both ends of the diverting component 58. Simultaneously, in the first direction, a buffer 53 is also provided on one side of the diverting component 58. The buffer 53 compresses the diverting component 58, firmly pressing it inside the intake housing 5.

[0107] Preferably, such as Figure 6 , Figure 7 As shown, a noise reduction component 531 is provided in the first spiral section 571 and / or the second spiral section 572. The noise reduction component 531 cooperates with the flow divider 582 to form at least part of the first spiral section 571 and / or the second spiral section 572.

[0108] The noise-reducing component 531, in conjunction with the flow-diverting rib 582, forms at least a portion of the first spiral section 571 and / or the second spiral section 572. This is achieved by filling the air inlet duct 57 with the noise-reducing component 531, thus creating at least a portion of the spiral section. This prevents the width and extension direction of the first spiral section 571 and the second spiral section 572 from being excessively restricted by the shape of the air inlet shell 5. By partially filling the air inlet duct with the noise-reducing component 531, two spiral sections can be constructed, making the widths of the first spiral section 571 and the second spiral section 572 more similar and resulting in a more uniform airflow within both spiral sections. Simultaneously, the noise-reducing component 531, being a flexible structure, possesses a certain sound-absorbing effect and can also absorb some noise, thereby improving the noise reduction effect. Furthermore, because the noise-reducing component 531 is easy to process, it is also convenient to process curved surfaces, inclined surfaces, and other structures on its surface, improving the guiding effect of airflow within the first spiral section 571 and the second spiral section 572.

[0109] In one specific embodiment, such as Figure 6 As shown, the second spiral section 572 is located outside the first spiral section 571, and the noise reduction component 531 is disposed inside the second spiral section 572. The side of the noise reduction component 531 facing the second spiral section 572 is provided with a wave-shaped curved surface for contact with the airflow.

[0110] It should be noted that the noise reduction component 531 can be set along the extension direction of the first spiral section 571 and / or the second spiral section 572, or it can be set in a local area of ​​the first spiral section 571 and / or the second spiral section 572 as needed and according to the internal structure of the air intake shell 5. No limitation is made here.

[0111] Preferably, the noise reduction component 531 is made of a flexible material, such as sound-absorbing cotton.

[0112] Furthermore, such as Figure 5 As shown, the noise reduction component 531 is also provided with two buffer components 53. The air inlet duct 57 is located between the two buffer components 53. The noise reduction component 531 is integrally formed with one of the buffer components 53 and abuts against the other buffer component 53.

[0113] Specifically, the intake shell 5 has an open structure at the end face where the outlet 52 is located. One buffer 53 is located at the end face where the inlet 51 is located and is inside the intake shell 5. This buffer 53 is integrally formed with the noise reduction component 531. Another buffer 53 is located at the open portion to cover the open portion. This buffer 53 has a notch to form the outlet 52. After the air intake assembly is assembled, the outer buffer 53 can abut against the noise reduction component 531 to compress and limit the buffer 53 inside the intake shell 5, preventing the buffer 53 from being pushed up by the airflow.

[0114] Of course, a cover can also be provided so that the cover can close the opening, and both buffers 53 are housed in the air intake shell 5. Under the fastening force of the cover and the air intake shell 5, an inward squeezing force is formed on the buffers 53, which in turn squeezes the noise reduction component 531.

[0115] As a preferred embodiment, such as Figure 4 , Figure 5 As shown, the air intake shell 5 includes a first body 54 and a second body 55. The thickness of the first body 54 is greater than the thickness of the second body 55. The inlet 51 is located in the first body 54, the outlet 52 is located in the second body 55, and the air intake duct 57 extends from the first body 54 to the second body 55. The volume of the air intake duct 57 in the first body 54 is greater than the volume in the second body 55.

[0116] Specifically, the first body 54 and the second body 55 are located on the extension surface of the air intake duct 57. Most of the air intake duct 57 is located within the first body 54, and the first body 54 is relatively thick. This results in a relatively large thickness in the area where the inlet 51 is located and in most of the area of ​​the air intake duct 57, which can effectively reduce the air intake resistance and the air resistance when the airflow spirals within the air intake duct 57, making the air intake smoother. On the other hand, the second body 55, where the outlet 52 and a small portion of the air intake duct 57 near the outlet 52 are located, is relatively thin. This causes the airflow within the air intake duct 57 to converge near the outlet 52 due to the reduced channel thickness, and then quickly flow out through the outlet 52 to the fan assembly 9, improving the air intake efficiency of the fan assembly 9 and preventing airflow from stagnating within the air intake duct 57.

[0117] Preferably, such as Figure 4 As shown, in the direction from the air inlet duct 57 to the outlet 52, the thickness of the second body 55 gradually decreases, so that the thickness of the air inlet duct 57 inside it gradually decreases towards the outlet 52, so that the airflow gradually converges as it flows towards the outlet 52.

[0118] On the other hand, because the first body 54 is relatively thick, it also provides installation space for the buffer 53. This allows the thickness of the portion of the air inlet duct 57 inside the first body 54 and the portion inside the second body 55 to be closer after the buffer 53 is installed inside the first body 54. This makes the thickness of the air inlet duct 57 more uniform in its extension direction, preventing abrupt changes and avoiding turbulence caused by sudden changes in airflow resistance. Specifically, the buffer 53 is provided inside the first body 54, and the difference in thickness between the first body 54 and the second body 55 is the same as the thickness of the buffer 53.

[0119] Preferably, such as Figure 1 , Figure 2As shown, a first end cap 2 is provided at the first end face 21, and a second end cap 4 is provided at the second end face 41. Further, the first end cap 2 is fixed to one end of the housing 1 along the first direction, with the first end face 21 located on the first end cap 2. The second end cap 4 is fixed to the other end of the housing 1 along the first direction, with the second end face 41 located on the second end cap 4.

[0120] Furthermore, such as Figure 1 , Figure 2 As shown, the housing 1 includes a first outer shell 11 and a second outer shell 12. The first outer shell 11 and the second outer shell 12 are inserted into each other in a direction perpendicular to the first direction. The first end cap 2 and the second end cap 4 are respectively positioned and fitted with the first outer shell 11 and the second outer shell 12, and are fixedly connected to the housing 1 and / or one or more components inside the housing 1, so that the first end cap 2 and the second end cap 4 fix the first outer shell 11 and the second outer shell 12; or the first end cap 2 and the second end cap 4 are respectively connected to the first outer shell 11 and the second outer shell 12, so that the first end cap 2 and the second end cap 4 fix the first outer shell 11 and the second outer shell 12.

[0121] The first outer shell 11 and the second outer shell 12 are inserted and positioned along the first direction. There is no direct connection between them; simple fixation is achieved solely through insertion. Then, the first end cap 2 and the second end cap 4 are fixed to both ends of the housing 1. While closing the opening, the first and second outer shells 11 and 12 are also secured by the first and second end caps 2 and 4, thus simultaneously fixing multiple components of the housing 1. The first and second end caps 2 and 4 can be directly fixed to the first and second outer shells 11 and 12, or fixed to components inside the housing 1, and engage with the first and second outer shells 11 and 12 to maintain the connection stability of the first and second outer shells 11 and 12. For the first and second outer shells 11 and 12, there is no need for multiple screws or other fasteners for fixation, saving both cost and assembly time. Furthermore, there is no need to set complex snap-fit ​​structures on the first and second outer shells 11 and 12, reducing processing difficulty. As for the first end cap 2 and the second end cap 4, by simply fastening these components to the housing 1 or its internal components, the synchronous connection of each component of the housing 1 can be achieved simultaneously. This eliminates the need to connect each component one by one, which not only reduces the assembly difficulty but also greatly improves the assembly efficiency.

[0122] As a preferred embodiment of this application, such as Figure 14 , Figure 16 , Figure 17 , Figure 20 As shown, the first outer shell 11 and the second outer shell 12 are provided with a plug-in structure at the edge of the opening, and the first end cover 2 and the second end cover 4 are provided with a mating structure. One of the plug-in structure and the mating structure is a plug-in protrusion 29, and the other is a plug-in groove 111 that is plugged into and mated with the plug-in protrusion 29.

[0123] After the first end cap 2 and the second end cap 4 are installed, the insertion protrusion 29 and the insertion groove 111 engage, so that the groove wall of the insertion groove 111 forms a limiting stop on the insertion protrusion 29, allowing the first end cap 2 and the second end cap 4 to tightly clamp the first outer shell 11 and the second outer shell 12 in a direction perpendicular to the first direction, preventing the first outer shell 11 and the second outer shell 12 from detaching from each other. At the same time, the engagement of the insertion groove 111 and the insertion protrusion 29 also provides a positioning function for the installation of the first end cap 2 and the second end cap 4, allowing the assembly personnel to easily install the first end cap 2 and the second end cap 4 into place, improving the positional stability of the first end cap 2 and the second end cap 4. In this way, the first outer shell 11, the second outer shell 12, and the first end cap 2 and the second end cap 4 can mutually limit and position each other, improving the tightness of the fit and thus improving the overall connection stability.

[0124] Specifically, in one embodiment, the insertion structure is an insertion groove 111, and the mating structure 561 is an insertion protrusion 29. Further, as... Figure 16 , Figure 20 As shown, in one example, the insertion groove 111 is a U-shaped groove. After the insertion protrusion 29 extends into the insertion groove 111, both its inner and outer sides are limited by the stop of the groove wall of the insertion groove 111. In another example, the insertion groove 111 can also be an L-shaped groove, that is, only on the inner side of the insertion protrusion 29 (the side closer to the inside of the housing 1), so that the insertion protrusion 29 can form a restriction on the movement of the first housing 11 and the second housing 12 in a direction perpendicular to the first direction with the stop of the groove wall on that side, so as to prevent the first housing 11 and the second housing 12 from becoming loose.

[0125] Preferably, at least one side of the groove wall of the insertion groove 111 can abut against the end faces of the first end cap 2 and the second end cap 4. Specifically, when the inner side (facing the interior of the housing 1) of the first end cap 2 and the second end cap 4 is a planar structure, the groove wall of the insertion groove 111 abuts against the top surface structure. When the inner side of the first end cap 2 and the second end cap 4 is not planar, one or more bosses can be provided on the inner side of the first end cap 2 and the second end cap 4, so that the platform of each boss forms a plane, and the groove wall of the insertion groove 111 abuts against the plane.

[0126] Preferably, a sealing element is also provided between the insertion protrusion 29 and the insertion groove 111.

[0127] Specifically, such as Figure 14 , Figure 15 , Figure 16 As shown, a first sealing ring 28 is provided between the first end cap 2 and the housing 1, so that the first sealing ring 28 is wrapped around the outside of the positioning protrusion or placed on the inner wall of the insertion groove 111, so that after the two are inserted, the first sealing ring 28 is squeezed to seal the gap between the first end cap 2 and the housing 1.

[0128] In another embodiment, such as Figure 14 As shown, the first end cover 2 is provided with an installation groove, and a first sealing ring 28 is provided in the installation groove. A portion of the first sealing ring 28 protrudes from the first end cover 2 to form an insertion rib 29. Thus, the first sealing ring 28 is inserted into the insertion groove 111 to achieve positioning and sealing at the same time.

[0129] like Figure 15 As shown, the first sealing ring 28 is also provided with a positioning lip 281, which is used to cooperate with the groove of the first end cap 2 for positioning.

[0130] Specifically, such as Figure 16 , Figure 20 As shown, both the first outer shell 11 and the second outer shell 12 are provided with arc-shaped insertion grooves 111. When the two are spliced ​​together, they together form an annular insertion groove 111. The edges of the first end cover 2 and the second end cover 4 are provided with annular insertion ribs 29 along the circumferential direction to form insertion positioning in the circumferential direction.

[0131] like Figure 1 As shown, the first end face 21 is also provided with a power interface 22. The power interface 22 can be configured to connect a power cord to charge the battery of the respiratory therapy device, or it can be configured to connect to a power source via a power cord. In other words, the respiratory therapy device can be a plug-in structure, i.e., used by plugging in electricity, or it can be a rechargeable structure, so that it can store a certain amount of power and be used in the event of a power outage, thus making it convenient to carry and use when going out.

[0132] Preferably, such as Figure 27 , Figure 28 As shown, the first outer shell 11 has a first mating surface 114 that mates with the second outer shell 12, and the second outer shell 12 has a second mating surface 124 that mates with the first outer shell 11. One of the first mating surface 114 and the second mating surface 124 is provided with a positioning groove 115, and the other of the two is provided with a positioning rib 125 that is inserted into the positioning groove 115.

[0133] After the positioning rib 125 and the positioning groove 115 are inserted, the first mating surface 114 and the second mating surface 124 abut against each other, making the first outer shell 11 and the second outer shell 12 in surface contact, thereby improving the contact stability between the two and reducing the possibility of relative shaking. In addition, after the positioning rib 125 and the positioning groove 115 are inserted, the outer surfaces of the first outer shell 11 and the second outer shell 12 are basically flush or together form an arc surface, making the outer surface of the shell 1 smoother and improving the grip.

[0134] Specifically, such as Figure 28 As shown, a sealing strip 66 is also provided between the positioning rib 125 and the positioning groove 115.

[0135] Furthermore, such as Figure 11 , Figure 12 As shown, the respiratory therapy device also includes an air intake grille 3, and the first end cover 2 is provided with an installation groove 24 for installing the air intake grille 3, with the air inlet 23 located in the installation groove 24.

[0136] The air intake grille 3, located at the air intake 23, disperses and organizes the converging airflow into multiple streams, reducing noise as the airflow enters the air intake 23. Simultaneously, the air intake grille 3 also blocks large particles of impurities from the outside of the air intake 23, improving the cleanliness of the respiratory therapy device's interior. Since the air intake grille 3 is installed inside the mounting groove 24, its outer surface does not excessively protrude from the first end cover 2, resulting in a more unified and smooth overall appearance for the first end cover 2 and the housing 1, improving structural compactness and contributing to miniaturization and aesthetic design. Preferably, after the air intake grille 3 is installed in the mounting groove 24, its outer surface is flush with the outer surface of the first end cover 2.

[0137] Preferably, the air intake grille 3 is movable relative to the first end cover 2 to cover the air intake 23, or to avoid the air intake 23. Specifically, in one embodiment, the air intake grille 3 is detachably mounted to the first end cover 2, allowing the user to remove the air intake grille 3 from the first end cover 2 for cleaning. In this case, the air intake 23 is opened, and when the user inserts the air intake grille 3 into the mounting recess 24, it obstructs the air intake 23. The air intake grille 3 can be detachably connected to the first end cover 2 via an interference fit or snap-fit ​​connection. In another embodiment, such as... Figure 13 As shown, one end of the air intake grille 3 is rotatably connected to the first end cover 2 so that the air intake grille 3 can be flipped relative to the first end cover 2 to block the air intake 23 or avoid the air intake 23.

[0138] Furthermore, such as Figure 11 , Figure 12 As shown, a portion of the outer periphery of the mounting groove 24 is provided with a hand slot 25, allowing the user to insert their hand through the hand slot 25 into the mounting groove 24 to remove or open the air intake grille 3.

[0139] like Figure 10 , Figure 12 , Figure 13 As shown, a filter element 31 is also provided between the air intake grille 3 and the air intake port 23. The filter element 31 can be filter cotton, sound-absorbing cotton, etc. A limiting rib 241 is provided in the mounting groove 24. The limiting rib 241 abuts against the filter element 31 to make an air intake buffer gap 962 between the filter element 31 and the air intake port 23.

[0140] Furthermore, such as Figure 10 , Figure 12 , Figure 13 , Figure 14 , Figure 16 As shown, the first end cap 2 is provided with a first fixing hole 26, the air inlet shell 5 is provided with a first mating hole 514, and the respiratory therapy device also includes a first fastener, which passes through the first fixing hole 26 and the first mating hole 514 to fix the first end cap 2 and the air inlet shell 5 in a fixed connection.

[0141] Preferably, the air intake shell 5 can be fixed inside the shell 1 by means of screw connection, snap-fit ​​connection or other methods.

[0142] Preferably, such as Figure 10 , Figure 14 , Figure 16 As shown, the air intake shell 5 is provided with a battery mounting groove 513 on the side facing the first end cover 2. The first end cover 2 is provided with a limiting rib 27, which can abut against the battery to restrict the battery within the battery mounting groove 513.

[0143] Specifically, the battery mounting slot 513 has a slot facing the first end cover 2 to increase the area of ​​the slot so that the battery can be smoothly inserted. When the first end cover 2 is assembled with the housing 1, the limiting rib 27 abuts against the battery in the battery mounting slot 513, restricting the battery in the battery mounting slot 513 and preventing it from falling out.

[0144] The battery mounting slot 513 can be directly formed in the air intake shell 5, or the battery mounting slot 513 can be set on the mounting bracket on the side of the air intake shell 5 facing the first end cover 2, and the mounting bracket can be fixed to the air intake shell 5.

[0145] As a preferred embodiment of this application, such as Figure 3 , Figure 21 , Figure 24 , Figure 25 As shown, the fan installation area 18 has an inner housing 6. Along a direction perpendicular to the first direction, the inner housing 6 forms an air guide area and an assembly area. The fan assembly 9 is installed in the assembly area. The air guide area and the air inlet 91 are connected to deliver gas to the fan assembly 9.

[0146] Specifically, the fan assembly 9 is located inside the mounting inner shell 6, and the side of the air inlet shell 5 facing the mounting inner shell 6 is an open structure so that the air inlet shell 5 and the mounting inner shell 6 cooperate to form an air inlet duct 57.

[0147] Specifically, such as Figure 3 , Figure 21 As shown, the air inlet shell 5 and the mounting inner shell 6 are arranged along the first direction (the length direction of the respiratory therapy device), with the air inlet shell 5 closer to the first end cover 2. The opening of the air inlet shell 5 abuts against the mounting inner shell 6, so that the two cooperate to form an air intake duct 57. Specifically, as shown... Figure 4 , Figure 5As shown, a buffer element 53 is provided at the opening, which can be sound-absorbing cotton or the like. The buffer element 53 is clamped between the air intake shell 5 and the inner shell 6, thus closing the opening.

[0148] Preferably, at least a portion of the mounting housing 6 is made of a flexible material to reduce vibrations transmitted from the fan assembly 9 to the mounting housing 6. For example, in one embodiment, such as Figure 23 As shown, the inner housing 6 includes a base 62 and an upper cover 63. The base 62 is fixed to the housing 1, and the upper cover 63 can cover the base 62. The base 62 is made of a flexible material, such as silicone, and the upper cover 63 is made of a rigid material, such as plastic.

[0149] Specifically, such as Figure 23 As shown, the housing 1 includes a first outer shell 11 and a second outer shell 12 located below the first outer shell 11. The base 62 is fixed to the second outer shell 12. The second outer shell 12 is provided with a plurality of upwardly protruding positioning parts 123, and the base 62 is provided with a corresponding positioning port 621. The two are inserted and matched to form an installation positioning for the base 62.

[0150] like Figure 23 As shown, the second housing 12 is also provided with an upwardly protruding first fixing post 121 and a second fixing post 122. The first fixing post 121 is used to be fastened to the fan assembly 9, and the second fixing post 122 is used to be fastened to the upper cover 63 so that the upper cover 63 covers the base 62. At least a portion of the first fixing post 121 and / or the second fixing post 122 passes through the base 62.

[0151] Furthermore, such as Figure 3 As shown, the thickness of the air guide zone is less than the thickness of the assembly zone, so that an installation space for mounting the circuit board is formed between the mounting inner shell 6 and the shell 1 corresponding to the air guide zone.

[0152] Specifically, such as Figure 3 As shown, the portable respiratory therapy device also includes a circuit board, which includes a first board 181 and a second board 184. At least a portion of the first board 181 is located within the mounting space, and the second board 184 is located in the exhaust buffer 19.

[0153] The first plate 181 is located within the space between the inner shell 6 and the outer shell 1, making the overall structural layout more compact and rational. Specifically, as shown... Figure 3As shown, the first plate 181 extends along a first direction from the air inlet buffer zone 17 through the fan mounting area 18 to the air outlet buffer zone 19. The second plate 184 is located at one end of the first plate 181 and is perpendicular to the first plate 181. The first plate 181 and / or the second plate 184 are provided with a plug-in structure so that the two can be fixed together by plugging. Furthermore, the first plate 181 and / or the second plate 184 are also provided with a plurality of positioning notches 182 on their edges, and the mounting inner shell 6 and / or the outer shell 1 are provided with positioning protrusions 61 corresponding to the positioning notches 182, so that the two can be plugged in and positioned, making the position of the circuit board more stable.

[0154] In a preferred embodiment, such as Figure 24 , Figure 26 , Figure 29 As shown, the axis of the fan assembly 9 is perpendicular to the first direction, the air inlet 91 is located at the top of the fan assembly 9, the air guiding area includes an extension section 652 and a guide section 653 connected to the air inlet 91, there is a bend between the extension section 652 and the guide section 653, and a sound-absorbing component 651 is provided at the bend.

[0155] The extension section 652 coincides with the axis of the outlet 52 and extends along the first direction, allowing airflow to flow smoothly through the outlet 52 into the extension section 652. Since the suction force on the airflow is stronger the closer it is to the fan assembly 9, the smoothly extended air path can reduce the probability of airflow colliding with the inner wall of the air intake channel while ensuring smooth and efficient air intake, thus avoiding noise generation and flow obstruction. The angle between the extension section 652 and the guide section 653 not only guides the airflow to change direction again, extending the air path and reducing noise, but also helps to arrange the extension section 652 and the guide section 653 on different sides of the fan assembly 9. This allows the airflow channel 65 to completely surround or enclose multiple sides of the fan assembly 9, making the layout of the airflow channel 65 and the fan assembly 9 more compact and reasonable, saving internal space in the respiratory therapy equipment and contributing to the miniaturization of the respiratory therapy equipment.

[0156] Specifically, such as Figure 29 As shown, the inner housing 6 includes a base 62 and a top cover 63. The top cover 63 has an air inlet duct 631, which forms an extension 652 of the airflow channel 65. The top cover 63 and the base 62 cooperate to form a guide section 653. Figure 29 As shown, the fan assembly 9 has a vertical axis, the air inlet 91 is located at the top, the extension section 652 is located below the fan assembly 9 or on the horizontal side, and the guide section 653 extends vertically to guide the airflow upward to the top of the fan assembly 9 and into the air inlet 91.

[0157] Specifically, a noise reduction component 531 is provided at the corner between the guide section 653 and the extension section 652. The noise reduction component 531 is preferably a flexible component such as sound-absorbing cotton, so that the airflow is smoother when turning.

[0158] Preferably, such as Figure 29 As shown, the extension section 652 is provided with a first grille 654 for sorting the airflow coming out of the outlet 52.

[0159] Preferably, the respiratory therapy device also includes a flow detection element connected to the guide section 653 to detect the flow rate of the airflow within the guide section 653. Because the airflow within the guide section 653 is combed and flows more stably in a laminar flow manner, the flow rate detection is more accurate. Figure 21 As shown, the inner housing 6 is provided with a mounting base 183 for installing the flow detection element.

[0160] Furthermore, such as Figure 24 , Figure 25 , Figure 35 As shown, the fan assembly 9 includes a fan 93 and a fan sleeve 94 covering the outside of the fan 93. The fan sleeve 94 is made of flexible material and covers the outer periphery and top of the fan 93, with an opening corresponding to the air inlet 91 of the fan 93. After the fan 93 is inserted into the fan sleeve 94, it is fixedly connected to the housing 1 through the fan sleeve 94. In addition, there is a shock-absorbing pad 92 between the bottom of the fan 93 and the base 62 on which the inner housing 6 is installed. At the same time, there is also a shock-absorbing pad 92 between the top of the fan sleeve 94 and the upper cover 63 on which the inner housing 6 is installed. The side of the shock-absorbing pad 92 facing the guide section 653 has a notch to form a transverse airflow channel for airflow to the air inlet 91.

[0161] Furthermore, such as Figure 25 As shown, the fan assembly 9 includes an impeller portion 95 and a drive portion 96. The housing 1 of the drive portion 96 is supported by the mounting inner housing 6, and a buffer gap 962 exists between the drive shaft 961 of the drive portion 96 and the mounting inner housing 6.

[0162] The drive unit 96 is a motor. When the fan assembly 9 is working, the drive shaft 961 of the drive unit 96 drives the impeller 95 to rotate. Therefore, the vibration generated by the drive shaft 961 is relatively strong, and the heat generated is also higher and more concentrated. By setting a buffer gap 962 between the drive shaft 961 and the mounting inner housing 6, the drive shaft 961 is in a "suspended" state relative to the mounting inner housing 6. On the one hand, the heat generated by the drive shaft 961 can be dissipated through the buffer gap 962, avoiding direct heat transfer to the mounting inner housing 6 through contact. On the other hand, it can also reduce the vibration transmitted from the drive shaft 961 to the mounting inner housing 6, preventing vibration of the mounting inner housing 6 or even the housing 1, thus improving the user experience.

[0163] Preferably, such as Figure 22 , Figure 27 , Figure 28 As shown, one of the inner shell 6 and the first outer shell 11 is provided with a fixing rib 113, and the other is provided with a fixing groove 64 that engages with the fixing rib 113, so as to fix the inner shell 6 and the first outer shell 11.

[0164] The first outer shell 11 and the mounting inner shell 6 can be fixed together by the fixing rib 113 and the fixing groove 64. This ensures that the first outer shell 11 is not only limited and fixed by the end caps, but also fixed to the mounting inner shell 6, further improving the installation stability of the first outer shell 11 and reducing the risk of shaking or loosening. It also further improves the assembly correlation between the various components of the respiratory therapy device, reduces relative shaking between components, and improves the overall assembly quality of the respiratory therapy device. Furthermore, since the first end cap 2 and the second end cap 4 clamp and limit the ends of the first outer shell 11 and the second outer shell 12, the middle part of the first outer shell 11 and the second outer shell 12 may deform or even develop gaps due to stress. Therefore, the fixing rib 113 and the fixing groove 64 limit the middle part of the first outer shell 11 to prevent gaps from appearing.

[0165] Specifically, such as Figure 22 , Figure 27 As shown, the second outer shell 12 is located below the first outer shell 11. After the air intake shell 5 is installed onto the second outer shell 12, the first outer shell 11 is covered onto the second outer shell 12. The inner shell 6 is provided with multiple fixing grooves 64, and each fixing groove 64 is spaced apart along the first direction. The first outer shell 11 is provided with multiple fixing ribs 113, so that the fixing ribs 113 are engaged with the fixing grooves 64 one by one. Preferably, fixing grooves 64 are provided on both sides of the inner shell 6, and the cross-section of the first outer shell 11 is an arc-shaped structure. Fixing ribs 113 are provided at both ends of the arc to form a uniform engagement force at both ends of the first outer shell 11, preventing the first outer shell 11 from warping locally.

[0166] Furthermore, the inner housing 6 includes a base 62 and a top cover 63, with a fixing groove 64 disposed on the top cover 63.

[0167] As a preferred embodiment of this application, such as Figure 3 , Figure 24 , Figure 32 As shown, the fan assembly 9 is located in the fan installation area 18, and the air outlet is connected to the air outlet pipe 15. The air outlet buffer zone 19 is provided with a connecting pipe 16 that connects to the air outlet pipe 15, so that the air outlet pipe 15 and the connecting pipe 16 form an air outlet duct 152, and the air outlet pipe 15 forms an arc-shaped bend flow channel 153.

[0168] Specifically, such as Figure 21As shown, the inner housing 6 is provided with a mating port, and the vent pipe 15 mates with the edge of the mating port so as to extend from the inside of the inner housing 6 to the outside.

[0169] Preferably, such as Figure 24 As shown, the air inlet 91 is located at the top of the fan assembly 9, and the air outlet is located on the side of the fan assembly 9.

[0170] By incorporating a bent flow channel 153 within the outlet pipe 15, the orientation of the end of the outlet pipe 15 can be adjusted to align with the outlet 42. Simultaneously, the axes of the outlet 42 and the inlet 23 coincide in the first direction, resulting in a more symmetrical and aesthetically pleasing overall appearance of the respiratory therapy device. Furthermore, the bent flow channel 153 misaligns the axes of the inlet 51 and outlet 52 of the outlet pipe 15. The curved extension of the outlet pipe 15 makes the airflow path more tortuous internally, and the noise transmission path also more tortuous. This facilitates noise collision within the outlet pipe 15, reducing sound wave intensity and preventing noise from reaching the user end via the outlet pipe 15 and subsequent external piping.

[0171] Specifically, such as Figure 32 , Figure 33 , Figure 34 As shown, the exhaust pipe 15 has an S-shaped structure. Of course, it can be an inclined pipe structure with the inlet 51 and the outlet 52 misaligned, or other structures, which are not limited here.

[0172] Preferably, such as Figure 21 , Figure 32 , Figure 33 , Figure 34 As shown, an air outlet grille 151 is provided inside the air outlet duct 152 to divide the air outlet duct 152 into multiple air outlet openings, and the air outlet grille 151 is at least partially located inside the air outlet pipe 15. The air outlet grille 151 is used to guide the airflow flowing out of the air outlet. Preferably, the respiratory therapy device also includes a pressure detection element 191, which is connected to the air outlet duct 152 to detect the pressure of the airflow within the air outlet duct 152. Preferably, as... Figure 32 , Figure 33 As shown, the vent pipe 15 is provided with a mounting position for installing the pressure detection element 191.

[0173] The vent grille 151 can be disposed inside the vent pipe 15, or it can be partially located inside the vent pipe 15 and partially located inside the connecting pipe 16. Preferably, as shown below... Figure 33 , Figure 34 As shown, the air vent grille 151 is located at the bend in the flow channel 153, and its shape is adapted to the shape of the bend in the flow channel 153 so as to provide support for the bend.

[0174] As a preferred embodiment, such as Figure 24 , Figure 32 As shown, a connecting bracket 8 is also provided between the air outlet pipe 15 and the connecting pipe 16. The air outlet pipe 15 and the connecting pipe 16 are located on both sides of the connecting bracket 8 and are directly connected to the connecting pipe 16 so as to be connected through the connecting bracket 8.

[0175] Preferably, both the connecting pipe 16 and the vent pipe 15 are flexible pipes, while the connecting bracket 8 is a rigid structure. The rigid connecting bracket 8 connects the two flexible pipes, making their connection more stable and ensuring a tight seal. Furthermore, since the connecting pipe 16 and the vent pipe 15 are flexible pipes, they can be inserted and fixed to the connecting bracket 8 via an interference fit. For example, they can be sleeved around the insertion section of the connecting bracket 8 or inserted into the insertion section of the connecting bracket 8.

[0176] like Figure 24 , Figure 32 , Figure 34 As shown, the connecting bracket 8 is provided with fixing lugs 81 on the upper and lower sides respectively, and the first outer shell 11 and the second outer shell 12 are respectively provided with mating grooves. The fixing lugs 81 on the upper side are positioned in conjunction with the mating groove of the upper first outer shell 11, and the fixing lugs 81 on the lower side are positioned in conjunction with the mating groove of the lower second outer shell 12. This is to limit the air outlet duct 152 through the connecting bracket 8 and reduce the shaking of the connecting pipe 16 and the air outlet pipe 15.

[0177] In a preferred embodiment, such as Figure 2 As shown, the respiratory therapy device also includes a second end cover 4 located at the other end of the housing 1 along the first direction, a second end face 41 located on the second end cover 4, and an air outlet 42 communicating with the air outlet of the device.

[0178] like Figure 2 As shown, an insertion groove is provided on the outer periphery of the air outlet 42, the air outlet 42 is located in the insertion groove, the groove wall of the insertion groove is provided with a guide slope 43, and the inner periphery of the air outlet 42 is provided with a snap-fit ​​structure 421 for snap-fit ​​and fixing with the pipeline.

[0179] The insertion groove and guide slope 43 provide positioning for connecting external pipelines. During use, the user can connect the pipeline, which includes a mask or other equipment, to the air outlet 42. The guide slope 43 guides the pipeline; even if the user doesn't align the pipeline directly with the air outlet 42, the guide slope 43 will gradually align it during the connection process. The snap-fit ​​structure 421 on the inner circumference of the air outlet 42 snaps into the pipeline. Compared to a simple insertion method, the snap-fit ​​fixation improves the stability of the connection and reduces the possibility of pipeline loosening and leakage. Furthermore, the snap-fit ​​design shortens the required connection distance between the air outlet 42 and the external pipeline.

[0180] Specifically, such as Figure 2 As shown, the connecting pipe 16 extends from the air outlet 42. After the outer pipe is locked and fixed to the edge of the air outlet 42 by the locking structure 421, it is connected to the connecting pipe 16.

[0181] Furthermore, the second end cap 4 is securely connected to the housing 1. Specifically, as shown... Figure 17 , Figure 20 As shown, the second end cap 4 is provided with at least two second fixing holes 46, the first outer shell 11 and the second outer shell 12 are respectively provided with second mating holes 112, and the respiratory therapy device also includes a second fastener, which passes through the second fixing holes 46 and the second mating holes 112 to fix the second end cap 4 to the first outer shell 11 and the second outer shell 12 respectively.

[0182] Specifically, there are two second fasteners. One fastener secures the second end cap 4 to the first housing 11 through a second fixing hole 46 and a second mating hole 112 of the first housing 11. The other fastener secures the second end cap 4 to the second housing 12 through a second fixing hole 46 and a second mating hole 112 of the second housing 12. This ensures that the second end cap 4 is simultaneously secured to both the first housing 11 and the second housing 12, making the assembly of the first housing 11 and the second housing 12 more stable.

[0183] like Figure 19 As shown, a shielding cover 47 is also provided on the outer side of the second end cover 4 (the side facing away from the inside of the housing 1). The shielding cover 47 can block the second fixing hole 46 to improve the overall appearance quality of the respiratory therapy device.

[0184] Preferably, such as Figure 17 , Figure 18 , Figure 20 As shown, a second sealing ring 44 is provided between the second end cap 4 and the housing 1. The second sealing ring 44 has a first sealing part 441 located between the two to seal the gap between the second end cap 4 and the housing 1.

[0185] Preferably, such as Figure 17 , Figure 18 , Figure 20 , Figure 24 , Figure 25 As shown, the second end cap 4 is also provided with a limiting part 45 for cooperating with the connecting bracket 8 for limiting, and the second sealing ring 44 is also provided with a second sealing part 442 located between the limiting part 45 and the bracket, so that the second sealing ring 44 can simultaneously play the role of sealing between the second end cap 4 and the housing 1 and between the second end cap 4 and the bracket. This multi-purpose design simplifies the structure of the respiratory therapy device and saves costs.

[0186] Specifically, such as Figure 18 As shown, the first sealing part 441 and the second sealing part 442 are connected as one unit by a connecting rib.

[0187] Preferably, such as Figure 24 As shown, the connecting bracket 8 is also provided with a plugging protrusion 82, and the outer wall of the limiting part 45 is provided with a plugging groove 451 so that the plugging protrusion 82 and the plugging groove 451 are plugged and positioned.

[0188] Preferably, such as Figure 1 , Figure 2 As shown, a decorative shell 13 is also provided on the outer side of the housing 1. The decorative shell 13 covers a part of the housing 1 to form a step between the decorative shell 13 and the housing 1, and the step forms a gripping area. The presence of the decorative shell 13 makes the outer surface of the housing 1 uneven, thereby increasing the friction when the user grips it, making the user hold it more firmly.

[0189] Specifically, such as Figure 1 , Figure 2 As shown, the housing 1 includes a first outer shell 11 and a second outer shell 12 located below the first outer shell 11. The second outer shell 12 is provided with a support base 14, and the first outer shell 11 is provided with a decorative shell 13. Specifically, the support base 14 and the decorative shell 13 are integrally formed and are both made of soft or leather material.

[0190] In a preferred embodiment, such as Figure 1 , Figure 2 , Figure 30 , Figure 31 As shown, the portable respiratory therapy device also includes a button assembly 7, which includes a button 71 and a sealing gasket 72. The button 71 is fixed to the sealing gasket 72, and the sealing gasket 72 is fixed to the housing 1. The housing 1 has a passage for the button 71 to pass through.

[0191] During assembly, the button 71 can be fixed to the sealing gasket 72 first, and then the sealing gasket 72 can be fixed to the housing 1. The sealing gasket 72 has a protrusion corresponding to the circuit board at the position of the button 71, and the protrusion corresponds to the control button on the circuit board. This ensures the sealing of the gap between the button 71 and the passage.

[0192] Specifically, such as Figure 1 , Figure 2 As shown, an opening is provided in the first housing 11 so that after the respiratory therapy device is placed on the table, the user can directly operate the button 71 from above.

[0193] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0194] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0195] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A portable respiratory therapy device, comprising a housing and a fan assembly disposed inside the housing, the fan assembly having an air inlet and an air outlet, characterized in that, The housing has a first end face and a second end face along a first direction. The first end face has an air inlet communicating with the air inlet, and the second end face has an air outlet communicating with the air outlet. The axis of the air inlet and the axis of the air outlet are arranged parallel to each other.

2. The portable respiratory therapy device according to claim 1, characterized in that, Along the first direction, the housing is provided with an air inlet buffer zone, a fan installation area and an air outlet buffer zone in sequence, with the air inlet located in the air inlet buffer zone and the air outlet located in the air outlet buffer zone.

3. The portable respiratory therapy device according to claim 2, characterized in that, The air intake buffer zone is provided with an air intake shell, which has an inlet and an outlet. Inside the air intake shell, there are flow guide ribs that extend in a spiral shape in a plane perpendicular to the first direction and form a spiral air intake duct. The airflow enters the inlet after passing through the air intake port, and flows from the outlet to the fan installation area after passing through the air intake duct.

4. The portable respiratory therapy device according to claim 3, characterized in that, The air intake housing is also provided with a flow divider located in the air intake duct. The flow divider includes a flow divider rib extending spirally from the inlet to the outlet to divide the air intake duct into a first spiral section and a second spiral section in parallel.

5. The portable respiratory therapy device according to claim 4, characterized in that, The diverting rib can extend into the inlet to be positioned and engaged with the edge of the inlet, and divide the inlet into a first airflow inlet and a second airflow inlet. The first airflow inlet is connected to the first spiral section, and the second airflow inlet is connected to the second spiral section.

6. The portable respiratory therapy device according to claim 3, characterized in that, A first end cap is provided at the first end face, and a battery mounting groove is provided on the side of the air intake shell facing the first end cap. The first end cap is provided with a limiting rib, which can abut against the battery to restrict the battery within the battery mounting groove.

7. The portable respiratory therapy device according to claim 2, characterized in that, The fan installation area has an inner shell. Along a direction perpendicular to the first direction, an air guide area and an assembly area are formed inside the inner shell. The fan assembly is installed in the assembly area. The air guide area and the air inlet are connected to deliver gas to the fan assembly.

8. The portable respiratory therapy device according to claim 7, characterized in that, The thickness of the air guide zone is less than the thickness of the assembly zone, so that an installation space for mounting the circuit board is formed between the mounting inner shell and the outer shell corresponding to the air guide zone.

9. The portable respiratory therapy device according to claim 8, characterized in that, The portable respiratory therapy device also includes a circuit board, which comprises a first plate and a second plate, wherein at least a portion of the first plate is located within the mounting space and the second plate is located in the exhaust buffer zone.

10. The portable respiratory therapy device according to claim 7, characterized in that, The axis of the fan assembly is perpendicular to the first direction. The air inlet is located at the top of the fan assembly. The air guiding area includes an extension section and a guiding section communicating with the air inlet. There is a bend between the extension section and the guiding section. A sound-absorbing component is provided at the bend.

11. The portable respiratory therapy device according to claim 7, characterized in that, The fan assembly includes an impeller and a drive unit. The housing of the drive unit is supported by the mounting inner shell, and there is a buffer gap between the drive shaft of the drive unit and the mounting inner shell.

12. The portable respiratory therapy device according to claim 2, characterized in that, The fan assembly is located within the fan installation area. The air outlet is connected to an air outlet pipe. A connecting pipe that connects to the air outlet pipe is provided in the air outlet buffer zone, so that an air outlet duct is formed inside the air outlet pipe and the connecting pipe, and an arc-shaped bend flow channel is formed inside the air outlet pipe.

13. The portable respiratory therapy device according to claim 12, characterized in that, The air outlet duct is provided with an air outlet grille to divide the air outlet duct into multiple air outlet openings, and the air outlet grille is at least partially located inside the air outlet pipe.

14. The portable respiratory therapy device according to claim 2, characterized in that, The second end face is provided with a insertion groove, the air outlet is provided in the insertion groove, the groove wall of the insertion groove is provided with a guide slope, and the inner circumference of the air outlet is provided with a snap-fit ​​structure for snap-fitting and fixing with the pipeline.

15. The portable respiratory therapy device according to claim 1, characterized in that, A decorative shell covers part of the outer shell to form a step between the decorative shell and the shell, the step forming a gripping area.

16. The portable respiratory therapy device according to claim 1, characterized in that, The portable respiratory therapy device also includes a button assembly, which includes a button and a sealing gasket. The button is fixed to the sealing gasket, and the sealing gasket is fixed to the housing. The housing has a passage for the button to pass through.

Images